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portable: release 0.93
[got-portable.git] / tog / tog.c
blobef460ef97a1a026c9f09084327688fc233fa180d
1 /*
2 * Copyright (c) 2018, 2019, 2020 Stefan Sperling <stsp@openbsd.org>
3 *
4 * Permission to use, copy, modify, and distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
17 #include "got_compat.h"
18
19 #include <sys/queue.h>
20 #include <sys/stat.h>
21 #include <sys/ioctl.h>
22
23 #include <ctype.h>
24 #include <errno.h>
25 #if defined(__FreeBSD__) || defined(__APPLE__)
26 #define _XOPEN_SOURCE_EXTENDED /* for ncurses wide-character functions */
27 #endif
28 #include <curses.h>
29 #include <panel.h>
30 #include <locale.h>
31 #include <signal.h>
32 #include <stdlib.h>
33 #include <stdarg.h>
34 #include <stdio.h>
35 #include <getopt.h>
36 #include <string.h>
37 #include <err.h>
38 #include <unistd.h>
39 #include <limits.h>
40 #include <wchar.h>
41 #include <time.h>
42 #include <pthread.h>
43 #include <libgen.h>
44 #include <regex.h>
45 #include <sched.h>
46
47 #include "got_version.h"
48 #include "got_error.h"
49 #include "got_object.h"
50 #include "got_reference.h"
51 #include "got_repository.h"
52 #include "got_diff.h"
53 #include "got_opentemp.h"
54 #include "got_utf8.h"
55 #include "got_cancel.h"
56 #include "got_commit_graph.h"
57 #include "got_blame.h"
58 #include "got_privsep.h"
59 #include "got_path.h"
60 #include "got_worktree.h"
61 #include "got_keyword.h"
62
63 #ifndef MIN
64 #define MIN(_a,_b) ((_a) < (_b) ? (_a) : (_b))
65 #endif
66
67 #ifndef MAX
68 #define MAX(_a,_b) ((_a) > (_b) ? (_a) : (_b))
69 #endif
70
71 #ifndef CTRL
72 #define CTRL(x) ((x) & 0x1f)
73 #endif
74
75 #ifndef nitems
76 #define nitems(_a) (sizeof((_a)) / sizeof((_a)[0]))
77 #endif
78
79 struct tog_cmd {
80 const char *name;
81 const struct got_error *(*cmd_main)(int, char *[]);
82 void (*cmd_usage)(void);
83 };
84
85 __dead static void usage(int, int);
86 __dead static void usage_log(void);
87 __dead static void usage_diff(void);
88 __dead static void usage_blame(void);
89 __dead static void usage_tree(void);
90 __dead static void usage_ref(void);
91
92 static const struct got_error* cmd_log(int, char *[]);
93 static const struct got_error* cmd_diff(int, char *[]);
94 static const struct got_error* cmd_blame(int, char *[]);
95 static const struct got_error* cmd_tree(int, char *[]);
96 static const struct got_error* cmd_ref(int, char *[]);
97
98 static const struct tog_cmd tog_commands[] = {
99 { "log", cmd_log, usage_log },
100 { "diff", cmd_diff, usage_diff },
101 { "blame", cmd_blame, usage_blame },
102 { "tree", cmd_tree, usage_tree },
103 { "ref", cmd_ref, usage_ref },
104 };
105
106 enum tog_view_type {
107 TOG_VIEW_DIFF,
108 TOG_VIEW_LOG,
109 TOG_VIEW_BLAME,
110 TOG_VIEW_TREE,
111 TOG_VIEW_REF,
112 TOG_VIEW_HELP
113 };
114
115 /* Match _DIFF to _HELP with enum tog_view_type TOG_VIEW_* counterparts. */
116 enum tog_keymap_type {
117 TOG_KEYMAP_KEYS = -2,
118 TOG_KEYMAP_GLOBAL,
119 TOG_KEYMAP_DIFF,
120 TOG_KEYMAP_LOG,
121 TOG_KEYMAP_BLAME,
122 TOG_KEYMAP_TREE,
123 TOG_KEYMAP_REF,
124 TOG_KEYMAP_HELP
125 };
126
127 enum tog_view_mode {
128 TOG_VIEW_SPLIT_NONE,
129 TOG_VIEW_SPLIT_VERT,
130 TOG_VIEW_SPLIT_HRZN
131 };
132
133 #define HSPLIT_SCALE 0.3f /* default horizontal split scale */
134
135 #define TOG_EOF_STRING "(END)"
136
137 struct commit_queue_entry {
138 TAILQ_ENTRY(commit_queue_entry) entry;
139 struct got_object_id *id;
140 struct got_commit_object *commit;
141 int idx;
142 };
143 TAILQ_HEAD(commit_queue_head, commit_queue_entry);
144 struct commit_queue {
145 int ncommits;
146 struct commit_queue_head head;
147 };
148
149 struct tog_color {
150 STAILQ_ENTRY(tog_color) entry;
151 regex_t regex;
152 short colorpair;
153 };
154 STAILQ_HEAD(tog_colors, tog_color);
155
156 static struct got_reflist_head tog_refs = TAILQ_HEAD_INITIALIZER(tog_refs);
157 static struct got_reflist_object_id_map *tog_refs_idmap;
158 static struct {
159 struct got_object_id *id;
160 int idx;
161 char marker;
162 } tog_base_commit;
163 static enum got_diff_algorithm tog_diff_algo = GOT_DIFF_ALGORITHM_MYERS;
164
165 static const struct got_error *
166 tog_ref_cmp_by_name(void *arg, int *cmp, struct got_reference *re1,
167 struct got_reference* re2)
168 {
169 const char *name1 = got_ref_get_name(re1);
170 const char *name2 = got_ref_get_name(re2);
171 int isbackup1, isbackup2;
172
173 /* Sort backup refs towards the bottom of the list. */
174 isbackup1 = strncmp(name1, "refs/got/backup/", 16) == 0;
175 isbackup2 = strncmp(name2, "refs/got/backup/", 16) == 0;
176 if (!isbackup1 && isbackup2) {
177 *cmp = -1;
178 return NULL;
179 } else if (isbackup1 && !isbackup2) {
180 *cmp = 1;
181 return NULL;
182 }
183
184 *cmp = got_path_cmp(name1, name2, strlen(name1), strlen(name2));
185 return NULL;
186 }
187
188 static const struct got_error *
189 tog_load_refs(struct got_repository *repo, int sort_by_date)
190 {
191 const struct got_error *err;
192
193 err = got_ref_list(&tog_refs, repo, NULL, sort_by_date ?
194 got_ref_cmp_by_commit_timestamp_descending : tog_ref_cmp_by_name,
195 repo);
196 if (err)
197 return err;
198
199 return got_reflist_object_id_map_create(&tog_refs_idmap, &tog_refs,
200 repo);
201 }
202
203 static void
204 tog_free_refs(void)
205 {
206 if (tog_refs_idmap) {
207 got_reflist_object_id_map_free(tog_refs_idmap);
208 tog_refs_idmap = NULL;
209 }
210 got_ref_list_free(&tog_refs);
211 }
212
213 static const struct got_error *
214 add_color(struct tog_colors *colors, const char *pattern,
215 int idx, short color)
216 {
217 const struct got_error *err = NULL;
218 struct tog_color *tc;
219 int regerr = 0;
220
221 if (idx < 1 || idx > COLOR_PAIRS - 1)
222 return NULL;
223
224 init_pair(idx, color, -1);
225
226 tc = calloc(1, sizeof(*tc));
227 if (tc == NULL)
228 return got_error_from_errno("calloc");
229 regerr = regcomp(&tc->regex, pattern,
230 REG_EXTENDED | REG_NOSUB | REG_NEWLINE);
231 if (regerr) {
232 static char regerr_msg[512];
233 static char err_msg[512];
234 regerror(regerr, &tc->regex, regerr_msg,
235 sizeof(regerr_msg));
236 snprintf(err_msg, sizeof(err_msg), "regcomp: %s",
237 regerr_msg);
238 err = got_error_msg(GOT_ERR_REGEX, err_msg);
239 free(tc);
240 return err;
241 }
242 tc->colorpair = idx;
243 STAILQ_INSERT_HEAD(colors, tc, entry);
244 return NULL;
245 }
246
247 static void
248 free_colors(struct tog_colors *colors)
249 {
250 struct tog_color *tc;
251
252 while (!STAILQ_EMPTY(colors)) {
253 tc = STAILQ_FIRST(colors);
254 STAILQ_REMOVE_HEAD(colors, entry);
255 regfree(&tc->regex);
256 free(tc);
257 }
258 }
259
260 static struct tog_color *
261 get_color(struct tog_colors *colors, int colorpair)
262 {
263 struct tog_color *tc = NULL;
264
265 STAILQ_FOREACH(tc, colors, entry) {
266 if (tc->colorpair == colorpair)
267 return tc;
268 }
269
270 return NULL;
271 }
272
273 static int
274 default_color_value(const char *envvar)
275 {
276 if (strcmp(envvar, "TOG_COLOR_DIFF_MINUS") == 0)
277 return COLOR_MAGENTA;
278 if (strcmp(envvar, "TOG_COLOR_DIFF_PLUS") == 0)
279 return COLOR_CYAN;
280 if (strcmp(envvar, "TOG_COLOR_DIFF_CHUNK_HEADER") == 0)
281 return COLOR_YELLOW;
282 if (strcmp(envvar, "TOG_COLOR_DIFF_META") == 0)
283 return COLOR_GREEN;
284 if (strcmp(envvar, "TOG_COLOR_TREE_SUBMODULE") == 0)
285 return COLOR_MAGENTA;
286 if (strcmp(envvar, "TOG_COLOR_TREE_SYMLINK") == 0)
287 return COLOR_MAGENTA;
288 if (strcmp(envvar, "TOG_COLOR_TREE_DIRECTORY") == 0)
289 return COLOR_CYAN;
290 if (strcmp(envvar, "TOG_COLOR_TREE_EXECUTABLE") == 0)
291 return COLOR_GREEN;
292 if (strcmp(envvar, "TOG_COLOR_COMMIT") == 0)
293 return COLOR_GREEN;
294 if (strcmp(envvar, "TOG_COLOR_AUTHOR") == 0)
295 return COLOR_CYAN;
296 if (strcmp(envvar, "TOG_COLOR_DATE") == 0)
297 return COLOR_YELLOW;
298 if (strcmp(envvar, "TOG_COLOR_REFS_HEADS") == 0)
299 return COLOR_GREEN;
300 if (strcmp(envvar, "TOG_COLOR_REFS_TAGS") == 0)
301 return COLOR_MAGENTA;
302 if (strcmp(envvar, "TOG_COLOR_REFS_REMOTES") == 0)
303 return COLOR_YELLOW;
304 if (strcmp(envvar, "TOG_COLOR_REFS_BACKUP") == 0)
305 return COLOR_CYAN;
306
307 return -1;
308 }
309
310 static int
311 get_color_value(const char *envvar)
312 {
313 const char *val = getenv(envvar);
314
315 if (val == NULL)
316 return default_color_value(envvar);
317
318 if (strcasecmp(val, "black") == 0)
319 return COLOR_BLACK;
320 if (strcasecmp(val, "red") == 0)
321 return COLOR_RED;
322 if (strcasecmp(val, "green") == 0)
323 return COLOR_GREEN;
324 if (strcasecmp(val, "yellow") == 0)
325 return COLOR_YELLOW;
326 if (strcasecmp(val, "blue") == 0)
327 return COLOR_BLUE;
328 if (strcasecmp(val, "magenta") == 0)
329 return COLOR_MAGENTA;
330 if (strcasecmp(val, "cyan") == 0)
331 return COLOR_CYAN;
332 if (strcasecmp(val, "white") == 0)
333 return COLOR_WHITE;
334 if (strcasecmp(val, "default") == 0)
335 return -1;
336
337 return default_color_value(envvar);
338 }
339
340 struct tog_diff_view_state {
341 struct got_object_id *id1, *id2;
342 const char *label1, *label2;
343 FILE *f, *f1, *f2;
344 int fd1, fd2;
345 int lineno;
346 int first_displayed_line;
347 int last_displayed_line;
348 int eof;
349 int diff_context;
350 int ignore_whitespace;
351 int force_text_diff;
352 struct got_repository *repo;
353 struct got_diff_line *lines;
354 size_t nlines;
355 int matched_line;
356 int selected_line;
357
358 /* passed from log or blame view; may be NULL */
359 struct tog_view *parent_view;
360 };
361
362 pthread_mutex_t tog_mutex = PTHREAD_MUTEX_INITIALIZER;
363 static volatile sig_atomic_t tog_thread_error;
364
365 struct tog_log_thread_args {
366 pthread_cond_t need_commits;
367 pthread_cond_t commit_loaded;
368 int commits_needed;
369 int load_all;
370 struct got_commit_graph *graph;
371 struct commit_queue *real_commits;
372 const char *in_repo_path;
373 struct got_object_id *start_id;
374 struct got_repository *repo;
375 int *pack_fds;
376 int log_complete;
377 pthread_cond_t log_loaded;
378 sig_atomic_t *quit;
379 struct commit_queue_entry **first_displayed_entry;
380 struct commit_queue_entry **selected_entry;
381 int *searching;
382 int *search_next_done;
383 regex_t *regex;
384 int *limiting;
385 int limit_match;
386 regex_t *limit_regex;
387 struct commit_queue *limit_commits;
388 struct got_worktree *worktree;
389 int need_commit_marker;
390 };
391
392 struct tog_log_view_state {
393 struct commit_queue *commits;
394 struct commit_queue_entry *first_displayed_entry;
395 struct commit_queue_entry *last_displayed_entry;
396 struct commit_queue_entry *selected_entry;
397 struct commit_queue real_commits;
398 int selected;
399 char *in_repo_path;
400 char *head_ref_name;
401 int log_branches;
402 struct got_repository *repo;
403 struct got_object_id *start_id;
404 sig_atomic_t quit;
405 pthread_t thread;
406 struct tog_log_thread_args thread_args;
407 struct commit_queue_entry *matched_entry;
408 struct commit_queue_entry *search_entry;
409 struct tog_colors colors;
410 int use_committer;
411 int limit_view;
412 regex_t limit_regex;
413 struct commit_queue limit_commits;
414 };
415
416 #define TOG_COLOR_DIFF_MINUS 1
417 #define TOG_COLOR_DIFF_PLUS 2
418 #define TOG_COLOR_DIFF_CHUNK_HEADER 3
419 #define TOG_COLOR_DIFF_META 4
420 #define TOG_COLOR_TREE_SUBMODULE 5
421 #define TOG_COLOR_TREE_SYMLINK 6
422 #define TOG_COLOR_TREE_DIRECTORY 7
423 #define TOG_COLOR_TREE_EXECUTABLE 8
424 #define TOG_COLOR_COMMIT 9
425 #define TOG_COLOR_AUTHOR 10
426 #define TOG_COLOR_DATE 11
427 #define TOG_COLOR_REFS_HEADS 12
428 #define TOG_COLOR_REFS_TAGS 13
429 #define TOG_COLOR_REFS_REMOTES 14
430 #define TOG_COLOR_REFS_BACKUP 15
431
432 struct tog_blame_cb_args {
433 struct tog_blame_line *lines; /* one per line */
434 int nlines;
435
436 struct tog_view *view;
437 struct got_object_id *commit_id;
438 int *quit;
439 };
440
441 struct tog_blame_thread_args {
442 const char *path;
443 struct got_repository *repo;
444 struct tog_blame_cb_args *cb_args;
445 int *complete;
446 got_cancel_cb cancel_cb;
447 void *cancel_arg;
448 pthread_cond_t blame_complete;
449 };
450
451 struct tog_blame {
452 FILE *f;
453 off_t filesize;
454 struct tog_blame_line *lines;
455 int nlines;
456 off_t *line_offsets;
457 pthread_t thread;
458 struct tog_blame_thread_args thread_args;
459 struct tog_blame_cb_args cb_args;
460 const char *path;
461 int *pack_fds;
462 };
463
464 struct tog_blame_view_state {
465 int first_displayed_line;
466 int last_displayed_line;
467 int selected_line;
468 int last_diffed_line;
469 int blame_complete;
470 int eof;
471 int done;
472 struct got_object_id_queue blamed_commits;
473 struct got_object_qid *blamed_commit;
474 char *path;
475 struct got_repository *repo;
476 struct got_object_id *commit_id;
477 struct got_object_id *id_to_log;
478 struct tog_blame blame;
479 int matched_line;
480 struct tog_colors colors;
481 };
482
483 struct tog_parent_tree {
484 TAILQ_ENTRY(tog_parent_tree) entry;
485 struct got_tree_object *tree;
486 struct got_tree_entry *first_displayed_entry;
487 struct got_tree_entry *selected_entry;
488 int selected;
489 };
490
491 TAILQ_HEAD(tog_parent_trees, tog_parent_tree);
492
493 struct tog_tree_view_state {
494 char *tree_label;
495 struct got_object_id *commit_id;/* commit which this tree belongs to */
496 struct got_tree_object *root; /* the commit's root tree entry */
497 struct got_tree_object *tree; /* currently displayed (sub-)tree */
498 struct got_tree_entry *first_displayed_entry;
499 struct got_tree_entry *last_displayed_entry;
500 struct got_tree_entry *selected_entry;
501 int ndisplayed, selected, show_ids;
502 struct tog_parent_trees parents; /* parent trees of current sub-tree */
503 char *head_ref_name;
504 struct got_repository *repo;
505 struct got_tree_entry *matched_entry;
506 struct tog_colors colors;
507 };
508
509 struct tog_reflist_entry {
510 TAILQ_ENTRY(tog_reflist_entry) entry;
511 struct got_reference *ref;
512 int idx;
513 };
514
515 TAILQ_HEAD(tog_reflist_head, tog_reflist_entry);
516
517 struct tog_ref_view_state {
518 struct tog_reflist_head refs;
519 struct tog_reflist_entry *first_displayed_entry;
520 struct tog_reflist_entry *last_displayed_entry;
521 struct tog_reflist_entry *selected_entry;
522 int nrefs, ndisplayed, selected, show_date, show_ids, sort_by_date;
523 struct got_repository *repo;
524 struct tog_reflist_entry *matched_entry;
525 struct tog_colors colors;
526 };
527
528 struct tog_help_view_state {
529 FILE *f;
530 off_t *line_offsets;
531 size_t nlines;
532 int lineno;
533 int first_displayed_line;
534 int last_displayed_line;
535 int eof;
536 int matched_line;
537 int selected_line;
538 int all;
539 enum tog_keymap_type type;
540 };
541
542 #define GENERATE_HELP \
543 KEYMAP_("Global", TOG_KEYMAP_GLOBAL), \
544 KEY_("H F1", "Open view-specific help (double tap for all help)"), \
545 KEY_("k C-p Up", "Move cursor or page up one line"), \
546 KEY_("j C-n Down", "Move cursor or page down one line"), \
547 KEY_("C-b b PgUp", "Scroll the view up one page"), \
548 KEY_("C-f f PgDn Space", "Scroll the view down one page"), \
549 KEY_("C-u u", "Scroll the view up one half page"), \
550 KEY_("C-d d", "Scroll the view down one half page"), \
551 KEY_("g", "Go to line N (default: first line)"), \
552 KEY_("Home =", "Go to the first line"), \
553 KEY_("G", "Go to line N (default: last line)"), \
554 KEY_("End *", "Go to the last line"), \
555 KEY_("l Right", "Scroll the view right"), \
556 KEY_("h Left", "Scroll the view left"), \
557 KEY_("$", "Scroll view to the rightmost position"), \
558 KEY_("0", "Scroll view to the leftmost position"), \
559 KEY_("-", "Decrease size of the focussed split"), \
560 KEY_("+", "Increase size of the focussed split"), \
561 KEY_("Tab", "Switch focus between views"), \
562 KEY_("F", "Toggle fullscreen mode"), \
563 KEY_("S", "Switch split-screen layout"), \
564 KEY_("/", "Open prompt to enter search term"), \
565 KEY_("n", "Find next line/token matching the current search term"), \
566 KEY_("N", "Find previous line/token matching the current search term"),\
567 KEY_("q", "Quit the focussed view; Quit help screen"), \
568 KEY_("Q", "Quit tog"), \
569 \
570 KEYMAP_("Log view", TOG_KEYMAP_LOG), \
571 KEY_("< ,", "Move cursor up one commit"), \
572 KEY_("> .", "Move cursor down one commit"), \
573 KEY_("Enter", "Open diff view of the selected commit"), \
574 KEY_("B", "Reload the log view and toggle display of merged commits"), \
575 KEY_("R", "Open ref view of all repository references"), \
576 KEY_("T", "Display tree view of the repository from the selected" \
577 " commit"), \
578 KEY_("@", "Toggle between displaying author and committer name"), \
579 KEY_("&", "Open prompt to enter term to limit commits displayed"), \
580 KEY_("C-g Backspace", "Cancel current search or log operation"), \
581 KEY_("C-l", "Reload the log view with new commits in the repository"), \
582 \
583 KEYMAP_("Diff view", TOG_KEYMAP_DIFF), \
584 KEY_("K < ,", "Display diff of next line in the file/log entry"), \
585 KEY_("J > .", "Display diff of previous line in the file/log entry"), \
586 KEY_("A", "Toggle between Myers and Patience diff algorithm"), \
587 KEY_("a", "Toggle treatment of file as ASCII irrespective of binary" \
588 " data"), \
589 KEY_("(", "Go to the previous file in the diff"), \
590 KEY_(")", "Go to the next file in the diff"), \
591 KEY_("{", "Go to the previous hunk in the diff"), \
592 KEY_("}", "Go to the next hunk in the diff"), \
593 KEY_("[", "Decrease the number of context lines"), \
594 KEY_("]", "Increase the number of context lines"), \
595 KEY_("w", "Toggle ignore whitespace-only changes in the diff"), \
596 \
597 KEYMAP_("Blame view", TOG_KEYMAP_BLAME), \
598 KEY_("Enter", "Display diff view of the selected line's commit"), \
599 KEY_("A", "Toggle diff algorithm between Myers and Patience"), \
600 KEY_("L", "Open log view for the currently selected annotated line"), \
601 KEY_("C", "Reload view with the previously blamed commit"), \
602 KEY_("c", "Reload view with the version of the file found in the" \
603 " selected line's commit"), \
604 KEY_("p", "Reload view with the version of the file found in the" \
605 " selected line's parent commit"), \
606 \
607 KEYMAP_("Tree view", TOG_KEYMAP_TREE), \
608 KEY_("Enter", "Enter selected directory or open blame view of the" \
609 " selected file"), \
610 KEY_("L", "Open log view for the selected entry"), \
611 KEY_("R", "Open ref view of all repository references"), \
612 KEY_("i", "Show object IDs for all tree entries"), \
613 KEY_("Backspace", "Return to the parent directory"), \
614 \
615 KEYMAP_("Ref view", TOG_KEYMAP_REF), \
616 KEY_("Enter", "Display log view of the selected reference"), \
617 KEY_("T", "Display tree view of the selected reference"), \
618 KEY_("i", "Toggle display of IDs for all non-symbolic references"), \
619 KEY_("m", "Toggle display of last modified date for each reference"), \
620 KEY_("o", "Toggle reference sort order (name -> timestamp)"), \
621 KEY_("C-l", "Reload view with all repository references")
622
623 struct tog_key_map {
624 const char *keys;
625 const char *info;
626 enum tog_keymap_type type;
627 };
628
629 /* curses io for tog regress */
630 struct tog_io {
631 FILE *cin;
632 FILE *cout;
633 FILE *f;
634 FILE *sdump;
635 char *input_str;
636 int wait_for_ui;
637 } tog_io;
638 static int using_mock_io;
639
640 #define TOG_KEY_SCRDUMP SHRT_MIN
641
642 /*
643 * We implement two types of views: parent views and child views.
644 *
645 * The 'Tab' key switches focus between a parent view and its child view.
646 * Child views are shown side-by-side to their parent view, provided
647 * there is enough screen estate.
648 *
649 * When a new view is opened from within a parent view, this new view
650 * becomes a child view of the parent view, replacing any existing child.
651 *
652 * When a new view is opened from within a child view, this new view
653 * becomes a parent view which will obscure the views below until the
654 * user quits the new parent view by typing 'q'.
655 *
656 * This list of views contains parent views only.
657 * Child views are only pointed to by their parent view.
658 */
659 TAILQ_HEAD(tog_view_list_head, tog_view);
660
661 struct tog_view {
662 TAILQ_ENTRY(tog_view) entry;
663 WINDOW *window;
664 PANEL *panel;
665 int nlines, ncols, begin_y, begin_x; /* based on split height/width */
666 int resized_y, resized_x; /* begin_y/x based on user resizing */
667 int maxx, x; /* max column and current start column */
668 int lines, cols; /* copies of LINES and COLS */
669 int nscrolled, offset; /* lines scrolled and hsplit line offset */
670 int gline, hiline; /* navigate to and highlight this nG line */
671 int ch, count; /* current keymap and count prefix */
672 int resized; /* set when in a resize event */
673 int focussed; /* Only set on one parent or child view at a time. */
674 int dying;
675 struct tog_view *parent;
676 struct tog_view *child;
677
678 /*
679 * This flag is initially set on parent views when a new child view
680 * is created. It gets toggled when the 'Tab' key switches focus
681 * between parent and child.
682 * The flag indicates whether focus should be passed on to our child
683 * view if this parent view gets picked for focus after another parent
684 * view was closed. This prevents child views from losing focus in such
685 * situations.
686 */
687 int focus_child;
688
689 enum tog_view_mode mode;
690 /* type-specific state */
691 enum tog_view_type type;
692 union {
693 struct tog_diff_view_state diff;
694 struct tog_log_view_state log;
695 struct tog_blame_view_state blame;
696 struct tog_tree_view_state tree;
697 struct tog_ref_view_state ref;
698 struct tog_help_view_state help;
699 } state;
700
701 const struct got_error *(*show)(struct tog_view *);
702 const struct got_error *(*input)(struct tog_view **,
703 struct tog_view *, int);
704 const struct got_error *(*reset)(struct tog_view *);
705 const struct got_error *(*resize)(struct tog_view *, int);
706 const struct got_error *(*close)(struct tog_view *);
707
708 const struct got_error *(*search_start)(struct tog_view *);
709 const struct got_error *(*search_next)(struct tog_view *);
710 void (*search_setup)(struct tog_view *, FILE **, off_t **, size_t *,
711 int **, int **, int **, int **);
712 int search_started;
713 int searching;
714 #define TOG_SEARCH_FORWARD 1
715 #define TOG_SEARCH_BACKWARD 2
716 int search_next_done;
717 #define TOG_SEARCH_HAVE_MORE 1
718 #define TOG_SEARCH_NO_MORE 2
719 #define TOG_SEARCH_HAVE_NONE 3
720 regex_t regex;
721 regmatch_t regmatch;
722 const char *action;
723 };
724
725 static const struct got_error *open_diff_view(struct tog_view *,
726 struct got_object_id *, struct got_object_id *,
727 const char *, const char *, int, int, int, struct tog_view *,
728 struct got_repository *);
729 static const struct got_error *show_diff_view(struct tog_view *);
730 static const struct got_error *input_diff_view(struct tog_view **,
731 struct tog_view *, int);
732 static const struct got_error *reset_diff_view(struct tog_view *);
733 static const struct got_error* close_diff_view(struct tog_view *);
734 static const struct got_error *search_start_diff_view(struct tog_view *);
735 static void search_setup_diff_view(struct tog_view *, FILE **, off_t **,
736 size_t *, int **, int **, int **, int **);
737 static const struct got_error *search_next_view_match(struct tog_view *);
738
739 static const struct got_error *open_log_view(struct tog_view *,
740 struct got_object_id *, struct got_repository *,
741 const char *, const char *, int, struct got_worktree *);
742 static const struct got_error * show_log_view(struct tog_view *);
743 static const struct got_error *input_log_view(struct tog_view **,
744 struct tog_view *, int);
745 static const struct got_error *resize_log_view(struct tog_view *, int);
746 static const struct got_error *close_log_view(struct tog_view *);
747 static const struct got_error *search_start_log_view(struct tog_view *);
748 static const struct got_error *search_next_log_view(struct tog_view *);
749
750 static const struct got_error *open_blame_view(struct tog_view *, char *,
751 struct got_object_id *, struct got_repository *);
752 static const struct got_error *show_blame_view(struct tog_view *);
753 static const struct got_error *input_blame_view(struct tog_view **,
754 struct tog_view *, int);
755 static const struct got_error *reset_blame_view(struct tog_view *);
756 static const struct got_error *close_blame_view(struct tog_view *);
757 static const struct got_error *search_start_blame_view(struct tog_view *);
758 static void search_setup_blame_view(struct tog_view *, FILE **, off_t **,
759 size_t *, int **, int **, int **, int **);
760
761 static const struct got_error *open_tree_view(struct tog_view *,
762 struct got_object_id *, const char *, struct got_repository *);
763 static const struct got_error *show_tree_view(struct tog_view *);
764 static const struct got_error *input_tree_view(struct tog_view **,
765 struct tog_view *, int);
766 static const struct got_error *close_tree_view(struct tog_view *);
767 static const struct got_error *search_start_tree_view(struct tog_view *);
768 static const struct got_error *search_next_tree_view(struct tog_view *);
769
770 static const struct got_error *open_ref_view(struct tog_view *,
771 struct got_repository *);
772 static const struct got_error *show_ref_view(struct tog_view *);
773 static const struct got_error *input_ref_view(struct tog_view **,
774 struct tog_view *, int);
775 static const struct got_error *close_ref_view(struct tog_view *);
776 static const struct got_error *search_start_ref_view(struct tog_view *);
777 static const struct got_error *search_next_ref_view(struct tog_view *);
778
779 static const struct got_error *open_help_view(struct tog_view *,
780 struct tog_view *);
781 static const struct got_error *show_help_view(struct tog_view *);
782 static const struct got_error *input_help_view(struct tog_view **,
783 struct tog_view *, int);
784 static const struct got_error *reset_help_view(struct tog_view *);
785 static const struct got_error* close_help_view(struct tog_view *);
786 static const struct got_error *search_start_help_view(struct tog_view *);
787 static void search_setup_help_view(struct tog_view *, FILE **, off_t **,
788 size_t *, int **, int **, int **, int **);
789
790 static volatile sig_atomic_t tog_sigwinch_received;
791 static volatile sig_atomic_t tog_sigpipe_received;
792 static volatile sig_atomic_t tog_sigcont_received;
793 static volatile sig_atomic_t tog_sigint_received;
794 static volatile sig_atomic_t tog_sigterm_received;
795
796 static void
797 tog_sigwinch(int signo)
798 {
799 tog_sigwinch_received = 1;
800 }
801
802 static void
803 tog_sigpipe(int signo)
804 {
805 tog_sigpipe_received = 1;
806 }
807
808 static void
809 tog_sigcont(int signo)
810 {
811 tog_sigcont_received = 1;
812 }
813
814 static void
815 tog_sigint(int signo)
816 {
817 tog_sigint_received = 1;
818 }
819
820 static void
821 tog_sigterm(int signo)
822 {
823 tog_sigterm_received = 1;
824 }
825
826 static int
827 tog_fatal_signal_received(void)
828 {
829 return (tog_sigpipe_received ||
830 tog_sigint_received || tog_sigterm_received);
831 }
832
833 static const struct got_error *
834 view_close(struct tog_view *view)
835 {
836 const struct got_error *err = NULL, *child_err = NULL;
837
838 if (view->child) {
839 child_err = view_close(view->child);
840 view->child = NULL;
841 }
842 if (view->close)
843 err = view->close(view);
844 if (view->panel)
845 del_panel(view->panel);
846 if (view->window)
847 delwin(view->window);
848 free(view);
849 return err ? err : child_err;
850 }
851
852 static struct tog_view *
853 view_open(int nlines, int ncols, int begin_y, int begin_x,
854 enum tog_view_type type)
855 {
856 struct tog_view *view = calloc(1, sizeof(*view));
857
858 if (view == NULL)
859 return NULL;
860
861 view->type = type;
862 view->lines = LINES;
863 view->cols = COLS;
864 view->nlines = nlines ? nlines : LINES - begin_y;
865 view->ncols = ncols ? ncols : COLS - begin_x;
866 view->begin_y = begin_y;
867 view->begin_x = begin_x;
868 view->window = newwin(nlines, ncols, begin_y, begin_x);
869 if (view->window == NULL) {
870 view_close(view);
871 return NULL;
872 }
873 view->panel = new_panel(view->window);
874 if (view->panel == NULL ||
875 set_panel_userptr(view->panel, view) != OK) {
876 view_close(view);
877 return NULL;
878 }
879
880 keypad(view->window, TRUE);
881 return view;
882 }
883
884 static int
885 view_split_begin_x(int begin_x)
886 {
887 if (begin_x > 0 || COLS < 120)
888 return 0;
889 return (COLS - MAX(COLS / 2, 80));
890 }
891
892 /* XXX Stub till we decide what to do. */
893 static int
894 view_split_begin_y(int lines)
895 {
896 return lines * HSPLIT_SCALE;
897 }
898
899 static const struct got_error *view_resize(struct tog_view *);
900
901 static const struct got_error *
902 view_splitscreen(struct tog_view *view)
903 {
904 const struct got_error *err = NULL;
905
906 if (!view->resized && view->mode == TOG_VIEW_SPLIT_HRZN) {
907 if (view->resized_y && view->resized_y < view->lines)
908 view->begin_y = view->resized_y;
909 else
910 view->begin_y = view_split_begin_y(view->nlines);
911 view->begin_x = 0;
912 } else if (!view->resized) {
913 if (view->resized_x && view->resized_x < view->cols - 1 &&
914 view->cols > 119)
915 view->begin_x = view->resized_x;
916 else
917 view->begin_x = view_split_begin_x(0);
918 view->begin_y = 0;
919 }
920 view->nlines = LINES - view->begin_y;
921 view->ncols = COLS - view->begin_x;
922 view->lines = LINES;
923 view->cols = COLS;
924 err = view_resize(view);
925 if (err)
926 return err;
927
928 if (view->parent && view->mode == TOG_VIEW_SPLIT_HRZN)
929 view->parent->nlines = view->begin_y;
930
931 if (mvwin(view->window, view->begin_y, view->begin_x) == ERR)
932 return got_error_from_errno("mvwin");
933
934 return NULL;
935 }
936
937 static const struct got_error *
938 view_fullscreen(struct tog_view *view)
939 {
940 const struct got_error *err = NULL;
941
942 view->begin_x = 0;
943 view->begin_y = view->resized ? view->begin_y : 0;
944 view->nlines = view->resized ? view->nlines : LINES;
945 view->ncols = COLS;
946 view->lines = LINES;
947 view->cols = COLS;
948 err = view_resize(view);
949 if (err)
950 return err;
951
952 if (mvwin(view->window, view->begin_y, view->begin_x) == ERR)
953 return got_error_from_errno("mvwin");
954
955 return NULL;
956 }
957
958 static int
959 view_is_parent_view(struct tog_view *view)
960 {
961 return view->parent == NULL;
962 }
963
964 static int
965 view_is_splitscreen(struct tog_view *view)
966 {
967 return view->begin_x > 0 || view->begin_y > 0;
968 }
969
970 static int
971 view_is_fullscreen(struct tog_view *view)
972 {
973 return view->nlines == LINES && view->ncols == COLS;
974 }
975
976 static int
977 view_is_hsplit_top(struct tog_view *view)
978 {
979 return view->mode == TOG_VIEW_SPLIT_HRZN && view->child &&
980 view_is_splitscreen(view->child);
981 }
982
983 static void
984 view_border(struct tog_view *view)
985 {
986 PANEL *panel;
987 const struct tog_view *view_above;
988
989 if (view->parent)
990 return view_border(view->parent);
991
992 panel = panel_above(view->panel);
993 if (panel == NULL)
994 return;
995
996 view_above = panel_userptr(panel);
997 if (view->mode == TOG_VIEW_SPLIT_HRZN)
998 mvwhline(view->window, view_above->begin_y - 1,
999 view->begin_x, ACS_HLINE, view->ncols);
1000 else
1001 mvwvline(view->window, view->begin_y, view_above->begin_x - 1,
1002 ACS_VLINE, view->nlines);
1003 }
1004
1005 static const struct got_error *view_init_hsplit(struct tog_view *, int);
1006 static const struct got_error *request_log_commits(struct tog_view *);
1007 static const struct got_error *offset_selection_down(struct tog_view *);
1008 static void offset_selection_up(struct tog_view *);
1009 static void view_get_split(struct tog_view *, int *, int *);
1010
1011 static const struct got_error *
1012 view_resize(struct tog_view *view)
1013 {
1014 const struct got_error *err = NULL;
1015 int dif, nlines, ncols;
1016
1017 dif = LINES - view->lines; /* line difference */
1018
1019 if (view->lines > LINES)
1020 nlines = view->nlines - (view->lines - LINES);
1021 else
1022 nlines = view->nlines + (LINES - view->lines);
1023 if (view->cols > COLS)
1024 ncols = view->ncols - (view->cols - COLS);
1025 else
1026 ncols = view->ncols + (COLS - view->cols);
1027
1028 if (view->child) {
1029 int hs = view->child->begin_y;
1030
1031 if (!view_is_fullscreen(view))
1032 view->child->begin_x = view_split_begin_x(view->begin_x);
1033 if (view->mode == TOG_VIEW_SPLIT_HRZN ||
1034 view->child->begin_x == 0) {
1035 ncols = COLS;
1036
1037 view_fullscreen(view->child);
1038 if (view->child->focussed)
1039 show_panel(view->child->panel);
1040 else
1041 show_panel(view->panel);
1042 } else {
1043 ncols = view->child->begin_x;
1044
1045 view_splitscreen(view->child);
1046 show_panel(view->child->panel);
1047 }
1048 /*
1049 * XXX This is ugly and needs to be moved into the above
1050 * logic but "works" for now and my attempts at moving it
1051 * break either 'tab' or 'F' key maps in horizontal splits.
1052 */
1053 if (hs) {
1054 err = view_splitscreen(view->child);
1055 if (err)
1056 return err;
1057 if (dif < 0) { /* top split decreased */
1058 err = offset_selection_down(view);
1059 if (err)
1060 return err;
1061 }
1062 view_border(view);
1063 update_panels();
1064 doupdate();
1065 show_panel(view->child->panel);
1066 nlines = view->nlines;
1067 }
1068 } else if (view->parent == NULL)
1069 ncols = COLS;
1070
1071 if (view->resize && dif > 0) {
1072 err = view->resize(view, dif);
1073 if (err)
1074 return err;
1075 }
1076
1077 if (wresize(view->window, nlines, ncols) == ERR)
1078 return got_error_from_errno("wresize");
1079 if (replace_panel(view->panel, view->window) == ERR)
1080 return got_error_from_errno("replace_panel");
1081 wclear(view->window);
1082
1083 view->nlines = nlines;
1084 view->ncols = ncols;
1085 view->lines = LINES;
1086 view->cols = COLS;
1087
1088 return NULL;
1089 }
1090
1091 static const struct got_error *
1092 resize_log_view(struct tog_view *view, int increase)
1093 {
1094 struct tog_log_view_state *s = &view->state.log;
1095 const struct got_error *err = NULL;
1096 int n = 0;
1097
1098 if (s->selected_entry)
1099 n = s->selected_entry->idx + view->lines - s->selected;
1100
1101 /*
1102 * Request commits to account for the increased
1103 * height so we have enough to populate the view.
1104 */
1105 if (s->commits->ncommits < n) {
1106 view->nscrolled = n - s->commits->ncommits + increase + 1;
1107 err = request_log_commits(view);
1108 }
1109
1110 return err;
1111 }
1112
1113 static void
1114 view_adjust_offset(struct tog_view *view, int n)
1115 {
1116 if (n == 0)
1117 return;
1118
1119 if (view->parent && view->parent->offset) {
1120 if (view->parent->offset + n >= 0)
1121 view->parent->offset += n;
1122 else
1123 view->parent->offset = 0;
1124 } else if (view->offset) {
1125 if (view->offset - n >= 0)
1126 view->offset -= n;
1127 else
1128 view->offset = 0;
1129 }
1130 }
1131
1132 static const struct got_error *
1133 view_resize_split(struct tog_view *view, int resize)
1134 {
1135 const struct got_error *err = NULL;
1136 struct tog_view *v = NULL;
1137
1138 if (view->parent)
1139 v = view->parent;
1140 else
1141 v = view;
1142
1143 if (!v->child || !view_is_splitscreen(v->child))
1144 return NULL;
1145
1146 v->resized = v->child->resized = resize; /* lock for resize event */
1147
1148 if (view->mode == TOG_VIEW_SPLIT_HRZN) {
1149 if (v->child->resized_y)
1150 v->child->begin_y = v->child->resized_y;
1151 if (view->parent)
1152 v->child->begin_y -= resize;
1153 else
1154 v->child->begin_y += resize;
1155 if (v->child->begin_y < 3) {
1156 view->count = 0;
1157 v->child->begin_y = 3;
1158 } else if (v->child->begin_y > LINES - 1) {
1159 view->count = 0;
1160 v->child->begin_y = LINES - 1;
1161 }
1162 v->ncols = COLS;
1163 v->child->ncols = COLS;
1164 view_adjust_offset(view, resize);
1165 err = view_init_hsplit(v, v->child->begin_y);
1166 if (err)
1167 return err;
1168 v->child->resized_y = v->child->begin_y;
1169 } else {
1170 if (v->child->resized_x)
1171 v->child->begin_x = v->child->resized_x;
1172 if (view->parent)
1173 v->child->begin_x -= resize;
1174 else
1175 v->child->begin_x += resize;
1176 if (v->child->begin_x < 11) {
1177 view->count = 0;
1178 v->child->begin_x = 11;
1179 } else if (v->child->begin_x > COLS - 1) {
1180 view->count = 0;
1181 v->child->begin_x = COLS - 1;
1182 }
1183 v->child->resized_x = v->child->begin_x;
1184 }
1185
1186 v->child->mode = v->mode;
1187 v->child->nlines = v->lines - v->child->begin_y;
1188 v->child->ncols = v->cols - v->child->begin_x;
1189 v->focus_child = 1;
1190
1191 err = view_fullscreen(v);
1192 if (err)
1193 return err;
1194 err = view_splitscreen(v->child);
1195 if (err)
1196 return err;
1197
1198 if (v->mode == TOG_VIEW_SPLIT_HRZN) {
1199 err = offset_selection_down(v->child);
1200 if (err)
1201 return err;
1202 }
1203
1204 if (v->resize)
1205 err = v->resize(v, 0);
1206 else if (v->child->resize)
1207 err = v->child->resize(v->child, 0);
1208
1209 v->resized = v->child->resized = 0;
1210
1211 return err;
1212 }
1213
1214 static void
1215 view_transfer_size(struct tog_view *dst, struct tog_view *src)
1216 {
1217 struct tog_view *v = src->child ? src->child : src;
1218
1219 dst->resized_x = v->resized_x;
1220 dst->resized_y = v->resized_y;
1221 }
1222
1223 static const struct got_error *
1224 view_close_child(struct tog_view *view)
1225 {
1226 const struct got_error *err = NULL;
1227
1228 if (view->child == NULL)
1229 return NULL;
1230
1231 err = view_close(view->child);
1232 view->child = NULL;
1233 return err;
1234 }
1235
1236 static const struct got_error *
1237 view_set_child(struct tog_view *view, struct tog_view *child)
1238 {
1239 const struct got_error *err = NULL;
1240
1241 view->child = child;
1242 child->parent = view;
1243
1244 err = view_resize(view);
1245 if (err)
1246 return err;
1247
1248 if (view->child->resized_x || view->child->resized_y)
1249 err = view_resize_split(view, 0);
1250
1251 return err;
1252 }
1253
1254 static const struct got_error *view_dispatch_request(struct tog_view **,
1255 struct tog_view *, enum tog_view_type, int, int);
1256
1257 static const struct got_error *
1258 view_request_new(struct tog_view **requested, struct tog_view *view,
1259 enum tog_view_type request)
1260 {
1261 struct tog_view *new_view = NULL;
1262 const struct got_error *err;
1263 int y = 0, x = 0;
1264
1265 *requested = NULL;
1266
1267 if (view_is_parent_view(view) && request != TOG_VIEW_HELP)
1268 view_get_split(view, &y, &x);
1269
1270 err = view_dispatch_request(&new_view, view, request, y, x);
1271 if (err)
1272 return err;
1273
1274 if (view_is_parent_view(view) && view->mode == TOG_VIEW_SPLIT_HRZN &&
1275 request != TOG_VIEW_HELP) {
1276 err = view_init_hsplit(view, y);
1277 if (err)
1278 return err;
1279 }
1280
1281 view->focussed = 0;
1282 new_view->focussed = 1;
1283 new_view->mode = view->mode;
1284 new_view->nlines = request == TOG_VIEW_HELP ?
1285 view->lines : view->lines - y;
1286
1287 if (view_is_parent_view(view) && request != TOG_VIEW_HELP) {
1288 view_transfer_size(new_view, view);
1289 err = view_close_child(view);
1290 if (err)
1291 return err;
1292 err = view_set_child(view, new_view);
1293 if (err)
1294 return err;
1295 view->focus_child = 1;
1296 } else
1297 *requested = new_view;
1298
1299 return NULL;
1300 }
1301
1302 static void
1303 tog_resizeterm(void)
1304 {
1305 int cols, lines;
1306 struct winsize size;
1307
1308 if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &size) < 0) {
1309 cols = 80; /* Default */
1310 lines = 24;
1311 } else {
1312 cols = size.ws_col;
1313 lines = size.ws_row;
1314 }
1315 resize_term(lines, cols);
1316 }
1317
1318 static const struct got_error *
1319 view_search_start(struct tog_view *view, int fast_refresh)
1320 {
1321 const struct got_error *err = NULL;
1322 struct tog_view *v = view;
1323 char pattern[1024];
1324 int ret;
1325
1326 if (view->search_started) {
1327 regfree(&view->regex);
1328 view->searching = 0;
1329 memset(&view->regmatch, 0, sizeof(view->regmatch));
1330 }
1331 view->search_started = 0;
1332
1333 if (view->nlines < 1)
1334 return NULL;
1335
1336 if (view_is_hsplit_top(view))
1337 v = view->child;
1338 else if (view->mode == TOG_VIEW_SPLIT_VERT && view->parent)
1339 v = view->parent;
1340
1341 if (tog_io.input_str != NULL) {
1342 if (strlcpy(pattern, tog_io.input_str, sizeof(pattern)) >=
1343 sizeof(pattern))
1344 return got_error(GOT_ERR_NO_SPACE);
1345 } else {
1346 mvwaddstr(v->window, v->nlines - 1, 0, "/");
1347 wclrtoeol(v->window);
1348 nodelay(v->window, FALSE); /* block for search term input */
1349 nocbreak();
1350 echo();
1351 ret = wgetnstr(v->window, pattern, sizeof(pattern));
1352 wrefresh(v->window);
1353 cbreak();
1354 noecho();
1355 nodelay(v->window, TRUE);
1356 if (!fast_refresh && !using_mock_io)
1357 halfdelay(10);
1358 if (ret == ERR)
1359 return NULL;
1360 }
1361
1362 if (regcomp(&view->regex, pattern, REG_EXTENDED | REG_NEWLINE) == 0) {
1363 err = view->search_start(view);
1364 if (err) {
1365 regfree(&view->regex);
1366 return err;
1367 }
1368 view->search_started = 1;
1369 view->searching = TOG_SEARCH_FORWARD;
1370 view->search_next_done = 0;
1371 view->search_next(view);
1372 }
1373
1374 return NULL;
1375 }
1376
1377 /* Switch split mode. If view is a parent or child, draw the new splitscreen. */
1378 static const struct got_error *
1379 switch_split(struct tog_view *view)
1380 {
1381 const struct got_error *err = NULL;
1382 struct tog_view *v = NULL;
1383
1384 if (view->parent)
1385 v = view->parent;
1386 else
1387 v = view;
1388
1389 if (v->mode == TOG_VIEW_SPLIT_HRZN)
1390 v->mode = TOG_VIEW_SPLIT_VERT;
1391 else
1392 v->mode = TOG_VIEW_SPLIT_HRZN;
1393
1394 if (!v->child)
1395 return NULL;
1396 else if (v->mode == TOG_VIEW_SPLIT_VERT && v->cols < 120)
1397 v->mode = TOG_VIEW_SPLIT_NONE;
1398
1399 view_get_split(v, &v->child->begin_y, &v->child->begin_x);
1400 if (v->mode == TOG_VIEW_SPLIT_HRZN && v->child->resized_y)
1401 v->child->begin_y = v->child->resized_y;
1402 else if (v->mode == TOG_VIEW_SPLIT_VERT && v->child->resized_x)
1403 v->child->begin_x = v->child->resized_x;
1404
1405
1406 if (v->mode == TOG_VIEW_SPLIT_HRZN) {
1407 v->ncols = COLS;
1408 v->child->ncols = COLS;
1409 v->child->nscrolled = LINES - v->child->nlines;
1410
1411 err = view_init_hsplit(v, v->child->begin_y);
1412 if (err)
1413 return err;
1414 }
1415 v->child->mode = v->mode;
1416 v->child->nlines = v->lines - v->child->begin_y;
1417 v->focus_child = 1;
1418
1419 err = view_fullscreen(v);
1420 if (err)
1421 return err;
1422 err = view_splitscreen(v->child);
1423 if (err)
1424 return err;
1425
1426 if (v->mode == TOG_VIEW_SPLIT_NONE)
1427 v->mode = TOG_VIEW_SPLIT_VERT;
1428 if (v->mode == TOG_VIEW_SPLIT_HRZN) {
1429 err = offset_selection_down(v);
1430 if (err)
1431 return err;
1432 err = offset_selection_down(v->child);
1433 if (err)
1434 return err;
1435 } else {
1436 offset_selection_up(v);
1437 offset_selection_up(v->child);
1438 }
1439 if (v->resize)
1440 err = v->resize(v, 0);
1441 else if (v->child->resize)
1442 err = v->child->resize(v->child, 0);
1443
1444 return err;
1445 }
1446
1447 /*
1448 * Strip trailing whitespace from str starting at byte *n;
1449 * if *n < 0, use strlen(str). Return new str length in *n.
1450 */
1451 static void
1452 strip_trailing_ws(char *str, int *n)
1453 {
1454 size_t x = *n;
1455
1456 if (str == NULL || *str == '\0')
1457 return;
1458
1459 if (x < 0)
1460 x = strlen(str);
1461
1462 while (x-- > 0 && isspace((unsigned char)str[x]))
1463 str[x] = '\0';
1464
1465 *n = x + 1;
1466 }
1467
1468 /*
1469 * Extract visible substring of line y from the curses screen
1470 * and strip trailing whitespace. If vline is set, overwrite
1471 * line[vline] with '|' because the ACS_VLINE character is
1472 * written out as 'x'. Write the line to file f.
1473 */
1474 static const struct got_error *
1475 view_write_line(FILE *f, int y, int vline)
1476 {
1477 char line[COLS * MB_LEN_MAX]; /* allow for multibyte chars */
1478 int r, w;
1479
1480 r = mvwinnstr(curscr, y, 0, line, sizeof(line));
1481 if (r == ERR)
1482 return got_error_fmt(GOT_ERR_RANGE,
1483 "failed to extract line %d", y);
1484
1485 /*
1486 * In some views, lines are padded with blanks to COLS width.
1487 * Strip them so we can diff without the -b flag when testing.
1488 */
1489 strip_trailing_ws(line, &r);
1490
1491 if (vline > 0)
1492 line[vline] = '|';
1493
1494 w = fprintf(f, "%s\n", line);
1495 if (w != r + 1) /* \n */
1496 return got_ferror(f, GOT_ERR_IO);
1497
1498 return NULL;
1499 }
1500
1501 /*
1502 * Capture the visible curses screen by writing each line to the
1503 * file at the path set via the TOG_SCR_DUMP environment variable.
1504 */
1505 static const struct got_error *
1506 screendump(struct tog_view *view)
1507 {
1508 const struct got_error *err;
1509 int i;
1510
1511 err = got_opentemp_truncate(tog_io.sdump);
1512 if (err)
1513 return err;
1514
1515 if ((view->child && view->child->begin_x) ||
1516 (view->parent && view->begin_x)) {
1517 int ncols = view->child ? view->ncols : view->parent->ncols;
1518
1519 /* vertical splitscreen */
1520 for (i = 0; i < view->nlines; ++i) {
1521 err = view_write_line(tog_io.sdump, i, ncols - 1);
1522 if (err)
1523 goto done;
1524 }
1525 } else {
1526 int hline = 0;
1527
1528 /* fullscreen or horizontal splitscreen */
1529 if ((view->child && view->child->begin_y) ||
1530 (view->parent && view->begin_y)) /* hsplit */
1531 hline = view->child ?
1532 view->child->begin_y : view->begin_y;
1533
1534 for (i = 0; i < view->lines; i++) {
1535 if (hline && i == hline - 1) {
1536 int c;
1537
1538 /* ACS_HLINE writes out as 'q', overwrite it */
1539 for (c = 0; c < view->cols; ++c)
1540 fputc('-', tog_io.sdump);
1541 fputc('\n', tog_io.sdump);
1542 continue;
1543 }
1544
1545 err = view_write_line(tog_io.sdump, i, 0);
1546 if (err)
1547 goto done;
1548 }
1549 }
1550
1551 done:
1552 return err;
1553 }
1554
1555 /*
1556 * Compute view->count from numeric input. Assign total to view->count and
1557 * return first non-numeric key entered.
1558 */
1559 static int
1560 get_compound_key(struct tog_view *view, int c)
1561 {
1562 struct tog_view *v = view;
1563 int x, n = 0;
1564
1565 if (view_is_hsplit_top(view))
1566 v = view->child;
1567 else if (view->mode == TOG_VIEW_SPLIT_VERT && view->parent)
1568 v = view->parent;
1569
1570 view->count = 0;
1571 cbreak(); /* block for input */
1572 nodelay(view->window, FALSE);
1573 wmove(v->window, v->nlines - 1, 0);
1574 wclrtoeol(v->window);
1575 waddch(v->window, ':');
1576
1577 do {
1578 x = getcurx(v->window);
1579 if (x != ERR && x < view->ncols) {
1580 waddch(v->window, c);
1581 wrefresh(v->window);
1582 }
1583
1584 /*
1585 * Don't overflow. Max valid request should be the greatest
1586 * between the longest and total lines; cap at 10 million.
1587 */
1588 if (n >= 9999999)
1589 n = 9999999;
1590 else
1591 n = n * 10 + (c - '0');
1592 } while (((c = wgetch(view->window))) >= '0' && c <= '9' && c != ERR);
1593
1594 if (c == 'G' || c == 'g') { /* nG key map */
1595 view->gline = view->hiline = n;
1596 n = 0;
1597 c = 0;
1598 }
1599
1600 /* Massage excessive or inapplicable values at the input handler. */
1601 view->count = n;
1602
1603 return c;
1604 }
1605
1606 static void
1607 action_report(struct tog_view *view)
1608 {
1609 struct tog_view *v = view;
1610
1611 if (view_is_hsplit_top(view))
1612 v = view->child;
1613 else if (view->mode == TOG_VIEW_SPLIT_VERT && view->parent)
1614 v = view->parent;
1615
1616 wmove(v->window, v->nlines - 1, 0);
1617 wclrtoeol(v->window);
1618 wprintw(v->window, ":%s", view->action);
1619 wrefresh(v->window);
1620
1621 /*
1622 * Clear action status report. Only clear in blame view
1623 * once annotating is complete, otherwise it's too fast.
1624 */
1625 if (view->type == TOG_VIEW_BLAME) {
1626 if (view->state.blame.blame_complete)
1627 view->action = NULL;
1628 } else
1629 view->action = NULL;
1630 }
1631
1632 /*
1633 * Read the next line from the test script and assign
1634 * key instruction to *ch. If at EOF, set the *done flag.
1635 */
1636 static const struct got_error *
1637 tog_read_script_key(FILE *script, struct tog_view *view, int *ch, int *done)
1638 {
1639 const struct got_error *err = NULL;
1640 char *line = NULL;
1641 size_t linesz = 0;
1642 ssize_t n;
1643
1644
1645 if (view->count && --view->count) {
1646 *ch = view->ch;
1647 return NULL;
1648 } else
1649 *ch = -1;
1650
1651 if ((n = getline(&line, &linesz, script)) == -1) {
1652 if (feof(script)) {
1653 *done = 1;
1654 goto done;
1655 } else {
1656 err = got_ferror(script, GOT_ERR_IO);
1657 goto done;
1658 }
1659 }
1660
1661 if (strncasecmp(line, "WAIT_FOR_UI", 11) == 0)
1662 tog_io.wait_for_ui = 1;
1663 else if (strncasecmp(line, "KEY_ENTER", 9) == 0)
1664 *ch = KEY_ENTER;
1665 else if (strncasecmp(line, "KEY_RIGHT", 9) == 0)
1666 *ch = KEY_RIGHT;
1667 else if (strncasecmp(line, "KEY_LEFT", 8) == 0)
1668 *ch = KEY_LEFT;
1669 else if (strncasecmp(line, "KEY_DOWN", 8) == 0)
1670 *ch = KEY_DOWN;
1671 else if (strncasecmp(line, "KEY_UP", 6) == 0)
1672 *ch = KEY_UP;
1673 else if (strncasecmp(line, "TAB", 3) == 0)
1674 *ch = '\t';
1675 else if (strncasecmp(line, "SCREENDUMP", 10) == 0)
1676 *ch = TOG_KEY_SCRDUMP;
1677 else if (isdigit((unsigned char)*line)) {
1678 char *t = line;
1679
1680 while (isdigit((unsigned char)*t))
1681 ++t;
1682 view->ch = *ch = *t;
1683 *t = '\0';
1684 /* ignore error, view->count is 0 if instruction is invalid */
1685 view->count = strtonum(line, 0, INT_MAX, NULL);
1686 } else {
1687 *ch = *line;
1688 if (n > 2 && (*ch == '/' || *ch == '&')) {
1689 /* skip leading keymap and trim trailing newline */
1690 tog_io.input_str = strndup(line + 1, n - 2);
1691 if (tog_io.input_str == NULL) {
1692 err = got_error_from_errno("strndup");
1693 goto done;
1694 }
1695 }
1696 }
1697
1698 done:
1699 free(line);
1700 return err;
1701 }
1702
1703 static const struct got_error *
1704 view_input(struct tog_view **new, int *done, struct tog_view *view,
1705 struct tog_view_list_head *views, int fast_refresh)
1706 {
1707 const struct got_error *err = NULL;
1708 struct tog_view *v;
1709 int ch, errcode;
1710
1711 *new = NULL;
1712
1713 if (view->action)
1714 action_report(view);
1715
1716 /* Clear "no matches" indicator. */
1717 if (view->search_next_done == TOG_SEARCH_NO_MORE ||
1718 view->search_next_done == TOG_SEARCH_HAVE_NONE) {
1719 view->search_next_done = TOG_SEARCH_HAVE_MORE;
1720 view->count = 0;
1721 }
1722
1723 if (view->searching && !view->search_next_done) {
1724 errcode = pthread_mutex_unlock(&tog_mutex);
1725 if (errcode)
1726 return got_error_set_errno(errcode,
1727 "pthread_mutex_unlock");
1728 sched_yield();
1729 errcode = pthread_mutex_lock(&tog_mutex);
1730 if (errcode)
1731 return got_error_set_errno(errcode,
1732 "pthread_mutex_lock");
1733 view->search_next(view);
1734 return NULL;
1735 }
1736
1737 /* Allow threads to make progress while we are waiting for input. */
1738 errcode = pthread_mutex_unlock(&tog_mutex);
1739 if (errcode)
1740 return got_error_set_errno(errcode, "pthread_mutex_unlock");
1741
1742 if (using_mock_io) {
1743 err = tog_read_script_key(tog_io.f, view, &ch, done);
1744 if (err) {
1745 errcode = pthread_mutex_lock(&tog_mutex);
1746 return err;
1747 }
1748 } else if (view->count && --view->count) {
1749 cbreak();
1750 nodelay(view->window, TRUE);
1751 ch = wgetch(view->window);
1752 /* let C-g or backspace abort unfinished count */
1753 if (ch == CTRL('g') || ch == KEY_BACKSPACE)
1754 view->count = 0;
1755 else
1756 ch = view->ch;
1757 } else {
1758 ch = wgetch(view->window);
1759 if (ch >= '1' && ch <= '9')
1760 view->ch = ch = get_compound_key(view, ch);
1761 }
1762 if (view->hiline && ch != ERR && ch != 0)
1763 view->hiline = 0; /* key pressed, clear line highlight */
1764 nodelay(view->window, TRUE);
1765 errcode = pthread_mutex_lock(&tog_mutex);
1766 if (errcode)
1767 return got_error_set_errno(errcode, "pthread_mutex_lock");
1768
1769 if (tog_sigwinch_received || tog_sigcont_received) {
1770 tog_resizeterm();
1771 tog_sigwinch_received = 0;
1772 tog_sigcont_received = 0;
1773 TAILQ_FOREACH(v, views, entry) {
1774 err = view_resize(v);
1775 if (err)
1776 return err;
1777 err = v->input(new, v, KEY_RESIZE);
1778 if (err)
1779 return err;
1780 if (v->child) {
1781 err = view_resize(v->child);
1782 if (err)
1783 return err;
1784 err = v->child->input(new, v->child,
1785 KEY_RESIZE);
1786 if (err)
1787 return err;
1788 if (v->child->resized_x || v->child->resized_y) {
1789 err = view_resize_split(v, 0);
1790 if (err)
1791 return err;
1792 }
1793 }
1794 }
1795 }
1796
1797 switch (ch) {
1798 case '?':
1799 case 'H':
1800 case KEY_F(1):
1801 if (view->type == TOG_VIEW_HELP)
1802 err = view->reset(view);
1803 else
1804 err = view_request_new(new, view, TOG_VIEW_HELP);
1805 break;
1806 case '\t':
1807 view->count = 0;
1808 if (view->child) {
1809 view->focussed = 0;
1810 view->child->focussed = 1;
1811 view->focus_child = 1;
1812 } else if (view->parent) {
1813 view->focussed = 0;
1814 view->parent->focussed = 1;
1815 view->parent->focus_child = 0;
1816 if (!view_is_splitscreen(view)) {
1817 if (view->parent->resize) {
1818 err = view->parent->resize(view->parent,
1819 0);
1820 if (err)
1821 return err;
1822 }
1823 offset_selection_up(view->parent);
1824 err = view_fullscreen(view->parent);
1825 if (err)
1826 return err;
1827 }
1828 }
1829 break;
1830 case 'q':
1831 if (view->parent && view->mode == TOG_VIEW_SPLIT_HRZN) {
1832 if (view->parent->resize) {
1833 /* might need more commits to fill fullscreen */
1834 err = view->parent->resize(view->parent, 0);
1835 if (err)
1836 break;
1837 }
1838 offset_selection_up(view->parent);
1839 }
1840 err = view->input(new, view, ch);
1841 view->dying = 1;
1842 break;
1843 case 'Q':
1844 *done = 1;
1845 break;
1846 case 'F':
1847 view->count = 0;
1848 if (view_is_parent_view(view)) {
1849 if (view->child == NULL)
1850 break;
1851 if (view_is_splitscreen(view->child)) {
1852 view->focussed = 0;
1853 view->child->focussed = 1;
1854 err = view_fullscreen(view->child);
1855 } else {
1856 err = view_splitscreen(view->child);
1857 if (!err)
1858 err = view_resize_split(view, 0);
1859 }
1860 if (err)
1861 break;
1862 err = view->child->input(new, view->child,
1863 KEY_RESIZE);
1864 } else {
1865 if (view_is_splitscreen(view)) {
1866 view->parent->focussed = 0;
1867 view->focussed = 1;
1868 err = view_fullscreen(view);
1869 } else {
1870 err = view_splitscreen(view);
1871 if (!err && view->mode != TOG_VIEW_SPLIT_HRZN)
1872 err = view_resize(view->parent);
1873 if (!err)
1874 err = view_resize_split(view, 0);
1875 }
1876 if (err)
1877 break;
1878 err = view->input(new, view, KEY_RESIZE);
1879 }
1880 if (err)
1881 break;
1882 if (view->resize) {
1883 err = view->resize(view, 0);
1884 if (err)
1885 break;
1886 }
1887 if (view->parent) {
1888 if (view->parent->resize) {
1889 err = view->parent->resize(view->parent, 0);
1890 if (err != NULL)
1891 break;
1892 }
1893 err = offset_selection_down(view->parent);
1894 if (err != NULL)
1895 break;
1896 }
1897 err = offset_selection_down(view);
1898 break;
1899 case 'S':
1900 view->count = 0;
1901 err = switch_split(view);
1902 break;
1903 case '-':
1904 err = view_resize_split(view, -1);
1905 break;
1906 case '+':
1907 err = view_resize_split(view, 1);
1908 break;
1909 case KEY_RESIZE:
1910 break;
1911 case '/':
1912 view->count = 0;
1913 if (view->search_start)
1914 view_search_start(view, fast_refresh);
1915 else
1916 err = view->input(new, view, ch);
1917 break;
1918 case 'N':
1919 case 'n':
1920 if (view->search_started && view->search_next) {
1921 view->searching = (ch == 'n' ?
1922 TOG_SEARCH_FORWARD : TOG_SEARCH_BACKWARD);
1923 view->search_next_done = 0;
1924 view->search_next(view);
1925 } else
1926 err = view->input(new, view, ch);
1927 break;
1928 case 'A':
1929 if (tog_diff_algo == GOT_DIFF_ALGORITHM_MYERS) {
1930 tog_diff_algo = GOT_DIFF_ALGORITHM_PATIENCE;
1931 view->action = "Patience diff algorithm";
1932 } else {
1933 tog_diff_algo = GOT_DIFF_ALGORITHM_MYERS;
1934 view->action = "Myers diff algorithm";
1935 }
1936 TAILQ_FOREACH(v, views, entry) {
1937 if (v->reset) {
1938 err = v->reset(v);
1939 if (err)
1940 return err;
1941 }
1942 if (v->child && v->child->reset) {
1943 err = v->child->reset(v->child);
1944 if (err)
1945 return err;
1946 }
1947 }
1948 break;
1949 case TOG_KEY_SCRDUMP:
1950 err = screendump(view);
1951 break;
1952 default:
1953 err = view->input(new, view, ch);
1954 break;
1955 }
1956
1957 return err;
1958 }
1959
1960 static int
1961 view_needs_focus_indication(struct tog_view *view)
1962 {
1963 if (view_is_parent_view(view)) {
1964 if (view->child == NULL || view->child->focussed)
1965 return 0;
1966 if (!view_is_splitscreen(view->child))
1967 return 0;
1968 } else if (!view_is_splitscreen(view))
1969 return 0;
1970
1971 return view->focussed;
1972 }
1973
1974 static const struct got_error *
1975 tog_io_close(void)
1976 {
1977 const struct got_error *err = NULL;
1978
1979 if (tog_io.cin && fclose(tog_io.cin) == EOF)
1980 err = got_ferror(tog_io.cin, GOT_ERR_IO);
1981 if (tog_io.cout && fclose(tog_io.cout) == EOF && err == NULL)
1982 err = got_ferror(tog_io.cout, GOT_ERR_IO);
1983 if (tog_io.f && fclose(tog_io.f) == EOF && err == NULL)
1984 err = got_ferror(tog_io.f, GOT_ERR_IO);
1985 if (tog_io.sdump && fclose(tog_io.sdump) == EOF && err == NULL)
1986 err = got_ferror(tog_io.sdump, GOT_ERR_IO);
1987 if (tog_io.input_str != NULL)
1988 free(tog_io.input_str);
1989
1990 return err;
1991 }
1992
1993 static const struct got_error *
1994 view_loop(struct tog_view *view)
1995 {
1996 const struct got_error *err = NULL;
1997 struct tog_view_list_head views;
1998 struct tog_view *new_view;
1999 char *mode;
2000 int fast_refresh = 10;
2001 int done = 0, errcode;
2002
2003 mode = getenv("TOG_VIEW_SPLIT_MODE");
2004 if (!mode || !(*mode == 'h' || *mode == 'H'))
2005 view->mode = TOG_VIEW_SPLIT_VERT;
2006 else
2007 view->mode = TOG_VIEW_SPLIT_HRZN;
2008
2009 errcode = pthread_mutex_lock(&tog_mutex);
2010 if (errcode)
2011 return got_error_set_errno(errcode, "pthread_mutex_lock");
2012
2013 TAILQ_INIT(&views);
2014 TAILQ_INSERT_HEAD(&views, view, entry);
2015
2016 view->focussed = 1;
2017 err = view->show(view);
2018 if (err)
2019 return err;
2020 update_panels();
2021 doupdate();
2022 while (!TAILQ_EMPTY(&views) && !done && !tog_thread_error &&
2023 !tog_fatal_signal_received()) {
2024 /* Refresh fast during initialization, then become slower. */
2025 if (fast_refresh && --fast_refresh == 0 && !using_mock_io)
2026 halfdelay(10); /* switch to once per second */
2027
2028 err = view_input(&new_view, &done, view, &views, fast_refresh);
2029 if (err)
2030 break;
2031
2032 if (view->dying && view == TAILQ_FIRST(&views) &&
2033 TAILQ_NEXT(view, entry) == NULL)
2034 done = 1;
2035 if (done) {
2036 struct tog_view *v;
2037
2038 /*
2039 * When we quit, scroll the screen up a single line
2040 * so we don't lose any information.
2041 */
2042 TAILQ_FOREACH(v, &views, entry) {
2043 wmove(v->window, 0, 0);
2044 wdeleteln(v->window);
2045 wnoutrefresh(v->window);
2046 if (v->child && !view_is_fullscreen(v)) {
2047 wmove(v->child->window, 0, 0);
2048 wdeleteln(v->child->window);
2049 wnoutrefresh(v->child->window);
2050 }
2051 }
2052 doupdate();
2053 }
2054
2055 if (view->dying) {
2056 struct tog_view *v, *prev = NULL;
2057
2058 if (view_is_parent_view(view))
2059 prev = TAILQ_PREV(view, tog_view_list_head,
2060 entry);
2061 else if (view->parent)
2062 prev = view->parent;
2063
2064 if (view->parent) {
2065 view->parent->child = NULL;
2066 view->parent->focus_child = 0;
2067 /* Restore fullscreen line height. */
2068 view->parent->nlines = view->parent->lines;
2069 err = view_resize(view->parent);
2070 if (err)
2071 break;
2072 /* Make resized splits persist. */
2073 view_transfer_size(view->parent, view);
2074 } else
2075 TAILQ_REMOVE(&views, view, entry);
2076
2077 err = view_close(view);
2078 if (err)
2079 goto done;
2080
2081 view = NULL;
2082 TAILQ_FOREACH(v, &views, entry) {
2083 if (v->focussed)
2084 break;
2085 }
2086 if (view == NULL && new_view == NULL) {
2087 /* No view has focus. Try to pick one. */
2088 if (prev)
2089 view = prev;
2090 else if (!TAILQ_EMPTY(&views)) {
2091 view = TAILQ_LAST(&views,
2092 tog_view_list_head);
2093 }
2094 if (view) {
2095 if (view->focus_child) {
2096 view->child->focussed = 1;
2097 view = view->child;
2098 } else
2099 view->focussed = 1;
2100 }
2101 }
2102 }
2103 if (new_view) {
2104 struct tog_view *v, *t;
2105 /* Only allow one parent view per type. */
2106 TAILQ_FOREACH_SAFE(v, &views, entry, t) {
2107 if (v->type != new_view->type)
2108 continue;
2109 TAILQ_REMOVE(&views, v, entry);
2110 err = view_close(v);
2111 if (err)
2112 goto done;
2113 break;
2114 }
2115 TAILQ_INSERT_TAIL(&views, new_view, entry);
2116 view = new_view;
2117 }
2118 if (view && !done) {
2119 if (view_is_parent_view(view)) {
2120 if (view->child && view->child->focussed)
2121 view = view->child;
2122 } else {
2123 if (view->parent && view->parent->focussed)
2124 view = view->parent;
2125 }
2126 show_panel(view->panel);
2127 if (view->child && view_is_splitscreen(view->child))
2128 show_panel(view->child->panel);
2129 if (view->parent && view_is_splitscreen(view)) {
2130 err = view->parent->show(view->parent);
2131 if (err)
2132 goto done;
2133 }
2134 err = view->show(view);
2135 if (err)
2136 goto done;
2137 if (view->child) {
2138 err = view->child->show(view->child);
2139 if (err)
2140 goto done;
2141 }
2142 update_panels();
2143 doupdate();
2144 }
2145 }
2146 done:
2147 while (!TAILQ_EMPTY(&views)) {
2148 const struct got_error *close_err;
2149 view = TAILQ_FIRST(&views);
2150 TAILQ_REMOVE(&views, view, entry);
2151 close_err = view_close(view);
2152 if (close_err && err == NULL)
2153 err = close_err;
2154 }
2155
2156 errcode = pthread_mutex_unlock(&tog_mutex);
2157 if (errcode && err == NULL)
2158 err = got_error_set_errno(errcode, "pthread_mutex_unlock");
2159
2160 return err;
2161 }
2162
2163 __dead static void
2164 usage_log(void)
2165 {
2166 endwin();
2167 fprintf(stderr,
2168 "usage: %s log [-b] [-c commit] [-r repository-path] [path]\n",
2169 getprogname());
2170 exit(1);
2171 }
2172
2173 /* Create newly allocated wide-character string equivalent to a byte string. */
2174 static const struct got_error *
2175 mbs2ws(wchar_t **ws, size_t *wlen, const char *s)
2176 {
2177 char *vis = NULL;
2178 const struct got_error *err = NULL;
2179
2180 *ws = NULL;
2181 *wlen = mbstowcs(NULL, s, 0);
2182 if (*wlen == (size_t)-1) {
2183 int vislen;
2184 if (errno != EILSEQ)
2185 return got_error_from_errno("mbstowcs");
2186
2187 /* byte string invalid in current encoding; try to "fix" it */
2188 err = got_mbsavis(&vis, &vislen, s);
2189 if (err)
2190 return err;
2191 *wlen = mbstowcs(NULL, vis, 0);
2192 if (*wlen == (size_t)-1) {
2193 err = got_error_from_errno("mbstowcs"); /* give up */
2194 goto done;
2195 }
2196 }
2197
2198 *ws = calloc(*wlen + 1, sizeof(**ws));
2199 if (*ws == NULL) {
2200 err = got_error_from_errno("calloc");
2201 goto done;
2202 }
2203
2204 if (mbstowcs(*ws, vis ? vis : s, *wlen) != *wlen)
2205 err = got_error_from_errno("mbstowcs");
2206 done:
2207 free(vis);
2208 if (err) {
2209 free(*ws);
2210 *ws = NULL;
2211 *wlen = 0;
2212 }
2213 return err;
2214 }
2215
2216 static const struct got_error *
2217 expand_tab(char **ptr, const char *src)
2218 {
2219 char *dst;
2220 size_t len, n, idx = 0, sz = 0;
2221
2222 *ptr = NULL;
2223 n = len = strlen(src);
2224 dst = malloc(n + 1);
2225 if (dst == NULL)
2226 return got_error_from_errno("malloc");
2227
2228 while (idx < len && src[idx]) {
2229 const char c = src[idx];
2230
2231 if (c == '\t') {
2232 size_t nb = TABSIZE - sz % TABSIZE;
2233 char *p;
2234
2235 p = realloc(dst, n + nb);
2236 if (p == NULL) {
2237 free(dst);
2238 return got_error_from_errno("realloc");
2239
2240 }
2241 dst = p;
2242 n += nb;
2243 memset(dst + sz, ' ', nb);
2244 sz += nb;
2245 } else
2246 dst[sz++] = src[idx];
2247 ++idx;
2248 }
2249
2250 dst[sz] = '\0';
2251 *ptr = dst;
2252 return NULL;
2253 }
2254
2255 /*
2256 * Advance at most n columns from wline starting at offset off.
2257 * Return the index to the first character after the span operation.
2258 * Return the combined column width of all spanned wide characters in
2259 * *rcol.
2260 */
2261 static int
2262 span_wline(int *rcol, int off, wchar_t *wline, int n, int col_tab_align)
2263 {
2264 int width, i, cols = 0;
2265
2266 if (n == 0) {
2267 *rcol = cols;
2268 return off;
2269 }
2270
2271 for (i = off; wline[i] != L'\0'; ++i) {
2272 if (wline[i] == L'\t')
2273 width = TABSIZE - ((cols + col_tab_align) % TABSIZE);
2274 else
2275 width = wcwidth(wline[i]);
2276
2277 if (width == -1) {
2278 width = 1;
2279 wline[i] = L'.';
2280 }
2281
2282 if (cols + width > n)
2283 break;
2284 cols += width;
2285 }
2286
2287 *rcol = cols;
2288 return i;
2289 }
2290
2291 /*
2292 * Format a line for display, ensuring that it won't overflow a width limit.
2293 * With scrolling, the width returned refers to the scrolled version of the
2294 * line, which starts at (*wlinep)[*scrollxp]. The caller must free *wlinep.
2295 */
2296 static const struct got_error *
2297 format_line(wchar_t **wlinep, int *widthp, int *scrollxp,
2298 const char *line, int nscroll, int wlimit, int col_tab_align, int expand)
2299 {
2300 const struct got_error *err = NULL;
2301 int cols;
2302 wchar_t *wline = NULL;
2303 char *exstr = NULL;
2304 size_t wlen;
2305 int i, scrollx;
2306
2307 *wlinep = NULL;
2308 *widthp = 0;
2309
2310 if (expand) {
2311 err = expand_tab(&exstr, line);
2312 if (err)
2313 return err;
2314 }
2315
2316 err = mbs2ws(&wline, &wlen, expand ? exstr : line);
2317 free(exstr);
2318 if (err)
2319 return err;
2320
2321 scrollx = span_wline(&cols, 0, wline, nscroll, col_tab_align);
2322
2323 if (wlen > 0 && wline[wlen - 1] == L'\n') {
2324 wline[wlen - 1] = L'\0';
2325 wlen--;
2326 }
2327 if (wlen > 0 && wline[wlen - 1] == L'\r') {
2328 wline[wlen - 1] = L'\0';
2329 wlen--;
2330 }
2331
2332 i = span_wline(&cols, scrollx, wline, wlimit, col_tab_align);
2333 wline[i] = L'\0';
2334
2335 if (widthp)
2336 *widthp = cols;
2337 if (scrollxp)
2338 *scrollxp = scrollx;
2339 if (err)
2340 free(wline);
2341 else
2342 *wlinep = wline;
2343 return err;
2344 }
2345
2346 static const struct got_error*
2347 build_refs_str(char **refs_str, struct got_reflist_head *refs,
2348 struct got_object_id *id, struct got_repository *repo)
2349 {
2350 static const struct got_error *err = NULL;
2351 struct got_reflist_entry *re;
2352 char *s;
2353 const char *name;
2354
2355 *refs_str = NULL;
2356
2357 if (refs == NULL)
2358 return NULL;
2359
2360 TAILQ_FOREACH(re, refs, entry) {
2361 struct got_tag_object *tag = NULL;
2362 struct got_object_id *ref_id;
2363 int cmp;
2364
2365 name = got_ref_get_name(re->ref);
2366 if (strcmp(name, GOT_REF_HEAD) == 0)
2367 continue;
2368 if (strncmp(name, "refs/", 5) == 0)
2369 name += 5;
2370 if (strncmp(name, "got/", 4) == 0)
2371 continue;
2372 if (strncmp(name, "heads/", 6) == 0)
2373 name += 6;
2374 if (strncmp(name, "remotes/", 8) == 0) {
2375 name += 8;
2376 s = strstr(name, "/" GOT_REF_HEAD);
2377 if (s != NULL && strcmp(s, "/" GOT_REF_HEAD) == 0)
2378 continue;
2379 }
2380 err = got_ref_resolve(&ref_id, repo, re->ref);
2381 if (err)
2382 break;
2383 if (strncmp(name, "tags/", 5) == 0) {
2384 err = got_object_open_as_tag(&tag, repo, ref_id);
2385 if (err) {
2386 if (err->code != GOT_ERR_OBJ_TYPE) {
2387 free(ref_id);
2388 break;
2389 }
2390 /* Ref points at something other than a tag. */
2391 err = NULL;
2392 tag = NULL;
2393 }
2394 }
2395 cmp = got_object_id_cmp(tag ?
2396 got_object_tag_get_object_id(tag) : ref_id, id);
2397 free(ref_id);
2398 if (tag)
2399 got_object_tag_close(tag);
2400 if (cmp != 0)
2401 continue;
2402 s = *refs_str;
2403 if (asprintf(refs_str, "%s%s%s", s ? s : "",
2404 s ? ", " : "", name) == -1) {
2405 err = got_error_from_errno("asprintf");
2406 free(s);
2407 *refs_str = NULL;
2408 break;
2409 }
2410 free(s);
2411 }
2412
2413 return err;
2414 }
2415
2416 static const struct got_error *
2417 format_author(wchar_t **wauthor, int *author_width, char *author, int limit,
2418 int col_tab_align)
2419 {
2420 char *smallerthan;
2421
2422 smallerthan = strchr(author, '<');
2423 if (smallerthan && smallerthan[1] != '\0')
2424 author = smallerthan + 1;
2425 author[strcspn(author, "@>")] = '\0';
2426 return format_line(wauthor, author_width, NULL, author, 0, limit,
2427 col_tab_align, 0);
2428 }
2429
2430 static const struct got_error *
2431 draw_commit(struct tog_view *view, struct commit_queue_entry *entry,
2432 const size_t date_display_cols, int author_display_cols)
2433 {
2434 struct tog_log_view_state *s = &view->state.log;
2435 const struct got_error *err = NULL;
2436 struct got_commit_object *commit = entry->commit;
2437 struct got_object_id *id = entry->id;
2438 char datebuf[12]; /* YYYY-MM-DD + SPACE + NUL */
2439 char *refs_str = NULL;
2440 char *logmsg0 = NULL, *logmsg = NULL;
2441 char *author = NULL;
2442 wchar_t *wrefstr = NULL, *wlogmsg = NULL, *wauthor = NULL;
2443 int author_width, refstr_width, logmsg_width;
2444 char *newline, *line = NULL;
2445 int col, limit, scrollx, logmsg_x;
2446 const int avail = view->ncols, marker_column = author_display_cols + 1;
2447 struct tm tm;
2448 time_t committer_time;
2449 struct tog_color *tc;
2450 struct got_reflist_head *refs;
2451
2452 if (tog_base_commit.id != NULL && tog_base_commit.idx == -1 &&
2453 got_object_id_cmp(id, tog_base_commit.id) == 0)
2454 tog_base_commit.idx = entry->idx;
2455 if (tog_io.wait_for_ui && s->thread_args.need_commit_marker) {
2456 int rc;
2457
2458 rc = pthread_cond_wait(&s->thread_args.log_loaded, &tog_mutex);
2459 if (rc)
2460 return got_error_set_errno(rc, "pthread_cond_wait");
2461 }
2462
2463 committer_time = got_object_commit_get_committer_time(commit);
2464 if (gmtime_r(&committer_time, &tm) == NULL)
2465 return got_error_from_errno("gmtime_r");
2466 if (strftime(datebuf, sizeof(datebuf), "%G-%m-%d ", &tm) == 0)
2467 return got_error(GOT_ERR_NO_SPACE);
2468
2469 if (avail <= date_display_cols)
2470 limit = MIN(sizeof(datebuf) - 1, avail);
2471 else
2472 limit = MIN(date_display_cols, sizeof(datebuf) - 1);
2473 tc = get_color(&s->colors, TOG_COLOR_DATE);
2474 if (tc)
2475 wattr_on(view->window,
2476 COLOR_PAIR(tc->colorpair), NULL);
2477 waddnstr(view->window, datebuf, limit);
2478 if (tc)
2479 wattr_off(view->window,
2480 COLOR_PAIR(tc->colorpair), NULL);
2481 col = limit;
2482 if (col > avail)
2483 goto done;
2484
2485 if (avail >= 120) {
2486 char *id_str;
2487 err = got_object_id_str(&id_str, id);
2488 if (err)
2489 goto done;
2490 tc = get_color(&s->colors, TOG_COLOR_COMMIT);
2491 if (tc)
2492 wattr_on(view->window,
2493 COLOR_PAIR(tc->colorpair), NULL);
2494 wprintw(view->window, "%.8s ", id_str);
2495 if (tc)
2496 wattr_off(view->window,
2497 COLOR_PAIR(tc->colorpair), NULL);
2498 free(id_str);
2499 col += 9;
2500 if (col > avail)
2501 goto done;
2502 }
2503
2504 if (s->use_committer)
2505 author = strdup(got_object_commit_get_committer(commit));
2506 else
2507 author = strdup(got_object_commit_get_author(commit));
2508 if (author == NULL) {
2509 err = got_error_from_errno("strdup");
2510 goto done;
2511 }
2512 err = format_author(&wauthor, &author_width, author, avail - col, col);
2513 if (err)
2514 goto done;
2515 tc = get_color(&s->colors, TOG_COLOR_AUTHOR);
2516 if (tc)
2517 wattr_on(view->window,
2518 COLOR_PAIR(tc->colorpair), NULL);
2519 waddwstr(view->window, wauthor);
2520 col += author_width;
2521 while (col < avail && author_width < author_display_cols + 2) {
2522 if (tog_base_commit.marker != GOT_WORKTREE_STATE_UNKNOWN &&
2523 author_width == marker_column &&
2524 entry->idx == tog_base_commit.idx && !s->limit_view) {
2525 tc = get_color(&s->colors, TOG_COLOR_COMMIT);
2526 if (tc)
2527 wattr_on(view->window,
2528 COLOR_PAIR(tc->colorpair), NULL);
2529 waddch(view->window, tog_base_commit.marker);
2530 if (tc)
2531 wattr_off(view->window,
2532 COLOR_PAIR(tc->colorpair), NULL);
2533 } else
2534 waddch(view->window, ' ');
2535 col++;
2536 author_width++;
2537 }
2538 if (tc)
2539 wattr_off(view->window,
2540 COLOR_PAIR(tc->colorpair), NULL);
2541 if (col > avail)
2542 goto done;
2543
2544 err = got_object_commit_get_logmsg(&logmsg0, commit);
2545 if (err)
2546 goto done;
2547 logmsg = logmsg0;
2548 while (*logmsg == '\n')
2549 logmsg++;
2550 newline = strchr(logmsg, '\n');
2551 if (newline)
2552 *newline = '\0';
2553
2554 limit = avail - col;
2555 if (view->child && !view_is_hsplit_top(view) && limit > 0)
2556 limit--; /* for the border */
2557
2558 /* Prepend reference labels to log message if possible .*/
2559 refs = got_reflist_object_id_map_lookup(tog_refs_idmap, id);
2560 err = build_refs_str(&refs_str, refs, id, s->repo);
2561 if (err)
2562 goto done;
2563 if (refs_str) {
2564 char *rs;
2565
2566 if (asprintf(&rs, "[%s]", refs_str) == -1) {
2567 err = got_error_from_errno("asprintf");
2568 goto done;
2569 }
2570 err = format_line(&wrefstr, &refstr_width,
2571 &scrollx, rs, view->x, limit, col, 1);
2572 free(rs);
2573 if (err)
2574 goto done;
2575 tc = get_color(&s->colors, TOG_COLOR_COMMIT);
2576 if (tc)
2577 wattr_on(view->window,
2578 COLOR_PAIR(tc->colorpair), NULL);
2579 waddwstr(view->window, &wrefstr[scrollx]);
2580 if (tc)
2581 wattr_off(view->window,
2582 COLOR_PAIR(tc->colorpair), NULL);
2583 col += MAX(refstr_width, 0);
2584 if (col > avail)
2585 goto done;
2586
2587 if (col < avail) {
2588 waddch(view->window, ' ');
2589 col++;
2590 }
2591
2592 if (refstr_width > 0)
2593 logmsg_x = 0;
2594 else {
2595 int unscrolled_refstr_width;
2596 size_t len = wcslen(wrefstr);
2597
2598 /*
2599 * No need to check for -1 return value here since
2600 * unprintables have been replaced by span_wline().
2601 */
2602 unscrolled_refstr_width = wcswidth(wrefstr, len);
2603 unscrolled_refstr_width += 1; /* trailing space */
2604 logmsg_x = view->x - unscrolled_refstr_width;
2605 }
2606
2607 limit = avail - col;
2608 if (view->child && !view_is_hsplit_top(view) && limit > 0)
2609 limit--; /* for the border */
2610 } else
2611 logmsg_x = view->x;
2612
2613 err = format_line(&wlogmsg, &logmsg_width, &scrollx, logmsg, logmsg_x,
2614 limit, col, 1);
2615 if (err)
2616 goto done;
2617 waddwstr(view->window, &wlogmsg[scrollx]);
2618 col += MAX(logmsg_width, 0);
2619 while (col < avail) {
2620 waddch(view->window, ' ');
2621 col++;
2622 }
2623 done:
2624 free(logmsg0);
2625 free(wlogmsg);
2626 free(wrefstr);
2627 free(refs_str);
2628 free(author);
2629 free(wauthor);
2630 free(line);
2631 return err;
2632 }
2633
2634 static struct commit_queue_entry *
2635 alloc_commit_queue_entry(struct got_commit_object *commit,
2636 struct got_object_id *id)
2637 {
2638 struct commit_queue_entry *entry;
2639 struct got_object_id *dup;
2640
2641 entry = calloc(1, sizeof(*entry));
2642 if (entry == NULL)
2643 return NULL;
2644
2645 dup = got_object_id_dup(id);
2646 if (dup == NULL) {
2647 free(entry);
2648 return NULL;
2649 }
2650
2651 entry->id = dup;
2652 entry->commit = commit;
2653 return entry;
2654 }
2655
2656 static void
2657 pop_commit(struct commit_queue *commits)
2658 {
2659 struct commit_queue_entry *entry;
2660
2661 entry = TAILQ_FIRST(&commits->head);
2662 TAILQ_REMOVE(&commits->head, entry, entry);
2663 got_object_commit_close(entry->commit);
2664 commits->ncommits--;
2665 free(entry->id);
2666 free(entry);
2667 }
2668
2669 static void
2670 free_commits(struct commit_queue *commits)
2671 {
2672 while (!TAILQ_EMPTY(&commits->head))
2673 pop_commit(commits);
2674 }
2675
2676 static const struct got_error *
2677 match_commit(int *have_match, struct got_object_id *id,
2678 struct got_commit_object *commit, regex_t *regex)
2679 {
2680 const struct got_error *err = NULL;
2681 regmatch_t regmatch;
2682 char *id_str = NULL, *logmsg = NULL;
2683
2684 *have_match = 0;
2685
2686 err = got_object_id_str(&id_str, id);
2687 if (err)
2688 return err;
2689
2690 err = got_object_commit_get_logmsg(&logmsg, commit);
2691 if (err)
2692 goto done;
2693
2694 if (regexec(regex, got_object_commit_get_author(commit), 1,
2695 &regmatch, 0) == 0 ||
2696 regexec(regex, got_object_commit_get_committer(commit), 1,
2697 &regmatch, 0) == 0 ||
2698 regexec(regex, id_str, 1, &regmatch, 0) == 0 ||
2699 regexec(regex, logmsg, 1, &regmatch, 0) == 0)
2700 *have_match = 1;
2701 done:
2702 free(id_str);
2703 free(logmsg);
2704 return err;
2705 }
2706
2707 static const struct got_error *
2708 queue_commits(struct tog_log_thread_args *a)
2709 {
2710 const struct got_error *err = NULL;
2711
2712 /*
2713 * We keep all commits open throughout the lifetime of the log
2714 * view in order to avoid having to re-fetch commits from disk
2715 * while updating the display.
2716 */
2717 do {
2718 struct got_object_id id;
2719 struct got_commit_object *commit;
2720 struct commit_queue_entry *entry;
2721 int limit_match = 0;
2722 int errcode;
2723
2724 err = got_commit_graph_iter_next(&id, a->graph, a->repo,
2725 NULL, NULL);
2726 if (err)
2727 break;
2728
2729 err = got_object_open_as_commit(&commit, a->repo, &id);
2730 if (err)
2731 break;
2732 entry = alloc_commit_queue_entry(commit, &id);
2733 if (entry == NULL) {
2734 err = got_error_from_errno("alloc_commit_queue_entry");
2735 break;
2736 }
2737
2738 errcode = pthread_mutex_lock(&tog_mutex);
2739 if (errcode) {
2740 err = got_error_set_errno(errcode,
2741 "pthread_mutex_lock");
2742 break;
2743 }
2744
2745 entry->idx = a->real_commits->ncommits;
2746 TAILQ_INSERT_TAIL(&a->real_commits->head, entry, entry);
2747 a->real_commits->ncommits++;
2748
2749 if (*a->limiting) {
2750 err = match_commit(&limit_match, &id, commit,
2751 a->limit_regex);
2752 if (err)
2753 break;
2754
2755 if (limit_match) {
2756 struct commit_queue_entry *matched;
2757
2758 matched = alloc_commit_queue_entry(
2759 entry->commit, entry->id);
2760 if (matched == NULL) {
2761 err = got_error_from_errno(
2762 "alloc_commit_queue_entry");
2763 break;
2764 }
2765 matched->commit = entry->commit;
2766 got_object_commit_retain(entry->commit);
2767
2768 matched->idx = a->limit_commits->ncommits;
2769 TAILQ_INSERT_TAIL(&a->limit_commits->head,
2770 matched, entry);
2771 a->limit_commits->ncommits++;
2772 }
2773
2774 /*
2775 * This is how we signal log_thread() that we
2776 * have found a match, and that it should be
2777 * counted as a new entry for the view.
2778 */
2779 a->limit_match = limit_match;
2780 }
2781
2782 if (*a->searching == TOG_SEARCH_FORWARD &&
2783 !*a->search_next_done) {
2784 int have_match;
2785 err = match_commit(&have_match, &id, commit, a->regex);
2786 if (err)
2787 break;
2788
2789 if (*a->limiting) {
2790 if (limit_match && have_match)
2791 *a->search_next_done =
2792 TOG_SEARCH_HAVE_MORE;
2793 } else if (have_match)
2794 *a->search_next_done = TOG_SEARCH_HAVE_MORE;
2795 }
2796
2797 errcode = pthread_mutex_unlock(&tog_mutex);
2798 if (errcode && err == NULL)
2799 err = got_error_set_errno(errcode,
2800 "pthread_mutex_unlock");
2801 if (err)
2802 break;
2803 } while (*a->searching == TOG_SEARCH_FORWARD && !*a->search_next_done);
2804
2805 return err;
2806 }
2807
2808 static void
2809 select_commit(struct tog_log_view_state *s)
2810 {
2811 struct commit_queue_entry *entry;
2812 int ncommits = 0;
2813
2814 entry = s->first_displayed_entry;
2815 while (entry) {
2816 if (ncommits == s->selected) {
2817 s->selected_entry = entry;
2818 break;
2819 }
2820 entry = TAILQ_NEXT(entry, entry);
2821 ncommits++;
2822 }
2823 }
2824
2825 static const struct got_error *
2826 draw_commits(struct tog_view *view)
2827 {
2828 const struct got_error *err = NULL;
2829 struct tog_log_view_state *s = &view->state.log;
2830 struct commit_queue_entry *entry = s->selected_entry;
2831 int limit = view->nlines;
2832 int width;
2833 int ncommits, author_cols = 4, refstr_cols;
2834 char *id_str = NULL, *header = NULL, *ncommits_str = NULL;
2835 char *refs_str = NULL;
2836 wchar_t *wline;
2837 struct tog_color *tc;
2838 static const size_t date_display_cols = 12;
2839 struct got_reflist_head *refs;
2840
2841 if (view_is_hsplit_top(view))
2842 --limit; /* account for border */
2843
2844 if (s->selected_entry &&
2845 !(view->searching && view->search_next_done == 0)) {
2846 err = got_object_id_str(&id_str, s->selected_entry->id);
2847 if (err)
2848 return err;
2849 refs = got_reflist_object_id_map_lookup(tog_refs_idmap,
2850 s->selected_entry->id);
2851 err = build_refs_str(&refs_str, refs, s->selected_entry->id,
2852 s->repo);
2853 if (err)
2854 goto done;
2855 }
2856
2857 if (s->thread_args.commits_needed == 0 && !using_mock_io)
2858 halfdelay(10); /* disable fast refresh */
2859
2860 if (s->thread_args.commits_needed > 0 || s->thread_args.load_all) {
2861 if (asprintf(&ncommits_str, " [%d/%d] %s",
2862 entry ? entry->idx + 1 : 0, s->commits->ncommits,
2863 (view->searching && !view->search_next_done) ?
2864 "searching..." : "loading...") == -1) {
2865 err = got_error_from_errno("asprintf");
2866 goto done;
2867 }
2868 } else {
2869 const char *search_str = NULL;
2870 const char *limit_str = NULL;
2871
2872 if (view->searching) {
2873 if (view->search_next_done == TOG_SEARCH_NO_MORE)
2874 search_str = "no more matches";
2875 else if (view->search_next_done == TOG_SEARCH_HAVE_NONE)
2876 search_str = "no matches found";
2877 else if (!view->search_next_done)
2878 search_str = "searching...";
2879 }
2880
2881 if (s->limit_view && s->commits->ncommits == 0)
2882 limit_str = "no matches found";
2883
2884 if (asprintf(&ncommits_str, " [%d/%d] %s %s",
2885 entry ? entry->idx + 1 : 0, s->commits->ncommits,
2886 search_str ? search_str : (refs_str ? refs_str : ""),
2887 limit_str ? limit_str : "") == -1) {
2888 err = got_error_from_errno("asprintf");
2889 goto done;
2890 }
2891 }
2892
2893 free(refs_str);
2894 refs_str = NULL;
2895
2896 if (s->in_repo_path && strcmp(s->in_repo_path, "/") != 0) {
2897 if (asprintf(&header, "commit %s %s%s", id_str ? id_str :
2898 "........................................",
2899 s->in_repo_path, ncommits_str) == -1) {
2900 err = got_error_from_errno("asprintf");
2901 header = NULL;
2902 goto done;
2903 }
2904 } else if (asprintf(&header, "commit %s%s",
2905 id_str ? id_str : "........................................",
2906 ncommits_str) == -1) {
2907 err = got_error_from_errno("asprintf");
2908 header = NULL;
2909 goto done;
2910 }
2911 err = format_line(&wline, &width, NULL, header, 0, view->ncols, 0, 0);
2912 if (err)
2913 goto done;
2914
2915 werase(view->window);
2916
2917 if (view_needs_focus_indication(view))
2918 wstandout(view->window);
2919 tc = get_color(&s->colors, TOG_COLOR_COMMIT);
2920 if (tc)
2921 wattr_on(view->window, COLOR_PAIR(tc->colorpair), NULL);
2922 waddwstr(view->window, wline);
2923 while (width < view->ncols) {
2924 waddch(view->window, ' ');
2925 width++;
2926 }
2927 if (tc)
2928 wattr_off(view->window, COLOR_PAIR(tc->colorpair), NULL);
2929 if (view_needs_focus_indication(view))
2930 wstandend(view->window);
2931 free(wline);
2932 if (limit <= 1)
2933 goto done;
2934
2935 /* Grow author column size if necessary, and set view->maxx. */
2936 entry = s->first_displayed_entry;
2937 ncommits = 0;
2938 view->maxx = 0;
2939 while (entry) {
2940 struct got_commit_object *c = entry->commit;
2941 char *author, *eol, *msg, *msg0;
2942 wchar_t *wauthor, *wmsg;
2943 int width;
2944 if (ncommits >= limit - 1)
2945 break;
2946 if (s->use_committer)
2947 author = strdup(got_object_commit_get_committer(c));
2948 else
2949 author = strdup(got_object_commit_get_author(c));
2950 if (author == NULL) {
2951 err = got_error_from_errno("strdup");
2952 goto done;
2953 }
2954 err = format_author(&wauthor, &width, author, COLS,
2955 date_display_cols);
2956 if (author_cols < width)
2957 author_cols = width;
2958 free(wauthor);
2959 free(author);
2960 if (err)
2961 goto done;
2962 refs = got_reflist_object_id_map_lookup(tog_refs_idmap,
2963 entry->id);
2964 err = build_refs_str(&refs_str, refs, entry->id, s->repo);
2965 if (err)
2966 goto done;
2967 if (refs_str) {
2968 wchar_t *ws;
2969 err = format_line(&ws, &width, NULL, refs_str,
2970 0, INT_MAX, date_display_cols + author_cols, 0);
2971 free(ws);
2972 free(refs_str);
2973 refs_str = NULL;
2974 if (err)
2975 goto done;
2976 refstr_cols = width + 3; /* account for [ ] + space */
2977 } else
2978 refstr_cols = 0;
2979 err = got_object_commit_get_logmsg(&msg0, c);
2980 if (err)
2981 goto done;
2982 msg = msg0;
2983 while (*msg == '\n')
2984 ++msg;
2985 if ((eol = strchr(msg, '\n')))
2986 *eol = '\0';
2987 err = format_line(&wmsg, &width, NULL, msg, 0, INT_MAX,
2988 date_display_cols + author_cols + refstr_cols, 0);
2989 if (err)
2990 goto done;
2991 view->maxx = MAX(view->maxx, width + refstr_cols);
2992 free(msg0);
2993 free(wmsg);
2994 ncommits++;
2995 entry = TAILQ_NEXT(entry, entry);
2996 }
2997
2998 entry = s->first_displayed_entry;
2999 s->last_displayed_entry = s->first_displayed_entry;
3000 ncommits = 0;
3001 while (entry) {
3002 if (ncommits >= limit - 1)
3003 break;
3004 if (ncommits == s->selected)
3005 wstandout(view->window);
3006 err = draw_commit(view, entry, date_display_cols, author_cols);
3007 if (ncommits == s->selected)
3008 wstandend(view->window);
3009 if (err)
3010 goto done;
3011 ncommits++;
3012 s->last_displayed_entry = entry;
3013 entry = TAILQ_NEXT(entry, entry);
3014 }
3015
3016 view_border(view);
3017 done:
3018 free(id_str);
3019 free(refs_str);
3020 free(ncommits_str);
3021 free(header);
3022 return err;
3023 }
3024
3025 static void
3026 log_scroll_up(struct tog_log_view_state *s, int maxscroll)
3027 {
3028 struct commit_queue_entry *entry;
3029 int nscrolled = 0;
3030
3031 entry = TAILQ_FIRST(&s->commits->head);
3032 if (s->first_displayed_entry == entry)
3033 return;
3034
3035 entry = s->first_displayed_entry;
3036 while (entry && nscrolled < maxscroll) {
3037 entry = TAILQ_PREV(entry, commit_queue_head, entry);
3038 if (entry) {
3039 s->first_displayed_entry = entry;
3040 nscrolled++;
3041 }
3042 }
3043 }
3044
3045 static const struct got_error *
3046 trigger_log_thread(struct tog_view *view, int wait)
3047 {
3048 struct tog_log_thread_args *ta = &view->state.log.thread_args;
3049 int errcode;
3050
3051 if (!using_mock_io)
3052 halfdelay(1); /* fast refresh while loading commits */
3053
3054 while (!ta->log_complete && !tog_thread_error &&
3055 (ta->commits_needed > 0 || ta->load_all)) {
3056 /* Wake the log thread. */
3057 errcode = pthread_cond_signal(&ta->need_commits);
3058 if (errcode)
3059 return got_error_set_errno(errcode,
3060 "pthread_cond_signal");
3061
3062 /*
3063 * The mutex will be released while the view loop waits
3064 * in wgetch(), at which time the log thread will run.
3065 */
3066 if (!wait)
3067 break;
3068
3069 /* Display progress update in log view. */
3070 show_log_view(view);
3071 update_panels();
3072 doupdate();
3073
3074 /* Wait right here while next commit is being loaded. */
3075 errcode = pthread_cond_wait(&ta->commit_loaded, &tog_mutex);
3076 if (errcode)
3077 return got_error_set_errno(errcode,
3078 "pthread_cond_wait");
3079
3080 /* Display progress update in log view. */
3081 show_log_view(view);
3082 update_panels();
3083 doupdate();
3084 }
3085
3086 return NULL;
3087 }
3088
3089 static const struct got_error *
3090 request_log_commits(struct tog_view *view)
3091 {
3092 struct tog_log_view_state *state = &view->state.log;
3093 const struct got_error *err = NULL;
3094
3095 if (state->thread_args.log_complete)
3096 return NULL;
3097
3098 state->thread_args.commits_needed += view->nscrolled;
3099 err = trigger_log_thread(view, 1);
3100 view->nscrolled = 0;
3101
3102 return err;
3103 }
3104
3105 static const struct got_error *
3106 log_scroll_down(struct tog_view *view, int maxscroll)
3107 {
3108 struct tog_log_view_state *s = &view->state.log;
3109 const struct got_error *err = NULL;
3110 struct commit_queue_entry *pentry;
3111 int nscrolled = 0, ncommits_needed;
3112
3113 if (s->last_displayed_entry == NULL)
3114 return NULL;
3115
3116 ncommits_needed = s->last_displayed_entry->idx + 1 + maxscroll;
3117 if (s->commits->ncommits < ncommits_needed &&
3118 !s->thread_args.log_complete) {
3119 /*
3120 * Ask the log thread for required amount of commits.
3121 */
3122 s->thread_args.commits_needed +=
3123 ncommits_needed - s->commits->ncommits;
3124 err = trigger_log_thread(view, 1);
3125 if (err)
3126 return err;
3127 }
3128
3129 do {
3130 pentry = TAILQ_NEXT(s->last_displayed_entry, entry);
3131 if (pentry == NULL && view->mode != TOG_VIEW_SPLIT_HRZN)
3132 break;
3133
3134 s->last_displayed_entry = pentry ?
3135 pentry : s->last_displayed_entry;
3136
3137 pentry = TAILQ_NEXT(s->first_displayed_entry, entry);
3138 if (pentry == NULL)
3139 break;
3140 s->first_displayed_entry = pentry;
3141 } while (++nscrolled < maxscroll);
3142
3143 if (view->mode == TOG_VIEW_SPLIT_HRZN && !s->thread_args.log_complete)
3144 view->nscrolled += nscrolled;
3145 else
3146 view->nscrolled = 0;
3147
3148 return err;
3149 }
3150
3151 static const struct got_error *
3152 open_diff_view_for_commit(struct tog_view **new_view, int begin_y, int begin_x,
3153 struct got_commit_object *commit, struct got_object_id *commit_id,
3154 struct tog_view *log_view, struct got_repository *repo)
3155 {
3156 const struct got_error *err;
3157 struct got_object_qid *parent_id;
3158 struct tog_view *diff_view;
3159
3160 diff_view = view_open(0, 0, begin_y, begin_x, TOG_VIEW_DIFF);
3161 if (diff_view == NULL)
3162 return got_error_from_errno("view_open");
3163
3164 parent_id = STAILQ_FIRST(got_object_commit_get_parent_ids(commit));
3165 err = open_diff_view(diff_view, parent_id ? &parent_id->id : NULL,
3166 commit_id, NULL, NULL, 3, 0, 0, log_view, repo);
3167 if (err == NULL)
3168 *new_view = diff_view;
3169 return err;
3170 }
3171
3172 static const struct got_error *
3173 tree_view_visit_subtree(struct tog_tree_view_state *s,
3174 struct got_tree_object *subtree)
3175 {
3176 struct tog_parent_tree *parent;
3177
3178 parent = calloc(1, sizeof(*parent));
3179 if (parent == NULL)
3180 return got_error_from_errno("calloc");
3181
3182 parent->tree = s->tree;
3183 parent->first_displayed_entry = s->first_displayed_entry;
3184 parent->selected_entry = s->selected_entry;
3185 parent->selected = s->selected;
3186 TAILQ_INSERT_HEAD(&s->parents, parent, entry);
3187 s->tree = subtree;
3188 s->selected = 0;
3189 s->first_displayed_entry = NULL;
3190 return NULL;
3191 }
3192
3193 static const struct got_error *
3194 tree_view_walk_path(struct tog_tree_view_state *s,
3195 struct got_commit_object *commit, const char *path)
3196 {
3197 const struct got_error *err = NULL;
3198 struct got_tree_object *tree = NULL;
3199 const char *p;
3200 char *slash, *subpath = NULL;
3201
3202 /* Walk the path and open corresponding tree objects. */
3203 p = path;
3204 while (*p) {
3205 struct got_tree_entry *te;
3206 struct got_object_id *tree_id;
3207 char *te_name;
3208
3209 while (p[0] == '/')
3210 p++;
3211
3212 /* Ensure the correct subtree entry is selected. */
3213 slash = strchr(p, '/');
3214 if (slash == NULL)
3215 te_name = strdup(p);
3216 else
3217 te_name = strndup(p, slash - p);
3218 if (te_name == NULL) {
3219 err = got_error_from_errno("strndup");
3220 break;
3221 }
3222 te = got_object_tree_find_entry(s->tree, te_name);
3223 if (te == NULL) {
3224 err = got_error_path(te_name, GOT_ERR_NO_TREE_ENTRY);
3225 free(te_name);
3226 break;
3227 }
3228 free(te_name);
3229 s->first_displayed_entry = s->selected_entry = te;
3230
3231 if (!S_ISDIR(got_tree_entry_get_mode(s->selected_entry)))
3232 break; /* jump to this file's entry */
3233
3234 slash = strchr(p, '/');
3235 if (slash)
3236 subpath = strndup(path, slash - path);
3237 else
3238 subpath = strdup(path);
3239 if (subpath == NULL) {
3240 err = got_error_from_errno("strdup");
3241 break;
3242 }
3243
3244 err = got_object_id_by_path(&tree_id, s->repo, commit,
3245 subpath);
3246 if (err)
3247 break;
3248
3249 err = got_object_open_as_tree(&tree, s->repo, tree_id);
3250 free(tree_id);
3251 if (err)
3252 break;
3253
3254 err = tree_view_visit_subtree(s, tree);
3255 if (err) {
3256 got_object_tree_close(tree);
3257 break;
3258 }
3259 if (slash == NULL)
3260 break;
3261 free(subpath);
3262 subpath = NULL;
3263 p = slash;
3264 }
3265
3266 free(subpath);
3267 return err;
3268 }
3269
3270 static const struct got_error *
3271 browse_commit_tree(struct tog_view **new_view, int begin_y, int begin_x,
3272 struct commit_queue_entry *entry, const char *path,
3273 const char *head_ref_name, struct got_repository *repo)
3274 {
3275 const struct got_error *err = NULL;
3276 struct tog_tree_view_state *s;
3277 struct tog_view *tree_view;
3278
3279 tree_view = view_open(0, 0, begin_y, begin_x, TOG_VIEW_TREE);
3280 if (tree_view == NULL)
3281 return got_error_from_errno("view_open");
3282
3283 err = open_tree_view(tree_view, entry->id, head_ref_name, repo);
3284 if (err)
3285 return err;
3286 s = &tree_view->state.tree;
3287
3288 *new_view = tree_view;
3289
3290 if (got_path_is_root_dir(path))
3291 return NULL;
3292
3293 return tree_view_walk_path(s, entry->commit, path);
3294 }
3295
3296 static const struct got_error *
3297 block_signals_used_by_main_thread(void)
3298 {
3299 sigset_t sigset;
3300 int errcode;
3301
3302 if (sigemptyset(&sigset) == -1)
3303 return got_error_from_errno("sigemptyset");
3304
3305 /* tog handles SIGWINCH, SIGCONT, SIGINT, SIGTERM */
3306 if (sigaddset(&sigset, SIGWINCH) == -1)
3307 return got_error_from_errno("sigaddset");
3308 if (sigaddset(&sigset, SIGCONT) == -1)
3309 return got_error_from_errno("sigaddset");
3310 if (sigaddset(&sigset, SIGINT) == -1)
3311 return got_error_from_errno("sigaddset");
3312 if (sigaddset(&sigset, SIGTERM) == -1)
3313 return got_error_from_errno("sigaddset");
3314
3315 /* ncurses handles SIGTSTP */
3316 if (sigaddset(&sigset, SIGTSTP) == -1)
3317 return got_error_from_errno("sigaddset");
3318
3319 errcode = pthread_sigmask(SIG_BLOCK, &sigset, NULL);
3320 if (errcode)
3321 return got_error_set_errno(errcode, "pthread_sigmask");
3322
3323 return NULL;
3324 }
3325
3326 static void *
3327 log_thread(void *arg)
3328 {
3329 const struct got_error *err = NULL;
3330 int errcode = 0;
3331 struct tog_log_thread_args *a = arg;
3332 int done = 0;
3333
3334 /*
3335 * Sync startup with main thread such that we begin our
3336 * work once view_input() has released the mutex.
3337 */
3338 errcode = pthread_mutex_lock(&tog_mutex);
3339 if (errcode) {
3340 err = got_error_set_errno(errcode, "pthread_mutex_lock");
3341 return (void *)err;
3342 }
3343
3344 err = block_signals_used_by_main_thread();
3345 if (err) {
3346 pthread_mutex_unlock(&tog_mutex);
3347 goto done;
3348 }
3349
3350 while (!done && !err && !tog_fatal_signal_received()) {
3351 errcode = pthread_mutex_unlock(&tog_mutex);
3352 if (errcode) {
3353 err = got_error_set_errno(errcode,
3354 "pthread_mutex_unlock");
3355 goto done;
3356 }
3357 err = queue_commits(a);
3358 if (err) {
3359 if (err->code != GOT_ERR_ITER_COMPLETED)
3360 goto done;
3361 err = NULL;
3362 done = 1;
3363 a->commits_needed = 0;
3364 } else if (a->commits_needed > 0 && !a->load_all) {
3365 if (*a->limiting) {
3366 if (a->limit_match)
3367 a->commits_needed--;
3368 } else
3369 a->commits_needed--;
3370 }
3371
3372 errcode = pthread_mutex_lock(&tog_mutex);
3373 if (errcode) {
3374 err = got_error_set_errno(errcode,
3375 "pthread_mutex_lock");
3376 goto done;
3377 } else if (*a->quit)
3378 done = 1;
3379 else if (*a->limiting && *a->first_displayed_entry == NULL) {
3380 *a->first_displayed_entry =
3381 TAILQ_FIRST(&a->limit_commits->head);
3382 *a->selected_entry = *a->first_displayed_entry;
3383 } else if (*a->first_displayed_entry == NULL) {
3384 *a->first_displayed_entry =
3385 TAILQ_FIRST(&a->real_commits->head);
3386 *a->selected_entry = *a->first_displayed_entry;
3387 }
3388
3389 errcode = pthread_cond_signal(&a->commit_loaded);
3390 if (errcode) {
3391 err = got_error_set_errno(errcode,
3392 "pthread_cond_signal");
3393 pthread_mutex_unlock(&tog_mutex);
3394 goto done;
3395 }
3396
3397 if (a->commits_needed == 0 &&
3398 a->need_commit_marker && a->worktree) {
3399 errcode = pthread_mutex_unlock(&tog_mutex);
3400 if (errcode) {
3401 err = got_error_set_errno(errcode,
3402 "pthread_mutex_unlock");
3403 goto done;
3404 }
3405 err = got_worktree_get_state(&tog_base_commit.marker,
3406 a->repo, a->worktree, NULL, NULL);
3407 if (err)
3408 goto done;
3409 errcode = pthread_mutex_lock(&tog_mutex);
3410 if (errcode) {
3411 err = got_error_set_errno(errcode,
3412 "pthread_mutex_lock");
3413 goto done;
3414 }
3415 a->need_commit_marker = 0;
3416 /*
3417 * The main thread did not close this
3418 * work tree yet. Close it now.
3419 */
3420 got_worktree_close(a->worktree);
3421 a->worktree = NULL;
3422
3423 if (*a->quit)
3424 done = 1;
3425 }
3426
3427 if (done)
3428 a->commits_needed = 0;
3429 else {
3430 if (a->commits_needed == 0 && !a->load_all) {
3431 if (tog_io.wait_for_ui) {
3432 errcode = pthread_cond_signal(
3433 &a->log_loaded);
3434 if (errcode && err == NULL)
3435 err = got_error_set_errno(
3436 errcode,
3437 "pthread_cond_signal");
3438 }
3439
3440 errcode = pthread_cond_wait(&a->need_commits,
3441 &tog_mutex);
3442 if (errcode) {
3443 err = got_error_set_errno(errcode,
3444 "pthread_cond_wait");
3445 pthread_mutex_unlock(&tog_mutex);
3446 goto done;
3447 }
3448 if (*a->quit)
3449 done = 1;
3450 }
3451 }
3452 }
3453 a->log_complete = 1;
3454 if (tog_io.wait_for_ui) {
3455 errcode = pthread_cond_signal(&a->log_loaded);
3456 if (errcode && err == NULL)
3457 err = got_error_set_errno(errcode,
3458 "pthread_cond_signal");
3459 }
3460
3461 errcode = pthread_mutex_unlock(&tog_mutex);
3462 if (errcode)
3463 err = got_error_set_errno(errcode, "pthread_mutex_unlock");
3464 done:
3465 if (err) {
3466 tog_thread_error = 1;
3467 pthread_cond_signal(&a->commit_loaded);
3468 if (a->worktree) {
3469 got_worktree_close(a->worktree);
3470 a->worktree = NULL;
3471 }
3472 }
3473 return (void *)err;
3474 }
3475
3476 static const struct got_error *
3477 stop_log_thread(struct tog_log_view_state *s)
3478 {
3479 const struct got_error *err = NULL, *thread_err = NULL;
3480 int errcode;
3481
3482 if (s->thread) {
3483 s->quit = 1;
3484 errcode = pthread_cond_signal(&s->thread_args.need_commits);
3485 if (errcode)
3486 return got_error_set_errno(errcode,
3487 "pthread_cond_signal");
3488 errcode = pthread_mutex_unlock(&tog_mutex);
3489 if (errcode)
3490 return got_error_set_errno(errcode,
3491 "pthread_mutex_unlock");
3492 errcode = pthread_join(s->thread, (void **)&thread_err);
3493 if (errcode)
3494 return got_error_set_errno(errcode, "pthread_join");
3495 errcode = pthread_mutex_lock(&tog_mutex);
3496 if (errcode)
3497 return got_error_set_errno(errcode,
3498 "pthread_mutex_lock");
3499 s->thread = 0; //NULL;
3500 }
3501
3502 if (s->thread_args.repo) {
3503 err = got_repo_close(s->thread_args.repo);
3504 s->thread_args.repo = NULL;
3505 }
3506
3507 if (s->thread_args.pack_fds) {
3508 const struct got_error *pack_err =
3509 got_repo_pack_fds_close(s->thread_args.pack_fds);
3510 if (err == NULL)
3511 err = pack_err;
3512 s->thread_args.pack_fds = NULL;
3513 }
3514
3515 if (s->thread_args.graph) {
3516 got_commit_graph_close(s->thread_args.graph);
3517 s->thread_args.graph = NULL;
3518 }
3519
3520 return err ? err : thread_err;
3521 }
3522
3523 static const struct got_error *
3524 close_log_view(struct tog_view *view)
3525 {
3526 const struct got_error *err = NULL;
3527 struct tog_log_view_state *s = &view->state.log;
3528 int errcode;
3529
3530 err = stop_log_thread(s);
3531
3532 errcode = pthread_cond_destroy(&s->thread_args.need_commits);
3533 if (errcode && err == NULL)
3534 err = got_error_set_errno(errcode, "pthread_cond_destroy");
3535
3536 errcode = pthread_cond_destroy(&s->thread_args.commit_loaded);
3537 if (errcode && err == NULL)
3538 err = got_error_set_errno(errcode, "pthread_cond_destroy");
3539
3540 free_commits(&s->limit_commits);
3541 free_commits(&s->real_commits);
3542 free(s->in_repo_path);
3543 s->in_repo_path = NULL;
3544 free(s->start_id);
3545 s->start_id = NULL;
3546 free(s->head_ref_name);
3547 s->head_ref_name = NULL;
3548 return err;
3549 }
3550
3551 /*
3552 * We use two queues to implement the limit feature: first consists of
3553 * commits matching the current limit_regex; second is the real queue
3554 * of all known commits (real_commits). When the user starts limiting,
3555 * we swap queues such that all movement and displaying functionality
3556 * works with very slight change.
3557 */
3558 static const struct got_error *
3559 limit_log_view(struct tog_view *view)
3560 {
3561 struct tog_log_view_state *s = &view->state.log;
3562 struct commit_queue_entry *entry;
3563 struct tog_view *v = view;
3564 const struct got_error *err = NULL;
3565 char pattern[1024];
3566 int ret;
3567
3568 if (view_is_hsplit_top(view))
3569 v = view->child;
3570 else if (view->mode == TOG_VIEW_SPLIT_VERT && view->parent)
3571 v = view->parent;
3572
3573 if (tog_io.input_str != NULL) {
3574 if (strlcpy(pattern, tog_io.input_str, sizeof(pattern)) >=
3575 sizeof(pattern))
3576 return got_error(GOT_ERR_NO_SPACE);
3577 } else {
3578 wmove(v->window, v->nlines - 1, 0);
3579 wclrtoeol(v->window);
3580 mvwaddstr(v->window, v->nlines - 1, 0, "&/");
3581 nodelay(v->window, FALSE);
3582 nocbreak();
3583 echo();
3584 ret = wgetnstr(v->window, pattern, sizeof(pattern));
3585 cbreak();
3586 noecho();
3587 nodelay(v->window, TRUE);
3588 if (ret == ERR)
3589 return NULL;
3590 }
3591
3592 if (*pattern == '\0') {
3593 /*
3594 * Safety measure for the situation where the user
3595 * resets limit without previously limiting anything.
3596 */
3597 if (!s->limit_view)
3598 return NULL;
3599
3600 /*
3601 * User could have pressed Ctrl+L, which refreshed the
3602 * commit queues, it means we can't save previously
3603 * (before limit took place) displayed entries,
3604 * because they would point to already free'ed memory,
3605 * so we are forced to always select first entry of
3606 * the queue.
3607 */
3608 s->commits = &s->real_commits;
3609 s->first_displayed_entry = TAILQ_FIRST(&s->real_commits.head);
3610 s->selected_entry = s->first_displayed_entry;
3611 s->selected = 0;
3612 s->limit_view = 0;
3613
3614 return NULL;
3615 }
3616
3617 if (regcomp(&s->limit_regex, pattern, REG_EXTENDED | REG_NEWLINE))
3618 return NULL;
3619
3620 s->limit_view = 1;
3621
3622 /* Clear the screen while loading limit view */
3623 s->first_displayed_entry = NULL;
3624 s->last_displayed_entry = NULL;
3625 s->selected_entry = NULL;
3626 s->commits = &s->limit_commits;
3627
3628 /* Prepare limit queue for new search */
3629 free_commits(&s->limit_commits);
3630 s->limit_commits.ncommits = 0;
3631
3632 /* First process commits, which are in queue already */
3633 TAILQ_FOREACH(entry, &s->real_commits.head, entry) {
3634 int have_match = 0;
3635
3636 err = match_commit(&have_match, entry->id,
3637 entry->commit, &s->limit_regex);
3638 if (err)
3639 return err;
3640
3641 if (have_match) {
3642 struct commit_queue_entry *matched;
3643
3644 matched = alloc_commit_queue_entry(entry->commit,
3645 entry->id);
3646 if (matched == NULL) {
3647 err = got_error_from_errno(
3648 "alloc_commit_queue_entry");
3649 break;
3650 }
3651 matched->commit = entry->commit;
3652 got_object_commit_retain(entry->commit);
3653
3654 matched->idx = s->limit_commits.ncommits;
3655 TAILQ_INSERT_TAIL(&s->limit_commits.head,
3656 matched, entry);
3657 s->limit_commits.ncommits++;
3658 }
3659 }
3660
3661 /* Second process all the commits, until we fill the screen */
3662 if (s->limit_commits.ncommits < view->nlines - 1 &&
3663 !s->thread_args.log_complete) {
3664 s->thread_args.commits_needed +=
3665 view->nlines - s->limit_commits.ncommits - 1;
3666 err = trigger_log_thread(view, 1);
3667 if (err)
3668 return err;
3669 }
3670
3671 s->first_displayed_entry = TAILQ_FIRST(&s->commits->head);
3672 s->selected_entry = TAILQ_FIRST(&s->commits->head);
3673 s->selected = 0;
3674
3675 return NULL;
3676 }
3677
3678 static const struct got_error *
3679 search_start_log_view(struct tog_view *view)
3680 {
3681 struct tog_log_view_state *s = &view->state.log;
3682
3683 s->matched_entry = NULL;
3684 s->search_entry = NULL;
3685 return NULL;
3686 }
3687
3688 static const struct got_error *
3689 search_next_log_view(struct tog_view *view)
3690 {
3691 const struct got_error *err = NULL;
3692 struct tog_log_view_state *s = &view->state.log;
3693 struct commit_queue_entry *entry;
3694
3695 /* Display progress update in log view. */
3696 show_log_view(view);
3697 update_panels();
3698 doupdate();
3699
3700 if (s->search_entry) {
3701 if (!using_mock_io) {
3702 int errcode, ch;
3703
3704 errcode = pthread_mutex_unlock(&tog_mutex);
3705 if (errcode)
3706 return got_error_set_errno(errcode,
3707 "pthread_mutex_unlock");
3708 ch = wgetch(view->window);
3709 errcode = pthread_mutex_lock(&tog_mutex);
3710 if (errcode)
3711 return got_error_set_errno(errcode,
3712 "pthread_mutex_lock");
3713 if (ch == CTRL('g') || ch == KEY_BACKSPACE) {
3714 view->search_next_done = TOG_SEARCH_HAVE_MORE;
3715 return NULL;
3716 }
3717 }
3718 if (view->searching == TOG_SEARCH_FORWARD)
3719 entry = TAILQ_NEXT(s->search_entry, entry);
3720 else
3721 entry = TAILQ_PREV(s->search_entry,
3722 commit_queue_head, entry);
3723 } else if (s->matched_entry) {
3724 /*
3725 * If the user has moved the cursor after we hit a match,
3726 * the position from where we should continue searching
3727 * might have changed.
3728 */
3729 if (view->searching == TOG_SEARCH_FORWARD)
3730 entry = TAILQ_NEXT(s->selected_entry, entry);
3731 else
3732 entry = TAILQ_PREV(s->selected_entry, commit_queue_head,
3733 entry);
3734 } else {
3735 entry = s->selected_entry;
3736 }
3737
3738 while (1) {
3739 int have_match = 0;
3740
3741 if (entry == NULL) {
3742 if (s->thread_args.log_complete ||
3743 view->searching == TOG_SEARCH_BACKWARD) {
3744 view->search_next_done =
3745 (s->matched_entry == NULL ?
3746 TOG_SEARCH_HAVE_NONE : TOG_SEARCH_NO_MORE);
3747 s->search_entry = NULL;
3748 return NULL;
3749 }
3750 /*
3751 * Poke the log thread for more commits and return,
3752 * allowing the main loop to make progress. Search
3753 * will resume at s->search_entry once we come back.
3754 */
3755 s->search_entry = s->selected_entry;
3756 s->thread_args.commits_needed++;
3757 return trigger_log_thread(view, 0);
3758 }
3759
3760 err = match_commit(&have_match, entry->id, entry->commit,
3761 &view->regex);
3762 if (err)
3763 break;
3764 if (have_match) {
3765 view->search_next_done = TOG_SEARCH_HAVE_MORE;
3766 s->matched_entry = entry;
3767 break;
3768 }
3769
3770 s->search_entry = entry;
3771 if (view->searching == TOG_SEARCH_FORWARD)
3772 entry = TAILQ_NEXT(entry, entry);
3773 else
3774 entry = TAILQ_PREV(entry, commit_queue_head, entry);
3775 }
3776
3777 if (s->matched_entry) {
3778 int cur = s->selected_entry->idx;
3779 while (cur < s->matched_entry->idx) {
3780 err = input_log_view(NULL, view, KEY_DOWN);
3781 if (err)
3782 return err;
3783 cur++;
3784 }
3785 while (cur > s->matched_entry->idx) {
3786 err = input_log_view(NULL, view, KEY_UP);
3787 if (err)
3788 return err;
3789 cur--;
3790 }
3791 }
3792
3793 s->search_entry = NULL;
3794
3795 return NULL;
3796 }
3797
3798 static const struct got_error *
3799 open_log_view(struct tog_view *view, struct got_object_id *start_id,
3800 struct got_repository *repo, const char *head_ref_name,
3801 const char *in_repo_path, int log_branches,
3802 struct got_worktree *worktree)
3803 {
3804 const struct got_error *err = NULL;
3805 struct tog_log_view_state *s = &view->state.log;
3806 struct got_repository *thread_repo = NULL;
3807 struct got_commit_graph *thread_graph = NULL;
3808 int errcode;
3809
3810 if (in_repo_path != s->in_repo_path) {
3811 free(s->in_repo_path);
3812 s->in_repo_path = strdup(in_repo_path);
3813 if (s->in_repo_path == NULL) {
3814 err = got_error_from_errno("strdup");
3815 goto done;
3816 }
3817 }
3818
3819 /* The commit queue only contains commits being displayed. */
3820 TAILQ_INIT(&s->real_commits.head);
3821 s->real_commits.ncommits = 0;
3822 s->commits = &s->real_commits;
3823
3824 TAILQ_INIT(&s->limit_commits.head);
3825 s->limit_view = 0;
3826 s->limit_commits.ncommits = 0;
3827
3828 s->repo = repo;
3829 if (head_ref_name) {
3830 s->head_ref_name = strdup(head_ref_name);
3831 if (s->head_ref_name == NULL) {
3832 err = got_error_from_errno("strdup");
3833 goto done;
3834 }
3835 }
3836 s->start_id = got_object_id_dup(start_id);
3837 if (s->start_id == NULL) {
3838 err = got_error_from_errno("got_object_id_dup");
3839 goto done;
3840 }
3841 s->log_branches = log_branches;
3842 s->use_committer = 1;
3843
3844 STAILQ_INIT(&s->colors);
3845 if (has_colors() && getenv("TOG_COLORS") != NULL) {
3846 err = add_color(&s->colors, "^$", TOG_COLOR_COMMIT,
3847 get_color_value("TOG_COLOR_COMMIT"));
3848 if (err)
3849 goto done;
3850 err = add_color(&s->colors, "^$", TOG_COLOR_AUTHOR,
3851 get_color_value("TOG_COLOR_AUTHOR"));
3852 if (err) {
3853 free_colors(&s->colors);
3854 goto done;
3855 }
3856 err = add_color(&s->colors, "^$", TOG_COLOR_DATE,
3857 get_color_value("TOG_COLOR_DATE"));
3858 if (err) {
3859 free_colors(&s->colors);
3860 goto done;
3861 }
3862 }
3863
3864 view->show = show_log_view;
3865 view->input = input_log_view;
3866 view->resize = resize_log_view;
3867 view->close = close_log_view;
3868 view->search_start = search_start_log_view;
3869 view->search_next = search_next_log_view;
3870
3871 if (s->thread_args.pack_fds == NULL) {
3872 err = got_repo_pack_fds_open(&s->thread_args.pack_fds);
3873 if (err)
3874 goto done;
3875 }
3876 err = got_repo_open(&thread_repo, got_repo_get_path(repo), NULL,
3877 s->thread_args.pack_fds);
3878 if (err)
3879 goto done;
3880 err = got_commit_graph_open(&thread_graph, s->in_repo_path,
3881 !s->log_branches);
3882 if (err)
3883 goto done;
3884 err = got_commit_graph_iter_start(thread_graph, s->start_id,
3885 s->repo, NULL, NULL);
3886 if (err)
3887 goto done;
3888
3889 errcode = pthread_cond_init(&s->thread_args.need_commits, NULL);
3890 if (errcode) {
3891 err = got_error_set_errno(errcode, "pthread_cond_init");
3892 goto done;
3893 }
3894 errcode = pthread_cond_init(&s->thread_args.commit_loaded, NULL);
3895 if (errcode) {
3896 err = got_error_set_errno(errcode, "pthread_cond_init");
3897 goto done;
3898 }
3899
3900 if (using_mock_io) {
3901 int rc;
3902
3903 rc = pthread_cond_init(&s->thread_args.log_loaded, NULL);
3904 if (rc)
3905 return got_error_set_errno(rc, "pthread_cond_init");
3906 }
3907
3908 s->thread_args.commits_needed = view->nlines;
3909 s->thread_args.graph = thread_graph;
3910 s->thread_args.real_commits = &s->real_commits;
3911 s->thread_args.limit_commits = &s->limit_commits;
3912 s->thread_args.in_repo_path = s->in_repo_path;
3913 s->thread_args.start_id = s->start_id;
3914 s->thread_args.repo = thread_repo;
3915 s->thread_args.log_complete = 0;
3916 s->thread_args.quit = &s->quit;
3917 s->thread_args.first_displayed_entry = &s->first_displayed_entry;
3918 s->thread_args.selected_entry = &s->selected_entry;
3919 s->thread_args.searching = &view->searching;
3920 s->thread_args.search_next_done = &view->search_next_done;
3921 s->thread_args.regex = &view->regex;
3922 s->thread_args.limiting = &s->limit_view;
3923 s->thread_args.limit_regex = &s->limit_regex;
3924 s->thread_args.limit_commits = &s->limit_commits;
3925 s->thread_args.worktree = worktree;
3926 if (worktree)
3927 s->thread_args.need_commit_marker = 1;
3928 done:
3929 if (err) {
3930 if (view->close == NULL)
3931 close_log_view(view);
3932 view_close(view);
3933 }
3934 return err;
3935 }
3936
3937 static const struct got_error *
3938 show_log_view(struct tog_view *view)
3939 {
3940 const struct got_error *err;
3941 struct tog_log_view_state *s = &view->state.log;
3942
3943 if (s->thread == 0) { //NULL) {
3944 int errcode = pthread_create(&s->thread, NULL, log_thread,
3945 &s->thread_args);
3946 if (errcode)
3947 return got_error_set_errno(errcode, "pthread_create");
3948 if (s->thread_args.commits_needed > 0) {
3949 err = trigger_log_thread(view, 1);
3950 if (err)
3951 return err;
3952 }
3953 }
3954
3955 return draw_commits(view);
3956 }
3957
3958 static void
3959 log_move_cursor_up(struct tog_view *view, int page, int home)
3960 {
3961 struct tog_log_view_state *s = &view->state.log;
3962
3963 if (s->first_displayed_entry == NULL)
3964 return;
3965 if (s->selected_entry->idx == 0)
3966 view->count = 0;
3967
3968 if ((page && TAILQ_FIRST(&s->commits->head) == s->first_displayed_entry)
3969 || home)
3970 s->selected = home ? 0 : MAX(0, s->selected - page - 1);
3971
3972 if (!page && !home && s->selected > 0)
3973 --s->selected;
3974 else
3975 log_scroll_up(s, home ? s->commits->ncommits : MAX(page, 1));
3976
3977 select_commit(s);
3978 return;
3979 }
3980
3981 static const struct got_error *
3982 log_move_cursor_down(struct tog_view *view, int page)
3983 {
3984 struct tog_log_view_state *s = &view->state.log;
3985 const struct got_error *err = NULL;
3986 int eos = view->nlines - 2;
3987
3988 if (s->first_displayed_entry == NULL)
3989 return NULL;
3990
3991 if (s->thread_args.log_complete &&
3992 s->selected_entry->idx >= s->commits->ncommits - 1)
3993 return NULL;
3994
3995 if (view_is_hsplit_top(view))
3996 --eos; /* border consumes the last line */
3997
3998 if (!page) {
3999 if (s->selected < MIN(eos, s->commits->ncommits - 1))
4000 ++s->selected;
4001 else
4002 err = log_scroll_down(view, 1);
4003 } else if (s->thread_args.load_all && s->thread_args.log_complete) {
4004 struct commit_queue_entry *entry;
4005 int n;
4006
4007 s->selected = 0;
4008 entry = TAILQ_LAST(&s->commits->head, commit_queue_head);
4009 s->last_displayed_entry = entry;
4010 for (n = 0; n <= eos; n++) {
4011 if (entry == NULL)
4012 break;
4013 s->first_displayed_entry = entry;
4014 entry = TAILQ_PREV(entry, commit_queue_head, entry);
4015 }
4016 if (n > 0)
4017 s->selected = n - 1;
4018 } else {
4019 if (s->last_displayed_entry->idx == s->commits->ncommits - 1 &&
4020 s->thread_args.log_complete)
4021 s->selected += MIN(page,
4022 s->commits->ncommits - s->selected_entry->idx - 1);
4023 else
4024 err = log_scroll_down(view, page);
4025 }
4026 if (err)
4027 return err;
4028
4029 /*
4030 * We might necessarily overshoot in horizontal
4031 * splits; if so, select the last displayed commit.
4032 */
4033 if (s->first_displayed_entry && s->last_displayed_entry) {
4034 s->selected = MIN(s->selected,
4035 s->last_displayed_entry->idx -
4036 s->first_displayed_entry->idx);
4037 }
4038
4039 select_commit(s);
4040
4041 if (s->thread_args.log_complete &&
4042 s->selected_entry->idx == s->commits->ncommits - 1)
4043 view->count = 0;
4044
4045 return NULL;
4046 }
4047
4048 static void
4049 view_get_split(struct tog_view *view, int *y, int *x)
4050 {
4051 *x = 0;
4052 *y = 0;
4053
4054 if (view->mode == TOG_VIEW_SPLIT_HRZN) {
4055 if (view->child && view->child->resized_y)
4056 *y = view->child->resized_y;
4057 else if (view->resized_y)
4058 *y = view->resized_y;
4059 else
4060 *y = view_split_begin_y(view->lines);
4061 } else if (view->mode == TOG_VIEW_SPLIT_VERT) {
4062 if (view->child && view->child->resized_x)
4063 *x = view->child->resized_x;
4064 else if (view->resized_x)
4065 *x = view->resized_x;
4066 else
4067 *x = view_split_begin_x(view->begin_x);
4068 }
4069 }
4070
4071 /* Split view horizontally at y and offset view->state->selected line. */
4072 static const struct got_error *
4073 view_init_hsplit(struct tog_view *view, int y)
4074 {
4075 const struct got_error *err = NULL;
4076
4077 view->nlines = y;
4078 view->ncols = COLS;
4079 err = view_resize(view);
4080 if (err)
4081 return err;
4082
4083 err = offset_selection_down(view);
4084
4085 return err;
4086 }
4087
4088 static const struct got_error *
4089 log_goto_line(struct tog_view *view, int nlines)
4090 {
4091 const struct got_error *err = NULL;
4092 struct tog_log_view_state *s = &view->state.log;
4093 int g, idx = s->selected_entry->idx;
4094
4095 if (s->first_displayed_entry == NULL || s->last_displayed_entry == NULL)
4096 return NULL;
4097
4098 g = view->gline;
4099 view->gline = 0;
4100
4101 if (g >= s->first_displayed_entry->idx + 1 &&
4102 g <= s->last_displayed_entry->idx + 1 &&
4103 g - s->first_displayed_entry->idx - 1 < nlines) {
4104 s->selected = g - s->first_displayed_entry->idx - 1;
4105 select_commit(s);
4106 return NULL;
4107 }
4108
4109 if (idx + 1 < g) {
4110 err = log_move_cursor_down(view, g - idx - 1);
4111 if (!err && g > s->selected_entry->idx + 1)
4112 err = log_move_cursor_down(view,
4113 g - s->first_displayed_entry->idx - 1);
4114 if (err)
4115 return err;
4116 } else if (idx + 1 > g)
4117 log_move_cursor_up(view, idx - g + 1, 0);
4118
4119 if (g < nlines && s->first_displayed_entry->idx == 0)
4120 s->selected = g - 1;
4121
4122 select_commit(s);
4123 return NULL;
4124
4125 }
4126
4127 static void
4128 horizontal_scroll_input(struct tog_view *view, int ch)
4129 {
4130
4131 switch (ch) {
4132 case KEY_LEFT:
4133 case 'h':
4134 view->x -= MIN(view->x, 2);
4135 if (view->x <= 0)
4136 view->count = 0;
4137 break;
4138 case KEY_RIGHT:
4139 case 'l':
4140 if (view->x + view->ncols / 2 < view->maxx)
4141 view->x += 2;
4142 else
4143 view->count = 0;
4144 break;
4145 case '0':
4146 view->x = 0;
4147 break;
4148 case '$':
4149 view->x = MAX(view->maxx - view->ncols / 2, 0);
4150 view->count = 0;
4151 break;
4152 default:
4153 break;
4154 }
4155 }
4156
4157 static const struct got_error *
4158 input_log_view(struct tog_view **new_view, struct tog_view *view, int ch)
4159 {
4160 const struct got_error *err = NULL;
4161 struct tog_log_view_state *s = &view->state.log;
4162 int eos, nscroll;
4163
4164 if (s->thread_args.load_all) {
4165 if (ch == CTRL('g') || ch == KEY_BACKSPACE)
4166 s->thread_args.load_all = 0;
4167 else if (s->thread_args.log_complete) {
4168 err = log_move_cursor_down(view, s->commits->ncommits);
4169 s->thread_args.load_all = 0;
4170 }
4171 if (err)
4172 return err;
4173 }
4174
4175 eos = nscroll = view->nlines - 1;
4176 if (view_is_hsplit_top(view))
4177 --eos; /* border */
4178
4179 if (view->gline)
4180 return log_goto_line(view, eos);
4181
4182 switch (ch) {
4183 case '&':
4184 err = limit_log_view(view);
4185 break;
4186 case 'q':
4187 s->quit = 1;
4188 break;
4189 case '0':
4190 case '$':
4191 case KEY_RIGHT:
4192 case 'l':
4193 case KEY_LEFT:
4194 case 'h':
4195 horizontal_scroll_input(view, ch);
4196 break;
4197 case 'k':
4198 case KEY_UP:
4199 case '<':
4200 case ',':
4201 case CTRL('p'):
4202 log_move_cursor_up(view, 0, 0);
4203 break;
4204 case 'g':
4205 case '=':
4206 case KEY_HOME:
4207 log_move_cursor_up(view, 0, 1);
4208 view->count = 0;
4209 break;
4210 case CTRL('u'):
4211 case 'u':
4212 nscroll /= 2;
4213 /* FALL THROUGH */
4214 case KEY_PPAGE:
4215 case CTRL('b'):
4216 case 'b':
4217 log_move_cursor_up(view, nscroll, 0);
4218 break;
4219 case 'j':
4220 case KEY_DOWN:
4221 case '>':
4222 case '.':
4223 case CTRL('n'):
4224 err = log_move_cursor_down(view, 0);
4225 break;
4226 case '@':
4227 s->use_committer = !s->use_committer;
4228 view->action = s->use_committer ?
4229 "show committer" : "show commit author";
4230 break;
4231 case 'G':
4232 case '*':
4233 case KEY_END: {
4234 /* We don't know yet how many commits, so we're forced to
4235 * traverse them all. */
4236 view->count = 0;
4237 s->thread_args.load_all = 1;
4238 if (!s->thread_args.log_complete)
4239 return trigger_log_thread(view, 0);
4240 err = log_move_cursor_down(view, s->commits->ncommits);
4241 s->thread_args.load_all = 0;
4242 break;
4243 }
4244 case CTRL('d'):
4245 case 'd':
4246 nscroll /= 2;
4247 /* FALL THROUGH */
4248 case KEY_NPAGE:
4249 case CTRL('f'):
4250 case 'f':
4251 case ' ':
4252 err = log_move_cursor_down(view, nscroll);
4253 break;
4254 case KEY_RESIZE:
4255 if (s->selected > view->nlines - 2)
4256 s->selected = view->nlines - 2;
4257 if (s->selected > s->commits->ncommits - 1)
4258 s->selected = s->commits->ncommits - 1;
4259 select_commit(s);
4260 if (s->commits->ncommits < view->nlines - 1 &&
4261 !s->thread_args.log_complete) {
4262 s->thread_args.commits_needed += (view->nlines - 1) -
4263 s->commits->ncommits;
4264 err = trigger_log_thread(view, 1);
4265 }
4266 break;
4267 case KEY_ENTER:
4268 case '\r':
4269 view->count = 0;
4270 if (s->selected_entry == NULL)
4271 break;
4272 err = view_request_new(new_view, view, TOG_VIEW_DIFF);
4273 break;
4274 case 'T':
4275 view->count = 0;
4276 if (s->selected_entry == NULL)
4277 break;
4278 err = view_request_new(new_view, view, TOG_VIEW_TREE);
4279 break;
4280 case KEY_BACKSPACE:
4281 case CTRL('l'):
4282 case 'B':
4283 view->count = 0;
4284 if (ch == KEY_BACKSPACE &&
4285 got_path_is_root_dir(s->in_repo_path))
4286 break;
4287 err = stop_log_thread(s);
4288 if (err)
4289 return err;
4290 if (ch == KEY_BACKSPACE) {
4291 char *parent_path;
4292 err = got_path_dirname(&parent_path, s->in_repo_path);
4293 if (err)
4294 return err;
4295 free(s->in_repo_path);
4296 s->in_repo_path = parent_path;
4297 s->thread_args.in_repo_path = s->in_repo_path;
4298 } else if (ch == CTRL('l')) {
4299 struct got_object_id *start_id;
4300 err = got_repo_match_object_id(&start_id, NULL,
4301 s->head_ref_name ? s->head_ref_name : GOT_REF_HEAD,
4302 GOT_OBJ_TYPE_COMMIT, &tog_refs, s->repo);
4303 if (err) {
4304 if (s->head_ref_name == NULL ||
4305 err->code != GOT_ERR_NOT_REF)
4306 return err;
4307 /* Try to cope with deleted references. */
4308 free(s->head_ref_name);
4309 s->head_ref_name = NULL;
4310 err = got_repo_match_object_id(&start_id,
4311 NULL, GOT_REF_HEAD, GOT_OBJ_TYPE_COMMIT,
4312 &tog_refs, s->repo);
4313 if (err)
4314 return err;
4315 }
4316 free(s->start_id);
4317 s->start_id = start_id;
4318 s->thread_args.start_id = s->start_id;
4319 } else /* 'B' */
4320 s->log_branches = !s->log_branches;
4321
4322 if (s->thread_args.pack_fds == NULL) {
4323 err = got_repo_pack_fds_open(&s->thread_args.pack_fds);
4324 if (err)
4325 return err;
4326 }
4327 err = got_repo_open(&s->thread_args.repo,
4328 got_repo_get_path(s->repo), NULL,
4329 s->thread_args.pack_fds);
4330 if (err)
4331 return err;
4332 tog_free_refs();
4333 err = tog_load_refs(s->repo, 0);
4334 if (err)
4335 return err;
4336 err = got_commit_graph_open(&s->thread_args.graph,
4337 s->in_repo_path, !s->log_branches);
4338 if (err)
4339 return err;
4340 err = got_commit_graph_iter_start(s->thread_args.graph,
4341 s->start_id, s->repo, NULL, NULL);
4342 if (err)
4343 return err;
4344 free_commits(&s->real_commits);
4345 free_commits(&s->limit_commits);
4346 s->first_displayed_entry = NULL;
4347 s->last_displayed_entry = NULL;
4348 s->selected_entry = NULL;
4349 s->selected = 0;
4350 s->thread_args.log_complete = 0;
4351 s->quit = 0;
4352 s->thread_args.commits_needed = view->lines;
4353 s->matched_entry = NULL;
4354 s->search_entry = NULL;
4355 view->offset = 0;
4356 break;
4357 case 'R':
4358 view->count = 0;
4359 err = view_request_new(new_view, view, TOG_VIEW_REF);
4360 break;
4361 default:
4362 view->count = 0;
4363 break;
4364 }
4365
4366 return err;
4367 }
4368
4369 static const struct got_error *
4370 apply_unveil(const char *repo_path, const char *worktree_path)
4371 {
4372 const struct got_error *error;
4373
4374 #ifdef PROFILE
4375 if (unveil("gmon.out", "rwc") != 0)
4376 return got_error_from_errno2("unveil", "gmon.out");
4377 #endif
4378 if (repo_path && unveil(repo_path, "r") != 0)
4379 return got_error_from_errno2("unveil", repo_path);
4380
4381 if (worktree_path && unveil(worktree_path, "rwc") != 0)
4382 return got_error_from_errno2("unveil", worktree_path);
4383
4384 if (unveil(GOT_TMPDIR_STR, "rwc") != 0)
4385 return got_error_from_errno2("unveil", GOT_TMPDIR_STR);
4386
4387 error = got_privsep_unveil_exec_helpers();
4388 if (error != NULL)
4389 return error;
4390
4391 if (unveil(NULL, NULL) != 0)
4392 return got_error_from_errno("unveil");
4393
4394 return NULL;
4395 }
4396
4397 static const struct got_error *
4398 init_mock_term(const char *test_script_path)
4399 {
4400 const struct got_error *err = NULL;
4401 const char *screen_dump_path;
4402 int in;
4403
4404 if (test_script_path == NULL || *test_script_path == '\0')
4405 return got_error_msg(GOT_ERR_IO, "TOG_TEST_SCRIPT not defined");
4406
4407 tog_io.f = fopen(test_script_path, "re");
4408 if (tog_io.f == NULL) {
4409 err = got_error_from_errno_fmt("fopen: %s",
4410 test_script_path);
4411 goto done;
4412 }
4413
4414 /* test mode, we don't want any output */
4415 tog_io.cout = fopen("/dev/null", "w+");
4416 if (tog_io.cout == NULL) {
4417 err = got_error_from_errno2("fopen", "/dev/null");
4418 goto done;
4419 }
4420
4421 in = dup(fileno(tog_io.cout));
4422 if (in == -1) {
4423 err = got_error_from_errno("dup");
4424 goto done;
4425 }
4426 tog_io.cin = fdopen(in, "r");
4427 if (tog_io.cin == NULL) {
4428 err = got_error_from_errno("fdopen");
4429 close(in);
4430 goto done;
4431 }
4432
4433 screen_dump_path = getenv("TOG_SCR_DUMP");
4434 if (screen_dump_path == NULL || *screen_dump_path == '\0')
4435 return got_error_msg(GOT_ERR_IO, "TOG_SCR_DUMP not defined");
4436 tog_io.sdump = fopen(screen_dump_path, "we");
4437 if (tog_io.sdump == NULL) {
4438 err = got_error_from_errno2("fopen", screen_dump_path);
4439 goto done;
4440 }
4441
4442 if (fseeko(tog_io.f, 0L, SEEK_SET) == -1) {
4443 err = got_error_from_errno("fseeko");
4444 goto done;
4445 }
4446
4447 if (newterm(NULL, tog_io.cout, tog_io.cin) == NULL)
4448 err = got_error_msg(GOT_ERR_IO,
4449 "newterm: failed to initialise curses");
4450
4451 using_mock_io = 1;
4452
4453 done:
4454 if (err)
4455 tog_io_close();
4456 return err;
4457 }
4458
4459 static void
4460 init_curses(void)
4461 {
4462 if (using_mock_io) /* In test mode we use a fake terminal */
4463 return;
4464
4465 initscr();
4466
4467 cbreak();
4468 halfdelay(1); /* Fast refresh while initial view is loading. */
4469 noecho();
4470 nonl();
4471 intrflush(stdscr, FALSE);
4472 keypad(stdscr, TRUE);
4473 curs_set(0);
4474 if (getenv("TOG_COLORS") != NULL) {
4475 start_color();
4476 use_default_colors();
4477 }
4478
4479 return;
4480 }
4481
4482 static const struct got_error *
4483 set_tog_base_commit(struct got_repository *repo, struct got_worktree *worktree)
4484 {
4485 tog_base_commit.id = got_object_id_dup(
4486 got_worktree_get_base_commit_id(worktree));
4487 if (tog_base_commit.id == NULL)
4488 return got_error_from_errno( "got_object_id_dup");
4489
4490 return NULL;
4491 }
4492
4493 static const struct got_error *
4494 get_in_repo_path_from_argv0(char **in_repo_path, int argc, char *argv[],
4495 struct got_repository *repo, struct got_worktree *worktree)
4496 {
4497 const struct got_error *err = NULL;
4498
4499 if (argc == 0) {
4500 *in_repo_path = strdup("/");
4501 if (*in_repo_path == NULL)
4502 return got_error_from_errno("strdup");
4503 return NULL;
4504 }
4505
4506 if (worktree) {
4507 const char *prefix = got_worktree_get_path_prefix(worktree);
4508 char *p;
4509
4510 err = got_worktree_resolve_path(&p, worktree, argv[0]);
4511 if (err)
4512 return err;
4513 if (asprintf(in_repo_path, "%s%s%s", prefix,
4514 (p[0] != '\0' && !got_path_is_root_dir(prefix)) ? "/" : "",
4515 p) == -1) {
4516 err = got_error_from_errno("asprintf");
4517 *in_repo_path = NULL;
4518 }
4519 free(p);
4520 } else
4521 err = got_repo_map_path(in_repo_path, repo, argv[0]);
4522
4523 return err;
4524 }
4525
4526 static const struct got_error *
4527 cmd_log(int argc, char *argv[])
4528 {
4529 const struct got_error *error;
4530 struct got_repository *repo = NULL;
4531 struct got_worktree *worktree = NULL;
4532 struct got_object_id *start_id = NULL;
4533 char *in_repo_path = NULL, *repo_path = NULL, *cwd = NULL;
4534 char *keyword_idstr = NULL, *start_commit = NULL, *label = NULL;
4535 struct got_reference *ref = NULL;
4536 const char *head_ref_name = NULL;
4537 int ch, log_branches = 0;
4538 struct tog_view *view;
4539 int *pack_fds = NULL;
4540
4541 while ((ch = getopt(argc, argv, "bc:r:")) != -1) {
4542 switch (ch) {
4543 case 'b':
4544 log_branches = 1;
4545 break;
4546 case 'c':
4547 start_commit = optarg;
4548 break;
4549 case 'r':
4550 repo_path = realpath(optarg, NULL);
4551 if (repo_path == NULL)
4552 return got_error_from_errno2("realpath",
4553 optarg);
4554 break;
4555 default:
4556 usage_log();
4557 /* NOTREACHED */
4558 }
4559 }
4560
4561 argc -= optind;
4562 argv += optind;
4563
4564 if (argc > 1)
4565 usage_log();
4566
4567 error = got_repo_pack_fds_open(&pack_fds);
4568 if (error != NULL)
4569 goto done;
4570
4571 if (repo_path == NULL) {
4572 cwd = getcwd(NULL, 0);
4573 if (cwd == NULL) {
4574 error = got_error_from_errno("getcwd");
4575 goto done;
4576 }
4577 error = got_worktree_open(&worktree, cwd, NULL);
4578 if (error && error->code != GOT_ERR_NOT_WORKTREE)
4579 goto done;
4580 if (worktree)
4581 repo_path =
4582 strdup(got_worktree_get_repo_path(worktree));
4583 else
4584 repo_path = strdup(cwd);
4585 if (repo_path == NULL) {
4586 error = got_error_from_errno("strdup");
4587 goto done;
4588 }
4589 }
4590
4591 error = got_repo_open(&repo, repo_path, NULL, pack_fds);
4592 if (error != NULL)
4593 goto done;
4594
4595 error = get_in_repo_path_from_argv0(&in_repo_path, argc, argv,
4596 repo, worktree);
4597 if (error)
4598 goto done;
4599
4600 init_curses();
4601
4602 error = apply_unveil(got_repo_get_path(repo),
4603 worktree ? got_worktree_get_root_path(worktree) : NULL);
4604 if (error)
4605 goto done;
4606
4607 /* already loaded by tog_log_with_path()? */
4608 if (TAILQ_EMPTY(&tog_refs)) {
4609 error = tog_load_refs(repo, 0);
4610 if (error)
4611 goto done;
4612 }
4613
4614 if (start_commit == NULL) {
4615 error = got_repo_match_object_id(&start_id, &label,
4616 worktree ? got_worktree_get_head_ref_name(worktree) :
4617 GOT_REF_HEAD, GOT_OBJ_TYPE_COMMIT, &tog_refs, repo);
4618 if (error)
4619 goto done;
4620 head_ref_name = label;
4621 } else {
4622 error = got_keyword_to_idstr(&keyword_idstr, start_commit,
4623 repo, worktree);
4624 if (error != NULL)
4625 goto done;
4626 if (keyword_idstr != NULL)
4627 start_commit = keyword_idstr;
4628
4629 error = got_ref_open(&ref, repo, start_commit, 0);
4630 if (error == NULL)
4631 head_ref_name = got_ref_get_name(ref);
4632 else if (error->code != GOT_ERR_NOT_REF)
4633 goto done;
4634 error = got_repo_match_object_id(&start_id, NULL,
4635 start_commit, GOT_OBJ_TYPE_COMMIT, &tog_refs, repo);
4636 if (error)
4637 goto done;
4638 }
4639
4640 view = view_open(0, 0, 0, 0, TOG_VIEW_LOG);
4641 if (view == NULL) {
4642 error = got_error_from_errno("view_open");
4643 goto done;
4644 }
4645
4646 if (worktree) {
4647 error = set_tog_base_commit(repo, worktree);
4648 if (error != NULL)
4649 goto done;
4650 }
4651
4652 error = open_log_view(view, start_id, repo, head_ref_name,
4653 in_repo_path, log_branches, worktree);
4654 if (error)
4655 goto done;
4656
4657 if (worktree) {
4658 /* The work tree will be closed by the log thread. */
4659 worktree = NULL;
4660 }
4661
4662 error = view_loop(view);
4663
4664 done:
4665 free(tog_base_commit.id);
4666 free(keyword_idstr);
4667 free(in_repo_path);
4668 free(repo_path);
4669 free(cwd);
4670 free(start_id);
4671 free(label);
4672 if (ref)
4673 got_ref_close(ref);
4674 if (repo) {
4675 const struct got_error *close_err = got_repo_close(repo);
4676 if (error == NULL)
4677 error = close_err;
4678 }
4679 if (worktree)
4680 got_worktree_close(worktree);
4681 if (pack_fds) {
4682 const struct got_error *pack_err =
4683 got_repo_pack_fds_close(pack_fds);
4684 if (error == NULL)
4685 error = pack_err;
4686 }
4687 tog_free_refs();
4688 return error;
4689 }
4690
4691 __dead static void
4692 usage_diff(void)
4693 {
4694 endwin();
4695 fprintf(stderr, "usage: %s diff [-aw] [-C number] [-r repository-path] "
4696 "object1 object2\n", getprogname());
4697 exit(1);
4698 }
4699
4700 static int
4701 match_line(const char *line, regex_t *regex, size_t nmatch,
4702 regmatch_t *regmatch)
4703 {
4704 return regexec(regex, line, nmatch, regmatch, 0) == 0;
4705 }
4706
4707 static struct tog_color *
4708 match_color(struct tog_colors *colors, const char *line)
4709 {
4710 struct tog_color *tc = NULL;
4711
4712 STAILQ_FOREACH(tc, colors, entry) {
4713 if (match_line(line, &tc->regex, 0, NULL))
4714 return tc;
4715 }
4716
4717 return NULL;
4718 }
4719
4720 static const struct got_error *
4721 add_matched_line(int *wtotal, const char *line, int wlimit, int col_tab_align,
4722 WINDOW *window, int skipcol, regmatch_t *regmatch)
4723 {
4724 const struct got_error *err = NULL;
4725 char *exstr = NULL;
4726 wchar_t *wline = NULL;
4727 int rme, rms, n, width, scrollx;
4728 int width0 = 0, width1 = 0, width2 = 0;
4729 char *seg0 = NULL, *seg1 = NULL, *seg2 = NULL;
4730
4731 *wtotal = 0;
4732
4733 rms = regmatch->rm_so;
4734 rme = regmatch->rm_eo;
4735
4736 err = expand_tab(&exstr, line);
4737 if (err)
4738 return err;
4739
4740 /* Split the line into 3 segments, according to match offsets. */
4741 seg0 = strndup(exstr, rms);
4742 if (seg0 == NULL) {
4743 err = got_error_from_errno("strndup");
4744 goto done;
4745 }
4746 seg1 = strndup(exstr + rms, rme - rms);
4747 if (seg1 == NULL) {
4748 err = got_error_from_errno("strndup");
4749 goto done;
4750 }
4751 seg2 = strdup(exstr + rme);
4752 if (seg2 == NULL) {
4753 err = got_error_from_errno("strndup");
4754 goto done;
4755 }
4756
4757 /* draw up to matched token if we haven't scrolled past it */
4758 err = format_line(&wline, &width0, NULL, seg0, 0, wlimit,
4759 col_tab_align, 1);
4760 if (err)
4761 goto done;
4762 n = MAX(width0 - skipcol, 0);
4763 if (n) {
4764 free(wline);
4765 err = format_line(&wline, &width, &scrollx, seg0, skipcol,
4766 wlimit, col_tab_align, 1);
4767 if (err)
4768 goto done;
4769 waddwstr(window, &wline[scrollx]);
4770 wlimit -= width;
4771 *wtotal += width;
4772 }
4773
4774 if (wlimit > 0) {
4775 int i = 0, w = 0;
4776 size_t wlen;
4777
4778 free(wline);
4779 err = format_line(&wline, &width1, NULL, seg1, 0, wlimit,
4780 col_tab_align, 1);
4781 if (err)
4782 goto done;
4783 wlen = wcslen(wline);
4784 while (i < wlen) {
4785 width = wcwidth(wline[i]);
4786 if (width == -1) {
4787 /* should not happen, tabs are expanded */
4788 err = got_error(GOT_ERR_RANGE);
4789 goto done;
4790 }
4791 if (width0 + w + width > skipcol)
4792 break;
4793 w += width;
4794 i++;
4795 }
4796 /* draw (visible part of) matched token (if scrolled into it) */
4797 if (width1 - w > 0) {
4798 wattron(window, A_STANDOUT);
4799 waddwstr(window, &wline[i]);
4800 wattroff(window, A_STANDOUT);
4801 wlimit -= (width1 - w);
4802 *wtotal += (width1 - w);
4803 }
4804 }
4805
4806 if (wlimit > 0) { /* draw rest of line */
4807 free(wline);
4808 if (skipcol > width0 + width1) {
4809 err = format_line(&wline, &width2, &scrollx, seg2,
4810 skipcol - (width0 + width1), wlimit,
4811 col_tab_align, 1);
4812 if (err)
4813 goto done;
4814 waddwstr(window, &wline[scrollx]);
4815 } else {
4816 err = format_line(&wline, &width2, NULL, seg2, 0,
4817 wlimit, col_tab_align, 1);
4818 if (err)
4819 goto done;
4820 waddwstr(window, wline);
4821 }
4822 *wtotal += width2;
4823 }
4824 done:
4825 free(wline);
4826 free(exstr);
4827 free(seg0);
4828 free(seg1);
4829 free(seg2);
4830 return err;
4831 }
4832
4833 static int
4834 gotoline(struct tog_view *view, int *lineno, int *nprinted)
4835 {
4836 FILE *f = NULL;
4837 int *eof, *first, *selected;
4838
4839 if (view->type == TOG_VIEW_DIFF) {
4840 struct tog_diff_view_state *s = &view->state.diff;
4841
4842 first = &s->first_displayed_line;
4843 selected = first;
4844 eof = &s->eof;
4845 f = s->f;
4846 } else if (view->type == TOG_VIEW_HELP) {
4847 struct tog_help_view_state *s = &view->state.help;
4848
4849 first = &s->first_displayed_line;
4850 selected = first;
4851 eof = &s->eof;
4852 f = s->f;
4853 } else if (view->type == TOG_VIEW_BLAME) {
4854 struct tog_blame_view_state *s = &view->state.blame;
4855
4856 first = &s->first_displayed_line;
4857 selected = &s->selected_line;
4858 eof = &s->eof;
4859 f = s->blame.f;
4860 } else
4861 return 0;
4862
4863 /* Center gline in the middle of the page like vi(1). */
4864 if (*lineno < view->gline - (view->nlines - 3) / 2)
4865 return 0;
4866 if (*first != 1 && (*lineno > view->gline - (view->nlines - 3) / 2)) {
4867 rewind(f);
4868 *eof = 0;
4869 *first = 1;
4870 *lineno = 0;
4871 *nprinted = 0;
4872 return 0;
4873 }
4874
4875 *selected = view->gline <= (view->nlines - 3) / 2 ?
4876 view->gline : (view->nlines - 3) / 2 + 1;
4877 view->gline = 0;
4878
4879 return 1;
4880 }
4881
4882 static const struct got_error *
4883 draw_file(struct tog_view *view, const char *header)
4884 {
4885 struct tog_diff_view_state *s = &view->state.diff;
4886 regmatch_t *regmatch = &view->regmatch;
4887 const struct got_error *err;
4888 int nprinted = 0;
4889 char *line;
4890 size_t linesize = 0;
4891 ssize_t linelen;
4892 wchar_t *wline;
4893 int width;
4894 int max_lines = view->nlines;
4895 int nlines = s->nlines;
4896 off_t line_offset;
4897
4898 s->lineno = s->first_displayed_line - 1;
4899 line_offset = s->lines[s->first_displayed_line - 1].offset;
4900 if (fseeko(s->f, line_offset, SEEK_SET) == -1)
4901 return got_error_from_errno("fseek");
4902
4903 werase(view->window);
4904
4905 if (view->gline > s->nlines - 1)
4906 view->gline = s->nlines - 1;
4907
4908 if (header) {
4909 int ln = view->gline ? view->gline <= (view->nlines - 3) / 2 ?
4910 1 : view->gline - (view->nlines - 3) / 2 :
4911 s->lineno + s->selected_line;
4912
4913 if (asprintf(&line, "[%d/%d] %s", ln, nlines, header) == -1)
4914 return got_error_from_errno("asprintf");
4915 err = format_line(&wline, &width, NULL, line, 0, view->ncols,
4916 0, 0);
4917 free(line);
4918 if (err)
4919 return err;
4920
4921 if (view_needs_focus_indication(view))
4922 wstandout(view->window);
4923 waddwstr(view->window, wline);
4924 free(wline);
4925 wline = NULL;
4926 while (width++ < view->ncols)
4927 waddch(view->window, ' ');
4928 if (view_needs_focus_indication(view))
4929 wstandend(view->window);
4930
4931 if (max_lines <= 1)
4932 return NULL;
4933 max_lines--;
4934 }
4935
4936 s->eof = 0;
4937 view->maxx = 0;
4938 line = NULL;
4939 while (max_lines > 0 && nprinted < max_lines) {
4940 enum got_diff_line_type linetype;
4941 attr_t attr = 0;
4942
4943 linelen = getline(&line, &linesize, s->f);
4944 if (linelen == -1) {
4945 if (feof(s->f)) {
4946 s->eof = 1;
4947 break;
4948 }
4949 free(line);
4950 return got_ferror(s->f, GOT_ERR_IO);
4951 }
4952
4953 if (++s->lineno < s->first_displayed_line)
4954 continue;
4955 if (view->gline && !gotoline(view, &s->lineno, &nprinted))
4956 continue;
4957 if (s->lineno == view->hiline)
4958 attr = A_STANDOUT;
4959
4960 /* Set view->maxx based on full line length. */
4961 err = format_line(&wline, &width, NULL, line, 0, INT_MAX, 0,
4962 view->x ? 1 : 0);
4963 if (err) {
4964 free(line);
4965 return err;
4966 }
4967 view->maxx = MAX(view->maxx, width);
4968 free(wline);
4969 wline = NULL;
4970
4971 linetype = s->lines[s->lineno].type;
4972 if (linetype > GOT_DIFF_LINE_LOGMSG &&
4973 linetype < GOT_DIFF_LINE_CONTEXT)
4974 attr |= COLOR_PAIR(linetype);
4975 if (attr)
4976 wattron(view->window, attr);
4977 if (s->first_displayed_line + nprinted == s->matched_line &&
4978 regmatch->rm_so >= 0 && regmatch->rm_so < regmatch->rm_eo) {
4979 err = add_matched_line(&width, line, view->ncols, 0,
4980 view->window, view->x, regmatch);
4981 if (err) {
4982 free(line);
4983 return err;
4984 }
4985 } else {
4986 int skip;
4987 err = format_line(&wline, &width, &skip, line,
4988 view->x, view->ncols, 0, view->x ? 1 : 0);
4989 if (err) {
4990 free(line);
4991 return err;
4992 }
4993 waddwstr(view->window, &wline[skip]);
4994 free(wline);
4995 wline = NULL;
4996 }
4997 if (s->lineno == view->hiline) {
4998 /* highlight full gline length */
4999 while (width++ < view->ncols)
5000 waddch(view->window, ' ');
5001 } else {
5002 if (width <= view->ncols - 1)
5003 waddch(view->window, '\n');
5004 }
5005 if (attr)
5006 wattroff(view->window, attr);
5007 if (++nprinted == 1)
5008 s->first_displayed_line = s->lineno;
5009 }
5010 free(line);
5011 if (nprinted >= 1)
5012 s->last_displayed_line = s->first_displayed_line +
5013 (nprinted - 1);
5014 else
5015 s->last_displayed_line = s->first_displayed_line;
5016
5017 view_border(view);
5018
5019 if (s->eof) {
5020 while (nprinted < view->nlines) {
5021 waddch(view->window, '\n');
5022 nprinted++;
5023 }
5024
5025 err = format_line(&wline, &width, NULL, TOG_EOF_STRING, 0,
5026 view->ncols, 0, 0);
5027 if (err) {
5028 return err;
5029 }
5030
5031 wstandout(view->window);
5032 waddwstr(view->window, wline);
5033 free(wline);
5034 wline = NULL;
5035 wstandend(view->window);
5036 }
5037
5038 return NULL;
5039 }
5040
5041 static char *
5042 get_datestr(time_t *time, char *datebuf)
5043 {
5044 struct tm mytm, *tm;
5045 char *p, *s;
5046
5047 tm = gmtime_r(time, &mytm);
5048 if (tm == NULL)
5049 return NULL;
5050 s = asctime_r(tm, datebuf);
5051 if (s == NULL)
5052 return NULL;
5053 p = strchr(s, '\n');
5054 if (p)
5055 *p = '\0';
5056 return s;
5057 }
5058
5059 static const struct got_error *
5060 add_line_metadata(struct got_diff_line **lines, size_t *nlines,
5061 off_t off, uint8_t type)
5062 {
5063 struct got_diff_line *p;
5064
5065 p = reallocarray(*lines, *nlines + 1, sizeof(**lines));
5066 if (p == NULL)
5067 return got_error_from_errno("reallocarray");
5068 *lines = p;
5069 (*lines)[*nlines].offset = off;
5070 (*lines)[*nlines].type = type;
5071 (*nlines)++;
5072
5073 return NULL;
5074 }
5075
5076 static const struct got_error *
5077 cat_diff(FILE *dst, FILE *src, struct got_diff_line **d_lines, size_t *d_nlines,
5078 struct got_diff_line *s_lines, size_t s_nlines)
5079 {
5080 struct got_diff_line *p;
5081 char buf[BUFSIZ];
5082 size_t i, r;
5083
5084 if (fseeko(src, 0L, SEEK_SET) == -1)
5085 return got_error_from_errno("fseeko");
5086
5087 for (;;) {
5088 r = fread(buf, 1, sizeof(buf), src);
5089 if (r == 0) {
5090 if (ferror(src))
5091 return got_error_from_errno("fread");
5092 if (feof(src))
5093 break;
5094 }
5095 if (fwrite(buf, 1, r, dst) != r)
5096 return got_ferror(dst, GOT_ERR_IO);
5097 }
5098
5099 if (s_nlines == 0 && *d_nlines == 0)
5100 return NULL;
5101
5102 /*
5103 * If commit info was in dst, increment line offsets
5104 * of the appended diff content, but skip s_lines[0]
5105 * because offset zero is already in *d_lines.
5106 */
5107 if (*d_nlines > 0) {
5108 for (i = 1; i < s_nlines; ++i)
5109 s_lines[i].offset += (*d_lines)[*d_nlines - 1].offset;
5110
5111 if (s_nlines > 0) {
5112 --s_nlines;
5113 ++s_lines;
5114 }
5115 }
5116
5117 p = reallocarray(*d_lines, *d_nlines + s_nlines, sizeof(*p));
5118 if (p == NULL) {
5119 /* d_lines is freed in close_diff_view() */
5120 return got_error_from_errno("reallocarray");
5121 }
5122
5123 *d_lines = p;
5124
5125 memcpy(*d_lines + *d_nlines, s_lines, s_nlines * sizeof(*s_lines));
5126 *d_nlines += s_nlines;
5127
5128 return NULL;
5129 }
5130
5131 static const struct got_error *
5132 write_commit_info(struct got_diff_line **lines, size_t *nlines,
5133 struct got_object_id *commit_id, struct got_reflist_head *refs,
5134 struct got_repository *repo, int ignore_ws, int force_text_diff,
5135 struct got_diffstat_cb_arg *dsa, FILE *outfile)
5136 {
5137 const struct got_error *err = NULL;
5138 char datebuf[26], *datestr;
5139 struct got_commit_object *commit;
5140 char *id_str = NULL, *logmsg = NULL, *s = NULL, *line;
5141 time_t committer_time;
5142 const char *author, *committer;
5143 char *refs_str = NULL;
5144 struct got_pathlist_entry *pe;
5145 off_t outoff = 0;
5146 int n;
5147
5148 err = build_refs_str(&refs_str, refs, commit_id, repo);
5149 if (err)
5150 return err;
5151
5152 err = got_object_open_as_commit(&commit, repo, commit_id);
5153 if (err)
5154 return err;
5155
5156 err = got_object_id_str(&id_str, commit_id);
5157 if (err) {
5158 err = got_error_from_errno("got_object_id_str");
5159 goto done;
5160 }
5161
5162 err = add_line_metadata(lines, nlines, 0, GOT_DIFF_LINE_NONE);
5163 if (err)
5164 goto done;
5165
5166 n = fprintf(outfile, "commit %s%s%s%s\n", id_str, refs_str ? " (" : "",
5167 refs_str ? refs_str : "", refs_str ? ")" : "");
5168 if (n < 0) {
5169 err = got_error_from_errno("fprintf");
5170 goto done;
5171 }
5172 outoff += n;
5173 err = add_line_metadata(lines, nlines, outoff, GOT_DIFF_LINE_META);
5174 if (err)
5175 goto done;
5176
5177 n = fprintf(outfile, "from: %s\n",
5178 got_object_commit_get_author(commit));
5179 if (n < 0) {
5180 err = got_error_from_errno("fprintf");
5181 goto done;
5182 }
5183 outoff += n;
5184 err = add_line_metadata(lines, nlines, outoff, GOT_DIFF_LINE_AUTHOR);
5185 if (err)
5186 goto done;
5187
5188 author = got_object_commit_get_author(commit);
5189 committer = got_object_commit_get_committer(commit);
5190 if (strcmp(author, committer) != 0) {
5191 n = fprintf(outfile, "via: %s\n", committer);
5192 if (n < 0) {
5193 err = got_error_from_errno("fprintf");
5194 goto done;
5195 }
5196 outoff += n;
5197 err = add_line_metadata(lines, nlines, outoff,
5198 GOT_DIFF_LINE_AUTHOR);
5199 if (err)
5200 goto done;
5201 }
5202 committer_time = got_object_commit_get_committer_time(commit);
5203 datestr = get_datestr(&committer_time, datebuf);
5204 if (datestr) {
5205 n = fprintf(outfile, "date: %s UTC\n", datestr);
5206 if (n < 0) {
5207 err = got_error_from_errno("fprintf");
5208 goto done;
5209 }
5210 outoff += n;
5211 err = add_line_metadata(lines, nlines, outoff,
5212 GOT_DIFF_LINE_DATE);
5213 if (err)
5214 goto done;
5215 }
5216 if (got_object_commit_get_nparents(commit) > 1) {
5217 const struct got_object_id_queue *parent_ids;
5218 struct got_object_qid *qid;
5219 int pn = 1;
5220 parent_ids = got_object_commit_get_parent_ids(commit);
5221 STAILQ_FOREACH(qid, parent_ids, entry) {
5222 err = got_object_id_str(&id_str, &qid->id);
5223 if (err)
5224 goto done;
5225 n = fprintf(outfile, "parent %d: %s\n", pn++, id_str);
5226 if (n < 0) {
5227 err = got_error_from_errno("fprintf");
5228 goto done;
5229 }
5230 outoff += n;
5231 err = add_line_metadata(lines, nlines, outoff,
5232 GOT_DIFF_LINE_META);
5233 if (err)
5234 goto done;
5235 free(id_str);
5236 id_str = NULL;
5237 }
5238 }
5239
5240 err = got_object_commit_get_logmsg(&logmsg, commit);
5241 if (err)
5242 goto done;
5243 s = logmsg;
5244 while ((line = strsep(&s, "\n")) != NULL) {
5245 n = fprintf(outfile, "%s\n", line);
5246 if (n < 0) {
5247 err = got_error_from_errno("fprintf");
5248 goto done;
5249 }
5250 outoff += n;
5251 err = add_line_metadata(lines, nlines, outoff,
5252 GOT_DIFF_LINE_LOGMSG);
5253 if (err)
5254 goto done;
5255 }
5256
5257 TAILQ_FOREACH(pe, dsa->paths, entry) {
5258 struct got_diff_changed_path *cp = pe->data;
5259 int pad = dsa->max_path_len - pe->path_len + 1;
5260
5261 n = fprintf(outfile, "%c %s%*c | %*d+ %*d-\n", cp->status,
5262 pe->path, pad, ' ', dsa->add_cols + 1, cp->add,
5263 dsa->rm_cols + 1, cp->rm);
5264 if (n < 0) {
5265 err = got_error_from_errno("fprintf");
5266 goto done;
5267 }
5268 outoff += n;
5269 err = add_line_metadata(lines, nlines, outoff,
5270 GOT_DIFF_LINE_CHANGES);
5271 if (err)
5272 goto done;
5273 }
5274
5275 fputc('\n', outfile);
5276 outoff++;
5277 err = add_line_metadata(lines, nlines, outoff, GOT_DIFF_LINE_NONE);
5278 if (err)
5279 goto done;
5280
5281 n = fprintf(outfile,
5282 "%d file%s changed, %d insertion%s(+), %d deletion%s(-)\n",
5283 dsa->nfiles, dsa->nfiles > 1 ? "s" : "", dsa->ins,
5284 dsa->ins != 1 ? "s" : "", dsa->del, dsa->del != 1 ? "s" : "");
5285 if (n < 0) {
5286 err = got_error_from_errno("fprintf");
5287 goto done;
5288 }
5289 outoff += n;
5290 err = add_line_metadata(lines, nlines, outoff, GOT_DIFF_LINE_NONE);
5291 if (err)
5292 goto done;
5293
5294 fputc('\n', outfile);
5295 outoff++;
5296 err = add_line_metadata(lines, nlines, outoff, GOT_DIFF_LINE_NONE);
5297 done:
5298 free(id_str);
5299 free(logmsg);
5300 free(refs_str);
5301 got_object_commit_close(commit);
5302 if (err) {
5303 free(*lines);
5304 *lines = NULL;
5305 *nlines = 0;
5306 }
5307 return err;
5308 }
5309
5310 static const struct got_error *
5311 create_diff(struct tog_diff_view_state *s)
5312 {
5313 const struct got_error *err = NULL;
5314 FILE *f = NULL, *tmp_diff_file = NULL;
5315 int obj_type;
5316 struct got_diff_line *lines = NULL;
5317 struct got_pathlist_head changed_paths;
5318
5319 TAILQ_INIT(&changed_paths);
5320
5321 free(s->lines);
5322 s->lines = malloc(sizeof(*s->lines));
5323 if (s->lines == NULL)
5324 return got_error_from_errno("malloc");
5325 s->nlines = 0;
5326
5327 f = got_opentemp();
5328 if (f == NULL) {
5329 err = got_error_from_errno("got_opentemp");
5330 goto done;
5331 }
5332 tmp_diff_file = got_opentemp();
5333 if (tmp_diff_file == NULL) {
5334 err = got_error_from_errno("got_opentemp");
5335 goto done;
5336 }
5337 if (s->f && fclose(s->f) == EOF) {
5338 err = got_error_from_errno("fclose");
5339 goto done;
5340 }
5341 s->f = f;
5342
5343 if (s->id1)
5344 err = got_object_get_type(&obj_type, s->repo, s->id1);
5345 else
5346 err = got_object_get_type(&obj_type, s->repo, s->id2);
5347 if (err)
5348 goto done;
5349
5350 switch (obj_type) {
5351 case GOT_OBJ_TYPE_BLOB:
5352 err = got_diff_objects_as_blobs(&s->lines, &s->nlines,
5353 s->f1, s->f2, s->fd1, s->fd2, s->id1, s->id2,
5354 s->label1, s->label2, tog_diff_algo, s->diff_context,
5355 s->ignore_whitespace, s->force_text_diff, NULL, s->repo,
5356 s->f);
5357 break;
5358 case GOT_OBJ_TYPE_TREE:
5359 err = got_diff_objects_as_trees(&s->lines, &s->nlines,
5360 s->f1, s->f2, s->fd1, s->fd2, s->id1, s->id2, NULL, "", "",
5361 tog_diff_algo, s->diff_context, s->ignore_whitespace,
5362 s->force_text_diff, NULL, s->repo, s->f);
5363 break;
5364 case GOT_OBJ_TYPE_COMMIT: {
5365 const struct got_object_id_queue *parent_ids;
5366 struct got_object_qid *pid;
5367 struct got_commit_object *commit2;
5368 struct got_reflist_head *refs;
5369 size_t nlines = 0;
5370 struct got_diffstat_cb_arg dsa = {
5371 0, 0, 0, 0, 0, 0,
5372 &changed_paths,
5373 s->ignore_whitespace,
5374 s->force_text_diff,
5375 tog_diff_algo
5376 };
5377
5378 lines = malloc(sizeof(*lines));
5379 if (lines == NULL) {
5380 err = got_error_from_errno("malloc");
5381 goto done;
5382 }
5383
5384 /* build diff first in tmp file then append to commit info */
5385 err = got_diff_objects_as_commits(&lines, &nlines,
5386 s->f1, s->f2, s->fd1, s->fd2, s->id1, s->id2, NULL,
5387 tog_diff_algo, s->diff_context, s->ignore_whitespace,
5388 s->force_text_diff, &dsa, s->repo, tmp_diff_file);
5389 if (err)
5390 break;
5391
5392 err = got_object_open_as_commit(&commit2, s->repo, s->id2);
5393 if (err)
5394 goto done;
5395 refs = got_reflist_object_id_map_lookup(tog_refs_idmap, s->id2);
5396 /* Show commit info if we're diffing to a parent/root commit. */
5397 if (s->id1 == NULL) {
5398 err = write_commit_info(&s->lines, &s->nlines, s->id2,
5399 refs, s->repo, s->ignore_whitespace,
5400 s->force_text_diff, &dsa, s->f);
5401 if (err)
5402 goto done;
5403 } else {
5404 parent_ids = got_object_commit_get_parent_ids(commit2);
5405 STAILQ_FOREACH(pid, parent_ids, entry) {
5406 if (got_object_id_cmp(s->id1, &pid->id) == 0) {
5407 err = write_commit_info(&s->lines,
5408 &s->nlines, s->id2, refs, s->repo,
5409 s->ignore_whitespace,
5410 s->force_text_diff, &dsa, s->f);
5411 if (err)
5412 goto done;
5413 break;
5414 }
5415 }
5416 }
5417 got_object_commit_close(commit2);
5418
5419 err = cat_diff(s->f, tmp_diff_file, &s->lines, &s->nlines,
5420 lines, nlines);
5421 break;
5422 }
5423 default:
5424 err = got_error(GOT_ERR_OBJ_TYPE);
5425 break;
5426 }
5427 done:
5428 free(lines);
5429 got_pathlist_free(&changed_paths, GOT_PATHLIST_FREE_ALL);
5430 if (s->f && fflush(s->f) != 0 && err == NULL)
5431 err = got_error_from_errno("fflush");
5432 if (tmp_diff_file && fclose(tmp_diff_file) == EOF && err == NULL)
5433 err = got_error_from_errno("fclose");
5434 return err;
5435 }
5436
5437 static void
5438 diff_view_indicate_progress(struct tog_view *view)
5439 {
5440 mvwaddstr(view->window, 0, 0, "diffing...");
5441 update_panels();
5442 doupdate();
5443 }
5444
5445 static const struct got_error *
5446 search_start_diff_view(struct tog_view *view)
5447 {
5448 struct tog_diff_view_state *s = &view->state.diff;
5449
5450 s->matched_line = 0;
5451 return NULL;
5452 }
5453
5454 static void
5455 search_setup_diff_view(struct tog_view *view, FILE **f, off_t **line_offsets,
5456 size_t *nlines, int **first, int **last, int **match, int **selected)
5457 {
5458 struct tog_diff_view_state *s = &view->state.diff;
5459
5460 *f = s->f;
5461 *nlines = s->nlines;
5462 *line_offsets = NULL;
5463 *match = &s->matched_line;
5464 *first = &s->first_displayed_line;
5465 *last = &s->last_displayed_line;
5466 *selected = &s->selected_line;
5467 }
5468
5469 static const struct got_error *
5470 search_next_view_match(struct tog_view *view)
5471 {
5472 const struct got_error *err = NULL;
5473 FILE *f;
5474 int lineno;
5475 char *line = NULL;
5476 size_t linesize = 0;
5477 ssize_t linelen;
5478 off_t *line_offsets;
5479 size_t nlines = 0;
5480 int *first, *last, *match, *selected;
5481
5482 if (!view->search_setup)
5483 return got_error_msg(GOT_ERR_NOT_IMPL,
5484 "view search not supported");
5485 view->search_setup(view, &f, &line_offsets, &nlines, &first, &last,
5486 &match, &selected);
5487
5488 if (!view->searching) {
5489 view->search_next_done = TOG_SEARCH_HAVE_MORE;
5490 return NULL;
5491 }
5492
5493 if (*match) {
5494 if (view->searching == TOG_SEARCH_FORWARD)
5495 lineno = *first + 1;
5496 else
5497 lineno = *first - 1;
5498 } else
5499 lineno = *first - 1 + *selected;
5500
5501 while (1) {
5502 off_t offset;
5503
5504 if (lineno <= 0 || lineno > nlines) {
5505 if (*match == 0) {
5506 view->search_next_done = TOG_SEARCH_HAVE_MORE;
5507 break;
5508 }
5509
5510 if (view->searching == TOG_SEARCH_FORWARD)
5511 lineno = 1;
5512 else
5513 lineno = nlines;
5514 }
5515
5516 offset = view->type == TOG_VIEW_DIFF ?
5517 view->state.diff.lines[lineno - 1].offset :
5518 line_offsets[lineno - 1];
5519 if (fseeko(f, offset, SEEK_SET) != 0) {
5520 free(line);
5521 return got_error_from_errno("fseeko");
5522 }
5523 linelen = getline(&line, &linesize, f);
5524 if (linelen != -1) {
5525 char *exstr;
5526 err = expand_tab(&exstr, line);
5527 if (err)
5528 break;
5529 if (match_line(exstr, &view->regex, 1,
5530 &view->regmatch)) {
5531 view->search_next_done = TOG_SEARCH_HAVE_MORE;
5532 *match = lineno;
5533 free(exstr);
5534 break;
5535 }
5536 free(exstr);
5537 }
5538 if (view->searching == TOG_SEARCH_FORWARD)
5539 lineno++;
5540 else
5541 lineno--;
5542 }
5543 free(line);
5544
5545 if (*match) {
5546 *first = *match;
5547 *selected = 1;
5548 }
5549
5550 return err;
5551 }
5552
5553 static const struct got_error *
5554 close_diff_view(struct tog_view *view)
5555 {
5556 const struct got_error *err = NULL;
5557 struct tog_diff_view_state *s = &view->state.diff;
5558
5559 free(s->id1);
5560 s->id1 = NULL;
5561 free(s->id2);
5562 s->id2 = NULL;
5563 if (s->f && fclose(s->f) == EOF)
5564 err = got_error_from_errno("fclose");
5565 s->f = NULL;
5566 if (s->f1 && fclose(s->f1) == EOF && err == NULL)
5567 err = got_error_from_errno("fclose");
5568 s->f1 = NULL;
5569 if (s->f2 && fclose(s->f2) == EOF && err == NULL)
5570 err = got_error_from_errno("fclose");
5571 s->f2 = NULL;
5572 if (s->fd1 != -1 && close(s->fd1) == -1 && err == NULL)
5573 err = got_error_from_errno("close");
5574 s->fd1 = -1;
5575 if (s->fd2 != -1 && close(s->fd2) == -1 && err == NULL)
5576 err = got_error_from_errno("close");
5577 s->fd2 = -1;
5578 free(s->lines);
5579 s->lines = NULL;
5580 s->nlines = 0;
5581 return err;
5582 }
5583
5584 static const struct got_error *
5585 open_diff_view(struct tog_view *view, struct got_object_id *id1,
5586 struct got_object_id *id2, const char *label1, const char *label2,
5587 int diff_context, int ignore_whitespace, int force_text_diff,
5588 struct tog_view *parent_view, struct got_repository *repo)
5589 {
5590 const struct got_error *err;
5591 struct tog_diff_view_state *s = &view->state.diff;
5592
5593 memset(s, 0, sizeof(*s));
5594 s->fd1 = -1;
5595 s->fd2 = -1;
5596
5597 if (id1 != NULL && id2 != NULL) {
5598 int type1, type2;
5599
5600 err = got_object_get_type(&type1, repo, id1);
5601 if (err)
5602 goto done;
5603 err = got_object_get_type(&type2, repo, id2);
5604 if (err)
5605 goto done;
5606
5607 if (type1 != type2) {
5608 err = got_error(GOT_ERR_OBJ_TYPE);
5609 goto done;
5610 }
5611 }
5612 s->first_displayed_line = 1;
5613 s->last_displayed_line = view->nlines;
5614 s->selected_line = 1;
5615 s->repo = repo;
5616 s->id1 = id1;
5617 s->id2 = id2;
5618 s->label1 = label1;
5619 s->label2 = label2;
5620
5621 if (id1) {
5622 s->id1 = got_object_id_dup(id1);
5623 if (s->id1 == NULL) {
5624 err = got_error_from_errno("got_object_id_dup");
5625 goto done;
5626 }
5627 } else
5628 s->id1 = NULL;
5629
5630 s->id2 = got_object_id_dup(id2);
5631 if (s->id2 == NULL) {
5632 err = got_error_from_errno("got_object_id_dup");
5633 goto done;
5634 }
5635
5636 s->f1 = got_opentemp();
5637 if (s->f1 == NULL) {
5638 err = got_error_from_errno("got_opentemp");
5639 goto done;
5640 }
5641
5642 s->f2 = got_opentemp();
5643 if (s->f2 == NULL) {
5644 err = got_error_from_errno("got_opentemp");
5645 goto done;
5646 }
5647
5648 s->fd1 = got_opentempfd();
5649 if (s->fd1 == -1) {
5650 err = got_error_from_errno("got_opentempfd");
5651 goto done;
5652 }
5653
5654 s->fd2 = got_opentempfd();
5655 if (s->fd2 == -1) {
5656 err = got_error_from_errno("got_opentempfd");
5657 goto done;
5658 }
5659
5660 s->diff_context = diff_context;
5661 s->ignore_whitespace = ignore_whitespace;
5662 s->force_text_diff = force_text_diff;
5663 s->parent_view = parent_view;
5664 s->repo = repo;
5665
5666 if (has_colors() && getenv("TOG_COLORS") != NULL && !using_mock_io) {
5667 int rc;
5668
5669 rc = init_pair(GOT_DIFF_LINE_MINUS,
5670 get_color_value("TOG_COLOR_DIFF_MINUS"), -1);
5671 if (rc != ERR)
5672 rc = init_pair(GOT_DIFF_LINE_PLUS,
5673 get_color_value("TOG_COLOR_DIFF_PLUS"), -1);
5674 if (rc != ERR)
5675 rc = init_pair(GOT_DIFF_LINE_HUNK,
5676 get_color_value("TOG_COLOR_DIFF_CHUNK_HEADER"), -1);
5677 if (rc != ERR)
5678 rc = init_pair(GOT_DIFF_LINE_META,
5679 get_color_value("TOG_COLOR_DIFF_META"), -1);
5680 if (rc != ERR)
5681 rc = init_pair(GOT_DIFF_LINE_CHANGES,
5682 get_color_value("TOG_COLOR_DIFF_META"), -1);
5683 if (rc != ERR)
5684 rc = init_pair(GOT_DIFF_LINE_BLOB_MIN,
5685 get_color_value("TOG_COLOR_DIFF_META"), -1);
5686 if (rc != ERR)
5687 rc = init_pair(GOT_DIFF_LINE_BLOB_PLUS,
5688 get_color_value("TOG_COLOR_DIFF_META"), -1);
5689 if (rc != ERR)
5690 rc = init_pair(GOT_DIFF_LINE_AUTHOR,
5691 get_color_value("TOG_COLOR_AUTHOR"), -1);
5692 if (rc != ERR)
5693 rc = init_pair(GOT_DIFF_LINE_DATE,
5694 get_color_value("TOG_COLOR_DATE"), -1);
5695 if (rc == ERR) {
5696 err = got_error(GOT_ERR_RANGE);
5697 goto done;
5698 }
5699 }
5700
5701 if (parent_view && parent_view->type == TOG_VIEW_LOG &&
5702 view_is_splitscreen(view))
5703 show_log_view(parent_view); /* draw border */
5704 diff_view_indicate_progress(view);
5705
5706 err = create_diff(s);
5707
5708 view->show = show_diff_view;
5709 view->input = input_diff_view;
5710 view->reset = reset_diff_view;
5711 view->close = close_diff_view;
5712 view->search_start = search_start_diff_view;
5713 view->search_setup = search_setup_diff_view;
5714 view->search_next = search_next_view_match;
5715 done:
5716 if (err) {
5717 if (view->close == NULL)
5718 close_diff_view(view);
5719 view_close(view);
5720 }
5721 return err;
5722 }
5723
5724 static const struct got_error *
5725 show_diff_view(struct tog_view *view)
5726 {
5727 const struct got_error *err;
5728 struct tog_diff_view_state *s = &view->state.diff;
5729 char *id_str1 = NULL, *id_str2, *header;
5730 const char *label1, *label2;
5731
5732 if (s->id1) {
5733 err = got_object_id_str(&id_str1, s->id1);
5734 if (err)
5735 return err;
5736 label1 = s->label1 ? s->label1 : id_str1;
5737 } else
5738 label1 = "/dev/null";
5739
5740 err = got_object_id_str(&id_str2, s->id2);
5741 if (err)
5742 return err;
5743 label2 = s->label2 ? s->label2 : id_str2;
5744
5745 if (asprintf(&header, "diff %s %s", label1, label2) == -1) {
5746 err = got_error_from_errno("asprintf");
5747 free(id_str1);
5748 free(id_str2);
5749 return err;
5750 }
5751 free(id_str1);
5752 free(id_str2);
5753
5754 err = draw_file(view, header);
5755 free(header);
5756 return err;
5757 }
5758
5759 static const struct got_error *
5760 set_selected_commit(struct tog_diff_view_state *s,
5761 struct commit_queue_entry *entry)
5762 {
5763 const struct got_error *err;
5764 const struct got_object_id_queue *parent_ids;
5765 struct got_commit_object *selected_commit;
5766 struct got_object_qid *pid;
5767
5768 free(s->id2);
5769 s->id2 = got_object_id_dup(entry->id);
5770 if (s->id2 == NULL)
5771 return got_error_from_errno("got_object_id_dup");
5772
5773 err = got_object_open_as_commit(&selected_commit, s->repo, entry->id);
5774 if (err)
5775 return err;
5776 parent_ids = got_object_commit_get_parent_ids(selected_commit);
5777 free(s->id1);
5778 pid = STAILQ_FIRST(parent_ids);
5779 s->id1 = pid ? got_object_id_dup(&pid->id) : NULL;
5780 got_object_commit_close(selected_commit);
5781 return NULL;
5782 }
5783
5784 static const struct got_error *
5785 reset_diff_view(struct tog_view *view)
5786 {
5787 struct tog_diff_view_state *s = &view->state.diff;
5788
5789 view->count = 0;
5790 wclear(view->window);
5791 s->first_displayed_line = 1;
5792 s->last_displayed_line = view->nlines;
5793 s->matched_line = 0;
5794 diff_view_indicate_progress(view);
5795 return create_diff(s);
5796 }
5797
5798 static void
5799 diff_prev_index(struct tog_diff_view_state *s, enum got_diff_line_type type)
5800 {
5801 int start, i;
5802
5803 i = start = s->first_displayed_line - 1;
5804
5805 while (s->lines[i].type != type) {
5806 if (i == 0)
5807 i = s->nlines - 1;
5808 if (--i == start)
5809 return; /* do nothing, requested type not in file */
5810 }
5811
5812 s->selected_line = 1;
5813 s->first_displayed_line = i;
5814 }
5815
5816 static void
5817 diff_next_index(struct tog_diff_view_state *s, enum got_diff_line_type type)
5818 {
5819 int start, i;
5820
5821 i = start = s->first_displayed_line + 1;
5822
5823 while (s->lines[i].type != type) {
5824 if (i == s->nlines - 1)
5825 i = 0;
5826 if (++i == start)
5827 return; /* do nothing, requested type not in file */
5828 }
5829
5830 s->selected_line = 1;
5831 s->first_displayed_line = i;
5832 }
5833
5834 static struct got_object_id *get_selected_commit_id(struct tog_blame_line *,
5835 int, int, int);
5836 static struct got_object_id *get_annotation_for_line(struct tog_blame_line *,
5837 int, int);
5838
5839 static const struct got_error *
5840 input_diff_view(struct tog_view **new_view, struct tog_view *view, int ch)
5841 {
5842 const struct got_error *err = NULL;
5843 struct tog_diff_view_state *s = &view->state.diff;
5844 struct tog_log_view_state *ls;
5845 struct commit_queue_entry *old_selected_entry;
5846 char *line = NULL;
5847 size_t linesize = 0;
5848 ssize_t linelen;
5849 int i, nscroll = view->nlines - 1, up = 0;
5850
5851 s->lineno = s->first_displayed_line - 1 + s->selected_line;
5852
5853 switch (ch) {
5854 case '0':
5855 case '$':
5856 case KEY_RIGHT:
5857 case 'l':
5858 case KEY_LEFT:
5859 case 'h':
5860 horizontal_scroll_input(view, ch);
5861 break;
5862 case 'a':
5863 case 'w':
5864 if (ch == 'a') {
5865 s->force_text_diff = !s->force_text_diff;
5866 view->action = s->force_text_diff ?
5867 "force ASCII text enabled" :
5868 "force ASCII text disabled";
5869 }
5870 else if (ch == 'w') {
5871 s->ignore_whitespace = !s->ignore_whitespace;
5872 view->action = s->ignore_whitespace ?
5873 "ignore whitespace enabled" :
5874 "ignore whitespace disabled";
5875 }
5876 err = reset_diff_view(view);
5877 break;
5878 case 'g':
5879 case KEY_HOME:
5880 s->first_displayed_line = 1;
5881 view->count = 0;
5882 break;
5883 case 'G':
5884 case KEY_END:
5885 view->count = 0;
5886 if (s->eof)
5887 break;
5888
5889 s->first_displayed_line = (s->nlines - view->nlines) + 2;
5890 s->eof = 1;
5891 break;
5892 case 'k':
5893 case KEY_UP:
5894 case CTRL('p'):
5895 if (s->first_displayed_line > 1)
5896 s->first_displayed_line--;
5897 else
5898 view->count = 0;
5899 break;
5900 case CTRL('u'):
5901 case 'u':
5902 nscroll /= 2;
5903 /* FALL THROUGH */
5904 case KEY_PPAGE:
5905 case CTRL('b'):
5906 case 'b':
5907 if (s->first_displayed_line == 1) {
5908 view->count = 0;
5909 break;
5910 }
5911 i = 0;
5912 while (i++ < nscroll && s->first_displayed_line > 1)
5913 s->first_displayed_line--;
5914 break;
5915 case 'j':
5916 case KEY_DOWN:
5917 case CTRL('n'):
5918 if (!s->eof)
5919 s->first_displayed_line++;
5920 else
5921 view->count = 0;
5922 break;
5923 case CTRL('d'):
5924 case 'd':
5925 nscroll /= 2;
5926 /* FALL THROUGH */
5927 case KEY_NPAGE:
5928 case CTRL('f'):
5929 case 'f':
5930 case ' ':
5931 if (s->eof) {
5932 view->count = 0;
5933 break;
5934 }
5935 i = 0;
5936 while (!s->eof && i++ < nscroll) {
5937 linelen = getline(&line, &linesize, s->f);
5938 s->first_displayed_line++;
5939 if (linelen == -1) {
5940 if (feof(s->f)) {
5941 s->eof = 1;
5942 } else
5943 err = got_ferror(s->f, GOT_ERR_IO);
5944 break;
5945 }
5946 }
5947 free(line);
5948 break;
5949 case '(':
5950 diff_prev_index(s, GOT_DIFF_LINE_BLOB_MIN);
5951 break;
5952 case ')':
5953 diff_next_index(s, GOT_DIFF_LINE_BLOB_MIN);
5954 break;
5955 case '{':
5956 diff_prev_index(s, GOT_DIFF_LINE_HUNK);
5957 break;
5958 case '}':
5959 diff_next_index(s, GOT_DIFF_LINE_HUNK);
5960 break;
5961 case '[':
5962 if (s->diff_context > 0) {
5963 s->diff_context--;
5964 s->matched_line = 0;
5965 diff_view_indicate_progress(view);
5966 err = create_diff(s);
5967 if (s->first_displayed_line + view->nlines - 1 >
5968 s->nlines) {
5969 s->first_displayed_line = 1;
5970 s->last_displayed_line = view->nlines;
5971 }
5972 } else
5973 view->count = 0;
5974 break;
5975 case ']':
5976 if (s->diff_context < GOT_DIFF_MAX_CONTEXT) {
5977 s->diff_context++;
5978 s->matched_line = 0;
5979 diff_view_indicate_progress(view);
5980 err = create_diff(s);
5981 } else
5982 view->count = 0;
5983 break;
5984 case '<':
5985 case ',':
5986 case 'K':
5987 up = 1;
5988 /* FALL THROUGH */
5989 case '>':
5990 case '.':
5991 case 'J':
5992 if (s->parent_view == NULL) {
5993 view->count = 0;
5994 break;
5995 }
5996 s->parent_view->count = view->count;
5997
5998 if (s->parent_view->type == TOG_VIEW_LOG) {
5999 ls = &s->parent_view->state.log;
6000 old_selected_entry = ls->selected_entry;
6001
6002 err = input_log_view(NULL, s->parent_view,
6003 up ? KEY_UP : KEY_DOWN);
6004 if (err)
6005 break;
6006 view->count = s->parent_view->count;
6007
6008 if (old_selected_entry == ls->selected_entry)
6009 break;
6010
6011 err = set_selected_commit(s, ls->selected_entry);
6012 if (err)
6013 break;
6014 } else if (s->parent_view->type == TOG_VIEW_BLAME) {
6015 struct tog_blame_view_state *bs;
6016 struct got_object_id *id, *prev_id;
6017
6018 bs = &s->parent_view->state.blame;
6019 prev_id = get_annotation_for_line(bs->blame.lines,
6020 bs->blame.nlines, bs->last_diffed_line);
6021
6022 err = input_blame_view(&view, s->parent_view,
6023 up ? KEY_UP : KEY_DOWN);
6024 if (err)
6025 break;
6026 view->count = s->parent_view->count;
6027
6028 if (prev_id == NULL)
6029 break;
6030 id = get_selected_commit_id(bs->blame.lines,
6031 bs->blame.nlines, bs->first_displayed_line,
6032 bs->selected_line);
6033 if (id == NULL)
6034 break;
6035
6036 if (!got_object_id_cmp(prev_id, id))
6037 break;
6038
6039 err = input_blame_view(&view, s->parent_view, KEY_ENTER);
6040 if (err)
6041 break;
6042 }
6043 s->first_displayed_line = 1;
6044 s->last_displayed_line = view->nlines;
6045 s->matched_line = 0;
6046 view->x = 0;
6047
6048 diff_view_indicate_progress(view);
6049 err = create_diff(s);
6050 break;
6051 default:
6052 view->count = 0;
6053 break;
6054 }
6055
6056 return err;
6057 }
6058
6059 static const struct got_error *
6060 cmd_diff(int argc, char *argv[])
6061 {
6062 const struct got_error *error;
6063 struct got_repository *repo = NULL;
6064 struct got_worktree *worktree = NULL;
6065 struct got_object_id *id1 = NULL, *id2 = NULL;
6066 char *repo_path = NULL, *cwd = NULL;
6067 char *id_str1 = NULL, *id_str2 = NULL;
6068 char *keyword_idstr1 = NULL, *keyword_idstr2 = NULL;
6069 char *label1 = NULL, *label2 = NULL;
6070 int diff_context = 3, ignore_whitespace = 0;
6071 int ch, force_text_diff = 0;
6072 const char *errstr;
6073 struct tog_view *view;
6074 int *pack_fds = NULL;
6075
6076 while ((ch = getopt(argc, argv, "aC:r:w")) != -1) {
6077 switch (ch) {
6078 case 'a':
6079 force_text_diff = 1;
6080 break;
6081 case 'C':
6082 diff_context = strtonum(optarg, 0, GOT_DIFF_MAX_CONTEXT,
6083 &errstr);
6084 if (errstr != NULL)
6085 errx(1, "number of context lines is %s: %s",
6086 errstr, errstr);
6087 break;
6088 case 'r':
6089 repo_path = realpath(optarg, NULL);
6090 if (repo_path == NULL)
6091 return got_error_from_errno2("realpath",
6092 optarg);
6093 got_path_strip_trailing_slashes(repo_path);
6094 break;
6095 case 'w':
6096 ignore_whitespace = 1;
6097 break;
6098 default:
6099 usage_diff();
6100 /* NOTREACHED */
6101 }
6102 }
6103
6104 argc -= optind;
6105 argv += optind;
6106
6107 if (argc == 0) {
6108 usage_diff(); /* TODO show local worktree changes */
6109 } else if (argc == 2) {
6110 id_str1 = argv[0];
6111 id_str2 = argv[1];
6112 } else
6113 usage_diff();
6114
6115 error = got_repo_pack_fds_open(&pack_fds);
6116 if (error)
6117 goto done;
6118
6119 if (repo_path == NULL) {
6120 cwd = getcwd(NULL, 0);
6121 if (cwd == NULL)
6122 return got_error_from_errno("getcwd");
6123 error = got_worktree_open(&worktree, cwd, NULL);
6124 if (error && error->code != GOT_ERR_NOT_WORKTREE)
6125 goto done;
6126 if (worktree)
6127 repo_path =
6128 strdup(got_worktree_get_repo_path(worktree));
6129 else
6130 repo_path = strdup(cwd);
6131 if (repo_path == NULL) {
6132 error = got_error_from_errno("strdup");
6133 goto done;
6134 }
6135 }
6136
6137 error = got_repo_open(&repo, repo_path, NULL, pack_fds);
6138 if (error)
6139 goto done;
6140
6141 init_curses();
6142
6143 error = apply_unveil(got_repo_get_path(repo), NULL);
6144 if (error)
6145 goto done;
6146
6147 error = tog_load_refs(repo, 0);
6148 if (error)
6149 goto done;
6150
6151 if (id_str1 != NULL) {
6152 error = got_keyword_to_idstr(&keyword_idstr1, id_str1,
6153 repo, worktree);
6154 if (error != NULL)
6155 goto done;
6156 if (keyword_idstr1 != NULL)
6157 id_str1 = keyword_idstr1;
6158 }
6159 if (id_str2 != NULL) {
6160 error = got_keyword_to_idstr(&keyword_idstr2, id_str2,
6161 repo, worktree);
6162 if (error != NULL)
6163 goto done;
6164 if (keyword_idstr2 != NULL)
6165 id_str2 = keyword_idstr2;
6166 }
6167
6168 error = got_repo_match_object_id(&id1, &label1, id_str1,
6169 GOT_OBJ_TYPE_ANY, &tog_refs, repo);
6170 if (error)
6171 goto done;
6172
6173 error = got_repo_match_object_id(&id2, &label2, id_str2,
6174 GOT_OBJ_TYPE_ANY, &tog_refs, repo);
6175 if (error)
6176 goto done;
6177
6178 view = view_open(0, 0, 0, 0, TOG_VIEW_DIFF);
6179 if (view == NULL) {
6180 error = got_error_from_errno("view_open");
6181 goto done;
6182 }
6183 error = open_diff_view(view, id1, id2, label1, label2, diff_context,
6184 ignore_whitespace, force_text_diff, NULL, repo);
6185 if (error)
6186 goto done;
6187
6188 if (worktree) {
6189 error = set_tog_base_commit(repo, worktree);
6190 if (error != NULL)
6191 goto done;
6192 }
6193
6194 error = view_loop(view);
6195
6196 done:
6197 free(tog_base_commit.id);
6198 free(keyword_idstr1);
6199 free(keyword_idstr2);
6200 free(label1);
6201 free(label2);
6202 free(repo_path);
6203 free(cwd);
6204 if (repo) {
6205 const struct got_error *close_err = got_repo_close(repo);
6206 if (error == NULL)
6207 error = close_err;
6208 }
6209 if (worktree)
6210 got_worktree_close(worktree);
6211 if (pack_fds) {
6212 const struct got_error *pack_err =
6213 got_repo_pack_fds_close(pack_fds);
6214 if (error == NULL)
6215 error = pack_err;
6216 }
6217 tog_free_refs();
6218 return error;
6219 }
6220
6221 __dead static void
6222 usage_blame(void)
6223 {
6224 endwin();
6225 fprintf(stderr,
6226 "usage: %s blame [-c commit] [-r repository-path] path\n",
6227 getprogname());
6228 exit(1);
6229 }
6230
6231 struct tog_blame_line {
6232 int annotated;
6233 struct got_object_id *id;
6234 };
6235
6236 static const struct got_error *
6237 draw_blame(struct tog_view *view)
6238 {
6239 struct tog_blame_view_state *s = &view->state.blame;
6240 struct tog_blame *blame = &s->blame;
6241 regmatch_t *regmatch = &view->regmatch;
6242 const struct got_error *err;
6243 int lineno = 0, nprinted = 0;
6244 char *line = NULL;
6245 size_t linesize = 0;
6246 ssize_t linelen;
6247 wchar_t *wline;
6248 int width;
6249 struct tog_blame_line *blame_line;
6250 struct got_object_id *prev_id = NULL;
6251 char *id_str;
6252 struct tog_color *tc;
6253
6254 err = got_object_id_str(&id_str, &s->blamed_commit->id);
6255 if (err)
6256 return err;
6257
6258 rewind(blame->f);
6259 werase(view->window);
6260
6261 if (asprintf(&line, "commit %s", id_str) == -1) {
6262 err = got_error_from_errno("asprintf");
6263 free(id_str);
6264 return err;
6265 }
6266
6267 err = format_line(&wline, &width, NULL, line, 0, view->ncols, 0, 0);
6268 free(line);
6269 line = NULL;
6270 if (err)
6271 return err;
6272 if (view_needs_focus_indication(view))
6273 wstandout(view->window);
6274 tc = get_color(&s->colors, TOG_COLOR_COMMIT);
6275 if (tc)
6276 wattr_on(view->window, COLOR_PAIR(tc->colorpair), NULL);
6277 waddwstr(view->window, wline);
6278 while (width++ < view->ncols)
6279 waddch(view->window, ' ');
6280 if (tc)
6281 wattr_off(view->window, COLOR_PAIR(tc->colorpair), NULL);
6282 if (view_needs_focus_indication(view))
6283 wstandend(view->window);
6284 free(wline);
6285 wline = NULL;
6286
6287 if (view->gline > blame->nlines)
6288 view->gline = blame->nlines;
6289
6290 if (tog_io.wait_for_ui) {
6291 struct tog_blame_thread_args *bta = &s->blame.thread_args;
6292 int rc;
6293
6294 rc = pthread_cond_wait(&bta->blame_complete, &tog_mutex);
6295 if (rc)
6296 return got_error_set_errno(rc, "pthread_cond_wait");
6297 tog_io.wait_for_ui = 0;
6298 }
6299
6300 if (asprintf(&line, "[%d/%d] %s%s", view->gline ? view->gline :
6301 s->first_displayed_line - 1 + s->selected_line, blame->nlines,
6302 s->blame_complete ? "" : "annotating... ", s->path) == -1) {
6303 free(id_str);
6304 return got_error_from_errno("asprintf");
6305 }
6306 free(id_str);
6307 err = format_line(&wline, &width, NULL, line, 0, view->ncols, 0, 0);
6308 free(line);
6309 line = NULL;
6310 if (err)
6311 return err;
6312 waddwstr(view->window, wline);
6313 free(wline);
6314 wline = NULL;
6315 if (width < view->ncols - 1)
6316 waddch(view->window, '\n');
6317
6318 s->eof = 0;
6319 view->maxx = 0;
6320 while (nprinted < view->nlines - 2) {
6321 linelen = getline(&line, &linesize, blame->f);
6322 if (linelen == -1) {
6323 if (feof(blame->f)) {
6324 s->eof = 1;
6325 break;
6326 }
6327 free(line);
6328 return got_ferror(blame->f, GOT_ERR_IO);
6329 }
6330 if (++lineno < s->first_displayed_line)
6331 continue;
6332 if (view->gline && !gotoline(view, &lineno, &nprinted))
6333 continue;
6334
6335 /* Set view->maxx based on full line length. */
6336 err = format_line(&wline, &width, NULL, line, 0, INT_MAX, 9, 1);
6337 if (err) {
6338 free(line);
6339 return err;
6340 }
6341 free(wline);
6342 wline = NULL;
6343 view->maxx = MAX(view->maxx, width);
6344
6345 if (nprinted == s->selected_line - 1)
6346 wstandout(view->window);
6347
6348 if (blame->nlines > 0) {
6349 blame_line = &blame->lines[lineno - 1];
6350 if (blame_line->annotated && prev_id &&
6351 got_object_id_cmp(prev_id, blame_line->id) == 0 &&
6352 !(nprinted == s->selected_line - 1)) {
6353 waddstr(view->window, " ");
6354 } else if (blame_line->annotated) {
6355 char *id_str;
6356 err = got_object_id_str(&id_str,
6357 blame_line->id);
6358 if (err) {
6359 free(line);
6360 return err;
6361 }
6362 tc = get_color(&s->colors, TOG_COLOR_COMMIT);
6363 if (tc)
6364 wattr_on(view->window,
6365 COLOR_PAIR(tc->colorpair), NULL);
6366 wprintw(view->window, "%.8s", id_str);
6367 if (tc)
6368 wattr_off(view->window,
6369 COLOR_PAIR(tc->colorpair), NULL);
6370 free(id_str);
6371 prev_id = blame_line->id;
6372 } else {
6373 waddstr(view->window, "........");
6374 prev_id = NULL;
6375 }
6376 } else {
6377 waddstr(view->window, "........");
6378 prev_id = NULL;
6379 }
6380
6381 if (nprinted == s->selected_line - 1)
6382 wstandend(view->window);
6383 waddstr(view->window, " ");
6384
6385 if (view->ncols <= 9) {
6386 width = 9;
6387 } else if (s->first_displayed_line + nprinted ==
6388 s->matched_line &&
6389 regmatch->rm_so >= 0 && regmatch->rm_so < regmatch->rm_eo) {
6390 err = add_matched_line(&width, line, view->ncols - 9, 9,
6391 view->window, view->x, regmatch);
6392 if (err) {
6393 free(line);
6394 return err;
6395 }
6396 width += 9;
6397 } else {
6398 int skip;
6399 err = format_line(&wline, &width, &skip, line,
6400 view->x, view->ncols - 9, 9, 1);
6401 if (err) {
6402 free(line);
6403 return err;
6404 }
6405 waddwstr(view->window, &wline[skip]);
6406 width += 9;
6407 free(wline);
6408 wline = NULL;
6409 }
6410
6411 if (width <= view->ncols - 1)
6412 waddch(view->window, '\n');
6413 if (++nprinted == 1)
6414 s->first_displayed_line = lineno;
6415 }
6416 free(line);
6417 s->last_displayed_line = lineno;
6418
6419 view_border(view);
6420
6421 return NULL;
6422 }
6423
6424 static const struct got_error *
6425 blame_cb(void *arg, int nlines, int lineno,
6426 struct got_commit_object *commit, struct got_object_id *id)
6427 {
6428 const struct got_error *err = NULL;
6429 struct tog_blame_cb_args *a = arg;
6430 struct tog_blame_line *line;
6431 int errcode;
6432
6433 if (nlines != a->nlines ||
6434 (lineno != -1 && lineno < 1) || lineno > a->nlines)
6435 return got_error(GOT_ERR_RANGE);
6436
6437 errcode = pthread_mutex_lock(&tog_mutex);
6438 if (errcode)
6439 return got_error_set_errno(errcode, "pthread_mutex_lock");
6440
6441 if (*a->quit) { /* user has quit the blame view */
6442 err = got_error(GOT_ERR_ITER_COMPLETED);
6443 goto done;
6444 }
6445
6446 if (lineno == -1)
6447 goto done; /* no change in this commit */
6448
6449 line = &a->lines[lineno - 1];
6450 if (line->annotated)
6451 goto done;
6452
6453 line->id = got_object_id_dup(id);
6454 if (line->id == NULL) {
6455 err = got_error_from_errno("got_object_id_dup");
6456 goto done;
6457 }
6458 line->annotated = 1;
6459 done:
6460 errcode = pthread_mutex_unlock(&tog_mutex);
6461 if (errcode)
6462 err = got_error_set_errno(errcode, "pthread_mutex_unlock");
6463 return err;
6464 }
6465
6466 static void *
6467 blame_thread(void *arg)
6468 {
6469 const struct got_error *err, *close_err;
6470 struct tog_blame_thread_args *ta = arg;
6471 struct tog_blame_cb_args *a = ta->cb_args;
6472 int errcode, fd1 = -1, fd2 = -1;
6473 FILE *f1 = NULL, *f2 = NULL;
6474
6475 fd1 = got_opentempfd();
6476 if (fd1 == -1)
6477 return (void *)got_error_from_errno("got_opentempfd");
6478
6479 fd2 = got_opentempfd();
6480 if (fd2 == -1) {
6481 err = got_error_from_errno("got_opentempfd");
6482 goto done;
6483 }
6484
6485 f1 = got_opentemp();
6486 if (f1 == NULL) {
6487 err = (void *)got_error_from_errno("got_opentemp");
6488 goto done;
6489 }
6490 f2 = got_opentemp();
6491 if (f2 == NULL) {
6492 err = (void *)got_error_from_errno("got_opentemp");
6493 goto done;
6494 }
6495
6496 err = block_signals_used_by_main_thread();
6497 if (err)
6498 goto done;
6499
6500 err = got_blame(ta->path, a->commit_id, ta->repo,
6501 tog_diff_algo, blame_cb, ta->cb_args,
6502 ta->cancel_cb, ta->cancel_arg, fd1, fd2, f1, f2);
6503 if (err && err->code == GOT_ERR_CANCELLED)
6504 err = NULL;
6505
6506 errcode = pthread_mutex_lock(&tog_mutex);
6507 if (errcode) {
6508 err = got_error_set_errno(errcode, "pthread_mutex_lock");
6509 goto done;
6510 }
6511
6512 close_err = got_repo_close(ta->repo);
6513 if (err == NULL)
6514 err = close_err;
6515 ta->repo = NULL;
6516 *ta->complete = 1;
6517
6518 if (tog_io.wait_for_ui) {
6519 errcode = pthread_cond_signal(&ta->blame_complete);
6520 if (errcode && err == NULL)
6521 err = got_error_set_errno(errcode,
6522 "pthread_cond_signal");
6523 }
6524
6525 errcode = pthread_mutex_unlock(&tog_mutex);
6526 if (errcode && err == NULL)
6527 err = got_error_set_errno(errcode, "pthread_mutex_unlock");
6528
6529 done:
6530 if (fd1 != -1 && close(fd1) == -1 && err == NULL)
6531 err = got_error_from_errno("close");
6532 if (fd2 != -1 && close(fd2) == -1 && err == NULL)
6533 err = got_error_from_errno("close");
6534 if (f1 && fclose(f1) == EOF && err == NULL)
6535 err = got_error_from_errno("fclose");
6536 if (f2 && fclose(f2) == EOF && err == NULL)
6537 err = got_error_from_errno("fclose");
6538
6539 return (void *)err;
6540 }
6541
6542 static struct got_object_id *
6543 get_selected_commit_id(struct tog_blame_line *lines, int nlines,
6544 int first_displayed_line, int selected_line)
6545 {
6546 struct tog_blame_line *line;
6547
6548 if (nlines <= 0)
6549 return NULL;
6550
6551 line = &lines[first_displayed_line - 1 + selected_line - 1];
6552 if (!line->annotated)
6553 return NULL;
6554
6555 return line->id;
6556 }
6557
6558 static struct got_object_id *
6559 get_annotation_for_line(struct tog_blame_line *lines, int nlines,
6560 int lineno)
6561 {
6562 struct tog_blame_line *line;
6563
6564 if (nlines <= 0 || lineno >= nlines)
6565 return NULL;
6566
6567 line = &lines[lineno - 1];
6568 if (!line->annotated)
6569 return NULL;
6570
6571 return line->id;
6572 }
6573
6574 static const struct got_error *
6575 stop_blame(struct tog_blame *blame)
6576 {
6577 const struct got_error *err = NULL;
6578 int i;
6579
6580 if (blame->thread) {
6581 int errcode;
6582 errcode = pthread_mutex_unlock(&tog_mutex);
6583 if (errcode)
6584 return got_error_set_errno(errcode,
6585 "pthread_mutex_unlock");
6586 errcode = pthread_join(blame->thread, (void **)&err);
6587 if (errcode)
6588 return got_error_set_errno(errcode, "pthread_join");
6589 errcode = pthread_mutex_lock(&tog_mutex);
6590 if (errcode)
6591 return got_error_set_errno(errcode,
6592 "pthread_mutex_lock");
6593 if (err && err->code == GOT_ERR_ITER_COMPLETED)
6594 err = NULL;
6595 blame->thread = 0; //NULL;
6596 }
6597 if (blame->thread_args.repo) {
6598 const struct got_error *close_err;
6599 close_err = got_repo_close(blame->thread_args.repo);
6600 if (err == NULL)
6601 err = close_err;
6602 blame->thread_args.repo = NULL;
6603 }
6604 if (blame->f) {
6605 if (fclose(blame->f) == EOF && err == NULL)
6606 err = got_error_from_errno("fclose");
6607 blame->f = NULL;
6608 }
6609 if (blame->lines) {
6610 for (i = 0; i < blame->nlines; i++)
6611 free(blame->lines[i].id);
6612 free(blame->lines);
6613 blame->lines = NULL;
6614 }
6615 free(blame->cb_args.commit_id);
6616 blame->cb_args.commit_id = NULL;
6617 if (blame->pack_fds) {
6618 const struct got_error *pack_err =
6619 got_repo_pack_fds_close(blame->pack_fds);
6620 if (err == NULL)
6621 err = pack_err;
6622 blame->pack_fds = NULL;
6623 }
6624 free(blame->line_offsets);
6625 blame->line_offsets = NULL;
6626 return err;
6627 }
6628
6629 static const struct got_error *
6630 cancel_blame_view(void *arg)
6631 {
6632 const struct got_error *err = NULL;
6633 int *done = arg;
6634 int errcode;
6635
6636 errcode = pthread_mutex_lock(&tog_mutex);
6637 if (errcode)
6638 return got_error_set_errno(errcode,
6639 "pthread_mutex_unlock");
6640
6641 if (*done)
6642 err = got_error(GOT_ERR_CANCELLED);
6643
6644 errcode = pthread_mutex_unlock(&tog_mutex);
6645 if (errcode)
6646 return got_error_set_errno(errcode,
6647 "pthread_mutex_lock");
6648
6649 return err;
6650 }
6651
6652 static const struct got_error *
6653 run_blame(struct tog_view *view)
6654 {
6655 struct tog_blame_view_state *s = &view->state.blame;
6656 struct tog_blame *blame = &s->blame;
6657 const struct got_error *err = NULL;
6658 struct got_commit_object *commit = NULL;
6659 struct got_blob_object *blob = NULL;
6660 struct got_repository *thread_repo = NULL;
6661 struct got_object_id *obj_id = NULL;
6662 int obj_type, fd = -1;
6663 int *pack_fds = NULL;
6664
6665 err = got_object_open_as_commit(&commit, s->repo,
6666 &s->blamed_commit->id);
6667 if (err)
6668 return err;
6669
6670 fd = got_opentempfd();
6671 if (fd == -1) {
6672 err = got_error_from_errno("got_opentempfd");
6673 goto done;
6674 }
6675
6676 err = got_object_id_by_path(&obj_id, s->repo, commit, s->path);
6677 if (err)
6678 goto done;
6679
6680 err = got_object_get_type(&obj_type, s->repo, obj_id);
6681 if (err)
6682 goto done;
6683
6684 if (obj_type != GOT_OBJ_TYPE_BLOB) {
6685 err = got_error(GOT_ERR_OBJ_TYPE);
6686 goto done;
6687 }
6688
6689 err = got_object_open_as_blob(&blob, s->repo, obj_id, 8192, fd);
6690 if (err)
6691 goto done;
6692 blame->f = got_opentemp();
6693 if (blame->f == NULL) {
6694 err = got_error_from_errno("got_opentemp");
6695 goto done;
6696 }
6697 err = got_object_blob_dump_to_file(&blame->filesize, &blame->nlines,
6698 &blame->line_offsets, blame->f, blob);
6699 if (err)
6700 goto done;
6701 if (blame->nlines == 0) {
6702 s->blame_complete = 1;
6703 goto done;
6704 }
6705
6706 /* Don't include \n at EOF in the blame line count. */
6707 if (blame->line_offsets[blame->nlines - 1] == blame->filesize)
6708 blame->nlines--;
6709
6710 blame->lines = calloc(blame->nlines, sizeof(*blame->lines));
6711 if (blame->lines == NULL) {
6712 err = got_error_from_errno("calloc");
6713 goto done;
6714 }
6715
6716 err = got_repo_pack_fds_open(&pack_fds);
6717 if (err)
6718 goto done;
6719 err = got_repo_open(&thread_repo, got_repo_get_path(s->repo), NULL,
6720 pack_fds);
6721 if (err)
6722 goto done;
6723
6724 blame->pack_fds = pack_fds;
6725 blame->cb_args.view = view;
6726 blame->cb_args.lines = blame->lines;
6727 blame->cb_args.nlines = blame->nlines;
6728 blame->cb_args.commit_id = got_object_id_dup(&s->blamed_commit->id);
6729 if (blame->cb_args.commit_id == NULL) {
6730 err = got_error_from_errno("got_object_id_dup");
6731 goto done;
6732 }
6733 blame->cb_args.quit = &s->done;
6734
6735 blame->thread_args.path = s->path;
6736 blame->thread_args.repo = thread_repo;
6737 blame->thread_args.cb_args = &blame->cb_args;
6738 blame->thread_args.complete = &s->blame_complete;
6739 blame->thread_args.cancel_cb = cancel_blame_view;
6740 blame->thread_args.cancel_arg = &s->done;
6741 s->blame_complete = 0;
6742
6743 if (s->first_displayed_line + view->nlines - 1 > blame->nlines) {
6744 s->first_displayed_line = 1;
6745 s->last_displayed_line = view->nlines;
6746 s->selected_line = 1;
6747 }
6748 s->matched_line = 0;
6749
6750 done:
6751 if (commit)
6752 got_object_commit_close(commit);
6753 if (fd != -1 && close(fd) == -1 && err == NULL)
6754 err = got_error_from_errno("close");
6755 if (blob)
6756 got_object_blob_close(blob);
6757 free(obj_id);
6758 if (err)
6759 stop_blame(blame);
6760 return err;
6761 }
6762
6763 static const struct got_error *
6764 open_blame_view(struct tog_view *view, char *path,
6765 struct got_object_id *commit_id, struct got_repository *repo)
6766 {
6767 const struct got_error *err = NULL;
6768 struct tog_blame_view_state *s = &view->state.blame;
6769
6770 STAILQ_INIT(&s->blamed_commits);
6771
6772 s->path = strdup(path);
6773 if (s->path == NULL)
6774 return got_error_from_errno("strdup");
6775
6776 err = got_object_qid_alloc(&s->blamed_commit, commit_id);
6777 if (err) {
6778 free(s->path);
6779 return err;
6780 }
6781
6782 STAILQ_INSERT_HEAD(&s->blamed_commits, s->blamed_commit, entry);
6783 s->first_displayed_line = 1;
6784 s->last_displayed_line = view->nlines;
6785 s->selected_line = 1;
6786 s->blame_complete = 0;
6787 s->repo = repo;
6788 s->commit_id = commit_id;
6789 memset(&s->blame, 0, sizeof(s->blame));
6790
6791 STAILQ_INIT(&s->colors);
6792 if (has_colors() && getenv("TOG_COLORS") != NULL) {
6793 err = add_color(&s->colors, "^", TOG_COLOR_COMMIT,
6794 get_color_value("TOG_COLOR_COMMIT"));
6795 if (err)
6796 return err;
6797 }
6798
6799 view->show = show_blame_view;
6800 view->input = input_blame_view;
6801 view->reset = reset_blame_view;
6802 view->close = close_blame_view;
6803 view->search_start = search_start_blame_view;
6804 view->search_setup = search_setup_blame_view;
6805 view->search_next = search_next_view_match;
6806
6807 if (using_mock_io) {
6808 struct tog_blame_thread_args *bta = &s->blame.thread_args;
6809 int rc;
6810
6811 rc = pthread_cond_init(&bta->blame_complete, NULL);
6812 if (rc)
6813 return got_error_set_errno(rc, "pthread_cond_init");
6814 }
6815
6816 return run_blame(view);
6817 }
6818
6819 static const struct got_error *
6820 close_blame_view(struct tog_view *view)
6821 {
6822 const struct got_error *err = NULL;
6823 struct tog_blame_view_state *s = &view->state.blame;
6824
6825 if (s->blame.thread)
6826 err = stop_blame(&s->blame);
6827
6828 while (!STAILQ_EMPTY(&s->blamed_commits)) {
6829 struct got_object_qid *blamed_commit;
6830 blamed_commit = STAILQ_FIRST(&s->blamed_commits);
6831 STAILQ_REMOVE_HEAD(&s->blamed_commits, entry);
6832 got_object_qid_free(blamed_commit);
6833 }
6834
6835 if (using_mock_io) {
6836 struct tog_blame_thread_args *bta = &s->blame.thread_args;
6837 int rc;
6838
6839 rc = pthread_cond_destroy(&bta->blame_complete);
6840 if (rc && err == NULL)
6841 err = got_error_set_errno(rc, "pthread_cond_destroy");
6842 }
6843
6844 free(s->path);
6845 free_colors(&s->colors);
6846 return err;
6847 }
6848
6849 static const struct got_error *
6850 search_start_blame_view(struct tog_view *view)
6851 {
6852 struct tog_blame_view_state *s = &view->state.blame;
6853
6854 s->matched_line = 0;
6855 return NULL;
6856 }
6857
6858 static void
6859 search_setup_blame_view(struct tog_view *view, FILE **f, off_t **line_offsets,
6860 size_t *nlines, int **first, int **last, int **match, int **selected)
6861 {
6862 struct tog_blame_view_state *s = &view->state.blame;
6863
6864 *f = s->blame.f;
6865 *nlines = s->blame.nlines;
6866 *line_offsets = s->blame.line_offsets;
6867 *match = &s->matched_line;
6868 *first = &s->first_displayed_line;
6869 *last = &s->last_displayed_line;
6870 *selected = &s->selected_line;
6871 }
6872
6873 static const struct got_error *
6874 show_blame_view(struct tog_view *view)
6875 {
6876 const struct got_error *err = NULL;
6877 struct tog_blame_view_state *s = &view->state.blame;
6878 int errcode;
6879
6880 if (s->blame.thread == 0 && !s->blame_complete) {
6881 errcode = pthread_create(&s->blame.thread, NULL, blame_thread,
6882 &s->blame.thread_args);
6883 if (errcode)
6884 return got_error_set_errno(errcode, "pthread_create");
6885
6886 if (!using_mock_io)
6887 halfdelay(1); /* fast refresh while annotating */
6888 }
6889
6890 if (s->blame_complete && !using_mock_io)
6891 halfdelay(10); /* disable fast refresh */
6892
6893 err = draw_blame(view);
6894
6895 view_border(view);
6896 return err;
6897 }
6898
6899 static const struct got_error *
6900 log_annotated_line(struct tog_view **new_view, int begin_y, int begin_x,
6901 struct got_repository *repo, struct got_object_id *id)
6902 {
6903 struct tog_view *log_view;
6904 const struct got_error *err = NULL;
6905
6906 *new_view = NULL;
6907
6908 log_view = view_open(0, 0, begin_y, begin_x, TOG_VIEW_LOG);
6909 if (log_view == NULL)
6910 return got_error_from_errno("view_open");
6911
6912 err = open_log_view(log_view, id, repo, GOT_REF_HEAD, "", 0, NULL);
6913 if (err)
6914 view_close(log_view);
6915 else
6916 *new_view = log_view;
6917
6918 return err;
6919 }
6920
6921 static const struct got_error *
6922 input_blame_view(struct tog_view **new_view, struct tog_view *view, int ch)
6923 {
6924 const struct got_error *err = NULL, *thread_err = NULL;
6925 struct tog_view *diff_view;
6926 struct tog_blame_view_state *s = &view->state.blame;
6927 int eos, nscroll, begin_y = 0, begin_x = 0;
6928
6929 eos = nscroll = view->nlines - 2;
6930 if (view_is_hsplit_top(view))
6931 --eos; /* border */
6932
6933 switch (ch) {
6934 case '0':
6935 case '$':
6936 case KEY_RIGHT:
6937 case 'l':
6938 case KEY_LEFT:
6939 case 'h':
6940 horizontal_scroll_input(view, ch);
6941 break;
6942 case 'q':
6943 s->done = 1;
6944 break;
6945 case 'g':
6946 case KEY_HOME:
6947 s->selected_line = 1;
6948 s->first_displayed_line = 1;
6949 view->count = 0;
6950 break;
6951 case 'G':
6952 case KEY_END:
6953 if (s->blame.nlines < eos) {
6954 s->selected_line = s->blame.nlines;
6955 s->first_displayed_line = 1;
6956 } else {
6957 s->selected_line = eos;
6958 s->first_displayed_line = s->blame.nlines - (eos - 1);
6959 }
6960 view->count = 0;
6961 break;
6962 case 'k':
6963 case KEY_UP:
6964 case CTRL('p'):
6965 if (s->selected_line > 1)
6966 s->selected_line--;
6967 else if (s->selected_line == 1 &&
6968 s->first_displayed_line > 1)
6969 s->first_displayed_line--;
6970 else
6971 view->count = 0;
6972 break;
6973 case CTRL('u'):
6974 case 'u':
6975 nscroll /= 2;
6976 /* FALL THROUGH */
6977 case KEY_PPAGE:
6978 case CTRL('b'):
6979 case 'b':
6980 if (s->first_displayed_line == 1) {
6981 if (view->count > 1)
6982 nscroll += nscroll;
6983 s->selected_line = MAX(1, s->selected_line - nscroll);
6984 view->count = 0;
6985 break;
6986 }
6987 if (s->first_displayed_line > nscroll)
6988 s->first_displayed_line -= nscroll;
6989 else
6990 s->first_displayed_line = 1;
6991 break;
6992 case 'j':
6993 case KEY_DOWN:
6994 case CTRL('n'):
6995 if (s->selected_line < eos && s->first_displayed_line +
6996 s->selected_line <= s->blame.nlines)
6997 s->selected_line++;
6998 else if (s->first_displayed_line < s->blame.nlines - (eos - 1))
6999 s->first_displayed_line++;
7000 else
7001 view->count = 0;
7002 break;
7003 case 'c':
7004 case 'p': {
7005 struct got_object_id *id = NULL;
7006
7007 view->count = 0;
7008 id = get_selected_commit_id(s->blame.lines, s->blame.nlines,
7009 s->first_displayed_line, s->selected_line);
7010 if (id == NULL)
7011 break;
7012 if (ch == 'p') {
7013 struct got_commit_object *commit, *pcommit;
7014 struct got_object_qid *pid;
7015 struct got_object_id *blob_id = NULL;
7016 int obj_type;
7017 err = got_object_open_as_commit(&commit,
7018 s->repo, id);
7019 if (err)
7020 break;
7021 pid = STAILQ_FIRST(
7022 got_object_commit_get_parent_ids(commit));
7023 if (pid == NULL) {
7024 got_object_commit_close(commit);
7025 break;
7026 }
7027 /* Check if path history ends here. */
7028 err = got_object_open_as_commit(&pcommit,
7029 s->repo, &pid->id);
7030 if (err)
7031 break;
7032 err = got_object_id_by_path(&blob_id, s->repo,
7033 pcommit, s->path);
7034 got_object_commit_close(pcommit);
7035 if (err) {
7036 if (err->code == GOT_ERR_NO_TREE_ENTRY)
7037 err = NULL;
7038 got_object_commit_close(commit);
7039 break;
7040 }
7041 err = got_object_get_type(&obj_type, s->repo,
7042 blob_id);
7043 free(blob_id);
7044 /* Can't blame non-blob type objects. */
7045 if (obj_type != GOT_OBJ_TYPE_BLOB) {
7046 got_object_commit_close(commit);
7047 break;
7048 }
7049 err = got_object_qid_alloc(&s->blamed_commit,
7050 &pid->id);
7051 got_object_commit_close(commit);
7052 } else {
7053 if (got_object_id_cmp(id,
7054 &s->blamed_commit->id) == 0)
7055 break;
7056 err = got_object_qid_alloc(&s->blamed_commit,
7057 id);
7058 }
7059 if (err)
7060 break;
7061 s->done = 1;
7062 thread_err = stop_blame(&s->blame);
7063 s->done = 0;
7064 if (thread_err)
7065 break;
7066 STAILQ_INSERT_HEAD(&s->blamed_commits,
7067 s->blamed_commit, entry);
7068 err = run_blame(view);
7069 if (err)
7070 break;
7071 break;
7072 }
7073 case 'C': {
7074 struct got_object_qid *first;
7075
7076 view->count = 0;
7077 first = STAILQ_FIRST(&s->blamed_commits);
7078 if (!got_object_id_cmp(&first->id, s->commit_id))
7079 break;
7080 s->done = 1;
7081 thread_err = stop_blame(&s->blame);
7082 s->done = 0;
7083 if (thread_err)
7084 break;
7085 STAILQ_REMOVE_HEAD(&s->blamed_commits, entry);
7086 got_object_qid_free(s->blamed_commit);
7087 s->blamed_commit =
7088 STAILQ_FIRST(&s->blamed_commits);
7089 err = run_blame(view);
7090 if (err)
7091 break;
7092 break;
7093 }
7094 case 'L':
7095 view->count = 0;
7096 s->id_to_log = get_selected_commit_id(s->blame.lines,
7097 s->blame.nlines, s->first_displayed_line, s->selected_line);
7098 if (s->id_to_log)
7099 err = view_request_new(new_view, view, TOG_VIEW_LOG);
7100 break;
7101 case KEY_ENTER:
7102 case '\r': {
7103 struct got_object_id *id = NULL;
7104 struct got_object_qid *pid;
7105 struct got_commit_object *commit = NULL;
7106
7107 view->count = 0;
7108 id = get_selected_commit_id(s->blame.lines, s->blame.nlines,
7109 s->first_displayed_line, s->selected_line);
7110 if (id == NULL)
7111 break;
7112 err = got_object_open_as_commit(&commit, s->repo, id);
7113 if (err)
7114 break;
7115 pid = STAILQ_FIRST(got_object_commit_get_parent_ids(commit));
7116 if (*new_view) {
7117 /* traversed from diff view, release diff resources */
7118 err = close_diff_view(*new_view);
7119 if (err)
7120 break;
7121 diff_view = *new_view;
7122 } else {
7123 if (view_is_parent_view(view))
7124 view_get_split(view, &begin_y, &begin_x);
7125
7126 diff_view = view_open(0, 0, begin_y, begin_x,
7127 TOG_VIEW_DIFF);
7128 if (diff_view == NULL) {
7129 got_object_commit_close(commit);
7130 err = got_error_from_errno("view_open");
7131 break;
7132 }
7133 }
7134 err = open_diff_view(diff_view, pid ? &pid->id : NULL,
7135 id, NULL, NULL, 3, 0, 0, view, s->repo);
7136 got_object_commit_close(commit);
7137 if (err)
7138 break;
7139 s->last_diffed_line = s->first_displayed_line - 1 +
7140 s->selected_line;
7141 if (*new_view)
7142 break; /* still open from active diff view */
7143 if (view_is_parent_view(view) &&
7144 view->mode == TOG_VIEW_SPLIT_HRZN) {
7145 err = view_init_hsplit(view, begin_y);
7146 if (err)
7147 break;
7148 }
7149
7150 view->focussed = 0;
7151 diff_view->focussed = 1;
7152 diff_view->mode = view->mode;
7153 diff_view->nlines = view->lines - begin_y;
7154 if (view_is_parent_view(view)) {
7155 view_transfer_size(diff_view, view);
7156 err = view_close_child(view);
7157 if (err)
7158 break;
7159 err = view_set_child(view, diff_view);
7160 if (err)
7161 break;
7162 view->focus_child = 1;
7163 } else
7164 *new_view = diff_view;
7165 if (err)
7166 break;
7167 break;
7168 }
7169 case CTRL('d'):
7170 case 'd':
7171 nscroll /= 2;
7172 /* FALL THROUGH */
7173 case KEY_NPAGE:
7174 case CTRL('f'):
7175 case 'f':
7176 case ' ':
7177 if (s->last_displayed_line >= s->blame.nlines &&
7178 s->selected_line >= MIN(s->blame.nlines,
7179 view->nlines - 2)) {
7180 view->count = 0;
7181 break;
7182 }
7183 if (s->last_displayed_line >= s->blame.nlines &&
7184 s->selected_line < view->nlines - 2) {
7185 s->selected_line +=
7186 MIN(nscroll, s->last_displayed_line -
7187 s->first_displayed_line - s->selected_line + 1);
7188 }
7189 if (s->last_displayed_line + nscroll <= s->blame.nlines)
7190 s->first_displayed_line += nscroll;
7191 else
7192 s->first_displayed_line =
7193 s->blame.nlines - (view->nlines - 3);
7194 break;
7195 case KEY_RESIZE:
7196 if (s->selected_line > view->nlines - 2) {
7197 s->selected_line = MIN(s->blame.nlines,
7198 view->nlines - 2);
7199 }
7200 break;
7201 default:
7202 view->count = 0;
7203 break;
7204 }
7205 return thread_err ? thread_err : err;
7206 }
7207
7208 static const struct got_error *
7209 reset_blame_view(struct tog_view *view)
7210 {
7211 const struct got_error *err;
7212 struct tog_blame_view_state *s = &view->state.blame;
7213
7214 view->count = 0;
7215 s->done = 1;
7216 err = stop_blame(&s->blame);
7217 s->done = 0;
7218 if (err)
7219 return err;
7220 return run_blame(view);
7221 }
7222
7223 static const struct got_error *
7224 cmd_blame(int argc, char *argv[])
7225 {
7226 const struct got_error *error;
7227 struct got_repository *repo = NULL;
7228 struct got_worktree *worktree = NULL;
7229 char *cwd = NULL, *repo_path = NULL, *in_repo_path = NULL;
7230 char *link_target = NULL;
7231 struct got_object_id *commit_id = NULL;
7232 struct got_commit_object *commit = NULL;
7233 char *keyword_idstr = NULL, *commit_id_str = NULL;
7234 int ch;
7235 struct tog_view *view = NULL;
7236 int *pack_fds = NULL;
7237
7238 while ((ch = getopt(argc, argv, "c:r:")) != -1) {
7239 switch (ch) {
7240 case 'c':
7241 commit_id_str = optarg;
7242 break;
7243 case 'r':
7244 repo_path = realpath(optarg, NULL);
7245 if (repo_path == NULL)
7246 return got_error_from_errno2("realpath",
7247 optarg);
7248 break;
7249 default:
7250 usage_blame();
7251 /* NOTREACHED */
7252 }
7253 }
7254
7255 argc -= optind;
7256 argv += optind;
7257
7258 if (argc != 1)
7259 usage_blame();
7260
7261 error = got_repo_pack_fds_open(&pack_fds);
7262 if (error != NULL)
7263 goto done;
7264
7265 if (repo_path == NULL) {
7266 cwd = getcwd(NULL, 0);
7267 if (cwd == NULL)
7268 return got_error_from_errno("getcwd");
7269 error = got_worktree_open(&worktree, cwd, NULL);
7270 if (error && error->code != GOT_ERR_NOT_WORKTREE)
7271 goto done;
7272 if (worktree)
7273 repo_path =
7274 strdup(got_worktree_get_repo_path(worktree));
7275 else
7276 repo_path = strdup(cwd);
7277 if (repo_path == NULL) {
7278 error = got_error_from_errno("strdup");
7279 goto done;
7280 }
7281 }
7282
7283 error = got_repo_open(&repo, repo_path, NULL, pack_fds);
7284 if (error != NULL)
7285 goto done;
7286
7287 error = get_in_repo_path_from_argv0(&in_repo_path, argc, argv, repo,
7288 worktree);
7289 if (error)
7290 goto done;
7291
7292 init_curses();
7293
7294 error = apply_unveil(got_repo_get_path(repo), NULL);
7295 if (error)
7296 goto done;
7297
7298 error = tog_load_refs(repo, 0);
7299 if (error)
7300 goto done;
7301
7302 if (commit_id_str == NULL) {
7303 struct got_reference *head_ref;
7304 error = got_ref_open(&head_ref, repo, worktree ?
7305 got_worktree_get_head_ref_name(worktree) : GOT_REF_HEAD, 0);
7306 if (error != NULL)
7307 goto done;
7308 error = got_ref_resolve(&commit_id, repo, head_ref);
7309 got_ref_close(head_ref);
7310 } else {
7311 error = got_keyword_to_idstr(&keyword_idstr, commit_id_str,
7312 repo, worktree);
7313 if (error != NULL)
7314 goto done;
7315 if (keyword_idstr != NULL)
7316 commit_id_str = keyword_idstr;
7317
7318 error = got_repo_match_object_id(&commit_id, NULL,
7319 commit_id_str, GOT_OBJ_TYPE_COMMIT, &tog_refs, repo);
7320 }
7321 if (error != NULL)
7322 goto done;
7323
7324 error = got_object_open_as_commit(&commit, repo, commit_id);
7325 if (error)
7326 goto done;
7327
7328 error = got_object_resolve_symlinks(&link_target, in_repo_path,
7329 commit, repo);
7330 if (error)
7331 goto done;
7332
7333 view = view_open(0, 0, 0, 0, TOG_VIEW_BLAME);
7334 if (view == NULL) {
7335 error = got_error_from_errno("view_open");
7336 goto done;
7337 }
7338 error = open_blame_view(view, link_target ? link_target : in_repo_path,
7339 commit_id, repo);
7340 if (error != NULL) {
7341 if (view->close == NULL)
7342 close_blame_view(view);
7343 view_close(view);
7344 goto done;
7345 }
7346
7347 if (worktree) {
7348 error = set_tog_base_commit(repo, worktree);
7349 if (error != NULL)
7350 goto done;
7351
7352 /* Release work tree lock. */
7353 got_worktree_close(worktree);
7354 worktree = NULL;
7355 }
7356
7357 error = view_loop(view);
7358
7359 done:
7360 free(tog_base_commit.id);
7361 free(repo_path);
7362 free(in_repo_path);
7363 free(link_target);
7364 free(cwd);
7365 free(commit_id);
7366 free(keyword_idstr);
7367 if (commit)
7368 got_object_commit_close(commit);
7369 if (worktree)
7370 got_worktree_close(worktree);
7371 if (repo) {
7372 const struct got_error *close_err = got_repo_close(repo);
7373 if (error == NULL)
7374 error = close_err;
7375 }
7376 if (pack_fds) {
7377 const struct got_error *pack_err =
7378 got_repo_pack_fds_close(pack_fds);
7379 if (error == NULL)
7380 error = pack_err;
7381 }
7382 tog_free_refs();
7383 return error;
7384 }
7385
7386 static const struct got_error *
7387 draw_tree_entries(struct tog_view *view, const char *parent_path)
7388 {
7389 struct tog_tree_view_state *s = &view->state.tree;
7390 const struct got_error *err = NULL;
7391 struct got_tree_entry *te;
7392 wchar_t *wline;
7393 char *index = NULL;
7394 struct tog_color *tc;
7395 int width, n, nentries, scrollx, i = 1;
7396 int limit = view->nlines;
7397
7398 s->ndisplayed = 0;
7399 if (view_is_hsplit_top(view))
7400 --limit; /* border */
7401
7402 werase(view->window);
7403
7404 if (limit == 0)
7405 return NULL;
7406
7407 err = format_line(&wline, &width, NULL, s->tree_label, 0, view->ncols,
7408 0, 0);
7409 if (err)
7410 return err;
7411 if (view_needs_focus_indication(view))
7412 wstandout(view->window);
7413 tc = get_color(&s->colors, TOG_COLOR_COMMIT);
7414 if (tc)
7415 wattr_on(view->window, COLOR_PAIR(tc->colorpair), NULL);
7416 waddwstr(view->window, wline);
7417 free(wline);
7418 wline = NULL;
7419 while (width++ < view->ncols)
7420 waddch(view->window, ' ');
7421 if (tc)
7422 wattr_off(view->window, COLOR_PAIR(tc->colorpair), NULL);
7423 if (view_needs_focus_indication(view))
7424 wstandend(view->window);
7425 if (--limit <= 0)
7426 return NULL;
7427
7428 i += s->selected;
7429 if (s->first_displayed_entry) {
7430 i += got_tree_entry_get_index(s->first_displayed_entry);
7431 if (s->tree != s->root)
7432 ++i; /* account for ".." entry */
7433 }
7434 nentries = got_object_tree_get_nentries(s->tree);
7435 if (asprintf(&index, "[%d/%d] %s",
7436 i, nentries + (s->tree == s->root ? 0 : 1), parent_path) == -1)
7437 return got_error_from_errno("asprintf");
7438 err = format_line(&wline, &width, NULL, index, 0, view->ncols, 0, 0);
7439 free(index);
7440 if (err)
7441 return err;
7442 waddwstr(view->window, wline);
7443 free(wline);
7444 wline = NULL;
7445 if (width < view->ncols - 1)
7446 waddch(view->window, '\n');
7447 if (--limit <= 0)
7448 return NULL;
7449 waddch(view->window, '\n');
7450 if (--limit <= 0)
7451 return NULL;
7452
7453 if (s->first_displayed_entry == NULL) {
7454 te = got_object_tree_get_first_entry(s->tree);
7455 if (s->selected == 0) {
7456 if (view->focussed)
7457 wstandout(view->window);
7458 s->selected_entry = NULL;
7459 }
7460 waddstr(view->window, " ..\n"); /* parent directory */
7461 if (s->selected == 0 && view->focussed)
7462 wstandend(view->window);
7463 s->ndisplayed++;
7464 if (--limit <= 0)
7465 return NULL;
7466 n = 1;
7467 } else {
7468 n = 0;
7469 te = s->first_displayed_entry;
7470 }
7471
7472 view->maxx = 0;
7473 for (i = got_tree_entry_get_index(te); i < nentries; i++) {
7474 char *line = NULL, *id_str = NULL, *link_target = NULL;
7475 const char *modestr = "";
7476 mode_t mode;
7477
7478 te = got_object_tree_get_entry(s->tree, i);
7479 mode = got_tree_entry_get_mode(te);
7480
7481 if (s->show_ids) {
7482 err = got_object_id_str(&id_str,
7483 got_tree_entry_get_id(te));
7484 if (err)
7485 return got_error_from_errno(
7486 "got_object_id_str");
7487 }
7488 if (got_object_tree_entry_is_submodule(te))
7489 modestr = "$";
7490 else if (S_ISLNK(mode)) {
7491 int i;
7492
7493 err = got_tree_entry_get_symlink_target(&link_target,
7494 te, s->repo);
7495 if (err) {
7496 free(id_str);
7497 return err;
7498 }
7499 for (i = 0; link_target[i] != '\0'; i++) {
7500 if (!isprint((unsigned char)link_target[i]))
7501 link_target[i] = '?';
7502 }
7503 modestr = "@";
7504 }
7505 else if (S_ISDIR(mode))
7506 modestr = "/";
7507 else if (mode & S_IXUSR)
7508 modestr = "*";
7509 if (asprintf(&line, "%s %s%s%s%s", id_str ? id_str : "",
7510 got_tree_entry_get_name(te), modestr,
7511 link_target ? " -> ": "",
7512 link_target ? link_target : "") == -1) {
7513 free(id_str);
7514 free(link_target);
7515 return got_error_from_errno("asprintf");
7516 }
7517 free(id_str);
7518 free(link_target);
7519
7520 /* use full line width to determine view->maxx */
7521 err = format_line(&wline, &width, NULL, line, 0, INT_MAX, 0, 0);
7522 if (err) {
7523 free(line);
7524 break;
7525 }
7526 view->maxx = MAX(view->maxx, width);
7527 free(wline);
7528 wline = NULL;
7529
7530 err = format_line(&wline, &width, &scrollx, line, view->x,
7531 view->ncols, 0, 0);
7532 if (err) {
7533 free(line);
7534 break;
7535 }
7536 if (n == s->selected) {
7537 if (view->focussed)
7538 wstandout(view->window);
7539 s->selected_entry = te;
7540 }
7541 tc = match_color(&s->colors, line);
7542 if (tc)
7543 wattr_on(view->window,
7544 COLOR_PAIR(tc->colorpair), NULL);
7545 waddwstr(view->window, &wline[scrollx]);
7546 if (tc)
7547 wattr_off(view->window,
7548 COLOR_PAIR(tc->colorpair), NULL);
7549 if (width < view->ncols)
7550 waddch(view->window, '\n');
7551 if (n == s->selected && view->focussed)
7552 wstandend(view->window);
7553 free(line);
7554 free(wline);
7555 wline = NULL;
7556 n++;
7557 s->ndisplayed++;
7558 s->last_displayed_entry = te;
7559 if (--limit <= 0)
7560 break;
7561 }
7562
7563 return err;
7564 }
7565
7566 static void
7567 tree_scroll_up(struct tog_tree_view_state *s, int maxscroll)
7568 {
7569 struct got_tree_entry *te;
7570 int isroot = s->tree == s->root;
7571 int i = 0;
7572
7573 if (s->first_displayed_entry == NULL)
7574 return;
7575
7576 te = got_tree_entry_get_prev(s->tree, s->first_displayed_entry);
7577 while (i++ < maxscroll) {
7578 if (te == NULL) {
7579 if (!isroot)
7580 s->first_displayed_entry = NULL;
7581 break;
7582 }
7583 s->first_displayed_entry = te;
7584 te = got_tree_entry_get_prev(s->tree, te);
7585 }
7586 }
7587
7588 static const struct got_error *
7589 tree_scroll_down(struct tog_view *view, int maxscroll)
7590 {
7591 struct tog_tree_view_state *s = &view->state.tree;
7592 struct got_tree_entry *next, *last;
7593 int n = 0;
7594
7595 if (s->first_displayed_entry)
7596 next = got_tree_entry_get_next(s->tree,
7597 s->first_displayed_entry);
7598 else
7599 next = got_object_tree_get_first_entry(s->tree);
7600
7601 last = s->last_displayed_entry;
7602 while (next && n++ < maxscroll) {
7603 if (last) {
7604 s->last_displayed_entry = last;
7605 last = got_tree_entry_get_next(s->tree, last);
7606 }
7607 if (last || (view->mode == TOG_VIEW_SPLIT_HRZN && next)) {
7608 s->first_displayed_entry = next;
7609 next = got_tree_entry_get_next(s->tree, next);
7610 }
7611 }
7612
7613 return NULL;
7614 }
7615
7616 static const struct got_error *
7617 tree_entry_path(char **path, struct tog_parent_trees *parents,
7618 struct got_tree_entry *te)
7619 {
7620 const struct got_error *err = NULL;
7621 struct tog_parent_tree *pt;
7622 size_t len = 2; /* for leading slash and NUL */
7623
7624 TAILQ_FOREACH(pt, parents, entry)
7625 len += strlen(got_tree_entry_get_name(pt->selected_entry))
7626 + 1 /* slash */;
7627 if (te)
7628 len += strlen(got_tree_entry_get_name(te));
7629
7630 *path = calloc(1, len);
7631 if (path == NULL)
7632 return got_error_from_errno("calloc");
7633
7634 (*path)[0] = '/';
7635 pt = TAILQ_LAST(parents, tog_parent_trees);
7636 while (pt) {
7637 const char *name = got_tree_entry_get_name(pt->selected_entry);
7638 if (strlcat(*path, name, len) >= len) {
7639 err = got_error(GOT_ERR_NO_SPACE);
7640 goto done;
7641 }
7642 if (strlcat(*path, "/", len) >= len) {
7643 err = got_error(GOT_ERR_NO_SPACE);
7644 goto done;
7645 }
7646 pt = TAILQ_PREV(pt, tog_parent_trees, entry);
7647 }
7648 if (te) {
7649 if (strlcat(*path, got_tree_entry_get_name(te), len) >= len) {
7650 err = got_error(GOT_ERR_NO_SPACE);
7651 goto done;
7652 }
7653 }
7654 done:
7655 if (err) {
7656 free(*path);
7657 *path = NULL;
7658 }
7659 return err;
7660 }
7661
7662 static const struct got_error *
7663 blame_tree_entry(struct tog_view **new_view, int begin_y, int begin_x,
7664 struct got_tree_entry *te, struct tog_parent_trees *parents,
7665 struct got_object_id *commit_id, struct got_repository *repo)
7666 {
7667 const struct got_error *err = NULL;
7668 char *path;
7669 struct tog_view *blame_view;
7670
7671 *new_view = NULL;
7672
7673 err = tree_entry_path(&path, parents, te);
7674 if (err)
7675 return err;
7676
7677 blame_view = view_open(0, 0, begin_y, begin_x, TOG_VIEW_BLAME);
7678 if (blame_view == NULL) {
7679 err = got_error_from_errno("view_open");
7680 goto done;
7681 }
7682
7683 err = open_blame_view(blame_view, path, commit_id, repo);
7684 if (err) {
7685 if (err->code == GOT_ERR_CANCELLED)
7686 err = NULL;
7687 view_close(blame_view);
7688 } else
7689 *new_view = blame_view;
7690 done:
7691 free(path);
7692 return err;
7693 }
7694
7695 static const struct got_error *
7696 log_selected_tree_entry(struct tog_view **new_view, int begin_y, int begin_x,
7697 struct tog_tree_view_state *s)
7698 {
7699 struct tog_view *log_view;
7700 const struct got_error *err = NULL;
7701 char *path;
7702
7703 *new_view = NULL;
7704
7705 log_view = view_open(0, 0, begin_y, begin_x, TOG_VIEW_LOG);
7706 if (log_view == NULL)
7707 return got_error_from_errno("view_open");
7708
7709 err = tree_entry_path(&path, &s->parents, s->selected_entry);
7710 if (err)
7711 return err;
7712
7713 err = open_log_view(log_view, s->commit_id, s->repo, s->head_ref_name,
7714 path, 0, NULL);
7715 if (err)
7716 view_close(log_view);
7717 else
7718 *new_view = log_view;
7719 free(path);
7720 return err;
7721 }
7722
7723 static const struct got_error *
7724 open_tree_view(struct tog_view *view, struct got_object_id *commit_id,
7725 const char *head_ref_name, struct got_repository *repo)
7726 {
7727 const struct got_error *err = NULL;
7728 char *commit_id_str = NULL;
7729 struct tog_tree_view_state *s = &view->state.tree;
7730 struct got_commit_object *commit = NULL;
7731
7732 TAILQ_INIT(&s->parents);
7733 STAILQ_INIT(&s->colors);
7734
7735 s->commit_id = got_object_id_dup(commit_id);
7736 if (s->commit_id == NULL) {
7737 err = got_error_from_errno("got_object_id_dup");
7738 goto done;
7739 }
7740
7741 err = got_object_open_as_commit(&commit, repo, commit_id);
7742 if (err)
7743 goto done;
7744
7745 /*
7746 * The root is opened here and will be closed when the view is closed.
7747 * Any visited subtrees and their path-wise parents are opened and
7748 * closed on demand.
7749 */
7750 err = got_object_open_as_tree(&s->root, repo,
7751 got_object_commit_get_tree_id(commit));
7752 if (err)
7753 goto done;
7754 s->tree = s->root;
7755
7756 err = got_object_id_str(&commit_id_str, commit_id);
7757 if (err != NULL)
7758 goto done;
7759
7760 if (asprintf(&s->tree_label, "commit %s", commit_id_str) == -1) {
7761 err = got_error_from_errno("asprintf");
7762 goto done;
7763 }
7764
7765 s->first_displayed_entry = got_object_tree_get_entry(s->tree, 0);
7766 s->selected_entry = got_object_tree_get_entry(s->tree, 0);
7767 if (head_ref_name) {
7768 s->head_ref_name = strdup(head_ref_name);
7769 if (s->head_ref_name == NULL) {
7770 err = got_error_from_errno("strdup");
7771 goto done;
7772 }
7773 }
7774 s->repo = repo;
7775
7776 if (has_colors() && getenv("TOG_COLORS") != NULL) {
7777 err = add_color(&s->colors, "\\$$",
7778 TOG_COLOR_TREE_SUBMODULE,
7779 get_color_value("TOG_COLOR_TREE_SUBMODULE"));
7780 if (err)
7781 goto done;
7782 err = add_color(&s->colors, "@$", TOG_COLOR_TREE_SYMLINK,
7783 get_color_value("TOG_COLOR_TREE_SYMLINK"));
7784 if (err)
7785 goto done;
7786 err = add_color(&s->colors, "/$",
7787 TOG_COLOR_TREE_DIRECTORY,
7788 get_color_value("TOG_COLOR_TREE_DIRECTORY"));
7789 if (err)
7790 goto done;
7791
7792 err = add_color(&s->colors, "\\*$",
7793 TOG_COLOR_TREE_EXECUTABLE,
7794 get_color_value("TOG_COLOR_TREE_EXECUTABLE"));
7795 if (err)
7796 goto done;
7797
7798 err = add_color(&s->colors, "^$", TOG_COLOR_COMMIT,
7799 get_color_value("TOG_COLOR_COMMIT"));
7800 if (err)
7801 goto done;
7802 }
7803
7804 view->show = show_tree_view;
7805 view->input = input_tree_view;
7806 view->close = close_tree_view;
7807 view->search_start = search_start_tree_view;
7808 view->search_next = search_next_tree_view;
7809 done:
7810 free(commit_id_str);
7811 if (commit)
7812 got_object_commit_close(commit);
7813 if (err) {
7814 if (view->close == NULL)
7815 close_tree_view(view);
7816 view_close(view);
7817 }
7818 return err;
7819 }
7820
7821 static const struct got_error *
7822 close_tree_view(struct tog_view *view)
7823 {
7824 struct tog_tree_view_state *s = &view->state.tree;
7825
7826 free_colors(&s->colors);
7827 free(s->tree_label);
7828 s->tree_label = NULL;
7829 free(s->commit_id);
7830 s->commit_id = NULL;
7831 free(s->head_ref_name);
7832 s->head_ref_name = NULL;
7833 while (!TAILQ_EMPTY(&s->parents)) {
7834 struct tog_parent_tree *parent;
7835 parent = TAILQ_FIRST(&s->parents);
7836 TAILQ_REMOVE(&s->parents, parent, entry);
7837 if (parent->tree != s->root)
7838 got_object_tree_close(parent->tree);
7839 free(parent);
7840
7841 }
7842 if (s->tree != NULL && s->tree != s->root)
7843 got_object_tree_close(s->tree);
7844 if (s->root)
7845 got_object_tree_close(s->root);
7846 return NULL;
7847 }
7848
7849 static const struct got_error *
7850 search_start_tree_view(struct tog_view *view)
7851 {
7852 struct tog_tree_view_state *s = &view->state.tree;
7853
7854 s->matched_entry = NULL;
7855 return NULL;
7856 }
7857
7858 static int
7859 match_tree_entry(struct got_tree_entry *te, regex_t *regex)
7860 {
7861 regmatch_t regmatch;
7862
7863 return regexec(regex, got_tree_entry_get_name(te), 1, &regmatch,
7864 0) == 0;
7865 }
7866
7867 static const struct got_error *
7868 search_next_tree_view(struct tog_view *view)
7869 {
7870 struct tog_tree_view_state *s = &view->state.tree;
7871 struct got_tree_entry *te = NULL;
7872
7873 if (!view->searching) {
7874 view->search_next_done = TOG_SEARCH_HAVE_MORE;
7875 return NULL;
7876 }
7877
7878 if (s->matched_entry) {
7879 if (view->searching == TOG_SEARCH_FORWARD) {
7880 if (s->selected_entry)
7881 te = got_tree_entry_get_next(s->tree,
7882 s->selected_entry);
7883 else
7884 te = got_object_tree_get_first_entry(s->tree);
7885 } else {
7886 if (s->selected_entry == NULL)
7887 te = got_object_tree_get_last_entry(s->tree);
7888 else
7889 te = got_tree_entry_get_prev(s->tree,
7890 s->selected_entry);
7891 }
7892 } else {
7893 if (s->selected_entry)
7894 te = s->selected_entry;
7895 else if (view->searching == TOG_SEARCH_FORWARD)
7896 te = got_object_tree_get_first_entry(s->tree);
7897 else
7898 te = got_object_tree_get_last_entry(s->tree);
7899 }
7900
7901 while (1) {
7902 if (te == NULL) {
7903 if (s->matched_entry == NULL) {
7904 view->search_next_done = TOG_SEARCH_HAVE_MORE;
7905 return NULL;
7906 }
7907 if (view->searching == TOG_SEARCH_FORWARD)
7908 te = got_object_tree_get_first_entry(s->tree);
7909 else
7910 te = got_object_tree_get_last_entry(s->tree);
7911 }
7912
7913 if (match_tree_entry(te, &view->regex)) {
7914 view->search_next_done = TOG_SEARCH_HAVE_MORE;
7915 s->matched_entry = te;
7916 break;
7917 }
7918
7919 if (view->searching == TOG_SEARCH_FORWARD)
7920 te = got_tree_entry_get_next(s->tree, te);
7921 else
7922 te = got_tree_entry_get_prev(s->tree, te);
7923 }
7924
7925 if (s->matched_entry) {
7926 s->first_displayed_entry = s->matched_entry;
7927 s->selected = 0;
7928 }
7929
7930 return NULL;
7931 }
7932
7933 static const struct got_error *
7934 show_tree_view(struct tog_view *view)
7935 {
7936 const struct got_error *err = NULL;
7937 struct tog_tree_view_state *s = &view->state.tree;
7938 char *parent_path;
7939
7940 err = tree_entry_path(&parent_path, &s->parents, NULL);
7941 if (err)
7942 return err;
7943
7944 err = draw_tree_entries(view, parent_path);
7945 free(parent_path);
7946
7947 view_border(view);
7948 return err;
7949 }
7950
7951 static const struct got_error *
7952 tree_goto_line(struct tog_view *view, int nlines)
7953 {
7954 const struct got_error *err = NULL;
7955 struct tog_tree_view_state *s = &view->state.tree;
7956 struct got_tree_entry **fte, **lte, **ste;
7957 int g, last, first = 1, i = 1;
7958 int root = s->tree == s->root;
7959 int off = root ? 1 : 2;
7960
7961 g = view->gline;
7962 view->gline = 0;
7963
7964 if (g == 0)
7965 g = 1;
7966 else if (g > got_object_tree_get_nentries(s->tree))
7967 g = got_object_tree_get_nentries(s->tree) + (root ? 0 : 1);
7968
7969 fte = &s->first_displayed_entry;
7970 lte = &s->last_displayed_entry;
7971 ste = &s->selected_entry;
7972
7973 if (*fte != NULL) {
7974 first = got_tree_entry_get_index(*fte);
7975 first += off; /* account for ".." */
7976 }
7977 last = got_tree_entry_get_index(*lte);
7978 last += off;
7979
7980 if (g >= first && g <= last && g - first < nlines) {
7981 s->selected = g - first;
7982 return NULL; /* gline is on the current page */
7983 }
7984
7985 if (*ste != NULL) {
7986 i = got_tree_entry_get_index(*ste);
7987 i += off;
7988 }
7989
7990 if (i < g) {
7991 err = tree_scroll_down(view, g - i);
7992 if (err)
7993 return err;
7994 if (got_tree_entry_get_index(*lte) >=
7995 got_object_tree_get_nentries(s->tree) - 1 &&
7996 first + s->selected < g &&
7997 s->selected < s->ndisplayed - 1) {
7998 first = got_tree_entry_get_index(*fte);
7999 first += off;
8000 s->selected = g - first;
8001 }
8002 } else if (i > g)
8003 tree_scroll_up(s, i - g);
8004
8005 if (g < nlines &&
8006 (*fte == NULL || (root && !got_tree_entry_get_index(*fte))))
8007 s->selected = g - 1;
8008
8009 return NULL;
8010 }
8011
8012 static const struct got_error *
8013 input_tree_view(struct tog_view **new_view, struct tog_view *view, int ch)
8014 {
8015 const struct got_error *err = NULL;
8016 struct tog_tree_view_state *s = &view->state.tree;
8017 struct got_tree_entry *te;
8018 int n, nscroll = view->nlines - 3;
8019
8020 if (view->gline)
8021 return tree_goto_line(view, nscroll);
8022
8023 switch (ch) {
8024 case '0':
8025 case '$':
8026 case KEY_RIGHT:
8027 case 'l':
8028 case KEY_LEFT:
8029 case 'h':
8030 horizontal_scroll_input(view, ch);
8031 break;
8032 case 'i':
8033 s->show_ids = !s->show_ids;
8034 view->count = 0;
8035 break;
8036 case 'L':
8037 view->count = 0;
8038 if (!s->selected_entry)
8039 break;
8040 err = view_request_new(new_view, view, TOG_VIEW_LOG);
8041 break;
8042 case 'R':
8043 view->count = 0;
8044 err = view_request_new(new_view, view, TOG_VIEW_REF);
8045 break;
8046 case 'g':
8047 case '=':
8048 case KEY_HOME:
8049 s->selected = 0;
8050 view->count = 0;
8051 if (s->tree == s->root)
8052 s->first_displayed_entry =
8053 got_object_tree_get_first_entry(s->tree);
8054 else
8055 s->first_displayed_entry = NULL;
8056 break;
8057 case 'G':
8058 case '*':
8059 case KEY_END: {
8060 int eos = view->nlines - 3;
8061
8062 if (view->mode == TOG_VIEW_SPLIT_HRZN)
8063 --eos; /* border */
8064 s->selected = 0;
8065 view->count = 0;
8066 te = got_object_tree_get_last_entry(s->tree);
8067 for (n = 0; n < eos; n++) {
8068 if (te == NULL) {
8069 if (s->tree != s->root) {
8070 s->first_displayed_entry = NULL;
8071 n++;
8072 }
8073 break;
8074 }
8075 s->first_displayed_entry = te;
8076 te = got_tree_entry_get_prev(s->tree, te);
8077 }
8078 if (n > 0)
8079 s->selected = n - 1;
8080 break;
8081 }
8082 case 'k':
8083 case KEY_UP:
8084 case CTRL('p'):
8085 if (s->selected > 0) {
8086 s->selected--;
8087 break;
8088 }
8089 tree_scroll_up(s, 1);
8090 if (s->selected_entry == NULL ||
8091 (s->tree == s->root && s->selected_entry ==
8092 got_object_tree_get_first_entry(s->tree)))
8093 view->count = 0;
8094 break;
8095 case CTRL('u'):
8096 case 'u':
8097 nscroll /= 2;
8098 /* FALL THROUGH */
8099 case KEY_PPAGE:
8100 case CTRL('b'):
8101 case 'b':
8102 if (s->tree == s->root) {
8103 if (got_object_tree_get_first_entry(s->tree) ==
8104 s->first_displayed_entry)
8105 s->selected -= MIN(s->selected, nscroll);
8106 } else {
8107 if (s->first_displayed_entry == NULL)
8108 s->selected -= MIN(s->selected, nscroll);
8109 }
8110 tree_scroll_up(s, MAX(0, nscroll));
8111 if (s->selected_entry == NULL ||
8112 (s->tree == s->root && s->selected_entry ==
8113 got_object_tree_get_first_entry(s->tree)))
8114 view->count = 0;
8115 break;
8116 case 'j':
8117 case KEY_DOWN:
8118 case CTRL('n'):
8119 if (s->selected < s->ndisplayed - 1) {
8120 s->selected++;
8121 break;
8122 }
8123 if (got_tree_entry_get_next(s->tree, s->last_displayed_entry)
8124 == NULL) {
8125 /* can't scroll any further */
8126 view->count = 0;
8127 break;
8128 }
8129 tree_scroll_down(view, 1);
8130 break;
8131 case CTRL('d'):
8132 case 'd':
8133 nscroll /= 2;
8134 /* FALL THROUGH */
8135 case KEY_NPAGE:
8136 case CTRL('f'):
8137 case 'f':
8138 case ' ':
8139 if (got_tree_entry_get_next(s->tree, s->last_displayed_entry)
8140 == NULL) {
8141 /* can't scroll any further; move cursor down */
8142 if (s->selected < s->ndisplayed - 1)
8143 s->selected += MIN(nscroll,
8144 s->ndisplayed - s->selected - 1);
8145 else
8146 view->count = 0;
8147 break;
8148 }
8149 tree_scroll_down(view, nscroll);
8150 break;
8151 case KEY_ENTER:
8152 case '\r':
8153 case KEY_BACKSPACE:
8154 if (s->selected_entry == NULL || ch == KEY_BACKSPACE) {
8155 struct tog_parent_tree *parent;
8156 /* user selected '..' */
8157 if (s->tree == s->root) {
8158 view->count = 0;
8159 break;
8160 }
8161 parent = TAILQ_FIRST(&s->parents);
8162 TAILQ_REMOVE(&s->parents, parent,
8163 entry);
8164 got_object_tree_close(s->tree);
8165 s->tree = parent->tree;
8166 s->first_displayed_entry =
8167 parent->first_displayed_entry;
8168 s->selected_entry =
8169 parent->selected_entry;
8170 s->selected = parent->selected;
8171 if (s->selected > view->nlines - 3) {
8172 err = offset_selection_down(view);
8173 if (err)
8174 break;
8175 }
8176 free(parent);
8177 } else if (S_ISDIR(got_tree_entry_get_mode(
8178 s->selected_entry))) {
8179 struct got_tree_object *subtree;
8180 view->count = 0;
8181 err = got_object_open_as_tree(&subtree, s->repo,
8182 got_tree_entry_get_id(s->selected_entry));
8183 if (err)
8184 break;
8185 err = tree_view_visit_subtree(s, subtree);
8186 if (err) {
8187 got_object_tree_close(subtree);
8188 break;
8189 }
8190 } else if (S_ISREG(got_tree_entry_get_mode(s->selected_entry)))
8191 err = view_request_new(new_view, view, TOG_VIEW_BLAME);
8192 break;
8193 case KEY_RESIZE:
8194 if (view->nlines >= 4 && s->selected >= view->nlines - 3)
8195 s->selected = view->nlines - 4;
8196 view->count = 0;
8197 break;
8198 default:
8199 view->count = 0;
8200 break;
8201 }
8202
8203 return err;
8204 }
8205
8206 __dead static void
8207 usage_tree(void)
8208 {
8209 endwin();
8210 fprintf(stderr,
8211 "usage: %s tree [-c commit] [-r repository-path] [path]\n",
8212 getprogname());
8213 exit(1);
8214 }
8215
8216 static const struct got_error *
8217 cmd_tree(int argc, char *argv[])
8218 {
8219 const struct got_error *error;
8220 struct got_repository *repo = NULL;
8221 struct got_worktree *worktree = NULL;
8222 char *cwd = NULL, *repo_path = NULL, *in_repo_path = NULL;
8223 struct got_object_id *commit_id = NULL;
8224 struct got_commit_object *commit = NULL;
8225 const char *commit_id_arg = NULL;
8226 char *keyword_idstr = NULL, *label = NULL;
8227 struct got_reference *ref = NULL;
8228 const char *head_ref_name = NULL;
8229 int ch;
8230 struct tog_view *view;
8231 int *pack_fds = NULL;
8232
8233 while ((ch = getopt(argc, argv, "c:r:")) != -1) {
8234 switch (ch) {
8235 case 'c':
8236 commit_id_arg = optarg;
8237 break;
8238 case 'r':
8239 repo_path = realpath(optarg, NULL);
8240 if (repo_path == NULL)
8241 return got_error_from_errno2("realpath",
8242 optarg);
8243 break;
8244 default:
8245 usage_tree();
8246 /* NOTREACHED */
8247 }
8248 }
8249
8250 argc -= optind;
8251 argv += optind;
8252
8253 if (argc > 1)
8254 usage_tree();
8255
8256 error = got_repo_pack_fds_open(&pack_fds);
8257 if (error != NULL)
8258 goto done;
8259
8260 if (repo_path == NULL) {
8261 cwd = getcwd(NULL, 0);
8262 if (cwd == NULL)
8263 return got_error_from_errno("getcwd");
8264 error = got_worktree_open(&worktree, cwd, NULL);
8265 if (error && error->code != GOT_ERR_NOT_WORKTREE)
8266 goto done;
8267 if (worktree)
8268 repo_path =
8269 strdup(got_worktree_get_repo_path(worktree));
8270 else
8271 repo_path = strdup(cwd);
8272 if (repo_path == NULL) {
8273 error = got_error_from_errno("strdup");
8274 goto done;
8275 }
8276 }
8277
8278 error = got_repo_open(&repo, repo_path, NULL, pack_fds);
8279 if (error != NULL)
8280 goto done;
8281
8282 error = get_in_repo_path_from_argv0(&in_repo_path, argc, argv,
8283 repo, worktree);
8284 if (error)
8285 goto done;
8286
8287 init_curses();
8288
8289 error = apply_unveil(got_repo_get_path(repo), NULL);
8290 if (error)
8291 goto done;
8292
8293 error = tog_load_refs(repo, 0);
8294 if (error)
8295 goto done;
8296
8297 if (commit_id_arg == NULL) {
8298 error = got_repo_match_object_id(&commit_id, &label,
8299 worktree ? got_worktree_get_head_ref_name(worktree) :
8300 GOT_REF_HEAD, GOT_OBJ_TYPE_COMMIT, &tog_refs, repo);
8301 if (error)
8302 goto done;
8303 head_ref_name = label;
8304 } else {
8305 error = got_keyword_to_idstr(&keyword_idstr, commit_id_arg,
8306 repo, worktree);
8307 if (error != NULL)
8308 goto done;
8309 if (keyword_idstr != NULL)
8310 commit_id_arg = keyword_idstr;
8311
8312 error = got_ref_open(&ref, repo, commit_id_arg, 0);
8313 if (error == NULL)
8314 head_ref_name = got_ref_get_name(ref);
8315 else if (error->code != GOT_ERR_NOT_REF)
8316 goto done;
8317 error = got_repo_match_object_id(&commit_id, NULL,
8318 commit_id_arg, GOT_OBJ_TYPE_COMMIT, &tog_refs, repo);
8319 if (error)
8320 goto done;
8321 }
8322
8323 error = got_object_open_as_commit(&commit, repo, commit_id);
8324 if (error)
8325 goto done;
8326
8327 view = view_open(0, 0, 0, 0, TOG_VIEW_TREE);
8328 if (view == NULL) {
8329 error = got_error_from_errno("view_open");
8330 goto done;
8331 }
8332 error = open_tree_view(view, commit_id, head_ref_name, repo);
8333 if (error)
8334 goto done;
8335 if (!got_path_is_root_dir(in_repo_path)) {
8336 error = tree_view_walk_path(&view->state.tree, commit,
8337 in_repo_path);
8338 if (error)
8339 goto done;
8340 }
8341
8342 if (worktree) {
8343 error = set_tog_base_commit(repo, worktree);
8344 if (error != NULL)
8345 goto done;
8346
8347 /* Release work tree lock. */
8348 got_worktree_close(worktree);
8349 worktree = NULL;
8350 }
8351
8352 error = view_loop(view);
8353
8354 done:
8355 free(tog_base_commit.id);
8356 free(keyword_idstr);
8357 free(repo_path);
8358 free(cwd);
8359 free(commit_id);
8360 free(label);
8361 if (ref)
8362 got_ref_close(ref);
8363 if (worktree != NULL)
8364 got_worktree_close(worktree);
8365 if (repo) {
8366 const struct got_error *close_err = got_repo_close(repo);
8367 if (error == NULL)
8368 error = close_err;
8369 }
8370 if (pack_fds) {
8371 const struct got_error *pack_err =
8372 got_repo_pack_fds_close(pack_fds);
8373 if (error == NULL)
8374 error = pack_err;
8375 }
8376 tog_free_refs();
8377 return error;
8378 }
8379
8380 static const struct got_error *
8381 ref_view_load_refs(struct tog_ref_view_state *s)
8382 {
8383 struct got_reflist_entry *sre;
8384 struct tog_reflist_entry *re;
8385
8386 s->nrefs = 0;
8387 TAILQ_FOREACH(sre, &tog_refs, entry) {
8388 if (strncmp(got_ref_get_name(sre->ref),
8389 "refs/got/", 9) == 0 &&
8390 strncmp(got_ref_get_name(sre->ref),
8391 "refs/got/backup/", 16) != 0)
8392 continue;
8393
8394 re = malloc(sizeof(*re));
8395 if (re == NULL)
8396 return got_error_from_errno("malloc");
8397
8398 re->ref = got_ref_dup(sre->ref);
8399 if (re->ref == NULL)
8400 return got_error_from_errno("got_ref_dup");
8401 re->idx = s->nrefs++;
8402 TAILQ_INSERT_TAIL(&s->refs, re, entry);
8403 }
8404
8405 s->first_displayed_entry = TAILQ_FIRST(&s->refs);
8406 return NULL;
8407 }
8408
8409 static void
8410 ref_view_free_refs(struct tog_ref_view_state *s)
8411 {
8412 struct tog_reflist_entry *re;
8413
8414 while (!TAILQ_EMPTY(&s->refs)) {
8415 re = TAILQ_FIRST(&s->refs);
8416 TAILQ_REMOVE(&s->refs, re, entry);
8417 got_ref_close(re->ref);
8418 free(re);
8419 }
8420 }
8421
8422 static const struct got_error *
8423 open_ref_view(struct tog_view *view, struct got_repository *repo)
8424 {
8425 const struct got_error *err = NULL;
8426 struct tog_ref_view_state *s = &view->state.ref;
8427
8428 s->selected_entry = 0;
8429 s->repo = repo;
8430
8431 TAILQ_INIT(&s->refs);
8432 STAILQ_INIT(&s->colors);
8433
8434 err = ref_view_load_refs(s);
8435 if (err)
8436 goto done;
8437
8438 if (has_colors() && getenv("TOG_COLORS") != NULL) {
8439 err = add_color(&s->colors, "^refs/heads/",
8440 TOG_COLOR_REFS_HEADS,
8441 get_color_value("TOG_COLOR_REFS_HEADS"));
8442 if (err)
8443 goto done;
8444
8445 err = add_color(&s->colors, "^refs/tags/",
8446 TOG_COLOR_REFS_TAGS,
8447 get_color_value("TOG_COLOR_REFS_TAGS"));
8448 if (err)
8449 goto done;
8450
8451 err = add_color(&s->colors, "^refs/remotes/",
8452 TOG_COLOR_REFS_REMOTES,
8453 get_color_value("TOG_COLOR_REFS_REMOTES"));
8454 if (err)
8455 goto done;
8456
8457 err = add_color(&s->colors, "^refs/got/backup/",
8458 TOG_COLOR_REFS_BACKUP,
8459 get_color_value("TOG_COLOR_REFS_BACKUP"));
8460 if (err)
8461 goto done;
8462 }
8463
8464 view->show = show_ref_view;
8465 view->input = input_ref_view;
8466 view->close = close_ref_view;
8467 view->search_start = search_start_ref_view;
8468 view->search_next = search_next_ref_view;
8469 done:
8470 if (err) {
8471 if (view->close == NULL)
8472 close_ref_view(view);
8473 view_close(view);
8474 }
8475 return err;
8476 }
8477
8478 static const struct got_error *
8479 close_ref_view(struct tog_view *view)
8480 {
8481 struct tog_ref_view_state *s = &view->state.ref;
8482
8483 ref_view_free_refs(s);
8484 free_colors(&s->colors);
8485
8486 return NULL;
8487 }
8488
8489 static const struct got_error *
8490 resolve_reflist_entry(struct got_object_id **commit_id,
8491 struct tog_reflist_entry *re, struct got_repository *repo)
8492 {
8493 const struct got_error *err = NULL;
8494 struct got_object_id *obj_id;
8495 struct got_tag_object *tag = NULL;
8496 int obj_type;
8497
8498 *commit_id = NULL;
8499
8500 err = got_ref_resolve(&obj_id, repo, re->ref);
8501 if (err)
8502 return err;
8503
8504 err = got_object_get_type(&obj_type, repo, obj_id);
8505 if (err)
8506 goto done;
8507
8508 switch (obj_type) {
8509 case GOT_OBJ_TYPE_COMMIT:
8510 *commit_id = obj_id;
8511 break;
8512 case GOT_OBJ_TYPE_TAG:
8513 err = got_object_open_as_tag(&tag, repo, obj_id);
8514 if (err)
8515 goto done;
8516 free(obj_id);
8517 err = got_object_get_type(&obj_type, repo,
8518 got_object_tag_get_object_id(tag));
8519 if (err)
8520 goto done;
8521 if (obj_type != GOT_OBJ_TYPE_COMMIT) {
8522 err = got_error(GOT_ERR_OBJ_TYPE);
8523 goto done;
8524 }
8525 *commit_id = got_object_id_dup(
8526 got_object_tag_get_object_id(tag));
8527 if (*commit_id == NULL) {
8528 err = got_error_from_errno("got_object_id_dup");
8529 goto done;
8530 }
8531 break;
8532 default:
8533 err = got_error(GOT_ERR_OBJ_TYPE);
8534 break;
8535 }
8536
8537 done:
8538 if (tag)
8539 got_object_tag_close(tag);
8540 if (err) {
8541 free(*commit_id);
8542 *commit_id = NULL;
8543 }
8544 return err;
8545 }
8546
8547 static const struct got_error *
8548 log_ref_entry(struct tog_view **new_view, int begin_y, int begin_x,
8549 struct tog_reflist_entry *re, struct got_repository *repo)
8550 {
8551 struct tog_view *log_view;
8552 const struct got_error *err = NULL;
8553 struct got_object_id *commit_id = NULL;
8554
8555 *new_view = NULL;
8556
8557 err = resolve_reflist_entry(&commit_id, re, repo);
8558 if (err) {
8559 if (err->code != GOT_ERR_OBJ_TYPE)
8560 return err;
8561 else
8562 return NULL;
8563 }
8564
8565 log_view = view_open(0, 0, begin_y, begin_x, TOG_VIEW_LOG);
8566 if (log_view == NULL) {
8567 err = got_error_from_errno("view_open");
8568 goto done;
8569 }
8570
8571 err = open_log_view(log_view, commit_id, repo,
8572 got_ref_get_name(re->ref), "", 0, NULL);
8573 done:
8574 if (err)
8575 view_close(log_view);
8576 else
8577 *new_view = log_view;
8578 free(commit_id);
8579 return err;
8580 }
8581
8582 static void
8583 ref_scroll_up(struct tog_ref_view_state *s, int maxscroll)
8584 {
8585 struct tog_reflist_entry *re;
8586 int i = 0;
8587
8588 if (s->first_displayed_entry == TAILQ_FIRST(&s->refs))
8589 return;
8590
8591 re = TAILQ_PREV(s->first_displayed_entry, tog_reflist_head, entry);
8592 while (i++ < maxscroll) {
8593 if (re == NULL)
8594 break;
8595 s->first_displayed_entry = re;
8596 re = TAILQ_PREV(re, tog_reflist_head, entry);
8597 }
8598 }
8599
8600 static const struct got_error *
8601 ref_scroll_down(struct tog_view *view, int maxscroll)
8602 {
8603 struct tog_ref_view_state *s = &view->state.ref;
8604 struct tog_reflist_entry *next, *last;
8605 int n = 0;
8606
8607 if (s->first_displayed_entry)
8608 next = TAILQ_NEXT(s->first_displayed_entry, entry);
8609 else
8610 next = TAILQ_FIRST(&s->refs);
8611
8612 last = s->last_displayed_entry;
8613 while (next && n++ < maxscroll) {
8614 if (last) {
8615 s->last_displayed_entry = last;
8616 last = TAILQ_NEXT(last, entry);
8617 }
8618 if (last || (view->mode == TOG_VIEW_SPLIT_HRZN)) {
8619 s->first_displayed_entry = next;
8620 next = TAILQ_NEXT(next, entry);
8621 }
8622 }
8623
8624 return NULL;
8625 }
8626
8627 static const struct got_error *
8628 search_start_ref_view(struct tog_view *view)
8629 {
8630 struct tog_ref_view_state *s = &view->state.ref;
8631
8632 s->matched_entry = NULL;
8633 return NULL;
8634 }
8635
8636 static int
8637 match_reflist_entry(struct tog_reflist_entry *re, regex_t *regex)
8638 {
8639 regmatch_t regmatch;
8640
8641 return regexec(regex, got_ref_get_name(re->ref), 1, &regmatch,
8642 0) == 0;
8643 }
8644
8645 static const struct got_error *
8646 search_next_ref_view(struct tog_view *view)
8647 {
8648 struct tog_ref_view_state *s = &view->state.ref;
8649 struct tog_reflist_entry *re = NULL;
8650
8651 if (!view->searching) {
8652 view->search_next_done = TOG_SEARCH_HAVE_MORE;
8653 return NULL;
8654 }
8655
8656 if (s->matched_entry) {
8657 if (view->searching == TOG_SEARCH_FORWARD) {
8658 if (s->selected_entry)
8659 re = TAILQ_NEXT(s->selected_entry, entry);
8660 else
8661 re = TAILQ_PREV(s->selected_entry,
8662 tog_reflist_head, entry);
8663 } else {
8664 if (s->selected_entry == NULL)
8665 re = TAILQ_LAST(&s->refs, tog_reflist_head);
8666 else
8667 re = TAILQ_PREV(s->selected_entry,
8668 tog_reflist_head, entry);
8669 }
8670 } else {
8671 if (s->selected_entry)
8672 re = s->selected_entry;
8673 else if (view->searching == TOG_SEARCH_FORWARD)
8674 re = TAILQ_FIRST(&s->refs);
8675 else
8676 re = TAILQ_LAST(&s->refs, tog_reflist_head);
8677 }
8678
8679 while (1) {
8680 if (re == NULL) {
8681 if (s->matched_entry == NULL) {
8682 view->search_next_done = TOG_SEARCH_HAVE_MORE;
8683 return NULL;
8684 }
8685 if (view->searching == TOG_SEARCH_FORWARD)
8686 re = TAILQ_FIRST(&s->refs);
8687 else
8688 re = TAILQ_LAST(&s->refs, tog_reflist_head);
8689 }
8690
8691 if (match_reflist_entry(re, &view->regex)) {
8692 view->search_next_done = TOG_SEARCH_HAVE_MORE;
8693 s->matched_entry = re;
8694 break;
8695 }
8696
8697 if (view->searching == TOG_SEARCH_FORWARD)
8698 re = TAILQ_NEXT(re, entry);
8699 else
8700 re = TAILQ_PREV(re, tog_reflist_head, entry);
8701 }
8702
8703 if (s->matched_entry) {
8704 s->first_displayed_entry = s->matched_entry;
8705 s->selected = 0;
8706 }
8707
8708 return NULL;
8709 }
8710
8711 static const struct got_error *
8712 show_ref_view(struct tog_view *view)
8713 {
8714 const struct got_error *err = NULL;
8715 struct tog_ref_view_state *s = &view->state.ref;
8716 struct tog_reflist_entry *re;
8717 char *line = NULL;
8718 wchar_t *wline;
8719 struct tog_color *tc;
8720 int width, n, scrollx;
8721 int limit = view->nlines;
8722
8723 werase(view->window);
8724
8725 s->ndisplayed = 0;
8726 if (view_is_hsplit_top(view))
8727 --limit; /* border */
8728
8729 if (limit == 0)
8730 return NULL;
8731
8732 re = s->first_displayed_entry;
8733
8734 if (asprintf(&line, "references [%d/%d]", re->idx + s->selected + 1,
8735 s->nrefs) == -1)
8736 return got_error_from_errno("asprintf");
8737
8738 err = format_line(&wline, &width, NULL, line, 0, view->ncols, 0, 0);
8739 if (err) {
8740 free(line);
8741 return err;
8742 }
8743 if (view_needs_focus_indication(view))
8744 wstandout(view->window);
8745 waddwstr(view->window, wline);
8746 while (width++ < view->ncols)
8747 waddch(view->window, ' ');
8748 if (view_needs_focus_indication(view))
8749 wstandend(view->window);
8750 free(wline);
8751 wline = NULL;
8752 free(line);
8753 line = NULL;
8754 if (--limit <= 0)
8755 return NULL;
8756
8757 n = 0;
8758 view->maxx = 0;
8759 while (re && limit > 0) {
8760 char *line = NULL;
8761 char ymd[13]; /* YYYY-MM-DD + " " + NUL */
8762
8763 if (s->show_date) {
8764 struct got_commit_object *ci;
8765 struct got_tag_object *tag;
8766 struct got_object_id *id;
8767 struct tm tm;
8768 time_t t;
8769
8770 err = got_ref_resolve(&id, s->repo, re->ref);
8771 if (err)
8772 return err;
8773 err = got_object_open_as_tag(&tag, s->repo, id);
8774 if (err) {
8775 if (err->code != GOT_ERR_OBJ_TYPE) {
8776 free(id);
8777 return err;
8778 }
8779 err = got_object_open_as_commit(&ci, s->repo,
8780 id);
8781 if (err) {
8782 free(id);
8783 return err;
8784 }
8785 t = got_object_commit_get_committer_time(ci);
8786 got_object_commit_close(ci);
8787 } else {
8788 t = got_object_tag_get_tagger_time(tag);
8789 got_object_tag_close(tag);
8790 }
8791 free(id);
8792 if (gmtime_r(&t, &tm) == NULL)
8793 return got_error_from_errno("gmtime_r");
8794 if (strftime(ymd, sizeof(ymd), "%G-%m-%d ", &tm) == 0)
8795 return got_error(GOT_ERR_NO_SPACE);
8796 }
8797 if (got_ref_is_symbolic(re->ref)) {
8798 if (asprintf(&line, "%s%s -> %s", s->show_date ?
8799 ymd : "", got_ref_get_name(re->ref),
8800 got_ref_get_symref_target(re->ref)) == -1)
8801 return got_error_from_errno("asprintf");
8802 } else if (s->show_ids) {
8803 struct got_object_id *id;
8804 char *id_str;
8805 err = got_ref_resolve(&id, s->repo, re->ref);
8806 if (err)
8807 return err;
8808 err = got_object_id_str(&id_str, id);
8809 if (err) {
8810 free(id);
8811 return err;
8812 }
8813 if (asprintf(&line, "%s%s: %s", s->show_date ? ymd : "",
8814 got_ref_get_name(re->ref), id_str) == -1) {
8815 err = got_error_from_errno("asprintf");
8816 free(id);
8817 free(id_str);
8818 return err;
8819 }
8820 free(id);
8821 free(id_str);
8822 } else if (asprintf(&line, "%s%s", s->show_date ? ymd : "",
8823 got_ref_get_name(re->ref)) == -1)
8824 return got_error_from_errno("asprintf");
8825
8826 /* use full line width to determine view->maxx */
8827 err = format_line(&wline, &width, NULL, line, 0, INT_MAX, 0, 0);
8828 if (err) {
8829 free(line);
8830 return err;
8831 }
8832 view->maxx = MAX(view->maxx, width);
8833 free(wline);
8834 wline = NULL;
8835
8836 err = format_line(&wline, &width, &scrollx, line, view->x,
8837 view->ncols, 0, 0);
8838 if (err) {
8839 free(line);
8840 return err;
8841 }
8842 if (n == s->selected) {
8843 if (view->focussed)
8844 wstandout(view->window);
8845 s->selected_entry = re;
8846 }
8847 tc = match_color(&s->colors, got_ref_get_name(re->ref));
8848 if (tc)
8849 wattr_on(view->window,
8850 COLOR_PAIR(tc->colorpair), NULL);
8851 waddwstr(view->window, &wline[scrollx]);
8852 if (tc)
8853 wattr_off(view->window,
8854 COLOR_PAIR(tc->colorpair), NULL);
8855 if (width < view->ncols)
8856 waddch(view->window, '\n');
8857 if (n == s->selected && view->focussed)
8858 wstandend(view->window);
8859 free(line);
8860 free(wline);
8861 wline = NULL;
8862 n++;
8863 s->ndisplayed++;
8864 s->last_displayed_entry = re;
8865
8866 limit--;
8867 re = TAILQ_NEXT(re, entry);
8868 }
8869
8870 view_border(view);
8871 return err;
8872 }
8873
8874 static const struct got_error *
8875 browse_ref_tree(struct tog_view **new_view, int begin_y, int begin_x,
8876 struct tog_reflist_entry *re, struct got_repository *repo)
8877 {
8878 const struct got_error *err = NULL;
8879 struct got_object_id *commit_id = NULL;
8880 struct tog_view *tree_view;
8881
8882 *new_view = NULL;
8883
8884 err = resolve_reflist_entry(&commit_id, re, repo);
8885 if (err) {
8886 if (err->code != GOT_ERR_OBJ_TYPE)
8887 return err;
8888 else
8889 return NULL;
8890 }
8891
8892
8893 tree_view = view_open(0, 0, begin_y, begin_x, TOG_VIEW_TREE);
8894 if (tree_view == NULL) {
8895 err = got_error_from_errno("view_open");
8896 goto done;
8897 }
8898
8899 err = open_tree_view(tree_view, commit_id,
8900 got_ref_get_name(re->ref), repo);
8901 if (err)
8902 goto done;
8903
8904 *new_view = tree_view;
8905 done:
8906 free(commit_id);
8907 return err;
8908 }
8909
8910 static const struct got_error *
8911 ref_goto_line(struct tog_view *view, int nlines)
8912 {
8913 const struct got_error *err = NULL;
8914 struct tog_ref_view_state *s = &view->state.ref;
8915 int g, idx = s->selected_entry->idx;
8916
8917 g = view->gline;
8918 view->gline = 0;
8919
8920 if (g == 0)
8921 g = 1;
8922 else if (g > s->nrefs)
8923 g = s->nrefs;
8924
8925 if (g >= s->first_displayed_entry->idx + 1 &&
8926 g <= s->last_displayed_entry->idx + 1 &&
8927 g - s->first_displayed_entry->idx - 1 < nlines) {
8928 s->selected = g - s->first_displayed_entry->idx - 1;
8929 return NULL;
8930 }
8931
8932 if (idx + 1 < g) {
8933 err = ref_scroll_down(view, g - idx - 1);
8934 if (err)
8935 return err;
8936 if (TAILQ_NEXT(s->last_displayed_entry, entry) == NULL &&
8937 s->first_displayed_entry->idx + s->selected < g &&
8938 s->selected < s->ndisplayed - 1)
8939 s->selected = g - s->first_displayed_entry->idx - 1;
8940 } else if (idx + 1 > g)
8941 ref_scroll_up(s, idx - g + 1);
8942
8943 if (g < nlines && s->first_displayed_entry->idx == 0)
8944 s->selected = g - 1;
8945
8946 return NULL;
8947
8948 }
8949
8950 static const struct got_error *
8951 input_ref_view(struct tog_view **new_view, struct tog_view *view, int ch)
8952 {
8953 const struct got_error *err = NULL;
8954 struct tog_ref_view_state *s = &view->state.ref;
8955 struct tog_reflist_entry *re;
8956 int n, nscroll = view->nlines - 1;
8957
8958 if (view->gline)
8959 return ref_goto_line(view, nscroll);
8960
8961 switch (ch) {
8962 case '0':
8963 case '$':
8964 case KEY_RIGHT:
8965 case 'l':
8966 case KEY_LEFT:
8967 case 'h':
8968 horizontal_scroll_input(view, ch);
8969 break;
8970 case 'i':
8971 s->show_ids = !s->show_ids;
8972 view->count = 0;
8973 break;
8974 case 'm':
8975 s->show_date = !s->show_date;
8976 view->count = 0;
8977 break;
8978 case 'o':
8979 s->sort_by_date = !s->sort_by_date;
8980 view->action = s->sort_by_date ? "sort by date" : "sort by name";
8981 view->count = 0;
8982 err = got_reflist_sort(&tog_refs, s->sort_by_date ?
8983 got_ref_cmp_by_commit_timestamp_descending :
8984 tog_ref_cmp_by_name, s->repo);
8985 if (err)
8986 break;
8987 got_reflist_object_id_map_free(tog_refs_idmap);
8988 err = got_reflist_object_id_map_create(&tog_refs_idmap,
8989 &tog_refs, s->repo);
8990 if (err)
8991 break;
8992 ref_view_free_refs(s);
8993 err = ref_view_load_refs(s);
8994 break;
8995 case KEY_ENTER:
8996 case '\r':
8997 view->count = 0;
8998 if (!s->selected_entry)
8999 break;
9000 err = view_request_new(new_view, view, TOG_VIEW_LOG);
9001 break;
9002 case 'T':
9003 view->count = 0;
9004 if (!s->selected_entry)
9005 break;
9006 err = view_request_new(new_view, view, TOG_VIEW_TREE);
9007 break;
9008 case 'g':
9009 case '=':
9010 case KEY_HOME:
9011 s->selected = 0;
9012 view->count = 0;
9013 s->first_displayed_entry = TAILQ_FIRST(&s->refs);
9014 break;
9015 case 'G':
9016 case '*':
9017 case KEY_END: {
9018 int eos = view->nlines - 1;
9019
9020 if (view->mode == TOG_VIEW_SPLIT_HRZN)
9021 --eos; /* border */
9022 s->selected = 0;
9023 view->count = 0;
9024 re = TAILQ_LAST(&s->refs, tog_reflist_head);
9025 for (n = 0; n < eos; n++) {
9026 if (re == NULL)
9027 break;
9028 s->first_displayed_entry = re;
9029 re = TAILQ_PREV(re, tog_reflist_head, entry);
9030 }
9031 if (n > 0)
9032 s->selected = n - 1;
9033 break;
9034 }
9035 case 'k':
9036 case KEY_UP:
9037 case CTRL('p'):
9038 if (s->selected > 0) {
9039 s->selected--;
9040 break;
9041 }
9042 ref_scroll_up(s, 1);
9043 if (s->selected_entry == TAILQ_FIRST(&s->refs))
9044 view->count = 0;
9045 break;
9046 case CTRL('u'):
9047 case 'u':
9048 nscroll /= 2;
9049 /* FALL THROUGH */
9050 case KEY_PPAGE:
9051 case CTRL('b'):
9052 case 'b':
9053 if (s->first_displayed_entry == TAILQ_FIRST(&s->refs))
9054 s->selected -= MIN(nscroll, s->selected);
9055 ref_scroll_up(s, MAX(0, nscroll));
9056 if (s->selected_entry == TAILQ_FIRST(&s->refs))
9057 view->count = 0;
9058 break;
9059 case 'j':
9060 case KEY_DOWN:
9061 case CTRL('n'):
9062 if (s->selected < s->ndisplayed - 1) {
9063 s->selected++;
9064 break;
9065 }
9066 if (TAILQ_NEXT(s->last_displayed_entry, entry) == NULL) {
9067 /* can't scroll any further */
9068 view->count = 0;
9069 break;
9070 }
9071 ref_scroll_down(view, 1);
9072 break;
9073 case CTRL('d'):
9074 case 'd':
9075 nscroll /= 2;
9076 /* FALL THROUGH */
9077 case KEY_NPAGE:
9078 case CTRL('f'):
9079 case 'f':
9080 case ' ':
9081 if (TAILQ_NEXT(s->last_displayed_entry, entry) == NULL) {
9082 /* can't scroll any further; move cursor down */
9083 if (s->selected < s->ndisplayed - 1)
9084 s->selected += MIN(nscroll,
9085 s->ndisplayed - s->selected - 1);
9086 if (view->count > 1 && s->selected < s->ndisplayed - 1)
9087 s->selected += s->ndisplayed - s->selected - 1;
9088 view->count = 0;
9089 break;
9090 }
9091 ref_scroll_down(view, nscroll);
9092 break;
9093 case CTRL('l'):
9094 view->count = 0;
9095 tog_free_refs();
9096 err = tog_load_refs(s->repo, s->sort_by_date);
9097 if (err)
9098 break;
9099 ref_view_free_refs(s);
9100 err = ref_view_load_refs(s);
9101 break;
9102 case KEY_RESIZE:
9103 if (view->nlines >= 2 && s->selected >= view->nlines - 1)
9104 s->selected = view->nlines - 2;
9105 break;
9106 default:
9107 view->count = 0;
9108 break;
9109 }
9110
9111 return err;
9112 }
9113
9114 __dead static void
9115 usage_ref(void)
9116 {
9117 endwin();
9118 fprintf(stderr, "usage: %s ref [-r repository-path]\n",
9119 getprogname());
9120 exit(1);
9121 }
9122
9123 static const struct got_error *
9124 cmd_ref(int argc, char *argv[])
9125 {
9126 const struct got_error *error;
9127 struct got_repository *repo = NULL;
9128 struct got_worktree *worktree = NULL;
9129 char *cwd = NULL, *repo_path = NULL;
9130 int ch;
9131 struct tog_view *view;
9132 int *pack_fds = NULL;
9133
9134 while ((ch = getopt(argc, argv, "r:")) != -1) {
9135 switch (ch) {
9136 case 'r':
9137 repo_path = realpath(optarg, NULL);
9138 if (repo_path == NULL)
9139 return got_error_from_errno2("realpath",
9140 optarg);
9141 break;
9142 default:
9143 usage_ref();
9144 /* NOTREACHED */
9145 }
9146 }
9147
9148 argc -= optind;
9149 argv += optind;
9150
9151 if (argc > 1)
9152 usage_ref();
9153
9154 error = got_repo_pack_fds_open(&pack_fds);
9155 if (error != NULL)
9156 goto done;
9157
9158 if (repo_path == NULL) {
9159 cwd = getcwd(NULL, 0);
9160 if (cwd == NULL)
9161 return got_error_from_errno("getcwd");
9162 error = got_worktree_open(&worktree, cwd, NULL);
9163 if (error && error->code != GOT_ERR_NOT_WORKTREE)
9164 goto done;
9165 if (worktree)
9166 repo_path =
9167 strdup(got_worktree_get_repo_path(worktree));
9168 else
9169 repo_path = strdup(cwd);
9170 if (repo_path == NULL) {
9171 error = got_error_from_errno("strdup");
9172 goto done;
9173 }
9174 }
9175
9176 error = got_repo_open(&repo, repo_path, NULL, pack_fds);
9177 if (error != NULL)
9178 goto done;
9179
9180 init_curses();
9181
9182 error = apply_unveil(got_repo_get_path(repo), NULL);
9183 if (error)
9184 goto done;
9185
9186 error = tog_load_refs(repo, 0);
9187 if (error)
9188 goto done;
9189
9190 view = view_open(0, 0, 0, 0, TOG_VIEW_REF);
9191 if (view == NULL) {
9192 error = got_error_from_errno("view_open");
9193 goto done;
9194 }
9195
9196 error = open_ref_view(view, repo);
9197 if (error)
9198 goto done;
9199
9200 if (worktree) {
9201 error = set_tog_base_commit(repo, worktree);
9202 if (error != NULL)
9203 goto done;
9204
9205 /* Release work tree lock. */
9206 got_worktree_close(worktree);
9207 worktree = NULL;
9208 }
9209
9210 error = view_loop(view);
9211
9212 done:
9213 free(tog_base_commit.id);
9214 free(repo_path);
9215 free(cwd);
9216 if (worktree != NULL)
9217 got_worktree_close(worktree);
9218 if (repo) {
9219 const struct got_error *close_err = got_repo_close(repo);
9220 if (close_err)
9221 error = close_err;
9222 }
9223 if (pack_fds) {
9224 const struct got_error *pack_err =
9225 got_repo_pack_fds_close(pack_fds);
9226 if (error == NULL)
9227 error = pack_err;
9228 }
9229 tog_free_refs();
9230 return error;
9231 }
9232
9233 static const struct got_error*
9234 win_draw_center(WINDOW *win, size_t y, size_t x, size_t maxx, int focus,
9235 const char *str)
9236 {
9237 size_t len;
9238
9239 if (win == NULL)
9240 win = stdscr;
9241
9242 len = strlen(str);
9243 x = x ? x : maxx > len ? (maxx - len) / 2 : 0;
9244
9245 if (focus)
9246 wstandout(win);
9247 if (mvwprintw(win, y, x, "%s", str) == ERR)
9248 return got_error_msg(GOT_ERR_RANGE, "mvwprintw");
9249 if (focus)
9250 wstandend(win);
9251
9252 return NULL;
9253 }
9254
9255 static const struct got_error *
9256 add_line_offset(off_t **line_offsets, size_t *nlines, off_t off)
9257 {
9258 off_t *p;
9259
9260 p = reallocarray(*line_offsets, *nlines + 1, sizeof(off_t));
9261 if (p == NULL) {
9262 free(*line_offsets);
9263 *line_offsets = NULL;
9264 return got_error_from_errno("reallocarray");
9265 }
9266
9267 *line_offsets = p;
9268 (*line_offsets)[*nlines] = off;
9269 ++(*nlines);
9270 return NULL;
9271 }
9272
9273 static const struct got_error *
9274 max_key_str(int *ret, const struct tog_key_map *km, size_t n)
9275 {
9276 *ret = 0;
9277
9278 for (;n > 0; --n, ++km) {
9279 char *t0, *t, *k;
9280 size_t len = 1;
9281
9282 if (km->keys == NULL)
9283 continue;
9284
9285 t = t0 = strdup(km->keys);
9286 if (t0 == NULL)
9287 return got_error_from_errno("strdup");
9288
9289 len += strlen(t);
9290 while ((k = strsep(&t, " ")) != NULL)
9291 len += strlen(k) > 1 ? 2 : 0;
9292 free(t0);
9293 *ret = MAX(*ret, len);
9294 }
9295
9296 return NULL;
9297 }
9298
9299 /*
9300 * Write keymap section headers, keys, and key info in km to f.
9301 * Save line offset to *off. If terminal has UTF8 encoding enabled,
9302 * wrap control and symbolic keys in guillemets, else use <>.
9303 */
9304 static const struct got_error *
9305 format_help_line(off_t *off, FILE *f, const struct tog_key_map *km, int width)
9306 {
9307 int n, len = width;
9308
9309 if (km->keys) {
9310 static const char *u8_glyph[] = {
9311 "\xe2\x80\xb9", /* U+2039 (utf8 <) */
9312 "\xe2\x80\xba" /* U+203A (utf8 >) */
9313 };
9314 char *t0, *t, *k;
9315 int cs, s, first = 1;
9316
9317 cs = got_locale_is_utf8();
9318
9319 t = t0 = strdup(km->keys);
9320 if (t0 == NULL)
9321 return got_error_from_errno("strdup");
9322
9323 len = strlen(km->keys);
9324 while ((k = strsep(&t, " ")) != NULL) {
9325 s = strlen(k) > 1; /* control or symbolic key */
9326 n = fprintf(f, "%s%s%s%s%s", first ? " " : "",
9327 cs && s ? u8_glyph[0] : s ? "<" : "", k,
9328 cs && s ? u8_glyph[1] : s ? ">" : "", t ? " " : "");
9329 if (n < 0) {
9330 free(t0);
9331 return got_error_from_errno("fprintf");
9332 }
9333 first = 0;
9334 len += s ? 2 : 0;
9335 *off += n;
9336 }
9337 free(t0);
9338 }
9339 n = fprintf(f, "%*s%s\n", width - len, width - len ? " " : "", km->info);
9340 if (n < 0)
9341 return got_error_from_errno("fprintf");
9342 *off += n;
9343
9344 return NULL;
9345 }
9346
9347 static const struct got_error *
9348 format_help(struct tog_help_view_state *s)
9349 {
9350 const struct got_error *err = NULL;
9351 off_t off = 0;
9352 int i, max, n, show = s->all;
9353 static const struct tog_key_map km[] = {
9354 #define KEYMAP_(info, type) { NULL, (info), type }
9355 #define KEY_(keys, info) { (keys), (info), TOG_KEYMAP_KEYS }
9356 GENERATE_HELP
9357 #undef KEYMAP_
9358 #undef KEY_
9359 };
9360
9361 err = add_line_offset(&s->line_offsets, &s->nlines, 0);
9362 if (err)
9363 return err;
9364
9365 n = nitems(km);
9366 err = max_key_str(&max, km, n);
9367 if (err)
9368 return err;
9369
9370 for (i = 0; i < n; ++i) {
9371 if (km[i].keys == NULL) {
9372 show = s->all;
9373 if (km[i].type == TOG_KEYMAP_GLOBAL ||
9374 km[i].type == s->type || s->all)
9375 show = 1;
9376 }
9377 if (show) {
9378 err = format_help_line(&off, s->f, &km[i], max);
9379 if (err)
9380 return err;
9381 err = add_line_offset(&s->line_offsets, &s->nlines, off);
9382 if (err)
9383 return err;
9384 }
9385 }
9386 fputc('\n', s->f);
9387 ++off;
9388 err = add_line_offset(&s->line_offsets, &s->nlines, off);
9389 return err;
9390 }
9391
9392 static const struct got_error *
9393 create_help(struct tog_help_view_state *s)
9394 {
9395 FILE *f;
9396 const struct got_error *err;
9397
9398 free(s->line_offsets);
9399 s->line_offsets = NULL;
9400 s->nlines = 0;
9401
9402 f = got_opentemp();
9403 if (f == NULL)
9404 return got_error_from_errno("got_opentemp");
9405 s->f = f;
9406
9407 err = format_help(s);
9408 if (err)
9409 return err;
9410
9411 if (s->f && fflush(s->f) != 0)
9412 return got_error_from_errno("fflush");
9413
9414 return NULL;
9415 }
9416
9417 static const struct got_error *
9418 search_start_help_view(struct tog_view *view)
9419 {
9420 view->state.help.matched_line = 0;
9421 return NULL;
9422 }
9423
9424 static void
9425 search_setup_help_view(struct tog_view *view, FILE **f, off_t **line_offsets,
9426 size_t *nlines, int **first, int **last, int **match, int **selected)
9427 {
9428 struct tog_help_view_state *s = &view->state.help;
9429
9430 *f = s->f;
9431 *nlines = s->nlines;
9432 *line_offsets = s->line_offsets;
9433 *match = &s->matched_line;
9434 *first = &s->first_displayed_line;
9435 *last = &s->last_displayed_line;
9436 *selected = &s->selected_line;
9437 }
9438
9439 static const struct got_error *
9440 show_help_view(struct tog_view *view)
9441 {
9442 struct tog_help_view_state *s = &view->state.help;
9443 const struct got_error *err;
9444 regmatch_t *regmatch = &view->regmatch;
9445 wchar_t *wline;
9446 char *line;
9447 ssize_t linelen;
9448 size_t linesz = 0;
9449 int width, nprinted = 0, rc = 0;
9450 int eos = view->nlines;
9451
9452 if (view_is_hsplit_top(view))
9453 --eos; /* account for border */
9454
9455 s->lineno = 0;
9456 rewind(s->f);
9457 werase(view->window);
9458
9459 if (view->gline > s->nlines - 1)
9460 view->gline = s->nlines - 1;
9461
9462 err = win_draw_center(view->window, 0, 0, view->ncols,
9463 view_needs_focus_indication(view),
9464 "tog help (press q to return to tog)");
9465 if (err)
9466 return err;
9467 if (eos <= 1)
9468 return NULL;
9469 waddstr(view->window, "\n\n");
9470 eos -= 2;
9471
9472 s->eof = 0;
9473 view->maxx = 0;
9474 line = NULL;
9475 while (eos > 0 && nprinted < eos) {
9476 attr_t attr = 0;
9477
9478 linelen = getline(&line, &linesz, s->f);
9479 if (linelen == -1) {
9480 if (!feof(s->f)) {
9481 free(line);
9482 return got_ferror(s->f, GOT_ERR_IO);
9483 }
9484 s->eof = 1;
9485 break;
9486 }
9487 if (++s->lineno < s->first_displayed_line)
9488 continue;
9489 if (view->gline && !gotoline(view, &s->lineno, &nprinted))
9490 continue;
9491 if (s->lineno == view->hiline)
9492 attr = A_STANDOUT;
9493
9494 err = format_line(&wline, &width, NULL, line, 0, INT_MAX, 0,
9495 view->x ? 1 : 0);
9496 if (err) {
9497 free(line);
9498 return err;
9499 }
9500 view->maxx = MAX(view->maxx, width);
9501 free(wline);
9502 wline = NULL;
9503
9504 if (attr)
9505 wattron(view->window, attr);
9506 if (s->first_displayed_line + nprinted == s->matched_line &&
9507 regmatch->rm_so >= 0 && regmatch->rm_so < regmatch->rm_eo) {
9508 err = add_matched_line(&width, line, view->ncols - 1, 0,
9509 view->window, view->x, regmatch);
9510 if (err) {
9511 free(line);
9512 return err;
9513 }
9514 } else {
9515 int skip;
9516
9517 err = format_line(&wline, &width, &skip, line,
9518 view->x, view->ncols, 0, view->x ? 1 : 0);
9519 if (err) {
9520 free(line);
9521 return err;
9522 }
9523 waddwstr(view->window, &wline[skip]);
9524 free(wline);
9525 wline = NULL;
9526 }
9527 if (s->lineno == view->hiline) {
9528 while (width++ < view->ncols)
9529 waddch(view->window, ' ');
9530 } else {
9531 if (width < view->ncols)
9532 waddch(view->window, '\n');
9533 }
9534 if (attr)
9535 wattroff(view->window, attr);
9536 if (++nprinted == 1)
9537 s->first_displayed_line = s->lineno;
9538 }
9539 free(line);
9540 if (nprinted > 0)
9541 s->last_displayed_line = s->first_displayed_line + nprinted - 1;
9542 else
9543 s->last_displayed_line = s->first_displayed_line;
9544
9545 view_border(view);
9546
9547 if (s->eof) {
9548 rc = waddnstr(view->window,
9549 "See the tog(1) manual page for full documentation",
9550 view->ncols - 1);
9551 if (rc == ERR)
9552 return got_error_msg(GOT_ERR_RANGE, "waddnstr");
9553 } else {
9554 wmove(view->window, view->nlines - 1, 0);
9555 wclrtoeol(view->window);
9556 wstandout(view->window);
9557 rc = waddnstr(view->window, "scroll down for more...",
9558 view->ncols - 1);
9559 if (rc == ERR)
9560 return got_error_msg(GOT_ERR_RANGE, "waddnstr");
9561 if (getcurx(view->window) < view->ncols - 6) {
9562 rc = wprintw(view->window, "[%.0f%%]",
9563 100.00 * s->last_displayed_line / s->nlines);
9564 if (rc == ERR)
9565 return got_error_msg(GOT_ERR_IO, "wprintw");
9566 }
9567 wstandend(view->window);
9568 }
9569
9570 return NULL;
9571 }
9572
9573 static const struct got_error *
9574 input_help_view(struct tog_view **new_view, struct tog_view *view, int ch)
9575 {
9576 struct tog_help_view_state *s = &view->state.help;
9577 const struct got_error *err = NULL;
9578 char *line = NULL;
9579 ssize_t linelen;
9580 size_t linesz = 0;
9581 int eos, nscroll;
9582
9583 eos = nscroll = view->nlines;
9584 if (view_is_hsplit_top(view))
9585 --eos; /* border */
9586
9587 s->lineno = s->first_displayed_line - 1 + s->selected_line;
9588
9589 switch (ch) {
9590 case '0':
9591 case '$':
9592 case KEY_RIGHT:
9593 case 'l':
9594 case KEY_LEFT:
9595 case 'h':
9596 horizontal_scroll_input(view, ch);
9597 break;
9598 case 'g':
9599 case KEY_HOME:
9600 s->first_displayed_line = 1;
9601 view->count = 0;
9602 break;
9603 case 'G':
9604 case KEY_END:
9605 view->count = 0;
9606 if (s->eof)
9607 break;
9608 s->first_displayed_line = (s->nlines - eos) + 3;
9609 s->eof = 1;
9610 break;
9611 case 'k':
9612 case KEY_UP:
9613 if (s->first_displayed_line > 1)
9614 --s->first_displayed_line;
9615 else
9616 view->count = 0;
9617 break;
9618 case CTRL('u'):
9619 case 'u':
9620 nscroll /= 2;
9621 /* FALL THROUGH */
9622 case KEY_PPAGE:
9623 case CTRL('b'):
9624 case 'b':
9625 if (s->first_displayed_line == 1) {
9626 view->count = 0;
9627 break;
9628 }
9629 while (--nscroll > 0 && s->first_displayed_line > 1)
9630 s->first_displayed_line--;
9631 break;
9632 case 'j':
9633 case KEY_DOWN:
9634 case CTRL('n'):
9635 if (!s->eof)
9636 ++s->first_displayed_line;
9637 else
9638 view->count = 0;
9639 break;
9640 case CTRL('d'):
9641 case 'd':
9642 nscroll /= 2;
9643 /* FALL THROUGH */
9644 case KEY_NPAGE:
9645 case CTRL('f'):
9646 case 'f':
9647 case ' ':
9648 if (s->eof) {
9649 view->count = 0;
9650 break;
9651 }
9652 while (!s->eof && --nscroll > 0) {
9653 linelen = getline(&line, &linesz, s->f);
9654 s->first_displayed_line++;
9655 if (linelen == -1) {
9656 if (feof(s->f))
9657 s->eof = 1;
9658 else
9659 err = got_ferror(s->f, GOT_ERR_IO);
9660 break;
9661 }
9662 }
9663 free(line);
9664 break;
9665 default:
9666 view->count = 0;
9667 break;
9668 }
9669
9670 return err;
9671 }
9672
9673 static const struct got_error *
9674 close_help_view(struct tog_view *view)
9675 {
9676 struct tog_help_view_state *s = &view->state.help;
9677
9678 free(s->line_offsets);
9679 s->line_offsets = NULL;
9680 if (fclose(s->f) == EOF)
9681 return got_error_from_errno("fclose");
9682
9683 return NULL;
9684 }
9685
9686 static const struct got_error *
9687 reset_help_view(struct tog_view *view)
9688 {
9689 struct tog_help_view_state *s = &view->state.help;
9690
9691
9692 if (s->f && fclose(s->f) == EOF)
9693 return got_error_from_errno("fclose");
9694
9695 wclear(view->window);
9696 view->count = 0;
9697 view->x = 0;
9698 s->all = !s->all;
9699 s->first_displayed_line = 1;
9700 s->last_displayed_line = view->nlines;
9701 s->matched_line = 0;
9702
9703 return create_help(s);
9704 }
9705
9706 static const struct got_error *
9707 open_help_view(struct tog_view *view, struct tog_view *parent)
9708 {
9709 const struct got_error *err = NULL;
9710 struct tog_help_view_state *s = &view->state.help;
9711
9712 s->type = (enum tog_keymap_type)parent->type;
9713 s->first_displayed_line = 1;
9714 s->last_displayed_line = view->nlines;
9715 s->selected_line = 1;
9716
9717 view->show = show_help_view;
9718 view->input = input_help_view;
9719 view->reset = reset_help_view;
9720 view->close = close_help_view;
9721 view->search_start = search_start_help_view;
9722 view->search_setup = search_setup_help_view;
9723 view->search_next = search_next_view_match;
9724
9725 err = create_help(s);
9726 return err;
9727 }
9728
9729 static const struct got_error *
9730 view_dispatch_request(struct tog_view **new_view, struct tog_view *view,
9731 enum tog_view_type request, int y, int x)
9732 {
9733 const struct got_error *err = NULL;
9734
9735 *new_view = NULL;
9736
9737 switch (request) {
9738 case TOG_VIEW_DIFF:
9739 if (view->type == TOG_VIEW_LOG) {
9740 struct tog_log_view_state *s = &view->state.log;
9741
9742 err = open_diff_view_for_commit(new_view, y, x,
9743 s->selected_entry->commit, s->selected_entry->id,
9744 view, s->repo);
9745 } else
9746 return got_error_msg(GOT_ERR_NOT_IMPL,
9747 "parent/child view pair not supported");
9748 break;
9749 case TOG_VIEW_BLAME:
9750 if (view->type == TOG_VIEW_TREE) {
9751 struct tog_tree_view_state *s = &view->state.tree;
9752
9753 err = blame_tree_entry(new_view, y, x,
9754 s->selected_entry, &s->parents, s->commit_id,
9755 s->repo);
9756 } else
9757 return got_error_msg(GOT_ERR_NOT_IMPL,
9758 "parent/child view pair not supported");
9759 break;
9760 case TOG_VIEW_LOG:
9761 if (view->type == TOG_VIEW_BLAME)
9762 err = log_annotated_line(new_view, y, x,
9763 view->state.blame.repo, view->state.blame.id_to_log);
9764 else if (view->type == TOG_VIEW_TREE)
9765 err = log_selected_tree_entry(new_view, y, x,
9766 &view->state.tree);
9767 else if (view->type == TOG_VIEW_REF)
9768 err = log_ref_entry(new_view, y, x,
9769 view->state.ref.selected_entry,
9770 view->state.ref.repo);
9771 else
9772 return got_error_msg(GOT_ERR_NOT_IMPL,
9773 "parent/child view pair not supported");
9774 break;
9775 case TOG_VIEW_TREE:
9776 if (view->type == TOG_VIEW_LOG)
9777 err = browse_commit_tree(new_view, y, x,
9778 view->state.log.selected_entry,
9779 view->state.log.in_repo_path,
9780 view->state.log.head_ref_name,
9781 view->state.log.repo);
9782 else if (view->type == TOG_VIEW_REF)
9783 err = browse_ref_tree(new_view, y, x,
9784 view->state.ref.selected_entry,
9785 view->state.ref.repo);
9786 else
9787 return got_error_msg(GOT_ERR_NOT_IMPL,
9788 "parent/child view pair not supported");
9789 break;
9790 case TOG_VIEW_REF:
9791 *new_view = view_open(0, 0, y, x, TOG_VIEW_REF);
9792 if (*new_view == NULL)
9793 return got_error_from_errno("view_open");
9794 if (view->type == TOG_VIEW_LOG)
9795 err = open_ref_view(*new_view, view->state.log.repo);
9796 else if (view->type == TOG_VIEW_TREE)
9797 err = open_ref_view(*new_view, view->state.tree.repo);
9798 else
9799 err = got_error_msg(GOT_ERR_NOT_IMPL,
9800 "parent/child view pair not supported");
9801 if (err)
9802 view_close(*new_view);
9803 break;
9804 case TOG_VIEW_HELP:
9805 *new_view = view_open(0, 0, 0, 0, TOG_VIEW_HELP);
9806 if (*new_view == NULL)
9807 return got_error_from_errno("view_open");
9808 err = open_help_view(*new_view, view);
9809 if (err)
9810 view_close(*new_view);
9811 break;
9812 default:
9813 return got_error_msg(GOT_ERR_NOT_IMPL, "invalid view");
9814 }
9815
9816 return err;
9817 }
9818
9819 /*
9820 * If view was scrolled down to move the selected line into view when opening a
9821 * horizontal split, scroll back up when closing the split/toggling fullscreen.
9822 */
9823 static void
9824 offset_selection_up(struct tog_view *view)
9825 {
9826 switch (view->type) {
9827 case TOG_VIEW_BLAME: {
9828 struct tog_blame_view_state *s = &view->state.blame;
9829 if (s->first_displayed_line == 1) {
9830 s->selected_line = MAX(s->selected_line - view->offset,
9831 1);
9832 break;
9833 }
9834 if (s->first_displayed_line > view->offset)
9835 s->first_displayed_line -= view->offset;
9836 else
9837 s->first_displayed_line = 1;
9838 s->selected_line += view->offset;
9839 break;
9840 }
9841 case TOG_VIEW_LOG:
9842 log_scroll_up(&view->state.log, view->offset);
9843 view->state.log.selected += view->offset;
9844 break;
9845 case TOG_VIEW_REF:
9846 ref_scroll_up(&view->state.ref, view->offset);
9847 view->state.ref.selected += view->offset;
9848 break;
9849 case TOG_VIEW_TREE:
9850 tree_scroll_up(&view->state.tree, view->offset);
9851 view->state.tree.selected += view->offset;
9852 break;
9853 default:
9854 break;
9855 }
9856
9857 view->offset = 0;
9858 }
9859
9860 /*
9861 * If the selected line is in the section of screen covered by the bottom split,
9862 * scroll down offset lines to move it into view and index its new position.
9863 */
9864 static const struct got_error *
9865 offset_selection_down(struct tog_view *view)
9866 {
9867 const struct got_error *err = NULL;
9868 const struct got_error *(*scrolld)(struct tog_view *, int);
9869 int *selected = NULL;
9870 int header, offset;
9871
9872 switch (view->type) {
9873 case TOG_VIEW_BLAME: {
9874 struct tog_blame_view_state *s = &view->state.blame;
9875 header = 3;
9876 scrolld = NULL;
9877 if (s->selected_line > view->nlines - header) {
9878 offset = abs(view->nlines - s->selected_line - header);
9879 s->first_displayed_line += offset;
9880 s->selected_line -= offset;
9881 view->offset = offset;
9882 }
9883 break;
9884 }
9885 case TOG_VIEW_LOG: {
9886 struct tog_log_view_state *s = &view->state.log;
9887 scrolld = &log_scroll_down;
9888 header = view_is_parent_view(view) ? 3 : 2;
9889 selected = &s->selected;
9890 break;
9891 }
9892 case TOG_VIEW_REF: {
9893 struct tog_ref_view_state *s = &view->state.ref;
9894 scrolld = &ref_scroll_down;
9895 header = 3;
9896 selected = &s->selected;
9897 break;
9898 }
9899 case TOG_VIEW_TREE: {
9900 struct tog_tree_view_state *s = &view->state.tree;
9901 scrolld = &tree_scroll_down;
9902 header = 5;
9903 selected = &s->selected;
9904 break;
9905 }
9906 default:
9907 selected = NULL;
9908 scrolld = NULL;
9909 header = 0;
9910 break;
9911 }
9912
9913 if (selected && *selected > view->nlines - header) {
9914 offset = abs(view->nlines - *selected - header);
9915 view->offset = offset;
9916 if (scrolld && offset) {
9917 err = scrolld(view, offset);
9918 *selected -= offset;
9919 }
9920 }
9921
9922 return err;
9923 }
9924
9925 static void
9926 list_commands(FILE *fp)
9927 {
9928 size_t i;
9929
9930 fprintf(fp, "commands:");
9931 for (i = 0; i < nitems(tog_commands); i++) {
9932 const struct tog_cmd *cmd = &tog_commands[i];
9933 fprintf(fp, " %s", cmd->name);
9934 }
9935 fputc('\n', fp);
9936 }
9937
9938 __dead static void
9939 usage(int hflag, int status)
9940 {
9941 FILE *fp = (status == 0) ? stdout : stderr;
9942
9943 fprintf(fp, "usage: %s [-hV] command [arg ...]\n",
9944 getprogname());
9945 if (hflag) {
9946 fprintf(fp, "lazy usage: %s path\n", getprogname());
9947 list_commands(fp);
9948 }
9949 exit(status);
9950 }
9951
9952 static char **
9953 make_argv(int argc, ...)
9954 {
9955 va_list ap;
9956 char **argv;
9957 int i;
9958
9959 va_start(ap, argc);
9960
9961 argv = calloc(argc, sizeof(char *));
9962 if (argv == NULL)
9963 err(1, "calloc");
9964 for (i = 0; i < argc; i++) {
9965 argv[i] = strdup(va_arg(ap, char *));
9966 if (argv[i] == NULL)
9967 err(1, "strdup");
9968 }
9969
9970 va_end(ap);
9971 return argv;
9972 }
9973
9974 /*
9975 * Try to convert 'tog path' into a 'tog log path' command.
9976 * The user could simply have mistyped the command rather than knowingly
9977 * provided a path. So check whether argv[0] can in fact be resolved
9978 * to a path in the HEAD commit and print a special error if not.
9979 * This hack is for mpi@ <3
9980 */
9981 static const struct got_error *
9982 tog_log_with_path(int argc, char *argv[])
9983 {
9984 const struct got_error *error = NULL, *close_err;
9985 const struct tog_cmd *cmd = NULL;
9986 struct got_repository *repo = NULL;
9987 struct got_worktree *worktree = NULL;
9988 struct got_object_id *commit_id = NULL, *id = NULL;
9989 struct got_commit_object *commit = NULL;
9990 char *cwd = NULL, *repo_path = NULL, *in_repo_path = NULL;
9991 char *commit_id_str = NULL, **cmd_argv = NULL;
9992 int *pack_fds = NULL;
9993
9994 cwd = getcwd(NULL, 0);
9995 if (cwd == NULL)
9996 return got_error_from_errno("getcwd");
9997
9998 error = got_repo_pack_fds_open(&pack_fds);
9999 if (error != NULL)
10000 goto done;
10001
10002 error = got_worktree_open(&worktree, cwd, NULL);
10003 if (error && error->code != GOT_ERR_NOT_WORKTREE)
10004 goto done;
10005
10006 if (worktree)
10007 repo_path = strdup(got_worktree_get_repo_path(worktree));
10008 else
10009 repo_path = strdup(cwd);
10010 if (repo_path == NULL) {
10011 error = got_error_from_errno("strdup");
10012 goto done;
10013 }
10014
10015 error = got_repo_open(&repo, repo_path, NULL, pack_fds);
10016 if (error != NULL)
10017 goto done;
10018
10019 error = get_in_repo_path_from_argv0(&in_repo_path, argc, argv,
10020 repo, worktree);
10021 if (error)
10022 goto done;
10023
10024 error = tog_load_refs(repo, 0);
10025 if (error)
10026 goto done;
10027 error = got_repo_match_object_id(&commit_id, NULL, worktree ?
10028 got_worktree_get_head_ref_name(worktree) : GOT_REF_HEAD,
10029 GOT_OBJ_TYPE_COMMIT, &tog_refs, repo);
10030 if (error)
10031 goto done;
10032
10033 if (worktree) {
10034 got_worktree_close(worktree);
10035 worktree = NULL;
10036 }
10037
10038 error = got_object_open_as_commit(&commit, repo, commit_id);
10039 if (error)
10040 goto done;
10041
10042 error = got_object_id_by_path(&id, repo, commit, in_repo_path);
10043 if (error) {
10044 if (error->code != GOT_ERR_NO_TREE_ENTRY)
10045 goto done;
10046 fprintf(stderr, "%s: '%s' is no known command or path\n",
10047 getprogname(), argv[0]);
10048 usage(1, 1);
10049 /* not reached */
10050 }
10051
10052 error = got_object_id_str(&commit_id_str, commit_id);
10053 if (error)
10054 goto done;
10055
10056 cmd = &tog_commands[0]; /* log */
10057 argc = 4;
10058 cmd_argv = make_argv(argc, cmd->name, "-c", commit_id_str, argv[0]);
10059 error = cmd->cmd_main(argc, cmd_argv);
10060 done:
10061 if (repo) {
10062 close_err = got_repo_close(repo);
10063 if (error == NULL)
10064 error = close_err;
10065 }
10066 if (commit)
10067 got_object_commit_close(commit);
10068 if (worktree)
10069 got_worktree_close(worktree);
10070 if (pack_fds) {
10071 const struct got_error *pack_err =
10072 got_repo_pack_fds_close(pack_fds);
10073 if (error == NULL)
10074 error = pack_err;
10075 }
10076 free(id);
10077 free(commit_id_str);
10078 free(commit_id);
10079 free(cwd);
10080 free(repo_path);
10081 free(in_repo_path);
10082 if (cmd_argv) {
10083 int i;
10084 for (i = 0; i < argc; i++)
10085 free(cmd_argv[i]);
10086 free(cmd_argv);
10087 }
10088 tog_free_refs();
10089 return error;
10090 }
10091
10092 int
10093 main(int argc, char *argv[])
10094 {
10095 const struct got_error *io_err, *error = NULL;
10096 const struct tog_cmd *cmd = NULL;
10097 int ch, hflag = 0, Vflag = 0;
10098 char **cmd_argv = NULL;
10099 static const struct option longopts[] = {
10100 { "version", no_argument, NULL, 'V' },
10101 { NULL, 0, NULL, 0}
10102 };
10103 char *diff_algo_str = NULL;
10104 const char *test_script_path;
10105
10106 setlocale(LC_CTYPE, "");
10107
10108 /*
10109 * Override default signal handlers before starting ncurses.
10110 * This should prevent ncurses from installing its own
10111 * broken cleanup() signal handler.
10112 */
10113 signal(SIGWINCH, tog_sigwinch);
10114 signal(SIGPIPE, tog_sigpipe);
10115 signal(SIGCONT, tog_sigcont);
10116 signal(SIGINT, tog_sigint);
10117 signal(SIGTERM, tog_sigterm);
10118
10119 /*
10120 * Test mode init must happen before pledge() because "tty" will
10121 * not allow TTY-related ioctls to occur via regular files.
10122 */
10123 test_script_path = getenv("TOG_TEST_SCRIPT");
10124 if (test_script_path != NULL) {
10125 error = init_mock_term(test_script_path);
10126 if (error) {
10127 fprintf(stderr, "%s: %s\n", getprogname(), error->msg);
10128 return 1;
10129 }
10130 } else if (!isatty(STDIN_FILENO))
10131 errx(1, "standard input is not a tty");
10132
10133 #if !defined(PROFILE)
10134 if (pledge("stdio rpath wpath cpath flock proc tty exec sendfd unveil",
10135 NULL) == -1)
10136 err(1, "pledge");
10137 #endif
10138
10139 while ((ch = getopt_long(argc, argv, "+hV", longopts, NULL)) != -1) {
10140 switch (ch) {
10141 case 'h':
10142 hflag = 1;
10143 break;
10144 case 'V':
10145 Vflag = 1;
10146 break;
10147 default:
10148 usage(hflag, 1);
10149 /* NOTREACHED */
10150 }
10151 }
10152
10153 argc -= optind;
10154 argv += optind;
10155 optind = 1;
10156 optreset = 1;
10157
10158 if (Vflag) {
10159 got_version_print_str();
10160 return 0;
10161 }
10162
10163 if (argc == 0) {
10164 if (hflag)
10165 usage(hflag, 0);
10166 /* Build an argument vector which runs a default command. */
10167 cmd = &tog_commands[0];
10168 argc = 1;
10169 cmd_argv = make_argv(argc, cmd->name);
10170 } else {
10171 size_t i;
10172
10173 /* Did the user specify a command? */
10174 for (i = 0; i < nitems(tog_commands); i++) {
10175 if (strncmp(tog_commands[i].name, argv[0],
10176 strlen(argv[0])) == 0) {
10177 cmd = &tog_commands[i];
10178 break;
10179 }
10180 }
10181 }
10182
10183 diff_algo_str = getenv("TOG_DIFF_ALGORITHM");
10184 if (diff_algo_str) {
10185 if (strcasecmp(diff_algo_str, "patience") == 0)
10186 tog_diff_algo = GOT_DIFF_ALGORITHM_PATIENCE;
10187 if (strcasecmp(diff_algo_str, "myers") == 0)
10188 tog_diff_algo = GOT_DIFF_ALGORITHM_MYERS;
10189 }
10190
10191 tog_base_commit.idx = -1;
10192 tog_base_commit.marker = GOT_WORKTREE_STATE_UNKNOWN;
10193
10194 if (cmd == NULL) {
10195 if (argc != 1)
10196 usage(0, 1);
10197 /* No command specified; try log with a path */
10198 error = tog_log_with_path(argc, argv);
10199 } else {
10200 if (hflag)
10201 cmd->cmd_usage();
10202 else
10203 error = cmd->cmd_main(argc, cmd_argv ? cmd_argv : argv);
10204 }
10205
10206 if (using_mock_io) {
10207 io_err = tog_io_close();
10208 if (error == NULL)
10209 error = io_err;
10210 }
10211 endwin();
10212 if (cmd_argv) {
10213 int i;
10214 for (i = 0; i < argc; i++)
10215 free(cmd_argv[i]);
10216 free(cmd_argv);
10217 }
10218
10219 if (error && error->code != GOT_ERR_CANCELLED &&
10220 error->code != GOT_ERR_EOF &&
10221 error->code != GOT_ERR_PRIVSEP_EXIT &&
10222 error->code != GOT_ERR_PRIVSEP_PIPE &&
10223 !(error->code == GOT_ERR_ERRNO && errno == EINTR)) {
10224 fprintf(stderr, "%s: %s\n", getprogname(), error->msg);
10225 return 1;
10226 }
10227 return 0;
10228 }
portable version of Game of Trees