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portable: gotd/gitwrapper: update for libs
[got-portable.git] / tog / tog.c
blobeae631b96969f4879fee13d1decff2fc94ffdf11
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 int wait_for_ui;
636 } tog_io;
637 static int using_mock_io;
638
639 #define TOG_KEY_SCRDUMP SHRT_MIN
640
641 /*
642 * We implement two types of views: parent views and child views.
643 *
644 * The 'Tab' key switches focus between a parent view and its child view.
645 * Child views are shown side-by-side to their parent view, provided
646 * there is enough screen estate.
647 *
648 * When a new view is opened from within a parent view, this new view
649 * becomes a child view of the parent view, replacing any existing child.
650 *
651 * When a new view is opened from within a child view, this new view
652 * becomes a parent view which will obscure the views below until the
653 * user quits the new parent view by typing 'q'.
654 *
655 * This list of views contains parent views only.
656 * Child views are only pointed to by their parent view.
657 */
658 TAILQ_HEAD(tog_view_list_head, tog_view);
659
660 struct tog_view {
661 TAILQ_ENTRY(tog_view) entry;
662 WINDOW *window;
663 PANEL *panel;
664 int nlines, ncols, begin_y, begin_x; /* based on split height/width */
665 int resized_y, resized_x; /* begin_y/x based on user resizing */
666 int maxx, x; /* max column and current start column */
667 int lines, cols; /* copies of LINES and COLS */
668 int nscrolled, offset; /* lines scrolled and hsplit line offset */
669 int gline, hiline; /* navigate to and highlight this nG line */
670 int ch, count; /* current keymap and count prefix */
671 int resized; /* set when in a resize event */
672 int focussed; /* Only set on one parent or child view at a time. */
673 int dying;
674 struct tog_view *parent;
675 struct tog_view *child;
676
677 /*
678 * This flag is initially set on parent views when a new child view
679 * is created. It gets toggled when the 'Tab' key switches focus
680 * between parent and child.
681 * The flag indicates whether focus should be passed on to our child
682 * view if this parent view gets picked for focus after another parent
683 * view was closed. This prevents child views from losing focus in such
684 * situations.
685 */
686 int focus_child;
687
688 enum tog_view_mode mode;
689 /* type-specific state */
690 enum tog_view_type type;
691 union {
692 struct tog_diff_view_state diff;
693 struct tog_log_view_state log;
694 struct tog_blame_view_state blame;
695 struct tog_tree_view_state tree;
696 struct tog_ref_view_state ref;
697 struct tog_help_view_state help;
698 } state;
699
700 const struct got_error *(*show)(struct tog_view *);
701 const struct got_error *(*input)(struct tog_view **,
702 struct tog_view *, int);
703 const struct got_error *(*reset)(struct tog_view *);
704 const struct got_error *(*resize)(struct tog_view *, int);
705 const struct got_error *(*close)(struct tog_view *);
706
707 const struct got_error *(*search_start)(struct tog_view *);
708 const struct got_error *(*search_next)(struct tog_view *);
709 void (*search_setup)(struct tog_view *, FILE **, off_t **, size_t *,
710 int **, int **, int **, int **);
711 int search_started;
712 int searching;
713 #define TOG_SEARCH_FORWARD 1
714 #define TOG_SEARCH_BACKWARD 2
715 int search_next_done;
716 #define TOG_SEARCH_HAVE_MORE 1
717 #define TOG_SEARCH_NO_MORE 2
718 #define TOG_SEARCH_HAVE_NONE 3
719 regex_t regex;
720 regmatch_t regmatch;
721 const char *action;
722 };
723
724 static const struct got_error *open_diff_view(struct tog_view *,
725 struct got_object_id *, struct got_object_id *,
726 const char *, const char *, int, int, int, struct tog_view *,
727 struct got_repository *);
728 static const struct got_error *show_diff_view(struct tog_view *);
729 static const struct got_error *input_diff_view(struct tog_view **,
730 struct tog_view *, int);
731 static const struct got_error *reset_diff_view(struct tog_view *);
732 static const struct got_error* close_diff_view(struct tog_view *);
733 static const struct got_error *search_start_diff_view(struct tog_view *);
734 static void search_setup_diff_view(struct tog_view *, FILE **, off_t **,
735 size_t *, int **, int **, int **, int **);
736 static const struct got_error *search_next_view_match(struct tog_view *);
737
738 static const struct got_error *open_log_view(struct tog_view *,
739 struct got_object_id *, struct got_repository *,
740 const char *, const char *, int, struct got_worktree *);
741 static const struct got_error * show_log_view(struct tog_view *);
742 static const struct got_error *input_log_view(struct tog_view **,
743 struct tog_view *, int);
744 static const struct got_error *resize_log_view(struct tog_view *, int);
745 static const struct got_error *close_log_view(struct tog_view *);
746 static const struct got_error *search_start_log_view(struct tog_view *);
747 static const struct got_error *search_next_log_view(struct tog_view *);
748
749 static const struct got_error *open_blame_view(struct tog_view *, char *,
750 struct got_object_id *, struct got_repository *);
751 static const struct got_error *show_blame_view(struct tog_view *);
752 static const struct got_error *input_blame_view(struct tog_view **,
753 struct tog_view *, int);
754 static const struct got_error *reset_blame_view(struct tog_view *);
755 static const struct got_error *close_blame_view(struct tog_view *);
756 static const struct got_error *search_start_blame_view(struct tog_view *);
757 static void search_setup_blame_view(struct tog_view *, FILE **, off_t **,
758 size_t *, int **, int **, int **, int **);
759
760 static const struct got_error *open_tree_view(struct tog_view *,
761 struct got_object_id *, const char *, struct got_repository *);
762 static const struct got_error *show_tree_view(struct tog_view *);
763 static const struct got_error *input_tree_view(struct tog_view **,
764 struct tog_view *, int);
765 static const struct got_error *close_tree_view(struct tog_view *);
766 static const struct got_error *search_start_tree_view(struct tog_view *);
767 static const struct got_error *search_next_tree_view(struct tog_view *);
768
769 static const struct got_error *open_ref_view(struct tog_view *,
770 struct got_repository *);
771 static const struct got_error *show_ref_view(struct tog_view *);
772 static const struct got_error *input_ref_view(struct tog_view **,
773 struct tog_view *, int);
774 static const struct got_error *close_ref_view(struct tog_view *);
775 static const struct got_error *search_start_ref_view(struct tog_view *);
776 static const struct got_error *search_next_ref_view(struct tog_view *);
777
778 static const struct got_error *open_help_view(struct tog_view *,
779 struct tog_view *);
780 static const struct got_error *show_help_view(struct tog_view *);
781 static const struct got_error *input_help_view(struct tog_view **,
782 struct tog_view *, int);
783 static const struct got_error *reset_help_view(struct tog_view *);
784 static const struct got_error* close_help_view(struct tog_view *);
785 static const struct got_error *search_start_help_view(struct tog_view *);
786 static void search_setup_help_view(struct tog_view *, FILE **, off_t **,
787 size_t *, int **, int **, int **, int **);
788
789 static volatile sig_atomic_t tog_sigwinch_received;
790 static volatile sig_atomic_t tog_sigpipe_received;
791 static volatile sig_atomic_t tog_sigcont_received;
792 static volatile sig_atomic_t tog_sigint_received;
793 static volatile sig_atomic_t tog_sigterm_received;
794
795 static void
796 tog_sigwinch(int signo)
797 {
798 tog_sigwinch_received = 1;
799 }
800
801 static void
802 tog_sigpipe(int signo)
803 {
804 tog_sigpipe_received = 1;
805 }
806
807 static void
808 tog_sigcont(int signo)
809 {
810 tog_sigcont_received = 1;
811 }
812
813 static void
814 tog_sigint(int signo)
815 {
816 tog_sigint_received = 1;
817 }
818
819 static void
820 tog_sigterm(int signo)
821 {
822 tog_sigterm_received = 1;
823 }
824
825 static int
826 tog_fatal_signal_received(void)
827 {
828 return (tog_sigpipe_received ||
829 tog_sigint_received || tog_sigterm_received);
830 }
831
832 static const struct got_error *
833 view_close(struct tog_view *view)
834 {
835 const struct got_error *err = NULL, *child_err = NULL;
836
837 if (view->child) {
838 child_err = view_close(view->child);
839 view->child = NULL;
840 }
841 if (view->close)
842 err = view->close(view);
843 if (view->panel)
844 del_panel(view->panel);
845 if (view->window)
846 delwin(view->window);
847 free(view);
848 return err ? err : child_err;
849 }
850
851 static struct tog_view *
852 view_open(int nlines, int ncols, int begin_y, int begin_x,
853 enum tog_view_type type)
854 {
855 struct tog_view *view = calloc(1, sizeof(*view));
856
857 if (view == NULL)
858 return NULL;
859
860 view->type = type;
861 view->lines = LINES;
862 view->cols = COLS;
863 view->nlines = nlines ? nlines : LINES - begin_y;
864 view->ncols = ncols ? ncols : COLS - begin_x;
865 view->begin_y = begin_y;
866 view->begin_x = begin_x;
867 view->window = newwin(nlines, ncols, begin_y, begin_x);
868 if (view->window == NULL) {
869 view_close(view);
870 return NULL;
871 }
872 view->panel = new_panel(view->window);
873 if (view->panel == NULL ||
874 set_panel_userptr(view->panel, view) != OK) {
875 view_close(view);
876 return NULL;
877 }
878
879 keypad(view->window, TRUE);
880 return view;
881 }
882
883 static int
884 view_split_begin_x(int begin_x)
885 {
886 if (begin_x > 0 || COLS < 120)
887 return 0;
888 return (COLS - MAX(COLS / 2, 80));
889 }
890
891 /* XXX Stub till we decide what to do. */
892 static int
893 view_split_begin_y(int lines)
894 {
895 return lines * HSPLIT_SCALE;
896 }
897
898 static const struct got_error *view_resize(struct tog_view *);
899
900 static const struct got_error *
901 view_splitscreen(struct tog_view *view)
902 {
903 const struct got_error *err = NULL;
904
905 if (!view->resized && view->mode == TOG_VIEW_SPLIT_HRZN) {
906 if (view->resized_y && view->resized_y < view->lines)
907 view->begin_y = view->resized_y;
908 else
909 view->begin_y = view_split_begin_y(view->nlines);
910 view->begin_x = 0;
911 } else if (!view->resized) {
912 if (view->resized_x && view->resized_x < view->cols - 1 &&
913 view->cols > 119)
914 view->begin_x = view->resized_x;
915 else
916 view->begin_x = view_split_begin_x(0);
917 view->begin_y = 0;
918 }
919 view->nlines = LINES - view->begin_y;
920 view->ncols = COLS - view->begin_x;
921 view->lines = LINES;
922 view->cols = COLS;
923 err = view_resize(view);
924 if (err)
925 return err;
926
927 if (view->parent && view->mode == TOG_VIEW_SPLIT_HRZN)
928 view->parent->nlines = view->begin_y;
929
930 if (mvwin(view->window, view->begin_y, view->begin_x) == ERR)
931 return got_error_from_errno("mvwin");
932
933 return NULL;
934 }
935
936 static const struct got_error *
937 view_fullscreen(struct tog_view *view)
938 {
939 const struct got_error *err = NULL;
940
941 view->begin_x = 0;
942 view->begin_y = view->resized ? view->begin_y : 0;
943 view->nlines = view->resized ? view->nlines : LINES;
944 view->ncols = COLS;
945 view->lines = LINES;
946 view->cols = COLS;
947 err = view_resize(view);
948 if (err)
949 return err;
950
951 if (mvwin(view->window, view->begin_y, view->begin_x) == ERR)
952 return got_error_from_errno("mvwin");
953
954 return NULL;
955 }
956
957 static int
958 view_is_parent_view(struct tog_view *view)
959 {
960 return view->parent == NULL;
961 }
962
963 static int
964 view_is_splitscreen(struct tog_view *view)
965 {
966 return view->begin_x > 0 || view->begin_y > 0;
967 }
968
969 static int
970 view_is_fullscreen(struct tog_view *view)
971 {
972 return view->nlines == LINES && view->ncols == COLS;
973 }
974
975 static int
976 view_is_hsplit_top(struct tog_view *view)
977 {
978 return view->mode == TOG_VIEW_SPLIT_HRZN && view->child &&
979 view_is_splitscreen(view->child);
980 }
981
982 static void
983 view_border(struct tog_view *view)
984 {
985 PANEL *panel;
986 const struct tog_view *view_above;
987
988 if (view->parent)
989 return view_border(view->parent);
990
991 panel = panel_above(view->panel);
992 if (panel == NULL)
993 return;
994
995 view_above = panel_userptr(panel);
996 if (view->mode == TOG_VIEW_SPLIT_HRZN)
997 mvwhline(view->window, view_above->begin_y - 1,
998 view->begin_x, ACS_HLINE, view->ncols);
999 else
1000 mvwvline(view->window, view->begin_y, view_above->begin_x - 1,
1001 ACS_VLINE, view->nlines);
1002 }
1003
1004 static const struct got_error *view_init_hsplit(struct tog_view *, int);
1005 static const struct got_error *request_log_commits(struct tog_view *);
1006 static const struct got_error *offset_selection_down(struct tog_view *);
1007 static void offset_selection_up(struct tog_view *);
1008 static void view_get_split(struct tog_view *, int *, int *);
1009
1010 static const struct got_error *
1011 view_resize(struct tog_view *view)
1012 {
1013 const struct got_error *err = NULL;
1014 int dif, nlines, ncols;
1015
1016 dif = LINES - view->lines; /* line difference */
1017
1018 if (view->lines > LINES)
1019 nlines = view->nlines - (view->lines - LINES);
1020 else
1021 nlines = view->nlines + (LINES - view->lines);
1022 if (view->cols > COLS)
1023 ncols = view->ncols - (view->cols - COLS);
1024 else
1025 ncols = view->ncols + (COLS - view->cols);
1026
1027 if (view->child) {
1028 int hs = view->child->begin_y;
1029
1030 if (!view_is_fullscreen(view))
1031 view->child->begin_x = view_split_begin_x(view->begin_x);
1032 if (view->mode == TOG_VIEW_SPLIT_HRZN ||
1033 view->child->begin_x == 0) {
1034 ncols = COLS;
1035
1036 view_fullscreen(view->child);
1037 if (view->child->focussed)
1038 show_panel(view->child->panel);
1039 else
1040 show_panel(view->panel);
1041 } else {
1042 ncols = view->child->begin_x;
1043
1044 view_splitscreen(view->child);
1045 show_panel(view->child->panel);
1046 }
1047 /*
1048 * XXX This is ugly and needs to be moved into the above
1049 * logic but "works" for now and my attempts at moving it
1050 * break either 'tab' or 'F' key maps in horizontal splits.
1051 */
1052 if (hs) {
1053 err = view_splitscreen(view->child);
1054 if (err)
1055 return err;
1056 if (dif < 0) { /* top split decreased */
1057 err = offset_selection_down(view);
1058 if (err)
1059 return err;
1060 }
1061 view_border(view);
1062 update_panels();
1063 doupdate();
1064 show_panel(view->child->panel);
1065 nlines = view->nlines;
1066 }
1067 } else if (view->parent == NULL)
1068 ncols = COLS;
1069
1070 if (view->resize && dif > 0) {
1071 err = view->resize(view, dif);
1072 if (err)
1073 return err;
1074 }
1075
1076 if (wresize(view->window, nlines, ncols) == ERR)
1077 return got_error_from_errno("wresize");
1078 if (replace_panel(view->panel, view->window) == ERR)
1079 return got_error_from_errno("replace_panel");
1080 wclear(view->window);
1081
1082 view->nlines = nlines;
1083 view->ncols = ncols;
1084 view->lines = LINES;
1085 view->cols = COLS;
1086
1087 return NULL;
1088 }
1089
1090 static const struct got_error *
1091 resize_log_view(struct tog_view *view, int increase)
1092 {
1093 struct tog_log_view_state *s = &view->state.log;
1094 const struct got_error *err = NULL;
1095 int n = 0;
1096
1097 if (s->selected_entry)
1098 n = s->selected_entry->idx + view->lines - s->selected;
1099
1100 /*
1101 * Request commits to account for the increased
1102 * height so we have enough to populate the view.
1103 */
1104 if (s->commits->ncommits < n) {
1105 view->nscrolled = n - s->commits->ncommits + increase + 1;
1106 err = request_log_commits(view);
1107 }
1108
1109 return err;
1110 }
1111
1112 static void
1113 view_adjust_offset(struct tog_view *view, int n)
1114 {
1115 if (n == 0)
1116 return;
1117
1118 if (view->parent && view->parent->offset) {
1119 if (view->parent->offset + n >= 0)
1120 view->parent->offset += n;
1121 else
1122 view->parent->offset = 0;
1123 } else if (view->offset) {
1124 if (view->offset - n >= 0)
1125 view->offset -= n;
1126 else
1127 view->offset = 0;
1128 }
1129 }
1130
1131 static const struct got_error *
1132 view_resize_split(struct tog_view *view, int resize)
1133 {
1134 const struct got_error *err = NULL;
1135 struct tog_view *v = NULL;
1136
1137 if (view->parent)
1138 v = view->parent;
1139 else
1140 v = view;
1141
1142 if (!v->child || !view_is_splitscreen(v->child))
1143 return NULL;
1144
1145 v->resized = v->child->resized = resize; /* lock for resize event */
1146
1147 if (view->mode == TOG_VIEW_SPLIT_HRZN) {
1148 if (v->child->resized_y)
1149 v->child->begin_y = v->child->resized_y;
1150 if (view->parent)
1151 v->child->begin_y -= resize;
1152 else
1153 v->child->begin_y += resize;
1154 if (v->child->begin_y < 3) {
1155 view->count = 0;
1156 v->child->begin_y = 3;
1157 } else if (v->child->begin_y > LINES - 1) {
1158 view->count = 0;
1159 v->child->begin_y = LINES - 1;
1160 }
1161 v->ncols = COLS;
1162 v->child->ncols = COLS;
1163 view_adjust_offset(view, resize);
1164 err = view_init_hsplit(v, v->child->begin_y);
1165 if (err)
1166 return err;
1167 v->child->resized_y = v->child->begin_y;
1168 } else {
1169 if (v->child->resized_x)
1170 v->child->begin_x = v->child->resized_x;
1171 if (view->parent)
1172 v->child->begin_x -= resize;
1173 else
1174 v->child->begin_x += resize;
1175 if (v->child->begin_x < 11) {
1176 view->count = 0;
1177 v->child->begin_x = 11;
1178 } else if (v->child->begin_x > COLS - 1) {
1179 view->count = 0;
1180 v->child->begin_x = COLS - 1;
1181 }
1182 v->child->resized_x = v->child->begin_x;
1183 }
1184
1185 v->child->mode = v->mode;
1186 v->child->nlines = v->lines - v->child->begin_y;
1187 v->child->ncols = v->cols - v->child->begin_x;
1188 v->focus_child = 1;
1189
1190 err = view_fullscreen(v);
1191 if (err)
1192 return err;
1193 err = view_splitscreen(v->child);
1194 if (err)
1195 return err;
1196
1197 if (v->mode == TOG_VIEW_SPLIT_HRZN) {
1198 err = offset_selection_down(v->child);
1199 if (err)
1200 return err;
1201 }
1202
1203 if (v->resize)
1204 err = v->resize(v, 0);
1205 else if (v->child->resize)
1206 err = v->child->resize(v->child, 0);
1207
1208 v->resized = v->child->resized = 0;
1209
1210 return err;
1211 }
1212
1213 static void
1214 view_transfer_size(struct tog_view *dst, struct tog_view *src)
1215 {
1216 struct tog_view *v = src->child ? src->child : src;
1217
1218 dst->resized_x = v->resized_x;
1219 dst->resized_y = v->resized_y;
1220 }
1221
1222 static const struct got_error *
1223 view_close_child(struct tog_view *view)
1224 {
1225 const struct got_error *err = NULL;
1226
1227 if (view->child == NULL)
1228 return NULL;
1229
1230 err = view_close(view->child);
1231 view->child = NULL;
1232 return err;
1233 }
1234
1235 static const struct got_error *
1236 view_set_child(struct tog_view *view, struct tog_view *child)
1237 {
1238 const struct got_error *err = NULL;
1239
1240 view->child = child;
1241 child->parent = view;
1242
1243 err = view_resize(view);
1244 if (err)
1245 return err;
1246
1247 if (view->child->resized_x || view->child->resized_y)
1248 err = view_resize_split(view, 0);
1249
1250 return err;
1251 }
1252
1253 static const struct got_error *view_dispatch_request(struct tog_view **,
1254 struct tog_view *, enum tog_view_type, int, int);
1255
1256 static const struct got_error *
1257 view_request_new(struct tog_view **requested, struct tog_view *view,
1258 enum tog_view_type request)
1259 {
1260 struct tog_view *new_view = NULL;
1261 const struct got_error *err;
1262 int y = 0, x = 0;
1263
1264 *requested = NULL;
1265
1266 if (view_is_parent_view(view) && request != TOG_VIEW_HELP)
1267 view_get_split(view, &y, &x);
1268
1269 err = view_dispatch_request(&new_view, view, request, y, x);
1270 if (err)
1271 return err;
1272
1273 if (view_is_parent_view(view) && view->mode == TOG_VIEW_SPLIT_HRZN &&
1274 request != TOG_VIEW_HELP) {
1275 err = view_init_hsplit(view, y);
1276 if (err)
1277 return err;
1278 }
1279
1280 view->focussed = 0;
1281 new_view->focussed = 1;
1282 new_view->mode = view->mode;
1283 new_view->nlines = request == TOG_VIEW_HELP ?
1284 view->lines : view->lines - y;
1285
1286 if (view_is_parent_view(view) && request != TOG_VIEW_HELP) {
1287 view_transfer_size(new_view, view);
1288 err = view_close_child(view);
1289 if (err)
1290 return err;
1291 err = view_set_child(view, new_view);
1292 if (err)
1293 return err;
1294 view->focus_child = 1;
1295 } else
1296 *requested = new_view;
1297
1298 return NULL;
1299 }
1300
1301 static void
1302 tog_resizeterm(void)
1303 {
1304 int cols, lines;
1305 struct winsize size;
1306
1307 if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &size) < 0) {
1308 cols = 80; /* Default */
1309 lines = 24;
1310 } else {
1311 cols = size.ws_col;
1312 lines = size.ws_row;
1313 }
1314 resize_term(lines, cols);
1315 }
1316
1317 static const struct got_error *
1318 view_search_start(struct tog_view *view, int fast_refresh)
1319 {
1320 const struct got_error *err = NULL;
1321 struct tog_view *v = view;
1322 char pattern[1024];
1323 int ret;
1324
1325 if (view->search_started) {
1326 regfree(&view->regex);
1327 view->searching = 0;
1328 memset(&view->regmatch, 0, sizeof(view->regmatch));
1329 }
1330 view->search_started = 0;
1331
1332 if (view->nlines < 1)
1333 return NULL;
1334
1335 if (view_is_hsplit_top(view))
1336 v = view->child;
1337 else if (view->mode == TOG_VIEW_SPLIT_VERT && view->parent)
1338 v = view->parent;
1339
1340 mvwaddstr(v->window, v->nlines - 1, 0, "/");
1341 wclrtoeol(v->window);
1342
1343 nodelay(v->window, FALSE); /* block for search term input */
1344 nocbreak();
1345 echo();
1346 ret = wgetnstr(v->window, pattern, sizeof(pattern));
1347 wrefresh(v->window);
1348 cbreak();
1349 noecho();
1350 nodelay(v->window, TRUE);
1351 if (!fast_refresh && !using_mock_io)
1352 halfdelay(10);
1353 if (ret == ERR)
1354 return NULL;
1355
1356 if (regcomp(&view->regex, pattern, REG_EXTENDED | REG_NEWLINE) == 0) {
1357 err = view->search_start(view);
1358 if (err) {
1359 regfree(&view->regex);
1360 return err;
1361 }
1362 view->search_started = 1;
1363 view->searching = TOG_SEARCH_FORWARD;
1364 view->search_next_done = 0;
1365 view->search_next(view);
1366 }
1367
1368 return NULL;
1369 }
1370
1371 /* Switch split mode. If view is a parent or child, draw the new splitscreen. */
1372 static const struct got_error *
1373 switch_split(struct tog_view *view)
1374 {
1375 const struct got_error *err = NULL;
1376 struct tog_view *v = NULL;
1377
1378 if (view->parent)
1379 v = view->parent;
1380 else
1381 v = view;
1382
1383 if (v->mode == TOG_VIEW_SPLIT_HRZN)
1384 v->mode = TOG_VIEW_SPLIT_VERT;
1385 else
1386 v->mode = TOG_VIEW_SPLIT_HRZN;
1387
1388 if (!v->child)
1389 return NULL;
1390 else if (v->mode == TOG_VIEW_SPLIT_VERT && v->cols < 120)
1391 v->mode = TOG_VIEW_SPLIT_NONE;
1392
1393 view_get_split(v, &v->child->begin_y, &v->child->begin_x);
1394 if (v->mode == TOG_VIEW_SPLIT_HRZN && v->child->resized_y)
1395 v->child->begin_y = v->child->resized_y;
1396 else if (v->mode == TOG_VIEW_SPLIT_VERT && v->child->resized_x)
1397 v->child->begin_x = v->child->resized_x;
1398
1399
1400 if (v->mode == TOG_VIEW_SPLIT_HRZN) {
1401 v->ncols = COLS;
1402 v->child->ncols = COLS;
1403 v->child->nscrolled = LINES - v->child->nlines;
1404
1405 err = view_init_hsplit(v, v->child->begin_y);
1406 if (err)
1407 return err;
1408 }
1409 v->child->mode = v->mode;
1410 v->child->nlines = v->lines - v->child->begin_y;
1411 v->focus_child = 1;
1412
1413 err = view_fullscreen(v);
1414 if (err)
1415 return err;
1416 err = view_splitscreen(v->child);
1417 if (err)
1418 return err;
1419
1420 if (v->mode == TOG_VIEW_SPLIT_NONE)
1421 v->mode = TOG_VIEW_SPLIT_VERT;
1422 if (v->mode == TOG_VIEW_SPLIT_HRZN) {
1423 err = offset_selection_down(v);
1424 if (err)
1425 return err;
1426 err = offset_selection_down(v->child);
1427 if (err)
1428 return err;
1429 } else {
1430 offset_selection_up(v);
1431 offset_selection_up(v->child);
1432 }
1433 if (v->resize)
1434 err = v->resize(v, 0);
1435 else if (v->child->resize)
1436 err = v->child->resize(v->child, 0);
1437
1438 return err;
1439 }
1440
1441 /*
1442 * Strip trailing whitespace from str starting at byte *n;
1443 * if *n < 0, use strlen(str). Return new str length in *n.
1444 */
1445 static void
1446 strip_trailing_ws(char *str, int *n)
1447 {
1448 size_t x = *n;
1449
1450 if (str == NULL || *str == '\0')
1451 return;
1452
1453 if (x < 0)
1454 x = strlen(str);
1455
1456 while (x-- > 0 && isspace((unsigned char)str[x]))
1457 str[x] = '\0';
1458
1459 *n = x + 1;
1460 }
1461
1462 /*
1463 * Extract visible substring of line y from the curses screen
1464 * and strip trailing whitespace. If vline is set, overwrite
1465 * line[vline] with '|' because the ACS_VLINE character is
1466 * written out as 'x'. Write the line to file f.
1467 */
1468 static const struct got_error *
1469 view_write_line(FILE *f, int y, int vline)
1470 {
1471 char line[COLS * MB_LEN_MAX]; /* allow for multibyte chars */
1472 int r, w;
1473
1474 r = mvwinnstr(curscr, y, 0, line, sizeof(line));
1475 if (r == ERR)
1476 return got_error_fmt(GOT_ERR_RANGE,
1477 "failed to extract line %d", y);
1478
1479 /*
1480 * In some views, lines are padded with blanks to COLS width.
1481 * Strip them so we can diff without the -b flag when testing.
1482 */
1483 strip_trailing_ws(line, &r);
1484
1485 if (vline > 0)
1486 line[vline] = '|';
1487
1488 w = fprintf(f, "%s\n", line);
1489 if (w != r + 1) /* \n */
1490 return got_ferror(f, GOT_ERR_IO);
1491
1492 return NULL;
1493 }
1494
1495 /*
1496 * Capture the visible curses screen by writing each line to the
1497 * file at the path set via the TOG_SCR_DUMP environment variable.
1498 */
1499 static const struct got_error *
1500 screendump(struct tog_view *view)
1501 {
1502 const struct got_error *err;
1503 int i;
1504
1505 err = got_opentemp_truncate(tog_io.sdump);
1506 if (err)
1507 return err;
1508
1509 if ((view->child && view->child->begin_x) ||
1510 (view->parent && view->begin_x)) {
1511 int ncols = view->child ? view->ncols : view->parent->ncols;
1512
1513 /* vertical splitscreen */
1514 for (i = 0; i < view->nlines; ++i) {
1515 err = view_write_line(tog_io.sdump, i, ncols - 1);
1516 if (err)
1517 goto done;
1518 }
1519 } else {
1520 int hline = 0;
1521
1522 /* fullscreen or horizontal splitscreen */
1523 if ((view->child && view->child->begin_y) ||
1524 (view->parent && view->begin_y)) /* hsplit */
1525 hline = view->child ?
1526 view->child->begin_y : view->begin_y;
1527
1528 for (i = 0; i < view->lines; i++) {
1529 if (hline && i == hline - 1) {
1530 int c;
1531
1532 /* ACS_HLINE writes out as 'q', overwrite it */
1533 for (c = 0; c < view->cols; ++c)
1534 fputc('-', tog_io.sdump);
1535 fputc('\n', tog_io.sdump);
1536 continue;
1537 }
1538
1539 err = view_write_line(tog_io.sdump, i, 0);
1540 if (err)
1541 goto done;
1542 }
1543 }
1544
1545 done:
1546 return err;
1547 }
1548
1549 /*
1550 * Compute view->count from numeric input. Assign total to view->count and
1551 * return first non-numeric key entered.
1552 */
1553 static int
1554 get_compound_key(struct tog_view *view, int c)
1555 {
1556 struct tog_view *v = view;
1557 int x, n = 0;
1558
1559 if (view_is_hsplit_top(view))
1560 v = view->child;
1561 else if (view->mode == TOG_VIEW_SPLIT_VERT && view->parent)
1562 v = view->parent;
1563
1564 view->count = 0;
1565 cbreak(); /* block for input */
1566 nodelay(view->window, FALSE);
1567 wmove(v->window, v->nlines - 1, 0);
1568 wclrtoeol(v->window);
1569 waddch(v->window, ':');
1570
1571 do {
1572 x = getcurx(v->window);
1573 if (x != ERR && x < view->ncols) {
1574 waddch(v->window, c);
1575 wrefresh(v->window);
1576 }
1577
1578 /*
1579 * Don't overflow. Max valid request should be the greatest
1580 * between the longest and total lines; cap at 10 million.
1581 */
1582 if (n >= 9999999)
1583 n = 9999999;
1584 else
1585 n = n * 10 + (c - '0');
1586 } while (((c = wgetch(view->window))) >= '0' && c <= '9' && c != ERR);
1587
1588 if (c == 'G' || c == 'g') { /* nG key map */
1589 view->gline = view->hiline = n;
1590 n = 0;
1591 c = 0;
1592 }
1593
1594 /* Massage excessive or inapplicable values at the input handler. */
1595 view->count = n;
1596
1597 return c;
1598 }
1599
1600 static void
1601 action_report(struct tog_view *view)
1602 {
1603 struct tog_view *v = view;
1604
1605 if (view_is_hsplit_top(view))
1606 v = view->child;
1607 else if (view->mode == TOG_VIEW_SPLIT_VERT && view->parent)
1608 v = view->parent;
1609
1610 wmove(v->window, v->nlines - 1, 0);
1611 wclrtoeol(v->window);
1612 wprintw(v->window, ":%s", view->action);
1613 wrefresh(v->window);
1614
1615 /*
1616 * Clear action status report. Only clear in blame view
1617 * once annotating is complete, otherwise it's too fast.
1618 */
1619 if (view->type == TOG_VIEW_BLAME) {
1620 if (view->state.blame.blame_complete)
1621 view->action = NULL;
1622 } else
1623 view->action = NULL;
1624 }
1625
1626 /*
1627 * Read the next line from the test script and assign
1628 * key instruction to *ch. If at EOF, set the *done flag.
1629 */
1630 static const struct got_error *
1631 tog_read_script_key(FILE *script, struct tog_view *view, int *ch, int *done)
1632 {
1633 const struct got_error *err = NULL;
1634 char *line = NULL;
1635 size_t linesz = 0;
1636
1637 if (view->count && --view->count) {
1638 *ch = view->ch;
1639 return NULL;
1640 } else
1641 *ch = -1;
1642
1643 if (getline(&line, &linesz, script) == -1) {
1644 if (feof(script)) {
1645 *done = 1;
1646 goto done;
1647 } else {
1648 err = got_ferror(script, GOT_ERR_IO);
1649 goto done;
1650 }
1651 }
1652
1653 if (strncasecmp(line, "WAIT_FOR_UI", 11) == 0)
1654 tog_io.wait_for_ui = 1;
1655 else if (strncasecmp(line, "KEY_ENTER", 9) == 0)
1656 *ch = KEY_ENTER;
1657 else if (strncasecmp(line, "KEY_RIGHT", 9) == 0)
1658 *ch = KEY_RIGHT;
1659 else if (strncasecmp(line, "KEY_LEFT", 8) == 0)
1660 *ch = KEY_LEFT;
1661 else if (strncasecmp(line, "KEY_DOWN", 8) == 0)
1662 *ch = KEY_DOWN;
1663 else if (strncasecmp(line, "KEY_UP", 6) == 0)
1664 *ch = KEY_UP;
1665 else if (strncasecmp(line, "TAB", 3) == 0)
1666 *ch = '\t';
1667 else if (strncasecmp(line, "SCREENDUMP", 10) == 0)
1668 *ch = TOG_KEY_SCRDUMP;
1669 else if (isdigit((unsigned char)*line)) {
1670 char *t = line;
1671
1672 while (isdigit((unsigned char)*t))
1673 ++t;
1674 view->ch = *ch = *t;
1675 *t = '\0';
1676 /* ignore error, view->count is 0 if instruction is invalid */
1677 view->count = strtonum(line, 0, INT_MAX, NULL);
1678 } else
1679 *ch = *line;
1680
1681 done:
1682 free(line);
1683 return err;
1684 }
1685
1686 static const struct got_error *
1687 view_input(struct tog_view **new, int *done, struct tog_view *view,
1688 struct tog_view_list_head *views, int fast_refresh)
1689 {
1690 const struct got_error *err = NULL;
1691 struct tog_view *v;
1692 int ch, errcode;
1693
1694 *new = NULL;
1695
1696 if (view->action)
1697 action_report(view);
1698
1699 /* Clear "no matches" indicator. */
1700 if (view->search_next_done == TOG_SEARCH_NO_MORE ||
1701 view->search_next_done == TOG_SEARCH_HAVE_NONE) {
1702 view->search_next_done = TOG_SEARCH_HAVE_MORE;
1703 view->count = 0;
1704 }
1705
1706 if (view->searching && !view->search_next_done) {
1707 errcode = pthread_mutex_unlock(&tog_mutex);
1708 if (errcode)
1709 return got_error_set_errno(errcode,
1710 "pthread_mutex_unlock");
1711 sched_yield();
1712 errcode = pthread_mutex_lock(&tog_mutex);
1713 if (errcode)
1714 return got_error_set_errno(errcode,
1715 "pthread_mutex_lock");
1716 view->search_next(view);
1717 return NULL;
1718 }
1719
1720 /* Allow threads to make progress while we are waiting for input. */
1721 errcode = pthread_mutex_unlock(&tog_mutex);
1722 if (errcode)
1723 return got_error_set_errno(errcode, "pthread_mutex_unlock");
1724
1725 if (using_mock_io) {
1726 err = tog_read_script_key(tog_io.f, view, &ch, done);
1727 if (err) {
1728 errcode = pthread_mutex_lock(&tog_mutex);
1729 return err;
1730 }
1731 } else if (view->count && --view->count) {
1732 cbreak();
1733 nodelay(view->window, TRUE);
1734 ch = wgetch(view->window);
1735 /* let C-g or backspace abort unfinished count */
1736 if (ch == CTRL('g') || ch == KEY_BACKSPACE)
1737 view->count = 0;
1738 else
1739 ch = view->ch;
1740 } else {
1741 ch = wgetch(view->window);
1742 if (ch >= '1' && ch <= '9')
1743 view->ch = ch = get_compound_key(view, ch);
1744 }
1745 if (view->hiline && ch != ERR && ch != 0)
1746 view->hiline = 0; /* key pressed, clear line highlight */
1747 nodelay(view->window, TRUE);
1748 errcode = pthread_mutex_lock(&tog_mutex);
1749 if (errcode)
1750 return got_error_set_errno(errcode, "pthread_mutex_lock");
1751
1752 if (tog_sigwinch_received || tog_sigcont_received) {
1753 tog_resizeterm();
1754 tog_sigwinch_received = 0;
1755 tog_sigcont_received = 0;
1756 TAILQ_FOREACH(v, views, entry) {
1757 err = view_resize(v);
1758 if (err)
1759 return err;
1760 err = v->input(new, v, KEY_RESIZE);
1761 if (err)
1762 return err;
1763 if (v->child) {
1764 err = view_resize(v->child);
1765 if (err)
1766 return err;
1767 err = v->child->input(new, v->child,
1768 KEY_RESIZE);
1769 if (err)
1770 return err;
1771 if (v->child->resized_x || v->child->resized_y) {
1772 err = view_resize_split(v, 0);
1773 if (err)
1774 return err;
1775 }
1776 }
1777 }
1778 }
1779
1780 switch (ch) {
1781 case '?':
1782 case 'H':
1783 case KEY_F(1):
1784 if (view->type == TOG_VIEW_HELP)
1785 err = view->reset(view);
1786 else
1787 err = view_request_new(new, view, TOG_VIEW_HELP);
1788 break;
1789 case '\t':
1790 view->count = 0;
1791 if (view->child) {
1792 view->focussed = 0;
1793 view->child->focussed = 1;
1794 view->focus_child = 1;
1795 } else if (view->parent) {
1796 view->focussed = 0;
1797 view->parent->focussed = 1;
1798 view->parent->focus_child = 0;
1799 if (!view_is_splitscreen(view)) {
1800 if (view->parent->resize) {
1801 err = view->parent->resize(view->parent,
1802 0);
1803 if (err)
1804 return err;
1805 }
1806 offset_selection_up(view->parent);
1807 err = view_fullscreen(view->parent);
1808 if (err)
1809 return err;
1810 }
1811 }
1812 break;
1813 case 'q':
1814 if (view->parent && view->mode == TOG_VIEW_SPLIT_HRZN) {
1815 if (view->parent->resize) {
1816 /* might need more commits to fill fullscreen */
1817 err = view->parent->resize(view->parent, 0);
1818 if (err)
1819 break;
1820 }
1821 offset_selection_up(view->parent);
1822 }
1823 err = view->input(new, view, ch);
1824 view->dying = 1;
1825 break;
1826 case 'Q':
1827 *done = 1;
1828 break;
1829 case 'F':
1830 view->count = 0;
1831 if (view_is_parent_view(view)) {
1832 if (view->child == NULL)
1833 break;
1834 if (view_is_splitscreen(view->child)) {
1835 view->focussed = 0;
1836 view->child->focussed = 1;
1837 err = view_fullscreen(view->child);
1838 } else {
1839 err = view_splitscreen(view->child);
1840 if (!err)
1841 err = view_resize_split(view, 0);
1842 }
1843 if (err)
1844 break;
1845 err = view->child->input(new, view->child,
1846 KEY_RESIZE);
1847 } else {
1848 if (view_is_splitscreen(view)) {
1849 view->parent->focussed = 0;
1850 view->focussed = 1;
1851 err = view_fullscreen(view);
1852 } else {
1853 err = view_splitscreen(view);
1854 if (!err && view->mode != TOG_VIEW_SPLIT_HRZN)
1855 err = view_resize(view->parent);
1856 if (!err)
1857 err = view_resize_split(view, 0);
1858 }
1859 if (err)
1860 break;
1861 err = view->input(new, view, KEY_RESIZE);
1862 }
1863 if (err)
1864 break;
1865 if (view->resize) {
1866 err = view->resize(view, 0);
1867 if (err)
1868 break;
1869 }
1870 if (view->parent) {
1871 if (view->parent->resize) {
1872 err = view->parent->resize(view->parent, 0);
1873 if (err != NULL)
1874 break;
1875 }
1876 err = offset_selection_down(view->parent);
1877 if (err != NULL)
1878 break;
1879 }
1880 err = offset_selection_down(view);
1881 break;
1882 case 'S':
1883 view->count = 0;
1884 err = switch_split(view);
1885 break;
1886 case '-':
1887 err = view_resize_split(view, -1);
1888 break;
1889 case '+':
1890 err = view_resize_split(view, 1);
1891 break;
1892 case KEY_RESIZE:
1893 break;
1894 case '/':
1895 view->count = 0;
1896 if (view->search_start)
1897 view_search_start(view, fast_refresh);
1898 else
1899 err = view->input(new, view, ch);
1900 break;
1901 case 'N':
1902 case 'n':
1903 if (view->search_started && view->search_next) {
1904 view->searching = (ch == 'n' ?
1905 TOG_SEARCH_FORWARD : TOG_SEARCH_BACKWARD);
1906 view->search_next_done = 0;
1907 view->search_next(view);
1908 } else
1909 err = view->input(new, view, ch);
1910 break;
1911 case 'A':
1912 if (tog_diff_algo == GOT_DIFF_ALGORITHM_MYERS) {
1913 tog_diff_algo = GOT_DIFF_ALGORITHM_PATIENCE;
1914 view->action = "Patience diff algorithm";
1915 } else {
1916 tog_diff_algo = GOT_DIFF_ALGORITHM_MYERS;
1917 view->action = "Myers diff algorithm";
1918 }
1919 TAILQ_FOREACH(v, views, entry) {
1920 if (v->reset) {
1921 err = v->reset(v);
1922 if (err)
1923 return err;
1924 }
1925 if (v->child && v->child->reset) {
1926 err = v->child->reset(v->child);
1927 if (err)
1928 return err;
1929 }
1930 }
1931 break;
1932 case TOG_KEY_SCRDUMP:
1933 err = screendump(view);
1934 break;
1935 default:
1936 err = view->input(new, view, ch);
1937 break;
1938 }
1939
1940 return err;
1941 }
1942
1943 static int
1944 view_needs_focus_indication(struct tog_view *view)
1945 {
1946 if (view_is_parent_view(view)) {
1947 if (view->child == NULL || view->child->focussed)
1948 return 0;
1949 if (!view_is_splitscreen(view->child))
1950 return 0;
1951 } else if (!view_is_splitscreen(view))
1952 return 0;
1953
1954 return view->focussed;
1955 }
1956
1957 static const struct got_error *
1958 tog_io_close(void)
1959 {
1960 const struct got_error *err = NULL;
1961
1962 if (tog_io.cin && fclose(tog_io.cin) == EOF)
1963 err = got_ferror(tog_io.cin, GOT_ERR_IO);
1964 if (tog_io.cout && fclose(tog_io.cout) == EOF && err == NULL)
1965 err = got_ferror(tog_io.cout, GOT_ERR_IO);
1966 if (tog_io.f && fclose(tog_io.f) == EOF && err == NULL)
1967 err = got_ferror(tog_io.f, GOT_ERR_IO);
1968 if (tog_io.sdump && fclose(tog_io.sdump) == EOF && err == NULL)
1969 err = got_ferror(tog_io.sdump, GOT_ERR_IO);
1970
1971 return err;
1972 }
1973
1974 static const struct got_error *
1975 view_loop(struct tog_view *view)
1976 {
1977 const struct got_error *err = NULL;
1978 struct tog_view_list_head views;
1979 struct tog_view *new_view;
1980 char *mode;
1981 int fast_refresh = 10;
1982 int done = 0, errcode;
1983
1984 mode = getenv("TOG_VIEW_SPLIT_MODE");
1985 if (!mode || !(*mode == 'h' || *mode == 'H'))
1986 view->mode = TOG_VIEW_SPLIT_VERT;
1987 else
1988 view->mode = TOG_VIEW_SPLIT_HRZN;
1989
1990 errcode = pthread_mutex_lock(&tog_mutex);
1991 if (errcode)
1992 return got_error_set_errno(errcode, "pthread_mutex_lock");
1993
1994 TAILQ_INIT(&views);
1995 TAILQ_INSERT_HEAD(&views, view, entry);
1996
1997 view->focussed = 1;
1998 err = view->show(view);
1999 if (err)
2000 return err;
2001 update_panels();
2002 doupdate();
2003 while (!TAILQ_EMPTY(&views) && !done && !tog_thread_error &&
2004 !tog_fatal_signal_received()) {
2005 /* Refresh fast during initialization, then become slower. */
2006 if (fast_refresh && --fast_refresh == 0 && !using_mock_io)
2007 halfdelay(10); /* switch to once per second */
2008
2009 err = view_input(&new_view, &done, view, &views, fast_refresh);
2010 if (err)
2011 break;
2012
2013 if (view->dying && view == TAILQ_FIRST(&views) &&
2014 TAILQ_NEXT(view, entry) == NULL)
2015 done = 1;
2016 if (done) {
2017 struct tog_view *v;
2018
2019 /*
2020 * When we quit, scroll the screen up a single line
2021 * so we don't lose any information.
2022 */
2023 TAILQ_FOREACH(v, &views, entry) {
2024 wmove(v->window, 0, 0);
2025 wdeleteln(v->window);
2026 wnoutrefresh(v->window);
2027 if (v->child && !view_is_fullscreen(v)) {
2028 wmove(v->child->window, 0, 0);
2029 wdeleteln(v->child->window);
2030 wnoutrefresh(v->child->window);
2031 }
2032 }
2033 doupdate();
2034 }
2035
2036 if (view->dying) {
2037 struct tog_view *v, *prev = NULL;
2038
2039 if (view_is_parent_view(view))
2040 prev = TAILQ_PREV(view, tog_view_list_head,
2041 entry);
2042 else if (view->parent)
2043 prev = view->parent;
2044
2045 if (view->parent) {
2046 view->parent->child = NULL;
2047 view->parent->focus_child = 0;
2048 /* Restore fullscreen line height. */
2049 view->parent->nlines = view->parent->lines;
2050 err = view_resize(view->parent);
2051 if (err)
2052 break;
2053 /* Make resized splits persist. */
2054 view_transfer_size(view->parent, view);
2055 } else
2056 TAILQ_REMOVE(&views, view, entry);
2057
2058 err = view_close(view);
2059 if (err)
2060 goto done;
2061
2062 view = NULL;
2063 TAILQ_FOREACH(v, &views, entry) {
2064 if (v->focussed)
2065 break;
2066 }
2067 if (view == NULL && new_view == NULL) {
2068 /* No view has focus. Try to pick one. */
2069 if (prev)
2070 view = prev;
2071 else if (!TAILQ_EMPTY(&views)) {
2072 view = TAILQ_LAST(&views,
2073 tog_view_list_head);
2074 }
2075 if (view) {
2076 if (view->focus_child) {
2077 view->child->focussed = 1;
2078 view = view->child;
2079 } else
2080 view->focussed = 1;
2081 }
2082 }
2083 }
2084 if (new_view) {
2085 struct tog_view *v, *t;
2086 /* Only allow one parent view per type. */
2087 TAILQ_FOREACH_SAFE(v, &views, entry, t) {
2088 if (v->type != new_view->type)
2089 continue;
2090 TAILQ_REMOVE(&views, v, entry);
2091 err = view_close(v);
2092 if (err)
2093 goto done;
2094 break;
2095 }
2096 TAILQ_INSERT_TAIL(&views, new_view, entry);
2097 view = new_view;
2098 }
2099 if (view && !done) {
2100 if (view_is_parent_view(view)) {
2101 if (view->child && view->child->focussed)
2102 view = view->child;
2103 } else {
2104 if (view->parent && view->parent->focussed)
2105 view = view->parent;
2106 }
2107 show_panel(view->panel);
2108 if (view->child && view_is_splitscreen(view->child))
2109 show_panel(view->child->panel);
2110 if (view->parent && view_is_splitscreen(view)) {
2111 err = view->parent->show(view->parent);
2112 if (err)
2113 goto done;
2114 }
2115 err = view->show(view);
2116 if (err)
2117 goto done;
2118 if (view->child) {
2119 err = view->child->show(view->child);
2120 if (err)
2121 goto done;
2122 }
2123 update_panels();
2124 doupdate();
2125 }
2126 }
2127 done:
2128 while (!TAILQ_EMPTY(&views)) {
2129 const struct got_error *close_err;
2130 view = TAILQ_FIRST(&views);
2131 TAILQ_REMOVE(&views, view, entry);
2132 close_err = view_close(view);
2133 if (close_err && err == NULL)
2134 err = close_err;
2135 }
2136
2137 errcode = pthread_mutex_unlock(&tog_mutex);
2138 if (errcode && err == NULL)
2139 err = got_error_set_errno(errcode, "pthread_mutex_unlock");
2140
2141 return err;
2142 }
2143
2144 __dead static void
2145 usage_log(void)
2146 {
2147 endwin();
2148 fprintf(stderr,
2149 "usage: %s log [-b] [-c commit] [-r repository-path] [path]\n",
2150 getprogname());
2151 exit(1);
2152 }
2153
2154 /* Create newly allocated wide-character string equivalent to a byte string. */
2155 static const struct got_error *
2156 mbs2ws(wchar_t **ws, size_t *wlen, const char *s)
2157 {
2158 char *vis = NULL;
2159 const struct got_error *err = NULL;
2160
2161 *ws = NULL;
2162 *wlen = mbstowcs(NULL, s, 0);
2163 if (*wlen == (size_t)-1) {
2164 int vislen;
2165 if (errno != EILSEQ)
2166 return got_error_from_errno("mbstowcs");
2167
2168 /* byte string invalid in current encoding; try to "fix" it */
2169 err = got_mbsavis(&vis, &vislen, s);
2170 if (err)
2171 return err;
2172 *wlen = mbstowcs(NULL, vis, 0);
2173 if (*wlen == (size_t)-1) {
2174 err = got_error_from_errno("mbstowcs"); /* give up */
2175 goto done;
2176 }
2177 }
2178
2179 *ws = calloc(*wlen + 1, sizeof(**ws));
2180 if (*ws == NULL) {
2181 err = got_error_from_errno("calloc");
2182 goto done;
2183 }
2184
2185 if (mbstowcs(*ws, vis ? vis : s, *wlen) != *wlen)
2186 err = got_error_from_errno("mbstowcs");
2187 done:
2188 free(vis);
2189 if (err) {
2190 free(*ws);
2191 *ws = NULL;
2192 *wlen = 0;
2193 }
2194 return err;
2195 }
2196
2197 static const struct got_error *
2198 expand_tab(char **ptr, const char *src)
2199 {
2200 char *dst;
2201 size_t len, n, idx = 0, sz = 0;
2202
2203 *ptr = NULL;
2204 n = len = strlen(src);
2205 dst = malloc(n + 1);
2206 if (dst == NULL)
2207 return got_error_from_errno("malloc");
2208
2209 while (idx < len && src[idx]) {
2210 const char c = src[idx];
2211
2212 if (c == '\t') {
2213 size_t nb = TABSIZE - sz % TABSIZE;
2214 char *p;
2215
2216 p = realloc(dst, n + nb);
2217 if (p == NULL) {
2218 free(dst);
2219 return got_error_from_errno("realloc");
2220
2221 }
2222 dst = p;
2223 n += nb;
2224 memset(dst + sz, ' ', nb);
2225 sz += nb;
2226 } else
2227 dst[sz++] = src[idx];
2228 ++idx;
2229 }
2230
2231 dst[sz] = '\0';
2232 *ptr = dst;
2233 return NULL;
2234 }
2235
2236 /*
2237 * Advance at most n columns from wline starting at offset off.
2238 * Return the index to the first character after the span operation.
2239 * Return the combined column width of all spanned wide characters in
2240 * *rcol.
2241 */
2242 static int
2243 span_wline(int *rcol, int off, wchar_t *wline, int n, int col_tab_align)
2244 {
2245 int width, i, cols = 0;
2246
2247 if (n == 0) {
2248 *rcol = cols;
2249 return off;
2250 }
2251
2252 for (i = off; wline[i] != L'\0'; ++i) {
2253 if (wline[i] == L'\t')
2254 width = TABSIZE - ((cols + col_tab_align) % TABSIZE);
2255 else
2256 width = wcwidth(wline[i]);
2257
2258 if (width == -1) {
2259 width = 1;
2260 wline[i] = L'.';
2261 }
2262
2263 if (cols + width > n)
2264 break;
2265 cols += width;
2266 }
2267
2268 *rcol = cols;
2269 return i;
2270 }
2271
2272 /*
2273 * Format a line for display, ensuring that it won't overflow a width limit.
2274 * With scrolling, the width returned refers to the scrolled version of the
2275 * line, which starts at (*wlinep)[*scrollxp]. The caller must free *wlinep.
2276 */
2277 static const struct got_error *
2278 format_line(wchar_t **wlinep, int *widthp, int *scrollxp,
2279 const char *line, int nscroll, int wlimit, int col_tab_align, int expand)
2280 {
2281 const struct got_error *err = NULL;
2282 int cols;
2283 wchar_t *wline = NULL;
2284 char *exstr = NULL;
2285 size_t wlen;
2286 int i, scrollx;
2287
2288 *wlinep = NULL;
2289 *widthp = 0;
2290
2291 if (expand) {
2292 err = expand_tab(&exstr, line);
2293 if (err)
2294 return err;
2295 }
2296
2297 err = mbs2ws(&wline, &wlen, expand ? exstr : line);
2298 free(exstr);
2299 if (err)
2300 return err;
2301
2302 scrollx = span_wline(&cols, 0, wline, nscroll, col_tab_align);
2303
2304 if (wlen > 0 && wline[wlen - 1] == L'\n') {
2305 wline[wlen - 1] = L'\0';
2306 wlen--;
2307 }
2308 if (wlen > 0 && wline[wlen - 1] == L'\r') {
2309 wline[wlen - 1] = L'\0';
2310 wlen--;
2311 }
2312
2313 i = span_wline(&cols, scrollx, wline, wlimit, col_tab_align);
2314 wline[i] = L'\0';
2315
2316 if (widthp)
2317 *widthp = cols;
2318 if (scrollxp)
2319 *scrollxp = scrollx;
2320 if (err)
2321 free(wline);
2322 else
2323 *wlinep = wline;
2324 return err;
2325 }
2326
2327 static const struct got_error*
2328 build_refs_str(char **refs_str, struct got_reflist_head *refs,
2329 struct got_object_id *id, struct got_repository *repo)
2330 {
2331 static const struct got_error *err = NULL;
2332 struct got_reflist_entry *re;
2333 char *s;
2334 const char *name;
2335
2336 *refs_str = NULL;
2337
2338 if (refs == NULL)
2339 return NULL;
2340
2341 TAILQ_FOREACH(re, refs, entry) {
2342 struct got_tag_object *tag = NULL;
2343 struct got_object_id *ref_id;
2344 int cmp;
2345
2346 name = got_ref_get_name(re->ref);
2347 if (strcmp(name, GOT_REF_HEAD) == 0)
2348 continue;
2349 if (strncmp(name, "refs/", 5) == 0)
2350 name += 5;
2351 if (strncmp(name, "got/", 4) == 0)
2352 continue;
2353 if (strncmp(name, "heads/", 6) == 0)
2354 name += 6;
2355 if (strncmp(name, "remotes/", 8) == 0) {
2356 name += 8;
2357 s = strstr(name, "/" GOT_REF_HEAD);
2358 if (s != NULL && strcmp(s, "/" GOT_REF_HEAD) == 0)
2359 continue;
2360 }
2361 err = got_ref_resolve(&ref_id, repo, re->ref);
2362 if (err)
2363 break;
2364 if (strncmp(name, "tags/", 5) == 0) {
2365 err = got_object_open_as_tag(&tag, repo, ref_id);
2366 if (err) {
2367 if (err->code != GOT_ERR_OBJ_TYPE) {
2368 free(ref_id);
2369 break;
2370 }
2371 /* Ref points at something other than a tag. */
2372 err = NULL;
2373 tag = NULL;
2374 }
2375 }
2376 cmp = got_object_id_cmp(tag ?
2377 got_object_tag_get_object_id(tag) : ref_id, id);
2378 free(ref_id);
2379 if (tag)
2380 got_object_tag_close(tag);
2381 if (cmp != 0)
2382 continue;
2383 s = *refs_str;
2384 if (asprintf(refs_str, "%s%s%s", s ? s : "",
2385 s ? ", " : "", name) == -1) {
2386 err = got_error_from_errno("asprintf");
2387 free(s);
2388 *refs_str = NULL;
2389 break;
2390 }
2391 free(s);
2392 }
2393
2394 return err;
2395 }
2396
2397 static const struct got_error *
2398 format_author(wchar_t **wauthor, int *author_width, char *author, int limit,
2399 int col_tab_align)
2400 {
2401 char *smallerthan;
2402
2403 smallerthan = strchr(author, '<');
2404 if (smallerthan && smallerthan[1] != '\0')
2405 author = smallerthan + 1;
2406 author[strcspn(author, "@>")] = '\0';
2407 return format_line(wauthor, author_width, NULL, author, 0, limit,
2408 col_tab_align, 0);
2409 }
2410
2411 static const struct got_error *
2412 draw_commit(struct tog_view *view, struct commit_queue_entry *entry,
2413 const size_t date_display_cols, int author_display_cols)
2414 {
2415 struct tog_log_view_state *s = &view->state.log;
2416 const struct got_error *err = NULL;
2417 struct got_commit_object *commit = entry->commit;
2418 struct got_object_id *id = entry->id;
2419 char datebuf[12]; /* YYYY-MM-DD + SPACE + NUL */
2420 char *refs_str = NULL;
2421 char *logmsg0 = NULL, *logmsg = NULL;
2422 char *author = NULL;
2423 wchar_t *wrefstr = NULL, *wlogmsg = NULL, *wauthor = NULL;
2424 int author_width, refstr_width, logmsg_width;
2425 char *newline, *line = NULL;
2426 int col, limit, scrollx, logmsg_x;
2427 const int avail = view->ncols, marker_column = author_display_cols + 1;
2428 struct tm tm;
2429 time_t committer_time;
2430 struct tog_color *tc;
2431 struct got_reflist_head *refs;
2432
2433 if (tog_base_commit.id != NULL && tog_base_commit.idx == -1 &&
2434 got_object_id_cmp(id, tog_base_commit.id) == 0)
2435 tog_base_commit.idx = entry->idx;
2436 if (tog_io.wait_for_ui && s->thread_args.need_commit_marker) {
2437 int rc;
2438
2439 rc = pthread_cond_wait(&s->thread_args.log_loaded, &tog_mutex);
2440 if (rc)
2441 return got_error_set_errno(rc, "pthread_cond_wait");
2442 }
2443
2444 committer_time = got_object_commit_get_committer_time(commit);
2445 if (gmtime_r(&committer_time, &tm) == NULL)
2446 return got_error_from_errno("gmtime_r");
2447 if (strftime(datebuf, sizeof(datebuf), "%G-%m-%d ", &tm) == 0)
2448 return got_error(GOT_ERR_NO_SPACE);
2449
2450 if (avail <= date_display_cols)
2451 limit = MIN(sizeof(datebuf) - 1, avail);
2452 else
2453 limit = MIN(date_display_cols, sizeof(datebuf) - 1);
2454 tc = get_color(&s->colors, TOG_COLOR_DATE);
2455 if (tc)
2456 wattr_on(view->window,
2457 COLOR_PAIR(tc->colorpair), NULL);
2458 waddnstr(view->window, datebuf, limit);
2459 if (tc)
2460 wattr_off(view->window,
2461 COLOR_PAIR(tc->colorpair), NULL);
2462 col = limit;
2463 if (col > avail)
2464 goto done;
2465
2466 if (avail >= 120) {
2467 char *id_str;
2468 err = got_object_id_str(&id_str, id);
2469 if (err)
2470 goto done;
2471 tc = get_color(&s->colors, TOG_COLOR_COMMIT);
2472 if (tc)
2473 wattr_on(view->window,
2474 COLOR_PAIR(tc->colorpair), NULL);
2475 wprintw(view->window, "%.8s ", id_str);
2476 if (tc)
2477 wattr_off(view->window,
2478 COLOR_PAIR(tc->colorpair), NULL);
2479 free(id_str);
2480 col += 9;
2481 if (col > avail)
2482 goto done;
2483 }
2484
2485 if (s->use_committer)
2486 author = strdup(got_object_commit_get_committer(commit));
2487 else
2488 author = strdup(got_object_commit_get_author(commit));
2489 if (author == NULL) {
2490 err = got_error_from_errno("strdup");
2491 goto done;
2492 }
2493 err = format_author(&wauthor, &author_width, author, avail - col, col);
2494 if (err)
2495 goto done;
2496 tc = get_color(&s->colors, TOG_COLOR_AUTHOR);
2497 if (tc)
2498 wattr_on(view->window,
2499 COLOR_PAIR(tc->colorpair), NULL);
2500 waddwstr(view->window, wauthor);
2501 col += author_width;
2502 while (col < avail && author_width < author_display_cols + 2) {
2503 if (tog_base_commit.marker != GOT_WORKTREE_STATE_UNKNOWN &&
2504 author_width == marker_column &&
2505 entry->idx == tog_base_commit.idx && !s->limit_view) {
2506 tc = get_color(&s->colors, TOG_COLOR_COMMIT);
2507 if (tc)
2508 wattr_on(view->window,
2509 COLOR_PAIR(tc->colorpair), NULL);
2510 waddch(view->window, tog_base_commit.marker);
2511 if (tc)
2512 wattr_off(view->window,
2513 COLOR_PAIR(tc->colorpair), NULL);
2514 } else
2515 waddch(view->window, ' ');
2516 col++;
2517 author_width++;
2518 }
2519 if (tc)
2520 wattr_off(view->window,
2521 COLOR_PAIR(tc->colorpair), NULL);
2522 if (col > avail)
2523 goto done;
2524
2525 err = got_object_commit_get_logmsg(&logmsg0, commit);
2526 if (err)
2527 goto done;
2528 logmsg = logmsg0;
2529 while (*logmsg == '\n')
2530 logmsg++;
2531 newline = strchr(logmsg, '\n');
2532 if (newline)
2533 *newline = '\0';
2534
2535 limit = avail - col;
2536 if (view->child && !view_is_hsplit_top(view) && limit > 0)
2537 limit--; /* for the border */
2538
2539 /* Prepend reference labels to log message if possible .*/
2540 refs = got_reflist_object_id_map_lookup(tog_refs_idmap, id);
2541 err = build_refs_str(&refs_str, refs, id, s->repo);
2542 if (err)
2543 goto done;
2544 if (refs_str) {
2545 char *rs;
2546
2547 if (asprintf(&rs, "[%s]", refs_str) == -1) {
2548 err = got_error_from_errno("asprintf");
2549 goto done;
2550 }
2551 err = format_line(&wrefstr, &refstr_width,
2552 &scrollx, rs, view->x, limit, col, 1);
2553 free(rs);
2554 if (err)
2555 goto done;
2556 tc = get_color(&s->colors, TOG_COLOR_COMMIT);
2557 if (tc)
2558 wattr_on(view->window,
2559 COLOR_PAIR(tc->colorpair), NULL);
2560 waddwstr(view->window, &wrefstr[scrollx]);
2561 if (tc)
2562 wattr_off(view->window,
2563 COLOR_PAIR(tc->colorpair), NULL);
2564 col += MAX(refstr_width, 0);
2565 if (col > avail)
2566 goto done;
2567
2568 if (col < avail) {
2569 waddch(view->window, ' ');
2570 col++;
2571 }
2572
2573 if (refstr_width > 0)
2574 logmsg_x = 0;
2575 else {
2576 int unscrolled_refstr_width;
2577 size_t len = wcslen(wrefstr);
2578
2579 /*
2580 * No need to check for -1 return value here since
2581 * unprintables have been replaced by span_wline().
2582 */
2583 unscrolled_refstr_width = wcswidth(wrefstr, len);
2584 unscrolled_refstr_width += 1; /* trailing space */
2585 logmsg_x = view->x - unscrolled_refstr_width;
2586 }
2587
2588 limit = avail - col;
2589 if (view->child && !view_is_hsplit_top(view) && limit > 0)
2590 limit--; /* for the border */
2591 } else
2592 logmsg_x = view->x;
2593
2594 err = format_line(&wlogmsg, &logmsg_width, &scrollx, logmsg, logmsg_x,
2595 limit, col, 1);
2596 if (err)
2597 goto done;
2598 waddwstr(view->window, &wlogmsg[scrollx]);
2599 col += MAX(logmsg_width, 0);
2600 while (col < avail) {
2601 waddch(view->window, ' ');
2602 col++;
2603 }
2604 done:
2605 free(logmsg0);
2606 free(wlogmsg);
2607 free(wrefstr);
2608 free(refs_str);
2609 free(author);
2610 free(wauthor);
2611 free(line);
2612 return err;
2613 }
2614
2615 static struct commit_queue_entry *
2616 alloc_commit_queue_entry(struct got_commit_object *commit,
2617 struct got_object_id *id)
2618 {
2619 struct commit_queue_entry *entry;
2620 struct got_object_id *dup;
2621
2622 entry = calloc(1, sizeof(*entry));
2623 if (entry == NULL)
2624 return NULL;
2625
2626 dup = got_object_id_dup(id);
2627 if (dup == NULL) {
2628 free(entry);
2629 return NULL;
2630 }
2631
2632 entry->id = dup;
2633 entry->commit = commit;
2634 return entry;
2635 }
2636
2637 static void
2638 pop_commit(struct commit_queue *commits)
2639 {
2640 struct commit_queue_entry *entry;
2641
2642 entry = TAILQ_FIRST(&commits->head);
2643 TAILQ_REMOVE(&commits->head, entry, entry);
2644 got_object_commit_close(entry->commit);
2645 commits->ncommits--;
2646 free(entry->id);
2647 free(entry);
2648 }
2649
2650 static void
2651 free_commits(struct commit_queue *commits)
2652 {
2653 while (!TAILQ_EMPTY(&commits->head))
2654 pop_commit(commits);
2655 }
2656
2657 static const struct got_error *
2658 match_commit(int *have_match, struct got_object_id *id,
2659 struct got_commit_object *commit, regex_t *regex)
2660 {
2661 const struct got_error *err = NULL;
2662 regmatch_t regmatch;
2663 char *id_str = NULL, *logmsg = NULL;
2664
2665 *have_match = 0;
2666
2667 err = got_object_id_str(&id_str, id);
2668 if (err)
2669 return err;
2670
2671 err = got_object_commit_get_logmsg(&logmsg, commit);
2672 if (err)
2673 goto done;
2674
2675 if (regexec(regex, got_object_commit_get_author(commit), 1,
2676 &regmatch, 0) == 0 ||
2677 regexec(regex, got_object_commit_get_committer(commit), 1,
2678 &regmatch, 0) == 0 ||
2679 regexec(regex, id_str, 1, &regmatch, 0) == 0 ||
2680 regexec(regex, logmsg, 1, &regmatch, 0) == 0)
2681 *have_match = 1;
2682 done:
2683 free(id_str);
2684 free(logmsg);
2685 return err;
2686 }
2687
2688 static const struct got_error *
2689 queue_commits(struct tog_log_thread_args *a)
2690 {
2691 const struct got_error *err = NULL;
2692
2693 /*
2694 * We keep all commits open throughout the lifetime of the log
2695 * view in order to avoid having to re-fetch commits from disk
2696 * while updating the display.
2697 */
2698 do {
2699 struct got_object_id id;
2700 struct got_commit_object *commit;
2701 struct commit_queue_entry *entry;
2702 int limit_match = 0;
2703 int errcode;
2704
2705 err = got_commit_graph_iter_next(&id, a->graph, a->repo,
2706 NULL, NULL);
2707 if (err)
2708 break;
2709
2710 err = got_object_open_as_commit(&commit, a->repo, &id);
2711 if (err)
2712 break;
2713 entry = alloc_commit_queue_entry(commit, &id);
2714 if (entry == NULL) {
2715 err = got_error_from_errno("alloc_commit_queue_entry");
2716 break;
2717 }
2718
2719 errcode = pthread_mutex_lock(&tog_mutex);
2720 if (errcode) {
2721 err = got_error_set_errno(errcode,
2722 "pthread_mutex_lock");
2723 break;
2724 }
2725
2726 entry->idx = a->real_commits->ncommits;
2727 TAILQ_INSERT_TAIL(&a->real_commits->head, entry, entry);
2728 a->real_commits->ncommits++;
2729
2730 if (*a->limiting) {
2731 err = match_commit(&limit_match, &id, commit,
2732 a->limit_regex);
2733 if (err)
2734 break;
2735
2736 if (limit_match) {
2737 struct commit_queue_entry *matched;
2738
2739 matched = alloc_commit_queue_entry(
2740 entry->commit, entry->id);
2741 if (matched == NULL) {
2742 err = got_error_from_errno(
2743 "alloc_commit_queue_entry");
2744 break;
2745 }
2746 matched->commit = entry->commit;
2747 got_object_commit_retain(entry->commit);
2748
2749 matched->idx = a->limit_commits->ncommits;
2750 TAILQ_INSERT_TAIL(&a->limit_commits->head,
2751 matched, entry);
2752 a->limit_commits->ncommits++;
2753 }
2754
2755 /*
2756 * This is how we signal log_thread() that we
2757 * have found a match, and that it should be
2758 * counted as a new entry for the view.
2759 */
2760 a->limit_match = limit_match;
2761 }
2762
2763 if (*a->searching == TOG_SEARCH_FORWARD &&
2764 !*a->search_next_done) {
2765 int have_match;
2766 err = match_commit(&have_match, &id, commit, a->regex);
2767 if (err)
2768 break;
2769
2770 if (*a->limiting) {
2771 if (limit_match && have_match)
2772 *a->search_next_done =
2773 TOG_SEARCH_HAVE_MORE;
2774 } else if (have_match)
2775 *a->search_next_done = TOG_SEARCH_HAVE_MORE;
2776 }
2777
2778 errcode = pthread_mutex_unlock(&tog_mutex);
2779 if (errcode && err == NULL)
2780 err = got_error_set_errno(errcode,
2781 "pthread_mutex_unlock");
2782 if (err)
2783 break;
2784 } while (*a->searching == TOG_SEARCH_FORWARD && !*a->search_next_done);
2785
2786 return err;
2787 }
2788
2789 static void
2790 select_commit(struct tog_log_view_state *s)
2791 {
2792 struct commit_queue_entry *entry;
2793 int ncommits = 0;
2794
2795 entry = s->first_displayed_entry;
2796 while (entry) {
2797 if (ncommits == s->selected) {
2798 s->selected_entry = entry;
2799 break;
2800 }
2801 entry = TAILQ_NEXT(entry, entry);
2802 ncommits++;
2803 }
2804 }
2805
2806 static const struct got_error *
2807 draw_commits(struct tog_view *view)
2808 {
2809 const struct got_error *err = NULL;
2810 struct tog_log_view_state *s = &view->state.log;
2811 struct commit_queue_entry *entry = s->selected_entry;
2812 int limit = view->nlines;
2813 int width;
2814 int ncommits, author_cols = 4, refstr_cols;
2815 char *id_str = NULL, *header = NULL, *ncommits_str = NULL;
2816 char *refs_str = NULL;
2817 wchar_t *wline;
2818 struct tog_color *tc;
2819 static const size_t date_display_cols = 12;
2820 struct got_reflist_head *refs;
2821
2822 if (view_is_hsplit_top(view))
2823 --limit; /* account for border */
2824
2825 if (s->selected_entry &&
2826 !(view->searching && view->search_next_done == 0)) {
2827 err = got_object_id_str(&id_str, s->selected_entry->id);
2828 if (err)
2829 return err;
2830 refs = got_reflist_object_id_map_lookup(tog_refs_idmap,
2831 s->selected_entry->id);
2832 err = build_refs_str(&refs_str, refs, s->selected_entry->id,
2833 s->repo);
2834 if (err)
2835 goto done;
2836 }
2837
2838 if (s->thread_args.commits_needed == 0 && !using_mock_io)
2839 halfdelay(10); /* disable fast refresh */
2840
2841 if (s->thread_args.commits_needed > 0 || s->thread_args.load_all) {
2842 if (asprintf(&ncommits_str, " [%d/%d] %s",
2843 entry ? entry->idx + 1 : 0, s->commits->ncommits,
2844 (view->searching && !view->search_next_done) ?
2845 "searching..." : "loading...") == -1) {
2846 err = got_error_from_errno("asprintf");
2847 goto done;
2848 }
2849 } else {
2850 const char *search_str = NULL;
2851 const char *limit_str = NULL;
2852
2853 if (view->searching) {
2854 if (view->search_next_done == TOG_SEARCH_NO_MORE)
2855 search_str = "no more matches";
2856 else if (view->search_next_done == TOG_SEARCH_HAVE_NONE)
2857 search_str = "no matches found";
2858 else if (!view->search_next_done)
2859 search_str = "searching...";
2860 }
2861
2862 if (s->limit_view && s->commits->ncommits == 0)
2863 limit_str = "no matches found";
2864
2865 if (asprintf(&ncommits_str, " [%d/%d] %s %s",
2866 entry ? entry->idx + 1 : 0, s->commits->ncommits,
2867 search_str ? search_str : (refs_str ? refs_str : ""),
2868 limit_str ? limit_str : "") == -1) {
2869 err = got_error_from_errno("asprintf");
2870 goto done;
2871 }
2872 }
2873
2874 free(refs_str);
2875 refs_str = NULL;
2876
2877 if (s->in_repo_path && strcmp(s->in_repo_path, "/") != 0) {
2878 if (asprintf(&header, "commit %s %s%s", id_str ? id_str :
2879 "........................................",
2880 s->in_repo_path, ncommits_str) == -1) {
2881 err = got_error_from_errno("asprintf");
2882 header = NULL;
2883 goto done;
2884 }
2885 } else if (asprintf(&header, "commit %s%s",
2886 id_str ? id_str : "........................................",
2887 ncommits_str) == -1) {
2888 err = got_error_from_errno("asprintf");
2889 header = NULL;
2890 goto done;
2891 }
2892 err = format_line(&wline, &width, NULL, header, 0, view->ncols, 0, 0);
2893 if (err)
2894 goto done;
2895
2896 werase(view->window);
2897
2898 if (view_needs_focus_indication(view))
2899 wstandout(view->window);
2900 tc = get_color(&s->colors, TOG_COLOR_COMMIT);
2901 if (tc)
2902 wattr_on(view->window, COLOR_PAIR(tc->colorpair), NULL);
2903 waddwstr(view->window, wline);
2904 while (width < view->ncols) {
2905 waddch(view->window, ' ');
2906 width++;
2907 }
2908 if (tc)
2909 wattr_off(view->window, COLOR_PAIR(tc->colorpair), NULL);
2910 if (view_needs_focus_indication(view))
2911 wstandend(view->window);
2912 free(wline);
2913 if (limit <= 1)
2914 goto done;
2915
2916 /* Grow author column size if necessary, and set view->maxx. */
2917 entry = s->first_displayed_entry;
2918 ncommits = 0;
2919 view->maxx = 0;
2920 while (entry) {
2921 struct got_commit_object *c = entry->commit;
2922 char *author, *eol, *msg, *msg0;
2923 wchar_t *wauthor, *wmsg;
2924 int width;
2925 if (ncommits >= limit - 1)
2926 break;
2927 if (s->use_committer)
2928 author = strdup(got_object_commit_get_committer(c));
2929 else
2930 author = strdup(got_object_commit_get_author(c));
2931 if (author == NULL) {
2932 err = got_error_from_errno("strdup");
2933 goto done;
2934 }
2935 err = format_author(&wauthor, &width, author, COLS,
2936 date_display_cols);
2937 if (author_cols < width)
2938 author_cols = width;
2939 free(wauthor);
2940 free(author);
2941 if (err)
2942 goto done;
2943 refs = got_reflist_object_id_map_lookup(tog_refs_idmap,
2944 entry->id);
2945 err = build_refs_str(&refs_str, refs, entry->id, s->repo);
2946 if (err)
2947 goto done;
2948 if (refs_str) {
2949 wchar_t *ws;
2950 err = format_line(&ws, &width, NULL, refs_str,
2951 0, INT_MAX, date_display_cols + author_cols, 0);
2952 free(ws);
2953 free(refs_str);
2954 refs_str = NULL;
2955 if (err)
2956 goto done;
2957 refstr_cols = width + 3; /* account for [ ] + space */
2958 } else
2959 refstr_cols = 0;
2960 err = got_object_commit_get_logmsg(&msg0, c);
2961 if (err)
2962 goto done;
2963 msg = msg0;
2964 while (*msg == '\n')
2965 ++msg;
2966 if ((eol = strchr(msg, '\n')))
2967 *eol = '\0';
2968 err = format_line(&wmsg, &width, NULL, msg, 0, INT_MAX,
2969 date_display_cols + author_cols + refstr_cols, 0);
2970 if (err)
2971 goto done;
2972 view->maxx = MAX(view->maxx, width + refstr_cols);
2973 free(msg0);
2974 free(wmsg);
2975 ncommits++;
2976 entry = TAILQ_NEXT(entry, entry);
2977 }
2978
2979 entry = s->first_displayed_entry;
2980 s->last_displayed_entry = s->first_displayed_entry;
2981 ncommits = 0;
2982 while (entry) {
2983 if (ncommits >= limit - 1)
2984 break;
2985 if (ncommits == s->selected)
2986 wstandout(view->window);
2987 err = draw_commit(view, entry, date_display_cols, author_cols);
2988 if (ncommits == s->selected)
2989 wstandend(view->window);
2990 if (err)
2991 goto done;
2992 ncommits++;
2993 s->last_displayed_entry = entry;
2994 entry = TAILQ_NEXT(entry, entry);
2995 }
2996
2997 view_border(view);
2998 done:
2999 free(id_str);
3000 free(refs_str);
3001 free(ncommits_str);
3002 free(header);
3003 return err;
3004 }
3005
3006 static void
3007 log_scroll_up(struct tog_log_view_state *s, int maxscroll)
3008 {
3009 struct commit_queue_entry *entry;
3010 int nscrolled = 0;
3011
3012 entry = TAILQ_FIRST(&s->commits->head);
3013 if (s->first_displayed_entry == entry)
3014 return;
3015
3016 entry = s->first_displayed_entry;
3017 while (entry && nscrolled < maxscroll) {
3018 entry = TAILQ_PREV(entry, commit_queue_head, entry);
3019 if (entry) {
3020 s->first_displayed_entry = entry;
3021 nscrolled++;
3022 }
3023 }
3024 }
3025
3026 static const struct got_error *
3027 trigger_log_thread(struct tog_view *view, int wait)
3028 {
3029 struct tog_log_thread_args *ta = &view->state.log.thread_args;
3030 int errcode;
3031
3032 if (!using_mock_io)
3033 halfdelay(1); /* fast refresh while loading commits */
3034
3035 while (!ta->log_complete && !tog_thread_error &&
3036 (ta->commits_needed > 0 || ta->load_all)) {
3037 /* Wake the log thread. */
3038 errcode = pthread_cond_signal(&ta->need_commits);
3039 if (errcode)
3040 return got_error_set_errno(errcode,
3041 "pthread_cond_signal");
3042
3043 /*
3044 * The mutex will be released while the view loop waits
3045 * in wgetch(), at which time the log thread will run.
3046 */
3047 if (!wait)
3048 break;
3049
3050 /* Display progress update in log view. */
3051 show_log_view(view);
3052 update_panels();
3053 doupdate();
3054
3055 /* Wait right here while next commit is being loaded. */
3056 errcode = pthread_cond_wait(&ta->commit_loaded, &tog_mutex);
3057 if (errcode)
3058 return got_error_set_errno(errcode,
3059 "pthread_cond_wait");
3060
3061 /* Display progress update in log view. */
3062 show_log_view(view);
3063 update_panels();
3064 doupdate();
3065 }
3066
3067 return NULL;
3068 }
3069
3070 static const struct got_error *
3071 request_log_commits(struct tog_view *view)
3072 {
3073 struct tog_log_view_state *state = &view->state.log;
3074 const struct got_error *err = NULL;
3075
3076 if (state->thread_args.log_complete)
3077 return NULL;
3078
3079 state->thread_args.commits_needed += view->nscrolled;
3080 err = trigger_log_thread(view, 1);
3081 view->nscrolled = 0;
3082
3083 return err;
3084 }
3085
3086 static const struct got_error *
3087 log_scroll_down(struct tog_view *view, int maxscroll)
3088 {
3089 struct tog_log_view_state *s = &view->state.log;
3090 const struct got_error *err = NULL;
3091 struct commit_queue_entry *pentry;
3092 int nscrolled = 0, ncommits_needed;
3093
3094 if (s->last_displayed_entry == NULL)
3095 return NULL;
3096
3097 ncommits_needed = s->last_displayed_entry->idx + 1 + maxscroll;
3098 if (s->commits->ncommits < ncommits_needed &&
3099 !s->thread_args.log_complete) {
3100 /*
3101 * Ask the log thread for required amount of commits.
3102 */
3103 s->thread_args.commits_needed +=
3104 ncommits_needed - s->commits->ncommits;
3105 err = trigger_log_thread(view, 1);
3106 if (err)
3107 return err;
3108 }
3109
3110 do {
3111 pentry = TAILQ_NEXT(s->last_displayed_entry, entry);
3112 if (pentry == NULL && view->mode != TOG_VIEW_SPLIT_HRZN)
3113 break;
3114
3115 s->last_displayed_entry = pentry ?
3116 pentry : s->last_displayed_entry;
3117
3118 pentry = TAILQ_NEXT(s->first_displayed_entry, entry);
3119 if (pentry == NULL)
3120 break;
3121 s->first_displayed_entry = pentry;
3122 } while (++nscrolled < maxscroll);
3123
3124 if (view->mode == TOG_VIEW_SPLIT_HRZN && !s->thread_args.log_complete)
3125 view->nscrolled += nscrolled;
3126 else
3127 view->nscrolled = 0;
3128
3129 return err;
3130 }
3131
3132 static const struct got_error *
3133 open_diff_view_for_commit(struct tog_view **new_view, int begin_y, int begin_x,
3134 struct got_commit_object *commit, struct got_object_id *commit_id,
3135 struct tog_view *log_view, struct got_repository *repo)
3136 {
3137 const struct got_error *err;
3138 struct got_object_qid *parent_id;
3139 struct tog_view *diff_view;
3140
3141 diff_view = view_open(0, 0, begin_y, begin_x, TOG_VIEW_DIFF);
3142 if (diff_view == NULL)
3143 return got_error_from_errno("view_open");
3144
3145 parent_id = STAILQ_FIRST(got_object_commit_get_parent_ids(commit));
3146 err = open_diff_view(diff_view, parent_id ? &parent_id->id : NULL,
3147 commit_id, NULL, NULL, 3, 0, 0, log_view, repo);
3148 if (err == NULL)
3149 *new_view = diff_view;
3150 return err;
3151 }
3152
3153 static const struct got_error *
3154 tree_view_visit_subtree(struct tog_tree_view_state *s,
3155 struct got_tree_object *subtree)
3156 {
3157 struct tog_parent_tree *parent;
3158
3159 parent = calloc(1, sizeof(*parent));
3160 if (parent == NULL)
3161 return got_error_from_errno("calloc");
3162
3163 parent->tree = s->tree;
3164 parent->first_displayed_entry = s->first_displayed_entry;
3165 parent->selected_entry = s->selected_entry;
3166 parent->selected = s->selected;
3167 TAILQ_INSERT_HEAD(&s->parents, parent, entry);
3168 s->tree = subtree;
3169 s->selected = 0;
3170 s->first_displayed_entry = NULL;
3171 return NULL;
3172 }
3173
3174 static const struct got_error *
3175 tree_view_walk_path(struct tog_tree_view_state *s,
3176 struct got_commit_object *commit, const char *path)
3177 {
3178 const struct got_error *err = NULL;
3179 struct got_tree_object *tree = NULL;
3180 const char *p;
3181 char *slash, *subpath = NULL;
3182
3183 /* Walk the path and open corresponding tree objects. */
3184 p = path;
3185 while (*p) {
3186 struct got_tree_entry *te;
3187 struct got_object_id *tree_id;
3188 char *te_name;
3189
3190 while (p[0] == '/')
3191 p++;
3192
3193 /* Ensure the correct subtree entry is selected. */
3194 slash = strchr(p, '/');
3195 if (slash == NULL)
3196 te_name = strdup(p);
3197 else
3198 te_name = strndup(p, slash - p);
3199 if (te_name == NULL) {
3200 err = got_error_from_errno("strndup");
3201 break;
3202 }
3203 te = got_object_tree_find_entry(s->tree, te_name);
3204 if (te == NULL) {
3205 err = got_error_path(te_name, GOT_ERR_NO_TREE_ENTRY);
3206 free(te_name);
3207 break;
3208 }
3209 free(te_name);
3210 s->first_displayed_entry = s->selected_entry = te;
3211
3212 if (!S_ISDIR(got_tree_entry_get_mode(s->selected_entry)))
3213 break; /* jump to this file's entry */
3214
3215 slash = strchr(p, '/');
3216 if (slash)
3217 subpath = strndup(path, slash - path);
3218 else
3219 subpath = strdup(path);
3220 if (subpath == NULL) {
3221 err = got_error_from_errno("strdup");
3222 break;
3223 }
3224
3225 err = got_object_id_by_path(&tree_id, s->repo, commit,
3226 subpath);
3227 if (err)
3228 break;
3229
3230 err = got_object_open_as_tree(&tree, s->repo, tree_id);
3231 free(tree_id);
3232 if (err)
3233 break;
3234
3235 err = tree_view_visit_subtree(s, tree);
3236 if (err) {
3237 got_object_tree_close(tree);
3238 break;
3239 }
3240 if (slash == NULL)
3241 break;
3242 free(subpath);
3243 subpath = NULL;
3244 p = slash;
3245 }
3246
3247 free(subpath);
3248 return err;
3249 }
3250
3251 static const struct got_error *
3252 browse_commit_tree(struct tog_view **new_view, int begin_y, int begin_x,
3253 struct commit_queue_entry *entry, const char *path,
3254 const char *head_ref_name, struct got_repository *repo)
3255 {
3256 const struct got_error *err = NULL;
3257 struct tog_tree_view_state *s;
3258 struct tog_view *tree_view;
3259
3260 tree_view = view_open(0, 0, begin_y, begin_x, TOG_VIEW_TREE);
3261 if (tree_view == NULL)
3262 return got_error_from_errno("view_open");
3263
3264 err = open_tree_view(tree_view, entry->id, head_ref_name, repo);
3265 if (err)
3266 return err;
3267 s = &tree_view->state.tree;
3268
3269 *new_view = tree_view;
3270
3271 if (got_path_is_root_dir(path))
3272 return NULL;
3273
3274 return tree_view_walk_path(s, entry->commit, path);
3275 }
3276
3277 static const struct got_error *
3278 block_signals_used_by_main_thread(void)
3279 {
3280 sigset_t sigset;
3281 int errcode;
3282
3283 if (sigemptyset(&sigset) == -1)
3284 return got_error_from_errno("sigemptyset");
3285
3286 /* tog handles SIGWINCH, SIGCONT, SIGINT, SIGTERM */
3287 if (sigaddset(&sigset, SIGWINCH) == -1)
3288 return got_error_from_errno("sigaddset");
3289 if (sigaddset(&sigset, SIGCONT) == -1)
3290 return got_error_from_errno("sigaddset");
3291 if (sigaddset(&sigset, SIGINT) == -1)
3292 return got_error_from_errno("sigaddset");
3293 if (sigaddset(&sigset, SIGTERM) == -1)
3294 return got_error_from_errno("sigaddset");
3295
3296 /* ncurses handles SIGTSTP */
3297 if (sigaddset(&sigset, SIGTSTP) == -1)
3298 return got_error_from_errno("sigaddset");
3299
3300 errcode = pthread_sigmask(SIG_BLOCK, &sigset, NULL);
3301 if (errcode)
3302 return got_error_set_errno(errcode, "pthread_sigmask");
3303
3304 return NULL;
3305 }
3306
3307 static void *
3308 log_thread(void *arg)
3309 {
3310 const struct got_error *err = NULL;
3311 int errcode = 0;
3312 struct tog_log_thread_args *a = arg;
3313 int done = 0;
3314
3315 /*
3316 * Sync startup with main thread such that we begin our
3317 * work once view_input() has released the mutex.
3318 */
3319 errcode = pthread_mutex_lock(&tog_mutex);
3320 if (errcode) {
3321 err = got_error_set_errno(errcode, "pthread_mutex_lock");
3322 return (void *)err;
3323 }
3324
3325 err = block_signals_used_by_main_thread();
3326 if (err) {
3327 pthread_mutex_unlock(&tog_mutex);
3328 goto done;
3329 }
3330
3331 while (!done && !err && !tog_fatal_signal_received()) {
3332 errcode = pthread_mutex_unlock(&tog_mutex);
3333 if (errcode) {
3334 err = got_error_set_errno(errcode,
3335 "pthread_mutex_unlock");
3336 goto done;
3337 }
3338 err = queue_commits(a);
3339 if (err) {
3340 if (err->code != GOT_ERR_ITER_COMPLETED)
3341 goto done;
3342 err = NULL;
3343 done = 1;
3344 a->commits_needed = 0;
3345 } else if (a->commits_needed > 0 && !a->load_all) {
3346 if (*a->limiting) {
3347 if (a->limit_match)
3348 a->commits_needed--;
3349 } else
3350 a->commits_needed--;
3351 }
3352
3353 errcode = pthread_mutex_lock(&tog_mutex);
3354 if (errcode) {
3355 err = got_error_set_errno(errcode,
3356 "pthread_mutex_lock");
3357 goto done;
3358 } else if (*a->quit)
3359 done = 1;
3360 else if (*a->limiting && *a->first_displayed_entry == NULL) {
3361 *a->first_displayed_entry =
3362 TAILQ_FIRST(&a->limit_commits->head);
3363 *a->selected_entry = *a->first_displayed_entry;
3364 } else if (*a->first_displayed_entry == NULL) {
3365 *a->first_displayed_entry =
3366 TAILQ_FIRST(&a->real_commits->head);
3367 *a->selected_entry = *a->first_displayed_entry;
3368 }
3369
3370 errcode = pthread_cond_signal(&a->commit_loaded);
3371 if (errcode) {
3372 err = got_error_set_errno(errcode,
3373 "pthread_cond_signal");
3374 pthread_mutex_unlock(&tog_mutex);
3375 goto done;
3376 }
3377
3378 if (a->commits_needed == 0 &&
3379 a->need_commit_marker && a->worktree) {
3380 errcode = pthread_mutex_unlock(&tog_mutex);
3381 if (errcode) {
3382 err = got_error_set_errno(errcode,
3383 "pthread_mutex_unlock");
3384 goto done;
3385 }
3386 err = got_worktree_get_state(&tog_base_commit.marker,
3387 a->repo, a->worktree, NULL, NULL);
3388 if (err)
3389 goto done;
3390 errcode = pthread_mutex_lock(&tog_mutex);
3391 if (errcode) {
3392 err = got_error_set_errno(errcode,
3393 "pthread_mutex_lock");
3394 goto done;
3395 }
3396 a->need_commit_marker = 0;
3397 /*
3398 * The main thread did not close this
3399 * work tree yet. Close it now.
3400 */
3401 got_worktree_close(a->worktree);
3402 a->worktree = NULL;
3403
3404 if (*a->quit)
3405 done = 1;
3406 }
3407
3408 if (done)
3409 a->commits_needed = 0;
3410 else {
3411 if (a->commits_needed == 0 && !a->load_all) {
3412 if (tog_io.wait_for_ui) {
3413 errcode = pthread_cond_signal(
3414 &a->log_loaded);
3415 if (errcode && err == NULL)
3416 err = got_error_set_errno(
3417 errcode,
3418 "pthread_cond_signal");
3419 }
3420
3421 errcode = pthread_cond_wait(&a->need_commits,
3422 &tog_mutex);
3423 if (errcode) {
3424 err = got_error_set_errno(errcode,
3425 "pthread_cond_wait");
3426 pthread_mutex_unlock(&tog_mutex);
3427 goto done;
3428 }
3429 if (*a->quit)
3430 done = 1;
3431 }
3432 }
3433 }
3434 a->log_complete = 1;
3435 if (tog_io.wait_for_ui) {
3436 errcode = pthread_cond_signal(&a->log_loaded);
3437 if (errcode && err == NULL)
3438 err = got_error_set_errno(errcode,
3439 "pthread_cond_signal");
3440 }
3441
3442 errcode = pthread_mutex_unlock(&tog_mutex);
3443 if (errcode)
3444 err = got_error_set_errno(errcode, "pthread_mutex_unlock");
3445 done:
3446 if (err) {
3447 tog_thread_error = 1;
3448 pthread_cond_signal(&a->commit_loaded);
3449 if (a->worktree) {
3450 got_worktree_close(a->worktree);
3451 a->worktree = NULL;
3452 }
3453 }
3454 return (void *)err;
3455 }
3456
3457 static const struct got_error *
3458 stop_log_thread(struct tog_log_view_state *s)
3459 {
3460 const struct got_error *err = NULL, *thread_err = NULL;
3461 int errcode;
3462
3463 if (s->thread) {
3464 s->quit = 1;
3465 errcode = pthread_cond_signal(&s->thread_args.need_commits);
3466 if (errcode)
3467 return got_error_set_errno(errcode,
3468 "pthread_cond_signal");
3469 errcode = pthread_mutex_unlock(&tog_mutex);
3470 if (errcode)
3471 return got_error_set_errno(errcode,
3472 "pthread_mutex_unlock");
3473 errcode = pthread_join(s->thread, (void **)&thread_err);
3474 if (errcode)
3475 return got_error_set_errno(errcode, "pthread_join");
3476 errcode = pthread_mutex_lock(&tog_mutex);
3477 if (errcode)
3478 return got_error_set_errno(errcode,
3479 "pthread_mutex_lock");
3480 s->thread = 0; //NULL;
3481 }
3482
3483 if (s->thread_args.repo) {
3484 err = got_repo_close(s->thread_args.repo);
3485 s->thread_args.repo = NULL;
3486 }
3487
3488 if (s->thread_args.pack_fds) {
3489 const struct got_error *pack_err =
3490 got_repo_pack_fds_close(s->thread_args.pack_fds);
3491 if (err == NULL)
3492 err = pack_err;
3493 s->thread_args.pack_fds = NULL;
3494 }
3495
3496 if (s->thread_args.graph) {
3497 got_commit_graph_close(s->thread_args.graph);
3498 s->thread_args.graph = NULL;
3499 }
3500
3501 return err ? err : thread_err;
3502 }
3503
3504 static const struct got_error *
3505 close_log_view(struct tog_view *view)
3506 {
3507 const struct got_error *err = NULL;
3508 struct tog_log_view_state *s = &view->state.log;
3509 int errcode;
3510
3511 err = stop_log_thread(s);
3512
3513 errcode = pthread_cond_destroy(&s->thread_args.need_commits);
3514 if (errcode && err == NULL)
3515 err = got_error_set_errno(errcode, "pthread_cond_destroy");
3516
3517 errcode = pthread_cond_destroy(&s->thread_args.commit_loaded);
3518 if (errcode && err == NULL)
3519 err = got_error_set_errno(errcode, "pthread_cond_destroy");
3520
3521 free_commits(&s->limit_commits);
3522 free_commits(&s->real_commits);
3523 free(s->in_repo_path);
3524 s->in_repo_path = NULL;
3525 free(s->start_id);
3526 s->start_id = NULL;
3527 free(s->head_ref_name);
3528 s->head_ref_name = NULL;
3529 return err;
3530 }
3531
3532 /*
3533 * We use two queues to implement the limit feature: first consists of
3534 * commits matching the current limit_regex; second is the real queue
3535 * of all known commits (real_commits). When the user starts limiting,
3536 * we swap queues such that all movement and displaying functionality
3537 * works with very slight change.
3538 */
3539 static const struct got_error *
3540 limit_log_view(struct tog_view *view)
3541 {
3542 struct tog_log_view_state *s = &view->state.log;
3543 struct commit_queue_entry *entry;
3544 struct tog_view *v = view;
3545 const struct got_error *err = NULL;
3546 char pattern[1024];
3547 int ret;
3548
3549 if (view_is_hsplit_top(view))
3550 v = view->child;
3551 else if (view->mode == TOG_VIEW_SPLIT_VERT && view->parent)
3552 v = view->parent;
3553
3554 /* Get the pattern */
3555 wmove(v->window, v->nlines - 1, 0);
3556 wclrtoeol(v->window);
3557 mvwaddstr(v->window, v->nlines - 1, 0, "&/");
3558 nodelay(v->window, FALSE);
3559 nocbreak();
3560 echo();
3561 ret = wgetnstr(v->window, pattern, sizeof(pattern));
3562 cbreak();
3563 noecho();
3564 nodelay(v->window, TRUE);
3565 if (ret == ERR)
3566 return NULL;
3567
3568 if (*pattern == '\0') {
3569 /*
3570 * Safety measure for the situation where the user
3571 * resets limit without previously limiting anything.
3572 */
3573 if (!s->limit_view)
3574 return NULL;
3575
3576 /*
3577 * User could have pressed Ctrl+L, which refreshed the
3578 * commit queues, it means we can't save previously
3579 * (before limit took place) displayed entries,
3580 * because they would point to already free'ed memory,
3581 * so we are forced to always select first entry of
3582 * the queue.
3583 */
3584 s->commits = &s->real_commits;
3585 s->first_displayed_entry = TAILQ_FIRST(&s->real_commits.head);
3586 s->selected_entry = s->first_displayed_entry;
3587 s->selected = 0;
3588 s->limit_view = 0;
3589
3590 return NULL;
3591 }
3592
3593 if (regcomp(&s->limit_regex, pattern, REG_EXTENDED | REG_NEWLINE))
3594 return NULL;
3595
3596 s->limit_view = 1;
3597
3598 /* Clear the screen while loading limit view */
3599 s->first_displayed_entry = NULL;
3600 s->last_displayed_entry = NULL;
3601 s->selected_entry = NULL;
3602 s->commits = &s->limit_commits;
3603
3604 /* Prepare limit queue for new search */
3605 free_commits(&s->limit_commits);
3606 s->limit_commits.ncommits = 0;
3607
3608 /* First process commits, which are in queue already */
3609 TAILQ_FOREACH(entry, &s->real_commits.head, entry) {
3610 int have_match = 0;
3611
3612 err = match_commit(&have_match, entry->id,
3613 entry->commit, &s->limit_regex);
3614 if (err)
3615 return err;
3616
3617 if (have_match) {
3618 struct commit_queue_entry *matched;
3619
3620 matched = alloc_commit_queue_entry(entry->commit,
3621 entry->id);
3622 if (matched == NULL) {
3623 err = got_error_from_errno(
3624 "alloc_commit_queue_entry");
3625 break;
3626 }
3627 matched->commit = entry->commit;
3628 got_object_commit_retain(entry->commit);
3629
3630 matched->idx = s->limit_commits.ncommits;
3631 TAILQ_INSERT_TAIL(&s->limit_commits.head,
3632 matched, entry);
3633 s->limit_commits.ncommits++;
3634 }
3635 }
3636
3637 /* Second process all the commits, until we fill the screen */
3638 if (s->limit_commits.ncommits < view->nlines - 1 &&
3639 !s->thread_args.log_complete) {
3640 s->thread_args.commits_needed +=
3641 view->nlines - s->limit_commits.ncommits - 1;
3642 err = trigger_log_thread(view, 1);
3643 if (err)
3644 return err;
3645 }
3646
3647 s->first_displayed_entry = TAILQ_FIRST(&s->commits->head);
3648 s->selected_entry = TAILQ_FIRST(&s->commits->head);
3649 s->selected = 0;
3650
3651 return NULL;
3652 }
3653
3654 static const struct got_error *
3655 search_start_log_view(struct tog_view *view)
3656 {
3657 struct tog_log_view_state *s = &view->state.log;
3658
3659 s->matched_entry = NULL;
3660 s->search_entry = NULL;
3661 return NULL;
3662 }
3663
3664 static const struct got_error *
3665 search_next_log_view(struct tog_view *view)
3666 {
3667 const struct got_error *err = NULL;
3668 struct tog_log_view_state *s = &view->state.log;
3669 struct commit_queue_entry *entry;
3670
3671 /* Display progress update in log view. */
3672 show_log_view(view);
3673 update_panels();
3674 doupdate();
3675
3676 if (s->search_entry) {
3677 int errcode, ch;
3678 errcode = pthread_mutex_unlock(&tog_mutex);
3679 if (errcode)
3680 return got_error_set_errno(errcode,
3681 "pthread_mutex_unlock");
3682 ch = wgetch(view->window);
3683 errcode = pthread_mutex_lock(&tog_mutex);
3684 if (errcode)
3685 return got_error_set_errno(errcode,
3686 "pthread_mutex_lock");
3687 if (ch == CTRL('g') || ch == KEY_BACKSPACE) {
3688 view->search_next_done = TOG_SEARCH_HAVE_MORE;
3689 return NULL;
3690 }
3691 if (view->searching == TOG_SEARCH_FORWARD)
3692 entry = TAILQ_NEXT(s->search_entry, entry);
3693 else
3694 entry = TAILQ_PREV(s->search_entry,
3695 commit_queue_head, entry);
3696 } else if (s->matched_entry) {
3697 /*
3698 * If the user has moved the cursor after we hit a match,
3699 * the position from where we should continue searching
3700 * might have changed.
3701 */
3702 if (view->searching == TOG_SEARCH_FORWARD)
3703 entry = TAILQ_NEXT(s->selected_entry, entry);
3704 else
3705 entry = TAILQ_PREV(s->selected_entry, commit_queue_head,
3706 entry);
3707 } else {
3708 entry = s->selected_entry;
3709 }
3710
3711 while (1) {
3712 int have_match = 0;
3713
3714 if (entry == NULL) {
3715 if (s->thread_args.log_complete ||
3716 view->searching == TOG_SEARCH_BACKWARD) {
3717 view->search_next_done =
3718 (s->matched_entry == NULL ?
3719 TOG_SEARCH_HAVE_NONE : TOG_SEARCH_NO_MORE);
3720 s->search_entry = NULL;
3721 return NULL;
3722 }
3723 /*
3724 * Poke the log thread for more commits and return,
3725 * allowing the main loop to make progress. Search
3726 * will resume at s->search_entry once we come back.
3727 */
3728 s->search_entry = s->selected_entry;
3729 s->thread_args.commits_needed++;
3730 return trigger_log_thread(view, 0);
3731 }
3732
3733 err = match_commit(&have_match, entry->id, entry->commit,
3734 &view->regex);
3735 if (err)
3736 break;
3737 if (have_match) {
3738 view->search_next_done = TOG_SEARCH_HAVE_MORE;
3739 s->matched_entry = entry;
3740 break;
3741 }
3742
3743 s->search_entry = entry;
3744 if (view->searching == TOG_SEARCH_FORWARD)
3745 entry = TAILQ_NEXT(entry, entry);
3746 else
3747 entry = TAILQ_PREV(entry, commit_queue_head, entry);
3748 }
3749
3750 if (s->matched_entry) {
3751 int cur = s->selected_entry->idx;
3752 while (cur < s->matched_entry->idx) {
3753 err = input_log_view(NULL, view, KEY_DOWN);
3754 if (err)
3755 return err;
3756 cur++;
3757 }
3758 while (cur > s->matched_entry->idx) {
3759 err = input_log_view(NULL, view, KEY_UP);
3760 if (err)
3761 return err;
3762 cur--;
3763 }
3764 }
3765
3766 s->search_entry = NULL;
3767
3768 return NULL;
3769 }
3770
3771 static const struct got_error *
3772 open_log_view(struct tog_view *view, struct got_object_id *start_id,
3773 struct got_repository *repo, const char *head_ref_name,
3774 const char *in_repo_path, int log_branches,
3775 struct got_worktree *worktree)
3776 {
3777 const struct got_error *err = NULL;
3778 struct tog_log_view_state *s = &view->state.log;
3779 struct got_repository *thread_repo = NULL;
3780 struct got_commit_graph *thread_graph = NULL;
3781 int errcode;
3782
3783 if (in_repo_path != s->in_repo_path) {
3784 free(s->in_repo_path);
3785 s->in_repo_path = strdup(in_repo_path);
3786 if (s->in_repo_path == NULL) {
3787 err = got_error_from_errno("strdup");
3788 goto done;
3789 }
3790 }
3791
3792 /* The commit queue only contains commits being displayed. */
3793 TAILQ_INIT(&s->real_commits.head);
3794 s->real_commits.ncommits = 0;
3795 s->commits = &s->real_commits;
3796
3797 TAILQ_INIT(&s->limit_commits.head);
3798 s->limit_view = 0;
3799 s->limit_commits.ncommits = 0;
3800
3801 s->repo = repo;
3802 if (head_ref_name) {
3803 s->head_ref_name = strdup(head_ref_name);
3804 if (s->head_ref_name == NULL) {
3805 err = got_error_from_errno("strdup");
3806 goto done;
3807 }
3808 }
3809 s->start_id = got_object_id_dup(start_id);
3810 if (s->start_id == NULL) {
3811 err = got_error_from_errno("got_object_id_dup");
3812 goto done;
3813 }
3814 s->log_branches = log_branches;
3815 s->use_committer = 1;
3816
3817 STAILQ_INIT(&s->colors);
3818 if (has_colors() && getenv("TOG_COLORS") != NULL) {
3819 err = add_color(&s->colors, "^$", TOG_COLOR_COMMIT,
3820 get_color_value("TOG_COLOR_COMMIT"));
3821 if (err)
3822 goto done;
3823 err = add_color(&s->colors, "^$", TOG_COLOR_AUTHOR,
3824 get_color_value("TOG_COLOR_AUTHOR"));
3825 if (err) {
3826 free_colors(&s->colors);
3827 goto done;
3828 }
3829 err = add_color(&s->colors, "^$", TOG_COLOR_DATE,
3830 get_color_value("TOG_COLOR_DATE"));
3831 if (err) {
3832 free_colors(&s->colors);
3833 goto done;
3834 }
3835 }
3836
3837 view->show = show_log_view;
3838 view->input = input_log_view;
3839 view->resize = resize_log_view;
3840 view->close = close_log_view;
3841 view->search_start = search_start_log_view;
3842 view->search_next = search_next_log_view;
3843
3844 if (s->thread_args.pack_fds == NULL) {
3845 err = got_repo_pack_fds_open(&s->thread_args.pack_fds);
3846 if (err)
3847 goto done;
3848 }
3849 err = got_repo_open(&thread_repo, got_repo_get_path(repo), NULL,
3850 s->thread_args.pack_fds);
3851 if (err)
3852 goto done;
3853 err = got_commit_graph_open(&thread_graph, s->in_repo_path,
3854 !s->log_branches);
3855 if (err)
3856 goto done;
3857 err = got_commit_graph_iter_start(thread_graph, s->start_id,
3858 s->repo, NULL, NULL);
3859 if (err)
3860 goto done;
3861
3862 errcode = pthread_cond_init(&s->thread_args.need_commits, NULL);
3863 if (errcode) {
3864 err = got_error_set_errno(errcode, "pthread_cond_init");
3865 goto done;
3866 }
3867 errcode = pthread_cond_init(&s->thread_args.commit_loaded, NULL);
3868 if (errcode) {
3869 err = got_error_set_errno(errcode, "pthread_cond_init");
3870 goto done;
3871 }
3872
3873 if (using_mock_io) {
3874 int rc;
3875
3876 rc = pthread_cond_init(&s->thread_args.log_loaded, NULL);
3877 if (rc)
3878 return got_error_set_errno(rc, "pthread_cond_init");
3879 }
3880
3881 s->thread_args.commits_needed = view->nlines;
3882 s->thread_args.graph = thread_graph;
3883 s->thread_args.real_commits = &s->real_commits;
3884 s->thread_args.limit_commits = &s->limit_commits;
3885 s->thread_args.in_repo_path = s->in_repo_path;
3886 s->thread_args.start_id = s->start_id;
3887 s->thread_args.repo = thread_repo;
3888 s->thread_args.log_complete = 0;
3889 s->thread_args.quit = &s->quit;
3890 s->thread_args.first_displayed_entry = &s->first_displayed_entry;
3891 s->thread_args.selected_entry = &s->selected_entry;
3892 s->thread_args.searching = &view->searching;
3893 s->thread_args.search_next_done = &view->search_next_done;
3894 s->thread_args.regex = &view->regex;
3895 s->thread_args.limiting = &s->limit_view;
3896 s->thread_args.limit_regex = &s->limit_regex;
3897 s->thread_args.limit_commits = &s->limit_commits;
3898 s->thread_args.worktree = worktree;
3899 if (worktree)
3900 s->thread_args.need_commit_marker = 1;
3901 done:
3902 if (err) {
3903 if (view->close == NULL)
3904 close_log_view(view);
3905 view_close(view);
3906 }
3907 return err;
3908 }
3909
3910 static const struct got_error *
3911 show_log_view(struct tog_view *view)
3912 {
3913 const struct got_error *err;
3914 struct tog_log_view_state *s = &view->state.log;
3915
3916 if (s->thread == 0) { //NULL) {
3917 int errcode = pthread_create(&s->thread, NULL, log_thread,
3918 &s->thread_args);
3919 if (errcode)
3920 return got_error_set_errno(errcode, "pthread_create");
3921 if (s->thread_args.commits_needed > 0) {
3922 err = trigger_log_thread(view, 1);
3923 if (err)
3924 return err;
3925 }
3926 }
3927
3928 return draw_commits(view);
3929 }
3930
3931 static void
3932 log_move_cursor_up(struct tog_view *view, int page, int home)
3933 {
3934 struct tog_log_view_state *s = &view->state.log;
3935
3936 if (s->first_displayed_entry == NULL)
3937 return;
3938 if (s->selected_entry->idx == 0)
3939 view->count = 0;
3940
3941 if ((page && TAILQ_FIRST(&s->commits->head) == s->first_displayed_entry)
3942 || home)
3943 s->selected = home ? 0 : MAX(0, s->selected - page - 1);
3944
3945 if (!page && !home && s->selected > 0)
3946 --s->selected;
3947 else
3948 log_scroll_up(s, home ? s->commits->ncommits : MAX(page, 1));
3949
3950 select_commit(s);
3951 return;
3952 }
3953
3954 static const struct got_error *
3955 log_move_cursor_down(struct tog_view *view, int page)
3956 {
3957 struct tog_log_view_state *s = &view->state.log;
3958 const struct got_error *err = NULL;
3959 int eos = view->nlines - 2;
3960
3961 if (s->first_displayed_entry == NULL)
3962 return NULL;
3963
3964 if (s->thread_args.log_complete &&
3965 s->selected_entry->idx >= s->commits->ncommits - 1)
3966 return NULL;
3967
3968 if (view_is_hsplit_top(view))
3969 --eos; /* border consumes the last line */
3970
3971 if (!page) {
3972 if (s->selected < MIN(eos, s->commits->ncommits - 1))
3973 ++s->selected;
3974 else
3975 err = log_scroll_down(view, 1);
3976 } else if (s->thread_args.load_all && s->thread_args.log_complete) {
3977 struct commit_queue_entry *entry;
3978 int n;
3979
3980 s->selected = 0;
3981 entry = TAILQ_LAST(&s->commits->head, commit_queue_head);
3982 s->last_displayed_entry = entry;
3983 for (n = 0; n <= eos; n++) {
3984 if (entry == NULL)
3985 break;
3986 s->first_displayed_entry = entry;
3987 entry = TAILQ_PREV(entry, commit_queue_head, entry);
3988 }
3989 if (n > 0)
3990 s->selected = n - 1;
3991 } else {
3992 if (s->last_displayed_entry->idx == s->commits->ncommits - 1 &&
3993 s->thread_args.log_complete)
3994 s->selected += MIN(page,
3995 s->commits->ncommits - s->selected_entry->idx - 1);
3996 else
3997 err = log_scroll_down(view, page);
3998 }
3999 if (err)
4000 return err;
4001
4002 /*
4003 * We might necessarily overshoot in horizontal
4004 * splits; if so, select the last displayed commit.
4005 */
4006 if (s->first_displayed_entry && s->last_displayed_entry) {
4007 s->selected = MIN(s->selected,
4008 s->last_displayed_entry->idx -
4009 s->first_displayed_entry->idx);
4010 }
4011
4012 select_commit(s);
4013
4014 if (s->thread_args.log_complete &&
4015 s->selected_entry->idx == s->commits->ncommits - 1)
4016 view->count = 0;
4017
4018 return NULL;
4019 }
4020
4021 static void
4022 view_get_split(struct tog_view *view, int *y, int *x)
4023 {
4024 *x = 0;
4025 *y = 0;
4026
4027 if (view->mode == TOG_VIEW_SPLIT_HRZN) {
4028 if (view->child && view->child->resized_y)
4029 *y = view->child->resized_y;
4030 else if (view->resized_y)
4031 *y = view->resized_y;
4032 else
4033 *y = view_split_begin_y(view->lines);
4034 } else if (view->mode == TOG_VIEW_SPLIT_VERT) {
4035 if (view->child && view->child->resized_x)
4036 *x = view->child->resized_x;
4037 else if (view->resized_x)
4038 *x = view->resized_x;
4039 else
4040 *x = view_split_begin_x(view->begin_x);
4041 }
4042 }
4043
4044 /* Split view horizontally at y and offset view->state->selected line. */
4045 static const struct got_error *
4046 view_init_hsplit(struct tog_view *view, int y)
4047 {
4048 const struct got_error *err = NULL;
4049
4050 view->nlines = y;
4051 view->ncols = COLS;
4052 err = view_resize(view);
4053 if (err)
4054 return err;
4055
4056 err = offset_selection_down(view);
4057
4058 return err;
4059 }
4060
4061 static const struct got_error *
4062 log_goto_line(struct tog_view *view, int nlines)
4063 {
4064 const struct got_error *err = NULL;
4065 struct tog_log_view_state *s = &view->state.log;
4066 int g, idx = s->selected_entry->idx;
4067
4068 if (s->first_displayed_entry == NULL || s->last_displayed_entry == NULL)
4069 return NULL;
4070
4071 g = view->gline;
4072 view->gline = 0;
4073
4074 if (g >= s->first_displayed_entry->idx + 1 &&
4075 g <= s->last_displayed_entry->idx + 1 &&
4076 g - s->first_displayed_entry->idx - 1 < nlines) {
4077 s->selected = g - s->first_displayed_entry->idx - 1;
4078 select_commit(s);
4079 return NULL;
4080 }
4081
4082 if (idx + 1 < g) {
4083 err = log_move_cursor_down(view, g - idx - 1);
4084 if (!err && g > s->selected_entry->idx + 1)
4085 err = log_move_cursor_down(view,
4086 g - s->first_displayed_entry->idx - 1);
4087 if (err)
4088 return err;
4089 } else if (idx + 1 > g)
4090 log_move_cursor_up(view, idx - g + 1, 0);
4091
4092 if (g < nlines && s->first_displayed_entry->idx == 0)
4093 s->selected = g - 1;
4094
4095 select_commit(s);
4096 return NULL;
4097
4098 }
4099
4100 static void
4101 horizontal_scroll_input(struct tog_view *view, int ch)
4102 {
4103
4104 switch (ch) {
4105 case KEY_LEFT:
4106 case 'h':
4107 view->x -= MIN(view->x, 2);
4108 if (view->x <= 0)
4109 view->count = 0;
4110 break;
4111 case KEY_RIGHT:
4112 case 'l':
4113 if (view->x + view->ncols / 2 < view->maxx)
4114 view->x += 2;
4115 else
4116 view->count = 0;
4117 break;
4118 case '0':
4119 view->x = 0;
4120 break;
4121 case '$':
4122 view->x = MAX(view->maxx - view->ncols / 2, 0);
4123 view->count = 0;
4124 break;
4125 default:
4126 break;
4127 }
4128 }
4129
4130 static const struct got_error *
4131 input_log_view(struct tog_view **new_view, struct tog_view *view, int ch)
4132 {
4133 const struct got_error *err = NULL;
4134 struct tog_log_view_state *s = &view->state.log;
4135 int eos, nscroll;
4136
4137 if (s->thread_args.load_all) {
4138 if (ch == CTRL('g') || ch == KEY_BACKSPACE)
4139 s->thread_args.load_all = 0;
4140 else if (s->thread_args.log_complete) {
4141 err = log_move_cursor_down(view, s->commits->ncommits);
4142 s->thread_args.load_all = 0;
4143 }
4144 if (err)
4145 return err;
4146 }
4147
4148 eos = nscroll = view->nlines - 1;
4149 if (view_is_hsplit_top(view))
4150 --eos; /* border */
4151
4152 if (view->gline)
4153 return log_goto_line(view, eos);
4154
4155 switch (ch) {
4156 case '&':
4157 err = limit_log_view(view);
4158 break;
4159 case 'q':
4160 s->quit = 1;
4161 break;
4162 case '0':
4163 case '$':
4164 case KEY_RIGHT:
4165 case 'l':
4166 case KEY_LEFT:
4167 case 'h':
4168 horizontal_scroll_input(view, ch);
4169 break;
4170 case 'k':
4171 case KEY_UP:
4172 case '<':
4173 case ',':
4174 case CTRL('p'):
4175 log_move_cursor_up(view, 0, 0);
4176 break;
4177 case 'g':
4178 case '=':
4179 case KEY_HOME:
4180 log_move_cursor_up(view, 0, 1);
4181 view->count = 0;
4182 break;
4183 case CTRL('u'):
4184 case 'u':
4185 nscroll /= 2;
4186 /* FALL THROUGH */
4187 case KEY_PPAGE:
4188 case CTRL('b'):
4189 case 'b':
4190 log_move_cursor_up(view, nscroll, 0);
4191 break;
4192 case 'j':
4193 case KEY_DOWN:
4194 case '>':
4195 case '.':
4196 case CTRL('n'):
4197 err = log_move_cursor_down(view, 0);
4198 break;
4199 case '@':
4200 s->use_committer = !s->use_committer;
4201 view->action = s->use_committer ?
4202 "show committer" : "show commit author";
4203 break;
4204 case 'G':
4205 case '*':
4206 case KEY_END: {
4207 /* We don't know yet how many commits, so we're forced to
4208 * traverse them all. */
4209 view->count = 0;
4210 s->thread_args.load_all = 1;
4211 if (!s->thread_args.log_complete)
4212 return trigger_log_thread(view, 0);
4213 err = log_move_cursor_down(view, s->commits->ncommits);
4214 s->thread_args.load_all = 0;
4215 break;
4216 }
4217 case CTRL('d'):
4218 case 'd':
4219 nscroll /= 2;
4220 /* FALL THROUGH */
4221 case KEY_NPAGE:
4222 case CTRL('f'):
4223 case 'f':
4224 case ' ':
4225 err = log_move_cursor_down(view, nscroll);
4226 break;
4227 case KEY_RESIZE:
4228 if (s->selected > view->nlines - 2)
4229 s->selected = view->nlines - 2;
4230 if (s->selected > s->commits->ncommits - 1)
4231 s->selected = s->commits->ncommits - 1;
4232 select_commit(s);
4233 if (s->commits->ncommits < view->nlines - 1 &&
4234 !s->thread_args.log_complete) {
4235 s->thread_args.commits_needed += (view->nlines - 1) -
4236 s->commits->ncommits;
4237 err = trigger_log_thread(view, 1);
4238 }
4239 break;
4240 case KEY_ENTER:
4241 case '\r':
4242 view->count = 0;
4243 if (s->selected_entry == NULL)
4244 break;
4245 err = view_request_new(new_view, view, TOG_VIEW_DIFF);
4246 break;
4247 case 'T':
4248 view->count = 0;
4249 if (s->selected_entry == NULL)
4250 break;
4251 err = view_request_new(new_view, view, TOG_VIEW_TREE);
4252 break;
4253 case KEY_BACKSPACE:
4254 case CTRL('l'):
4255 case 'B':
4256 view->count = 0;
4257 if (ch == KEY_BACKSPACE &&
4258 got_path_is_root_dir(s->in_repo_path))
4259 break;
4260 err = stop_log_thread(s);
4261 if (err)
4262 return err;
4263 if (ch == KEY_BACKSPACE) {
4264 char *parent_path;
4265 err = got_path_dirname(&parent_path, s->in_repo_path);
4266 if (err)
4267 return err;
4268 free(s->in_repo_path);
4269 s->in_repo_path = parent_path;
4270 s->thread_args.in_repo_path = s->in_repo_path;
4271 } else if (ch == CTRL('l')) {
4272 struct got_object_id *start_id;
4273 err = got_repo_match_object_id(&start_id, NULL,
4274 s->head_ref_name ? s->head_ref_name : GOT_REF_HEAD,
4275 GOT_OBJ_TYPE_COMMIT, &tog_refs, s->repo);
4276 if (err) {
4277 if (s->head_ref_name == NULL ||
4278 err->code != GOT_ERR_NOT_REF)
4279 return err;
4280 /* Try to cope with deleted references. */
4281 free(s->head_ref_name);
4282 s->head_ref_name = NULL;
4283 err = got_repo_match_object_id(&start_id,
4284 NULL, GOT_REF_HEAD, GOT_OBJ_TYPE_COMMIT,
4285 &tog_refs, s->repo);
4286 if (err)
4287 return err;
4288 }
4289 free(s->start_id);
4290 s->start_id = start_id;
4291 s->thread_args.start_id = s->start_id;
4292 } else /* 'B' */
4293 s->log_branches = !s->log_branches;
4294
4295 if (s->thread_args.pack_fds == NULL) {
4296 err = got_repo_pack_fds_open(&s->thread_args.pack_fds);
4297 if (err)
4298 return err;
4299 }
4300 err = got_repo_open(&s->thread_args.repo,
4301 got_repo_get_path(s->repo), NULL,
4302 s->thread_args.pack_fds);
4303 if (err)
4304 return err;
4305 tog_free_refs();
4306 err = tog_load_refs(s->repo, 0);
4307 if (err)
4308 return err;
4309 err = got_commit_graph_open(&s->thread_args.graph,
4310 s->in_repo_path, !s->log_branches);
4311 if (err)
4312 return err;
4313 err = got_commit_graph_iter_start(s->thread_args.graph,
4314 s->start_id, s->repo, NULL, NULL);
4315 if (err)
4316 return err;
4317 free_commits(&s->real_commits);
4318 free_commits(&s->limit_commits);
4319 s->first_displayed_entry = NULL;
4320 s->last_displayed_entry = NULL;
4321 s->selected_entry = NULL;
4322 s->selected = 0;
4323 s->thread_args.log_complete = 0;
4324 s->quit = 0;
4325 s->thread_args.commits_needed = view->lines;
4326 s->matched_entry = NULL;
4327 s->search_entry = NULL;
4328 view->offset = 0;
4329 break;
4330 case 'R':
4331 view->count = 0;
4332 err = view_request_new(new_view, view, TOG_VIEW_REF);
4333 break;
4334 default:
4335 view->count = 0;
4336 break;
4337 }
4338
4339 return err;
4340 }
4341
4342 static const struct got_error *
4343 apply_unveil(const char *repo_path, const char *worktree_path)
4344 {
4345 const struct got_error *error;
4346
4347 #ifdef PROFILE
4348 if (unveil("gmon.out", "rwc") != 0)
4349 return got_error_from_errno2("unveil", "gmon.out");
4350 #endif
4351 if (repo_path && unveil(repo_path, "r") != 0)
4352 return got_error_from_errno2("unveil", repo_path);
4353
4354 if (worktree_path && unveil(worktree_path, "rwc") != 0)
4355 return got_error_from_errno2("unveil", worktree_path);
4356
4357 if (unveil(GOT_TMPDIR_STR, "rwc") != 0)
4358 return got_error_from_errno2("unveil", GOT_TMPDIR_STR);
4359
4360 error = got_privsep_unveil_exec_helpers();
4361 if (error != NULL)
4362 return error;
4363
4364 if (unveil(NULL, NULL) != 0)
4365 return got_error_from_errno("unveil");
4366
4367 return NULL;
4368 }
4369
4370 static const struct got_error *
4371 init_mock_term(const char *test_script_path)
4372 {
4373 const struct got_error *err = NULL;
4374 const char *screen_dump_path;
4375 int in;
4376
4377 if (test_script_path == NULL || *test_script_path == '\0')
4378 return got_error_msg(GOT_ERR_IO, "TOG_TEST_SCRIPT not defined");
4379
4380 tog_io.f = fopen(test_script_path, "re");
4381 if (tog_io.f == NULL) {
4382 err = got_error_from_errno_fmt("fopen: %s",
4383 test_script_path);
4384 goto done;
4385 }
4386
4387 /* test mode, we don't want any output */
4388 tog_io.cout = fopen("/dev/null", "w+");
4389 if (tog_io.cout == NULL) {
4390 err = got_error_from_errno2("fopen", "/dev/null");
4391 goto done;
4392 }
4393
4394 in = dup(fileno(tog_io.cout));
4395 if (in == -1) {
4396 err = got_error_from_errno("dup");
4397 goto done;
4398 }
4399 tog_io.cin = fdopen(in, "r");
4400 if (tog_io.cin == NULL) {
4401 err = got_error_from_errno("fdopen");
4402 close(in);
4403 goto done;
4404 }
4405
4406 screen_dump_path = getenv("TOG_SCR_DUMP");
4407 if (screen_dump_path == NULL || *screen_dump_path == '\0')
4408 return got_error_msg(GOT_ERR_IO, "TOG_SCR_DUMP not defined");
4409 tog_io.sdump = fopen(screen_dump_path, "we");
4410 if (tog_io.sdump == NULL) {
4411 err = got_error_from_errno2("fopen", screen_dump_path);
4412 goto done;
4413 }
4414
4415 if (fseeko(tog_io.f, 0L, SEEK_SET) == -1) {
4416 err = got_error_from_errno("fseeko");
4417 goto done;
4418 }
4419
4420 if (newterm(NULL, tog_io.cout, tog_io.cin) == NULL)
4421 err = got_error_msg(GOT_ERR_IO,
4422 "newterm: failed to initialise curses");
4423
4424 using_mock_io = 1;
4425
4426 done:
4427 if (err)
4428 tog_io_close();
4429 return err;
4430 }
4431
4432 static void
4433 init_curses(void)
4434 {
4435 if (using_mock_io) /* In test mode we use a fake terminal */
4436 return;
4437
4438 initscr();
4439
4440 cbreak();
4441 halfdelay(1); /* Fast refresh while initial view is loading. */
4442 noecho();
4443 nonl();
4444 intrflush(stdscr, FALSE);
4445 keypad(stdscr, TRUE);
4446 curs_set(0);
4447 if (getenv("TOG_COLORS") != NULL) {
4448 start_color();
4449 use_default_colors();
4450 }
4451
4452 return;
4453 }
4454
4455 static const struct got_error *
4456 set_tog_base_commit(struct got_repository *repo, struct got_worktree *worktree)
4457 {
4458 tog_base_commit.id = got_object_id_dup(
4459 got_worktree_get_base_commit_id(worktree));
4460 if (tog_base_commit.id == NULL)
4461 return got_error_from_errno( "got_object_id_dup");
4462
4463 return NULL;
4464 }
4465
4466 static const struct got_error *
4467 get_in_repo_path_from_argv0(char **in_repo_path, int argc, char *argv[],
4468 struct got_repository *repo, struct got_worktree *worktree)
4469 {
4470 const struct got_error *err = NULL;
4471
4472 if (argc == 0) {
4473 *in_repo_path = strdup("/");
4474 if (*in_repo_path == NULL)
4475 return got_error_from_errno("strdup");
4476 return NULL;
4477 }
4478
4479 if (worktree) {
4480 const char *prefix = got_worktree_get_path_prefix(worktree);
4481 char *p;
4482
4483 err = got_worktree_resolve_path(&p, worktree, argv[0]);
4484 if (err)
4485 return err;
4486 if (asprintf(in_repo_path, "%s%s%s", prefix,
4487 (p[0] != '\0' && !got_path_is_root_dir(prefix)) ? "/" : "",
4488 p) == -1) {
4489 err = got_error_from_errno("asprintf");
4490 *in_repo_path = NULL;
4491 }
4492 free(p);
4493 } else
4494 err = got_repo_map_path(in_repo_path, repo, argv[0]);
4495
4496 return err;
4497 }
4498
4499 static const struct got_error *
4500 cmd_log(int argc, char *argv[])
4501 {
4502 const struct got_error *error;
4503 struct got_repository *repo = NULL;
4504 struct got_worktree *worktree = NULL;
4505 struct got_object_id *start_id = NULL;
4506 char *in_repo_path = NULL, *repo_path = NULL, *cwd = NULL;
4507 char *keyword_idstr = NULL, *start_commit = NULL, *label = NULL;
4508 struct got_reference *ref = NULL;
4509 const char *head_ref_name = NULL;
4510 int ch, log_branches = 0;
4511 struct tog_view *view;
4512 int *pack_fds = NULL;
4513
4514 while ((ch = getopt(argc, argv, "bc:r:")) != -1) {
4515 switch (ch) {
4516 case 'b':
4517 log_branches = 1;
4518 break;
4519 case 'c':
4520 start_commit = optarg;
4521 break;
4522 case 'r':
4523 repo_path = realpath(optarg, NULL);
4524 if (repo_path == NULL)
4525 return got_error_from_errno2("realpath",
4526 optarg);
4527 break;
4528 default:
4529 usage_log();
4530 /* NOTREACHED */
4531 }
4532 }
4533
4534 argc -= optind;
4535 argv += optind;
4536
4537 if (argc > 1)
4538 usage_log();
4539
4540 error = got_repo_pack_fds_open(&pack_fds);
4541 if (error != NULL)
4542 goto done;
4543
4544 if (repo_path == NULL) {
4545 cwd = getcwd(NULL, 0);
4546 if (cwd == NULL) {
4547 error = got_error_from_errno("getcwd");
4548 goto done;
4549 }
4550 error = got_worktree_open(&worktree, cwd, NULL);
4551 if (error && error->code != GOT_ERR_NOT_WORKTREE)
4552 goto done;
4553 if (worktree)
4554 repo_path =
4555 strdup(got_worktree_get_repo_path(worktree));
4556 else
4557 repo_path = strdup(cwd);
4558 if (repo_path == NULL) {
4559 error = got_error_from_errno("strdup");
4560 goto done;
4561 }
4562 }
4563
4564 error = got_repo_open(&repo, repo_path, NULL, pack_fds);
4565 if (error != NULL)
4566 goto done;
4567
4568 error = get_in_repo_path_from_argv0(&in_repo_path, argc, argv,
4569 repo, worktree);
4570 if (error)
4571 goto done;
4572
4573 init_curses();
4574
4575 error = apply_unveil(got_repo_get_path(repo),
4576 worktree ? got_worktree_get_root_path(worktree) : NULL);
4577 if (error)
4578 goto done;
4579
4580 /* already loaded by tog_log_with_path()? */
4581 if (TAILQ_EMPTY(&tog_refs)) {
4582 error = tog_load_refs(repo, 0);
4583 if (error)
4584 goto done;
4585 }
4586
4587 if (start_commit == NULL) {
4588 error = got_repo_match_object_id(&start_id, &label,
4589 worktree ? got_worktree_get_head_ref_name(worktree) :
4590 GOT_REF_HEAD, GOT_OBJ_TYPE_COMMIT, &tog_refs, repo);
4591 if (error)
4592 goto done;
4593 head_ref_name = label;
4594 } else {
4595 error = got_keyword_to_idstr(&keyword_idstr, start_commit,
4596 repo, worktree);
4597 if (error != NULL)
4598 goto done;
4599 if (keyword_idstr != NULL)
4600 start_commit = keyword_idstr;
4601
4602 error = got_ref_open(&ref, repo, start_commit, 0);
4603 if (error == NULL)
4604 head_ref_name = got_ref_get_name(ref);
4605 else if (error->code != GOT_ERR_NOT_REF)
4606 goto done;
4607 error = got_repo_match_object_id(&start_id, NULL,
4608 start_commit, GOT_OBJ_TYPE_COMMIT, &tog_refs, repo);
4609 if (error)
4610 goto done;
4611 }
4612
4613 view = view_open(0, 0, 0, 0, TOG_VIEW_LOG);
4614 if (view == NULL) {
4615 error = got_error_from_errno("view_open");
4616 goto done;
4617 }
4618
4619 if (worktree) {
4620 error = set_tog_base_commit(repo, worktree);
4621 if (error != NULL)
4622 goto done;
4623 }
4624
4625 error = open_log_view(view, start_id, repo, head_ref_name,
4626 in_repo_path, log_branches, worktree);
4627 if (error)
4628 goto done;
4629
4630 if (worktree) {
4631 /* The work tree will be closed by the log thread. */
4632 worktree = NULL;
4633 }
4634
4635 error = view_loop(view);
4636
4637 done:
4638 free(tog_base_commit.id);
4639 free(keyword_idstr);
4640 free(in_repo_path);
4641 free(repo_path);
4642 free(cwd);
4643 free(start_id);
4644 free(label);
4645 if (ref)
4646 got_ref_close(ref);
4647 if (repo) {
4648 const struct got_error *close_err = got_repo_close(repo);
4649 if (error == NULL)
4650 error = close_err;
4651 }
4652 if (worktree)
4653 got_worktree_close(worktree);
4654 if (pack_fds) {
4655 const struct got_error *pack_err =
4656 got_repo_pack_fds_close(pack_fds);
4657 if (error == NULL)
4658 error = pack_err;
4659 }
4660 tog_free_refs();
4661 return error;
4662 }
4663
4664 __dead static void
4665 usage_diff(void)
4666 {
4667 endwin();
4668 fprintf(stderr, "usage: %s diff [-aw] [-C number] [-r repository-path] "
4669 "object1 object2\n", getprogname());
4670 exit(1);
4671 }
4672
4673 static int
4674 match_line(const char *line, regex_t *regex, size_t nmatch,
4675 regmatch_t *regmatch)
4676 {
4677 return regexec(regex, line, nmatch, regmatch, 0) == 0;
4678 }
4679
4680 static struct tog_color *
4681 match_color(struct tog_colors *colors, const char *line)
4682 {
4683 struct tog_color *tc = NULL;
4684
4685 STAILQ_FOREACH(tc, colors, entry) {
4686 if (match_line(line, &tc->regex, 0, NULL))
4687 return tc;
4688 }
4689
4690 return NULL;
4691 }
4692
4693 static const struct got_error *
4694 add_matched_line(int *wtotal, const char *line, int wlimit, int col_tab_align,
4695 WINDOW *window, int skipcol, regmatch_t *regmatch)
4696 {
4697 const struct got_error *err = NULL;
4698 char *exstr = NULL;
4699 wchar_t *wline = NULL;
4700 int rme, rms, n, width, scrollx;
4701 int width0 = 0, width1 = 0, width2 = 0;
4702 char *seg0 = NULL, *seg1 = NULL, *seg2 = NULL;
4703
4704 *wtotal = 0;
4705
4706 rms = regmatch->rm_so;
4707 rme = regmatch->rm_eo;
4708
4709 err = expand_tab(&exstr, line);
4710 if (err)
4711 return err;
4712
4713 /* Split the line into 3 segments, according to match offsets. */
4714 seg0 = strndup(exstr, rms);
4715 if (seg0 == NULL) {
4716 err = got_error_from_errno("strndup");
4717 goto done;
4718 }
4719 seg1 = strndup(exstr + rms, rme - rms);
4720 if (seg1 == NULL) {
4721 err = got_error_from_errno("strndup");
4722 goto done;
4723 }
4724 seg2 = strdup(exstr + rme);
4725 if (seg2 == NULL) {
4726 err = got_error_from_errno("strndup");
4727 goto done;
4728 }
4729
4730 /* draw up to matched token if we haven't scrolled past it */
4731 err = format_line(&wline, &width0, NULL, seg0, 0, wlimit,
4732 col_tab_align, 1);
4733 if (err)
4734 goto done;
4735 n = MAX(width0 - skipcol, 0);
4736 if (n) {
4737 free(wline);
4738 err = format_line(&wline, &width, &scrollx, seg0, skipcol,
4739 wlimit, col_tab_align, 1);
4740 if (err)
4741 goto done;
4742 waddwstr(window, &wline[scrollx]);
4743 wlimit -= width;
4744 *wtotal += width;
4745 }
4746
4747 if (wlimit > 0) {
4748 int i = 0, w = 0;
4749 size_t wlen;
4750
4751 free(wline);
4752 err = format_line(&wline, &width1, NULL, seg1, 0, wlimit,
4753 col_tab_align, 1);
4754 if (err)
4755 goto done;
4756 wlen = wcslen(wline);
4757 while (i < wlen) {
4758 width = wcwidth(wline[i]);
4759 if (width == -1) {
4760 /* should not happen, tabs are expanded */
4761 err = got_error(GOT_ERR_RANGE);
4762 goto done;
4763 }
4764 if (width0 + w + width > skipcol)
4765 break;
4766 w += width;
4767 i++;
4768 }
4769 /* draw (visible part of) matched token (if scrolled into it) */
4770 if (width1 - w > 0) {
4771 wattron(window, A_STANDOUT);
4772 waddwstr(window, &wline[i]);
4773 wattroff(window, A_STANDOUT);
4774 wlimit -= (width1 - w);
4775 *wtotal += (width1 - w);
4776 }
4777 }
4778
4779 if (wlimit > 0) { /* draw rest of line */
4780 free(wline);
4781 if (skipcol > width0 + width1) {
4782 err = format_line(&wline, &width2, &scrollx, seg2,
4783 skipcol - (width0 + width1), wlimit,
4784 col_tab_align, 1);
4785 if (err)
4786 goto done;
4787 waddwstr(window, &wline[scrollx]);
4788 } else {
4789 err = format_line(&wline, &width2, NULL, seg2, 0,
4790 wlimit, col_tab_align, 1);
4791 if (err)
4792 goto done;
4793 waddwstr(window, wline);
4794 }
4795 *wtotal += width2;
4796 }
4797 done:
4798 free(wline);
4799 free(exstr);
4800 free(seg0);
4801 free(seg1);
4802 free(seg2);
4803 return err;
4804 }
4805
4806 static int
4807 gotoline(struct tog_view *view, int *lineno, int *nprinted)
4808 {
4809 FILE *f = NULL;
4810 int *eof, *first, *selected;
4811
4812 if (view->type == TOG_VIEW_DIFF) {
4813 struct tog_diff_view_state *s = &view->state.diff;
4814
4815 first = &s->first_displayed_line;
4816 selected = first;
4817 eof = &s->eof;
4818 f = s->f;
4819 } else if (view->type == TOG_VIEW_HELP) {
4820 struct tog_help_view_state *s = &view->state.help;
4821
4822 first = &s->first_displayed_line;
4823 selected = first;
4824 eof = &s->eof;
4825 f = s->f;
4826 } else if (view->type == TOG_VIEW_BLAME) {
4827 struct tog_blame_view_state *s = &view->state.blame;
4828
4829 first = &s->first_displayed_line;
4830 selected = &s->selected_line;
4831 eof = &s->eof;
4832 f = s->blame.f;
4833 } else
4834 return 0;
4835
4836 /* Center gline in the middle of the page like vi(1). */
4837 if (*lineno < view->gline - (view->nlines - 3) / 2)
4838 return 0;
4839 if (*first != 1 && (*lineno > view->gline - (view->nlines - 3) / 2)) {
4840 rewind(f);
4841 *eof = 0;
4842 *first = 1;
4843 *lineno = 0;
4844 *nprinted = 0;
4845 return 0;
4846 }
4847
4848 *selected = view->gline <= (view->nlines - 3) / 2 ?
4849 view->gline : (view->nlines - 3) / 2 + 1;
4850 view->gline = 0;
4851
4852 return 1;
4853 }
4854
4855 static const struct got_error *
4856 draw_file(struct tog_view *view, const char *header)
4857 {
4858 struct tog_diff_view_state *s = &view->state.diff;
4859 regmatch_t *regmatch = &view->regmatch;
4860 const struct got_error *err;
4861 int nprinted = 0;
4862 char *line;
4863 size_t linesize = 0;
4864 ssize_t linelen;
4865 wchar_t *wline;
4866 int width;
4867 int max_lines = view->nlines;
4868 int nlines = s->nlines;
4869 off_t line_offset;
4870
4871 s->lineno = s->first_displayed_line - 1;
4872 line_offset = s->lines[s->first_displayed_line - 1].offset;
4873 if (fseeko(s->f, line_offset, SEEK_SET) == -1)
4874 return got_error_from_errno("fseek");
4875
4876 werase(view->window);
4877
4878 if (view->gline > s->nlines - 1)
4879 view->gline = s->nlines - 1;
4880
4881 if (header) {
4882 int ln = view->gline ? view->gline <= (view->nlines - 3) / 2 ?
4883 1 : view->gline - (view->nlines - 3) / 2 :
4884 s->lineno + s->selected_line;
4885
4886 if (asprintf(&line, "[%d/%d] %s", ln, nlines, header) == -1)
4887 return got_error_from_errno("asprintf");
4888 err = format_line(&wline, &width, NULL, line, 0, view->ncols,
4889 0, 0);
4890 free(line);
4891 if (err)
4892 return err;
4893
4894 if (view_needs_focus_indication(view))
4895 wstandout(view->window);
4896 waddwstr(view->window, wline);
4897 free(wline);
4898 wline = NULL;
4899 while (width++ < view->ncols)
4900 waddch(view->window, ' ');
4901 if (view_needs_focus_indication(view))
4902 wstandend(view->window);
4903
4904 if (max_lines <= 1)
4905 return NULL;
4906 max_lines--;
4907 }
4908
4909 s->eof = 0;
4910 view->maxx = 0;
4911 line = NULL;
4912 while (max_lines > 0 && nprinted < max_lines) {
4913 enum got_diff_line_type linetype;
4914 attr_t attr = 0;
4915
4916 linelen = getline(&line, &linesize, s->f);
4917 if (linelen == -1) {
4918 if (feof(s->f)) {
4919 s->eof = 1;
4920 break;
4921 }
4922 free(line);
4923 return got_ferror(s->f, GOT_ERR_IO);
4924 }
4925
4926 if (++s->lineno < s->first_displayed_line)
4927 continue;
4928 if (view->gline && !gotoline(view, &s->lineno, &nprinted))
4929 continue;
4930 if (s->lineno == view->hiline)
4931 attr = A_STANDOUT;
4932
4933 /* Set view->maxx based on full line length. */
4934 err = format_line(&wline, &width, NULL, line, 0, INT_MAX, 0,
4935 view->x ? 1 : 0);
4936 if (err) {
4937 free(line);
4938 return err;
4939 }
4940 view->maxx = MAX(view->maxx, width);
4941 free(wline);
4942 wline = NULL;
4943
4944 linetype = s->lines[s->lineno].type;
4945 if (linetype > GOT_DIFF_LINE_LOGMSG &&
4946 linetype < GOT_DIFF_LINE_CONTEXT)
4947 attr |= COLOR_PAIR(linetype);
4948 if (attr)
4949 wattron(view->window, attr);
4950 if (s->first_displayed_line + nprinted == s->matched_line &&
4951 regmatch->rm_so >= 0 && regmatch->rm_so < regmatch->rm_eo) {
4952 err = add_matched_line(&width, line, view->ncols, 0,
4953 view->window, view->x, regmatch);
4954 if (err) {
4955 free(line);
4956 return err;
4957 }
4958 } else {
4959 int skip;
4960 err = format_line(&wline, &width, &skip, line,
4961 view->x, view->ncols, 0, view->x ? 1 : 0);
4962 if (err) {
4963 free(line);
4964 return err;
4965 }
4966 waddwstr(view->window, &wline[skip]);
4967 free(wline);
4968 wline = NULL;
4969 }
4970 if (s->lineno == view->hiline) {
4971 /* highlight full gline length */
4972 while (width++ < view->ncols)
4973 waddch(view->window, ' ');
4974 } else {
4975 if (width <= view->ncols - 1)
4976 waddch(view->window, '\n');
4977 }
4978 if (attr)
4979 wattroff(view->window, attr);
4980 if (++nprinted == 1)
4981 s->first_displayed_line = s->lineno;
4982 }
4983 free(line);
4984 if (nprinted >= 1)
4985 s->last_displayed_line = s->first_displayed_line +
4986 (nprinted - 1);
4987 else
4988 s->last_displayed_line = s->first_displayed_line;
4989
4990 view_border(view);
4991
4992 if (s->eof) {
4993 while (nprinted < view->nlines) {
4994 waddch(view->window, '\n');
4995 nprinted++;
4996 }
4997
4998 err = format_line(&wline, &width, NULL, TOG_EOF_STRING, 0,
4999 view->ncols, 0, 0);
5000 if (err) {
5001 return err;
5002 }
5003
5004 wstandout(view->window);
5005 waddwstr(view->window, wline);
5006 free(wline);
5007 wline = NULL;
5008 wstandend(view->window);
5009 }
5010
5011 return NULL;
5012 }
5013
5014 static char *
5015 get_datestr(time_t *time, char *datebuf)
5016 {
5017 struct tm mytm, *tm;
5018 char *p, *s;
5019
5020 tm = gmtime_r(time, &mytm);
5021 if (tm == NULL)
5022 return NULL;
5023 s = asctime_r(tm, datebuf);
5024 if (s == NULL)
5025 return NULL;
5026 p = strchr(s, '\n');
5027 if (p)
5028 *p = '\0';
5029 return s;
5030 }
5031
5032 static const struct got_error *
5033 add_line_metadata(struct got_diff_line **lines, size_t *nlines,
5034 off_t off, uint8_t type)
5035 {
5036 struct got_diff_line *p;
5037
5038 p = reallocarray(*lines, *nlines + 1, sizeof(**lines));
5039 if (p == NULL)
5040 return got_error_from_errno("reallocarray");
5041 *lines = p;
5042 (*lines)[*nlines].offset = off;
5043 (*lines)[*nlines].type = type;
5044 (*nlines)++;
5045
5046 return NULL;
5047 }
5048
5049 static const struct got_error *
5050 cat_diff(FILE *dst, FILE *src, struct got_diff_line **d_lines, size_t *d_nlines,
5051 struct got_diff_line *s_lines, size_t s_nlines)
5052 {
5053 struct got_diff_line *p;
5054 char buf[BUFSIZ];
5055 size_t i, r;
5056
5057 if (fseeko(src, 0L, SEEK_SET) == -1)
5058 return got_error_from_errno("fseeko");
5059
5060 for (;;) {
5061 r = fread(buf, 1, sizeof(buf), src);
5062 if (r == 0) {
5063 if (ferror(src))
5064 return got_error_from_errno("fread");
5065 if (feof(src))
5066 break;
5067 }
5068 if (fwrite(buf, 1, r, dst) != r)
5069 return got_ferror(dst, GOT_ERR_IO);
5070 }
5071
5072 if (s_nlines == 0 && *d_nlines == 0)
5073 return NULL;
5074
5075 /*
5076 * If commit info was in dst, increment line offsets
5077 * of the appended diff content, but skip s_lines[0]
5078 * because offset zero is already in *d_lines.
5079 */
5080 if (*d_nlines > 0) {
5081 for (i = 1; i < s_nlines; ++i)
5082 s_lines[i].offset += (*d_lines)[*d_nlines - 1].offset;
5083
5084 if (s_nlines > 0) {
5085 --s_nlines;
5086 ++s_lines;
5087 }
5088 }
5089
5090 p = reallocarray(*d_lines, *d_nlines + s_nlines, sizeof(*p));
5091 if (p == NULL) {
5092 /* d_lines is freed in close_diff_view() */
5093 return got_error_from_errno("reallocarray");
5094 }
5095
5096 *d_lines = p;
5097
5098 memcpy(*d_lines + *d_nlines, s_lines, s_nlines * sizeof(*s_lines));
5099 *d_nlines += s_nlines;
5100
5101 return NULL;
5102 }
5103
5104 static const struct got_error *
5105 write_commit_info(struct got_diff_line **lines, size_t *nlines,
5106 struct got_object_id *commit_id, struct got_reflist_head *refs,
5107 struct got_repository *repo, int ignore_ws, int force_text_diff,
5108 struct got_diffstat_cb_arg *dsa, FILE *outfile)
5109 {
5110 const struct got_error *err = NULL;
5111 char datebuf[26], *datestr;
5112 struct got_commit_object *commit;
5113 char *id_str = NULL, *logmsg = NULL, *s = NULL, *line;
5114 time_t committer_time;
5115 const char *author, *committer;
5116 char *refs_str = NULL;
5117 struct got_pathlist_entry *pe;
5118 off_t outoff = 0;
5119 int n;
5120
5121 err = build_refs_str(&refs_str, refs, commit_id, repo);
5122 if (err)
5123 return err;
5124
5125 err = got_object_open_as_commit(&commit, repo, commit_id);
5126 if (err)
5127 return err;
5128
5129 err = got_object_id_str(&id_str, commit_id);
5130 if (err) {
5131 err = got_error_from_errno("got_object_id_str");
5132 goto done;
5133 }
5134
5135 err = add_line_metadata(lines, nlines, 0, GOT_DIFF_LINE_NONE);
5136 if (err)
5137 goto done;
5138
5139 n = fprintf(outfile, "commit %s%s%s%s\n", id_str, refs_str ? " (" : "",
5140 refs_str ? refs_str : "", refs_str ? ")" : "");
5141 if (n < 0) {
5142 err = got_error_from_errno("fprintf");
5143 goto done;
5144 }
5145 outoff += n;
5146 err = add_line_metadata(lines, nlines, outoff, GOT_DIFF_LINE_META);
5147 if (err)
5148 goto done;
5149
5150 n = fprintf(outfile, "from: %s\n",
5151 got_object_commit_get_author(commit));
5152 if (n < 0) {
5153 err = got_error_from_errno("fprintf");
5154 goto done;
5155 }
5156 outoff += n;
5157 err = add_line_metadata(lines, nlines, outoff, GOT_DIFF_LINE_AUTHOR);
5158 if (err)
5159 goto done;
5160
5161 author = got_object_commit_get_author(commit);
5162 committer = got_object_commit_get_committer(commit);
5163 if (strcmp(author, committer) != 0) {
5164 n = fprintf(outfile, "via: %s\n", committer);
5165 if (n < 0) {
5166 err = got_error_from_errno("fprintf");
5167 goto done;
5168 }
5169 outoff += n;
5170 err = add_line_metadata(lines, nlines, outoff,
5171 GOT_DIFF_LINE_AUTHOR);
5172 if (err)
5173 goto done;
5174 }
5175 committer_time = got_object_commit_get_committer_time(commit);
5176 datestr = get_datestr(&committer_time, datebuf);
5177 if (datestr) {
5178 n = fprintf(outfile, "date: %s UTC\n", datestr);
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,
5185 GOT_DIFF_LINE_DATE);
5186 if (err)
5187 goto done;
5188 }
5189 if (got_object_commit_get_nparents(commit) > 1) {
5190 const struct got_object_id_queue *parent_ids;
5191 struct got_object_qid *qid;
5192 int pn = 1;
5193 parent_ids = got_object_commit_get_parent_ids(commit);
5194 STAILQ_FOREACH(qid, parent_ids, entry) {
5195 err = got_object_id_str(&id_str, &qid->id);
5196 if (err)
5197 goto done;
5198 n = fprintf(outfile, "parent %d: %s\n", pn++, id_str);
5199 if (n < 0) {
5200 err = got_error_from_errno("fprintf");
5201 goto done;
5202 }
5203 outoff += n;
5204 err = add_line_metadata(lines, nlines, outoff,
5205 GOT_DIFF_LINE_META);
5206 if (err)
5207 goto done;
5208 free(id_str);
5209 id_str = NULL;
5210 }
5211 }
5212
5213 err = got_object_commit_get_logmsg(&logmsg, commit);
5214 if (err)
5215 goto done;
5216 s = logmsg;
5217 while ((line = strsep(&s, "\n")) != NULL) {
5218 n = fprintf(outfile, "%s\n", line);
5219 if (n < 0) {
5220 err = got_error_from_errno("fprintf");
5221 goto done;
5222 }
5223 outoff += n;
5224 err = add_line_metadata(lines, nlines, outoff,
5225 GOT_DIFF_LINE_LOGMSG);
5226 if (err)
5227 goto done;
5228 }
5229
5230 TAILQ_FOREACH(pe, dsa->paths, entry) {
5231 struct got_diff_changed_path *cp = pe->data;
5232 int pad = dsa->max_path_len - pe->path_len + 1;
5233
5234 n = fprintf(outfile, "%c %s%*c | %*d+ %*d-\n", cp->status,
5235 pe->path, pad, ' ', dsa->add_cols + 1, cp->add,
5236 dsa->rm_cols + 1, cp->rm);
5237 if (n < 0) {
5238 err = got_error_from_errno("fprintf");
5239 goto done;
5240 }
5241 outoff += n;
5242 err = add_line_metadata(lines, nlines, outoff,
5243 GOT_DIFF_LINE_CHANGES);
5244 if (err)
5245 goto done;
5246 }
5247
5248 fputc('\n', outfile);
5249 outoff++;
5250 err = add_line_metadata(lines, nlines, outoff, GOT_DIFF_LINE_NONE);
5251 if (err)
5252 goto done;
5253
5254 n = fprintf(outfile,
5255 "%d file%s changed, %d insertion%s(+), %d deletion%s(-)\n",
5256 dsa->nfiles, dsa->nfiles > 1 ? "s" : "", dsa->ins,
5257 dsa->ins != 1 ? "s" : "", dsa->del, dsa->del != 1 ? "s" : "");
5258 if (n < 0) {
5259 err = got_error_from_errno("fprintf");
5260 goto done;
5261 }
5262 outoff += n;
5263 err = add_line_metadata(lines, nlines, outoff, GOT_DIFF_LINE_NONE);
5264 if (err)
5265 goto done;
5266
5267 fputc('\n', outfile);
5268 outoff++;
5269 err = add_line_metadata(lines, nlines, outoff, GOT_DIFF_LINE_NONE);
5270 done:
5271 free(id_str);
5272 free(logmsg);
5273 free(refs_str);
5274 got_object_commit_close(commit);
5275 if (err) {
5276 free(*lines);
5277 *lines = NULL;
5278 *nlines = 0;
5279 }
5280 return err;
5281 }
5282
5283 static const struct got_error *
5284 create_diff(struct tog_diff_view_state *s)
5285 {
5286 const struct got_error *err = NULL;
5287 FILE *f = NULL, *tmp_diff_file = NULL;
5288 int obj_type;
5289 struct got_diff_line *lines = NULL;
5290 struct got_pathlist_head changed_paths;
5291
5292 TAILQ_INIT(&changed_paths);
5293
5294 free(s->lines);
5295 s->lines = malloc(sizeof(*s->lines));
5296 if (s->lines == NULL)
5297 return got_error_from_errno("malloc");
5298 s->nlines = 0;
5299
5300 f = got_opentemp();
5301 if (f == NULL) {
5302 err = got_error_from_errno("got_opentemp");
5303 goto done;
5304 }
5305 tmp_diff_file = got_opentemp();
5306 if (tmp_diff_file == NULL) {
5307 err = got_error_from_errno("got_opentemp");
5308 goto done;
5309 }
5310 if (s->f && fclose(s->f) == EOF) {
5311 err = got_error_from_errno("fclose");
5312 goto done;
5313 }
5314 s->f = f;
5315
5316 if (s->id1)
5317 err = got_object_get_type(&obj_type, s->repo, s->id1);
5318 else
5319 err = got_object_get_type(&obj_type, s->repo, s->id2);
5320 if (err)
5321 goto done;
5322
5323 switch (obj_type) {
5324 case GOT_OBJ_TYPE_BLOB:
5325 err = got_diff_objects_as_blobs(&s->lines, &s->nlines,
5326 s->f1, s->f2, s->fd1, s->fd2, s->id1, s->id2,
5327 s->label1, s->label2, tog_diff_algo, s->diff_context,
5328 s->ignore_whitespace, s->force_text_diff, NULL, s->repo,
5329 s->f);
5330 break;
5331 case GOT_OBJ_TYPE_TREE:
5332 err = got_diff_objects_as_trees(&s->lines, &s->nlines,
5333 s->f1, s->f2, s->fd1, s->fd2, s->id1, s->id2, NULL, "", "",
5334 tog_diff_algo, s->diff_context, s->ignore_whitespace,
5335 s->force_text_diff, NULL, s->repo, s->f);
5336 break;
5337 case GOT_OBJ_TYPE_COMMIT: {
5338 const struct got_object_id_queue *parent_ids;
5339 struct got_object_qid *pid;
5340 struct got_commit_object *commit2;
5341 struct got_reflist_head *refs;
5342 size_t nlines = 0;
5343 struct got_diffstat_cb_arg dsa = {
5344 0, 0, 0, 0, 0, 0,
5345 &changed_paths,
5346 s->ignore_whitespace,
5347 s->force_text_diff,
5348 tog_diff_algo
5349 };
5350
5351 lines = malloc(sizeof(*lines));
5352 if (lines == NULL) {
5353 err = got_error_from_errno("malloc");
5354 goto done;
5355 }
5356
5357 /* build diff first in tmp file then append to commit info */
5358 err = got_diff_objects_as_commits(&lines, &nlines,
5359 s->f1, s->f2, s->fd1, s->fd2, s->id1, s->id2, NULL,
5360 tog_diff_algo, s->diff_context, s->ignore_whitespace,
5361 s->force_text_diff, &dsa, s->repo, tmp_diff_file);
5362 if (err)
5363 break;
5364
5365 err = got_object_open_as_commit(&commit2, s->repo, s->id2);
5366 if (err)
5367 goto done;
5368 refs = got_reflist_object_id_map_lookup(tog_refs_idmap, s->id2);
5369 /* Show commit info if we're diffing to a parent/root commit. */
5370 if (s->id1 == NULL) {
5371 err = write_commit_info(&s->lines, &s->nlines, s->id2,
5372 refs, s->repo, s->ignore_whitespace,
5373 s->force_text_diff, &dsa, s->f);
5374 if (err)
5375 goto done;
5376 } else {
5377 parent_ids = got_object_commit_get_parent_ids(commit2);
5378 STAILQ_FOREACH(pid, parent_ids, entry) {
5379 if (got_object_id_cmp(s->id1, &pid->id) == 0) {
5380 err = write_commit_info(&s->lines,
5381 &s->nlines, s->id2, refs, s->repo,
5382 s->ignore_whitespace,
5383 s->force_text_diff, &dsa, s->f);
5384 if (err)
5385 goto done;
5386 break;
5387 }
5388 }
5389 }
5390 got_object_commit_close(commit2);
5391
5392 err = cat_diff(s->f, tmp_diff_file, &s->lines, &s->nlines,
5393 lines, nlines);
5394 break;
5395 }
5396 default:
5397 err = got_error(GOT_ERR_OBJ_TYPE);
5398 break;
5399 }
5400 done:
5401 free(lines);
5402 got_pathlist_free(&changed_paths, GOT_PATHLIST_FREE_ALL);
5403 if (s->f && fflush(s->f) != 0 && err == NULL)
5404 err = got_error_from_errno("fflush");
5405 if (tmp_diff_file && fclose(tmp_diff_file) == EOF && err == NULL)
5406 err = got_error_from_errno("fclose");
5407 return err;
5408 }
5409
5410 static void
5411 diff_view_indicate_progress(struct tog_view *view)
5412 {
5413 mvwaddstr(view->window, 0, 0, "diffing...");
5414 update_panels();
5415 doupdate();
5416 }
5417
5418 static const struct got_error *
5419 search_start_diff_view(struct tog_view *view)
5420 {
5421 struct tog_diff_view_state *s = &view->state.diff;
5422
5423 s->matched_line = 0;
5424 return NULL;
5425 }
5426
5427 static void
5428 search_setup_diff_view(struct tog_view *view, FILE **f, off_t **line_offsets,
5429 size_t *nlines, int **first, int **last, int **match, int **selected)
5430 {
5431 struct tog_diff_view_state *s = &view->state.diff;
5432
5433 *f = s->f;
5434 *nlines = s->nlines;
5435 *line_offsets = NULL;
5436 *match = &s->matched_line;
5437 *first = &s->first_displayed_line;
5438 *last = &s->last_displayed_line;
5439 *selected = &s->selected_line;
5440 }
5441
5442 static const struct got_error *
5443 search_next_view_match(struct tog_view *view)
5444 {
5445 const struct got_error *err = NULL;
5446 FILE *f;
5447 int lineno;
5448 char *line = NULL;
5449 size_t linesize = 0;
5450 ssize_t linelen;
5451 off_t *line_offsets;
5452 size_t nlines = 0;
5453 int *first, *last, *match, *selected;
5454
5455 if (!view->search_setup)
5456 return got_error_msg(GOT_ERR_NOT_IMPL,
5457 "view search not supported");
5458 view->search_setup(view, &f, &line_offsets, &nlines, &first, &last,
5459 &match, &selected);
5460
5461 if (!view->searching) {
5462 view->search_next_done = TOG_SEARCH_HAVE_MORE;
5463 return NULL;
5464 }
5465
5466 if (*match) {
5467 if (view->searching == TOG_SEARCH_FORWARD)
5468 lineno = *first + 1;
5469 else
5470 lineno = *first - 1;
5471 } else
5472 lineno = *first - 1 + *selected;
5473
5474 while (1) {
5475 off_t offset;
5476
5477 if (lineno <= 0 || lineno > nlines) {
5478 if (*match == 0) {
5479 view->search_next_done = TOG_SEARCH_HAVE_MORE;
5480 break;
5481 }
5482
5483 if (view->searching == TOG_SEARCH_FORWARD)
5484 lineno = 1;
5485 else
5486 lineno = nlines;
5487 }
5488
5489 offset = view->type == TOG_VIEW_DIFF ?
5490 view->state.diff.lines[lineno - 1].offset :
5491 line_offsets[lineno - 1];
5492 if (fseeko(f, offset, SEEK_SET) != 0) {
5493 free(line);
5494 return got_error_from_errno("fseeko");
5495 }
5496 linelen = getline(&line, &linesize, f);
5497 if (linelen != -1) {
5498 char *exstr;
5499 err = expand_tab(&exstr, line);
5500 if (err)
5501 break;
5502 if (match_line(exstr, &view->regex, 1,
5503 &view->regmatch)) {
5504 view->search_next_done = TOG_SEARCH_HAVE_MORE;
5505 *match = lineno;
5506 free(exstr);
5507 break;
5508 }
5509 free(exstr);
5510 }
5511 if (view->searching == TOG_SEARCH_FORWARD)
5512 lineno++;
5513 else
5514 lineno--;
5515 }
5516 free(line);
5517
5518 if (*match) {
5519 *first = *match;
5520 *selected = 1;
5521 }
5522
5523 return err;
5524 }
5525
5526 static const struct got_error *
5527 close_diff_view(struct tog_view *view)
5528 {
5529 const struct got_error *err = NULL;
5530 struct tog_diff_view_state *s = &view->state.diff;
5531
5532 free(s->id1);
5533 s->id1 = NULL;
5534 free(s->id2);
5535 s->id2 = NULL;
5536 if (s->f && fclose(s->f) == EOF)
5537 err = got_error_from_errno("fclose");
5538 s->f = NULL;
5539 if (s->f1 && fclose(s->f1) == EOF && err == NULL)
5540 err = got_error_from_errno("fclose");
5541 s->f1 = NULL;
5542 if (s->f2 && fclose(s->f2) == EOF && err == NULL)
5543 err = got_error_from_errno("fclose");
5544 s->f2 = NULL;
5545 if (s->fd1 != -1 && close(s->fd1) == -1 && err == NULL)
5546 err = got_error_from_errno("close");
5547 s->fd1 = -1;
5548 if (s->fd2 != -1 && close(s->fd2) == -1 && err == NULL)
5549 err = got_error_from_errno("close");
5550 s->fd2 = -1;
5551 free(s->lines);
5552 s->lines = NULL;
5553 s->nlines = 0;
5554 return err;
5555 }
5556
5557 static const struct got_error *
5558 open_diff_view(struct tog_view *view, struct got_object_id *id1,
5559 struct got_object_id *id2, const char *label1, const char *label2,
5560 int diff_context, int ignore_whitespace, int force_text_diff,
5561 struct tog_view *parent_view, struct got_repository *repo)
5562 {
5563 const struct got_error *err;
5564 struct tog_diff_view_state *s = &view->state.diff;
5565
5566 memset(s, 0, sizeof(*s));
5567 s->fd1 = -1;
5568 s->fd2 = -1;
5569
5570 if (id1 != NULL && id2 != NULL) {
5571 int type1, type2;
5572
5573 err = got_object_get_type(&type1, repo, id1);
5574 if (err)
5575 goto done;
5576 err = got_object_get_type(&type2, repo, id2);
5577 if (err)
5578 goto done;
5579
5580 if (type1 != type2) {
5581 err = got_error(GOT_ERR_OBJ_TYPE);
5582 goto done;
5583 }
5584 }
5585 s->first_displayed_line = 1;
5586 s->last_displayed_line = view->nlines;
5587 s->selected_line = 1;
5588 s->repo = repo;
5589 s->id1 = id1;
5590 s->id2 = id2;
5591 s->label1 = label1;
5592 s->label2 = label2;
5593
5594 if (id1) {
5595 s->id1 = got_object_id_dup(id1);
5596 if (s->id1 == NULL) {
5597 err = got_error_from_errno("got_object_id_dup");
5598 goto done;
5599 }
5600 } else
5601 s->id1 = NULL;
5602
5603 s->id2 = got_object_id_dup(id2);
5604 if (s->id2 == NULL) {
5605 err = got_error_from_errno("got_object_id_dup");
5606 goto done;
5607 }
5608
5609 s->f1 = got_opentemp();
5610 if (s->f1 == NULL) {
5611 err = got_error_from_errno("got_opentemp");
5612 goto done;
5613 }
5614
5615 s->f2 = got_opentemp();
5616 if (s->f2 == NULL) {
5617 err = got_error_from_errno("got_opentemp");
5618 goto done;
5619 }
5620
5621 s->fd1 = got_opentempfd();
5622 if (s->fd1 == -1) {
5623 err = got_error_from_errno("got_opentempfd");
5624 goto done;
5625 }
5626
5627 s->fd2 = got_opentempfd();
5628 if (s->fd2 == -1) {
5629 err = got_error_from_errno("got_opentempfd");
5630 goto done;
5631 }
5632
5633 s->diff_context = diff_context;
5634 s->ignore_whitespace = ignore_whitespace;
5635 s->force_text_diff = force_text_diff;
5636 s->parent_view = parent_view;
5637 s->repo = repo;
5638
5639 if (has_colors() && getenv("TOG_COLORS") != NULL && !using_mock_io) {
5640 int rc;
5641
5642 rc = init_pair(GOT_DIFF_LINE_MINUS,
5643 get_color_value("TOG_COLOR_DIFF_MINUS"), -1);
5644 if (rc != ERR)
5645 rc = init_pair(GOT_DIFF_LINE_PLUS,
5646 get_color_value("TOG_COLOR_DIFF_PLUS"), -1);
5647 if (rc != ERR)
5648 rc = init_pair(GOT_DIFF_LINE_HUNK,
5649 get_color_value("TOG_COLOR_DIFF_CHUNK_HEADER"), -1);
5650 if (rc != ERR)
5651 rc = init_pair(GOT_DIFF_LINE_META,
5652 get_color_value("TOG_COLOR_DIFF_META"), -1);
5653 if (rc != ERR)
5654 rc = init_pair(GOT_DIFF_LINE_CHANGES,
5655 get_color_value("TOG_COLOR_DIFF_META"), -1);
5656 if (rc != ERR)
5657 rc = init_pair(GOT_DIFF_LINE_BLOB_MIN,
5658 get_color_value("TOG_COLOR_DIFF_META"), -1);
5659 if (rc != ERR)
5660 rc = init_pair(GOT_DIFF_LINE_BLOB_PLUS,
5661 get_color_value("TOG_COLOR_DIFF_META"), -1);
5662 if (rc != ERR)
5663 rc = init_pair(GOT_DIFF_LINE_AUTHOR,
5664 get_color_value("TOG_COLOR_AUTHOR"), -1);
5665 if (rc != ERR)
5666 rc = init_pair(GOT_DIFF_LINE_DATE,
5667 get_color_value("TOG_COLOR_DATE"), -1);
5668 if (rc == ERR) {
5669 err = got_error(GOT_ERR_RANGE);
5670 goto done;
5671 }
5672 }
5673
5674 if (parent_view && parent_view->type == TOG_VIEW_LOG &&
5675 view_is_splitscreen(view))
5676 show_log_view(parent_view); /* draw border */
5677 diff_view_indicate_progress(view);
5678
5679 err = create_diff(s);
5680
5681 view->show = show_diff_view;
5682 view->input = input_diff_view;
5683 view->reset = reset_diff_view;
5684 view->close = close_diff_view;
5685 view->search_start = search_start_diff_view;
5686 view->search_setup = search_setup_diff_view;
5687 view->search_next = search_next_view_match;
5688 done:
5689 if (err) {
5690 if (view->close == NULL)
5691 close_diff_view(view);
5692 view_close(view);
5693 }
5694 return err;
5695 }
5696
5697 static const struct got_error *
5698 show_diff_view(struct tog_view *view)
5699 {
5700 const struct got_error *err;
5701 struct tog_diff_view_state *s = &view->state.diff;
5702 char *id_str1 = NULL, *id_str2, *header;
5703 const char *label1, *label2;
5704
5705 if (s->id1) {
5706 err = got_object_id_str(&id_str1, s->id1);
5707 if (err)
5708 return err;
5709 label1 = s->label1 ? s->label1 : id_str1;
5710 } else
5711 label1 = "/dev/null";
5712
5713 err = got_object_id_str(&id_str2, s->id2);
5714 if (err)
5715 return err;
5716 label2 = s->label2 ? s->label2 : id_str2;
5717
5718 if (asprintf(&header, "diff %s %s", label1, label2) == -1) {
5719 err = got_error_from_errno("asprintf");
5720 free(id_str1);
5721 free(id_str2);
5722 return err;
5723 }
5724 free(id_str1);
5725 free(id_str2);
5726
5727 err = draw_file(view, header);
5728 free(header);
5729 return err;
5730 }
5731
5732 static const struct got_error *
5733 set_selected_commit(struct tog_diff_view_state *s,
5734 struct commit_queue_entry *entry)
5735 {
5736 const struct got_error *err;
5737 const struct got_object_id_queue *parent_ids;
5738 struct got_commit_object *selected_commit;
5739 struct got_object_qid *pid;
5740
5741 free(s->id2);
5742 s->id2 = got_object_id_dup(entry->id);
5743 if (s->id2 == NULL)
5744 return got_error_from_errno("got_object_id_dup");
5745
5746 err = got_object_open_as_commit(&selected_commit, s->repo, entry->id);
5747 if (err)
5748 return err;
5749 parent_ids = got_object_commit_get_parent_ids(selected_commit);
5750 free(s->id1);
5751 pid = STAILQ_FIRST(parent_ids);
5752 s->id1 = pid ? got_object_id_dup(&pid->id) : NULL;
5753 got_object_commit_close(selected_commit);
5754 return NULL;
5755 }
5756
5757 static const struct got_error *
5758 reset_diff_view(struct tog_view *view)
5759 {
5760 struct tog_diff_view_state *s = &view->state.diff;
5761
5762 view->count = 0;
5763 wclear(view->window);
5764 s->first_displayed_line = 1;
5765 s->last_displayed_line = view->nlines;
5766 s->matched_line = 0;
5767 diff_view_indicate_progress(view);
5768 return create_diff(s);
5769 }
5770
5771 static void
5772 diff_prev_index(struct tog_diff_view_state *s, enum got_diff_line_type type)
5773 {
5774 int start, i;
5775
5776 i = start = s->first_displayed_line - 1;
5777
5778 while (s->lines[i].type != type) {
5779 if (i == 0)
5780 i = s->nlines - 1;
5781 if (--i == start)
5782 return; /* do nothing, requested type not in file */
5783 }
5784
5785 s->selected_line = 1;
5786 s->first_displayed_line = i;
5787 }
5788
5789 static void
5790 diff_next_index(struct tog_diff_view_state *s, enum got_diff_line_type type)
5791 {
5792 int start, i;
5793
5794 i = start = s->first_displayed_line + 1;
5795
5796 while (s->lines[i].type != type) {
5797 if (i == s->nlines - 1)
5798 i = 0;
5799 if (++i == start)
5800 return; /* do nothing, requested type not in file */
5801 }
5802
5803 s->selected_line = 1;
5804 s->first_displayed_line = i;
5805 }
5806
5807 static struct got_object_id *get_selected_commit_id(struct tog_blame_line *,
5808 int, int, int);
5809 static struct got_object_id *get_annotation_for_line(struct tog_blame_line *,
5810 int, int);
5811
5812 static const struct got_error *
5813 input_diff_view(struct tog_view **new_view, struct tog_view *view, int ch)
5814 {
5815 const struct got_error *err = NULL;
5816 struct tog_diff_view_state *s = &view->state.diff;
5817 struct tog_log_view_state *ls;
5818 struct commit_queue_entry *old_selected_entry;
5819 char *line = NULL;
5820 size_t linesize = 0;
5821 ssize_t linelen;
5822 int i, nscroll = view->nlines - 1, up = 0;
5823
5824 s->lineno = s->first_displayed_line - 1 + s->selected_line;
5825
5826 switch (ch) {
5827 case '0':
5828 case '$':
5829 case KEY_RIGHT:
5830 case 'l':
5831 case KEY_LEFT:
5832 case 'h':
5833 horizontal_scroll_input(view, ch);
5834 break;
5835 case 'a':
5836 case 'w':
5837 if (ch == 'a') {
5838 s->force_text_diff = !s->force_text_diff;
5839 view->action = s->force_text_diff ?
5840 "force ASCII text enabled" :
5841 "force ASCII text disabled";
5842 }
5843 else if (ch == 'w') {
5844 s->ignore_whitespace = !s->ignore_whitespace;
5845 view->action = s->ignore_whitespace ?
5846 "ignore whitespace enabled" :
5847 "ignore whitespace disabled";
5848 }
5849 err = reset_diff_view(view);
5850 break;
5851 case 'g':
5852 case KEY_HOME:
5853 s->first_displayed_line = 1;
5854 view->count = 0;
5855 break;
5856 case 'G':
5857 case KEY_END:
5858 view->count = 0;
5859 if (s->eof)
5860 break;
5861
5862 s->first_displayed_line = (s->nlines - view->nlines) + 2;
5863 s->eof = 1;
5864 break;
5865 case 'k':
5866 case KEY_UP:
5867 case CTRL('p'):
5868 if (s->first_displayed_line > 1)
5869 s->first_displayed_line--;
5870 else
5871 view->count = 0;
5872 break;
5873 case CTRL('u'):
5874 case 'u':
5875 nscroll /= 2;
5876 /* FALL THROUGH */
5877 case KEY_PPAGE:
5878 case CTRL('b'):
5879 case 'b':
5880 if (s->first_displayed_line == 1) {
5881 view->count = 0;
5882 break;
5883 }
5884 i = 0;
5885 while (i++ < nscroll && s->first_displayed_line > 1)
5886 s->first_displayed_line--;
5887 break;
5888 case 'j':
5889 case KEY_DOWN:
5890 case CTRL('n'):
5891 if (!s->eof)
5892 s->first_displayed_line++;
5893 else
5894 view->count = 0;
5895 break;
5896 case CTRL('d'):
5897 case 'd':
5898 nscroll /= 2;
5899 /* FALL THROUGH */
5900 case KEY_NPAGE:
5901 case CTRL('f'):
5902 case 'f':
5903 case ' ':
5904 if (s->eof) {
5905 view->count = 0;
5906 break;
5907 }
5908 i = 0;
5909 while (!s->eof && i++ < nscroll) {
5910 linelen = getline(&line, &linesize, s->f);
5911 s->first_displayed_line++;
5912 if (linelen == -1) {
5913 if (feof(s->f)) {
5914 s->eof = 1;
5915 } else
5916 err = got_ferror(s->f, GOT_ERR_IO);
5917 break;
5918 }
5919 }
5920 free(line);
5921 break;
5922 case '(':
5923 diff_prev_index(s, GOT_DIFF_LINE_BLOB_MIN);
5924 break;
5925 case ')':
5926 diff_next_index(s, GOT_DIFF_LINE_BLOB_MIN);
5927 break;
5928 case '{':
5929 diff_prev_index(s, GOT_DIFF_LINE_HUNK);
5930 break;
5931 case '}':
5932 diff_next_index(s, GOT_DIFF_LINE_HUNK);
5933 break;
5934 case '[':
5935 if (s->diff_context > 0) {
5936 s->diff_context--;
5937 s->matched_line = 0;
5938 diff_view_indicate_progress(view);
5939 err = create_diff(s);
5940 if (s->first_displayed_line + view->nlines - 1 >
5941 s->nlines) {
5942 s->first_displayed_line = 1;
5943 s->last_displayed_line = view->nlines;
5944 }
5945 } else
5946 view->count = 0;
5947 break;
5948 case ']':
5949 if (s->diff_context < GOT_DIFF_MAX_CONTEXT) {
5950 s->diff_context++;
5951 s->matched_line = 0;
5952 diff_view_indicate_progress(view);
5953 err = create_diff(s);
5954 } else
5955 view->count = 0;
5956 break;
5957 case '<':
5958 case ',':
5959 case 'K':
5960 up = 1;
5961 /* FALL THROUGH */
5962 case '>':
5963 case '.':
5964 case 'J':
5965 if (s->parent_view == NULL) {
5966 view->count = 0;
5967 break;
5968 }
5969 s->parent_view->count = view->count;
5970
5971 if (s->parent_view->type == TOG_VIEW_LOG) {
5972 ls = &s->parent_view->state.log;
5973 old_selected_entry = ls->selected_entry;
5974
5975 err = input_log_view(NULL, s->parent_view,
5976 up ? KEY_UP : KEY_DOWN);
5977 if (err)
5978 break;
5979 view->count = s->parent_view->count;
5980
5981 if (old_selected_entry == ls->selected_entry)
5982 break;
5983
5984 err = set_selected_commit(s, ls->selected_entry);
5985 if (err)
5986 break;
5987 } else if (s->parent_view->type == TOG_VIEW_BLAME) {
5988 struct tog_blame_view_state *bs;
5989 struct got_object_id *id, *prev_id;
5990
5991 bs = &s->parent_view->state.blame;
5992 prev_id = get_annotation_for_line(bs->blame.lines,
5993 bs->blame.nlines, bs->last_diffed_line);
5994
5995 err = input_blame_view(&view, s->parent_view,
5996 up ? KEY_UP : KEY_DOWN);
5997 if (err)
5998 break;
5999 view->count = s->parent_view->count;
6000
6001 if (prev_id == NULL)
6002 break;
6003 id = get_selected_commit_id(bs->blame.lines,
6004 bs->blame.nlines, bs->first_displayed_line,
6005 bs->selected_line);
6006 if (id == NULL)
6007 break;
6008
6009 if (!got_object_id_cmp(prev_id, id))
6010 break;
6011
6012 err = input_blame_view(&view, s->parent_view, KEY_ENTER);
6013 if (err)
6014 break;
6015 }
6016 s->first_displayed_line = 1;
6017 s->last_displayed_line = view->nlines;
6018 s->matched_line = 0;
6019 view->x = 0;
6020
6021 diff_view_indicate_progress(view);
6022 err = create_diff(s);
6023 break;
6024 default:
6025 view->count = 0;
6026 break;
6027 }
6028
6029 return err;
6030 }
6031
6032 static const struct got_error *
6033 cmd_diff(int argc, char *argv[])
6034 {
6035 const struct got_error *error;
6036 struct got_repository *repo = NULL;
6037 struct got_worktree *worktree = NULL;
6038 struct got_object_id *id1 = NULL, *id2 = NULL;
6039 char *repo_path = NULL, *cwd = NULL;
6040 char *id_str1 = NULL, *id_str2 = NULL;
6041 char *keyword_idstr1 = NULL, *keyword_idstr2 = NULL;
6042 char *label1 = NULL, *label2 = NULL;
6043 int diff_context = 3, ignore_whitespace = 0;
6044 int ch, force_text_diff = 0;
6045 const char *errstr;
6046 struct tog_view *view;
6047 int *pack_fds = NULL;
6048
6049 while ((ch = getopt(argc, argv, "aC:r:w")) != -1) {
6050 switch (ch) {
6051 case 'a':
6052 force_text_diff = 1;
6053 break;
6054 case 'C':
6055 diff_context = strtonum(optarg, 0, GOT_DIFF_MAX_CONTEXT,
6056 &errstr);
6057 if (errstr != NULL)
6058 errx(1, "number of context lines is %s: %s",
6059 errstr, errstr);
6060 break;
6061 case 'r':
6062 repo_path = realpath(optarg, NULL);
6063 if (repo_path == NULL)
6064 return got_error_from_errno2("realpath",
6065 optarg);
6066 got_path_strip_trailing_slashes(repo_path);
6067 break;
6068 case 'w':
6069 ignore_whitespace = 1;
6070 break;
6071 default:
6072 usage_diff();
6073 /* NOTREACHED */
6074 }
6075 }
6076
6077 argc -= optind;
6078 argv += optind;
6079
6080 if (argc == 0) {
6081 usage_diff(); /* TODO show local worktree changes */
6082 } else if (argc == 2) {
6083 id_str1 = argv[0];
6084 id_str2 = argv[1];
6085 } else
6086 usage_diff();
6087
6088 error = got_repo_pack_fds_open(&pack_fds);
6089 if (error)
6090 goto done;
6091
6092 if (repo_path == NULL) {
6093 cwd = getcwd(NULL, 0);
6094 if (cwd == NULL)
6095 return got_error_from_errno("getcwd");
6096 error = got_worktree_open(&worktree, cwd, NULL);
6097 if (error && error->code != GOT_ERR_NOT_WORKTREE)
6098 goto done;
6099 if (worktree)
6100 repo_path =
6101 strdup(got_worktree_get_repo_path(worktree));
6102 else
6103 repo_path = strdup(cwd);
6104 if (repo_path == NULL) {
6105 error = got_error_from_errno("strdup");
6106 goto done;
6107 }
6108 }
6109
6110 error = got_repo_open(&repo, repo_path, NULL, pack_fds);
6111 if (error)
6112 goto done;
6113
6114 init_curses();
6115
6116 error = apply_unveil(got_repo_get_path(repo), NULL);
6117 if (error)
6118 goto done;
6119
6120 error = tog_load_refs(repo, 0);
6121 if (error)
6122 goto done;
6123
6124 if (id_str1 != NULL) {
6125 error = got_keyword_to_idstr(&keyword_idstr1, id_str1,
6126 repo, worktree);
6127 if (error != NULL)
6128 goto done;
6129 if (keyword_idstr1 != NULL)
6130 id_str1 = keyword_idstr1;
6131 }
6132 if (id_str2 != NULL) {
6133 error = got_keyword_to_idstr(&keyword_idstr2, id_str2,
6134 repo, worktree);
6135 if (error != NULL)
6136 goto done;
6137 if (keyword_idstr2 != NULL)
6138 id_str2 = keyword_idstr2;
6139 }
6140
6141 error = got_repo_match_object_id(&id1, &label1, id_str1,
6142 GOT_OBJ_TYPE_ANY, &tog_refs, repo);
6143 if (error)
6144 goto done;
6145
6146 error = got_repo_match_object_id(&id2, &label2, id_str2,
6147 GOT_OBJ_TYPE_ANY, &tog_refs, repo);
6148 if (error)
6149 goto done;
6150
6151 view = view_open(0, 0, 0, 0, TOG_VIEW_DIFF);
6152 if (view == NULL) {
6153 error = got_error_from_errno("view_open");
6154 goto done;
6155 }
6156 error = open_diff_view(view, id1, id2, label1, label2, diff_context,
6157 ignore_whitespace, force_text_diff, NULL, repo);
6158 if (error)
6159 goto done;
6160
6161 if (worktree) {
6162 error = set_tog_base_commit(repo, worktree);
6163 if (error != NULL)
6164 goto done;
6165 }
6166
6167 error = view_loop(view);
6168
6169 done:
6170 free(tog_base_commit.id);
6171 free(keyword_idstr1);
6172 free(keyword_idstr2);
6173 free(label1);
6174 free(label2);
6175 free(repo_path);
6176 free(cwd);
6177 if (repo) {
6178 const struct got_error *close_err = got_repo_close(repo);
6179 if (error == NULL)
6180 error = close_err;
6181 }
6182 if (worktree)
6183 got_worktree_close(worktree);
6184 if (pack_fds) {
6185 const struct got_error *pack_err =
6186 got_repo_pack_fds_close(pack_fds);
6187 if (error == NULL)
6188 error = pack_err;
6189 }
6190 tog_free_refs();
6191 return error;
6192 }
6193
6194 __dead static void
6195 usage_blame(void)
6196 {
6197 endwin();
6198 fprintf(stderr,
6199 "usage: %s blame [-c commit] [-r repository-path] path\n",
6200 getprogname());
6201 exit(1);
6202 }
6203
6204 struct tog_blame_line {
6205 int annotated;
6206 struct got_object_id *id;
6207 };
6208
6209 static const struct got_error *
6210 draw_blame(struct tog_view *view)
6211 {
6212 struct tog_blame_view_state *s = &view->state.blame;
6213 struct tog_blame *blame = &s->blame;
6214 regmatch_t *regmatch = &view->regmatch;
6215 const struct got_error *err;
6216 int lineno = 0, nprinted = 0;
6217 char *line = NULL;
6218 size_t linesize = 0;
6219 ssize_t linelen;
6220 wchar_t *wline;
6221 int width;
6222 struct tog_blame_line *blame_line;
6223 struct got_object_id *prev_id = NULL;
6224 char *id_str;
6225 struct tog_color *tc;
6226
6227 err = got_object_id_str(&id_str, &s->blamed_commit->id);
6228 if (err)
6229 return err;
6230
6231 rewind(blame->f);
6232 werase(view->window);
6233
6234 if (asprintf(&line, "commit %s", id_str) == -1) {
6235 err = got_error_from_errno("asprintf");
6236 free(id_str);
6237 return err;
6238 }
6239
6240 err = format_line(&wline, &width, NULL, line, 0, view->ncols, 0, 0);
6241 free(line);
6242 line = NULL;
6243 if (err)
6244 return err;
6245 if (view_needs_focus_indication(view))
6246 wstandout(view->window);
6247 tc = get_color(&s->colors, TOG_COLOR_COMMIT);
6248 if (tc)
6249 wattr_on(view->window, COLOR_PAIR(tc->colorpair), NULL);
6250 waddwstr(view->window, wline);
6251 while (width++ < view->ncols)
6252 waddch(view->window, ' ');
6253 if (tc)
6254 wattr_off(view->window, COLOR_PAIR(tc->colorpair), NULL);
6255 if (view_needs_focus_indication(view))
6256 wstandend(view->window);
6257 free(wline);
6258 wline = NULL;
6259
6260 if (view->gline > blame->nlines)
6261 view->gline = blame->nlines;
6262
6263 if (tog_io.wait_for_ui) {
6264 struct tog_blame_thread_args *bta = &s->blame.thread_args;
6265 int rc;
6266
6267 rc = pthread_cond_wait(&bta->blame_complete, &tog_mutex);
6268 if (rc)
6269 return got_error_set_errno(rc, "pthread_cond_wait");
6270 tog_io.wait_for_ui = 0;
6271 }
6272
6273 if (asprintf(&line, "[%d/%d] %s%s", view->gline ? view->gline :
6274 s->first_displayed_line - 1 + s->selected_line, blame->nlines,
6275 s->blame_complete ? "" : "annotating... ", s->path) == -1) {
6276 free(id_str);
6277 return got_error_from_errno("asprintf");
6278 }
6279 free(id_str);
6280 err = format_line(&wline, &width, NULL, line, 0, view->ncols, 0, 0);
6281 free(line);
6282 line = NULL;
6283 if (err)
6284 return err;
6285 waddwstr(view->window, wline);
6286 free(wline);
6287 wline = NULL;
6288 if (width < view->ncols - 1)
6289 waddch(view->window, '\n');
6290
6291 s->eof = 0;
6292 view->maxx = 0;
6293 while (nprinted < view->nlines - 2) {
6294 linelen = getline(&line, &linesize, blame->f);
6295 if (linelen == -1) {
6296 if (feof(blame->f)) {
6297 s->eof = 1;
6298 break;
6299 }
6300 free(line);
6301 return got_ferror(blame->f, GOT_ERR_IO);
6302 }
6303 if (++lineno < s->first_displayed_line)
6304 continue;
6305 if (view->gline && !gotoline(view, &lineno, &nprinted))
6306 continue;
6307
6308 /* Set view->maxx based on full line length. */
6309 err = format_line(&wline, &width, NULL, line, 0, INT_MAX, 9, 1);
6310 if (err) {
6311 free(line);
6312 return err;
6313 }
6314 free(wline);
6315 wline = NULL;
6316 view->maxx = MAX(view->maxx, width);
6317
6318 if (nprinted == s->selected_line - 1)
6319 wstandout(view->window);
6320
6321 if (blame->nlines > 0) {
6322 blame_line = &blame->lines[lineno - 1];
6323 if (blame_line->annotated && prev_id &&
6324 got_object_id_cmp(prev_id, blame_line->id) == 0 &&
6325 !(nprinted == s->selected_line - 1)) {
6326 waddstr(view->window, " ");
6327 } else if (blame_line->annotated) {
6328 char *id_str;
6329 err = got_object_id_str(&id_str,
6330 blame_line->id);
6331 if (err) {
6332 free(line);
6333 return err;
6334 }
6335 tc = get_color(&s->colors, TOG_COLOR_COMMIT);
6336 if (tc)
6337 wattr_on(view->window,
6338 COLOR_PAIR(tc->colorpair), NULL);
6339 wprintw(view->window, "%.8s", id_str);
6340 if (tc)
6341 wattr_off(view->window,
6342 COLOR_PAIR(tc->colorpair), NULL);
6343 free(id_str);
6344 prev_id = blame_line->id;
6345 } else {
6346 waddstr(view->window, "........");
6347 prev_id = NULL;
6348 }
6349 } else {
6350 waddstr(view->window, "........");
6351 prev_id = NULL;
6352 }
6353
6354 if (nprinted == s->selected_line - 1)
6355 wstandend(view->window);
6356 waddstr(view->window, " ");
6357
6358 if (view->ncols <= 9) {
6359 width = 9;
6360 } else if (s->first_displayed_line + nprinted ==
6361 s->matched_line &&
6362 regmatch->rm_so >= 0 && regmatch->rm_so < regmatch->rm_eo) {
6363 err = add_matched_line(&width, line, view->ncols - 9, 9,
6364 view->window, view->x, regmatch);
6365 if (err) {
6366 free(line);
6367 return err;
6368 }
6369 width += 9;
6370 } else {
6371 int skip;
6372 err = format_line(&wline, &width, &skip, line,
6373 view->x, view->ncols - 9, 9, 1);
6374 if (err) {
6375 free(line);
6376 return err;
6377 }
6378 waddwstr(view->window, &wline[skip]);
6379 width += 9;
6380 free(wline);
6381 wline = NULL;
6382 }
6383
6384 if (width <= view->ncols - 1)
6385 waddch(view->window, '\n');
6386 if (++nprinted == 1)
6387 s->first_displayed_line = lineno;
6388 }
6389 free(line);
6390 s->last_displayed_line = lineno;
6391
6392 view_border(view);
6393
6394 return NULL;
6395 }
6396
6397 static const struct got_error *
6398 blame_cb(void *arg, int nlines, int lineno,
6399 struct got_commit_object *commit, struct got_object_id *id)
6400 {
6401 const struct got_error *err = NULL;
6402 struct tog_blame_cb_args *a = arg;
6403 struct tog_blame_line *line;
6404 int errcode;
6405
6406 if (nlines != a->nlines ||
6407 (lineno != -1 && lineno < 1) || lineno > a->nlines)
6408 return got_error(GOT_ERR_RANGE);
6409
6410 errcode = pthread_mutex_lock(&tog_mutex);
6411 if (errcode)
6412 return got_error_set_errno(errcode, "pthread_mutex_lock");
6413
6414 if (*a->quit) { /* user has quit the blame view */
6415 err = got_error(GOT_ERR_ITER_COMPLETED);
6416 goto done;
6417 }
6418
6419 if (lineno == -1)
6420 goto done; /* no change in this commit */
6421
6422 line = &a->lines[lineno - 1];
6423 if (line->annotated)
6424 goto done;
6425
6426 line->id = got_object_id_dup(id);
6427 if (line->id == NULL) {
6428 err = got_error_from_errno("got_object_id_dup");
6429 goto done;
6430 }
6431 line->annotated = 1;
6432 done:
6433 errcode = pthread_mutex_unlock(&tog_mutex);
6434 if (errcode)
6435 err = got_error_set_errno(errcode, "pthread_mutex_unlock");
6436 return err;
6437 }
6438
6439 static void *
6440 blame_thread(void *arg)
6441 {
6442 const struct got_error *err, *close_err;
6443 struct tog_blame_thread_args *ta = arg;
6444 struct tog_blame_cb_args *a = ta->cb_args;
6445 int errcode, fd1 = -1, fd2 = -1;
6446 FILE *f1 = NULL, *f2 = NULL;
6447
6448 fd1 = got_opentempfd();
6449 if (fd1 == -1)
6450 return (void *)got_error_from_errno("got_opentempfd");
6451
6452 fd2 = got_opentempfd();
6453 if (fd2 == -1) {
6454 err = got_error_from_errno("got_opentempfd");
6455 goto done;
6456 }
6457
6458 f1 = got_opentemp();
6459 if (f1 == NULL) {
6460 err = (void *)got_error_from_errno("got_opentemp");
6461 goto done;
6462 }
6463 f2 = got_opentemp();
6464 if (f2 == NULL) {
6465 err = (void *)got_error_from_errno("got_opentemp");
6466 goto done;
6467 }
6468
6469 err = block_signals_used_by_main_thread();
6470 if (err)
6471 goto done;
6472
6473 err = got_blame(ta->path, a->commit_id, ta->repo,
6474 tog_diff_algo, blame_cb, ta->cb_args,
6475 ta->cancel_cb, ta->cancel_arg, fd1, fd2, f1, f2);
6476 if (err && err->code == GOT_ERR_CANCELLED)
6477 err = NULL;
6478
6479 errcode = pthread_mutex_lock(&tog_mutex);
6480 if (errcode) {
6481 err = got_error_set_errno(errcode, "pthread_mutex_lock");
6482 goto done;
6483 }
6484
6485 close_err = got_repo_close(ta->repo);
6486 if (err == NULL)
6487 err = close_err;
6488 ta->repo = NULL;
6489 *ta->complete = 1;
6490
6491 if (tog_io.wait_for_ui) {
6492 errcode = pthread_cond_signal(&ta->blame_complete);
6493 if (errcode && err == NULL)
6494 err = got_error_set_errno(errcode,
6495 "pthread_cond_signal");
6496 }
6497
6498 errcode = pthread_mutex_unlock(&tog_mutex);
6499 if (errcode && err == NULL)
6500 err = got_error_set_errno(errcode, "pthread_mutex_unlock");
6501
6502 done:
6503 if (fd1 != -1 && close(fd1) == -1 && err == NULL)
6504 err = got_error_from_errno("close");
6505 if (fd2 != -1 && close(fd2) == -1 && err == NULL)
6506 err = got_error_from_errno("close");
6507 if (f1 && fclose(f1) == EOF && err == NULL)
6508 err = got_error_from_errno("fclose");
6509 if (f2 && fclose(f2) == EOF && err == NULL)
6510 err = got_error_from_errno("fclose");
6511
6512 return (void *)err;
6513 }
6514
6515 static struct got_object_id *
6516 get_selected_commit_id(struct tog_blame_line *lines, int nlines,
6517 int first_displayed_line, int selected_line)
6518 {
6519 struct tog_blame_line *line;
6520
6521 if (nlines <= 0)
6522 return NULL;
6523
6524 line = &lines[first_displayed_line - 1 + selected_line - 1];
6525 if (!line->annotated)
6526 return NULL;
6527
6528 return line->id;
6529 }
6530
6531 static struct got_object_id *
6532 get_annotation_for_line(struct tog_blame_line *lines, int nlines,
6533 int lineno)
6534 {
6535 struct tog_blame_line *line;
6536
6537 if (nlines <= 0 || lineno >= nlines)
6538 return NULL;
6539
6540 line = &lines[lineno - 1];
6541 if (!line->annotated)
6542 return NULL;
6543
6544 return line->id;
6545 }
6546
6547 static const struct got_error *
6548 stop_blame(struct tog_blame *blame)
6549 {
6550 const struct got_error *err = NULL;
6551 int i;
6552
6553 if (blame->thread) {
6554 int errcode;
6555 errcode = pthread_mutex_unlock(&tog_mutex);
6556 if (errcode)
6557 return got_error_set_errno(errcode,
6558 "pthread_mutex_unlock");
6559 errcode = pthread_join(blame->thread, (void **)&err);
6560 if (errcode)
6561 return got_error_set_errno(errcode, "pthread_join");
6562 errcode = pthread_mutex_lock(&tog_mutex);
6563 if (errcode)
6564 return got_error_set_errno(errcode,
6565 "pthread_mutex_lock");
6566 if (err && err->code == GOT_ERR_ITER_COMPLETED)
6567 err = NULL;
6568 blame->thread = 0; //NULL;
6569 }
6570 if (blame->thread_args.repo) {
6571 const struct got_error *close_err;
6572 close_err = got_repo_close(blame->thread_args.repo);
6573 if (err == NULL)
6574 err = close_err;
6575 blame->thread_args.repo = NULL;
6576 }
6577 if (blame->f) {
6578 if (fclose(blame->f) == EOF && err == NULL)
6579 err = got_error_from_errno("fclose");
6580 blame->f = NULL;
6581 }
6582 if (blame->lines) {
6583 for (i = 0; i < blame->nlines; i++)
6584 free(blame->lines[i].id);
6585 free(blame->lines);
6586 blame->lines = NULL;
6587 }
6588 free(blame->cb_args.commit_id);
6589 blame->cb_args.commit_id = NULL;
6590 if (blame->pack_fds) {
6591 const struct got_error *pack_err =
6592 got_repo_pack_fds_close(blame->pack_fds);
6593 if (err == NULL)
6594 err = pack_err;
6595 blame->pack_fds = NULL;
6596 }
6597 free(blame->line_offsets);
6598 blame->line_offsets = NULL;
6599 return err;
6600 }
6601
6602 static const struct got_error *
6603 cancel_blame_view(void *arg)
6604 {
6605 const struct got_error *err = NULL;
6606 int *done = arg;
6607 int errcode;
6608
6609 errcode = pthread_mutex_lock(&tog_mutex);
6610 if (errcode)
6611 return got_error_set_errno(errcode,
6612 "pthread_mutex_unlock");
6613
6614 if (*done)
6615 err = got_error(GOT_ERR_CANCELLED);
6616
6617 errcode = pthread_mutex_unlock(&tog_mutex);
6618 if (errcode)
6619 return got_error_set_errno(errcode,
6620 "pthread_mutex_lock");
6621
6622 return err;
6623 }
6624
6625 static const struct got_error *
6626 run_blame(struct tog_view *view)
6627 {
6628 struct tog_blame_view_state *s = &view->state.blame;
6629 struct tog_blame *blame = &s->blame;
6630 const struct got_error *err = NULL;
6631 struct got_commit_object *commit = NULL;
6632 struct got_blob_object *blob = NULL;
6633 struct got_repository *thread_repo = NULL;
6634 struct got_object_id *obj_id = NULL;
6635 int obj_type, fd = -1;
6636 int *pack_fds = NULL;
6637
6638 err = got_object_open_as_commit(&commit, s->repo,
6639 &s->blamed_commit->id);
6640 if (err)
6641 return err;
6642
6643 fd = got_opentempfd();
6644 if (fd == -1) {
6645 err = got_error_from_errno("got_opentempfd");
6646 goto done;
6647 }
6648
6649 err = got_object_id_by_path(&obj_id, s->repo, commit, s->path);
6650 if (err)
6651 goto done;
6652
6653 err = got_object_get_type(&obj_type, s->repo, obj_id);
6654 if (err)
6655 goto done;
6656
6657 if (obj_type != GOT_OBJ_TYPE_BLOB) {
6658 err = got_error(GOT_ERR_OBJ_TYPE);
6659 goto done;
6660 }
6661
6662 err = got_object_open_as_blob(&blob, s->repo, obj_id, 8192, fd);
6663 if (err)
6664 goto done;
6665 blame->f = got_opentemp();
6666 if (blame->f == NULL) {
6667 err = got_error_from_errno("got_opentemp");
6668 goto done;
6669 }
6670 err = got_object_blob_dump_to_file(&blame->filesize, &blame->nlines,
6671 &blame->line_offsets, blame->f, blob);
6672 if (err)
6673 goto done;
6674 if (blame->nlines == 0) {
6675 s->blame_complete = 1;
6676 goto done;
6677 }
6678
6679 /* Don't include \n at EOF in the blame line count. */
6680 if (blame->line_offsets[blame->nlines - 1] == blame->filesize)
6681 blame->nlines--;
6682
6683 blame->lines = calloc(blame->nlines, sizeof(*blame->lines));
6684 if (blame->lines == NULL) {
6685 err = got_error_from_errno("calloc");
6686 goto done;
6687 }
6688
6689 err = got_repo_pack_fds_open(&pack_fds);
6690 if (err)
6691 goto done;
6692 err = got_repo_open(&thread_repo, got_repo_get_path(s->repo), NULL,
6693 pack_fds);
6694 if (err)
6695 goto done;
6696
6697 blame->pack_fds = pack_fds;
6698 blame->cb_args.view = view;
6699 blame->cb_args.lines = blame->lines;
6700 blame->cb_args.nlines = blame->nlines;
6701 blame->cb_args.commit_id = got_object_id_dup(&s->blamed_commit->id);
6702 if (blame->cb_args.commit_id == NULL) {
6703 err = got_error_from_errno("got_object_id_dup");
6704 goto done;
6705 }
6706 blame->cb_args.quit = &s->done;
6707
6708 blame->thread_args.path = s->path;
6709 blame->thread_args.repo = thread_repo;
6710 blame->thread_args.cb_args = &blame->cb_args;
6711 blame->thread_args.complete = &s->blame_complete;
6712 blame->thread_args.cancel_cb = cancel_blame_view;
6713 blame->thread_args.cancel_arg = &s->done;
6714 s->blame_complete = 0;
6715
6716 if (s->first_displayed_line + view->nlines - 1 > blame->nlines) {
6717 s->first_displayed_line = 1;
6718 s->last_displayed_line = view->nlines;
6719 s->selected_line = 1;
6720 }
6721 s->matched_line = 0;
6722
6723 done:
6724 if (commit)
6725 got_object_commit_close(commit);
6726 if (fd != -1 && close(fd) == -1 && err == NULL)
6727 err = got_error_from_errno("close");
6728 if (blob)
6729 got_object_blob_close(blob);
6730 free(obj_id);
6731 if (err)
6732 stop_blame(blame);
6733 return err;
6734 }
6735
6736 static const struct got_error *
6737 open_blame_view(struct tog_view *view, char *path,
6738 struct got_object_id *commit_id, struct got_repository *repo)
6739 {
6740 const struct got_error *err = NULL;
6741 struct tog_blame_view_state *s = &view->state.blame;
6742
6743 STAILQ_INIT(&s->blamed_commits);
6744
6745 s->path = strdup(path);
6746 if (s->path == NULL)
6747 return got_error_from_errno("strdup");
6748
6749 err = got_object_qid_alloc(&s->blamed_commit, commit_id);
6750 if (err) {
6751 free(s->path);
6752 return err;
6753 }
6754
6755 STAILQ_INSERT_HEAD(&s->blamed_commits, s->blamed_commit, entry);
6756 s->first_displayed_line = 1;
6757 s->last_displayed_line = view->nlines;
6758 s->selected_line = 1;
6759 s->blame_complete = 0;
6760 s->repo = repo;
6761 s->commit_id = commit_id;
6762 memset(&s->blame, 0, sizeof(s->blame));
6763
6764 STAILQ_INIT(&s->colors);
6765 if (has_colors() && getenv("TOG_COLORS") != NULL) {
6766 err = add_color(&s->colors, "^", TOG_COLOR_COMMIT,
6767 get_color_value("TOG_COLOR_COMMIT"));
6768 if (err)
6769 return err;
6770 }
6771
6772 view->show = show_blame_view;
6773 view->input = input_blame_view;
6774 view->reset = reset_blame_view;
6775 view->close = close_blame_view;
6776 view->search_start = search_start_blame_view;
6777 view->search_setup = search_setup_blame_view;
6778 view->search_next = search_next_view_match;
6779
6780 if (using_mock_io) {
6781 struct tog_blame_thread_args *bta = &s->blame.thread_args;
6782 int rc;
6783
6784 rc = pthread_cond_init(&bta->blame_complete, NULL);
6785 if (rc)
6786 return got_error_set_errno(rc, "pthread_cond_init");
6787 }
6788
6789 return run_blame(view);
6790 }
6791
6792 static const struct got_error *
6793 close_blame_view(struct tog_view *view)
6794 {
6795 const struct got_error *err = NULL;
6796 struct tog_blame_view_state *s = &view->state.blame;
6797
6798 if (s->blame.thread)
6799 err = stop_blame(&s->blame);
6800
6801 while (!STAILQ_EMPTY(&s->blamed_commits)) {
6802 struct got_object_qid *blamed_commit;
6803 blamed_commit = STAILQ_FIRST(&s->blamed_commits);
6804 STAILQ_REMOVE_HEAD(&s->blamed_commits, entry);
6805 got_object_qid_free(blamed_commit);
6806 }
6807
6808 if (using_mock_io) {
6809 struct tog_blame_thread_args *bta = &s->blame.thread_args;
6810 int rc;
6811
6812 rc = pthread_cond_destroy(&bta->blame_complete);
6813 if (rc && err == NULL)
6814 err = got_error_set_errno(rc, "pthread_cond_destroy");
6815 }
6816
6817 free(s->path);
6818 free_colors(&s->colors);
6819 return err;
6820 }
6821
6822 static const struct got_error *
6823 search_start_blame_view(struct tog_view *view)
6824 {
6825 struct tog_blame_view_state *s = &view->state.blame;
6826
6827 s->matched_line = 0;
6828 return NULL;
6829 }
6830
6831 static void
6832 search_setup_blame_view(struct tog_view *view, FILE **f, off_t **line_offsets,
6833 size_t *nlines, int **first, int **last, int **match, int **selected)
6834 {
6835 struct tog_blame_view_state *s = &view->state.blame;
6836
6837 *f = s->blame.f;
6838 *nlines = s->blame.nlines;
6839 *line_offsets = s->blame.line_offsets;
6840 *match = &s->matched_line;
6841 *first = &s->first_displayed_line;
6842 *last = &s->last_displayed_line;
6843 *selected = &s->selected_line;
6844 }
6845
6846 static const struct got_error *
6847 show_blame_view(struct tog_view *view)
6848 {
6849 const struct got_error *err = NULL;
6850 struct tog_blame_view_state *s = &view->state.blame;
6851 int errcode;
6852
6853 if (s->blame.thread == 0 && !s->blame_complete) {
6854 errcode = pthread_create(&s->blame.thread, NULL, blame_thread,
6855 &s->blame.thread_args);
6856 if (errcode)
6857 return got_error_set_errno(errcode, "pthread_create");
6858
6859 if (!using_mock_io)
6860 halfdelay(1); /* fast refresh while annotating */
6861 }
6862
6863 if (s->blame_complete && !using_mock_io)
6864 halfdelay(10); /* disable fast refresh */
6865
6866 err = draw_blame(view);
6867
6868 view_border(view);
6869 return err;
6870 }
6871
6872 static const struct got_error *
6873 log_annotated_line(struct tog_view **new_view, int begin_y, int begin_x,
6874 struct got_repository *repo, struct got_object_id *id)
6875 {
6876 struct tog_view *log_view;
6877 const struct got_error *err = NULL;
6878
6879 *new_view = NULL;
6880
6881 log_view = view_open(0, 0, begin_y, begin_x, TOG_VIEW_LOG);
6882 if (log_view == NULL)
6883 return got_error_from_errno("view_open");
6884
6885 err = open_log_view(log_view, id, repo, GOT_REF_HEAD, "", 0, NULL);
6886 if (err)
6887 view_close(log_view);
6888 else
6889 *new_view = log_view;
6890
6891 return err;
6892 }
6893
6894 static const struct got_error *
6895 input_blame_view(struct tog_view **new_view, struct tog_view *view, int ch)
6896 {
6897 const struct got_error *err = NULL, *thread_err = NULL;
6898 struct tog_view *diff_view;
6899 struct tog_blame_view_state *s = &view->state.blame;
6900 int eos, nscroll, begin_y = 0, begin_x = 0;
6901
6902 eos = nscroll = view->nlines - 2;
6903 if (view_is_hsplit_top(view))
6904 --eos; /* border */
6905
6906 switch (ch) {
6907 case '0':
6908 case '$':
6909 case KEY_RIGHT:
6910 case 'l':
6911 case KEY_LEFT:
6912 case 'h':
6913 horizontal_scroll_input(view, ch);
6914 break;
6915 case 'q':
6916 s->done = 1;
6917 break;
6918 case 'g':
6919 case KEY_HOME:
6920 s->selected_line = 1;
6921 s->first_displayed_line = 1;
6922 view->count = 0;
6923 break;
6924 case 'G':
6925 case KEY_END:
6926 if (s->blame.nlines < eos) {
6927 s->selected_line = s->blame.nlines;
6928 s->first_displayed_line = 1;
6929 } else {
6930 s->selected_line = eos;
6931 s->first_displayed_line = s->blame.nlines - (eos - 1);
6932 }
6933 view->count = 0;
6934 break;
6935 case 'k':
6936 case KEY_UP:
6937 case CTRL('p'):
6938 if (s->selected_line > 1)
6939 s->selected_line--;
6940 else if (s->selected_line == 1 &&
6941 s->first_displayed_line > 1)
6942 s->first_displayed_line--;
6943 else
6944 view->count = 0;
6945 break;
6946 case CTRL('u'):
6947 case 'u':
6948 nscroll /= 2;
6949 /* FALL THROUGH */
6950 case KEY_PPAGE:
6951 case CTRL('b'):
6952 case 'b':
6953 if (s->first_displayed_line == 1) {
6954 if (view->count > 1)
6955 nscroll += nscroll;
6956 s->selected_line = MAX(1, s->selected_line - nscroll);
6957 view->count = 0;
6958 break;
6959 }
6960 if (s->first_displayed_line > nscroll)
6961 s->first_displayed_line -= nscroll;
6962 else
6963 s->first_displayed_line = 1;
6964 break;
6965 case 'j':
6966 case KEY_DOWN:
6967 case CTRL('n'):
6968 if (s->selected_line < eos && s->first_displayed_line +
6969 s->selected_line <= s->blame.nlines)
6970 s->selected_line++;
6971 else if (s->first_displayed_line < s->blame.nlines - (eos - 1))
6972 s->first_displayed_line++;
6973 else
6974 view->count = 0;
6975 break;
6976 case 'c':
6977 case 'p': {
6978 struct got_object_id *id = NULL;
6979
6980 view->count = 0;
6981 id = get_selected_commit_id(s->blame.lines, s->blame.nlines,
6982 s->first_displayed_line, s->selected_line);
6983 if (id == NULL)
6984 break;
6985 if (ch == 'p') {
6986 struct got_commit_object *commit, *pcommit;
6987 struct got_object_qid *pid;
6988 struct got_object_id *blob_id = NULL;
6989 int obj_type;
6990 err = got_object_open_as_commit(&commit,
6991 s->repo, id);
6992 if (err)
6993 break;
6994 pid = STAILQ_FIRST(
6995 got_object_commit_get_parent_ids(commit));
6996 if (pid == NULL) {
6997 got_object_commit_close(commit);
6998 break;
6999 }
7000 /* Check if path history ends here. */
7001 err = got_object_open_as_commit(&pcommit,
7002 s->repo, &pid->id);
7003 if (err)
7004 break;
7005 err = got_object_id_by_path(&blob_id, s->repo,
7006 pcommit, s->path);
7007 got_object_commit_close(pcommit);
7008 if (err) {
7009 if (err->code == GOT_ERR_NO_TREE_ENTRY)
7010 err = NULL;
7011 got_object_commit_close(commit);
7012 break;
7013 }
7014 err = got_object_get_type(&obj_type, s->repo,
7015 blob_id);
7016 free(blob_id);
7017 /* Can't blame non-blob type objects. */
7018 if (obj_type != GOT_OBJ_TYPE_BLOB) {
7019 got_object_commit_close(commit);
7020 break;
7021 }
7022 err = got_object_qid_alloc(&s->blamed_commit,
7023 &pid->id);
7024 got_object_commit_close(commit);
7025 } else {
7026 if (got_object_id_cmp(id,
7027 &s->blamed_commit->id) == 0)
7028 break;
7029 err = got_object_qid_alloc(&s->blamed_commit,
7030 id);
7031 }
7032 if (err)
7033 break;
7034 s->done = 1;
7035 thread_err = stop_blame(&s->blame);
7036 s->done = 0;
7037 if (thread_err)
7038 break;
7039 STAILQ_INSERT_HEAD(&s->blamed_commits,
7040 s->blamed_commit, entry);
7041 err = run_blame(view);
7042 if (err)
7043 break;
7044 break;
7045 }
7046 case 'C': {
7047 struct got_object_qid *first;
7048
7049 view->count = 0;
7050 first = STAILQ_FIRST(&s->blamed_commits);
7051 if (!got_object_id_cmp(&first->id, s->commit_id))
7052 break;
7053 s->done = 1;
7054 thread_err = stop_blame(&s->blame);
7055 s->done = 0;
7056 if (thread_err)
7057 break;
7058 STAILQ_REMOVE_HEAD(&s->blamed_commits, entry);
7059 got_object_qid_free(s->blamed_commit);
7060 s->blamed_commit =
7061 STAILQ_FIRST(&s->blamed_commits);
7062 err = run_blame(view);
7063 if (err)
7064 break;
7065 break;
7066 }
7067 case 'L':
7068 view->count = 0;
7069 s->id_to_log = get_selected_commit_id(s->blame.lines,
7070 s->blame.nlines, s->first_displayed_line, s->selected_line);
7071 if (s->id_to_log)
7072 err = view_request_new(new_view, view, TOG_VIEW_LOG);
7073 break;
7074 case KEY_ENTER:
7075 case '\r': {
7076 struct got_object_id *id = NULL;
7077 struct got_object_qid *pid;
7078 struct got_commit_object *commit = NULL;
7079
7080 view->count = 0;
7081 id = get_selected_commit_id(s->blame.lines, s->blame.nlines,
7082 s->first_displayed_line, s->selected_line);
7083 if (id == NULL)
7084 break;
7085 err = got_object_open_as_commit(&commit, s->repo, id);
7086 if (err)
7087 break;
7088 pid = STAILQ_FIRST(got_object_commit_get_parent_ids(commit));
7089 if (*new_view) {
7090 /* traversed from diff view, release diff resources */
7091 err = close_diff_view(*new_view);
7092 if (err)
7093 break;
7094 diff_view = *new_view;
7095 } else {
7096 if (view_is_parent_view(view))
7097 view_get_split(view, &begin_y, &begin_x);
7098
7099 diff_view = view_open(0, 0, begin_y, begin_x,
7100 TOG_VIEW_DIFF);
7101 if (diff_view == NULL) {
7102 got_object_commit_close(commit);
7103 err = got_error_from_errno("view_open");
7104 break;
7105 }
7106 }
7107 err = open_diff_view(diff_view, pid ? &pid->id : NULL,
7108 id, NULL, NULL, 3, 0, 0, view, s->repo);
7109 got_object_commit_close(commit);
7110 if (err)
7111 break;
7112 s->last_diffed_line = s->first_displayed_line - 1 +
7113 s->selected_line;
7114 if (*new_view)
7115 break; /* still open from active diff view */
7116 if (view_is_parent_view(view) &&
7117 view->mode == TOG_VIEW_SPLIT_HRZN) {
7118 err = view_init_hsplit(view, begin_y);
7119 if (err)
7120 break;
7121 }
7122
7123 view->focussed = 0;
7124 diff_view->focussed = 1;
7125 diff_view->mode = view->mode;
7126 diff_view->nlines = view->lines - begin_y;
7127 if (view_is_parent_view(view)) {
7128 view_transfer_size(diff_view, view);
7129 err = view_close_child(view);
7130 if (err)
7131 break;
7132 err = view_set_child(view, diff_view);
7133 if (err)
7134 break;
7135 view->focus_child = 1;
7136 } else
7137 *new_view = diff_view;
7138 if (err)
7139 break;
7140 break;
7141 }
7142 case CTRL('d'):
7143 case 'd':
7144 nscroll /= 2;
7145 /* FALL THROUGH */
7146 case KEY_NPAGE:
7147 case CTRL('f'):
7148 case 'f':
7149 case ' ':
7150 if (s->last_displayed_line >= s->blame.nlines &&
7151 s->selected_line >= MIN(s->blame.nlines,
7152 view->nlines - 2)) {
7153 view->count = 0;
7154 break;
7155 }
7156 if (s->last_displayed_line >= s->blame.nlines &&
7157 s->selected_line < view->nlines - 2) {
7158 s->selected_line +=
7159 MIN(nscroll, s->last_displayed_line -
7160 s->first_displayed_line - s->selected_line + 1);
7161 }
7162 if (s->last_displayed_line + nscroll <= s->blame.nlines)
7163 s->first_displayed_line += nscroll;
7164 else
7165 s->first_displayed_line =
7166 s->blame.nlines - (view->nlines - 3);
7167 break;
7168 case KEY_RESIZE:
7169 if (s->selected_line > view->nlines - 2) {
7170 s->selected_line = MIN(s->blame.nlines,
7171 view->nlines - 2);
7172 }
7173 break;
7174 default:
7175 view->count = 0;
7176 break;
7177 }
7178 return thread_err ? thread_err : err;
7179 }
7180
7181 static const struct got_error *
7182 reset_blame_view(struct tog_view *view)
7183 {
7184 const struct got_error *err;
7185 struct tog_blame_view_state *s = &view->state.blame;
7186
7187 view->count = 0;
7188 s->done = 1;
7189 err = stop_blame(&s->blame);
7190 s->done = 0;
7191 if (err)
7192 return err;
7193 return run_blame(view);
7194 }
7195
7196 static const struct got_error *
7197 cmd_blame(int argc, char *argv[])
7198 {
7199 const struct got_error *error;
7200 struct got_repository *repo = NULL;
7201 struct got_worktree *worktree = NULL;
7202 char *cwd = NULL, *repo_path = NULL, *in_repo_path = NULL;
7203 char *link_target = NULL;
7204 struct got_object_id *commit_id = NULL;
7205 struct got_commit_object *commit = NULL;
7206 char *keyword_idstr = NULL, *commit_id_str = NULL;
7207 int ch;
7208 struct tog_view *view = NULL;
7209 int *pack_fds = NULL;
7210
7211 while ((ch = getopt(argc, argv, "c:r:")) != -1) {
7212 switch (ch) {
7213 case 'c':
7214 commit_id_str = optarg;
7215 break;
7216 case 'r':
7217 repo_path = realpath(optarg, NULL);
7218 if (repo_path == NULL)
7219 return got_error_from_errno2("realpath",
7220 optarg);
7221 break;
7222 default:
7223 usage_blame();
7224 /* NOTREACHED */
7225 }
7226 }
7227
7228 argc -= optind;
7229 argv += optind;
7230
7231 if (argc != 1)
7232 usage_blame();
7233
7234 error = got_repo_pack_fds_open(&pack_fds);
7235 if (error != NULL)
7236 goto done;
7237
7238 if (repo_path == NULL) {
7239 cwd = getcwd(NULL, 0);
7240 if (cwd == NULL)
7241 return got_error_from_errno("getcwd");
7242 error = got_worktree_open(&worktree, cwd, NULL);
7243 if (error && error->code != GOT_ERR_NOT_WORKTREE)
7244 goto done;
7245 if (worktree)
7246 repo_path =
7247 strdup(got_worktree_get_repo_path(worktree));
7248 else
7249 repo_path = strdup(cwd);
7250 if (repo_path == NULL) {
7251 error = got_error_from_errno("strdup");
7252 goto done;
7253 }
7254 }
7255
7256 error = got_repo_open(&repo, repo_path, NULL, pack_fds);
7257 if (error != NULL)
7258 goto done;
7259
7260 error = get_in_repo_path_from_argv0(&in_repo_path, argc, argv, repo,
7261 worktree);
7262 if (error)
7263 goto done;
7264
7265 init_curses();
7266
7267 error = apply_unveil(got_repo_get_path(repo), NULL);
7268 if (error)
7269 goto done;
7270
7271 error = tog_load_refs(repo, 0);
7272 if (error)
7273 goto done;
7274
7275 if (commit_id_str == NULL) {
7276 struct got_reference *head_ref;
7277 error = got_ref_open(&head_ref, repo, worktree ?
7278 got_worktree_get_head_ref_name(worktree) : GOT_REF_HEAD, 0);
7279 if (error != NULL)
7280 goto done;
7281 error = got_ref_resolve(&commit_id, repo, head_ref);
7282 got_ref_close(head_ref);
7283 } else {
7284 error = got_keyword_to_idstr(&keyword_idstr, commit_id_str,
7285 repo, worktree);
7286 if (error != NULL)
7287 goto done;
7288 if (keyword_idstr != NULL)
7289 commit_id_str = keyword_idstr;
7290
7291 error = got_repo_match_object_id(&commit_id, NULL,
7292 commit_id_str, GOT_OBJ_TYPE_COMMIT, &tog_refs, repo);
7293 }
7294 if (error != NULL)
7295 goto done;
7296
7297 error = got_object_open_as_commit(&commit, repo, commit_id);
7298 if (error)
7299 goto done;
7300
7301 error = got_object_resolve_symlinks(&link_target, in_repo_path,
7302 commit, repo);
7303 if (error)
7304 goto done;
7305
7306 view = view_open(0, 0, 0, 0, TOG_VIEW_BLAME);
7307 if (view == NULL) {
7308 error = got_error_from_errno("view_open");
7309 goto done;
7310 }
7311 error = open_blame_view(view, link_target ? link_target : in_repo_path,
7312 commit_id, repo);
7313 if (error != NULL) {
7314 if (view->close == NULL)
7315 close_blame_view(view);
7316 view_close(view);
7317 goto done;
7318 }
7319
7320 if (worktree) {
7321 error = set_tog_base_commit(repo, worktree);
7322 if (error != NULL)
7323 goto done;
7324
7325 /* Release work tree lock. */
7326 got_worktree_close(worktree);
7327 worktree = NULL;
7328 }
7329
7330 error = view_loop(view);
7331
7332 done:
7333 free(tog_base_commit.id);
7334 free(repo_path);
7335 free(in_repo_path);
7336 free(link_target);
7337 free(cwd);
7338 free(commit_id);
7339 free(keyword_idstr);
7340 if (commit)
7341 got_object_commit_close(commit);
7342 if (worktree)
7343 got_worktree_close(worktree);
7344 if (repo) {
7345 const struct got_error *close_err = got_repo_close(repo);
7346 if (error == NULL)
7347 error = close_err;
7348 }
7349 if (pack_fds) {
7350 const struct got_error *pack_err =
7351 got_repo_pack_fds_close(pack_fds);
7352 if (error == NULL)
7353 error = pack_err;
7354 }
7355 tog_free_refs();
7356 return error;
7357 }
7358
7359 static const struct got_error *
7360 draw_tree_entries(struct tog_view *view, const char *parent_path)
7361 {
7362 struct tog_tree_view_state *s = &view->state.tree;
7363 const struct got_error *err = NULL;
7364 struct got_tree_entry *te;
7365 wchar_t *wline;
7366 char *index = NULL;
7367 struct tog_color *tc;
7368 int width, n, nentries, scrollx, i = 1;
7369 int limit = view->nlines;
7370
7371 s->ndisplayed = 0;
7372 if (view_is_hsplit_top(view))
7373 --limit; /* border */
7374
7375 werase(view->window);
7376
7377 if (limit == 0)
7378 return NULL;
7379
7380 err = format_line(&wline, &width, NULL, s->tree_label, 0, view->ncols,
7381 0, 0);
7382 if (err)
7383 return err;
7384 if (view_needs_focus_indication(view))
7385 wstandout(view->window);
7386 tc = get_color(&s->colors, TOG_COLOR_COMMIT);
7387 if (tc)
7388 wattr_on(view->window, COLOR_PAIR(tc->colorpair), NULL);
7389 waddwstr(view->window, wline);
7390 free(wline);
7391 wline = NULL;
7392 while (width++ < view->ncols)
7393 waddch(view->window, ' ');
7394 if (tc)
7395 wattr_off(view->window, COLOR_PAIR(tc->colorpair), NULL);
7396 if (view_needs_focus_indication(view))
7397 wstandend(view->window);
7398 if (--limit <= 0)
7399 return NULL;
7400
7401 i += s->selected;
7402 if (s->first_displayed_entry) {
7403 i += got_tree_entry_get_index(s->first_displayed_entry);
7404 if (s->tree != s->root)
7405 ++i; /* account for ".." entry */
7406 }
7407 nentries = got_object_tree_get_nentries(s->tree);
7408 if (asprintf(&index, "[%d/%d] %s",
7409 i, nentries + (s->tree == s->root ? 0 : 1), parent_path) == -1)
7410 return got_error_from_errno("asprintf");
7411 err = format_line(&wline, &width, NULL, index, 0, view->ncols, 0, 0);
7412 free(index);
7413 if (err)
7414 return err;
7415 waddwstr(view->window, wline);
7416 free(wline);
7417 wline = NULL;
7418 if (width < view->ncols - 1)
7419 waddch(view->window, '\n');
7420 if (--limit <= 0)
7421 return NULL;
7422 waddch(view->window, '\n');
7423 if (--limit <= 0)
7424 return NULL;
7425
7426 if (s->first_displayed_entry == NULL) {
7427 te = got_object_tree_get_first_entry(s->tree);
7428 if (s->selected == 0) {
7429 if (view->focussed)
7430 wstandout(view->window);
7431 s->selected_entry = NULL;
7432 }
7433 waddstr(view->window, " ..\n"); /* parent directory */
7434 if (s->selected == 0 && view->focussed)
7435 wstandend(view->window);
7436 s->ndisplayed++;
7437 if (--limit <= 0)
7438 return NULL;
7439 n = 1;
7440 } else {
7441 n = 0;
7442 te = s->first_displayed_entry;
7443 }
7444
7445 view->maxx = 0;
7446 for (i = got_tree_entry_get_index(te); i < nentries; i++) {
7447 char *line = NULL, *id_str = NULL, *link_target = NULL;
7448 const char *modestr = "";
7449 mode_t mode;
7450
7451 te = got_object_tree_get_entry(s->tree, i);
7452 mode = got_tree_entry_get_mode(te);
7453
7454 if (s->show_ids) {
7455 err = got_object_id_str(&id_str,
7456 got_tree_entry_get_id(te));
7457 if (err)
7458 return got_error_from_errno(
7459 "got_object_id_str");
7460 }
7461 if (got_object_tree_entry_is_submodule(te))
7462 modestr = "$";
7463 else if (S_ISLNK(mode)) {
7464 int i;
7465
7466 err = got_tree_entry_get_symlink_target(&link_target,
7467 te, s->repo);
7468 if (err) {
7469 free(id_str);
7470 return err;
7471 }
7472 for (i = 0; link_target[i] != '\0'; i++) {
7473 if (!isprint((unsigned char)link_target[i]))
7474 link_target[i] = '?';
7475 }
7476 modestr = "@";
7477 }
7478 else if (S_ISDIR(mode))
7479 modestr = "/";
7480 else if (mode & S_IXUSR)
7481 modestr = "*";
7482 if (asprintf(&line, "%s %s%s%s%s", id_str ? id_str : "",
7483 got_tree_entry_get_name(te), modestr,
7484 link_target ? " -> ": "",
7485 link_target ? link_target : "") == -1) {
7486 free(id_str);
7487 free(link_target);
7488 return got_error_from_errno("asprintf");
7489 }
7490 free(id_str);
7491 free(link_target);
7492
7493 /* use full line width to determine view->maxx */
7494 err = format_line(&wline, &width, NULL, line, 0, INT_MAX, 0, 0);
7495 if (err) {
7496 free(line);
7497 break;
7498 }
7499 view->maxx = MAX(view->maxx, width);
7500 free(wline);
7501 wline = NULL;
7502
7503 err = format_line(&wline, &width, &scrollx, line, view->x,
7504 view->ncols, 0, 0);
7505 if (err) {
7506 free(line);
7507 break;
7508 }
7509 if (n == s->selected) {
7510 if (view->focussed)
7511 wstandout(view->window);
7512 s->selected_entry = te;
7513 }
7514 tc = match_color(&s->colors, line);
7515 if (tc)
7516 wattr_on(view->window,
7517 COLOR_PAIR(tc->colorpair), NULL);
7518 waddwstr(view->window, &wline[scrollx]);
7519 if (tc)
7520 wattr_off(view->window,
7521 COLOR_PAIR(tc->colorpair), NULL);
7522 if (width < view->ncols)
7523 waddch(view->window, '\n');
7524 if (n == s->selected && view->focussed)
7525 wstandend(view->window);
7526 free(line);
7527 free(wline);
7528 wline = NULL;
7529 n++;
7530 s->ndisplayed++;
7531 s->last_displayed_entry = te;
7532 if (--limit <= 0)
7533 break;
7534 }
7535
7536 return err;
7537 }
7538
7539 static void
7540 tree_scroll_up(struct tog_tree_view_state *s, int maxscroll)
7541 {
7542 struct got_tree_entry *te;
7543 int isroot = s->tree == s->root;
7544 int i = 0;
7545
7546 if (s->first_displayed_entry == NULL)
7547 return;
7548
7549 te = got_tree_entry_get_prev(s->tree, s->first_displayed_entry);
7550 while (i++ < maxscroll) {
7551 if (te == NULL) {
7552 if (!isroot)
7553 s->first_displayed_entry = NULL;
7554 break;
7555 }
7556 s->first_displayed_entry = te;
7557 te = got_tree_entry_get_prev(s->tree, te);
7558 }
7559 }
7560
7561 static const struct got_error *
7562 tree_scroll_down(struct tog_view *view, int maxscroll)
7563 {
7564 struct tog_tree_view_state *s = &view->state.tree;
7565 struct got_tree_entry *next, *last;
7566 int n = 0;
7567
7568 if (s->first_displayed_entry)
7569 next = got_tree_entry_get_next(s->tree,
7570 s->first_displayed_entry);
7571 else
7572 next = got_object_tree_get_first_entry(s->tree);
7573
7574 last = s->last_displayed_entry;
7575 while (next && n++ < maxscroll) {
7576 if (last) {
7577 s->last_displayed_entry = last;
7578 last = got_tree_entry_get_next(s->tree, last);
7579 }
7580 if (last || (view->mode == TOG_VIEW_SPLIT_HRZN && next)) {
7581 s->first_displayed_entry = next;
7582 next = got_tree_entry_get_next(s->tree, next);
7583 }
7584 }
7585
7586 return NULL;
7587 }
7588
7589 static const struct got_error *
7590 tree_entry_path(char **path, struct tog_parent_trees *parents,
7591 struct got_tree_entry *te)
7592 {
7593 const struct got_error *err = NULL;
7594 struct tog_parent_tree *pt;
7595 size_t len = 2; /* for leading slash and NUL */
7596
7597 TAILQ_FOREACH(pt, parents, entry)
7598 len += strlen(got_tree_entry_get_name(pt->selected_entry))
7599 + 1 /* slash */;
7600 if (te)
7601 len += strlen(got_tree_entry_get_name(te));
7602
7603 *path = calloc(1, len);
7604 if (path == NULL)
7605 return got_error_from_errno("calloc");
7606
7607 (*path)[0] = '/';
7608 pt = TAILQ_LAST(parents, tog_parent_trees);
7609 while (pt) {
7610 const char *name = got_tree_entry_get_name(pt->selected_entry);
7611 if (strlcat(*path, name, len) >= len) {
7612 err = got_error(GOT_ERR_NO_SPACE);
7613 goto done;
7614 }
7615 if (strlcat(*path, "/", len) >= len) {
7616 err = got_error(GOT_ERR_NO_SPACE);
7617 goto done;
7618 }
7619 pt = TAILQ_PREV(pt, tog_parent_trees, entry);
7620 }
7621 if (te) {
7622 if (strlcat(*path, got_tree_entry_get_name(te), len) >= len) {
7623 err = got_error(GOT_ERR_NO_SPACE);
7624 goto done;
7625 }
7626 }
7627 done:
7628 if (err) {
7629 free(*path);
7630 *path = NULL;
7631 }
7632 return err;
7633 }
7634
7635 static const struct got_error *
7636 blame_tree_entry(struct tog_view **new_view, int begin_y, int begin_x,
7637 struct got_tree_entry *te, struct tog_parent_trees *parents,
7638 struct got_object_id *commit_id, struct got_repository *repo)
7639 {
7640 const struct got_error *err = NULL;
7641 char *path;
7642 struct tog_view *blame_view;
7643
7644 *new_view = NULL;
7645
7646 err = tree_entry_path(&path, parents, te);
7647 if (err)
7648 return err;
7649
7650 blame_view = view_open(0, 0, begin_y, begin_x, TOG_VIEW_BLAME);
7651 if (blame_view == NULL) {
7652 err = got_error_from_errno("view_open");
7653 goto done;
7654 }
7655
7656 err = open_blame_view(blame_view, path, commit_id, repo);
7657 if (err) {
7658 if (err->code == GOT_ERR_CANCELLED)
7659 err = NULL;
7660 view_close(blame_view);
7661 } else
7662 *new_view = blame_view;
7663 done:
7664 free(path);
7665 return err;
7666 }
7667
7668 static const struct got_error *
7669 log_selected_tree_entry(struct tog_view **new_view, int begin_y, int begin_x,
7670 struct tog_tree_view_state *s)
7671 {
7672 struct tog_view *log_view;
7673 const struct got_error *err = NULL;
7674 char *path;
7675
7676 *new_view = NULL;
7677
7678 log_view = view_open(0, 0, begin_y, begin_x, TOG_VIEW_LOG);
7679 if (log_view == NULL)
7680 return got_error_from_errno("view_open");
7681
7682 err = tree_entry_path(&path, &s->parents, s->selected_entry);
7683 if (err)
7684 return err;
7685
7686 err = open_log_view(log_view, s->commit_id, s->repo, s->head_ref_name,
7687 path, 0, NULL);
7688 if (err)
7689 view_close(log_view);
7690 else
7691 *new_view = log_view;
7692 free(path);
7693 return err;
7694 }
7695
7696 static const struct got_error *
7697 open_tree_view(struct tog_view *view, struct got_object_id *commit_id,
7698 const char *head_ref_name, struct got_repository *repo)
7699 {
7700 const struct got_error *err = NULL;
7701 char *commit_id_str = NULL;
7702 struct tog_tree_view_state *s = &view->state.tree;
7703 struct got_commit_object *commit = NULL;
7704
7705 TAILQ_INIT(&s->parents);
7706 STAILQ_INIT(&s->colors);
7707
7708 s->commit_id = got_object_id_dup(commit_id);
7709 if (s->commit_id == NULL) {
7710 err = got_error_from_errno("got_object_id_dup");
7711 goto done;
7712 }
7713
7714 err = got_object_open_as_commit(&commit, repo, commit_id);
7715 if (err)
7716 goto done;
7717
7718 /*
7719 * The root is opened here and will be closed when the view is closed.
7720 * Any visited subtrees and their path-wise parents are opened and
7721 * closed on demand.
7722 */
7723 err = got_object_open_as_tree(&s->root, repo,
7724 got_object_commit_get_tree_id(commit));
7725 if (err)
7726 goto done;
7727 s->tree = s->root;
7728
7729 err = got_object_id_str(&commit_id_str, commit_id);
7730 if (err != NULL)
7731 goto done;
7732
7733 if (asprintf(&s->tree_label, "commit %s", commit_id_str) == -1) {
7734 err = got_error_from_errno("asprintf");
7735 goto done;
7736 }
7737
7738 s->first_displayed_entry = got_object_tree_get_entry(s->tree, 0);
7739 s->selected_entry = got_object_tree_get_entry(s->tree, 0);
7740 if (head_ref_name) {
7741 s->head_ref_name = strdup(head_ref_name);
7742 if (s->head_ref_name == NULL) {
7743 err = got_error_from_errno("strdup");
7744 goto done;
7745 }
7746 }
7747 s->repo = repo;
7748
7749 if (has_colors() && getenv("TOG_COLORS") != NULL) {
7750 err = add_color(&s->colors, "\\$$",
7751 TOG_COLOR_TREE_SUBMODULE,
7752 get_color_value("TOG_COLOR_TREE_SUBMODULE"));
7753 if (err)
7754 goto done;
7755 err = add_color(&s->colors, "@$", TOG_COLOR_TREE_SYMLINK,
7756 get_color_value("TOG_COLOR_TREE_SYMLINK"));
7757 if (err)
7758 goto done;
7759 err = add_color(&s->colors, "/$",
7760 TOG_COLOR_TREE_DIRECTORY,
7761 get_color_value("TOG_COLOR_TREE_DIRECTORY"));
7762 if (err)
7763 goto done;
7764
7765 err = add_color(&s->colors, "\\*$",
7766 TOG_COLOR_TREE_EXECUTABLE,
7767 get_color_value("TOG_COLOR_TREE_EXECUTABLE"));
7768 if (err)
7769 goto done;
7770
7771 err = add_color(&s->colors, "^$", TOG_COLOR_COMMIT,
7772 get_color_value("TOG_COLOR_COMMIT"));
7773 if (err)
7774 goto done;
7775 }
7776
7777 view->show = show_tree_view;
7778 view->input = input_tree_view;
7779 view->close = close_tree_view;
7780 view->search_start = search_start_tree_view;
7781 view->search_next = search_next_tree_view;
7782 done:
7783 free(commit_id_str);
7784 if (commit)
7785 got_object_commit_close(commit);
7786 if (err) {
7787 if (view->close == NULL)
7788 close_tree_view(view);
7789 view_close(view);
7790 }
7791 return err;
7792 }
7793
7794 static const struct got_error *
7795 close_tree_view(struct tog_view *view)
7796 {
7797 struct tog_tree_view_state *s = &view->state.tree;
7798
7799 free_colors(&s->colors);
7800 free(s->tree_label);
7801 s->tree_label = NULL;
7802 free(s->commit_id);
7803 s->commit_id = NULL;
7804 free(s->head_ref_name);
7805 s->head_ref_name = NULL;
7806 while (!TAILQ_EMPTY(&s->parents)) {
7807 struct tog_parent_tree *parent;
7808 parent = TAILQ_FIRST(&s->parents);
7809 TAILQ_REMOVE(&s->parents, parent, entry);
7810 if (parent->tree != s->root)
7811 got_object_tree_close(parent->tree);
7812 free(parent);
7813
7814 }
7815 if (s->tree != NULL && s->tree != s->root)
7816 got_object_tree_close(s->tree);
7817 if (s->root)
7818 got_object_tree_close(s->root);
7819 return NULL;
7820 }
7821
7822 static const struct got_error *
7823 search_start_tree_view(struct tog_view *view)
7824 {
7825 struct tog_tree_view_state *s = &view->state.tree;
7826
7827 s->matched_entry = NULL;
7828 return NULL;
7829 }
7830
7831 static int
7832 match_tree_entry(struct got_tree_entry *te, regex_t *regex)
7833 {
7834 regmatch_t regmatch;
7835
7836 return regexec(regex, got_tree_entry_get_name(te), 1, &regmatch,
7837 0) == 0;
7838 }
7839
7840 static const struct got_error *
7841 search_next_tree_view(struct tog_view *view)
7842 {
7843 struct tog_tree_view_state *s = &view->state.tree;
7844 struct got_tree_entry *te = NULL;
7845
7846 if (!view->searching) {
7847 view->search_next_done = TOG_SEARCH_HAVE_MORE;
7848 return NULL;
7849 }
7850
7851 if (s->matched_entry) {
7852 if (view->searching == TOG_SEARCH_FORWARD) {
7853 if (s->selected_entry)
7854 te = got_tree_entry_get_next(s->tree,
7855 s->selected_entry);
7856 else
7857 te = got_object_tree_get_first_entry(s->tree);
7858 } else {
7859 if (s->selected_entry == NULL)
7860 te = got_object_tree_get_last_entry(s->tree);
7861 else
7862 te = got_tree_entry_get_prev(s->tree,
7863 s->selected_entry);
7864 }
7865 } else {
7866 if (s->selected_entry)
7867 te = s->selected_entry;
7868 else if (view->searching == TOG_SEARCH_FORWARD)
7869 te = got_object_tree_get_first_entry(s->tree);
7870 else
7871 te = got_object_tree_get_last_entry(s->tree);
7872 }
7873
7874 while (1) {
7875 if (te == NULL) {
7876 if (s->matched_entry == NULL) {
7877 view->search_next_done = TOG_SEARCH_HAVE_MORE;
7878 return NULL;
7879 }
7880 if (view->searching == TOG_SEARCH_FORWARD)
7881 te = got_object_tree_get_first_entry(s->tree);
7882 else
7883 te = got_object_tree_get_last_entry(s->tree);
7884 }
7885
7886 if (match_tree_entry(te, &view->regex)) {
7887 view->search_next_done = TOG_SEARCH_HAVE_MORE;
7888 s->matched_entry = te;
7889 break;
7890 }
7891
7892 if (view->searching == TOG_SEARCH_FORWARD)
7893 te = got_tree_entry_get_next(s->tree, te);
7894 else
7895 te = got_tree_entry_get_prev(s->tree, te);
7896 }
7897
7898 if (s->matched_entry) {
7899 s->first_displayed_entry = s->matched_entry;
7900 s->selected = 0;
7901 }
7902
7903 return NULL;
7904 }
7905
7906 static const struct got_error *
7907 show_tree_view(struct tog_view *view)
7908 {
7909 const struct got_error *err = NULL;
7910 struct tog_tree_view_state *s = &view->state.tree;
7911 char *parent_path;
7912
7913 err = tree_entry_path(&parent_path, &s->parents, NULL);
7914 if (err)
7915 return err;
7916
7917 err = draw_tree_entries(view, parent_path);
7918 free(parent_path);
7919
7920 view_border(view);
7921 return err;
7922 }
7923
7924 static const struct got_error *
7925 tree_goto_line(struct tog_view *view, int nlines)
7926 {
7927 const struct got_error *err = NULL;
7928 struct tog_tree_view_state *s = &view->state.tree;
7929 struct got_tree_entry **fte, **lte, **ste;
7930 int g, last, first = 1, i = 1;
7931 int root = s->tree == s->root;
7932 int off = root ? 1 : 2;
7933
7934 g = view->gline;
7935 view->gline = 0;
7936
7937 if (g == 0)
7938 g = 1;
7939 else if (g > got_object_tree_get_nentries(s->tree))
7940 g = got_object_tree_get_nentries(s->tree) + (root ? 0 : 1);
7941
7942 fte = &s->first_displayed_entry;
7943 lte = &s->last_displayed_entry;
7944 ste = &s->selected_entry;
7945
7946 if (*fte != NULL) {
7947 first = got_tree_entry_get_index(*fte);
7948 first += off; /* account for ".." */
7949 }
7950 last = got_tree_entry_get_index(*lte);
7951 last += off;
7952
7953 if (g >= first && g <= last && g - first < nlines) {
7954 s->selected = g - first;
7955 return NULL; /* gline is on the current page */
7956 }
7957
7958 if (*ste != NULL) {
7959 i = got_tree_entry_get_index(*ste);
7960 i += off;
7961 }
7962
7963 if (i < g) {
7964 err = tree_scroll_down(view, g - i);
7965 if (err)
7966 return err;
7967 if (got_tree_entry_get_index(*lte) >=
7968 got_object_tree_get_nentries(s->tree) - 1 &&
7969 first + s->selected < g &&
7970 s->selected < s->ndisplayed - 1) {
7971 first = got_tree_entry_get_index(*fte);
7972 first += off;
7973 s->selected = g - first;
7974 }
7975 } else if (i > g)
7976 tree_scroll_up(s, i - g);
7977
7978 if (g < nlines &&
7979 (*fte == NULL || (root && !got_tree_entry_get_index(*fte))))
7980 s->selected = g - 1;
7981
7982 return NULL;
7983 }
7984
7985 static const struct got_error *
7986 input_tree_view(struct tog_view **new_view, struct tog_view *view, int ch)
7987 {
7988 const struct got_error *err = NULL;
7989 struct tog_tree_view_state *s = &view->state.tree;
7990 struct got_tree_entry *te;
7991 int n, nscroll = view->nlines - 3;
7992
7993 if (view->gline)
7994 return tree_goto_line(view, nscroll);
7995
7996 switch (ch) {
7997 case '0':
7998 case '$':
7999 case KEY_RIGHT:
8000 case 'l':
8001 case KEY_LEFT:
8002 case 'h':
8003 horizontal_scroll_input(view, ch);
8004 break;
8005 case 'i':
8006 s->show_ids = !s->show_ids;
8007 view->count = 0;
8008 break;
8009 case 'L':
8010 view->count = 0;
8011 if (!s->selected_entry)
8012 break;
8013 err = view_request_new(new_view, view, TOG_VIEW_LOG);
8014 break;
8015 case 'R':
8016 view->count = 0;
8017 err = view_request_new(new_view, view, TOG_VIEW_REF);
8018 break;
8019 case 'g':
8020 case '=':
8021 case KEY_HOME:
8022 s->selected = 0;
8023 view->count = 0;
8024 if (s->tree == s->root)
8025 s->first_displayed_entry =
8026 got_object_tree_get_first_entry(s->tree);
8027 else
8028 s->first_displayed_entry = NULL;
8029 break;
8030 case 'G':
8031 case '*':
8032 case KEY_END: {
8033 int eos = view->nlines - 3;
8034
8035 if (view->mode == TOG_VIEW_SPLIT_HRZN)
8036 --eos; /* border */
8037 s->selected = 0;
8038 view->count = 0;
8039 te = got_object_tree_get_last_entry(s->tree);
8040 for (n = 0; n < eos; n++) {
8041 if (te == NULL) {
8042 if (s->tree != s->root) {
8043 s->first_displayed_entry = NULL;
8044 n++;
8045 }
8046 break;
8047 }
8048 s->first_displayed_entry = te;
8049 te = got_tree_entry_get_prev(s->tree, te);
8050 }
8051 if (n > 0)
8052 s->selected = n - 1;
8053 break;
8054 }
8055 case 'k':
8056 case KEY_UP:
8057 case CTRL('p'):
8058 if (s->selected > 0) {
8059 s->selected--;
8060 break;
8061 }
8062 tree_scroll_up(s, 1);
8063 if (s->selected_entry == NULL ||
8064 (s->tree == s->root && s->selected_entry ==
8065 got_object_tree_get_first_entry(s->tree)))
8066 view->count = 0;
8067 break;
8068 case CTRL('u'):
8069 case 'u':
8070 nscroll /= 2;
8071 /* FALL THROUGH */
8072 case KEY_PPAGE:
8073 case CTRL('b'):
8074 case 'b':
8075 if (s->tree == s->root) {
8076 if (got_object_tree_get_first_entry(s->tree) ==
8077 s->first_displayed_entry)
8078 s->selected -= MIN(s->selected, nscroll);
8079 } else {
8080 if (s->first_displayed_entry == NULL)
8081 s->selected -= MIN(s->selected, nscroll);
8082 }
8083 tree_scroll_up(s, MAX(0, nscroll));
8084 if (s->selected_entry == NULL ||
8085 (s->tree == s->root && s->selected_entry ==
8086 got_object_tree_get_first_entry(s->tree)))
8087 view->count = 0;
8088 break;
8089 case 'j':
8090 case KEY_DOWN:
8091 case CTRL('n'):
8092 if (s->selected < s->ndisplayed - 1) {
8093 s->selected++;
8094 break;
8095 }
8096 if (got_tree_entry_get_next(s->tree, s->last_displayed_entry)
8097 == NULL) {
8098 /* can't scroll any further */
8099 view->count = 0;
8100 break;
8101 }
8102 tree_scroll_down(view, 1);
8103 break;
8104 case CTRL('d'):
8105 case 'd':
8106 nscroll /= 2;
8107 /* FALL THROUGH */
8108 case KEY_NPAGE:
8109 case CTRL('f'):
8110 case 'f':
8111 case ' ':
8112 if (got_tree_entry_get_next(s->tree, s->last_displayed_entry)
8113 == NULL) {
8114 /* can't scroll any further; move cursor down */
8115 if (s->selected < s->ndisplayed - 1)
8116 s->selected += MIN(nscroll,
8117 s->ndisplayed - s->selected - 1);
8118 else
8119 view->count = 0;
8120 break;
8121 }
8122 tree_scroll_down(view, nscroll);
8123 break;
8124 case KEY_ENTER:
8125 case '\r':
8126 case KEY_BACKSPACE:
8127 if (s->selected_entry == NULL || ch == KEY_BACKSPACE) {
8128 struct tog_parent_tree *parent;
8129 /* user selected '..' */
8130 if (s->tree == s->root) {
8131 view->count = 0;
8132 break;
8133 }
8134 parent = TAILQ_FIRST(&s->parents);
8135 TAILQ_REMOVE(&s->parents, parent,
8136 entry);
8137 got_object_tree_close(s->tree);
8138 s->tree = parent->tree;
8139 s->first_displayed_entry =
8140 parent->first_displayed_entry;
8141 s->selected_entry =
8142 parent->selected_entry;
8143 s->selected = parent->selected;
8144 if (s->selected > view->nlines - 3) {
8145 err = offset_selection_down(view);
8146 if (err)
8147 break;
8148 }
8149 free(parent);
8150 } else if (S_ISDIR(got_tree_entry_get_mode(
8151 s->selected_entry))) {
8152 struct got_tree_object *subtree;
8153 view->count = 0;
8154 err = got_object_open_as_tree(&subtree, s->repo,
8155 got_tree_entry_get_id(s->selected_entry));
8156 if (err)
8157 break;
8158 err = tree_view_visit_subtree(s, subtree);
8159 if (err) {
8160 got_object_tree_close(subtree);
8161 break;
8162 }
8163 } else if (S_ISREG(got_tree_entry_get_mode(s->selected_entry)))
8164 err = view_request_new(new_view, view, TOG_VIEW_BLAME);
8165 break;
8166 case KEY_RESIZE:
8167 if (view->nlines >= 4 && s->selected >= view->nlines - 3)
8168 s->selected = view->nlines - 4;
8169 view->count = 0;
8170 break;
8171 default:
8172 view->count = 0;
8173 break;
8174 }
8175
8176 return err;
8177 }
8178
8179 __dead static void
8180 usage_tree(void)
8181 {
8182 endwin();
8183 fprintf(stderr,
8184 "usage: %s tree [-c commit] [-r repository-path] [path]\n",
8185 getprogname());
8186 exit(1);
8187 }
8188
8189 static const struct got_error *
8190 cmd_tree(int argc, char *argv[])
8191 {
8192 const struct got_error *error;
8193 struct got_repository *repo = NULL;
8194 struct got_worktree *worktree = NULL;
8195 char *cwd = NULL, *repo_path = NULL, *in_repo_path = NULL;
8196 struct got_object_id *commit_id = NULL;
8197 struct got_commit_object *commit = NULL;
8198 const char *commit_id_arg = NULL;
8199 char *keyword_idstr = NULL, *label = NULL;
8200 struct got_reference *ref = NULL;
8201 const char *head_ref_name = NULL;
8202 int ch;
8203 struct tog_view *view;
8204 int *pack_fds = NULL;
8205
8206 while ((ch = getopt(argc, argv, "c:r:")) != -1) {
8207 switch (ch) {
8208 case 'c':
8209 commit_id_arg = optarg;
8210 break;
8211 case 'r':
8212 repo_path = realpath(optarg, NULL);
8213 if (repo_path == NULL)
8214 return got_error_from_errno2("realpath",
8215 optarg);
8216 break;
8217 default:
8218 usage_tree();
8219 /* NOTREACHED */
8220 }
8221 }
8222
8223 argc -= optind;
8224 argv += optind;
8225
8226 if (argc > 1)
8227 usage_tree();
8228
8229 error = got_repo_pack_fds_open(&pack_fds);
8230 if (error != NULL)
8231 goto done;
8232
8233 if (repo_path == NULL) {
8234 cwd = getcwd(NULL, 0);
8235 if (cwd == NULL)
8236 return got_error_from_errno("getcwd");
8237 error = got_worktree_open(&worktree, cwd, NULL);
8238 if (error && error->code != GOT_ERR_NOT_WORKTREE)
8239 goto done;
8240 if (worktree)
8241 repo_path =
8242 strdup(got_worktree_get_repo_path(worktree));
8243 else
8244 repo_path = strdup(cwd);
8245 if (repo_path == NULL) {
8246 error = got_error_from_errno("strdup");
8247 goto done;
8248 }
8249 }
8250
8251 error = got_repo_open(&repo, repo_path, NULL, pack_fds);
8252 if (error != NULL)
8253 goto done;
8254
8255 error = get_in_repo_path_from_argv0(&in_repo_path, argc, argv,
8256 repo, worktree);
8257 if (error)
8258 goto done;
8259
8260 init_curses();
8261
8262 error = apply_unveil(got_repo_get_path(repo), NULL);
8263 if (error)
8264 goto done;
8265
8266 error = tog_load_refs(repo, 0);
8267 if (error)
8268 goto done;
8269
8270 if (commit_id_arg == NULL) {
8271 error = got_repo_match_object_id(&commit_id, &label,
8272 worktree ? got_worktree_get_head_ref_name(worktree) :
8273 GOT_REF_HEAD, GOT_OBJ_TYPE_COMMIT, &tog_refs, repo);
8274 if (error)
8275 goto done;
8276 head_ref_name = label;
8277 } else {
8278 error = got_keyword_to_idstr(&keyword_idstr, commit_id_arg,
8279 repo, worktree);
8280 if (error != NULL)
8281 goto done;
8282 if (keyword_idstr != NULL)
8283 commit_id_arg = keyword_idstr;
8284
8285 error = got_ref_open(&ref, repo, commit_id_arg, 0);
8286 if (error == NULL)
8287 head_ref_name = got_ref_get_name(ref);
8288 else if (error->code != GOT_ERR_NOT_REF)
8289 goto done;
8290 error = got_repo_match_object_id(&commit_id, NULL,
8291 commit_id_arg, GOT_OBJ_TYPE_COMMIT, &tog_refs, repo);
8292 if (error)
8293 goto done;
8294 }
8295
8296 error = got_object_open_as_commit(&commit, repo, commit_id);
8297 if (error)
8298 goto done;
8299
8300 view = view_open(0, 0, 0, 0, TOG_VIEW_TREE);
8301 if (view == NULL) {
8302 error = got_error_from_errno("view_open");
8303 goto done;
8304 }
8305 error = open_tree_view(view, commit_id, head_ref_name, repo);
8306 if (error)
8307 goto done;
8308 if (!got_path_is_root_dir(in_repo_path)) {
8309 error = tree_view_walk_path(&view->state.tree, commit,
8310 in_repo_path);
8311 if (error)
8312 goto done;
8313 }
8314
8315 if (worktree) {
8316 error = set_tog_base_commit(repo, worktree);
8317 if (error != NULL)
8318 goto done;
8319
8320 /* Release work tree lock. */
8321 got_worktree_close(worktree);
8322 worktree = NULL;
8323 }
8324
8325 error = view_loop(view);
8326
8327 done:
8328 free(tog_base_commit.id);
8329 free(keyword_idstr);
8330 free(repo_path);
8331 free(cwd);
8332 free(commit_id);
8333 free(label);
8334 if (ref)
8335 got_ref_close(ref);
8336 if (worktree != NULL)
8337 got_worktree_close(worktree);
8338 if (repo) {
8339 const struct got_error *close_err = got_repo_close(repo);
8340 if (error == NULL)
8341 error = close_err;
8342 }
8343 if (pack_fds) {
8344 const struct got_error *pack_err =
8345 got_repo_pack_fds_close(pack_fds);
8346 if (error == NULL)
8347 error = pack_err;
8348 }
8349 tog_free_refs();
8350 return error;
8351 }
8352
8353 static const struct got_error *
8354 ref_view_load_refs(struct tog_ref_view_state *s)
8355 {
8356 struct got_reflist_entry *sre;
8357 struct tog_reflist_entry *re;
8358
8359 s->nrefs = 0;
8360 TAILQ_FOREACH(sre, &tog_refs, entry) {
8361 if (strncmp(got_ref_get_name(sre->ref),
8362 "refs/got/", 9) == 0 &&
8363 strncmp(got_ref_get_name(sre->ref),
8364 "refs/got/backup/", 16) != 0)
8365 continue;
8366
8367 re = malloc(sizeof(*re));
8368 if (re == NULL)
8369 return got_error_from_errno("malloc");
8370
8371 re->ref = got_ref_dup(sre->ref);
8372 if (re->ref == NULL)
8373 return got_error_from_errno("got_ref_dup");
8374 re->idx = s->nrefs++;
8375 TAILQ_INSERT_TAIL(&s->refs, re, entry);
8376 }
8377
8378 s->first_displayed_entry = TAILQ_FIRST(&s->refs);
8379 return NULL;
8380 }
8381
8382 static void
8383 ref_view_free_refs(struct tog_ref_view_state *s)
8384 {
8385 struct tog_reflist_entry *re;
8386
8387 while (!TAILQ_EMPTY(&s->refs)) {
8388 re = TAILQ_FIRST(&s->refs);
8389 TAILQ_REMOVE(&s->refs, re, entry);
8390 got_ref_close(re->ref);
8391 free(re);
8392 }
8393 }
8394
8395 static const struct got_error *
8396 open_ref_view(struct tog_view *view, struct got_repository *repo)
8397 {
8398 const struct got_error *err = NULL;
8399 struct tog_ref_view_state *s = &view->state.ref;
8400
8401 s->selected_entry = 0;
8402 s->repo = repo;
8403
8404 TAILQ_INIT(&s->refs);
8405 STAILQ_INIT(&s->colors);
8406
8407 err = ref_view_load_refs(s);
8408 if (err)
8409 goto done;
8410
8411 if (has_colors() && getenv("TOG_COLORS") != NULL) {
8412 err = add_color(&s->colors, "^refs/heads/",
8413 TOG_COLOR_REFS_HEADS,
8414 get_color_value("TOG_COLOR_REFS_HEADS"));
8415 if (err)
8416 goto done;
8417
8418 err = add_color(&s->colors, "^refs/tags/",
8419 TOG_COLOR_REFS_TAGS,
8420 get_color_value("TOG_COLOR_REFS_TAGS"));
8421 if (err)
8422 goto done;
8423
8424 err = add_color(&s->colors, "^refs/remotes/",
8425 TOG_COLOR_REFS_REMOTES,
8426 get_color_value("TOG_COLOR_REFS_REMOTES"));
8427 if (err)
8428 goto done;
8429
8430 err = add_color(&s->colors, "^refs/got/backup/",
8431 TOG_COLOR_REFS_BACKUP,
8432 get_color_value("TOG_COLOR_REFS_BACKUP"));
8433 if (err)
8434 goto done;
8435 }
8436
8437 view->show = show_ref_view;
8438 view->input = input_ref_view;
8439 view->close = close_ref_view;
8440 view->search_start = search_start_ref_view;
8441 view->search_next = search_next_ref_view;
8442 done:
8443 if (err) {
8444 if (view->close == NULL)
8445 close_ref_view(view);
8446 view_close(view);
8447 }
8448 return err;
8449 }
8450
8451 static const struct got_error *
8452 close_ref_view(struct tog_view *view)
8453 {
8454 struct tog_ref_view_state *s = &view->state.ref;
8455
8456 ref_view_free_refs(s);
8457 free_colors(&s->colors);
8458
8459 return NULL;
8460 }
8461
8462 static const struct got_error *
8463 resolve_reflist_entry(struct got_object_id **commit_id,
8464 struct tog_reflist_entry *re, struct got_repository *repo)
8465 {
8466 const struct got_error *err = NULL;
8467 struct got_object_id *obj_id;
8468 struct got_tag_object *tag = NULL;
8469 int obj_type;
8470
8471 *commit_id = NULL;
8472
8473 err = got_ref_resolve(&obj_id, repo, re->ref);
8474 if (err)
8475 return err;
8476
8477 err = got_object_get_type(&obj_type, repo, obj_id);
8478 if (err)
8479 goto done;
8480
8481 switch (obj_type) {
8482 case GOT_OBJ_TYPE_COMMIT:
8483 *commit_id = obj_id;
8484 break;
8485 case GOT_OBJ_TYPE_TAG:
8486 err = got_object_open_as_tag(&tag, repo, obj_id);
8487 if (err)
8488 goto done;
8489 free(obj_id);
8490 err = got_object_get_type(&obj_type, repo,
8491 got_object_tag_get_object_id(tag));
8492 if (err)
8493 goto done;
8494 if (obj_type != GOT_OBJ_TYPE_COMMIT) {
8495 err = got_error(GOT_ERR_OBJ_TYPE);
8496 goto done;
8497 }
8498 *commit_id = got_object_id_dup(
8499 got_object_tag_get_object_id(tag));
8500 if (*commit_id == NULL) {
8501 err = got_error_from_errno("got_object_id_dup");
8502 goto done;
8503 }
8504 break;
8505 default:
8506 err = got_error(GOT_ERR_OBJ_TYPE);
8507 break;
8508 }
8509
8510 done:
8511 if (tag)
8512 got_object_tag_close(tag);
8513 if (err) {
8514 free(*commit_id);
8515 *commit_id = NULL;
8516 }
8517 return err;
8518 }
8519
8520 static const struct got_error *
8521 log_ref_entry(struct tog_view **new_view, int begin_y, int begin_x,
8522 struct tog_reflist_entry *re, struct got_repository *repo)
8523 {
8524 struct tog_view *log_view;
8525 const struct got_error *err = NULL;
8526 struct got_object_id *commit_id = NULL;
8527
8528 *new_view = NULL;
8529
8530 err = resolve_reflist_entry(&commit_id, re, repo);
8531 if (err) {
8532 if (err->code != GOT_ERR_OBJ_TYPE)
8533 return err;
8534 else
8535 return NULL;
8536 }
8537
8538 log_view = view_open(0, 0, begin_y, begin_x, TOG_VIEW_LOG);
8539 if (log_view == NULL) {
8540 err = got_error_from_errno("view_open");
8541 goto done;
8542 }
8543
8544 err = open_log_view(log_view, commit_id, repo,
8545 got_ref_get_name(re->ref), "", 0, NULL);
8546 done:
8547 if (err)
8548 view_close(log_view);
8549 else
8550 *new_view = log_view;
8551 free(commit_id);
8552 return err;
8553 }
8554
8555 static void
8556 ref_scroll_up(struct tog_ref_view_state *s, int maxscroll)
8557 {
8558 struct tog_reflist_entry *re;
8559 int i = 0;
8560
8561 if (s->first_displayed_entry == TAILQ_FIRST(&s->refs))
8562 return;
8563
8564 re = TAILQ_PREV(s->first_displayed_entry, tog_reflist_head, entry);
8565 while (i++ < maxscroll) {
8566 if (re == NULL)
8567 break;
8568 s->first_displayed_entry = re;
8569 re = TAILQ_PREV(re, tog_reflist_head, entry);
8570 }
8571 }
8572
8573 static const struct got_error *
8574 ref_scroll_down(struct tog_view *view, int maxscroll)
8575 {
8576 struct tog_ref_view_state *s = &view->state.ref;
8577 struct tog_reflist_entry *next, *last;
8578 int n = 0;
8579
8580 if (s->first_displayed_entry)
8581 next = TAILQ_NEXT(s->first_displayed_entry, entry);
8582 else
8583 next = TAILQ_FIRST(&s->refs);
8584
8585 last = s->last_displayed_entry;
8586 while (next && n++ < maxscroll) {
8587 if (last) {
8588 s->last_displayed_entry = last;
8589 last = TAILQ_NEXT(last, entry);
8590 }
8591 if (last || (view->mode == TOG_VIEW_SPLIT_HRZN)) {
8592 s->first_displayed_entry = next;
8593 next = TAILQ_NEXT(next, entry);
8594 }
8595 }
8596
8597 return NULL;
8598 }
8599
8600 static const struct got_error *
8601 search_start_ref_view(struct tog_view *view)
8602 {
8603 struct tog_ref_view_state *s = &view->state.ref;
8604
8605 s->matched_entry = NULL;
8606 return NULL;
8607 }
8608
8609 static int
8610 match_reflist_entry(struct tog_reflist_entry *re, regex_t *regex)
8611 {
8612 regmatch_t regmatch;
8613
8614 return regexec(regex, got_ref_get_name(re->ref), 1, &regmatch,
8615 0) == 0;
8616 }
8617
8618 static const struct got_error *
8619 search_next_ref_view(struct tog_view *view)
8620 {
8621 struct tog_ref_view_state *s = &view->state.ref;
8622 struct tog_reflist_entry *re = NULL;
8623
8624 if (!view->searching) {
8625 view->search_next_done = TOG_SEARCH_HAVE_MORE;
8626 return NULL;
8627 }
8628
8629 if (s->matched_entry) {
8630 if (view->searching == TOG_SEARCH_FORWARD) {
8631 if (s->selected_entry)
8632 re = TAILQ_NEXT(s->selected_entry, entry);
8633 else
8634 re = TAILQ_PREV(s->selected_entry,
8635 tog_reflist_head, entry);
8636 } else {
8637 if (s->selected_entry == NULL)
8638 re = TAILQ_LAST(&s->refs, tog_reflist_head);
8639 else
8640 re = TAILQ_PREV(s->selected_entry,
8641 tog_reflist_head, entry);
8642 }
8643 } else {
8644 if (s->selected_entry)
8645 re = s->selected_entry;
8646 else if (view->searching == TOG_SEARCH_FORWARD)
8647 re = TAILQ_FIRST(&s->refs);
8648 else
8649 re = TAILQ_LAST(&s->refs, tog_reflist_head);
8650 }
8651
8652 while (1) {
8653 if (re == NULL) {
8654 if (s->matched_entry == NULL) {
8655 view->search_next_done = TOG_SEARCH_HAVE_MORE;
8656 return NULL;
8657 }
8658 if (view->searching == TOG_SEARCH_FORWARD)
8659 re = TAILQ_FIRST(&s->refs);
8660 else
8661 re = TAILQ_LAST(&s->refs, tog_reflist_head);
8662 }
8663
8664 if (match_reflist_entry(re, &view->regex)) {
8665 view->search_next_done = TOG_SEARCH_HAVE_MORE;
8666 s->matched_entry = re;
8667 break;
8668 }
8669
8670 if (view->searching == TOG_SEARCH_FORWARD)
8671 re = TAILQ_NEXT(re, entry);
8672 else
8673 re = TAILQ_PREV(re, tog_reflist_head, entry);
8674 }
8675
8676 if (s->matched_entry) {
8677 s->first_displayed_entry = s->matched_entry;
8678 s->selected = 0;
8679 }
8680
8681 return NULL;
8682 }
8683
8684 static const struct got_error *
8685 show_ref_view(struct tog_view *view)
8686 {
8687 const struct got_error *err = NULL;
8688 struct tog_ref_view_state *s = &view->state.ref;
8689 struct tog_reflist_entry *re;
8690 char *line = NULL;
8691 wchar_t *wline;
8692 struct tog_color *tc;
8693 int width, n, scrollx;
8694 int limit = view->nlines;
8695
8696 werase(view->window);
8697
8698 s->ndisplayed = 0;
8699 if (view_is_hsplit_top(view))
8700 --limit; /* border */
8701
8702 if (limit == 0)
8703 return NULL;
8704
8705 re = s->first_displayed_entry;
8706
8707 if (asprintf(&line, "references [%d/%d]", re->idx + s->selected + 1,
8708 s->nrefs) == -1)
8709 return got_error_from_errno("asprintf");
8710
8711 err = format_line(&wline, &width, NULL, line, 0, view->ncols, 0, 0);
8712 if (err) {
8713 free(line);
8714 return err;
8715 }
8716 if (view_needs_focus_indication(view))
8717 wstandout(view->window);
8718 waddwstr(view->window, wline);
8719 while (width++ < view->ncols)
8720 waddch(view->window, ' ');
8721 if (view_needs_focus_indication(view))
8722 wstandend(view->window);
8723 free(wline);
8724 wline = NULL;
8725 free(line);
8726 line = NULL;
8727 if (--limit <= 0)
8728 return NULL;
8729
8730 n = 0;
8731 view->maxx = 0;
8732 while (re && limit > 0) {
8733 char *line = NULL;
8734 char ymd[13]; /* YYYY-MM-DD + " " + NUL */
8735
8736 if (s->show_date) {
8737 struct got_commit_object *ci;
8738 struct got_tag_object *tag;
8739 struct got_object_id *id;
8740 struct tm tm;
8741 time_t t;
8742
8743 err = got_ref_resolve(&id, s->repo, re->ref);
8744 if (err)
8745 return err;
8746 err = got_object_open_as_tag(&tag, s->repo, id);
8747 if (err) {
8748 if (err->code != GOT_ERR_OBJ_TYPE) {
8749 free(id);
8750 return err;
8751 }
8752 err = got_object_open_as_commit(&ci, s->repo,
8753 id);
8754 if (err) {
8755 free(id);
8756 return err;
8757 }
8758 t = got_object_commit_get_committer_time(ci);
8759 got_object_commit_close(ci);
8760 } else {
8761 t = got_object_tag_get_tagger_time(tag);
8762 got_object_tag_close(tag);
8763 }
8764 free(id);
8765 if (gmtime_r(&t, &tm) == NULL)
8766 return got_error_from_errno("gmtime_r");
8767 if (strftime(ymd, sizeof(ymd), "%G-%m-%d ", &tm) == 0)
8768 return got_error(GOT_ERR_NO_SPACE);
8769 }
8770 if (got_ref_is_symbolic(re->ref)) {
8771 if (asprintf(&line, "%s%s -> %s", s->show_date ?
8772 ymd : "", got_ref_get_name(re->ref),
8773 got_ref_get_symref_target(re->ref)) == -1)
8774 return got_error_from_errno("asprintf");
8775 } else if (s->show_ids) {
8776 struct got_object_id *id;
8777 char *id_str;
8778 err = got_ref_resolve(&id, s->repo, re->ref);
8779 if (err)
8780 return err;
8781 err = got_object_id_str(&id_str, id);
8782 if (err) {
8783 free(id);
8784 return err;
8785 }
8786 if (asprintf(&line, "%s%s: %s", s->show_date ? ymd : "",
8787 got_ref_get_name(re->ref), id_str) == -1) {
8788 err = got_error_from_errno("asprintf");
8789 free(id);
8790 free(id_str);
8791 return err;
8792 }
8793 free(id);
8794 free(id_str);
8795 } else if (asprintf(&line, "%s%s", s->show_date ? ymd : "",
8796 got_ref_get_name(re->ref)) == -1)
8797 return got_error_from_errno("asprintf");
8798
8799 /* use full line width to determine view->maxx */
8800 err = format_line(&wline, &width, NULL, line, 0, INT_MAX, 0, 0);
8801 if (err) {
8802 free(line);
8803 return err;
8804 }
8805 view->maxx = MAX(view->maxx, width);
8806 free(wline);
8807 wline = NULL;
8808
8809 err = format_line(&wline, &width, &scrollx, line, view->x,
8810 view->ncols, 0, 0);
8811 if (err) {
8812 free(line);
8813 return err;
8814 }
8815 if (n == s->selected) {
8816 if (view->focussed)
8817 wstandout(view->window);
8818 s->selected_entry = re;
8819 }
8820 tc = match_color(&s->colors, got_ref_get_name(re->ref));
8821 if (tc)
8822 wattr_on(view->window,
8823 COLOR_PAIR(tc->colorpair), NULL);
8824 waddwstr(view->window, &wline[scrollx]);
8825 if (tc)
8826 wattr_off(view->window,
8827 COLOR_PAIR(tc->colorpair), NULL);
8828 if (width < view->ncols)
8829 waddch(view->window, '\n');
8830 if (n == s->selected && view->focussed)
8831 wstandend(view->window);
8832 free(line);
8833 free(wline);
8834 wline = NULL;
8835 n++;
8836 s->ndisplayed++;
8837 s->last_displayed_entry = re;
8838
8839 limit--;
8840 re = TAILQ_NEXT(re, entry);
8841 }
8842
8843 view_border(view);
8844 return err;
8845 }
8846
8847 static const struct got_error *
8848 browse_ref_tree(struct tog_view **new_view, int begin_y, int begin_x,
8849 struct tog_reflist_entry *re, struct got_repository *repo)
8850 {
8851 const struct got_error *err = NULL;
8852 struct got_object_id *commit_id = NULL;
8853 struct tog_view *tree_view;
8854
8855 *new_view = NULL;
8856
8857 err = resolve_reflist_entry(&commit_id, re, repo);
8858 if (err) {
8859 if (err->code != GOT_ERR_OBJ_TYPE)
8860 return err;
8861 else
8862 return NULL;
8863 }
8864
8865
8866 tree_view = view_open(0, 0, begin_y, begin_x, TOG_VIEW_TREE);
8867 if (tree_view == NULL) {
8868 err = got_error_from_errno("view_open");
8869 goto done;
8870 }
8871
8872 err = open_tree_view(tree_view, commit_id,
8873 got_ref_get_name(re->ref), repo);
8874 if (err)
8875 goto done;
8876
8877 *new_view = tree_view;
8878 done:
8879 free(commit_id);
8880 return err;
8881 }
8882
8883 static const struct got_error *
8884 ref_goto_line(struct tog_view *view, int nlines)
8885 {
8886 const struct got_error *err = NULL;
8887 struct tog_ref_view_state *s = &view->state.ref;
8888 int g, idx = s->selected_entry->idx;
8889
8890 g = view->gline;
8891 view->gline = 0;
8892
8893 if (g == 0)
8894 g = 1;
8895 else if (g > s->nrefs)
8896 g = s->nrefs;
8897
8898 if (g >= s->first_displayed_entry->idx + 1 &&
8899 g <= s->last_displayed_entry->idx + 1 &&
8900 g - s->first_displayed_entry->idx - 1 < nlines) {
8901 s->selected = g - s->first_displayed_entry->idx - 1;
8902 return NULL;
8903 }
8904
8905 if (idx + 1 < g) {
8906 err = ref_scroll_down(view, g - idx - 1);
8907 if (err)
8908 return err;
8909 if (TAILQ_NEXT(s->last_displayed_entry, entry) == NULL &&
8910 s->first_displayed_entry->idx + s->selected < g &&
8911 s->selected < s->ndisplayed - 1)
8912 s->selected = g - s->first_displayed_entry->idx - 1;
8913 } else if (idx + 1 > g)
8914 ref_scroll_up(s, idx - g + 1);
8915
8916 if (g < nlines && s->first_displayed_entry->idx == 0)
8917 s->selected = g - 1;
8918
8919 return NULL;
8920
8921 }
8922
8923 static const struct got_error *
8924 input_ref_view(struct tog_view **new_view, struct tog_view *view, int ch)
8925 {
8926 const struct got_error *err = NULL;
8927 struct tog_ref_view_state *s = &view->state.ref;
8928 struct tog_reflist_entry *re;
8929 int n, nscroll = view->nlines - 1;
8930
8931 if (view->gline)
8932 return ref_goto_line(view, nscroll);
8933
8934 switch (ch) {
8935 case '0':
8936 case '$':
8937 case KEY_RIGHT:
8938 case 'l':
8939 case KEY_LEFT:
8940 case 'h':
8941 horizontal_scroll_input(view, ch);
8942 break;
8943 case 'i':
8944 s->show_ids = !s->show_ids;
8945 view->count = 0;
8946 break;
8947 case 'm':
8948 s->show_date = !s->show_date;
8949 view->count = 0;
8950 break;
8951 case 'o':
8952 s->sort_by_date = !s->sort_by_date;
8953 view->action = s->sort_by_date ? "sort by date" : "sort by name";
8954 view->count = 0;
8955 err = got_reflist_sort(&tog_refs, s->sort_by_date ?
8956 got_ref_cmp_by_commit_timestamp_descending :
8957 tog_ref_cmp_by_name, s->repo);
8958 if (err)
8959 break;
8960 got_reflist_object_id_map_free(tog_refs_idmap);
8961 err = got_reflist_object_id_map_create(&tog_refs_idmap,
8962 &tog_refs, s->repo);
8963 if (err)
8964 break;
8965 ref_view_free_refs(s);
8966 err = ref_view_load_refs(s);
8967 break;
8968 case KEY_ENTER:
8969 case '\r':
8970 view->count = 0;
8971 if (!s->selected_entry)
8972 break;
8973 err = view_request_new(new_view, view, TOG_VIEW_LOG);
8974 break;
8975 case 'T':
8976 view->count = 0;
8977 if (!s->selected_entry)
8978 break;
8979 err = view_request_new(new_view, view, TOG_VIEW_TREE);
8980 break;
8981 case 'g':
8982 case '=':
8983 case KEY_HOME:
8984 s->selected = 0;
8985 view->count = 0;
8986 s->first_displayed_entry = TAILQ_FIRST(&s->refs);
8987 break;
8988 case 'G':
8989 case '*':
8990 case KEY_END: {
8991 int eos = view->nlines - 1;
8992
8993 if (view->mode == TOG_VIEW_SPLIT_HRZN)
8994 --eos; /* border */
8995 s->selected = 0;
8996 view->count = 0;
8997 re = TAILQ_LAST(&s->refs, tog_reflist_head);
8998 for (n = 0; n < eos; n++) {
8999 if (re == NULL)
9000 break;
9001 s->first_displayed_entry = re;
9002 re = TAILQ_PREV(re, tog_reflist_head, entry);
9003 }
9004 if (n > 0)
9005 s->selected = n - 1;
9006 break;
9007 }
9008 case 'k':
9009 case KEY_UP:
9010 case CTRL('p'):
9011 if (s->selected > 0) {
9012 s->selected--;
9013 break;
9014 }
9015 ref_scroll_up(s, 1);
9016 if (s->selected_entry == TAILQ_FIRST(&s->refs))
9017 view->count = 0;
9018 break;
9019 case CTRL('u'):
9020 case 'u':
9021 nscroll /= 2;
9022 /* FALL THROUGH */
9023 case KEY_PPAGE:
9024 case CTRL('b'):
9025 case 'b':
9026 if (s->first_displayed_entry == TAILQ_FIRST(&s->refs))
9027 s->selected -= MIN(nscroll, s->selected);
9028 ref_scroll_up(s, MAX(0, nscroll));
9029 if (s->selected_entry == TAILQ_FIRST(&s->refs))
9030 view->count = 0;
9031 break;
9032 case 'j':
9033 case KEY_DOWN:
9034 case CTRL('n'):
9035 if (s->selected < s->ndisplayed - 1) {
9036 s->selected++;
9037 break;
9038 }
9039 if (TAILQ_NEXT(s->last_displayed_entry, entry) == NULL) {
9040 /* can't scroll any further */
9041 view->count = 0;
9042 break;
9043 }
9044 ref_scroll_down(view, 1);
9045 break;
9046 case CTRL('d'):
9047 case 'd':
9048 nscroll /= 2;
9049 /* FALL THROUGH */
9050 case KEY_NPAGE:
9051 case CTRL('f'):
9052 case 'f':
9053 case ' ':
9054 if (TAILQ_NEXT(s->last_displayed_entry, entry) == NULL) {
9055 /* can't scroll any further; move cursor down */
9056 if (s->selected < s->ndisplayed - 1)
9057 s->selected += MIN(nscroll,
9058 s->ndisplayed - s->selected - 1);
9059 if (view->count > 1 && s->selected < s->ndisplayed - 1)
9060 s->selected += s->ndisplayed - s->selected - 1;
9061 view->count = 0;
9062 break;
9063 }
9064 ref_scroll_down(view, nscroll);
9065 break;
9066 case CTRL('l'):
9067 view->count = 0;
9068 tog_free_refs();
9069 err = tog_load_refs(s->repo, s->sort_by_date);
9070 if (err)
9071 break;
9072 ref_view_free_refs(s);
9073 err = ref_view_load_refs(s);
9074 break;
9075 case KEY_RESIZE:
9076 if (view->nlines >= 2 && s->selected >= view->nlines - 1)
9077 s->selected = view->nlines - 2;
9078 break;
9079 default:
9080 view->count = 0;
9081 break;
9082 }
9083
9084 return err;
9085 }
9086
9087 __dead static void
9088 usage_ref(void)
9089 {
9090 endwin();
9091 fprintf(stderr, "usage: %s ref [-r repository-path]\n",
9092 getprogname());
9093 exit(1);
9094 }
9095
9096 static const struct got_error *
9097 cmd_ref(int argc, char *argv[])
9098 {
9099 const struct got_error *error;
9100 struct got_repository *repo = NULL;
9101 struct got_worktree *worktree = NULL;
9102 char *cwd = NULL, *repo_path = NULL;
9103 int ch;
9104 struct tog_view *view;
9105 int *pack_fds = NULL;
9106
9107 while ((ch = getopt(argc, argv, "r:")) != -1) {
9108 switch (ch) {
9109 case 'r':
9110 repo_path = realpath(optarg, NULL);
9111 if (repo_path == NULL)
9112 return got_error_from_errno2("realpath",
9113 optarg);
9114 break;
9115 default:
9116 usage_ref();
9117 /* NOTREACHED */
9118 }
9119 }
9120
9121 argc -= optind;
9122 argv += optind;
9123
9124 if (argc > 1)
9125 usage_ref();
9126
9127 error = got_repo_pack_fds_open(&pack_fds);
9128 if (error != NULL)
9129 goto done;
9130
9131 if (repo_path == NULL) {
9132 cwd = getcwd(NULL, 0);
9133 if (cwd == NULL)
9134 return got_error_from_errno("getcwd");
9135 error = got_worktree_open(&worktree, cwd, NULL);
9136 if (error && error->code != GOT_ERR_NOT_WORKTREE)
9137 goto done;
9138 if (worktree)
9139 repo_path =
9140 strdup(got_worktree_get_repo_path(worktree));
9141 else
9142 repo_path = strdup(cwd);
9143 if (repo_path == NULL) {
9144 error = got_error_from_errno("strdup");
9145 goto done;
9146 }
9147 }
9148
9149 error = got_repo_open(&repo, repo_path, NULL, pack_fds);
9150 if (error != NULL)
9151 goto done;
9152
9153 init_curses();
9154
9155 error = apply_unveil(got_repo_get_path(repo), NULL);
9156 if (error)
9157 goto done;
9158
9159 error = tog_load_refs(repo, 0);
9160 if (error)
9161 goto done;
9162
9163 view = view_open(0, 0, 0, 0, TOG_VIEW_REF);
9164 if (view == NULL) {
9165 error = got_error_from_errno("view_open");
9166 goto done;
9167 }
9168
9169 error = open_ref_view(view, repo);
9170 if (error)
9171 goto done;
9172
9173 if (worktree) {
9174 error = set_tog_base_commit(repo, worktree);
9175 if (error != NULL)
9176 goto done;
9177
9178 /* Release work tree lock. */
9179 got_worktree_close(worktree);
9180 worktree = NULL;
9181 }
9182
9183 error = view_loop(view);
9184
9185 done:
9186 free(tog_base_commit.id);
9187 free(repo_path);
9188 free(cwd);
9189 if (worktree != NULL)
9190 got_worktree_close(worktree);
9191 if (repo) {
9192 const struct got_error *close_err = got_repo_close(repo);
9193 if (close_err)
9194 error = close_err;
9195 }
9196 if (pack_fds) {
9197 const struct got_error *pack_err =
9198 got_repo_pack_fds_close(pack_fds);
9199 if (error == NULL)
9200 error = pack_err;
9201 }
9202 tog_free_refs();
9203 return error;
9204 }
9205
9206 static const struct got_error*
9207 win_draw_center(WINDOW *win, size_t y, size_t x, size_t maxx, int focus,
9208 const char *str)
9209 {
9210 size_t len;
9211
9212 if (win == NULL)
9213 win = stdscr;
9214
9215 len = strlen(str);
9216 x = x ? x : maxx > len ? (maxx - len) / 2 : 0;
9217
9218 if (focus)
9219 wstandout(win);
9220 if (mvwprintw(win, y, x, "%s", str) == ERR)
9221 return got_error_msg(GOT_ERR_RANGE, "mvwprintw");
9222 if (focus)
9223 wstandend(win);
9224
9225 return NULL;
9226 }
9227
9228 static const struct got_error *
9229 add_line_offset(off_t **line_offsets, size_t *nlines, off_t off)
9230 {
9231 off_t *p;
9232
9233 p = reallocarray(*line_offsets, *nlines + 1, sizeof(off_t));
9234 if (p == NULL) {
9235 free(*line_offsets);
9236 *line_offsets = NULL;
9237 return got_error_from_errno("reallocarray");
9238 }
9239
9240 *line_offsets = p;
9241 (*line_offsets)[*nlines] = off;
9242 ++(*nlines);
9243 return NULL;
9244 }
9245
9246 static const struct got_error *
9247 max_key_str(int *ret, const struct tog_key_map *km, size_t n)
9248 {
9249 *ret = 0;
9250
9251 for (;n > 0; --n, ++km) {
9252 char *t0, *t, *k;
9253 size_t len = 1;
9254
9255 if (km->keys == NULL)
9256 continue;
9257
9258 t = t0 = strdup(km->keys);
9259 if (t0 == NULL)
9260 return got_error_from_errno("strdup");
9261
9262 len += strlen(t);
9263 while ((k = strsep(&t, " ")) != NULL)
9264 len += strlen(k) > 1 ? 2 : 0;
9265 free(t0);
9266 *ret = MAX(*ret, len);
9267 }
9268
9269 return NULL;
9270 }
9271
9272 /*
9273 * Write keymap section headers, keys, and key info in km to f.
9274 * Save line offset to *off. If terminal has UTF8 encoding enabled,
9275 * wrap control and symbolic keys in guillemets, else use <>.
9276 */
9277 static const struct got_error *
9278 format_help_line(off_t *off, FILE *f, const struct tog_key_map *km, int width)
9279 {
9280 int n, len = width;
9281
9282 if (km->keys) {
9283 static const char *u8_glyph[] = {
9284 "\xe2\x80\xb9", /* U+2039 (utf8 <) */
9285 "\xe2\x80\xba" /* U+203A (utf8 >) */
9286 };
9287 char *t0, *t, *k;
9288 int cs, s, first = 1;
9289
9290 cs = got_locale_is_utf8();
9291
9292 t = t0 = strdup(km->keys);
9293 if (t0 == NULL)
9294 return got_error_from_errno("strdup");
9295
9296 len = strlen(km->keys);
9297 while ((k = strsep(&t, " ")) != NULL) {
9298 s = strlen(k) > 1; /* control or symbolic key */
9299 n = fprintf(f, "%s%s%s%s%s", first ? " " : "",
9300 cs && s ? u8_glyph[0] : s ? "<" : "", k,
9301 cs && s ? u8_glyph[1] : s ? ">" : "", t ? " " : "");
9302 if (n < 0) {
9303 free(t0);
9304 return got_error_from_errno("fprintf");
9305 }
9306 first = 0;
9307 len += s ? 2 : 0;
9308 *off += n;
9309 }
9310 free(t0);
9311 }
9312 n = fprintf(f, "%*s%s\n", width - len, width - len ? " " : "", km->info);
9313 if (n < 0)
9314 return got_error_from_errno("fprintf");
9315 *off += n;
9316
9317 return NULL;
9318 }
9319
9320 static const struct got_error *
9321 format_help(struct tog_help_view_state *s)
9322 {
9323 const struct got_error *err = NULL;
9324 off_t off = 0;
9325 int i, max, n, show = s->all;
9326 static const struct tog_key_map km[] = {
9327 #define KEYMAP_(info, type) { NULL, (info), type }
9328 #define KEY_(keys, info) { (keys), (info), TOG_KEYMAP_KEYS }
9329 GENERATE_HELP
9330 #undef KEYMAP_
9331 #undef KEY_
9332 };
9333
9334 err = add_line_offset(&s->line_offsets, &s->nlines, 0);
9335 if (err)
9336 return err;
9337
9338 n = nitems(km);
9339 err = max_key_str(&max, km, n);
9340 if (err)
9341 return err;
9342
9343 for (i = 0; i < n; ++i) {
9344 if (km[i].keys == NULL) {
9345 show = s->all;
9346 if (km[i].type == TOG_KEYMAP_GLOBAL ||
9347 km[i].type == s->type || s->all)
9348 show = 1;
9349 }
9350 if (show) {
9351 err = format_help_line(&off, s->f, &km[i], max);
9352 if (err)
9353 return err;
9354 err = add_line_offset(&s->line_offsets, &s->nlines, off);
9355 if (err)
9356 return err;
9357 }
9358 }
9359 fputc('\n', s->f);
9360 ++off;
9361 err = add_line_offset(&s->line_offsets, &s->nlines, off);
9362 return err;
9363 }
9364
9365 static const struct got_error *
9366 create_help(struct tog_help_view_state *s)
9367 {
9368 FILE *f;
9369 const struct got_error *err;
9370
9371 free(s->line_offsets);
9372 s->line_offsets = NULL;
9373 s->nlines = 0;
9374
9375 f = got_opentemp();
9376 if (f == NULL)
9377 return got_error_from_errno("got_opentemp");
9378 s->f = f;
9379
9380 err = format_help(s);
9381 if (err)
9382 return err;
9383
9384 if (s->f && fflush(s->f) != 0)
9385 return got_error_from_errno("fflush");
9386
9387 return NULL;
9388 }
9389
9390 static const struct got_error *
9391 search_start_help_view(struct tog_view *view)
9392 {
9393 view->state.help.matched_line = 0;
9394 return NULL;
9395 }
9396
9397 static void
9398 search_setup_help_view(struct tog_view *view, FILE **f, off_t **line_offsets,
9399 size_t *nlines, int **first, int **last, int **match, int **selected)
9400 {
9401 struct tog_help_view_state *s = &view->state.help;
9402
9403 *f = s->f;
9404 *nlines = s->nlines;
9405 *line_offsets = s->line_offsets;
9406 *match = &s->matched_line;
9407 *first = &s->first_displayed_line;
9408 *last = &s->last_displayed_line;
9409 *selected = &s->selected_line;
9410 }
9411
9412 static const struct got_error *
9413 show_help_view(struct tog_view *view)
9414 {
9415 struct tog_help_view_state *s = &view->state.help;
9416 const struct got_error *err;
9417 regmatch_t *regmatch = &view->regmatch;
9418 wchar_t *wline;
9419 char *line;
9420 ssize_t linelen;
9421 size_t linesz = 0;
9422 int width, nprinted = 0, rc = 0;
9423 int eos = view->nlines;
9424
9425 if (view_is_hsplit_top(view))
9426 --eos; /* account for border */
9427
9428 s->lineno = 0;
9429 rewind(s->f);
9430 werase(view->window);
9431
9432 if (view->gline > s->nlines - 1)
9433 view->gline = s->nlines - 1;
9434
9435 err = win_draw_center(view->window, 0, 0, view->ncols,
9436 view_needs_focus_indication(view),
9437 "tog help (press q to return to tog)");
9438 if (err)
9439 return err;
9440 if (eos <= 1)
9441 return NULL;
9442 waddstr(view->window, "\n\n");
9443 eos -= 2;
9444
9445 s->eof = 0;
9446 view->maxx = 0;
9447 line = NULL;
9448 while (eos > 0 && nprinted < eos) {
9449 attr_t attr = 0;
9450
9451 linelen = getline(&line, &linesz, s->f);
9452 if (linelen == -1) {
9453 if (!feof(s->f)) {
9454 free(line);
9455 return got_ferror(s->f, GOT_ERR_IO);
9456 }
9457 s->eof = 1;
9458 break;
9459 }
9460 if (++s->lineno < s->first_displayed_line)
9461 continue;
9462 if (view->gline && !gotoline(view, &s->lineno, &nprinted))
9463 continue;
9464 if (s->lineno == view->hiline)
9465 attr = A_STANDOUT;
9466
9467 err = format_line(&wline, &width, NULL, line, 0, INT_MAX, 0,
9468 view->x ? 1 : 0);
9469 if (err) {
9470 free(line);
9471 return err;
9472 }
9473 view->maxx = MAX(view->maxx, width);
9474 free(wline);
9475 wline = NULL;
9476
9477 if (attr)
9478 wattron(view->window, attr);
9479 if (s->first_displayed_line + nprinted == s->matched_line &&
9480 regmatch->rm_so >= 0 && regmatch->rm_so < regmatch->rm_eo) {
9481 err = add_matched_line(&width, line, view->ncols - 1, 0,
9482 view->window, view->x, regmatch);
9483 if (err) {
9484 free(line);
9485 return err;
9486 }
9487 } else {
9488 int skip;
9489
9490 err = format_line(&wline, &width, &skip, line,
9491 view->x, view->ncols, 0, view->x ? 1 : 0);
9492 if (err) {
9493 free(line);
9494 return err;
9495 }
9496 waddwstr(view->window, &wline[skip]);
9497 free(wline);
9498 wline = NULL;
9499 }
9500 if (s->lineno == view->hiline) {
9501 while (width++ < view->ncols)
9502 waddch(view->window, ' ');
9503 } else {
9504 if (width < view->ncols)
9505 waddch(view->window, '\n');
9506 }
9507 if (attr)
9508 wattroff(view->window, attr);
9509 if (++nprinted == 1)
9510 s->first_displayed_line = s->lineno;
9511 }
9512 free(line);
9513 if (nprinted > 0)
9514 s->last_displayed_line = s->first_displayed_line + nprinted - 1;
9515 else
9516 s->last_displayed_line = s->first_displayed_line;
9517
9518 view_border(view);
9519
9520 if (s->eof) {
9521 rc = waddnstr(view->window,
9522 "See the tog(1) manual page for full documentation",
9523 view->ncols - 1);
9524 if (rc == ERR)
9525 return got_error_msg(GOT_ERR_RANGE, "waddnstr");
9526 } else {
9527 wmove(view->window, view->nlines - 1, 0);
9528 wclrtoeol(view->window);
9529 wstandout(view->window);
9530 rc = waddnstr(view->window, "scroll down for more...",
9531 view->ncols - 1);
9532 if (rc == ERR)
9533 return got_error_msg(GOT_ERR_RANGE, "waddnstr");
9534 if (getcurx(view->window) < view->ncols - 6) {
9535 rc = wprintw(view->window, "[%.0f%%]",
9536 100.00 * s->last_displayed_line / s->nlines);
9537 if (rc == ERR)
9538 return got_error_msg(GOT_ERR_IO, "wprintw");
9539 }
9540 wstandend(view->window);
9541 }
9542
9543 return NULL;
9544 }
9545
9546 static const struct got_error *
9547 input_help_view(struct tog_view **new_view, struct tog_view *view, int ch)
9548 {
9549 struct tog_help_view_state *s = &view->state.help;
9550 const struct got_error *err = NULL;
9551 char *line = NULL;
9552 ssize_t linelen;
9553 size_t linesz = 0;
9554 int eos, nscroll;
9555
9556 eos = nscroll = view->nlines;
9557 if (view_is_hsplit_top(view))
9558 --eos; /* border */
9559
9560 s->lineno = s->first_displayed_line - 1 + s->selected_line;
9561
9562 switch (ch) {
9563 case '0':
9564 case '$':
9565 case KEY_RIGHT:
9566 case 'l':
9567 case KEY_LEFT:
9568 case 'h':
9569 horizontal_scroll_input(view, ch);
9570 break;
9571 case 'g':
9572 case KEY_HOME:
9573 s->first_displayed_line = 1;
9574 view->count = 0;
9575 break;
9576 case 'G':
9577 case KEY_END:
9578 view->count = 0;
9579 if (s->eof)
9580 break;
9581 s->first_displayed_line = (s->nlines - eos) + 3;
9582 s->eof = 1;
9583 break;
9584 case 'k':
9585 case KEY_UP:
9586 if (s->first_displayed_line > 1)
9587 --s->first_displayed_line;
9588 else
9589 view->count = 0;
9590 break;
9591 case CTRL('u'):
9592 case 'u':
9593 nscroll /= 2;
9594 /* FALL THROUGH */
9595 case KEY_PPAGE:
9596 case CTRL('b'):
9597 case 'b':
9598 if (s->first_displayed_line == 1) {
9599 view->count = 0;
9600 break;
9601 }
9602 while (--nscroll > 0 && s->first_displayed_line > 1)
9603 s->first_displayed_line--;
9604 break;
9605 case 'j':
9606 case KEY_DOWN:
9607 case CTRL('n'):
9608 if (!s->eof)
9609 ++s->first_displayed_line;
9610 else
9611 view->count = 0;
9612 break;
9613 case CTRL('d'):
9614 case 'd':
9615 nscroll /= 2;
9616 /* FALL THROUGH */
9617 case KEY_NPAGE:
9618 case CTRL('f'):
9619 case 'f':
9620 case ' ':
9621 if (s->eof) {
9622 view->count = 0;
9623 break;
9624 }
9625 while (!s->eof && --nscroll > 0) {
9626 linelen = getline(&line, &linesz, s->f);
9627 s->first_displayed_line++;
9628 if (linelen == -1) {
9629 if (feof(s->f))
9630 s->eof = 1;
9631 else
9632 err = got_ferror(s->f, GOT_ERR_IO);
9633 break;
9634 }
9635 }
9636 free(line);
9637 break;
9638 default:
9639 view->count = 0;
9640 break;
9641 }
9642
9643 return err;
9644 }
9645
9646 static const struct got_error *
9647 close_help_view(struct tog_view *view)
9648 {
9649 struct tog_help_view_state *s = &view->state.help;
9650
9651 free(s->line_offsets);
9652 s->line_offsets = NULL;
9653 if (fclose(s->f) == EOF)
9654 return got_error_from_errno("fclose");
9655
9656 return NULL;
9657 }
9658
9659 static const struct got_error *
9660 reset_help_view(struct tog_view *view)
9661 {
9662 struct tog_help_view_state *s = &view->state.help;
9663
9664
9665 if (s->f && fclose(s->f) == EOF)
9666 return got_error_from_errno("fclose");
9667
9668 wclear(view->window);
9669 view->count = 0;
9670 view->x = 0;
9671 s->all = !s->all;
9672 s->first_displayed_line = 1;
9673 s->last_displayed_line = view->nlines;
9674 s->matched_line = 0;
9675
9676 return create_help(s);
9677 }
9678
9679 static const struct got_error *
9680 open_help_view(struct tog_view *view, struct tog_view *parent)
9681 {
9682 const struct got_error *err = NULL;
9683 struct tog_help_view_state *s = &view->state.help;
9684
9685 s->type = (enum tog_keymap_type)parent->type;
9686 s->first_displayed_line = 1;
9687 s->last_displayed_line = view->nlines;
9688 s->selected_line = 1;
9689
9690 view->show = show_help_view;
9691 view->input = input_help_view;
9692 view->reset = reset_help_view;
9693 view->close = close_help_view;
9694 view->search_start = search_start_help_view;
9695 view->search_setup = search_setup_help_view;
9696 view->search_next = search_next_view_match;
9697
9698 err = create_help(s);
9699 return err;
9700 }
9701
9702 static const struct got_error *
9703 view_dispatch_request(struct tog_view **new_view, struct tog_view *view,
9704 enum tog_view_type request, int y, int x)
9705 {
9706 const struct got_error *err = NULL;
9707
9708 *new_view = NULL;
9709
9710 switch (request) {
9711 case TOG_VIEW_DIFF:
9712 if (view->type == TOG_VIEW_LOG) {
9713 struct tog_log_view_state *s = &view->state.log;
9714
9715 err = open_diff_view_for_commit(new_view, y, x,
9716 s->selected_entry->commit, s->selected_entry->id,
9717 view, s->repo);
9718 } else
9719 return got_error_msg(GOT_ERR_NOT_IMPL,
9720 "parent/child view pair not supported");
9721 break;
9722 case TOG_VIEW_BLAME:
9723 if (view->type == TOG_VIEW_TREE) {
9724 struct tog_tree_view_state *s = &view->state.tree;
9725
9726 err = blame_tree_entry(new_view, y, x,
9727 s->selected_entry, &s->parents, s->commit_id,
9728 s->repo);
9729 } else
9730 return got_error_msg(GOT_ERR_NOT_IMPL,
9731 "parent/child view pair not supported");
9732 break;
9733 case TOG_VIEW_LOG:
9734 if (view->type == TOG_VIEW_BLAME)
9735 err = log_annotated_line(new_view, y, x,
9736 view->state.blame.repo, view->state.blame.id_to_log);
9737 else if (view->type == TOG_VIEW_TREE)
9738 err = log_selected_tree_entry(new_view, y, x,
9739 &view->state.tree);
9740 else if (view->type == TOG_VIEW_REF)
9741 err = log_ref_entry(new_view, y, x,
9742 view->state.ref.selected_entry,
9743 view->state.ref.repo);
9744 else
9745 return got_error_msg(GOT_ERR_NOT_IMPL,
9746 "parent/child view pair not supported");
9747 break;
9748 case TOG_VIEW_TREE:
9749 if (view->type == TOG_VIEW_LOG)
9750 err = browse_commit_tree(new_view, y, x,
9751 view->state.log.selected_entry,
9752 view->state.log.in_repo_path,
9753 view->state.log.head_ref_name,
9754 view->state.log.repo);
9755 else if (view->type == TOG_VIEW_REF)
9756 err = browse_ref_tree(new_view, y, x,
9757 view->state.ref.selected_entry,
9758 view->state.ref.repo);
9759 else
9760 return got_error_msg(GOT_ERR_NOT_IMPL,
9761 "parent/child view pair not supported");
9762 break;
9763 case TOG_VIEW_REF:
9764 *new_view = view_open(0, 0, y, x, TOG_VIEW_REF);
9765 if (*new_view == NULL)
9766 return got_error_from_errno("view_open");
9767 if (view->type == TOG_VIEW_LOG)
9768 err = open_ref_view(*new_view, view->state.log.repo);
9769 else if (view->type == TOG_VIEW_TREE)
9770 err = open_ref_view(*new_view, view->state.tree.repo);
9771 else
9772 err = got_error_msg(GOT_ERR_NOT_IMPL,
9773 "parent/child view pair not supported");
9774 if (err)
9775 view_close(*new_view);
9776 break;
9777 case TOG_VIEW_HELP:
9778 *new_view = view_open(0, 0, 0, 0, TOG_VIEW_HELP);
9779 if (*new_view == NULL)
9780 return got_error_from_errno("view_open");
9781 err = open_help_view(*new_view, view);
9782 if (err)
9783 view_close(*new_view);
9784 break;
9785 default:
9786 return got_error_msg(GOT_ERR_NOT_IMPL, "invalid view");
9787 }
9788
9789 return err;
9790 }
9791
9792 /*
9793 * If view was scrolled down to move the selected line into view when opening a
9794 * horizontal split, scroll back up when closing the split/toggling fullscreen.
9795 */
9796 static void
9797 offset_selection_up(struct tog_view *view)
9798 {
9799 switch (view->type) {
9800 case TOG_VIEW_BLAME: {
9801 struct tog_blame_view_state *s = &view->state.blame;
9802 if (s->first_displayed_line == 1) {
9803 s->selected_line = MAX(s->selected_line - view->offset,
9804 1);
9805 break;
9806 }
9807 if (s->first_displayed_line > view->offset)
9808 s->first_displayed_line -= view->offset;
9809 else
9810 s->first_displayed_line = 1;
9811 s->selected_line += view->offset;
9812 break;
9813 }
9814 case TOG_VIEW_LOG:
9815 log_scroll_up(&view->state.log, view->offset);
9816 view->state.log.selected += view->offset;
9817 break;
9818 case TOG_VIEW_REF:
9819 ref_scroll_up(&view->state.ref, view->offset);
9820 view->state.ref.selected += view->offset;
9821 break;
9822 case TOG_VIEW_TREE:
9823 tree_scroll_up(&view->state.tree, view->offset);
9824 view->state.tree.selected += view->offset;
9825 break;
9826 default:
9827 break;
9828 }
9829
9830 view->offset = 0;
9831 }
9832
9833 /*
9834 * If the selected line is in the section of screen covered by the bottom split,
9835 * scroll down offset lines to move it into view and index its new position.
9836 */
9837 static const struct got_error *
9838 offset_selection_down(struct tog_view *view)
9839 {
9840 const struct got_error *err = NULL;
9841 const struct got_error *(*scrolld)(struct tog_view *, int);
9842 int *selected = NULL;
9843 int header, offset;
9844
9845 switch (view->type) {
9846 case TOG_VIEW_BLAME: {
9847 struct tog_blame_view_state *s = &view->state.blame;
9848 header = 3;
9849 scrolld = NULL;
9850 if (s->selected_line > view->nlines - header) {
9851 offset = abs(view->nlines - s->selected_line - header);
9852 s->first_displayed_line += offset;
9853 s->selected_line -= offset;
9854 view->offset = offset;
9855 }
9856 break;
9857 }
9858 case TOG_VIEW_LOG: {
9859 struct tog_log_view_state *s = &view->state.log;
9860 scrolld = &log_scroll_down;
9861 header = view_is_parent_view(view) ? 3 : 2;
9862 selected = &s->selected;
9863 break;
9864 }
9865 case TOG_VIEW_REF: {
9866 struct tog_ref_view_state *s = &view->state.ref;
9867 scrolld = &ref_scroll_down;
9868 header = 3;
9869 selected = &s->selected;
9870 break;
9871 }
9872 case TOG_VIEW_TREE: {
9873 struct tog_tree_view_state *s = &view->state.tree;
9874 scrolld = &tree_scroll_down;
9875 header = 5;
9876 selected = &s->selected;
9877 break;
9878 }
9879 default:
9880 selected = NULL;
9881 scrolld = NULL;
9882 header = 0;
9883 break;
9884 }
9885
9886 if (selected && *selected > view->nlines - header) {
9887 offset = abs(view->nlines - *selected - header);
9888 view->offset = offset;
9889 if (scrolld && offset) {
9890 err = scrolld(view, offset);
9891 *selected -= offset;
9892 }
9893 }
9894
9895 return err;
9896 }
9897
9898 static void
9899 list_commands(FILE *fp)
9900 {
9901 size_t i;
9902
9903 fprintf(fp, "commands:");
9904 for (i = 0; i < nitems(tog_commands); i++) {
9905 const struct tog_cmd *cmd = &tog_commands[i];
9906 fprintf(fp, " %s", cmd->name);
9907 }
9908 fputc('\n', fp);
9909 }
9910
9911 __dead static void
9912 usage(int hflag, int status)
9913 {
9914 FILE *fp = (status == 0) ? stdout : stderr;
9915
9916 fprintf(fp, "usage: %s [-hV] command [arg ...]\n",
9917 getprogname());
9918 if (hflag) {
9919 fprintf(fp, "lazy usage: %s path\n", getprogname());
9920 list_commands(fp);
9921 }
9922 exit(status);
9923 }
9924
9925 static char **
9926 make_argv(int argc, ...)
9927 {
9928 va_list ap;
9929 char **argv;
9930 int i;
9931
9932 va_start(ap, argc);
9933
9934 argv = calloc(argc, sizeof(char *));
9935 if (argv == NULL)
9936 err(1, "calloc");
9937 for (i = 0; i < argc; i++) {
9938 argv[i] = strdup(va_arg(ap, char *));
9939 if (argv[i] == NULL)
9940 err(1, "strdup");
9941 }
9942
9943 va_end(ap);
9944 return argv;
9945 }
9946
9947 /*
9948 * Try to convert 'tog path' into a 'tog log path' command.
9949 * The user could simply have mistyped the command rather than knowingly
9950 * provided a path. So check whether argv[0] can in fact be resolved
9951 * to a path in the HEAD commit and print a special error if not.
9952 * This hack is for mpi@ <3
9953 */
9954 static const struct got_error *
9955 tog_log_with_path(int argc, char *argv[])
9956 {
9957 const struct got_error *error = NULL, *close_err;
9958 const struct tog_cmd *cmd = NULL;
9959 struct got_repository *repo = NULL;
9960 struct got_worktree *worktree = NULL;
9961 struct got_object_id *commit_id = NULL, *id = NULL;
9962 struct got_commit_object *commit = NULL;
9963 char *cwd = NULL, *repo_path = NULL, *in_repo_path = NULL;
9964 char *commit_id_str = NULL, **cmd_argv = NULL;
9965 int *pack_fds = NULL;
9966
9967 cwd = getcwd(NULL, 0);
9968 if (cwd == NULL)
9969 return got_error_from_errno("getcwd");
9970
9971 error = got_repo_pack_fds_open(&pack_fds);
9972 if (error != NULL)
9973 goto done;
9974
9975 error = got_worktree_open(&worktree, cwd, NULL);
9976 if (error && error->code != GOT_ERR_NOT_WORKTREE)
9977 goto done;
9978
9979 if (worktree)
9980 repo_path = strdup(got_worktree_get_repo_path(worktree));
9981 else
9982 repo_path = strdup(cwd);
9983 if (repo_path == NULL) {
9984 error = got_error_from_errno("strdup");
9985 goto done;
9986 }
9987
9988 error = got_repo_open(&repo, repo_path, NULL, pack_fds);
9989 if (error != NULL)
9990 goto done;
9991
9992 error = get_in_repo_path_from_argv0(&in_repo_path, argc, argv,
9993 repo, worktree);
9994 if (error)
9995 goto done;
9996
9997 error = tog_load_refs(repo, 0);
9998 if (error)
9999 goto done;
10000 error = got_repo_match_object_id(&commit_id, NULL, worktree ?
10001 got_worktree_get_head_ref_name(worktree) : GOT_REF_HEAD,
10002 GOT_OBJ_TYPE_COMMIT, &tog_refs, repo);
10003 if (error)
10004 goto done;
10005
10006 if (worktree) {
10007 got_worktree_close(worktree);
10008 worktree = NULL;
10009 }
10010
10011 error = got_object_open_as_commit(&commit, repo, commit_id);
10012 if (error)
10013 goto done;
10014
10015 error = got_object_id_by_path(&id, repo, commit, in_repo_path);
10016 if (error) {
10017 if (error->code != GOT_ERR_NO_TREE_ENTRY)
10018 goto done;
10019 fprintf(stderr, "%s: '%s' is no known command or path\n",
10020 getprogname(), argv[0]);
10021 usage(1, 1);
10022 /* not reached */
10023 }
10024
10025 error = got_object_id_str(&commit_id_str, commit_id);
10026 if (error)
10027 goto done;
10028
10029 cmd = &tog_commands[0]; /* log */
10030 argc = 4;
10031 cmd_argv = make_argv(argc, cmd->name, "-c", commit_id_str, argv[0]);
10032 error = cmd->cmd_main(argc, cmd_argv);
10033 done:
10034 if (repo) {
10035 close_err = got_repo_close(repo);
10036 if (error == NULL)
10037 error = close_err;
10038 }
10039 if (commit)
10040 got_object_commit_close(commit);
10041 if (worktree)
10042 got_worktree_close(worktree);
10043 if (pack_fds) {
10044 const struct got_error *pack_err =
10045 got_repo_pack_fds_close(pack_fds);
10046 if (error == NULL)
10047 error = pack_err;
10048 }
10049 free(id);
10050 free(commit_id_str);
10051 free(commit_id);
10052 free(cwd);
10053 free(repo_path);
10054 free(in_repo_path);
10055 if (cmd_argv) {
10056 int i;
10057 for (i = 0; i < argc; i++)
10058 free(cmd_argv[i]);
10059 free(cmd_argv);
10060 }
10061 tog_free_refs();
10062 return error;
10063 }
10064
10065 int
10066 main(int argc, char *argv[])
10067 {
10068 const struct got_error *io_err, *error = NULL;
10069 const struct tog_cmd *cmd = NULL;
10070 int ch, hflag = 0, Vflag = 0;
10071 char **cmd_argv = NULL;
10072 static const struct option longopts[] = {
10073 { "version", no_argument, NULL, 'V' },
10074 { NULL, 0, NULL, 0}
10075 };
10076 char *diff_algo_str = NULL;
10077 const char *test_script_path;
10078
10079 setlocale(LC_CTYPE, "");
10080
10081 /*
10082 * Override default signal handlers before starting ncurses.
10083 * This should prevent ncurses from installing its own
10084 * broken cleanup() signal handler.
10085 */
10086 signal(SIGWINCH, tog_sigwinch);
10087 signal(SIGPIPE, tog_sigpipe);
10088 signal(SIGCONT, tog_sigcont);
10089 signal(SIGINT, tog_sigint);
10090 signal(SIGTERM, tog_sigterm);
10091
10092 /*
10093 * Test mode init must happen before pledge() because "tty" will
10094 * not allow TTY-related ioctls to occur via regular files.
10095 */
10096 test_script_path = getenv("TOG_TEST_SCRIPT");
10097 if (test_script_path != NULL) {
10098 error = init_mock_term(test_script_path);
10099 if (error) {
10100 fprintf(stderr, "%s: %s\n", getprogname(), error->msg);
10101 return 1;
10102 }
10103 } else if (!isatty(STDIN_FILENO))
10104 errx(1, "standard input is not a tty");
10105
10106 #if !defined(PROFILE)
10107 if (pledge("stdio rpath wpath cpath flock proc tty exec sendfd unveil",
10108 NULL) == -1)
10109 err(1, "pledge");
10110 #endif
10111
10112 while ((ch = getopt_long(argc, argv, "+hV", longopts, NULL)) != -1) {
10113 switch (ch) {
10114 case 'h':
10115 hflag = 1;
10116 break;
10117 case 'V':
10118 Vflag = 1;
10119 break;
10120 default:
10121 usage(hflag, 1);
10122 /* NOTREACHED */
10123 }
10124 }
10125
10126 argc -= optind;
10127 argv += optind;
10128 optind = 1;
10129 optreset = 1;
10130
10131 if (Vflag) {
10132 got_version_print_str();
10133 return 0;
10134 }
10135
10136 if (argc == 0) {
10137 if (hflag)
10138 usage(hflag, 0);
10139 /* Build an argument vector which runs a default command. */
10140 cmd = &tog_commands[0];
10141 argc = 1;
10142 cmd_argv = make_argv(argc, cmd->name);
10143 } else {
10144 size_t i;
10145
10146 /* Did the user specify a command? */
10147 for (i = 0; i < nitems(tog_commands); i++) {
10148 if (strncmp(tog_commands[i].name, argv[0],
10149 strlen(argv[0])) == 0) {
10150 cmd = &tog_commands[i];
10151 break;
10152 }
10153 }
10154 }
10155
10156 diff_algo_str = getenv("TOG_DIFF_ALGORITHM");
10157 if (diff_algo_str) {
10158 if (strcasecmp(diff_algo_str, "patience") == 0)
10159 tog_diff_algo = GOT_DIFF_ALGORITHM_PATIENCE;
10160 if (strcasecmp(diff_algo_str, "myers") == 0)
10161 tog_diff_algo = GOT_DIFF_ALGORITHM_MYERS;
10162 }
10163
10164 tog_base_commit.idx = -1;
10165 tog_base_commit.marker = GOT_WORKTREE_STATE_UNKNOWN;
10166
10167 if (cmd == NULL) {
10168 if (argc != 1)
10169 usage(0, 1);
10170 /* No command specified; try log with a path */
10171 error = tog_log_with_path(argc, argv);
10172 } else {
10173 if (hflag)
10174 cmd->cmd_usage();
10175 else
10176 error = cmd->cmd_main(argc, cmd_argv ? cmd_argv : argv);
10177 }
10178
10179 if (using_mock_io) {
10180 io_err = tog_io_close();
10181 if (error == NULL)
10182 error = io_err;
10183 }
10184 endwin();
10185 if (cmd_argv) {
10186 int i;
10187 for (i = 0; i < argc; i++)
10188 free(cmd_argv[i]);
10189 free(cmd_argv);
10190 }
10191
10192 if (error && error->code != GOT_ERR_CANCELLED &&
10193 error->code != GOT_ERR_EOF &&
10194 error->code != GOT_ERR_PRIVSEP_EXIT &&
10195 error->code != GOT_ERR_PRIVSEP_PIPE &&
10196 !(error->code == GOT_ERR_ERRNO && errno == EINTR)) {
10197 fprintf(stderr, "%s: %s\n", getprogname(), error->msg);
10198 return 1;
10199 }
10200 return 0;
10201 }
portable version of Game of Trees