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portable: release 0.90
[got-portable.git] / tog / tog.c
blob2f8f6f6dd53d12499d33c43690763d5bfc87401e
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
62 #ifndef MIN
63 #define MIN(_a,_b) ((_a) < (_b) ? (_a) : (_b))
64 #endif
65
66 #ifndef MAX
67 #define MAX(_a,_b) ((_a) > (_b) ? (_a) : (_b))
68 #endif
69
70 #ifndef CTRL
71 #define CTRL(x) ((x) & 0x1f)
72 #endif
73
74 #ifndef nitems
75 #define nitems(_a) (sizeof((_a)) / sizeof((_a)[0]))
76 #endif
77
78 struct tog_cmd {
79 const char *name;
80 const struct got_error *(*cmd_main)(int, char *[]);
81 void (*cmd_usage)(void);
82 };
83
84 __dead static void usage(int, int);
85 __dead static void usage_log(void);
86 __dead static void usage_diff(void);
87 __dead static void usage_blame(void);
88 __dead static void usage_tree(void);
89 __dead static void usage_ref(void);
90
91 static const struct got_error* cmd_log(int, char *[]);
92 static const struct got_error* cmd_diff(int, char *[]);
93 static const struct got_error* cmd_blame(int, char *[]);
94 static const struct got_error* cmd_tree(int, char *[]);
95 static const struct got_error* cmd_ref(int, char *[]);
96
97 static const struct tog_cmd tog_commands[] = {
98 { "log", cmd_log, usage_log },
99 { "diff", cmd_diff, usage_diff },
100 { "blame", cmd_blame, usage_blame },
101 { "tree", cmd_tree, usage_tree },
102 { "ref", cmd_ref, usage_ref },
103 };
104
105 enum tog_view_type {
106 TOG_VIEW_DIFF,
107 TOG_VIEW_LOG,
108 TOG_VIEW_BLAME,
109 TOG_VIEW_TREE,
110 TOG_VIEW_REF,
111 TOG_VIEW_HELP
112 };
113
114 /* Match _DIFF to _HELP with enum tog_view_type TOG_VIEW_* counterparts. */
115 enum tog_keymap_type {
116 TOG_KEYMAP_KEYS = -2,
117 TOG_KEYMAP_GLOBAL,
118 TOG_KEYMAP_DIFF,
119 TOG_KEYMAP_LOG,
120 TOG_KEYMAP_BLAME,
121 TOG_KEYMAP_TREE,
122 TOG_KEYMAP_REF,
123 TOG_KEYMAP_HELP
124 };
125
126 enum tog_view_mode {
127 TOG_VIEW_SPLIT_NONE,
128 TOG_VIEW_SPLIT_VERT,
129 TOG_VIEW_SPLIT_HRZN
130 };
131
132 #define HSPLIT_SCALE 0.3f /* default horizontal split scale */
133
134 #define TOG_EOF_STRING "(END)"
135
136 struct commit_queue_entry {
137 TAILQ_ENTRY(commit_queue_entry) entry;
138 struct got_object_id *id;
139 struct got_commit_object *commit;
140 int idx;
141 };
142 TAILQ_HEAD(commit_queue_head, commit_queue_entry);
143 struct commit_queue {
144 int ncommits;
145 struct commit_queue_head head;
146 };
147
148 struct tog_color {
149 STAILQ_ENTRY(tog_color) entry;
150 regex_t regex;
151 short colorpair;
152 };
153 STAILQ_HEAD(tog_colors, tog_color);
154
155 static struct got_reflist_head tog_refs = TAILQ_HEAD_INITIALIZER(tog_refs);
156 static struct got_reflist_object_id_map *tog_refs_idmap;
157 static enum got_diff_algorithm tog_diff_algo = GOT_DIFF_ALGORITHM_MYERS;
158
159 static const struct got_error *
160 tog_ref_cmp_by_name(void *arg, int *cmp, struct got_reference *re1,
161 struct got_reference* re2)
162 {
163 const char *name1 = got_ref_get_name(re1);
164 const char *name2 = got_ref_get_name(re2);
165 int isbackup1, isbackup2;
166
167 /* Sort backup refs towards the bottom of the list. */
168 isbackup1 = strncmp(name1, "refs/got/backup/", 16) == 0;
169 isbackup2 = strncmp(name2, "refs/got/backup/", 16) == 0;
170 if (!isbackup1 && isbackup2) {
171 *cmp = -1;
172 return NULL;
173 } else if (isbackup1 && !isbackup2) {
174 *cmp = 1;
175 return NULL;
176 }
177
178 *cmp = got_path_cmp(name1, name2, strlen(name1), strlen(name2));
179 return NULL;
180 }
181
182 static const struct got_error *
183 tog_load_refs(struct got_repository *repo, int sort_by_date)
184 {
185 const struct got_error *err;
186
187 err = got_ref_list(&tog_refs, repo, NULL, sort_by_date ?
188 got_ref_cmp_by_commit_timestamp_descending : tog_ref_cmp_by_name,
189 repo);
190 if (err)
191 return err;
192
193 return got_reflist_object_id_map_create(&tog_refs_idmap, &tog_refs,
194 repo);
195 }
196
197 static void
198 tog_free_refs(void)
199 {
200 if (tog_refs_idmap) {
201 got_reflist_object_id_map_free(tog_refs_idmap);
202 tog_refs_idmap = NULL;
203 }
204 got_ref_list_free(&tog_refs);
205 }
206
207 static const struct got_error *
208 add_color(struct tog_colors *colors, const char *pattern,
209 int idx, short color)
210 {
211 const struct got_error *err = NULL;
212 struct tog_color *tc;
213 int regerr = 0;
214
215 if (idx < 1 || idx > COLOR_PAIRS - 1)
216 return NULL;
217
218 init_pair(idx, color, -1);
219
220 tc = calloc(1, sizeof(*tc));
221 if (tc == NULL)
222 return got_error_from_errno("calloc");
223 regerr = regcomp(&tc->regex, pattern,
224 REG_EXTENDED | REG_NOSUB | REG_NEWLINE);
225 if (regerr) {
226 static char regerr_msg[512];
227 static char err_msg[512];
228 regerror(regerr, &tc->regex, regerr_msg,
229 sizeof(regerr_msg));
230 snprintf(err_msg, sizeof(err_msg), "regcomp: %s",
231 regerr_msg);
232 err = got_error_msg(GOT_ERR_REGEX, err_msg);
233 free(tc);
234 return err;
235 }
236 tc->colorpair = idx;
237 STAILQ_INSERT_HEAD(colors, tc, entry);
238 return NULL;
239 }
240
241 static void
242 free_colors(struct tog_colors *colors)
243 {
244 struct tog_color *tc;
245
246 while (!STAILQ_EMPTY(colors)) {
247 tc = STAILQ_FIRST(colors);
248 STAILQ_REMOVE_HEAD(colors, entry);
249 regfree(&tc->regex);
250 free(tc);
251 }
252 }
253
254 static struct tog_color *
255 get_color(struct tog_colors *colors, int colorpair)
256 {
257 struct tog_color *tc = NULL;
258
259 STAILQ_FOREACH(tc, colors, entry) {
260 if (tc->colorpair == colorpair)
261 return tc;
262 }
263
264 return NULL;
265 }
266
267 static int
268 default_color_value(const char *envvar)
269 {
270 if (strcmp(envvar, "TOG_COLOR_DIFF_MINUS") == 0)
271 return COLOR_MAGENTA;
272 if (strcmp(envvar, "TOG_COLOR_DIFF_PLUS") == 0)
273 return COLOR_CYAN;
274 if (strcmp(envvar, "TOG_COLOR_DIFF_CHUNK_HEADER") == 0)
275 return COLOR_YELLOW;
276 if (strcmp(envvar, "TOG_COLOR_DIFF_META") == 0)
277 return COLOR_GREEN;
278 if (strcmp(envvar, "TOG_COLOR_TREE_SUBMODULE") == 0)
279 return COLOR_MAGENTA;
280 if (strcmp(envvar, "TOG_COLOR_TREE_SYMLINK") == 0)
281 return COLOR_MAGENTA;
282 if (strcmp(envvar, "TOG_COLOR_TREE_DIRECTORY") == 0)
283 return COLOR_CYAN;
284 if (strcmp(envvar, "TOG_COLOR_TREE_EXECUTABLE") == 0)
285 return COLOR_GREEN;
286 if (strcmp(envvar, "TOG_COLOR_COMMIT") == 0)
287 return COLOR_GREEN;
288 if (strcmp(envvar, "TOG_COLOR_AUTHOR") == 0)
289 return COLOR_CYAN;
290 if (strcmp(envvar, "TOG_COLOR_DATE") == 0)
291 return COLOR_YELLOW;
292 if (strcmp(envvar, "TOG_COLOR_REFS_HEADS") == 0)
293 return COLOR_GREEN;
294 if (strcmp(envvar, "TOG_COLOR_REFS_TAGS") == 0)
295 return COLOR_MAGENTA;
296 if (strcmp(envvar, "TOG_COLOR_REFS_REMOTES") == 0)
297 return COLOR_YELLOW;
298 if (strcmp(envvar, "TOG_COLOR_REFS_BACKUP") == 0)
299 return COLOR_CYAN;
300
301 return -1;
302 }
303
304 static int
305 get_color_value(const char *envvar)
306 {
307 const char *val = getenv(envvar);
308
309 if (val == NULL)
310 return default_color_value(envvar);
311
312 if (strcasecmp(val, "black") == 0)
313 return COLOR_BLACK;
314 if (strcasecmp(val, "red") == 0)
315 return COLOR_RED;
316 if (strcasecmp(val, "green") == 0)
317 return COLOR_GREEN;
318 if (strcasecmp(val, "yellow") == 0)
319 return COLOR_YELLOW;
320 if (strcasecmp(val, "blue") == 0)
321 return COLOR_BLUE;
322 if (strcasecmp(val, "magenta") == 0)
323 return COLOR_MAGENTA;
324 if (strcasecmp(val, "cyan") == 0)
325 return COLOR_CYAN;
326 if (strcasecmp(val, "white") == 0)
327 return COLOR_WHITE;
328 if (strcasecmp(val, "default") == 0)
329 return -1;
330
331 return default_color_value(envvar);
332 }
333
334 struct tog_diff_view_state {
335 struct got_object_id *id1, *id2;
336 const char *label1, *label2;
337 FILE *f, *f1, *f2;
338 int fd1, fd2;
339 int lineno;
340 int first_displayed_line;
341 int last_displayed_line;
342 int eof;
343 int diff_context;
344 int ignore_whitespace;
345 int force_text_diff;
346 struct got_repository *repo;
347 struct got_diff_line *lines;
348 size_t nlines;
349 int matched_line;
350 int selected_line;
351
352 /* passed from log or blame view; may be NULL */
353 struct tog_view *parent_view;
354 };
355
356 pthread_mutex_t tog_mutex = PTHREAD_MUTEX_INITIALIZER;
357 static volatile sig_atomic_t tog_thread_error;
358
359 struct tog_log_thread_args {
360 pthread_cond_t need_commits;
361 pthread_cond_t commit_loaded;
362 int commits_needed;
363 int load_all;
364 struct got_commit_graph *graph;
365 struct commit_queue *real_commits;
366 const char *in_repo_path;
367 struct got_object_id *start_id;
368 struct got_repository *repo;
369 int *pack_fds;
370 int log_complete;
371 sig_atomic_t *quit;
372 struct commit_queue_entry **first_displayed_entry;
373 struct commit_queue_entry **selected_entry;
374 int *searching;
375 int *search_next_done;
376 regex_t *regex;
377 int *limiting;
378 int limit_match;
379 regex_t *limit_regex;
380 struct commit_queue *limit_commits;
381 };
382
383 struct tog_log_view_state {
384 struct commit_queue *commits;
385 struct commit_queue_entry *first_displayed_entry;
386 struct commit_queue_entry *last_displayed_entry;
387 struct commit_queue_entry *selected_entry;
388 struct commit_queue real_commits;
389 int selected;
390 char *in_repo_path;
391 char *head_ref_name;
392 int log_branches;
393 struct got_repository *repo;
394 struct got_object_id *start_id;
395 sig_atomic_t quit;
396 pthread_t thread;
397 struct tog_log_thread_args thread_args;
398 struct commit_queue_entry *matched_entry;
399 struct commit_queue_entry *search_entry;
400 struct tog_colors colors;
401 int use_committer;
402 int limit_view;
403 regex_t limit_regex;
404 struct commit_queue limit_commits;
405 };
406
407 #define TOG_COLOR_DIFF_MINUS 1
408 #define TOG_COLOR_DIFF_PLUS 2
409 #define TOG_COLOR_DIFF_CHUNK_HEADER 3
410 #define TOG_COLOR_DIFF_META 4
411 #define TOG_COLOR_TREE_SUBMODULE 5
412 #define TOG_COLOR_TREE_SYMLINK 6
413 #define TOG_COLOR_TREE_DIRECTORY 7
414 #define TOG_COLOR_TREE_EXECUTABLE 8
415 #define TOG_COLOR_COMMIT 9
416 #define TOG_COLOR_AUTHOR 10
417 #define TOG_COLOR_DATE 11
418 #define TOG_COLOR_REFS_HEADS 12
419 #define TOG_COLOR_REFS_TAGS 13
420 #define TOG_COLOR_REFS_REMOTES 14
421 #define TOG_COLOR_REFS_BACKUP 15
422
423 struct tog_blame_cb_args {
424 struct tog_blame_line *lines; /* one per line */
425 int nlines;
426
427 struct tog_view *view;
428 struct got_object_id *commit_id;
429 int *quit;
430 };
431
432 struct tog_blame_thread_args {
433 const char *path;
434 struct got_repository *repo;
435 struct tog_blame_cb_args *cb_args;
436 int *complete;
437 got_cancel_cb cancel_cb;
438 void *cancel_arg;
439 pthread_cond_t blame_complete;
440 };
441
442 struct tog_blame {
443 FILE *f;
444 off_t filesize;
445 struct tog_blame_line *lines;
446 int nlines;
447 off_t *line_offsets;
448 pthread_t thread;
449 struct tog_blame_thread_args thread_args;
450 struct tog_blame_cb_args cb_args;
451 const char *path;
452 int *pack_fds;
453 };
454
455 struct tog_blame_view_state {
456 int first_displayed_line;
457 int last_displayed_line;
458 int selected_line;
459 int last_diffed_line;
460 int blame_complete;
461 int eof;
462 int done;
463 struct got_object_id_queue blamed_commits;
464 struct got_object_qid *blamed_commit;
465 char *path;
466 struct got_repository *repo;
467 struct got_object_id *commit_id;
468 struct got_object_id *id_to_log;
469 struct tog_blame blame;
470 int matched_line;
471 struct tog_colors colors;
472 };
473
474 struct tog_parent_tree {
475 TAILQ_ENTRY(tog_parent_tree) entry;
476 struct got_tree_object *tree;
477 struct got_tree_entry *first_displayed_entry;
478 struct got_tree_entry *selected_entry;
479 int selected;
480 };
481
482 TAILQ_HEAD(tog_parent_trees, tog_parent_tree);
483
484 struct tog_tree_view_state {
485 char *tree_label;
486 struct got_object_id *commit_id;/* commit which this tree belongs to */
487 struct got_tree_object *root; /* the commit's root tree entry */
488 struct got_tree_object *tree; /* currently displayed (sub-)tree */
489 struct got_tree_entry *first_displayed_entry;
490 struct got_tree_entry *last_displayed_entry;
491 struct got_tree_entry *selected_entry;
492 int ndisplayed, selected, show_ids;
493 struct tog_parent_trees parents; /* parent trees of current sub-tree */
494 char *head_ref_name;
495 struct got_repository *repo;
496 struct got_tree_entry *matched_entry;
497 struct tog_colors colors;
498 };
499
500 struct tog_reflist_entry {
501 TAILQ_ENTRY(tog_reflist_entry) entry;
502 struct got_reference *ref;
503 int idx;
504 };
505
506 TAILQ_HEAD(tog_reflist_head, tog_reflist_entry);
507
508 struct tog_ref_view_state {
509 struct tog_reflist_head refs;
510 struct tog_reflist_entry *first_displayed_entry;
511 struct tog_reflist_entry *last_displayed_entry;
512 struct tog_reflist_entry *selected_entry;
513 int nrefs, ndisplayed, selected, show_date, show_ids, sort_by_date;
514 struct got_repository *repo;
515 struct tog_reflist_entry *matched_entry;
516 struct tog_colors colors;
517 };
518
519 struct tog_help_view_state {
520 FILE *f;
521 off_t *line_offsets;
522 size_t nlines;
523 int lineno;
524 int first_displayed_line;
525 int last_displayed_line;
526 int eof;
527 int matched_line;
528 int selected_line;
529 int all;
530 enum tog_keymap_type type;
531 };
532
533 #define GENERATE_HELP \
534 KEYMAP_("Global", TOG_KEYMAP_GLOBAL), \
535 KEY_("H F1", "Open view-specific help (double tap for all help)"), \
536 KEY_("k C-p Up", "Move cursor or page up one line"), \
537 KEY_("j C-n Down", "Move cursor or page down one line"), \
538 KEY_("C-b b PgUp", "Scroll the view up one page"), \
539 KEY_("C-f f PgDn Space", "Scroll the view down one page"), \
540 KEY_("C-u u", "Scroll the view up one half page"), \
541 KEY_("C-d d", "Scroll the view down one half page"), \
542 KEY_("g", "Go to line N (default: first line)"), \
543 KEY_("Home =", "Go to the first line"), \
544 KEY_("G", "Go to line N (default: last line)"), \
545 KEY_("End *", "Go to the last line"), \
546 KEY_("l Right", "Scroll the view right"), \
547 KEY_("h Left", "Scroll the view left"), \
548 KEY_("$", "Scroll view to the rightmost position"), \
549 KEY_("0", "Scroll view to the leftmost position"), \
550 KEY_("-", "Decrease size of the focussed split"), \
551 KEY_("+", "Increase size of the focussed split"), \
552 KEY_("Tab", "Switch focus between views"), \
553 KEY_("F", "Toggle fullscreen mode"), \
554 KEY_("S", "Switch split-screen layout"), \
555 KEY_("/", "Open prompt to enter search term"), \
556 KEY_("n", "Find next line/token matching the current search term"), \
557 KEY_("N", "Find previous line/token matching the current search term"),\
558 KEY_("q", "Quit the focussed view; Quit help screen"), \
559 KEY_("Q", "Quit tog"), \
560 \
561 KEYMAP_("Log view", TOG_KEYMAP_LOG), \
562 KEY_("< ,", "Move cursor up one commit"), \
563 KEY_("> .", "Move cursor down one commit"), \
564 KEY_("Enter", "Open diff view of the selected commit"), \
565 KEY_("B", "Reload the log view and toggle display of merged commits"), \
566 KEY_("R", "Open ref view of all repository references"), \
567 KEY_("T", "Display tree view of the repository from the selected" \
568 " commit"), \
569 KEY_("@", "Toggle between displaying author and committer name"), \
570 KEY_("&", "Open prompt to enter term to limit commits displayed"), \
571 KEY_("C-g Backspace", "Cancel current search or log operation"), \
572 KEY_("C-l", "Reload the log view with new commits in the repository"), \
573 \
574 KEYMAP_("Diff view", TOG_KEYMAP_DIFF), \
575 KEY_("K < ,", "Display diff of next line in the file/log entry"), \
576 KEY_("J > .", "Display diff of previous line in the file/log entry"), \
577 KEY_("A", "Toggle between Myers and Patience diff algorithm"), \
578 KEY_("a", "Toggle treatment of file as ASCII irrespective of binary" \
579 " data"), \
580 KEY_("(", "Go to the previous file in the diff"), \
581 KEY_(")", "Go to the next file in the diff"), \
582 KEY_("{", "Go to the previous hunk in the diff"), \
583 KEY_("}", "Go to the next hunk in the diff"), \
584 KEY_("[", "Decrease the number of context lines"), \
585 KEY_("]", "Increase the number of context lines"), \
586 KEY_("w", "Toggle ignore whitespace-only changes in the diff"), \
587 \
588 KEYMAP_("Blame view", TOG_KEYMAP_BLAME), \
589 KEY_("Enter", "Display diff view of the selected line's commit"), \
590 KEY_("A", "Toggle diff algorithm between Myers and Patience"), \
591 KEY_("L", "Open log view for the currently selected annotated line"), \
592 KEY_("C", "Reload view with the previously blamed commit"), \
593 KEY_("c", "Reload view with the version of the file found in the" \
594 " selected line's commit"), \
595 KEY_("p", "Reload view with the version of the file found in the" \
596 " selected line's parent commit"), \
597 \
598 KEYMAP_("Tree view", TOG_KEYMAP_TREE), \
599 KEY_("Enter", "Enter selected directory or open blame view of the" \
600 " selected file"), \
601 KEY_("L", "Open log view for the selected entry"), \
602 KEY_("R", "Open ref view of all repository references"), \
603 KEY_("i", "Show object IDs for all tree entries"), \
604 KEY_("Backspace", "Return to the parent directory"), \
605 \
606 KEYMAP_("Ref view", TOG_KEYMAP_REF), \
607 KEY_("Enter", "Display log view of the selected reference"), \
608 KEY_("T", "Display tree view of the selected reference"), \
609 KEY_("i", "Toggle display of IDs for all non-symbolic references"), \
610 KEY_("m", "Toggle display of last modified date for each reference"), \
611 KEY_("o", "Toggle reference sort order (name -> timestamp)"), \
612 KEY_("C-l", "Reload view with all repository references")
613
614 struct tog_key_map {
615 const char *keys;
616 const char *info;
617 enum tog_keymap_type type;
618 };
619
620 /* curses io for tog regress */
621 struct tog_io {
622 FILE *cin;
623 FILE *cout;
624 FILE *f;
625 FILE *sdump;
626 int wait_for_ui;
627 } tog_io;
628 static int using_mock_io;
629
630 #define TOG_KEY_SCRDUMP SHRT_MIN
631
632 /*
633 * We implement two types of views: parent views and child views.
634 *
635 * The 'Tab' key switches focus between a parent view and its child view.
636 * Child views are shown side-by-side to their parent view, provided
637 * there is enough screen estate.
638 *
639 * When a new view is opened from within a parent view, this new view
640 * becomes a child view of the parent view, replacing any existing child.
641 *
642 * When a new view is opened from within a child view, this new view
643 * becomes a parent view which will obscure the views below until the
644 * user quits the new parent view by typing 'q'.
645 *
646 * This list of views contains parent views only.
647 * Child views are only pointed to by their parent view.
648 */
649 TAILQ_HEAD(tog_view_list_head, tog_view);
650
651 struct tog_view {
652 TAILQ_ENTRY(tog_view) entry;
653 WINDOW *window;
654 PANEL *panel;
655 int nlines, ncols, begin_y, begin_x; /* based on split height/width */
656 int resized_y, resized_x; /* begin_y/x based on user resizing */
657 int maxx, x; /* max column and current start column */
658 int lines, cols; /* copies of LINES and COLS */
659 int nscrolled, offset; /* lines scrolled and hsplit line offset */
660 int gline, hiline; /* navigate to and highlight this nG line */
661 int ch, count; /* current keymap and count prefix */
662 int resized; /* set when in a resize event */
663 int focussed; /* Only set on one parent or child view at a time. */
664 int dying;
665 struct tog_view *parent;
666 struct tog_view *child;
667
668 /*
669 * This flag is initially set on parent views when a new child view
670 * is created. It gets toggled when the 'Tab' key switches focus
671 * between parent and child.
672 * The flag indicates whether focus should be passed on to our child
673 * view if this parent view gets picked for focus after another parent
674 * view was closed. This prevents child views from losing focus in such
675 * situations.
676 */
677 int focus_child;
678
679 enum tog_view_mode mode;
680 /* type-specific state */
681 enum tog_view_type type;
682 union {
683 struct tog_diff_view_state diff;
684 struct tog_log_view_state log;
685 struct tog_blame_view_state blame;
686 struct tog_tree_view_state tree;
687 struct tog_ref_view_state ref;
688 struct tog_help_view_state help;
689 } state;
690
691 const struct got_error *(*show)(struct tog_view *);
692 const struct got_error *(*input)(struct tog_view **,
693 struct tog_view *, int);
694 const struct got_error *(*reset)(struct tog_view *);
695 const struct got_error *(*resize)(struct tog_view *, int);
696 const struct got_error *(*close)(struct tog_view *);
697
698 const struct got_error *(*search_start)(struct tog_view *);
699 const struct got_error *(*search_next)(struct tog_view *);
700 void (*search_setup)(struct tog_view *, FILE **, off_t **, size_t *,
701 int **, int **, int **, int **);
702 int search_started;
703 int searching;
704 #define TOG_SEARCH_FORWARD 1
705 #define TOG_SEARCH_BACKWARD 2
706 int search_next_done;
707 #define TOG_SEARCH_HAVE_MORE 1
708 #define TOG_SEARCH_NO_MORE 2
709 #define TOG_SEARCH_HAVE_NONE 3
710 regex_t regex;
711 regmatch_t regmatch;
712 const char *action;
713 };
714
715 static const struct got_error *open_diff_view(struct tog_view *,
716 struct got_object_id *, struct got_object_id *,
717 const char *, const char *, int, int, int, struct tog_view *,
718 struct got_repository *);
719 static const struct got_error *show_diff_view(struct tog_view *);
720 static const struct got_error *input_diff_view(struct tog_view **,
721 struct tog_view *, int);
722 static const struct got_error *reset_diff_view(struct tog_view *);
723 static const struct got_error* close_diff_view(struct tog_view *);
724 static const struct got_error *search_start_diff_view(struct tog_view *);
725 static void search_setup_diff_view(struct tog_view *, FILE **, off_t **,
726 size_t *, int **, int **, int **, int **);
727 static const struct got_error *search_next_view_match(struct tog_view *);
728
729 static const struct got_error *open_log_view(struct tog_view *,
730 struct got_object_id *, struct got_repository *,
731 const char *, const char *, int);
732 static const struct got_error * show_log_view(struct tog_view *);
733 static const struct got_error *input_log_view(struct tog_view **,
734 struct tog_view *, int);
735 static const struct got_error *resize_log_view(struct tog_view *, int);
736 static const struct got_error *close_log_view(struct tog_view *);
737 static const struct got_error *search_start_log_view(struct tog_view *);
738 static const struct got_error *search_next_log_view(struct tog_view *);
739
740 static const struct got_error *open_blame_view(struct tog_view *, char *,
741 struct got_object_id *, struct got_repository *);
742 static const struct got_error *show_blame_view(struct tog_view *);
743 static const struct got_error *input_blame_view(struct tog_view **,
744 struct tog_view *, int);
745 static const struct got_error *reset_blame_view(struct tog_view *);
746 static const struct got_error *close_blame_view(struct tog_view *);
747 static const struct got_error *search_start_blame_view(struct tog_view *);
748 static void search_setup_blame_view(struct tog_view *, FILE **, off_t **,
749 size_t *, int **, int **, int **, int **);
750
751 static const struct got_error *open_tree_view(struct tog_view *,
752 struct got_object_id *, const char *, struct got_repository *);
753 static const struct got_error *show_tree_view(struct tog_view *);
754 static const struct got_error *input_tree_view(struct tog_view **,
755 struct tog_view *, int);
756 static const struct got_error *close_tree_view(struct tog_view *);
757 static const struct got_error *search_start_tree_view(struct tog_view *);
758 static const struct got_error *search_next_tree_view(struct tog_view *);
759
760 static const struct got_error *open_ref_view(struct tog_view *,
761 struct got_repository *);
762 static const struct got_error *show_ref_view(struct tog_view *);
763 static const struct got_error *input_ref_view(struct tog_view **,
764 struct tog_view *, int);
765 static const struct got_error *close_ref_view(struct tog_view *);
766 static const struct got_error *search_start_ref_view(struct tog_view *);
767 static const struct got_error *search_next_ref_view(struct tog_view *);
768
769 static const struct got_error *open_help_view(struct tog_view *,
770 struct tog_view *);
771 static const struct got_error *show_help_view(struct tog_view *);
772 static const struct got_error *input_help_view(struct tog_view **,
773 struct tog_view *, int);
774 static const struct got_error *reset_help_view(struct tog_view *);
775 static const struct got_error* close_help_view(struct tog_view *);
776 static const struct got_error *search_start_help_view(struct tog_view *);
777 static void search_setup_help_view(struct tog_view *, FILE **, off_t **,
778 size_t *, int **, int **, int **, int **);
779
780 static volatile sig_atomic_t tog_sigwinch_received;
781 static volatile sig_atomic_t tog_sigpipe_received;
782 static volatile sig_atomic_t tog_sigcont_received;
783 static volatile sig_atomic_t tog_sigint_received;
784 static volatile sig_atomic_t tog_sigterm_received;
785
786 static void
787 tog_sigwinch(int signo)
788 {
789 tog_sigwinch_received = 1;
790 }
791
792 static void
793 tog_sigpipe(int signo)
794 {
795 tog_sigpipe_received = 1;
796 }
797
798 static void
799 tog_sigcont(int signo)
800 {
801 tog_sigcont_received = 1;
802 }
803
804 static void
805 tog_sigint(int signo)
806 {
807 tog_sigint_received = 1;
808 }
809
810 static void
811 tog_sigterm(int signo)
812 {
813 tog_sigterm_received = 1;
814 }
815
816 static int
817 tog_fatal_signal_received(void)
818 {
819 return (tog_sigpipe_received ||
820 tog_sigint_received || tog_sigterm_received);
821 }
822
823 static const struct got_error *
824 view_close(struct tog_view *view)
825 {
826 const struct got_error *err = NULL, *child_err = NULL;
827
828 if (view->child) {
829 child_err = view_close(view->child);
830 view->child = NULL;
831 }
832 if (view->close)
833 err = view->close(view);
834 if (view->panel)
835 del_panel(view->panel);
836 if (view->window)
837 delwin(view->window);
838 free(view);
839 return err ? err : child_err;
840 }
841
842 static struct tog_view *
843 view_open(int nlines, int ncols, int begin_y, int begin_x,
844 enum tog_view_type type)
845 {
846 struct tog_view *view = calloc(1, sizeof(*view));
847
848 if (view == NULL)
849 return NULL;
850
851 view->type = type;
852 view->lines = LINES;
853 view->cols = COLS;
854 view->nlines = nlines ? nlines : LINES - begin_y;
855 view->ncols = ncols ? ncols : COLS - begin_x;
856 view->begin_y = begin_y;
857 view->begin_x = begin_x;
858 view->window = newwin(nlines, ncols, begin_y, begin_x);
859 if (view->window == NULL) {
860 view_close(view);
861 return NULL;
862 }
863 view->panel = new_panel(view->window);
864 if (view->panel == NULL ||
865 set_panel_userptr(view->panel, view) != OK) {
866 view_close(view);
867 return NULL;
868 }
869
870 keypad(view->window, TRUE);
871 return view;
872 }
873
874 static int
875 view_split_begin_x(int begin_x)
876 {
877 if (begin_x > 0 || COLS < 120)
878 return 0;
879 return (COLS - MAX(COLS / 2, 80));
880 }
881
882 /* XXX Stub till we decide what to do. */
883 static int
884 view_split_begin_y(int lines)
885 {
886 return lines * HSPLIT_SCALE;
887 }
888
889 static const struct got_error *view_resize(struct tog_view *);
890
891 static const struct got_error *
892 view_splitscreen(struct tog_view *view)
893 {
894 const struct got_error *err = NULL;
895
896 if (!view->resized && view->mode == TOG_VIEW_SPLIT_HRZN) {
897 if (view->resized_y && view->resized_y < view->lines)
898 view->begin_y = view->resized_y;
899 else
900 view->begin_y = view_split_begin_y(view->nlines);
901 view->begin_x = 0;
902 } else if (!view->resized) {
903 if (view->resized_x && view->resized_x < view->cols - 1 &&
904 view->cols > 119)
905 view->begin_x = view->resized_x;
906 else
907 view->begin_x = view_split_begin_x(0);
908 view->begin_y = 0;
909 }
910 view->nlines = LINES - view->begin_y;
911 view->ncols = COLS - view->begin_x;
912 view->lines = LINES;
913 view->cols = COLS;
914 err = view_resize(view);
915 if (err)
916 return err;
917
918 if (view->parent && view->mode == TOG_VIEW_SPLIT_HRZN)
919 view->parent->nlines = view->begin_y;
920
921 if (mvwin(view->window, view->begin_y, view->begin_x) == ERR)
922 return got_error_from_errno("mvwin");
923
924 return NULL;
925 }
926
927 static const struct got_error *
928 view_fullscreen(struct tog_view *view)
929 {
930 const struct got_error *err = NULL;
931
932 view->begin_x = 0;
933 view->begin_y = view->resized ? view->begin_y : 0;
934 view->nlines = view->resized ? view->nlines : LINES;
935 view->ncols = COLS;
936 view->lines = LINES;
937 view->cols = COLS;
938 err = view_resize(view);
939 if (err)
940 return err;
941
942 if (mvwin(view->window, view->begin_y, view->begin_x) == ERR)
943 return got_error_from_errno("mvwin");
944
945 return NULL;
946 }
947
948 static int
949 view_is_parent_view(struct tog_view *view)
950 {
951 return view->parent == NULL;
952 }
953
954 static int
955 view_is_splitscreen(struct tog_view *view)
956 {
957 return view->begin_x > 0 || view->begin_y > 0;
958 }
959
960 static int
961 view_is_fullscreen(struct tog_view *view)
962 {
963 return view->nlines == LINES && view->ncols == COLS;
964 }
965
966 static int
967 view_is_hsplit_top(struct tog_view *view)
968 {
969 return view->mode == TOG_VIEW_SPLIT_HRZN && view->child &&
970 view_is_splitscreen(view->child);
971 }
972
973 static void
974 view_border(struct tog_view *view)
975 {
976 PANEL *panel;
977 const struct tog_view *view_above;
978
979 if (view->parent)
980 return view_border(view->parent);
981
982 panel = panel_above(view->panel);
983 if (panel == NULL)
984 return;
985
986 view_above = panel_userptr(panel);
987 if (view->mode == TOG_VIEW_SPLIT_HRZN)
988 mvwhline(view->window, view_above->begin_y - 1,
989 view->begin_x, ACS_HLINE, view->ncols);
990 else
991 mvwvline(view->window, view->begin_y, view_above->begin_x - 1,
992 ACS_VLINE, view->nlines);
993 }
994
995 static const struct got_error *view_init_hsplit(struct tog_view *, int);
996 static const struct got_error *request_log_commits(struct tog_view *);
997 static const struct got_error *offset_selection_down(struct tog_view *);
998 static void offset_selection_up(struct tog_view *);
999 static void view_get_split(struct tog_view *, int *, int *);
1000
1001 static const struct got_error *
1002 view_resize(struct tog_view *view)
1003 {
1004 const struct got_error *err = NULL;
1005 int dif, nlines, ncols;
1006
1007 dif = LINES - view->lines; /* line difference */
1008
1009 if (view->lines > LINES)
1010 nlines = view->nlines - (view->lines - LINES);
1011 else
1012 nlines = view->nlines + (LINES - view->lines);
1013 if (view->cols > COLS)
1014 ncols = view->ncols - (view->cols - COLS);
1015 else
1016 ncols = view->ncols + (COLS - view->cols);
1017
1018 if (view->child) {
1019 int hs = view->child->begin_y;
1020
1021 if (!view_is_fullscreen(view))
1022 view->child->begin_x = view_split_begin_x(view->begin_x);
1023 if (view->mode == TOG_VIEW_SPLIT_HRZN ||
1024 view->child->begin_x == 0) {
1025 ncols = COLS;
1026
1027 view_fullscreen(view->child);
1028 if (view->child->focussed)
1029 show_panel(view->child->panel);
1030 else
1031 show_panel(view->panel);
1032 } else {
1033 ncols = view->child->begin_x;
1034
1035 view_splitscreen(view->child);
1036 show_panel(view->child->panel);
1037 }
1038 /*
1039 * XXX This is ugly and needs to be moved into the above
1040 * logic but "works" for now and my attempts at moving it
1041 * break either 'tab' or 'F' key maps in horizontal splits.
1042 */
1043 if (hs) {
1044 err = view_splitscreen(view->child);
1045 if (err)
1046 return err;
1047 if (dif < 0) { /* top split decreased */
1048 err = offset_selection_down(view);
1049 if (err)
1050 return err;
1051 }
1052 view_border(view);
1053 update_panels();
1054 doupdate();
1055 show_panel(view->child->panel);
1056 nlines = view->nlines;
1057 }
1058 } else if (view->parent == NULL)
1059 ncols = COLS;
1060
1061 if (view->resize && dif > 0) {
1062 err = view->resize(view, dif);
1063 if (err)
1064 return err;
1065 }
1066
1067 if (wresize(view->window, nlines, ncols) == ERR)
1068 return got_error_from_errno("wresize");
1069 if (replace_panel(view->panel, view->window) == ERR)
1070 return got_error_from_errno("replace_panel");
1071 wclear(view->window);
1072
1073 view->nlines = nlines;
1074 view->ncols = ncols;
1075 view->lines = LINES;
1076 view->cols = COLS;
1077
1078 return NULL;
1079 }
1080
1081 static const struct got_error *
1082 resize_log_view(struct tog_view *view, int increase)
1083 {
1084 struct tog_log_view_state *s = &view->state.log;
1085 const struct got_error *err = NULL;
1086 int n = 0;
1087
1088 if (s->selected_entry)
1089 n = s->selected_entry->idx + view->lines - s->selected;
1090
1091 /*
1092 * Request commits to account for the increased
1093 * height so we have enough to populate the view.
1094 */
1095 if (s->commits->ncommits < n) {
1096 view->nscrolled = n - s->commits->ncommits + increase + 1;
1097 err = request_log_commits(view);
1098 }
1099
1100 return err;
1101 }
1102
1103 static void
1104 view_adjust_offset(struct tog_view *view, int n)
1105 {
1106 if (n == 0)
1107 return;
1108
1109 if (view->parent && view->parent->offset) {
1110 if (view->parent->offset + n >= 0)
1111 view->parent->offset += n;
1112 else
1113 view->parent->offset = 0;
1114 } else if (view->offset) {
1115 if (view->offset - n >= 0)
1116 view->offset -= n;
1117 else
1118 view->offset = 0;
1119 }
1120 }
1121
1122 static const struct got_error *
1123 view_resize_split(struct tog_view *view, int resize)
1124 {
1125 const struct got_error *err = NULL;
1126 struct tog_view *v = NULL;
1127
1128 if (view->parent)
1129 v = view->parent;
1130 else
1131 v = view;
1132
1133 if (!v->child || !view_is_splitscreen(v->child))
1134 return NULL;
1135
1136 v->resized = v->child->resized = resize; /* lock for resize event */
1137
1138 if (view->mode == TOG_VIEW_SPLIT_HRZN) {
1139 if (v->child->resized_y)
1140 v->child->begin_y = v->child->resized_y;
1141 if (view->parent)
1142 v->child->begin_y -= resize;
1143 else
1144 v->child->begin_y += resize;
1145 if (v->child->begin_y < 3) {
1146 view->count = 0;
1147 v->child->begin_y = 3;
1148 } else if (v->child->begin_y > LINES - 1) {
1149 view->count = 0;
1150 v->child->begin_y = LINES - 1;
1151 }
1152 v->ncols = COLS;
1153 v->child->ncols = COLS;
1154 view_adjust_offset(view, resize);
1155 err = view_init_hsplit(v, v->child->begin_y);
1156 if (err)
1157 return err;
1158 v->child->resized_y = v->child->begin_y;
1159 } else {
1160 if (v->child->resized_x)
1161 v->child->begin_x = v->child->resized_x;
1162 if (view->parent)
1163 v->child->begin_x -= resize;
1164 else
1165 v->child->begin_x += resize;
1166 if (v->child->begin_x < 11) {
1167 view->count = 0;
1168 v->child->begin_x = 11;
1169 } else if (v->child->begin_x > COLS - 1) {
1170 view->count = 0;
1171 v->child->begin_x = COLS - 1;
1172 }
1173 v->child->resized_x = v->child->begin_x;
1174 }
1175
1176 v->child->mode = v->mode;
1177 v->child->nlines = v->lines - v->child->begin_y;
1178 v->child->ncols = v->cols - v->child->begin_x;
1179 v->focus_child = 1;
1180
1181 err = view_fullscreen(v);
1182 if (err)
1183 return err;
1184 err = view_splitscreen(v->child);
1185 if (err)
1186 return err;
1187
1188 if (v->mode == TOG_VIEW_SPLIT_HRZN) {
1189 err = offset_selection_down(v->child);
1190 if (err)
1191 return err;
1192 }
1193
1194 if (v->resize)
1195 err = v->resize(v, 0);
1196 else if (v->child->resize)
1197 err = v->child->resize(v->child, 0);
1198
1199 v->resized = v->child->resized = 0;
1200
1201 return err;
1202 }
1203
1204 static void
1205 view_transfer_size(struct tog_view *dst, struct tog_view *src)
1206 {
1207 struct tog_view *v = src->child ? src->child : src;
1208
1209 dst->resized_x = v->resized_x;
1210 dst->resized_y = v->resized_y;
1211 }
1212
1213 static const struct got_error *
1214 view_close_child(struct tog_view *view)
1215 {
1216 const struct got_error *err = NULL;
1217
1218 if (view->child == NULL)
1219 return NULL;
1220
1221 err = view_close(view->child);
1222 view->child = NULL;
1223 return err;
1224 }
1225
1226 static const struct got_error *
1227 view_set_child(struct tog_view *view, struct tog_view *child)
1228 {
1229 const struct got_error *err = NULL;
1230
1231 view->child = child;
1232 child->parent = view;
1233
1234 err = view_resize(view);
1235 if (err)
1236 return err;
1237
1238 if (view->child->resized_x || view->child->resized_y)
1239 err = view_resize_split(view, 0);
1240
1241 return err;
1242 }
1243
1244 static const struct got_error *view_dispatch_request(struct tog_view **,
1245 struct tog_view *, enum tog_view_type, int, int);
1246
1247 static const struct got_error *
1248 view_request_new(struct tog_view **requested, struct tog_view *view,
1249 enum tog_view_type request)
1250 {
1251 struct tog_view *new_view = NULL;
1252 const struct got_error *err;
1253 int y = 0, x = 0;
1254
1255 *requested = NULL;
1256
1257 if (view_is_parent_view(view) && request != TOG_VIEW_HELP)
1258 view_get_split(view, &y, &x);
1259
1260 err = view_dispatch_request(&new_view, view, request, y, x);
1261 if (err)
1262 return err;
1263
1264 if (view_is_parent_view(view) && view->mode == TOG_VIEW_SPLIT_HRZN &&
1265 request != TOG_VIEW_HELP) {
1266 err = view_init_hsplit(view, y);
1267 if (err)
1268 return err;
1269 }
1270
1271 view->focussed = 0;
1272 new_view->focussed = 1;
1273 new_view->mode = view->mode;
1274 new_view->nlines = request == TOG_VIEW_HELP ?
1275 view->lines : view->lines - y;
1276
1277 if (view_is_parent_view(view) && request != TOG_VIEW_HELP) {
1278 view_transfer_size(new_view, view);
1279 err = view_close_child(view);
1280 if (err)
1281 return err;
1282 err = view_set_child(view, new_view);
1283 if (err)
1284 return err;
1285 view->focus_child = 1;
1286 } else
1287 *requested = new_view;
1288
1289 return NULL;
1290 }
1291
1292 static void
1293 tog_resizeterm(void)
1294 {
1295 int cols, lines;
1296 struct winsize size;
1297
1298 if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &size) < 0) {
1299 cols = 80; /* Default */
1300 lines = 24;
1301 } else {
1302 cols = size.ws_col;
1303 lines = size.ws_row;
1304 }
1305 resize_term(lines, cols);
1306 }
1307
1308 static const struct got_error *
1309 view_search_start(struct tog_view *view, int fast_refresh)
1310 {
1311 const struct got_error *err = NULL;
1312 struct tog_view *v = view;
1313 char pattern[1024];
1314 int ret;
1315
1316 if (view->search_started) {
1317 regfree(&view->regex);
1318 view->searching = 0;
1319 memset(&view->regmatch, 0, sizeof(view->regmatch));
1320 }
1321 view->search_started = 0;
1322
1323 if (view->nlines < 1)
1324 return NULL;
1325
1326 if (view_is_hsplit_top(view))
1327 v = view->child;
1328 else if (view->mode == TOG_VIEW_SPLIT_VERT && view->parent)
1329 v = view->parent;
1330
1331 mvwaddstr(v->window, v->nlines - 1, 0, "/");
1332 wclrtoeol(v->window);
1333
1334 nodelay(v->window, FALSE); /* block for search term input */
1335 nocbreak();
1336 echo();
1337 ret = wgetnstr(v->window, pattern, sizeof(pattern));
1338 wrefresh(v->window);
1339 cbreak();
1340 noecho();
1341 nodelay(v->window, TRUE);
1342 if (!fast_refresh && !using_mock_io)
1343 halfdelay(10);
1344 if (ret == ERR)
1345 return NULL;
1346
1347 if (regcomp(&view->regex, pattern, REG_EXTENDED | REG_NEWLINE) == 0) {
1348 err = view->search_start(view);
1349 if (err) {
1350 regfree(&view->regex);
1351 return err;
1352 }
1353 view->search_started = 1;
1354 view->searching = TOG_SEARCH_FORWARD;
1355 view->search_next_done = 0;
1356 view->search_next(view);
1357 }
1358
1359 return NULL;
1360 }
1361
1362 /* Switch split mode. If view is a parent or child, draw the new splitscreen. */
1363 static const struct got_error *
1364 switch_split(struct tog_view *view)
1365 {
1366 const struct got_error *err = NULL;
1367 struct tog_view *v = NULL;
1368
1369 if (view->parent)
1370 v = view->parent;
1371 else
1372 v = view;
1373
1374 if (v->mode == TOG_VIEW_SPLIT_HRZN)
1375 v->mode = TOG_VIEW_SPLIT_VERT;
1376 else
1377 v->mode = TOG_VIEW_SPLIT_HRZN;
1378
1379 if (!v->child)
1380 return NULL;
1381 else if (v->mode == TOG_VIEW_SPLIT_VERT && v->cols < 120)
1382 v->mode = TOG_VIEW_SPLIT_NONE;
1383
1384 view_get_split(v, &v->child->begin_y, &v->child->begin_x);
1385 if (v->mode == TOG_VIEW_SPLIT_HRZN && v->child->resized_y)
1386 v->child->begin_y = v->child->resized_y;
1387 else if (v->mode == TOG_VIEW_SPLIT_VERT && v->child->resized_x)
1388 v->child->begin_x = v->child->resized_x;
1389
1390
1391 if (v->mode == TOG_VIEW_SPLIT_HRZN) {
1392 v->ncols = COLS;
1393 v->child->ncols = COLS;
1394 v->child->nscrolled = LINES - v->child->nlines;
1395
1396 err = view_init_hsplit(v, v->child->begin_y);
1397 if (err)
1398 return err;
1399 }
1400 v->child->mode = v->mode;
1401 v->child->nlines = v->lines - v->child->begin_y;
1402 v->focus_child = 1;
1403
1404 err = view_fullscreen(v);
1405 if (err)
1406 return err;
1407 err = view_splitscreen(v->child);
1408 if (err)
1409 return err;
1410
1411 if (v->mode == TOG_VIEW_SPLIT_NONE)
1412 v->mode = TOG_VIEW_SPLIT_VERT;
1413 if (v->mode == TOG_VIEW_SPLIT_HRZN) {
1414 err = offset_selection_down(v);
1415 if (err)
1416 return err;
1417 err = offset_selection_down(v->child);
1418 if (err)
1419 return err;
1420 } else {
1421 offset_selection_up(v);
1422 offset_selection_up(v->child);
1423 }
1424 if (v->resize)
1425 err = v->resize(v, 0);
1426 else if (v->child->resize)
1427 err = v->child->resize(v->child, 0);
1428
1429 return err;
1430 }
1431
1432 /*
1433 * Strip trailing whitespace from str starting at byte *n;
1434 * if *n < 0, use strlen(str). Return new str length in *n.
1435 */
1436 static void
1437 strip_trailing_ws(char *str, int *n)
1438 {
1439 size_t x = *n;
1440
1441 if (str == NULL || *str == '\0')
1442 return;
1443
1444 if (x < 0)
1445 x = strlen(str);
1446
1447 while (x-- > 0 && isspace((unsigned char)str[x]))
1448 str[x] = '\0';
1449
1450 *n = x + 1;
1451 }
1452
1453 /*
1454 * Extract visible substring of line y from the curses screen
1455 * and strip trailing whitespace. If vline is set, overwrite
1456 * line[vline] with '|' because the ACS_VLINE character is
1457 * written out as 'x'. Write the line to file f.
1458 */
1459 static const struct got_error *
1460 view_write_line(FILE *f, int y, int vline)
1461 {
1462 char line[COLS * MB_LEN_MAX]; /* allow for multibyte chars */
1463 int r, w;
1464
1465 r = mvwinnstr(curscr, y, 0, line, sizeof(line));
1466 if (r == ERR)
1467 return got_error_fmt(GOT_ERR_RANGE,
1468 "failed to extract line %d", y);
1469
1470 /*
1471 * In some views, lines are padded with blanks to COLS width.
1472 * Strip them so we can diff without the -b flag when testing.
1473 */
1474 strip_trailing_ws(line, &r);
1475
1476 if (vline > 0)
1477 line[vline] = '|';
1478
1479 w = fprintf(f, "%s\n", line);
1480 if (w != r + 1) /* \n */
1481 return got_ferror(f, GOT_ERR_IO);
1482
1483 return NULL;
1484 }
1485
1486 /*
1487 * Capture the visible curses screen by writing each line to the
1488 * file at the path set via the TOG_SCR_DUMP environment variable.
1489 */
1490 static const struct got_error *
1491 screendump(struct tog_view *view)
1492 {
1493 const struct got_error *err;
1494 int i;
1495
1496 err = got_opentemp_truncate(tog_io.sdump);
1497 if (err)
1498 return err;
1499
1500 if ((view->child && view->child->begin_x) ||
1501 (view->parent && view->begin_x)) {
1502 int ncols = view->child ? view->ncols : view->parent->ncols;
1503
1504 /* vertical splitscreen */
1505 for (i = 0; i < view->nlines; ++i) {
1506 err = view_write_line(tog_io.sdump, i, ncols - 1);
1507 if (err)
1508 goto done;
1509 }
1510 } else {
1511 int hline = 0;
1512
1513 /* fullscreen or horizontal splitscreen */
1514 if ((view->child && view->child->begin_y) ||
1515 (view->parent && view->begin_y)) /* hsplit */
1516 hline = view->child ?
1517 view->child->begin_y : view->begin_y;
1518
1519 for (i = 0; i < view->lines; i++) {
1520 if (hline && i == hline - 1) {
1521 int c;
1522
1523 /* ACS_HLINE writes out as 'q', overwrite it */
1524 for (c = 0; c < view->cols; ++c)
1525 fputc('-', tog_io.sdump);
1526 fputc('\n', tog_io.sdump);
1527 continue;
1528 }
1529
1530 err = view_write_line(tog_io.sdump, i, 0);
1531 if (err)
1532 goto done;
1533 }
1534 }
1535
1536 done:
1537 return err;
1538 }
1539
1540 /*
1541 * Compute view->count from numeric input. Assign total to view->count and
1542 * return first non-numeric key entered.
1543 */
1544 static int
1545 get_compound_key(struct tog_view *view, int c)
1546 {
1547 struct tog_view *v = view;
1548 int x, n = 0;
1549
1550 if (view_is_hsplit_top(view))
1551 v = view->child;
1552 else if (view->mode == TOG_VIEW_SPLIT_VERT && view->parent)
1553 v = view->parent;
1554
1555 view->count = 0;
1556 cbreak(); /* block for input */
1557 nodelay(view->window, FALSE);
1558 wmove(v->window, v->nlines - 1, 0);
1559 wclrtoeol(v->window);
1560 waddch(v->window, ':');
1561
1562 do {
1563 x = getcurx(v->window);
1564 if (x != ERR && x < view->ncols) {
1565 waddch(v->window, c);
1566 wrefresh(v->window);
1567 }
1568
1569 /*
1570 * Don't overflow. Max valid request should be the greatest
1571 * between the longest and total lines; cap at 10 million.
1572 */
1573 if (n >= 9999999)
1574 n = 9999999;
1575 else
1576 n = n * 10 + (c - '0');
1577 } while (((c = wgetch(view->window))) >= '0' && c <= '9' && c != ERR);
1578
1579 if (c == 'G' || c == 'g') { /* nG key map */
1580 view->gline = view->hiline = n;
1581 n = 0;
1582 c = 0;
1583 }
1584
1585 /* Massage excessive or inapplicable values at the input handler. */
1586 view->count = n;
1587
1588 return c;
1589 }
1590
1591 static void
1592 action_report(struct tog_view *view)
1593 {
1594 struct tog_view *v = view;
1595
1596 if (view_is_hsplit_top(view))
1597 v = view->child;
1598 else if (view->mode == TOG_VIEW_SPLIT_VERT && view->parent)
1599 v = view->parent;
1600
1601 wmove(v->window, v->nlines - 1, 0);
1602 wclrtoeol(v->window);
1603 wprintw(v->window, ":%s", view->action);
1604 wrefresh(v->window);
1605
1606 /*
1607 * Clear action status report. Only clear in blame view
1608 * once annotating is complete, otherwise it's too fast.
1609 */
1610 if (view->type == TOG_VIEW_BLAME) {
1611 if (view->state.blame.blame_complete)
1612 view->action = NULL;
1613 } else
1614 view->action = NULL;
1615 }
1616
1617 /*
1618 * Read the next line from the test script and assign
1619 * key instruction to *ch. If at EOF, set the *done flag.
1620 */
1621 static const struct got_error *
1622 tog_read_script_key(FILE *script, struct tog_view *view, int *ch, int *done)
1623 {
1624 const struct got_error *err = NULL;
1625 char *line = NULL;
1626 size_t linesz = 0;
1627
1628 if (view->count && --view->count) {
1629 *ch = view->ch;
1630 return NULL;
1631 } else
1632 *ch = -1;
1633
1634 if (getline(&line, &linesz, script) == -1) {
1635 if (feof(script)) {
1636 *done = 1;
1637 goto done;
1638 } else {
1639 err = got_ferror(script, GOT_ERR_IO);
1640 goto done;
1641 }
1642 }
1643
1644 if (strncasecmp(line, "WAIT_FOR_UI", 11) == 0)
1645 tog_io.wait_for_ui = 1;
1646 else if (strncasecmp(line, "KEY_ENTER", 9) == 0)
1647 *ch = KEY_ENTER;
1648 else if (strncasecmp(line, "KEY_RIGHT", 9) == 0)
1649 *ch = KEY_RIGHT;
1650 else if (strncasecmp(line, "KEY_LEFT", 8) == 0)
1651 *ch = KEY_LEFT;
1652 else if (strncasecmp(line, "KEY_DOWN", 8) == 0)
1653 *ch = KEY_DOWN;
1654 else if (strncasecmp(line, "KEY_UP", 6) == 0)
1655 *ch = KEY_UP;
1656 else if (strncasecmp(line, "TAB", 3) == 0)
1657 *ch = '\t';
1658 else if (strncasecmp(line, "SCREENDUMP", 10) == 0)
1659 *ch = TOG_KEY_SCRDUMP;
1660 else if (isdigit((unsigned char)*line)) {
1661 char *t = line;
1662
1663 while (isdigit((unsigned char)*t))
1664 ++t;
1665 view->ch = *ch = *t;
1666 *t = '\0';
1667 /* ignore error, view->count is 0 if instruction is invalid */
1668 view->count = strtonum(line, 0, INT_MAX, NULL);
1669 } else
1670 *ch = *line;
1671
1672 done:
1673 free(line);
1674 return err;
1675 }
1676
1677 static const struct got_error *
1678 view_input(struct tog_view **new, int *done, struct tog_view *view,
1679 struct tog_view_list_head *views, int fast_refresh)
1680 {
1681 const struct got_error *err = NULL;
1682 struct tog_view *v;
1683 int ch, errcode;
1684
1685 *new = NULL;
1686
1687 if (view->action)
1688 action_report(view);
1689
1690 /* Clear "no matches" indicator. */
1691 if (view->search_next_done == TOG_SEARCH_NO_MORE ||
1692 view->search_next_done == TOG_SEARCH_HAVE_NONE) {
1693 view->search_next_done = TOG_SEARCH_HAVE_MORE;
1694 view->count = 0;
1695 }
1696
1697 if (view->searching && !view->search_next_done) {
1698 errcode = pthread_mutex_unlock(&tog_mutex);
1699 if (errcode)
1700 return got_error_set_errno(errcode,
1701 "pthread_mutex_unlock");
1702 sched_yield();
1703 errcode = pthread_mutex_lock(&tog_mutex);
1704 if (errcode)
1705 return got_error_set_errno(errcode,
1706 "pthread_mutex_lock");
1707 view->search_next(view);
1708 return NULL;
1709 }
1710
1711 /* Allow threads to make progress while we are waiting for input. */
1712 errcode = pthread_mutex_unlock(&tog_mutex);
1713 if (errcode)
1714 return got_error_set_errno(errcode, "pthread_mutex_unlock");
1715
1716 if (using_mock_io) {
1717 err = tog_read_script_key(tog_io.f, view, &ch, done);
1718 if (err) {
1719 errcode = pthread_mutex_lock(&tog_mutex);
1720 return err;
1721 }
1722 } else if (view->count && --view->count) {
1723 cbreak();
1724 nodelay(view->window, TRUE);
1725 ch = wgetch(view->window);
1726 /* let C-g or backspace abort unfinished count */
1727 if (ch == CTRL('g') || ch == KEY_BACKSPACE)
1728 view->count = 0;
1729 else
1730 ch = view->ch;
1731 } else {
1732 ch = wgetch(view->window);
1733 if (ch >= '1' && ch <= '9')
1734 view->ch = ch = get_compound_key(view, ch);
1735 }
1736 if (view->hiline && ch != ERR && ch != 0)
1737 view->hiline = 0; /* key pressed, clear line highlight */
1738 nodelay(view->window, TRUE);
1739 errcode = pthread_mutex_lock(&tog_mutex);
1740 if (errcode)
1741 return got_error_set_errno(errcode, "pthread_mutex_lock");
1742
1743 if (tog_sigwinch_received || tog_sigcont_received) {
1744 tog_resizeterm();
1745 tog_sigwinch_received = 0;
1746 tog_sigcont_received = 0;
1747 TAILQ_FOREACH(v, views, entry) {
1748 err = view_resize(v);
1749 if (err)
1750 return err;
1751 err = v->input(new, v, KEY_RESIZE);
1752 if (err)
1753 return err;
1754 if (v->child) {
1755 err = view_resize(v->child);
1756 if (err)
1757 return err;
1758 err = v->child->input(new, v->child,
1759 KEY_RESIZE);
1760 if (err)
1761 return err;
1762 if (v->child->resized_x || v->child->resized_y) {
1763 err = view_resize_split(v, 0);
1764 if (err)
1765 return err;
1766 }
1767 }
1768 }
1769 }
1770
1771 switch (ch) {
1772 case '?':
1773 case 'H':
1774 case KEY_F(1):
1775 if (view->type == TOG_VIEW_HELP)
1776 err = view->reset(view);
1777 else
1778 err = view_request_new(new, view, TOG_VIEW_HELP);
1779 break;
1780 case '\t':
1781 view->count = 0;
1782 if (view->child) {
1783 view->focussed = 0;
1784 view->child->focussed = 1;
1785 view->focus_child = 1;
1786 } else if (view->parent) {
1787 view->focussed = 0;
1788 view->parent->focussed = 1;
1789 view->parent->focus_child = 0;
1790 if (!view_is_splitscreen(view)) {
1791 if (view->parent->resize) {
1792 err = view->parent->resize(view->parent,
1793 0);
1794 if (err)
1795 return err;
1796 }
1797 offset_selection_up(view->parent);
1798 err = view_fullscreen(view->parent);
1799 if (err)
1800 return err;
1801 }
1802 }
1803 break;
1804 case 'q':
1805 if (view->parent && view->mode == TOG_VIEW_SPLIT_HRZN) {
1806 if (view->parent->resize) {
1807 /* might need more commits to fill fullscreen */
1808 err = view->parent->resize(view->parent, 0);
1809 if (err)
1810 break;
1811 }
1812 offset_selection_up(view->parent);
1813 }
1814 err = view->input(new, view, ch);
1815 view->dying = 1;
1816 break;
1817 case 'Q':
1818 *done = 1;
1819 break;
1820 case 'F':
1821 view->count = 0;
1822 if (view_is_parent_view(view)) {
1823 if (view->child == NULL)
1824 break;
1825 if (view_is_splitscreen(view->child)) {
1826 view->focussed = 0;
1827 view->child->focussed = 1;
1828 err = view_fullscreen(view->child);
1829 } else {
1830 err = view_splitscreen(view->child);
1831 if (!err)
1832 err = view_resize_split(view, 0);
1833 }
1834 if (err)
1835 break;
1836 err = view->child->input(new, view->child,
1837 KEY_RESIZE);
1838 } else {
1839 if (view_is_splitscreen(view)) {
1840 view->parent->focussed = 0;
1841 view->focussed = 1;
1842 err = view_fullscreen(view);
1843 } else {
1844 err = view_splitscreen(view);
1845 if (!err && view->mode != TOG_VIEW_SPLIT_HRZN)
1846 err = view_resize(view->parent);
1847 if (!err)
1848 err = view_resize_split(view, 0);
1849 }
1850 if (err)
1851 break;
1852 err = view->input(new, view, KEY_RESIZE);
1853 }
1854 if (err)
1855 break;
1856 if (view->resize) {
1857 err = view->resize(view, 0);
1858 if (err)
1859 break;
1860 }
1861 if (view->parent) {
1862 if (view->parent->resize) {
1863 err = view->parent->resize(view->parent, 0);
1864 if (err != NULL)
1865 break;
1866 }
1867 err = offset_selection_down(view->parent);
1868 if (err != NULL)
1869 break;
1870 }
1871 err = offset_selection_down(view);
1872 break;
1873 case 'S':
1874 view->count = 0;
1875 err = switch_split(view);
1876 break;
1877 case '-':
1878 err = view_resize_split(view, -1);
1879 break;
1880 case '+':
1881 err = view_resize_split(view, 1);
1882 break;
1883 case KEY_RESIZE:
1884 break;
1885 case '/':
1886 view->count = 0;
1887 if (view->search_start)
1888 view_search_start(view, fast_refresh);
1889 else
1890 err = view->input(new, view, ch);
1891 break;
1892 case 'N':
1893 case 'n':
1894 if (view->search_started && view->search_next) {
1895 view->searching = (ch == 'n' ?
1896 TOG_SEARCH_FORWARD : TOG_SEARCH_BACKWARD);
1897 view->search_next_done = 0;
1898 view->search_next(view);
1899 } else
1900 err = view->input(new, view, ch);
1901 break;
1902 case 'A':
1903 if (tog_diff_algo == GOT_DIFF_ALGORITHM_MYERS) {
1904 tog_diff_algo = GOT_DIFF_ALGORITHM_PATIENCE;
1905 view->action = "Patience diff algorithm";
1906 } else {
1907 tog_diff_algo = GOT_DIFF_ALGORITHM_MYERS;
1908 view->action = "Myers diff algorithm";
1909 }
1910 TAILQ_FOREACH(v, views, entry) {
1911 if (v->reset) {
1912 err = v->reset(v);
1913 if (err)
1914 return err;
1915 }
1916 if (v->child && v->child->reset) {
1917 err = v->child->reset(v->child);
1918 if (err)
1919 return err;
1920 }
1921 }
1922 break;
1923 case TOG_KEY_SCRDUMP:
1924 err = screendump(view);
1925 break;
1926 default:
1927 err = view->input(new, view, ch);
1928 break;
1929 }
1930
1931 return err;
1932 }
1933
1934 static int
1935 view_needs_focus_indication(struct tog_view *view)
1936 {
1937 if (view_is_parent_view(view)) {
1938 if (view->child == NULL || view->child->focussed)
1939 return 0;
1940 if (!view_is_splitscreen(view->child))
1941 return 0;
1942 } else if (!view_is_splitscreen(view))
1943 return 0;
1944
1945 return view->focussed;
1946 }
1947
1948 static const struct got_error *
1949 tog_io_close(void)
1950 {
1951 const struct got_error *err = NULL;
1952
1953 if (tog_io.cin && fclose(tog_io.cin) == EOF)
1954 err = got_ferror(tog_io.cin, GOT_ERR_IO);
1955 if (tog_io.cout && fclose(tog_io.cout) == EOF && err == NULL)
1956 err = got_ferror(tog_io.cout, GOT_ERR_IO);
1957 if (tog_io.f && fclose(tog_io.f) == EOF && err == NULL)
1958 err = got_ferror(tog_io.f, GOT_ERR_IO);
1959 if (tog_io.sdump && fclose(tog_io.sdump) == EOF && err == NULL)
1960 err = got_ferror(tog_io.sdump, GOT_ERR_IO);
1961
1962 return err;
1963 }
1964
1965 static const struct got_error *
1966 view_loop(struct tog_view *view)
1967 {
1968 const struct got_error *err = NULL;
1969 struct tog_view_list_head views;
1970 struct tog_view *new_view;
1971 char *mode;
1972 int fast_refresh = 10;
1973 int done = 0, errcode;
1974
1975 mode = getenv("TOG_VIEW_SPLIT_MODE");
1976 if (!mode || !(*mode == 'h' || *mode == 'H'))
1977 view->mode = TOG_VIEW_SPLIT_VERT;
1978 else
1979 view->mode = TOG_VIEW_SPLIT_HRZN;
1980
1981 errcode = pthread_mutex_lock(&tog_mutex);
1982 if (errcode)
1983 return got_error_set_errno(errcode, "pthread_mutex_lock");
1984
1985 TAILQ_INIT(&views);
1986 TAILQ_INSERT_HEAD(&views, view, entry);
1987
1988 view->focussed = 1;
1989 err = view->show(view);
1990 if (err)
1991 return err;
1992 update_panels();
1993 doupdate();
1994 while (!TAILQ_EMPTY(&views) && !done && !tog_thread_error &&
1995 !tog_fatal_signal_received()) {
1996 /* Refresh fast during initialization, then become slower. */
1997 if (fast_refresh && --fast_refresh == 0 && !using_mock_io)
1998 halfdelay(10); /* switch to once per second */
1999
2000 err = view_input(&new_view, &done, view, &views, fast_refresh);
2001 if (err)
2002 break;
2003
2004 if (view->dying && view == TAILQ_FIRST(&views) &&
2005 TAILQ_NEXT(view, entry) == NULL)
2006 done = 1;
2007 if (done) {
2008 struct tog_view *v;
2009
2010 /*
2011 * When we quit, scroll the screen up a single line
2012 * so we don't lose any information.
2013 */
2014 TAILQ_FOREACH(v, &views, entry) {
2015 wmove(v->window, 0, 0);
2016 wdeleteln(v->window);
2017 wnoutrefresh(v->window);
2018 if (v->child && !view_is_fullscreen(v)) {
2019 wmove(v->child->window, 0, 0);
2020 wdeleteln(v->child->window);
2021 wnoutrefresh(v->child->window);
2022 }
2023 }
2024 doupdate();
2025 }
2026
2027 if (view->dying) {
2028 struct tog_view *v, *prev = NULL;
2029
2030 if (view_is_parent_view(view))
2031 prev = TAILQ_PREV(view, tog_view_list_head,
2032 entry);
2033 else if (view->parent)
2034 prev = view->parent;
2035
2036 if (view->parent) {
2037 view->parent->child = NULL;
2038 view->parent->focus_child = 0;
2039 /* Restore fullscreen line height. */
2040 view->parent->nlines = view->parent->lines;
2041 err = view_resize(view->parent);
2042 if (err)
2043 break;
2044 /* Make resized splits persist. */
2045 view_transfer_size(view->parent, view);
2046 } else
2047 TAILQ_REMOVE(&views, view, entry);
2048
2049 err = view_close(view);
2050 if (err)
2051 goto done;
2052
2053 view = NULL;
2054 TAILQ_FOREACH(v, &views, entry) {
2055 if (v->focussed)
2056 break;
2057 }
2058 if (view == NULL && new_view == NULL) {
2059 /* No view has focus. Try to pick one. */
2060 if (prev)
2061 view = prev;
2062 else if (!TAILQ_EMPTY(&views)) {
2063 view = TAILQ_LAST(&views,
2064 tog_view_list_head);
2065 }
2066 if (view) {
2067 if (view->focus_child) {
2068 view->child->focussed = 1;
2069 view = view->child;
2070 } else
2071 view->focussed = 1;
2072 }
2073 }
2074 }
2075 if (new_view) {
2076 struct tog_view *v, *t;
2077 /* Only allow one parent view per type. */
2078 TAILQ_FOREACH_SAFE(v, &views, entry, t) {
2079 if (v->type != new_view->type)
2080 continue;
2081 TAILQ_REMOVE(&views, v, entry);
2082 err = view_close(v);
2083 if (err)
2084 goto done;
2085 break;
2086 }
2087 TAILQ_INSERT_TAIL(&views, new_view, entry);
2088 view = new_view;
2089 }
2090 if (view && !done) {
2091 if (view_is_parent_view(view)) {
2092 if (view->child && view->child->focussed)
2093 view = view->child;
2094 } else {
2095 if (view->parent && view->parent->focussed)
2096 view = view->parent;
2097 }
2098 show_panel(view->panel);
2099 if (view->child && view_is_splitscreen(view->child))
2100 show_panel(view->child->panel);
2101 if (view->parent && view_is_splitscreen(view)) {
2102 err = view->parent->show(view->parent);
2103 if (err)
2104 goto done;
2105 }
2106 err = view->show(view);
2107 if (err)
2108 goto done;
2109 if (view->child) {
2110 err = view->child->show(view->child);
2111 if (err)
2112 goto done;
2113 }
2114 update_panels();
2115 doupdate();
2116 }
2117 }
2118 done:
2119 while (!TAILQ_EMPTY(&views)) {
2120 const struct got_error *close_err;
2121 view = TAILQ_FIRST(&views);
2122 TAILQ_REMOVE(&views, view, entry);
2123 close_err = view_close(view);
2124 if (close_err && err == NULL)
2125 err = close_err;
2126 }
2127
2128 errcode = pthread_mutex_unlock(&tog_mutex);
2129 if (errcode && err == NULL)
2130 err = got_error_set_errno(errcode, "pthread_mutex_unlock");
2131
2132 return err;
2133 }
2134
2135 __dead static void
2136 usage_log(void)
2137 {
2138 endwin();
2139 fprintf(stderr,
2140 "usage: %s log [-b] [-c commit] [-r repository-path] [path]\n",
2141 getprogname());
2142 exit(1);
2143 }
2144
2145 /* Create newly allocated wide-character string equivalent to a byte string. */
2146 static const struct got_error *
2147 mbs2ws(wchar_t **ws, size_t *wlen, const char *s)
2148 {
2149 char *vis = NULL;
2150 const struct got_error *err = NULL;
2151
2152 *ws = NULL;
2153 *wlen = mbstowcs(NULL, s, 0);
2154 if (*wlen == (size_t)-1) {
2155 int vislen;
2156 if (errno != EILSEQ)
2157 return got_error_from_errno("mbstowcs");
2158
2159 /* byte string invalid in current encoding; try to "fix" it */
2160 err = got_mbsavis(&vis, &vislen, s);
2161 if (err)
2162 return err;
2163 *wlen = mbstowcs(NULL, vis, 0);
2164 if (*wlen == (size_t)-1) {
2165 err = got_error_from_errno("mbstowcs"); /* give up */
2166 goto done;
2167 }
2168 }
2169
2170 *ws = calloc(*wlen + 1, sizeof(**ws));
2171 if (*ws == NULL) {
2172 err = got_error_from_errno("calloc");
2173 goto done;
2174 }
2175
2176 if (mbstowcs(*ws, vis ? vis : s, *wlen) != *wlen)
2177 err = got_error_from_errno("mbstowcs");
2178 done:
2179 free(vis);
2180 if (err) {
2181 free(*ws);
2182 *ws = NULL;
2183 *wlen = 0;
2184 }
2185 return err;
2186 }
2187
2188 static const struct got_error *
2189 expand_tab(char **ptr, const char *src)
2190 {
2191 char *dst;
2192 size_t len, n, idx = 0, sz = 0;
2193
2194 *ptr = NULL;
2195 n = len = strlen(src);
2196 dst = malloc(n + 1);
2197 if (dst == NULL)
2198 return got_error_from_errno("malloc");
2199
2200 while (idx < len && src[idx]) {
2201 const char c = src[idx];
2202
2203 if (c == '\t') {
2204 size_t nb = TABSIZE - sz % TABSIZE;
2205 char *p;
2206
2207 p = realloc(dst, n + nb);
2208 if (p == NULL) {
2209 free(dst);
2210 return got_error_from_errno("realloc");
2211
2212 }
2213 dst = p;
2214 n += nb;
2215 memset(dst + sz, ' ', nb);
2216 sz += nb;
2217 } else
2218 dst[sz++] = src[idx];
2219 ++idx;
2220 }
2221
2222 dst[sz] = '\0';
2223 *ptr = dst;
2224 return NULL;
2225 }
2226
2227 /*
2228 * Advance at most n columns from wline starting at offset off.
2229 * Return the index to the first character after the span operation.
2230 * Return the combined column width of all spanned wide characters in
2231 * *rcol.
2232 */
2233 static int
2234 span_wline(int *rcol, int off, wchar_t *wline, int n, int col_tab_align)
2235 {
2236 int width, i, cols = 0;
2237
2238 if (n == 0) {
2239 *rcol = cols;
2240 return off;
2241 }
2242
2243 for (i = off; wline[i] != L'\0'; ++i) {
2244 if (wline[i] == L'\t')
2245 width = TABSIZE - ((cols + col_tab_align) % TABSIZE);
2246 else
2247 width = wcwidth(wline[i]);
2248
2249 if (width == -1) {
2250 width = 1;
2251 wline[i] = L'.';
2252 }
2253
2254 if (cols + width > n)
2255 break;
2256 cols += width;
2257 }
2258
2259 *rcol = cols;
2260 return i;
2261 }
2262
2263 /*
2264 * Format a line for display, ensuring that it won't overflow a width limit.
2265 * With scrolling, the width returned refers to the scrolled version of the
2266 * line, which starts at (*wlinep)[*scrollxp]. The caller must free *wlinep.
2267 */
2268 static const struct got_error *
2269 format_line(wchar_t **wlinep, int *widthp, int *scrollxp,
2270 const char *line, int nscroll, int wlimit, int col_tab_align, int expand)
2271 {
2272 const struct got_error *err = NULL;
2273 int cols;
2274 wchar_t *wline = NULL;
2275 char *exstr = NULL;
2276 size_t wlen;
2277 int i, scrollx;
2278
2279 *wlinep = NULL;
2280 *widthp = 0;
2281
2282 if (expand) {
2283 err = expand_tab(&exstr, line);
2284 if (err)
2285 return err;
2286 }
2287
2288 err = mbs2ws(&wline, &wlen, expand ? exstr : line);
2289 free(exstr);
2290 if (err)
2291 return err;
2292
2293 scrollx = span_wline(&cols, 0, wline, nscroll, col_tab_align);
2294
2295 if (wlen > 0 && wline[wlen - 1] == L'\n') {
2296 wline[wlen - 1] = L'\0';
2297 wlen--;
2298 }
2299 if (wlen > 0 && wline[wlen - 1] == L'\r') {
2300 wline[wlen - 1] = L'\0';
2301 wlen--;
2302 }
2303
2304 i = span_wline(&cols, scrollx, wline, wlimit, col_tab_align);
2305 wline[i] = L'\0';
2306
2307 if (widthp)
2308 *widthp = cols;
2309 if (scrollxp)
2310 *scrollxp = scrollx;
2311 if (err)
2312 free(wline);
2313 else
2314 *wlinep = wline;
2315 return err;
2316 }
2317
2318 static const struct got_error*
2319 build_refs_str(char **refs_str, struct got_reflist_head *refs,
2320 struct got_object_id *id, struct got_repository *repo)
2321 {
2322 static const struct got_error *err = NULL;
2323 struct got_reflist_entry *re;
2324 char *s;
2325 const char *name;
2326
2327 *refs_str = NULL;
2328
2329 if (refs == NULL)
2330 return NULL;
2331
2332 TAILQ_FOREACH(re, refs, entry) {
2333 struct got_tag_object *tag = NULL;
2334 struct got_object_id *ref_id;
2335 int cmp;
2336
2337 name = got_ref_get_name(re->ref);
2338 if (strcmp(name, GOT_REF_HEAD) == 0)
2339 continue;
2340 if (strncmp(name, "refs/", 5) == 0)
2341 name += 5;
2342 if (strncmp(name, "got/", 4) == 0)
2343 continue;
2344 if (strncmp(name, "heads/", 6) == 0)
2345 name += 6;
2346 if (strncmp(name, "remotes/", 8) == 0) {
2347 name += 8;
2348 s = strstr(name, "/" GOT_REF_HEAD);
2349 if (s != NULL && strcmp(s, "/" GOT_REF_HEAD) == 0)
2350 continue;
2351 }
2352 err = got_ref_resolve(&ref_id, repo, re->ref);
2353 if (err)
2354 break;
2355 if (strncmp(name, "tags/", 5) == 0) {
2356 err = got_object_open_as_tag(&tag, repo, ref_id);
2357 if (err) {
2358 if (err->code != GOT_ERR_OBJ_TYPE) {
2359 free(ref_id);
2360 break;
2361 }
2362 /* Ref points at something other than a tag. */
2363 err = NULL;
2364 tag = NULL;
2365 }
2366 }
2367 cmp = got_object_id_cmp(tag ?
2368 got_object_tag_get_object_id(tag) : ref_id, id);
2369 free(ref_id);
2370 if (tag)
2371 got_object_tag_close(tag);
2372 if (cmp != 0)
2373 continue;
2374 s = *refs_str;
2375 if (asprintf(refs_str, "%s%s%s", s ? s : "",
2376 s ? ", " : "", name) == -1) {
2377 err = got_error_from_errno("asprintf");
2378 free(s);
2379 *refs_str = NULL;
2380 break;
2381 }
2382 free(s);
2383 }
2384
2385 return err;
2386 }
2387
2388 static const struct got_error *
2389 format_author(wchar_t **wauthor, int *author_width, char *author, int limit,
2390 int col_tab_align)
2391 {
2392 char *smallerthan;
2393
2394 smallerthan = strchr(author, '<');
2395 if (smallerthan && smallerthan[1] != '\0')
2396 author = smallerthan + 1;
2397 author[strcspn(author, "@>")] = '\0';
2398 return format_line(wauthor, author_width, NULL, author, 0, limit,
2399 col_tab_align, 0);
2400 }
2401
2402 static const struct got_error *
2403 draw_commit(struct tog_view *view, struct got_commit_object *commit,
2404 struct got_object_id *id, const size_t date_display_cols,
2405 int author_display_cols)
2406 {
2407 struct tog_log_view_state *s = &view->state.log;
2408 const struct got_error *err = NULL;
2409 char datebuf[12]; /* YYYY-MM-DD + SPACE + NUL */
2410 char *refs_str = NULL;
2411 char *logmsg0 = NULL, *logmsg = NULL;
2412 char *author = NULL;
2413 wchar_t *wrefstr = NULL, *wlogmsg = NULL, *wauthor = NULL;
2414 int author_width, refstr_width, logmsg_width;
2415 char *newline, *line = NULL;
2416 int col, limit, scrollx, logmsg_x;
2417 const int avail = view->ncols;
2418 struct tm tm;
2419 time_t committer_time;
2420 struct tog_color *tc;
2421 struct got_reflist_head *refs;
2422
2423 committer_time = got_object_commit_get_committer_time(commit);
2424 if (gmtime_r(&committer_time, &tm) == NULL)
2425 return got_error_from_errno("gmtime_r");
2426 if (strftime(datebuf, sizeof(datebuf), "%G-%m-%d ", &tm) == 0)
2427 return got_error(GOT_ERR_NO_SPACE);
2428
2429 if (avail <= date_display_cols)
2430 limit = MIN(sizeof(datebuf) - 1, avail);
2431 else
2432 limit = MIN(date_display_cols, sizeof(datebuf) - 1);
2433 tc = get_color(&s->colors, TOG_COLOR_DATE);
2434 if (tc)
2435 wattr_on(view->window,
2436 COLOR_PAIR(tc->colorpair), NULL);
2437 waddnstr(view->window, datebuf, limit);
2438 if (tc)
2439 wattr_off(view->window,
2440 COLOR_PAIR(tc->colorpair), NULL);
2441 col = limit;
2442 if (col > avail)
2443 goto done;
2444
2445 if (avail >= 120) {
2446 char *id_str;
2447 err = got_object_id_str(&id_str, id);
2448 if (err)
2449 goto done;
2450 tc = get_color(&s->colors, TOG_COLOR_COMMIT);
2451 if (tc)
2452 wattr_on(view->window,
2453 COLOR_PAIR(tc->colorpair), NULL);
2454 wprintw(view->window, "%.8s ", id_str);
2455 if (tc)
2456 wattr_off(view->window,
2457 COLOR_PAIR(tc->colorpair), NULL);
2458 free(id_str);
2459 col += 9;
2460 if (col > avail)
2461 goto done;
2462 }
2463
2464 if (s->use_committer)
2465 author = strdup(got_object_commit_get_committer(commit));
2466 else
2467 author = strdup(got_object_commit_get_author(commit));
2468 if (author == NULL) {
2469 err = got_error_from_errno("strdup");
2470 goto done;
2471 }
2472 err = format_author(&wauthor, &author_width, author, avail - col, col);
2473 if (err)
2474 goto done;
2475 tc = get_color(&s->colors, TOG_COLOR_AUTHOR);
2476 if (tc)
2477 wattr_on(view->window,
2478 COLOR_PAIR(tc->colorpair), NULL);
2479 waddwstr(view->window, wauthor);
2480 col += author_width;
2481 while (col < avail && author_width < author_display_cols + 2) {
2482 waddch(view->window, ' ');
2483 col++;
2484 author_width++;
2485 }
2486 if (tc)
2487 wattr_off(view->window,
2488 COLOR_PAIR(tc->colorpair), NULL);
2489 if (col > avail)
2490 goto done;
2491
2492 err = got_object_commit_get_logmsg(&logmsg0, commit);
2493 if (err)
2494 goto done;
2495 logmsg = logmsg0;
2496 while (*logmsg == '\n')
2497 logmsg++;
2498 newline = strchr(logmsg, '\n');
2499 if (newline)
2500 *newline = '\0';
2501
2502 limit = avail - col;
2503 if (view->child && !view_is_hsplit_top(view) && limit > 0)
2504 limit--; /* for the border */
2505
2506 /* Prepend reference labels to log message if possible .*/
2507 refs = got_reflist_object_id_map_lookup(tog_refs_idmap, id);
2508 err = build_refs_str(&refs_str, refs, id, s->repo);
2509 if (err)
2510 goto done;
2511 if (refs_str) {
2512 char *rs;
2513
2514 if (asprintf(&rs, "[%s]", refs_str) == -1) {
2515 err = got_error_from_errno("asprintf");
2516 goto done;
2517 }
2518 err = format_line(&wrefstr, &refstr_width,
2519 &scrollx, rs, view->x, limit, col, 1);
2520 free(rs);
2521 if (err)
2522 goto done;
2523 tc = get_color(&s->colors, TOG_COLOR_COMMIT);
2524 if (tc)
2525 wattr_on(view->window,
2526 COLOR_PAIR(tc->colorpair), NULL);
2527 waddwstr(view->window, &wrefstr[scrollx]);
2528 if (tc)
2529 wattr_off(view->window,
2530 COLOR_PAIR(tc->colorpair), NULL);
2531 col += MAX(refstr_width, 0);
2532 if (col > avail)
2533 goto done;
2534
2535 if (col < avail) {
2536 waddch(view->window, ' ');
2537 col++;
2538 }
2539
2540 if (refstr_width > 0)
2541 logmsg_x = 0;
2542 else {
2543 int unscrolled_refstr_width;
2544 size_t len = wcslen(wrefstr);
2545
2546 /*
2547 * No need to check for -1 return value here since
2548 * unprintables have been replaced by span_wline().
2549 */
2550 unscrolled_refstr_width = wcswidth(wrefstr, len);
2551 unscrolled_refstr_width += 1; /* trailing space */
2552 logmsg_x = view->x - unscrolled_refstr_width;
2553 }
2554
2555 limit = avail - col;
2556 if (view->child && !view_is_hsplit_top(view) && limit > 0)
2557 limit--; /* for the border */
2558 } else
2559 logmsg_x = view->x;
2560
2561 err = format_line(&wlogmsg, &logmsg_width, &scrollx, logmsg, logmsg_x,
2562 limit, col, 1);
2563 if (err)
2564 goto done;
2565 waddwstr(view->window, &wlogmsg[scrollx]);
2566 col += MAX(logmsg_width, 0);
2567 while (col < avail) {
2568 waddch(view->window, ' ');
2569 col++;
2570 }
2571 done:
2572 free(logmsg0);
2573 free(wlogmsg);
2574 free(wrefstr);
2575 free(refs_str);
2576 free(author);
2577 free(wauthor);
2578 free(line);
2579 return err;
2580 }
2581
2582 static struct commit_queue_entry *
2583 alloc_commit_queue_entry(struct got_commit_object *commit,
2584 struct got_object_id *id)
2585 {
2586 struct commit_queue_entry *entry;
2587 struct got_object_id *dup;
2588
2589 entry = calloc(1, sizeof(*entry));
2590 if (entry == NULL)
2591 return NULL;
2592
2593 dup = got_object_id_dup(id);
2594 if (dup == NULL) {
2595 free(entry);
2596 return NULL;
2597 }
2598
2599 entry->id = dup;
2600 entry->commit = commit;
2601 return entry;
2602 }
2603
2604 static void
2605 pop_commit(struct commit_queue *commits)
2606 {
2607 struct commit_queue_entry *entry;
2608
2609 entry = TAILQ_FIRST(&commits->head);
2610 TAILQ_REMOVE(&commits->head, entry, entry);
2611 got_object_commit_close(entry->commit);
2612 commits->ncommits--;
2613 free(entry->id);
2614 free(entry);
2615 }
2616
2617 static void
2618 free_commits(struct commit_queue *commits)
2619 {
2620 while (!TAILQ_EMPTY(&commits->head))
2621 pop_commit(commits);
2622 }
2623
2624 static const struct got_error *
2625 match_commit(int *have_match, struct got_object_id *id,
2626 struct got_commit_object *commit, regex_t *regex)
2627 {
2628 const struct got_error *err = NULL;
2629 regmatch_t regmatch;
2630 char *id_str = NULL, *logmsg = NULL;
2631
2632 *have_match = 0;
2633
2634 err = got_object_id_str(&id_str, id);
2635 if (err)
2636 return err;
2637
2638 err = got_object_commit_get_logmsg(&logmsg, commit);
2639 if (err)
2640 goto done;
2641
2642 if (regexec(regex, got_object_commit_get_author(commit), 1,
2643 &regmatch, 0) == 0 ||
2644 regexec(regex, got_object_commit_get_committer(commit), 1,
2645 &regmatch, 0) == 0 ||
2646 regexec(regex, id_str, 1, &regmatch, 0) == 0 ||
2647 regexec(regex, logmsg, 1, &regmatch, 0) == 0)
2648 *have_match = 1;
2649 done:
2650 free(id_str);
2651 free(logmsg);
2652 return err;
2653 }
2654
2655 static const struct got_error *
2656 queue_commits(struct tog_log_thread_args *a)
2657 {
2658 const struct got_error *err = NULL;
2659
2660 /*
2661 * We keep all commits open throughout the lifetime of the log
2662 * view in order to avoid having to re-fetch commits from disk
2663 * while updating the display.
2664 */
2665 do {
2666 struct got_object_id id;
2667 struct got_commit_object *commit;
2668 struct commit_queue_entry *entry;
2669 int limit_match = 0;
2670 int errcode;
2671
2672 err = got_commit_graph_iter_next(&id, a->graph, a->repo,
2673 NULL, NULL);
2674 if (err)
2675 break;
2676
2677 err = got_object_open_as_commit(&commit, a->repo, &id);
2678 if (err)
2679 break;
2680 entry = alloc_commit_queue_entry(commit, &id);
2681 if (entry == NULL) {
2682 err = got_error_from_errno("alloc_commit_queue_entry");
2683 break;
2684 }
2685
2686 errcode = pthread_mutex_lock(&tog_mutex);
2687 if (errcode) {
2688 err = got_error_set_errno(errcode,
2689 "pthread_mutex_lock");
2690 break;
2691 }
2692
2693 entry->idx = a->real_commits->ncommits;
2694 TAILQ_INSERT_TAIL(&a->real_commits->head, entry, entry);
2695 a->real_commits->ncommits++;
2696
2697 if (*a->limiting) {
2698 err = match_commit(&limit_match, &id, commit,
2699 a->limit_regex);
2700 if (err)
2701 break;
2702
2703 if (limit_match) {
2704 struct commit_queue_entry *matched;
2705
2706 matched = alloc_commit_queue_entry(
2707 entry->commit, entry->id);
2708 if (matched == NULL) {
2709 err = got_error_from_errno(
2710 "alloc_commit_queue_entry");
2711 break;
2712 }
2713 matched->commit = entry->commit;
2714 got_object_commit_retain(entry->commit);
2715
2716 matched->idx = a->limit_commits->ncommits;
2717 TAILQ_INSERT_TAIL(&a->limit_commits->head,
2718 matched, entry);
2719 a->limit_commits->ncommits++;
2720 }
2721
2722 /*
2723 * This is how we signal log_thread() that we
2724 * have found a match, and that it should be
2725 * counted as a new entry for the view.
2726 */
2727 a->limit_match = limit_match;
2728 }
2729
2730 if (*a->searching == TOG_SEARCH_FORWARD &&
2731 !*a->search_next_done) {
2732 int have_match;
2733 err = match_commit(&have_match, &id, commit, a->regex);
2734 if (err)
2735 break;
2736
2737 if (*a->limiting) {
2738 if (limit_match && have_match)
2739 *a->search_next_done =
2740 TOG_SEARCH_HAVE_MORE;
2741 } else if (have_match)
2742 *a->search_next_done = TOG_SEARCH_HAVE_MORE;
2743 }
2744
2745 errcode = pthread_mutex_unlock(&tog_mutex);
2746 if (errcode && err == NULL)
2747 err = got_error_set_errno(errcode,
2748 "pthread_mutex_unlock");
2749 if (err)
2750 break;
2751 } while (*a->searching == TOG_SEARCH_FORWARD && !*a->search_next_done);
2752
2753 return err;
2754 }
2755
2756 static void
2757 select_commit(struct tog_log_view_state *s)
2758 {
2759 struct commit_queue_entry *entry;
2760 int ncommits = 0;
2761
2762 entry = s->first_displayed_entry;
2763 while (entry) {
2764 if (ncommits == s->selected) {
2765 s->selected_entry = entry;
2766 break;
2767 }
2768 entry = TAILQ_NEXT(entry, entry);
2769 ncommits++;
2770 }
2771 }
2772
2773 static const struct got_error *
2774 draw_commits(struct tog_view *view)
2775 {
2776 const struct got_error *err = NULL;
2777 struct tog_log_view_state *s = &view->state.log;
2778 struct commit_queue_entry *entry = s->selected_entry;
2779 int limit = view->nlines;
2780 int width;
2781 int ncommits, author_cols = 4, refstr_cols;
2782 char *id_str = NULL, *header = NULL, *ncommits_str = NULL;
2783 char *refs_str = NULL;
2784 wchar_t *wline;
2785 struct tog_color *tc;
2786 static const size_t date_display_cols = 12;
2787 struct got_reflist_head *refs;
2788
2789 if (view_is_hsplit_top(view))
2790 --limit; /* account for border */
2791
2792 if (s->selected_entry &&
2793 !(view->searching && view->search_next_done == 0)) {
2794 err = got_object_id_str(&id_str, s->selected_entry->id);
2795 if (err)
2796 return err;
2797 refs = got_reflist_object_id_map_lookup(tog_refs_idmap,
2798 s->selected_entry->id);
2799 err = build_refs_str(&refs_str, refs, s->selected_entry->id,
2800 s->repo);
2801 if (err)
2802 goto done;
2803 }
2804
2805 if (s->thread_args.commits_needed == 0 && !using_mock_io)
2806 halfdelay(10); /* disable fast refresh */
2807
2808 if (s->thread_args.commits_needed > 0 || s->thread_args.load_all) {
2809 if (asprintf(&ncommits_str, " [%d/%d] %s",
2810 entry ? entry->idx + 1 : 0, s->commits->ncommits,
2811 (view->searching && !view->search_next_done) ?
2812 "searching..." : "loading...") == -1) {
2813 err = got_error_from_errno("asprintf");
2814 goto done;
2815 }
2816 } else {
2817 const char *search_str = NULL;
2818 const char *limit_str = NULL;
2819
2820 if (view->searching) {
2821 if (view->search_next_done == TOG_SEARCH_NO_MORE)
2822 search_str = "no more matches";
2823 else if (view->search_next_done == TOG_SEARCH_HAVE_NONE)
2824 search_str = "no matches found";
2825 else if (!view->search_next_done)
2826 search_str = "searching...";
2827 }
2828
2829 if (s->limit_view && s->commits->ncommits == 0)
2830 limit_str = "no matches found";
2831
2832 if (asprintf(&ncommits_str, " [%d/%d] %s %s",
2833 entry ? entry->idx + 1 : 0, s->commits->ncommits,
2834 search_str ? search_str : (refs_str ? refs_str : ""),
2835 limit_str ? limit_str : "") == -1) {
2836 err = got_error_from_errno("asprintf");
2837 goto done;
2838 }
2839 }
2840
2841 free(refs_str);
2842 refs_str = NULL;
2843
2844 if (s->in_repo_path && strcmp(s->in_repo_path, "/") != 0) {
2845 if (asprintf(&header, "commit %s %s%s", id_str ? id_str :
2846 "........................................",
2847 s->in_repo_path, ncommits_str) == -1) {
2848 err = got_error_from_errno("asprintf");
2849 header = NULL;
2850 goto done;
2851 }
2852 } else if (asprintf(&header, "commit %s%s",
2853 id_str ? id_str : "........................................",
2854 ncommits_str) == -1) {
2855 err = got_error_from_errno("asprintf");
2856 header = NULL;
2857 goto done;
2858 }
2859 err = format_line(&wline, &width, NULL, header, 0, view->ncols, 0, 0);
2860 if (err)
2861 goto done;
2862
2863 werase(view->window);
2864
2865 if (view_needs_focus_indication(view))
2866 wstandout(view->window);
2867 tc = get_color(&s->colors, TOG_COLOR_COMMIT);
2868 if (tc)
2869 wattr_on(view->window, COLOR_PAIR(tc->colorpair), NULL);
2870 waddwstr(view->window, wline);
2871 while (width < view->ncols) {
2872 waddch(view->window, ' ');
2873 width++;
2874 }
2875 if (tc)
2876 wattr_off(view->window, COLOR_PAIR(tc->colorpair), NULL);
2877 if (view_needs_focus_indication(view))
2878 wstandend(view->window);
2879 free(wline);
2880 if (limit <= 1)
2881 goto done;
2882
2883 /* Grow author column size if necessary, and set view->maxx. */
2884 entry = s->first_displayed_entry;
2885 ncommits = 0;
2886 view->maxx = 0;
2887 while (entry) {
2888 struct got_commit_object *c = entry->commit;
2889 char *author, *eol, *msg, *msg0;
2890 wchar_t *wauthor, *wmsg;
2891 int width;
2892 if (ncommits >= limit - 1)
2893 break;
2894 if (s->use_committer)
2895 author = strdup(got_object_commit_get_committer(c));
2896 else
2897 author = strdup(got_object_commit_get_author(c));
2898 if (author == NULL) {
2899 err = got_error_from_errno("strdup");
2900 goto done;
2901 }
2902 err = format_author(&wauthor, &width, author, COLS,
2903 date_display_cols);
2904 if (author_cols < width)
2905 author_cols = width;
2906 free(wauthor);
2907 free(author);
2908 if (err)
2909 goto done;
2910 refs = got_reflist_object_id_map_lookup(tog_refs_idmap,
2911 entry->id);
2912 err = build_refs_str(&refs_str, refs, entry->id, s->repo);
2913 if (err)
2914 goto done;
2915 if (refs_str) {
2916 wchar_t *ws;
2917 err = format_line(&ws, &width, NULL, refs_str,
2918 0, INT_MAX, date_display_cols + author_cols, 0);
2919 free(ws);
2920 free(refs_str);
2921 refs_str = NULL;
2922 if (err)
2923 goto done;
2924 refstr_cols = width + 3; /* account for [ ] + space */
2925 } else
2926 refstr_cols = 0;
2927 err = got_object_commit_get_logmsg(&msg0, c);
2928 if (err)
2929 goto done;
2930 msg = msg0;
2931 while (*msg == '\n')
2932 ++msg;
2933 if ((eol = strchr(msg, '\n')))
2934 *eol = '\0';
2935 err = format_line(&wmsg, &width, NULL, msg, 0, INT_MAX,
2936 date_display_cols + author_cols + refstr_cols, 0);
2937 if (err)
2938 goto done;
2939 view->maxx = MAX(view->maxx, width + refstr_cols);
2940 free(msg0);
2941 free(wmsg);
2942 ncommits++;
2943 entry = TAILQ_NEXT(entry, entry);
2944 }
2945
2946 entry = s->first_displayed_entry;
2947 s->last_displayed_entry = s->first_displayed_entry;
2948 ncommits = 0;
2949 while (entry) {
2950 if (ncommits >= limit - 1)
2951 break;
2952 if (ncommits == s->selected)
2953 wstandout(view->window);
2954 err = draw_commit(view, entry->commit, entry->id,
2955 date_display_cols, author_cols);
2956 if (ncommits == s->selected)
2957 wstandend(view->window);
2958 if (err)
2959 goto done;
2960 ncommits++;
2961 s->last_displayed_entry = entry;
2962 entry = TAILQ_NEXT(entry, entry);
2963 }
2964
2965 view_border(view);
2966 done:
2967 free(id_str);
2968 free(refs_str);
2969 free(ncommits_str);
2970 free(header);
2971 return err;
2972 }
2973
2974 static void
2975 log_scroll_up(struct tog_log_view_state *s, int maxscroll)
2976 {
2977 struct commit_queue_entry *entry;
2978 int nscrolled = 0;
2979
2980 entry = TAILQ_FIRST(&s->commits->head);
2981 if (s->first_displayed_entry == entry)
2982 return;
2983
2984 entry = s->first_displayed_entry;
2985 while (entry && nscrolled < maxscroll) {
2986 entry = TAILQ_PREV(entry, commit_queue_head, entry);
2987 if (entry) {
2988 s->first_displayed_entry = entry;
2989 nscrolled++;
2990 }
2991 }
2992 }
2993
2994 static const struct got_error *
2995 trigger_log_thread(struct tog_view *view, int wait)
2996 {
2997 struct tog_log_thread_args *ta = &view->state.log.thread_args;
2998 int errcode;
2999
3000 if (!using_mock_io)
3001 halfdelay(1); /* fast refresh while loading commits */
3002
3003 while (!ta->log_complete && !tog_thread_error &&
3004 (ta->commits_needed > 0 || ta->load_all)) {
3005 /* Wake the log thread. */
3006 errcode = pthread_cond_signal(&ta->need_commits);
3007 if (errcode)
3008 return got_error_set_errno(errcode,
3009 "pthread_cond_signal");
3010
3011 /*
3012 * The mutex will be released while the view loop waits
3013 * in wgetch(), at which time the log thread will run.
3014 */
3015 if (!wait)
3016 break;
3017
3018 /* Display progress update in log view. */
3019 show_log_view(view);
3020 update_panels();
3021 doupdate();
3022
3023 /* Wait right here while next commit is being loaded. */
3024 errcode = pthread_cond_wait(&ta->commit_loaded, &tog_mutex);
3025 if (errcode)
3026 return got_error_set_errno(errcode,
3027 "pthread_cond_wait");
3028
3029 /* Display progress update in log view. */
3030 show_log_view(view);
3031 update_panels();
3032 doupdate();
3033 }
3034
3035 return NULL;
3036 }
3037
3038 static const struct got_error *
3039 request_log_commits(struct tog_view *view)
3040 {
3041 struct tog_log_view_state *state = &view->state.log;
3042 const struct got_error *err = NULL;
3043
3044 if (state->thread_args.log_complete)
3045 return NULL;
3046
3047 state->thread_args.commits_needed += view->nscrolled;
3048 err = trigger_log_thread(view, 1);
3049 view->nscrolled = 0;
3050
3051 return err;
3052 }
3053
3054 static const struct got_error *
3055 log_scroll_down(struct tog_view *view, int maxscroll)
3056 {
3057 struct tog_log_view_state *s = &view->state.log;
3058 const struct got_error *err = NULL;
3059 struct commit_queue_entry *pentry;
3060 int nscrolled = 0, ncommits_needed;
3061
3062 if (s->last_displayed_entry == NULL)
3063 return NULL;
3064
3065 ncommits_needed = s->last_displayed_entry->idx + 1 + maxscroll;
3066 if (s->commits->ncommits < ncommits_needed &&
3067 !s->thread_args.log_complete) {
3068 /*
3069 * Ask the log thread for required amount of commits.
3070 */
3071 s->thread_args.commits_needed +=
3072 ncommits_needed - s->commits->ncommits;
3073 err = trigger_log_thread(view, 1);
3074 if (err)
3075 return err;
3076 }
3077
3078 do {
3079 pentry = TAILQ_NEXT(s->last_displayed_entry, entry);
3080 if (pentry == NULL && view->mode != TOG_VIEW_SPLIT_HRZN)
3081 break;
3082
3083 s->last_displayed_entry = pentry ?
3084 pentry : s->last_displayed_entry;
3085
3086 pentry = TAILQ_NEXT(s->first_displayed_entry, entry);
3087 if (pentry == NULL)
3088 break;
3089 s->first_displayed_entry = pentry;
3090 } while (++nscrolled < maxscroll);
3091
3092 if (view->mode == TOG_VIEW_SPLIT_HRZN && !s->thread_args.log_complete)
3093 view->nscrolled += nscrolled;
3094 else
3095 view->nscrolled = 0;
3096
3097 return err;
3098 }
3099
3100 static const struct got_error *
3101 open_diff_view_for_commit(struct tog_view **new_view, int begin_y, int begin_x,
3102 struct got_commit_object *commit, struct got_object_id *commit_id,
3103 struct tog_view *log_view, struct got_repository *repo)
3104 {
3105 const struct got_error *err;
3106 struct got_object_qid *parent_id;
3107 struct tog_view *diff_view;
3108
3109 diff_view = view_open(0, 0, begin_y, begin_x, TOG_VIEW_DIFF);
3110 if (diff_view == NULL)
3111 return got_error_from_errno("view_open");
3112
3113 parent_id = STAILQ_FIRST(got_object_commit_get_parent_ids(commit));
3114 err = open_diff_view(diff_view, parent_id ? &parent_id->id : NULL,
3115 commit_id, NULL, NULL, 3, 0, 0, log_view, repo);
3116 if (err == NULL)
3117 *new_view = diff_view;
3118 return err;
3119 }
3120
3121 static const struct got_error *
3122 tree_view_visit_subtree(struct tog_tree_view_state *s,
3123 struct got_tree_object *subtree)
3124 {
3125 struct tog_parent_tree *parent;
3126
3127 parent = calloc(1, sizeof(*parent));
3128 if (parent == NULL)
3129 return got_error_from_errno("calloc");
3130
3131 parent->tree = s->tree;
3132 parent->first_displayed_entry = s->first_displayed_entry;
3133 parent->selected_entry = s->selected_entry;
3134 parent->selected = s->selected;
3135 TAILQ_INSERT_HEAD(&s->parents, parent, entry);
3136 s->tree = subtree;
3137 s->selected = 0;
3138 s->first_displayed_entry = NULL;
3139 return NULL;
3140 }
3141
3142 static const struct got_error *
3143 tree_view_walk_path(struct tog_tree_view_state *s,
3144 struct got_commit_object *commit, const char *path)
3145 {
3146 const struct got_error *err = NULL;
3147 struct got_tree_object *tree = NULL;
3148 const char *p;
3149 char *slash, *subpath = NULL;
3150
3151 /* Walk the path and open corresponding tree objects. */
3152 p = path;
3153 while (*p) {
3154 struct got_tree_entry *te;
3155 struct got_object_id *tree_id;
3156 char *te_name;
3157
3158 while (p[0] == '/')
3159 p++;
3160
3161 /* Ensure the correct subtree entry is selected. */
3162 slash = strchr(p, '/');
3163 if (slash == NULL)
3164 te_name = strdup(p);
3165 else
3166 te_name = strndup(p, slash - p);
3167 if (te_name == NULL) {
3168 err = got_error_from_errno("strndup");
3169 break;
3170 }
3171 te = got_object_tree_find_entry(s->tree, te_name);
3172 if (te == NULL) {
3173 err = got_error_path(te_name, GOT_ERR_NO_TREE_ENTRY);
3174 free(te_name);
3175 break;
3176 }
3177 free(te_name);
3178 s->first_displayed_entry = s->selected_entry = te;
3179
3180 if (!S_ISDIR(got_tree_entry_get_mode(s->selected_entry)))
3181 break; /* jump to this file's entry */
3182
3183 slash = strchr(p, '/');
3184 if (slash)
3185 subpath = strndup(path, slash - path);
3186 else
3187 subpath = strdup(path);
3188 if (subpath == NULL) {
3189 err = got_error_from_errno("strdup");
3190 break;
3191 }
3192
3193 err = got_object_id_by_path(&tree_id, s->repo, commit,
3194 subpath);
3195 if (err)
3196 break;
3197
3198 err = got_object_open_as_tree(&tree, s->repo, tree_id);
3199 free(tree_id);
3200 if (err)
3201 break;
3202
3203 err = tree_view_visit_subtree(s, tree);
3204 if (err) {
3205 got_object_tree_close(tree);
3206 break;
3207 }
3208 if (slash == NULL)
3209 break;
3210 free(subpath);
3211 subpath = NULL;
3212 p = slash;
3213 }
3214
3215 free(subpath);
3216 return err;
3217 }
3218
3219 static const struct got_error *
3220 browse_commit_tree(struct tog_view **new_view, int begin_y, int begin_x,
3221 struct commit_queue_entry *entry, const char *path,
3222 const char *head_ref_name, struct got_repository *repo)
3223 {
3224 const struct got_error *err = NULL;
3225 struct tog_tree_view_state *s;
3226 struct tog_view *tree_view;
3227
3228 tree_view = view_open(0, 0, begin_y, begin_x, TOG_VIEW_TREE);
3229 if (tree_view == NULL)
3230 return got_error_from_errno("view_open");
3231
3232 err = open_tree_view(tree_view, entry->id, head_ref_name, repo);
3233 if (err)
3234 return err;
3235 s = &tree_view->state.tree;
3236
3237 *new_view = tree_view;
3238
3239 if (got_path_is_root_dir(path))
3240 return NULL;
3241
3242 return tree_view_walk_path(s, entry->commit, path);
3243 }
3244
3245 static const struct got_error *
3246 block_signals_used_by_main_thread(void)
3247 {
3248 sigset_t sigset;
3249 int errcode;
3250
3251 if (sigemptyset(&sigset) == -1)
3252 return got_error_from_errno("sigemptyset");
3253
3254 /* tog handles SIGWINCH, SIGCONT, SIGINT, SIGTERM */
3255 if (sigaddset(&sigset, SIGWINCH) == -1)
3256 return got_error_from_errno("sigaddset");
3257 if (sigaddset(&sigset, SIGCONT) == -1)
3258 return got_error_from_errno("sigaddset");
3259 if (sigaddset(&sigset, SIGINT) == -1)
3260 return got_error_from_errno("sigaddset");
3261 if (sigaddset(&sigset, SIGTERM) == -1)
3262 return got_error_from_errno("sigaddset");
3263
3264 /* ncurses handles SIGTSTP */
3265 if (sigaddset(&sigset, SIGTSTP) == -1)
3266 return got_error_from_errno("sigaddset");
3267
3268 errcode = pthread_sigmask(SIG_BLOCK, &sigset, NULL);
3269 if (errcode)
3270 return got_error_set_errno(errcode, "pthread_sigmask");
3271
3272 return NULL;
3273 }
3274
3275 static void *
3276 log_thread(void *arg)
3277 {
3278 const struct got_error *err = NULL;
3279 int errcode = 0;
3280 struct tog_log_thread_args *a = arg;
3281 int done = 0;
3282
3283 /*
3284 * Sync startup with main thread such that we begin our
3285 * work once view_input() has released the mutex.
3286 */
3287 errcode = pthread_mutex_lock(&tog_mutex);
3288 if (errcode) {
3289 err = got_error_set_errno(errcode, "pthread_mutex_lock");
3290 return (void *)err;
3291 }
3292
3293 err = block_signals_used_by_main_thread();
3294 if (err) {
3295 pthread_mutex_unlock(&tog_mutex);
3296 goto done;
3297 }
3298
3299 while (!done && !err && !tog_fatal_signal_received()) {
3300 errcode = pthread_mutex_unlock(&tog_mutex);
3301 if (errcode) {
3302 err = got_error_set_errno(errcode,
3303 "pthread_mutex_unlock");
3304 goto done;
3305 }
3306 err = queue_commits(a);
3307 if (err) {
3308 if (err->code != GOT_ERR_ITER_COMPLETED)
3309 goto done;
3310 err = NULL;
3311 done = 1;
3312 } else if (a->commits_needed > 0 && !a->load_all) {
3313 if (*a->limiting) {
3314 if (a->limit_match)
3315 a->commits_needed--;
3316 } else
3317 a->commits_needed--;
3318 }
3319
3320 errcode = pthread_mutex_lock(&tog_mutex);
3321 if (errcode) {
3322 err = got_error_set_errno(errcode,
3323 "pthread_mutex_lock");
3324 goto done;
3325 } else if (*a->quit)
3326 done = 1;
3327 else if (*a->limiting && *a->first_displayed_entry == NULL) {
3328 *a->first_displayed_entry =
3329 TAILQ_FIRST(&a->limit_commits->head);
3330 *a->selected_entry = *a->first_displayed_entry;
3331 } else if (*a->first_displayed_entry == NULL) {
3332 *a->first_displayed_entry =
3333 TAILQ_FIRST(&a->real_commits->head);
3334 *a->selected_entry = *a->first_displayed_entry;
3335 }
3336
3337 errcode = pthread_cond_signal(&a->commit_loaded);
3338 if (errcode) {
3339 err = got_error_set_errno(errcode,
3340 "pthread_cond_signal");
3341 pthread_mutex_unlock(&tog_mutex);
3342 goto done;
3343 }
3344
3345 if (done)
3346 a->commits_needed = 0;
3347 else {
3348 if (a->commits_needed == 0 && !a->load_all) {
3349 errcode = pthread_cond_wait(&a->need_commits,
3350 &tog_mutex);
3351 if (errcode) {
3352 err = got_error_set_errno(errcode,
3353 "pthread_cond_wait");
3354 pthread_mutex_unlock(&tog_mutex);
3355 goto done;
3356 }
3357 if (*a->quit)
3358 done = 1;
3359 }
3360 }
3361 }
3362 a->log_complete = 1;
3363 errcode = pthread_mutex_unlock(&tog_mutex);
3364 if (errcode)
3365 err = got_error_set_errno(errcode, "pthread_mutex_unlock");
3366 done:
3367 if (err) {
3368 tog_thread_error = 1;
3369 pthread_cond_signal(&a->commit_loaded);
3370 }
3371 return (void *)err;
3372 }
3373
3374 static const struct got_error *
3375 stop_log_thread(struct tog_log_view_state *s)
3376 {
3377 const struct got_error *err = NULL, *thread_err = NULL;
3378 int errcode;
3379
3380 if (s->thread) {
3381 s->quit = 1;
3382 errcode = pthread_cond_signal(&s->thread_args.need_commits);
3383 if (errcode)
3384 return got_error_set_errno(errcode,
3385 "pthread_cond_signal");
3386 errcode = pthread_mutex_unlock(&tog_mutex);
3387 if (errcode)
3388 return got_error_set_errno(errcode,
3389 "pthread_mutex_unlock");
3390 errcode = pthread_join(s->thread, (void **)&thread_err);
3391 if (errcode)
3392 return got_error_set_errno(errcode, "pthread_join");
3393 errcode = pthread_mutex_lock(&tog_mutex);
3394 if (errcode)
3395 return got_error_set_errno(errcode,
3396 "pthread_mutex_lock");
3397 s->thread = 0; //NULL;
3398 }
3399
3400 if (s->thread_args.repo) {
3401 err = got_repo_close(s->thread_args.repo);
3402 s->thread_args.repo = NULL;
3403 }
3404
3405 if (s->thread_args.pack_fds) {
3406 const struct got_error *pack_err =
3407 got_repo_pack_fds_close(s->thread_args.pack_fds);
3408 if (err == NULL)
3409 err = pack_err;
3410 s->thread_args.pack_fds = NULL;
3411 }
3412
3413 if (s->thread_args.graph) {
3414 got_commit_graph_close(s->thread_args.graph);
3415 s->thread_args.graph = NULL;
3416 }
3417
3418 return err ? err : thread_err;
3419 }
3420
3421 static const struct got_error *
3422 close_log_view(struct tog_view *view)
3423 {
3424 const struct got_error *err = NULL;
3425 struct tog_log_view_state *s = &view->state.log;
3426 int errcode;
3427
3428 err = stop_log_thread(s);
3429
3430 errcode = pthread_cond_destroy(&s->thread_args.need_commits);
3431 if (errcode && err == NULL)
3432 err = got_error_set_errno(errcode, "pthread_cond_destroy");
3433
3434 errcode = pthread_cond_destroy(&s->thread_args.commit_loaded);
3435 if (errcode && err == NULL)
3436 err = got_error_set_errno(errcode, "pthread_cond_destroy");
3437
3438 free_commits(&s->limit_commits);
3439 free_commits(&s->real_commits);
3440 free(s->in_repo_path);
3441 s->in_repo_path = NULL;
3442 free(s->start_id);
3443 s->start_id = NULL;
3444 free(s->head_ref_name);
3445 s->head_ref_name = NULL;
3446 return err;
3447 }
3448
3449 /*
3450 * We use two queues to implement the limit feature: first consists of
3451 * commits matching the current limit_regex; second is the real queue
3452 * of all known commits (real_commits). When the user starts limiting,
3453 * we swap queues such that all movement and displaying functionality
3454 * works with very slight change.
3455 */
3456 static const struct got_error *
3457 limit_log_view(struct tog_view *view)
3458 {
3459 struct tog_log_view_state *s = &view->state.log;
3460 struct commit_queue_entry *entry;
3461 struct tog_view *v = view;
3462 const struct got_error *err = NULL;
3463 char pattern[1024];
3464 int ret;
3465
3466 if (view_is_hsplit_top(view))
3467 v = view->child;
3468 else if (view->mode == TOG_VIEW_SPLIT_VERT && view->parent)
3469 v = view->parent;
3470
3471 /* Get the pattern */
3472 wmove(v->window, v->nlines - 1, 0);
3473 wclrtoeol(v->window);
3474 mvwaddstr(v->window, v->nlines - 1, 0, "&/");
3475 nodelay(v->window, FALSE);
3476 nocbreak();
3477 echo();
3478 ret = wgetnstr(v->window, pattern, sizeof(pattern));
3479 cbreak();
3480 noecho();
3481 nodelay(v->window, TRUE);
3482 if (ret == ERR)
3483 return NULL;
3484
3485 if (*pattern == '\0') {
3486 /*
3487 * Safety measure for the situation where the user
3488 * resets limit without previously limiting anything.
3489 */
3490 if (!s->limit_view)
3491 return NULL;
3492
3493 /*
3494 * User could have pressed Ctrl+L, which refreshed the
3495 * commit queues, it means we can't save previously
3496 * (before limit took place) displayed entries,
3497 * because they would point to already free'ed memory,
3498 * so we are forced to always select first entry of
3499 * the queue.
3500 */
3501 s->commits = &s->real_commits;
3502 s->first_displayed_entry = TAILQ_FIRST(&s->real_commits.head);
3503 s->selected_entry = s->first_displayed_entry;
3504 s->selected = 0;
3505 s->limit_view = 0;
3506
3507 return NULL;
3508 }
3509
3510 if (regcomp(&s->limit_regex, pattern, REG_EXTENDED | REG_NEWLINE))
3511 return NULL;
3512
3513 s->limit_view = 1;
3514
3515 /* Clear the screen while loading limit view */
3516 s->first_displayed_entry = NULL;
3517 s->last_displayed_entry = NULL;
3518 s->selected_entry = NULL;
3519 s->commits = &s->limit_commits;
3520
3521 /* Prepare limit queue for new search */
3522 free_commits(&s->limit_commits);
3523 s->limit_commits.ncommits = 0;
3524
3525 /* First process commits, which are in queue already */
3526 TAILQ_FOREACH(entry, &s->real_commits.head, entry) {
3527 int have_match = 0;
3528
3529 err = match_commit(&have_match, entry->id,
3530 entry->commit, &s->limit_regex);
3531 if (err)
3532 return err;
3533
3534 if (have_match) {
3535 struct commit_queue_entry *matched;
3536
3537 matched = alloc_commit_queue_entry(entry->commit,
3538 entry->id);
3539 if (matched == NULL) {
3540 err = got_error_from_errno(
3541 "alloc_commit_queue_entry");
3542 break;
3543 }
3544 matched->commit = entry->commit;
3545 got_object_commit_retain(entry->commit);
3546
3547 matched->idx = s->limit_commits.ncommits;
3548 TAILQ_INSERT_TAIL(&s->limit_commits.head,
3549 matched, entry);
3550 s->limit_commits.ncommits++;
3551 }
3552 }
3553
3554 /* Second process all the commits, until we fill the screen */
3555 if (s->limit_commits.ncommits < view->nlines - 1 &&
3556 !s->thread_args.log_complete) {
3557 s->thread_args.commits_needed +=
3558 view->nlines - s->limit_commits.ncommits - 1;
3559 err = trigger_log_thread(view, 1);
3560 if (err)
3561 return err;
3562 }
3563
3564 s->first_displayed_entry = TAILQ_FIRST(&s->commits->head);
3565 s->selected_entry = TAILQ_FIRST(&s->commits->head);
3566 s->selected = 0;
3567
3568 return NULL;
3569 }
3570
3571 static const struct got_error *
3572 search_start_log_view(struct tog_view *view)
3573 {
3574 struct tog_log_view_state *s = &view->state.log;
3575
3576 s->matched_entry = NULL;
3577 s->search_entry = NULL;
3578 return NULL;
3579 }
3580
3581 static const struct got_error *
3582 search_next_log_view(struct tog_view *view)
3583 {
3584 const struct got_error *err = NULL;
3585 struct tog_log_view_state *s = &view->state.log;
3586 struct commit_queue_entry *entry;
3587
3588 /* Display progress update in log view. */
3589 show_log_view(view);
3590 update_panels();
3591 doupdate();
3592
3593 if (s->search_entry) {
3594 int errcode, ch;
3595 errcode = pthread_mutex_unlock(&tog_mutex);
3596 if (errcode)
3597 return got_error_set_errno(errcode,
3598 "pthread_mutex_unlock");
3599 ch = wgetch(view->window);
3600 errcode = pthread_mutex_lock(&tog_mutex);
3601 if (errcode)
3602 return got_error_set_errno(errcode,
3603 "pthread_mutex_lock");
3604 if (ch == CTRL('g') || ch == KEY_BACKSPACE) {
3605 view->search_next_done = TOG_SEARCH_HAVE_MORE;
3606 return NULL;
3607 }
3608 if (view->searching == TOG_SEARCH_FORWARD)
3609 entry = TAILQ_NEXT(s->search_entry, entry);
3610 else
3611 entry = TAILQ_PREV(s->search_entry,
3612 commit_queue_head, entry);
3613 } else if (s->matched_entry) {
3614 /*
3615 * If the user has moved the cursor after we hit a match,
3616 * the position from where we should continue searching
3617 * might have changed.
3618 */
3619 if (view->searching == TOG_SEARCH_FORWARD)
3620 entry = TAILQ_NEXT(s->selected_entry, entry);
3621 else
3622 entry = TAILQ_PREV(s->selected_entry, commit_queue_head,
3623 entry);
3624 } else {
3625 entry = s->selected_entry;
3626 }
3627
3628 while (1) {
3629 int have_match = 0;
3630
3631 if (entry == NULL) {
3632 if (s->thread_args.log_complete ||
3633 view->searching == TOG_SEARCH_BACKWARD) {
3634 view->search_next_done =
3635 (s->matched_entry == NULL ?
3636 TOG_SEARCH_HAVE_NONE : TOG_SEARCH_NO_MORE);
3637 s->search_entry = NULL;
3638 return NULL;
3639 }
3640 /*
3641 * Poke the log thread for more commits and return,
3642 * allowing the main loop to make progress. Search
3643 * will resume at s->search_entry once we come back.
3644 */
3645 s->thread_args.commits_needed++;
3646 return trigger_log_thread(view, 0);
3647 }
3648
3649 err = match_commit(&have_match, entry->id, entry->commit,
3650 &view->regex);
3651 if (err)
3652 break;
3653 if (have_match) {
3654 view->search_next_done = TOG_SEARCH_HAVE_MORE;
3655 s->matched_entry = entry;
3656 break;
3657 }
3658
3659 s->search_entry = entry;
3660 if (view->searching == TOG_SEARCH_FORWARD)
3661 entry = TAILQ_NEXT(entry, entry);
3662 else
3663 entry = TAILQ_PREV(entry, commit_queue_head, entry);
3664 }
3665
3666 if (s->matched_entry) {
3667 int cur = s->selected_entry->idx;
3668 while (cur < s->matched_entry->idx) {
3669 err = input_log_view(NULL, view, KEY_DOWN);
3670 if (err)
3671 return err;
3672 cur++;
3673 }
3674 while (cur > s->matched_entry->idx) {
3675 err = input_log_view(NULL, view, KEY_UP);
3676 if (err)
3677 return err;
3678 cur--;
3679 }
3680 }
3681
3682 s->search_entry = NULL;
3683
3684 return NULL;
3685 }
3686
3687 static const struct got_error *
3688 open_log_view(struct tog_view *view, struct got_object_id *start_id,
3689 struct got_repository *repo, const char *head_ref_name,
3690 const char *in_repo_path, int log_branches)
3691 {
3692 const struct got_error *err = NULL;
3693 struct tog_log_view_state *s = &view->state.log;
3694 struct got_repository *thread_repo = NULL;
3695 struct got_commit_graph *thread_graph = NULL;
3696 int errcode;
3697
3698 if (in_repo_path != s->in_repo_path) {
3699 free(s->in_repo_path);
3700 s->in_repo_path = strdup(in_repo_path);
3701 if (s->in_repo_path == NULL) {
3702 err = got_error_from_errno("strdup");
3703 goto done;
3704 }
3705 }
3706
3707 /* The commit queue only contains commits being displayed. */
3708 TAILQ_INIT(&s->real_commits.head);
3709 s->real_commits.ncommits = 0;
3710 s->commits = &s->real_commits;
3711
3712 TAILQ_INIT(&s->limit_commits.head);
3713 s->limit_view = 0;
3714 s->limit_commits.ncommits = 0;
3715
3716 s->repo = repo;
3717 if (head_ref_name) {
3718 s->head_ref_name = strdup(head_ref_name);
3719 if (s->head_ref_name == NULL) {
3720 err = got_error_from_errno("strdup");
3721 goto done;
3722 }
3723 }
3724 s->start_id = got_object_id_dup(start_id);
3725 if (s->start_id == NULL) {
3726 err = got_error_from_errno("got_object_id_dup");
3727 goto done;
3728 }
3729 s->log_branches = log_branches;
3730 s->use_committer = 1;
3731
3732 STAILQ_INIT(&s->colors);
3733 if (has_colors() && getenv("TOG_COLORS") != NULL) {
3734 err = add_color(&s->colors, "^$", TOG_COLOR_COMMIT,
3735 get_color_value("TOG_COLOR_COMMIT"));
3736 if (err)
3737 goto done;
3738 err = add_color(&s->colors, "^$", TOG_COLOR_AUTHOR,
3739 get_color_value("TOG_COLOR_AUTHOR"));
3740 if (err) {
3741 free_colors(&s->colors);
3742 goto done;
3743 }
3744 err = add_color(&s->colors, "^$", TOG_COLOR_DATE,
3745 get_color_value("TOG_COLOR_DATE"));
3746 if (err) {
3747 free_colors(&s->colors);
3748 goto done;
3749 }
3750 }
3751
3752 view->show = show_log_view;
3753 view->input = input_log_view;
3754 view->resize = resize_log_view;
3755 view->close = close_log_view;
3756 view->search_start = search_start_log_view;
3757 view->search_next = search_next_log_view;
3758
3759 if (s->thread_args.pack_fds == NULL) {
3760 err = got_repo_pack_fds_open(&s->thread_args.pack_fds);
3761 if (err)
3762 goto done;
3763 }
3764 err = got_repo_open(&thread_repo, got_repo_get_path(repo), NULL,
3765 s->thread_args.pack_fds);
3766 if (err)
3767 goto done;
3768 err = got_commit_graph_open(&thread_graph, s->in_repo_path,
3769 !s->log_branches);
3770 if (err)
3771 goto done;
3772 err = got_commit_graph_iter_start(thread_graph, s->start_id,
3773 s->repo, NULL, NULL);
3774 if (err)
3775 goto done;
3776
3777 errcode = pthread_cond_init(&s->thread_args.need_commits, NULL);
3778 if (errcode) {
3779 err = got_error_set_errno(errcode, "pthread_cond_init");
3780 goto done;
3781 }
3782 errcode = pthread_cond_init(&s->thread_args.commit_loaded, NULL);
3783 if (errcode) {
3784 err = got_error_set_errno(errcode, "pthread_cond_init");
3785 goto done;
3786 }
3787
3788 s->thread_args.commits_needed = view->nlines;
3789 s->thread_args.graph = thread_graph;
3790 s->thread_args.real_commits = &s->real_commits;
3791 s->thread_args.limit_commits = &s->limit_commits;
3792 s->thread_args.in_repo_path = s->in_repo_path;
3793 s->thread_args.start_id = s->start_id;
3794 s->thread_args.repo = thread_repo;
3795 s->thread_args.log_complete = 0;
3796 s->thread_args.quit = &s->quit;
3797 s->thread_args.first_displayed_entry = &s->first_displayed_entry;
3798 s->thread_args.selected_entry = &s->selected_entry;
3799 s->thread_args.searching = &view->searching;
3800 s->thread_args.search_next_done = &view->search_next_done;
3801 s->thread_args.regex = &view->regex;
3802 s->thread_args.limiting = &s->limit_view;
3803 s->thread_args.limit_regex = &s->limit_regex;
3804 s->thread_args.limit_commits = &s->limit_commits;
3805 done:
3806 if (err) {
3807 if (view->close == NULL)
3808 close_log_view(view);
3809 view_close(view);
3810 }
3811 return err;
3812 }
3813
3814 static const struct got_error *
3815 show_log_view(struct tog_view *view)
3816 {
3817 const struct got_error *err;
3818 struct tog_log_view_state *s = &view->state.log;
3819
3820 if (s->thread == 0) { //NULL) {
3821 int errcode = pthread_create(&s->thread, NULL, log_thread,
3822 &s->thread_args);
3823 if (errcode)
3824 return got_error_set_errno(errcode, "pthread_create");
3825 if (s->thread_args.commits_needed > 0) {
3826 err = trigger_log_thread(view, 1);
3827 if (err)
3828 return err;
3829 }
3830 }
3831
3832 return draw_commits(view);
3833 }
3834
3835 static void
3836 log_move_cursor_up(struct tog_view *view, int page, int home)
3837 {
3838 struct tog_log_view_state *s = &view->state.log;
3839
3840 if (s->first_displayed_entry == NULL)
3841 return;
3842 if (s->selected_entry->idx == 0)
3843 view->count = 0;
3844
3845 if ((page && TAILQ_FIRST(&s->commits->head) == s->first_displayed_entry)
3846 || home)
3847 s->selected = home ? 0 : MAX(0, s->selected - page - 1);
3848
3849 if (!page && !home && s->selected > 0)
3850 --s->selected;
3851 else
3852 log_scroll_up(s, home ? s->commits->ncommits : MAX(page, 1));
3853
3854 select_commit(s);
3855 return;
3856 }
3857
3858 static const struct got_error *
3859 log_move_cursor_down(struct tog_view *view, int page)
3860 {
3861 struct tog_log_view_state *s = &view->state.log;
3862 const struct got_error *err = NULL;
3863 int eos = view->nlines - 2;
3864
3865 if (s->first_displayed_entry == NULL)
3866 return NULL;
3867
3868 if (s->thread_args.log_complete &&
3869 s->selected_entry->idx >= s->commits->ncommits - 1)
3870 return NULL;
3871
3872 if (view_is_hsplit_top(view))
3873 --eos; /* border consumes the last line */
3874
3875 if (!page) {
3876 if (s->selected < MIN(eos, s->commits->ncommits - 1))
3877 ++s->selected;
3878 else
3879 err = log_scroll_down(view, 1);
3880 } else if (s->thread_args.load_all && s->thread_args.log_complete) {
3881 struct commit_queue_entry *entry;
3882 int n;
3883
3884 s->selected = 0;
3885 entry = TAILQ_LAST(&s->commits->head, commit_queue_head);
3886 s->last_displayed_entry = entry;
3887 for (n = 0; n <= eos; n++) {
3888 if (entry == NULL)
3889 break;
3890 s->first_displayed_entry = entry;
3891 entry = TAILQ_PREV(entry, commit_queue_head, entry);
3892 }
3893 if (n > 0)
3894 s->selected = n - 1;
3895 } else {
3896 if (s->last_displayed_entry->idx == s->commits->ncommits - 1 &&
3897 s->thread_args.log_complete)
3898 s->selected += MIN(page,
3899 s->commits->ncommits - s->selected_entry->idx - 1);
3900 else
3901 err = log_scroll_down(view, page);
3902 }
3903 if (err)
3904 return err;
3905
3906 /*
3907 * We might necessarily overshoot in horizontal
3908 * splits; if so, select the last displayed commit.
3909 */
3910 if (s->first_displayed_entry && s->last_displayed_entry) {
3911 s->selected = MIN(s->selected,
3912 s->last_displayed_entry->idx -
3913 s->first_displayed_entry->idx);
3914 }
3915
3916 select_commit(s);
3917
3918 if (s->thread_args.log_complete &&
3919 s->selected_entry->idx == s->commits->ncommits - 1)
3920 view->count = 0;
3921
3922 return NULL;
3923 }
3924
3925 static void
3926 view_get_split(struct tog_view *view, int *y, int *x)
3927 {
3928 *x = 0;
3929 *y = 0;
3930
3931 if (view->mode == TOG_VIEW_SPLIT_HRZN) {
3932 if (view->child && view->child->resized_y)
3933 *y = view->child->resized_y;
3934 else if (view->resized_y)
3935 *y = view->resized_y;
3936 else
3937 *y = view_split_begin_y(view->lines);
3938 } else if (view->mode == TOG_VIEW_SPLIT_VERT) {
3939 if (view->child && view->child->resized_x)
3940 *x = view->child->resized_x;
3941 else if (view->resized_x)
3942 *x = view->resized_x;
3943 else
3944 *x = view_split_begin_x(view->begin_x);
3945 }
3946 }
3947
3948 /* Split view horizontally at y and offset view->state->selected line. */
3949 static const struct got_error *
3950 view_init_hsplit(struct tog_view *view, int y)
3951 {
3952 const struct got_error *err = NULL;
3953
3954 view->nlines = y;
3955 view->ncols = COLS;
3956 err = view_resize(view);
3957 if (err)
3958 return err;
3959
3960 err = offset_selection_down(view);
3961
3962 return err;
3963 }
3964
3965 static const struct got_error *
3966 log_goto_line(struct tog_view *view, int nlines)
3967 {
3968 const struct got_error *err = NULL;
3969 struct tog_log_view_state *s = &view->state.log;
3970 int g, idx = s->selected_entry->idx;
3971
3972 if (s->first_displayed_entry == NULL || s->last_displayed_entry == NULL)
3973 return NULL;
3974
3975 g = view->gline;
3976 view->gline = 0;
3977
3978 if (g >= s->first_displayed_entry->idx + 1 &&
3979 g <= s->last_displayed_entry->idx + 1 &&
3980 g - s->first_displayed_entry->idx - 1 < nlines) {
3981 s->selected = g - s->first_displayed_entry->idx - 1;
3982 select_commit(s);
3983 return NULL;
3984 }
3985
3986 if (idx + 1 < g) {
3987 err = log_move_cursor_down(view, g - idx - 1);
3988 if (!err && g > s->selected_entry->idx + 1)
3989 err = log_move_cursor_down(view,
3990 g - s->first_displayed_entry->idx - 1);
3991 if (err)
3992 return err;
3993 } else if (idx + 1 > g)
3994 log_move_cursor_up(view, idx - g + 1, 0);
3995
3996 if (g < nlines && s->first_displayed_entry->idx == 0)
3997 s->selected = g - 1;
3998
3999 select_commit(s);
4000 return NULL;
4001
4002 }
4003
4004 static void
4005 horizontal_scroll_input(struct tog_view *view, int ch)
4006 {
4007
4008 switch (ch) {
4009 case KEY_LEFT:
4010 case 'h':
4011 view->x -= MIN(view->x, 2);
4012 if (view->x <= 0)
4013 view->count = 0;
4014 break;
4015 case KEY_RIGHT:
4016 case 'l':
4017 if (view->x + view->ncols / 2 < view->maxx)
4018 view->x += 2;
4019 else
4020 view->count = 0;
4021 break;
4022 case '0':
4023 view->x = 0;
4024 break;
4025 case '$':
4026 view->x = MAX(view->maxx - view->ncols / 2, 0);
4027 view->count = 0;
4028 break;
4029 default:
4030 break;
4031 }
4032 }
4033
4034 static const struct got_error *
4035 input_log_view(struct tog_view **new_view, struct tog_view *view, int ch)
4036 {
4037 const struct got_error *err = NULL;
4038 struct tog_log_view_state *s = &view->state.log;
4039 int eos, nscroll;
4040
4041 if (s->thread_args.load_all) {
4042 if (ch == CTRL('g') || ch == KEY_BACKSPACE)
4043 s->thread_args.load_all = 0;
4044 else if (s->thread_args.log_complete) {
4045 err = log_move_cursor_down(view, s->commits->ncommits);
4046 s->thread_args.load_all = 0;
4047 }
4048 if (err)
4049 return err;
4050 }
4051
4052 eos = nscroll = view->nlines - 1;
4053 if (view_is_hsplit_top(view))
4054 --eos; /* border */
4055
4056 if (view->gline)
4057 return log_goto_line(view, eos);
4058
4059 switch (ch) {
4060 case '&':
4061 err = limit_log_view(view);
4062 break;
4063 case 'q':
4064 s->quit = 1;
4065 break;
4066 case '0':
4067 case '$':
4068 case KEY_RIGHT:
4069 case 'l':
4070 case KEY_LEFT:
4071 case 'h':
4072 horizontal_scroll_input(view, ch);
4073 break;
4074 case 'k':
4075 case KEY_UP:
4076 case '<':
4077 case ',':
4078 case CTRL('p'):
4079 log_move_cursor_up(view, 0, 0);
4080 break;
4081 case 'g':
4082 case '=':
4083 case KEY_HOME:
4084 log_move_cursor_up(view, 0, 1);
4085 view->count = 0;
4086 break;
4087 case CTRL('u'):
4088 case 'u':
4089 nscroll /= 2;
4090 /* FALL THROUGH */
4091 case KEY_PPAGE:
4092 case CTRL('b'):
4093 case 'b':
4094 log_move_cursor_up(view, nscroll, 0);
4095 break;
4096 case 'j':
4097 case KEY_DOWN:
4098 case '>':
4099 case '.':
4100 case CTRL('n'):
4101 err = log_move_cursor_down(view, 0);
4102 break;
4103 case '@':
4104 s->use_committer = !s->use_committer;
4105 view->action = s->use_committer ?
4106 "show committer" : "show commit author";
4107 break;
4108 case 'G':
4109 case '*':
4110 case KEY_END: {
4111 /* We don't know yet how many commits, so we're forced to
4112 * traverse them all. */
4113 view->count = 0;
4114 s->thread_args.load_all = 1;
4115 if (!s->thread_args.log_complete)
4116 return trigger_log_thread(view, 0);
4117 err = log_move_cursor_down(view, s->commits->ncommits);
4118 s->thread_args.load_all = 0;
4119 break;
4120 }
4121 case CTRL('d'):
4122 case 'd':
4123 nscroll /= 2;
4124 /* FALL THROUGH */
4125 case KEY_NPAGE:
4126 case CTRL('f'):
4127 case 'f':
4128 case ' ':
4129 err = log_move_cursor_down(view, nscroll);
4130 break;
4131 case KEY_RESIZE:
4132 if (s->selected > view->nlines - 2)
4133 s->selected = view->nlines - 2;
4134 if (s->selected > s->commits->ncommits - 1)
4135 s->selected = s->commits->ncommits - 1;
4136 select_commit(s);
4137 if (s->commits->ncommits < view->nlines - 1 &&
4138 !s->thread_args.log_complete) {
4139 s->thread_args.commits_needed += (view->nlines - 1) -
4140 s->commits->ncommits;
4141 err = trigger_log_thread(view, 1);
4142 }
4143 break;
4144 case KEY_ENTER:
4145 case '\r':
4146 view->count = 0;
4147 if (s->selected_entry == NULL)
4148 break;
4149 err = view_request_new(new_view, view, TOG_VIEW_DIFF);
4150 break;
4151 case 'T':
4152 view->count = 0;
4153 if (s->selected_entry == NULL)
4154 break;
4155 err = view_request_new(new_view, view, TOG_VIEW_TREE);
4156 break;
4157 case KEY_BACKSPACE:
4158 case CTRL('l'):
4159 case 'B':
4160 view->count = 0;
4161 if (ch == KEY_BACKSPACE &&
4162 got_path_is_root_dir(s->in_repo_path))
4163 break;
4164 err = stop_log_thread(s);
4165 if (err)
4166 return err;
4167 if (ch == KEY_BACKSPACE) {
4168 char *parent_path;
4169 err = got_path_dirname(&parent_path, s->in_repo_path);
4170 if (err)
4171 return err;
4172 free(s->in_repo_path);
4173 s->in_repo_path = parent_path;
4174 s->thread_args.in_repo_path = s->in_repo_path;
4175 } else if (ch == CTRL('l')) {
4176 struct got_object_id *start_id;
4177 err = got_repo_match_object_id(&start_id, NULL,
4178 s->head_ref_name ? s->head_ref_name : GOT_REF_HEAD,
4179 GOT_OBJ_TYPE_COMMIT, &tog_refs, s->repo);
4180 if (err) {
4181 if (s->head_ref_name == NULL ||
4182 err->code != GOT_ERR_NOT_REF)
4183 return err;
4184 /* Try to cope with deleted references. */
4185 free(s->head_ref_name);
4186 s->head_ref_name = NULL;
4187 err = got_repo_match_object_id(&start_id,
4188 NULL, GOT_REF_HEAD, GOT_OBJ_TYPE_COMMIT,
4189 &tog_refs, s->repo);
4190 if (err)
4191 return err;
4192 }
4193 free(s->start_id);
4194 s->start_id = start_id;
4195 s->thread_args.start_id = s->start_id;
4196 } else /* 'B' */
4197 s->log_branches = !s->log_branches;
4198
4199 if (s->thread_args.pack_fds == NULL) {
4200 err = got_repo_pack_fds_open(&s->thread_args.pack_fds);
4201 if (err)
4202 return err;
4203 }
4204 err = got_repo_open(&s->thread_args.repo,
4205 got_repo_get_path(s->repo), NULL,
4206 s->thread_args.pack_fds);
4207 if (err)
4208 return err;
4209 tog_free_refs();
4210 err = tog_load_refs(s->repo, 0);
4211 if (err)
4212 return err;
4213 err = got_commit_graph_open(&s->thread_args.graph,
4214 s->in_repo_path, !s->log_branches);
4215 if (err)
4216 return err;
4217 err = got_commit_graph_iter_start(s->thread_args.graph,
4218 s->start_id, s->repo, NULL, NULL);
4219 if (err)
4220 return err;
4221 free_commits(&s->real_commits);
4222 free_commits(&s->limit_commits);
4223 s->first_displayed_entry = NULL;
4224 s->last_displayed_entry = NULL;
4225 s->selected_entry = NULL;
4226 s->selected = 0;
4227 s->thread_args.log_complete = 0;
4228 s->quit = 0;
4229 s->thread_args.commits_needed = view->lines;
4230 s->matched_entry = NULL;
4231 s->search_entry = NULL;
4232 view->offset = 0;
4233 break;
4234 case 'R':
4235 view->count = 0;
4236 err = view_request_new(new_view, view, TOG_VIEW_REF);
4237 break;
4238 default:
4239 view->count = 0;
4240 break;
4241 }
4242
4243 return err;
4244 }
4245
4246 static const struct got_error *
4247 apply_unveil(const char *repo_path, const char *worktree_path)
4248 {
4249 const struct got_error *error;
4250
4251 #ifdef PROFILE
4252 if (unveil("gmon.out", "rwc") != 0)
4253 return got_error_from_errno2("unveil", "gmon.out");
4254 #endif
4255 if (repo_path && unveil(repo_path, "r") != 0)
4256 return got_error_from_errno2("unveil", repo_path);
4257
4258 if (worktree_path && unveil(worktree_path, "rwc") != 0)
4259 return got_error_from_errno2("unveil", worktree_path);
4260
4261 if (unveil(GOT_TMPDIR_STR, "rwc") != 0)
4262 return got_error_from_errno2("unveil", GOT_TMPDIR_STR);
4263
4264 error = got_privsep_unveil_exec_helpers();
4265 if (error != NULL)
4266 return error;
4267
4268 if (unveil(NULL, NULL) != 0)
4269 return got_error_from_errno("unveil");
4270
4271 return NULL;
4272 }
4273
4274 static const struct got_error *
4275 init_mock_term(const char *test_script_path)
4276 {
4277 const struct got_error *err = NULL;
4278 const char *screen_dump_path;
4279 int in;
4280
4281 if (test_script_path == NULL || *test_script_path == '\0')
4282 return got_error_msg(GOT_ERR_IO, "TOG_TEST_SCRIPT not defined");
4283
4284 tog_io.f = fopen(test_script_path, "re");
4285 if (tog_io.f == NULL) {
4286 err = got_error_from_errno_fmt("fopen: %s",
4287 test_script_path);
4288 goto done;
4289 }
4290
4291 /* test mode, we don't want any output */
4292 tog_io.cout = fopen("/dev/null", "w+");
4293 if (tog_io.cout == NULL) {
4294 err = got_error_from_errno2("fopen", "/dev/null");
4295 goto done;
4296 }
4297
4298 in = dup(fileno(tog_io.cout));
4299 if (in == -1) {
4300 err = got_error_from_errno("dup");
4301 goto done;
4302 }
4303 tog_io.cin = fdopen(in, "r");
4304 if (tog_io.cin == NULL) {
4305 err = got_error_from_errno("fdopen");
4306 close(in);
4307 goto done;
4308 }
4309
4310 screen_dump_path = getenv("TOG_SCR_DUMP");
4311 if (screen_dump_path == NULL || *screen_dump_path == '\0')
4312 return got_error_msg(GOT_ERR_IO, "TOG_SCR_DUMP not defined");
4313 tog_io.sdump = fopen(screen_dump_path, "wex");
4314 if (tog_io.sdump == NULL) {
4315 err = got_error_from_errno2("fopen", screen_dump_path);
4316 goto done;
4317 }
4318
4319 if (fseeko(tog_io.f, 0L, SEEK_SET) == -1) {
4320 err = got_error_from_errno("fseeko");
4321 goto done;
4322 }
4323
4324 if (newterm(NULL, tog_io.cout, tog_io.cin) == NULL)
4325 err = got_error_msg(GOT_ERR_IO,
4326 "newterm: failed to initialise curses");
4327
4328 using_mock_io = 1;
4329
4330 done:
4331 if (err)
4332 tog_io_close();
4333 return err;
4334 }
4335
4336 static void
4337 init_curses(void)
4338 {
4339 /*
4340 * Override default signal handlers before starting ncurses.
4341 * This should prevent ncurses from installing its own
4342 * broken cleanup() signal handler.
4343 */
4344 signal(SIGWINCH, tog_sigwinch);
4345 signal(SIGPIPE, tog_sigpipe);
4346 signal(SIGCONT, tog_sigcont);
4347 signal(SIGINT, tog_sigint);
4348 signal(SIGTERM, tog_sigterm);
4349
4350 if (using_mock_io) /* In test mode we use a fake terminal */
4351 return;
4352
4353 initscr();
4354
4355 cbreak();
4356 halfdelay(1); /* Fast refresh while initial view is loading. */
4357 noecho();
4358 nonl();
4359 intrflush(stdscr, FALSE);
4360 keypad(stdscr, TRUE);
4361 curs_set(0);
4362 if (getenv("TOG_COLORS") != NULL) {
4363 start_color();
4364 use_default_colors();
4365 }
4366
4367 return;
4368 }
4369
4370 static const struct got_error *
4371 get_in_repo_path_from_argv0(char **in_repo_path, int argc, char *argv[],
4372 struct got_repository *repo, struct got_worktree *worktree)
4373 {
4374 const struct got_error *err = NULL;
4375
4376 if (argc == 0) {
4377 *in_repo_path = strdup("/");
4378 if (*in_repo_path == NULL)
4379 return got_error_from_errno("strdup");
4380 return NULL;
4381 }
4382
4383 if (worktree) {
4384 const char *prefix = got_worktree_get_path_prefix(worktree);
4385 char *p;
4386
4387 err = got_worktree_resolve_path(&p, worktree, argv[0]);
4388 if (err)
4389 return err;
4390 if (asprintf(in_repo_path, "%s%s%s", prefix,
4391 (p[0] != '\0' && !got_path_is_root_dir(prefix)) ? "/" : "",
4392 p) == -1) {
4393 err = got_error_from_errno("asprintf");
4394 *in_repo_path = NULL;
4395 }
4396 free(p);
4397 } else
4398 err = got_repo_map_path(in_repo_path, repo, argv[0]);
4399
4400 return err;
4401 }
4402
4403 static const struct got_error *
4404 cmd_log(int argc, char *argv[])
4405 {
4406 const struct got_error *error;
4407 struct got_repository *repo = NULL;
4408 struct got_worktree *worktree = NULL;
4409 struct got_object_id *start_id = NULL;
4410 char *in_repo_path = NULL, *repo_path = NULL, *cwd = NULL;
4411 char *start_commit = NULL, *label = NULL;
4412 struct got_reference *ref = NULL;
4413 const char *head_ref_name = NULL;
4414 int ch, log_branches = 0;
4415 struct tog_view *view;
4416 int *pack_fds = NULL;
4417
4418 while ((ch = getopt(argc, argv, "bc:r:")) != -1) {
4419 switch (ch) {
4420 case 'b':
4421 log_branches = 1;
4422 break;
4423 case 'c':
4424 start_commit = optarg;
4425 break;
4426 case 'r':
4427 repo_path = realpath(optarg, NULL);
4428 if (repo_path == NULL)
4429 return got_error_from_errno2("realpath",
4430 optarg);
4431 break;
4432 default:
4433 usage_log();
4434 /* NOTREACHED */
4435 }
4436 }
4437
4438 argc -= optind;
4439 argv += optind;
4440
4441 if (argc > 1)
4442 usage_log();
4443
4444 error = got_repo_pack_fds_open(&pack_fds);
4445 if (error != NULL)
4446 goto done;
4447
4448 if (repo_path == NULL) {
4449 cwd = getcwd(NULL, 0);
4450 if (cwd == NULL)
4451 return got_error_from_errno("getcwd");
4452 error = got_worktree_open(&worktree, cwd);
4453 if (error && error->code != GOT_ERR_NOT_WORKTREE)
4454 goto done;
4455 if (worktree)
4456 repo_path =
4457 strdup(got_worktree_get_repo_path(worktree));
4458 else
4459 repo_path = strdup(cwd);
4460 if (repo_path == NULL) {
4461 error = got_error_from_errno("strdup");
4462 goto done;
4463 }
4464 }
4465
4466 error = got_repo_open(&repo, repo_path, NULL, pack_fds);
4467 if (error != NULL)
4468 goto done;
4469
4470 error = get_in_repo_path_from_argv0(&in_repo_path, argc, argv,
4471 repo, worktree);
4472 if (error)
4473 goto done;
4474
4475 init_curses();
4476
4477 error = apply_unveil(got_repo_get_path(repo),
4478 worktree ? got_worktree_get_root_path(worktree) : NULL);
4479 if (error)
4480 goto done;
4481
4482 /* already loaded by tog_log_with_path()? */
4483 if (TAILQ_EMPTY(&tog_refs)) {
4484 error = tog_load_refs(repo, 0);
4485 if (error)
4486 goto done;
4487 }
4488
4489 if (start_commit == NULL) {
4490 error = got_repo_match_object_id(&start_id, &label,
4491 worktree ? got_worktree_get_head_ref_name(worktree) :
4492 GOT_REF_HEAD, GOT_OBJ_TYPE_COMMIT, &tog_refs, repo);
4493 if (error)
4494 goto done;
4495 head_ref_name = label;
4496 } else {
4497 error = got_ref_open(&ref, repo, start_commit, 0);
4498 if (error == NULL)
4499 head_ref_name = got_ref_get_name(ref);
4500 else if (error->code != GOT_ERR_NOT_REF)
4501 goto done;
4502 error = got_repo_match_object_id(&start_id, NULL,
4503 start_commit, GOT_OBJ_TYPE_COMMIT, &tog_refs, repo);
4504 if (error)
4505 goto done;
4506 }
4507
4508 view = view_open(0, 0, 0, 0, TOG_VIEW_LOG);
4509 if (view == NULL) {
4510 error = got_error_from_errno("view_open");
4511 goto done;
4512 }
4513 error = open_log_view(view, start_id, repo, head_ref_name,
4514 in_repo_path, log_branches);
4515 if (error)
4516 goto done;
4517 if (worktree) {
4518 /* Release work tree lock. */
4519 got_worktree_close(worktree);
4520 worktree = NULL;
4521 }
4522 error = view_loop(view);
4523 done:
4524 free(in_repo_path);
4525 free(repo_path);
4526 free(cwd);
4527 free(start_id);
4528 free(label);
4529 if (ref)
4530 got_ref_close(ref);
4531 if (repo) {
4532 const struct got_error *close_err = got_repo_close(repo);
4533 if (error == NULL)
4534 error = close_err;
4535 }
4536 if (worktree)
4537 got_worktree_close(worktree);
4538 if (pack_fds) {
4539 const struct got_error *pack_err =
4540 got_repo_pack_fds_close(pack_fds);
4541 if (error == NULL)
4542 error = pack_err;
4543 }
4544 tog_free_refs();
4545 return error;
4546 }
4547
4548 __dead static void
4549 usage_diff(void)
4550 {
4551 endwin();
4552 fprintf(stderr, "usage: %s diff [-aw] [-C number] [-r repository-path] "
4553 "object1 object2\n", getprogname());
4554 exit(1);
4555 }
4556
4557 static int
4558 match_line(const char *line, regex_t *regex, size_t nmatch,
4559 regmatch_t *regmatch)
4560 {
4561 return regexec(regex, line, nmatch, regmatch, 0) == 0;
4562 }
4563
4564 static struct tog_color *
4565 match_color(struct tog_colors *colors, const char *line)
4566 {
4567 struct tog_color *tc = NULL;
4568
4569 STAILQ_FOREACH(tc, colors, entry) {
4570 if (match_line(line, &tc->regex, 0, NULL))
4571 return tc;
4572 }
4573
4574 return NULL;
4575 }
4576
4577 static const struct got_error *
4578 add_matched_line(int *wtotal, const char *line, int wlimit, int col_tab_align,
4579 WINDOW *window, int skipcol, regmatch_t *regmatch)
4580 {
4581 const struct got_error *err = NULL;
4582 char *exstr = NULL;
4583 wchar_t *wline = NULL;
4584 int rme, rms, n, width, scrollx;
4585 int width0 = 0, width1 = 0, width2 = 0;
4586 char *seg0 = NULL, *seg1 = NULL, *seg2 = NULL;
4587
4588 *wtotal = 0;
4589
4590 rms = regmatch->rm_so;
4591 rme = regmatch->rm_eo;
4592
4593 err = expand_tab(&exstr, line);
4594 if (err)
4595 return err;
4596
4597 /* Split the line into 3 segments, according to match offsets. */
4598 seg0 = strndup(exstr, rms);
4599 if (seg0 == NULL) {
4600 err = got_error_from_errno("strndup");
4601 goto done;
4602 }
4603 seg1 = strndup(exstr + rms, rme - rms);
4604 if (seg1 == NULL) {
4605 err = got_error_from_errno("strndup");
4606 goto done;
4607 }
4608 seg2 = strdup(exstr + rme);
4609 if (seg2 == NULL) {
4610 err = got_error_from_errno("strndup");
4611 goto done;
4612 }
4613
4614 /* draw up to matched token if we haven't scrolled past it */
4615 err = format_line(&wline, &width0, NULL, seg0, 0, wlimit,
4616 col_tab_align, 1);
4617 if (err)
4618 goto done;
4619 n = MAX(width0 - skipcol, 0);
4620 if (n) {
4621 free(wline);
4622 err = format_line(&wline, &width, &scrollx, seg0, skipcol,
4623 wlimit, col_tab_align, 1);
4624 if (err)
4625 goto done;
4626 waddwstr(window, &wline[scrollx]);
4627 wlimit -= width;
4628 *wtotal += width;
4629 }
4630
4631 if (wlimit > 0) {
4632 int i = 0, w = 0;
4633 size_t wlen;
4634
4635 free(wline);
4636 err = format_line(&wline, &width1, NULL, seg1, 0, wlimit,
4637 col_tab_align, 1);
4638 if (err)
4639 goto done;
4640 wlen = wcslen(wline);
4641 while (i < wlen) {
4642 width = wcwidth(wline[i]);
4643 if (width == -1) {
4644 /* should not happen, tabs are expanded */
4645 err = got_error(GOT_ERR_RANGE);
4646 goto done;
4647 }
4648 if (width0 + w + width > skipcol)
4649 break;
4650 w += width;
4651 i++;
4652 }
4653 /* draw (visible part of) matched token (if scrolled into it) */
4654 if (width1 - w > 0) {
4655 wattron(window, A_STANDOUT);
4656 waddwstr(window, &wline[i]);
4657 wattroff(window, A_STANDOUT);
4658 wlimit -= (width1 - w);
4659 *wtotal += (width1 - w);
4660 }
4661 }
4662
4663 if (wlimit > 0) { /* draw rest of line */
4664 free(wline);
4665 if (skipcol > width0 + width1) {
4666 err = format_line(&wline, &width2, &scrollx, seg2,
4667 skipcol - (width0 + width1), wlimit,
4668 col_tab_align, 1);
4669 if (err)
4670 goto done;
4671 waddwstr(window, &wline[scrollx]);
4672 } else {
4673 err = format_line(&wline, &width2, NULL, seg2, 0,
4674 wlimit, col_tab_align, 1);
4675 if (err)
4676 goto done;
4677 waddwstr(window, wline);
4678 }
4679 *wtotal += width2;
4680 }
4681 done:
4682 free(wline);
4683 free(exstr);
4684 free(seg0);
4685 free(seg1);
4686 free(seg2);
4687 return err;
4688 }
4689
4690 static int
4691 gotoline(struct tog_view *view, int *lineno, int *nprinted)
4692 {
4693 FILE *f = NULL;
4694 int *eof, *first, *selected;
4695
4696 if (view->type == TOG_VIEW_DIFF) {
4697 struct tog_diff_view_state *s = &view->state.diff;
4698
4699 first = &s->first_displayed_line;
4700 selected = first;
4701 eof = &s->eof;
4702 f = s->f;
4703 } else if (view->type == TOG_VIEW_HELP) {
4704 struct tog_help_view_state *s = &view->state.help;
4705
4706 first = &s->first_displayed_line;
4707 selected = first;
4708 eof = &s->eof;
4709 f = s->f;
4710 } else if (view->type == TOG_VIEW_BLAME) {
4711 struct tog_blame_view_state *s = &view->state.blame;
4712
4713 first = &s->first_displayed_line;
4714 selected = &s->selected_line;
4715 eof = &s->eof;
4716 f = s->blame.f;
4717 } else
4718 return 0;
4719
4720 /* Center gline in the middle of the page like vi(1). */
4721 if (*lineno < view->gline - (view->nlines - 3) / 2)
4722 return 0;
4723 if (*first != 1 && (*lineno > view->gline - (view->nlines - 3) / 2)) {
4724 rewind(f);
4725 *eof = 0;
4726 *first = 1;
4727 *lineno = 0;
4728 *nprinted = 0;
4729 return 0;
4730 }
4731
4732 *selected = view->gline <= (view->nlines - 3) / 2 ?
4733 view->gline : (view->nlines - 3) / 2 + 1;
4734 view->gline = 0;
4735
4736 return 1;
4737 }
4738
4739 static const struct got_error *
4740 draw_file(struct tog_view *view, const char *header)
4741 {
4742 struct tog_diff_view_state *s = &view->state.diff;
4743 regmatch_t *regmatch = &view->regmatch;
4744 const struct got_error *err;
4745 int nprinted = 0;
4746 char *line;
4747 size_t linesize = 0;
4748 ssize_t linelen;
4749 wchar_t *wline;
4750 int width;
4751 int max_lines = view->nlines;
4752 int nlines = s->nlines;
4753 off_t line_offset;
4754
4755 s->lineno = s->first_displayed_line - 1;
4756 line_offset = s->lines[s->first_displayed_line - 1].offset;
4757 if (fseeko(s->f, line_offset, SEEK_SET) == -1)
4758 return got_error_from_errno("fseek");
4759
4760 werase(view->window);
4761
4762 if (view->gline > s->nlines - 1)
4763 view->gline = s->nlines - 1;
4764
4765 if (header) {
4766 int ln = view->gline ? view->gline <= (view->nlines - 3) / 2 ?
4767 1 : view->gline - (view->nlines - 3) / 2 :
4768 s->lineno + s->selected_line;
4769
4770 if (asprintf(&line, "[%d/%d] %s", ln, nlines, header) == -1)
4771 return got_error_from_errno("asprintf");
4772 err = format_line(&wline, &width, NULL, line, 0, view->ncols,
4773 0, 0);
4774 free(line);
4775 if (err)
4776 return err;
4777
4778 if (view_needs_focus_indication(view))
4779 wstandout(view->window);
4780 waddwstr(view->window, wline);
4781 free(wline);
4782 wline = NULL;
4783 while (width++ < view->ncols)
4784 waddch(view->window, ' ');
4785 if (view_needs_focus_indication(view))
4786 wstandend(view->window);
4787
4788 if (max_lines <= 1)
4789 return NULL;
4790 max_lines--;
4791 }
4792
4793 s->eof = 0;
4794 view->maxx = 0;
4795 line = NULL;
4796 while (max_lines > 0 && nprinted < max_lines) {
4797 enum got_diff_line_type linetype;
4798 attr_t attr = 0;
4799
4800 linelen = getline(&line, &linesize, s->f);
4801 if (linelen == -1) {
4802 if (feof(s->f)) {
4803 s->eof = 1;
4804 break;
4805 }
4806 free(line);
4807 return got_ferror(s->f, GOT_ERR_IO);
4808 }
4809
4810 if (++s->lineno < s->first_displayed_line)
4811 continue;
4812 if (view->gline && !gotoline(view, &s->lineno, &nprinted))
4813 continue;
4814 if (s->lineno == view->hiline)
4815 attr = A_STANDOUT;
4816
4817 /* Set view->maxx based on full line length. */
4818 err = format_line(&wline, &width, NULL, line, 0, INT_MAX, 0,
4819 view->x ? 1 : 0);
4820 if (err) {
4821 free(line);
4822 return err;
4823 }
4824 view->maxx = MAX(view->maxx, width);
4825 free(wline);
4826 wline = NULL;
4827
4828 linetype = s->lines[s->lineno].type;
4829 if (linetype > GOT_DIFF_LINE_LOGMSG &&
4830 linetype < GOT_DIFF_LINE_CONTEXT)
4831 attr |= COLOR_PAIR(linetype);
4832 if (attr)
4833 wattron(view->window, attr);
4834 if (s->first_displayed_line + nprinted == s->matched_line &&
4835 regmatch->rm_so >= 0 && regmatch->rm_so < regmatch->rm_eo) {
4836 err = add_matched_line(&width, line, view->ncols, 0,
4837 view->window, view->x, regmatch);
4838 if (err) {
4839 free(line);
4840 return err;
4841 }
4842 } else {
4843 int skip;
4844 err = format_line(&wline, &width, &skip, line,
4845 view->x, view->ncols, 0, view->x ? 1 : 0);
4846 if (err) {
4847 free(line);
4848 return err;
4849 }
4850 waddwstr(view->window, &wline[skip]);
4851 free(wline);
4852 wline = NULL;
4853 }
4854 if (s->lineno == view->hiline) {
4855 /* highlight full gline length */
4856 while (width++ < view->ncols)
4857 waddch(view->window, ' ');
4858 } else {
4859 if (width <= view->ncols - 1)
4860 waddch(view->window, '\n');
4861 }
4862 if (attr)
4863 wattroff(view->window, attr);
4864 if (++nprinted == 1)
4865 s->first_displayed_line = s->lineno;
4866 }
4867 free(line);
4868 if (nprinted >= 1)
4869 s->last_displayed_line = s->first_displayed_line +
4870 (nprinted - 1);
4871 else
4872 s->last_displayed_line = s->first_displayed_line;
4873
4874 view_border(view);
4875
4876 if (s->eof) {
4877 while (nprinted < view->nlines) {
4878 waddch(view->window, '\n');
4879 nprinted++;
4880 }
4881
4882 err = format_line(&wline, &width, NULL, TOG_EOF_STRING, 0,
4883 view->ncols, 0, 0);
4884 if (err) {
4885 return err;
4886 }
4887
4888 wstandout(view->window);
4889 waddwstr(view->window, wline);
4890 free(wline);
4891 wline = NULL;
4892 wstandend(view->window);
4893 }
4894
4895 return NULL;
4896 }
4897
4898 static char *
4899 get_datestr(time_t *time, char *datebuf)
4900 {
4901 struct tm mytm, *tm;
4902 char *p, *s;
4903
4904 tm = gmtime_r(time, &mytm);
4905 if (tm == NULL)
4906 return NULL;
4907 s = asctime_r(tm, datebuf);
4908 if (s == NULL)
4909 return NULL;
4910 p = strchr(s, '\n');
4911 if (p)
4912 *p = '\0';
4913 return s;
4914 }
4915
4916 static const struct got_error *
4917 add_line_metadata(struct got_diff_line **lines, size_t *nlines,
4918 off_t off, uint8_t type)
4919 {
4920 struct got_diff_line *p;
4921
4922 p = reallocarray(*lines, *nlines + 1, sizeof(**lines));
4923 if (p == NULL)
4924 return got_error_from_errno("reallocarray");
4925 *lines = p;
4926 (*lines)[*nlines].offset = off;
4927 (*lines)[*nlines].type = type;
4928 (*nlines)++;
4929
4930 return NULL;
4931 }
4932
4933 static const struct got_error *
4934 cat_diff(FILE *dst, FILE *src, struct got_diff_line **d_lines, size_t *d_nlines,
4935 struct got_diff_line *s_lines, size_t s_nlines)
4936 {
4937 struct got_diff_line *p;
4938 char buf[BUFSIZ];
4939 size_t i, r;
4940
4941 if (fseeko(src, 0L, SEEK_SET) == -1)
4942 return got_error_from_errno("fseeko");
4943
4944 for (;;) {
4945 r = fread(buf, 1, sizeof(buf), src);
4946 if (r == 0) {
4947 if (ferror(src))
4948 return got_error_from_errno("fread");
4949 if (feof(src))
4950 break;
4951 }
4952 if (fwrite(buf, 1, r, dst) != r)
4953 return got_ferror(dst, GOT_ERR_IO);
4954 }
4955
4956 if (s_nlines == 0 && *d_nlines == 0)
4957 return NULL;
4958
4959 /*
4960 * If commit info was in dst, increment line offsets
4961 * of the appended diff content, but skip s_lines[0]
4962 * because offset zero is already in *d_lines.
4963 */
4964 if (*d_nlines > 0) {
4965 for (i = 1; i < s_nlines; ++i)
4966 s_lines[i].offset += (*d_lines)[*d_nlines - 1].offset;
4967
4968 if (s_nlines > 0) {
4969 --s_nlines;
4970 ++s_lines;
4971 }
4972 }
4973
4974 p = reallocarray(*d_lines, *d_nlines + s_nlines, sizeof(*p));
4975 if (p == NULL) {
4976 /* d_lines is freed in close_diff_view() */
4977 return got_error_from_errno("reallocarray");
4978 }
4979
4980 *d_lines = p;
4981
4982 memcpy(*d_lines + *d_nlines, s_lines, s_nlines * sizeof(*s_lines));
4983 *d_nlines += s_nlines;
4984
4985 return NULL;
4986 }
4987
4988 static const struct got_error *
4989 write_commit_info(struct got_diff_line **lines, size_t *nlines,
4990 struct got_object_id *commit_id, struct got_reflist_head *refs,
4991 struct got_repository *repo, int ignore_ws, int force_text_diff,
4992 struct got_diffstat_cb_arg *dsa, FILE *outfile)
4993 {
4994 const struct got_error *err = NULL;
4995 char datebuf[26], *datestr;
4996 struct got_commit_object *commit;
4997 char *id_str = NULL, *logmsg = NULL, *s = NULL, *line;
4998 time_t committer_time;
4999 const char *author, *committer;
5000 char *refs_str = NULL;
5001 struct got_pathlist_entry *pe;
5002 off_t outoff = 0;
5003 int n;
5004
5005 err = build_refs_str(&refs_str, refs, commit_id, repo);
5006 if (err)
5007 return err;
5008
5009 err = got_object_open_as_commit(&commit, repo, commit_id);
5010 if (err)
5011 return err;
5012
5013 err = got_object_id_str(&id_str, commit_id);
5014 if (err) {
5015 err = got_error_from_errno("got_object_id_str");
5016 goto done;
5017 }
5018
5019 err = add_line_metadata(lines, nlines, 0, GOT_DIFF_LINE_NONE);
5020 if (err)
5021 goto done;
5022
5023 n = fprintf(outfile, "commit %s%s%s%s\n", id_str, refs_str ? " (" : "",
5024 refs_str ? refs_str : "", refs_str ? ")" : "");
5025 if (n < 0) {
5026 err = got_error_from_errno("fprintf");
5027 goto done;
5028 }
5029 outoff += n;
5030 err = add_line_metadata(lines, nlines, outoff, GOT_DIFF_LINE_META);
5031 if (err)
5032 goto done;
5033
5034 n = fprintf(outfile, "from: %s\n",
5035 got_object_commit_get_author(commit));
5036 if (n < 0) {
5037 err = got_error_from_errno("fprintf");
5038 goto done;
5039 }
5040 outoff += n;
5041 err = add_line_metadata(lines, nlines, outoff, GOT_DIFF_LINE_AUTHOR);
5042 if (err)
5043 goto done;
5044
5045 author = got_object_commit_get_author(commit);
5046 committer = got_object_commit_get_committer(commit);
5047 if (strcmp(author, committer) != 0) {
5048 n = fprintf(outfile, "via: %s\n", committer);
5049 if (n < 0) {
5050 err = got_error_from_errno("fprintf");
5051 goto done;
5052 }
5053 outoff += n;
5054 err = add_line_metadata(lines, nlines, outoff,
5055 GOT_DIFF_LINE_AUTHOR);
5056 if (err)
5057 goto done;
5058 }
5059 committer_time = got_object_commit_get_committer_time(commit);
5060 datestr = get_datestr(&committer_time, datebuf);
5061 if (datestr) {
5062 n = fprintf(outfile, "date: %s UTC\n", datestr);
5063 if (n < 0) {
5064 err = got_error_from_errno("fprintf");
5065 goto done;
5066 }
5067 outoff += n;
5068 err = add_line_metadata(lines, nlines, outoff,
5069 GOT_DIFF_LINE_DATE);
5070 if (err)
5071 goto done;
5072 }
5073 if (got_object_commit_get_nparents(commit) > 1) {
5074 const struct got_object_id_queue *parent_ids;
5075 struct got_object_qid *qid;
5076 int pn = 1;
5077 parent_ids = got_object_commit_get_parent_ids(commit);
5078 STAILQ_FOREACH(qid, parent_ids, entry) {
5079 err = got_object_id_str(&id_str, &qid->id);
5080 if (err)
5081 goto done;
5082 n = fprintf(outfile, "parent %d: %s\n", pn++, id_str);
5083 if (n < 0) {
5084 err = got_error_from_errno("fprintf");
5085 goto done;
5086 }
5087 outoff += n;
5088 err = add_line_metadata(lines, nlines, outoff,
5089 GOT_DIFF_LINE_META);
5090 if (err)
5091 goto done;
5092 free(id_str);
5093 id_str = NULL;
5094 }
5095 }
5096
5097 err = got_object_commit_get_logmsg(&logmsg, commit);
5098 if (err)
5099 goto done;
5100 s = logmsg;
5101 while ((line = strsep(&s, "\n")) != NULL) {
5102 n = fprintf(outfile, "%s\n", line);
5103 if (n < 0) {
5104 err = got_error_from_errno("fprintf");
5105 goto done;
5106 }
5107 outoff += n;
5108 err = add_line_metadata(lines, nlines, outoff,
5109 GOT_DIFF_LINE_LOGMSG);
5110 if (err)
5111 goto done;
5112 }
5113
5114 TAILQ_FOREACH(pe, dsa->paths, entry) {
5115 struct got_diff_changed_path *cp = pe->data;
5116 int pad = dsa->max_path_len - pe->path_len + 1;
5117
5118 n = fprintf(outfile, "%c %s%*c | %*d+ %*d-\n", cp->status,
5119 pe->path, pad, ' ', dsa->add_cols + 1, cp->add,
5120 dsa->rm_cols + 1, cp->rm);
5121 if (n < 0) {
5122 err = got_error_from_errno("fprintf");
5123 goto done;
5124 }
5125 outoff += n;
5126 err = add_line_metadata(lines, nlines, outoff,
5127 GOT_DIFF_LINE_CHANGES);
5128 if (err)
5129 goto done;
5130 }
5131
5132 fputc('\n', outfile);
5133 outoff++;
5134 err = add_line_metadata(lines, nlines, outoff, GOT_DIFF_LINE_NONE);
5135 if (err)
5136 goto done;
5137
5138 n = fprintf(outfile,
5139 "%d file%s changed, %d insertion%s(+), %d deletion%s(-)\n",
5140 dsa->nfiles, dsa->nfiles > 1 ? "s" : "", dsa->ins,
5141 dsa->ins != 1 ? "s" : "", dsa->del, dsa->del != 1 ? "s" : "");
5142 if (n < 0) {
5143 err = got_error_from_errno("fprintf");
5144 goto done;
5145 }
5146 outoff += n;
5147 err = add_line_metadata(lines, nlines, outoff, GOT_DIFF_LINE_NONE);
5148 if (err)
5149 goto done;
5150
5151 fputc('\n', outfile);
5152 outoff++;
5153 err = add_line_metadata(lines, nlines, outoff, GOT_DIFF_LINE_NONE);
5154 done:
5155 free(id_str);
5156 free(logmsg);
5157 free(refs_str);
5158 got_object_commit_close(commit);
5159 if (err) {
5160 free(*lines);
5161 *lines = NULL;
5162 *nlines = 0;
5163 }
5164 return err;
5165 }
5166
5167 static const struct got_error *
5168 create_diff(struct tog_diff_view_state *s)
5169 {
5170 const struct got_error *err = NULL;
5171 FILE *f = NULL, *tmp_diff_file = NULL;
5172 int obj_type;
5173 struct got_diff_line *lines = NULL;
5174 struct got_pathlist_head changed_paths;
5175
5176 TAILQ_INIT(&changed_paths);
5177
5178 free(s->lines);
5179 s->lines = malloc(sizeof(*s->lines));
5180 if (s->lines == NULL)
5181 return got_error_from_errno("malloc");
5182 s->nlines = 0;
5183
5184 f = got_opentemp();
5185 if (f == NULL) {
5186 err = got_error_from_errno("got_opentemp");
5187 goto done;
5188 }
5189 tmp_diff_file = got_opentemp();
5190 if (tmp_diff_file == NULL) {
5191 err = got_error_from_errno("got_opentemp");
5192 goto done;
5193 }
5194 if (s->f && fclose(s->f) == EOF) {
5195 err = got_error_from_errno("fclose");
5196 goto done;
5197 }
5198 s->f = f;
5199
5200 if (s->id1)
5201 err = got_object_get_type(&obj_type, s->repo, s->id1);
5202 else
5203 err = got_object_get_type(&obj_type, s->repo, s->id2);
5204 if (err)
5205 goto done;
5206
5207 switch (obj_type) {
5208 case GOT_OBJ_TYPE_BLOB:
5209 err = got_diff_objects_as_blobs(&s->lines, &s->nlines,
5210 s->f1, s->f2, s->fd1, s->fd2, s->id1, s->id2,
5211 s->label1, s->label2, tog_diff_algo, s->diff_context,
5212 s->ignore_whitespace, s->force_text_diff, NULL, s->repo,
5213 s->f);
5214 break;
5215 case GOT_OBJ_TYPE_TREE:
5216 err = got_diff_objects_as_trees(&s->lines, &s->nlines,
5217 s->f1, s->f2, s->fd1, s->fd2, s->id1, s->id2, NULL, "", "",
5218 tog_diff_algo, s->diff_context, s->ignore_whitespace,
5219 s->force_text_diff, NULL, s->repo, s->f);
5220 break;
5221 case GOT_OBJ_TYPE_COMMIT: {
5222 const struct got_object_id_queue *parent_ids;
5223 struct got_object_qid *pid;
5224 struct got_commit_object *commit2;
5225 struct got_reflist_head *refs;
5226 size_t nlines = 0;
5227 struct got_diffstat_cb_arg dsa = {
5228 0, 0, 0, 0, 0, 0,
5229 &changed_paths,
5230 s->ignore_whitespace,
5231 s->force_text_diff,
5232 tog_diff_algo
5233 };
5234
5235 lines = malloc(sizeof(*lines));
5236 if (lines == NULL) {
5237 err = got_error_from_errno("malloc");
5238 goto done;
5239 }
5240
5241 /* build diff first in tmp file then append to commit info */
5242 err = got_diff_objects_as_commits(&lines, &nlines,
5243 s->f1, s->f2, s->fd1, s->fd2, s->id1, s->id2, NULL,
5244 tog_diff_algo, s->diff_context, s->ignore_whitespace,
5245 s->force_text_diff, &dsa, s->repo, tmp_diff_file);
5246 if (err)
5247 break;
5248
5249 err = got_object_open_as_commit(&commit2, s->repo, s->id2);
5250 if (err)
5251 goto done;
5252 refs = got_reflist_object_id_map_lookup(tog_refs_idmap, s->id2);
5253 /* Show commit info if we're diffing to a parent/root commit. */
5254 if (s->id1 == NULL) {
5255 err = write_commit_info(&s->lines, &s->nlines, s->id2,
5256 refs, s->repo, s->ignore_whitespace,
5257 s->force_text_diff, &dsa, s->f);
5258 if (err)
5259 goto done;
5260 } else {
5261 parent_ids = got_object_commit_get_parent_ids(commit2);
5262 STAILQ_FOREACH(pid, parent_ids, entry) {
5263 if (got_object_id_cmp(s->id1, &pid->id) == 0) {
5264 err = write_commit_info(&s->lines,
5265 &s->nlines, s->id2, refs, s->repo,
5266 s->ignore_whitespace,
5267 s->force_text_diff, &dsa, s->f);
5268 if (err)
5269 goto done;
5270 break;
5271 }
5272 }
5273 }
5274 got_object_commit_close(commit2);
5275
5276 err = cat_diff(s->f, tmp_diff_file, &s->lines, &s->nlines,
5277 lines, nlines);
5278 break;
5279 }
5280 default:
5281 err = got_error(GOT_ERR_OBJ_TYPE);
5282 break;
5283 }
5284 done:
5285 free(lines);
5286 got_pathlist_free(&changed_paths, GOT_PATHLIST_FREE_ALL);
5287 if (s->f && fflush(s->f) != 0 && err == NULL)
5288 err = got_error_from_errno("fflush");
5289 if (tmp_diff_file && fclose(tmp_diff_file) == EOF && err == NULL)
5290 err = got_error_from_errno("fclose");
5291 return err;
5292 }
5293
5294 static void
5295 diff_view_indicate_progress(struct tog_view *view)
5296 {
5297 mvwaddstr(view->window, 0, 0, "diffing...");
5298 update_panels();
5299 doupdate();
5300 }
5301
5302 static const struct got_error *
5303 search_start_diff_view(struct tog_view *view)
5304 {
5305 struct tog_diff_view_state *s = &view->state.diff;
5306
5307 s->matched_line = 0;
5308 return NULL;
5309 }
5310
5311 static void
5312 search_setup_diff_view(struct tog_view *view, FILE **f, off_t **line_offsets,
5313 size_t *nlines, int **first, int **last, int **match, int **selected)
5314 {
5315 struct tog_diff_view_state *s = &view->state.diff;
5316
5317 *f = s->f;
5318 *nlines = s->nlines;
5319 *line_offsets = NULL;
5320 *match = &s->matched_line;
5321 *first = &s->first_displayed_line;
5322 *last = &s->last_displayed_line;
5323 *selected = &s->selected_line;
5324 }
5325
5326 static const struct got_error *
5327 search_next_view_match(struct tog_view *view)
5328 {
5329 const struct got_error *err = NULL;
5330 FILE *f;
5331 int lineno;
5332 char *line = NULL;
5333 size_t linesize = 0;
5334 ssize_t linelen;
5335 off_t *line_offsets;
5336 size_t nlines = 0;
5337 int *first, *last, *match, *selected;
5338
5339 if (!view->search_setup)
5340 return got_error_msg(GOT_ERR_NOT_IMPL,
5341 "view search not supported");
5342 view->search_setup(view, &f, &line_offsets, &nlines, &first, &last,
5343 &match, &selected);
5344
5345 if (!view->searching) {
5346 view->search_next_done = TOG_SEARCH_HAVE_MORE;
5347 return NULL;
5348 }
5349
5350 if (*match) {
5351 if (view->searching == TOG_SEARCH_FORWARD)
5352 lineno = *first + 1;
5353 else
5354 lineno = *first - 1;
5355 } else
5356 lineno = *first - 1 + *selected;
5357
5358 while (1) {
5359 off_t offset;
5360
5361 if (lineno <= 0 || lineno > nlines) {
5362 if (*match == 0) {
5363 view->search_next_done = TOG_SEARCH_HAVE_MORE;
5364 break;
5365 }
5366
5367 if (view->searching == TOG_SEARCH_FORWARD)
5368 lineno = 1;
5369 else
5370 lineno = nlines;
5371 }
5372
5373 offset = view->type == TOG_VIEW_DIFF ?
5374 view->state.diff.lines[lineno - 1].offset :
5375 line_offsets[lineno - 1];
5376 if (fseeko(f, offset, SEEK_SET) != 0) {
5377 free(line);
5378 return got_error_from_errno("fseeko");
5379 }
5380 linelen = getline(&line, &linesize, f);
5381 if (linelen != -1) {
5382 char *exstr;
5383 err = expand_tab(&exstr, line);
5384 if (err)
5385 break;
5386 if (match_line(exstr, &view->regex, 1,
5387 &view->regmatch)) {
5388 view->search_next_done = TOG_SEARCH_HAVE_MORE;
5389 *match = lineno;
5390 free(exstr);
5391 break;
5392 }
5393 free(exstr);
5394 }
5395 if (view->searching == TOG_SEARCH_FORWARD)
5396 lineno++;
5397 else
5398 lineno--;
5399 }
5400 free(line);
5401
5402 if (*match) {
5403 *first = *match;
5404 *selected = 1;
5405 }
5406
5407 return err;
5408 }
5409
5410 static const struct got_error *
5411 close_diff_view(struct tog_view *view)
5412 {
5413 const struct got_error *err = NULL;
5414 struct tog_diff_view_state *s = &view->state.diff;
5415
5416 free(s->id1);
5417 s->id1 = NULL;
5418 free(s->id2);
5419 s->id2 = NULL;
5420 if (s->f && fclose(s->f) == EOF)
5421 err = got_error_from_errno("fclose");
5422 s->f = NULL;
5423 if (s->f1 && fclose(s->f1) == EOF && err == NULL)
5424 err = got_error_from_errno("fclose");
5425 s->f1 = NULL;
5426 if (s->f2 && fclose(s->f2) == EOF && err == NULL)
5427 err = got_error_from_errno("fclose");
5428 s->f2 = NULL;
5429 if (s->fd1 != -1 && close(s->fd1) == -1 && err == NULL)
5430 err = got_error_from_errno("close");
5431 s->fd1 = -1;
5432 if (s->fd2 != -1 && close(s->fd2) == -1 && err == NULL)
5433 err = got_error_from_errno("close");
5434 s->fd2 = -1;
5435 free(s->lines);
5436 s->lines = NULL;
5437 s->nlines = 0;
5438 return err;
5439 }
5440
5441 static const struct got_error *
5442 open_diff_view(struct tog_view *view, struct got_object_id *id1,
5443 struct got_object_id *id2, const char *label1, const char *label2,
5444 int diff_context, int ignore_whitespace, int force_text_diff,
5445 struct tog_view *parent_view, struct got_repository *repo)
5446 {
5447 const struct got_error *err;
5448 struct tog_diff_view_state *s = &view->state.diff;
5449
5450 memset(s, 0, sizeof(*s));
5451 s->fd1 = -1;
5452 s->fd2 = -1;
5453
5454 if (id1 != NULL && id2 != NULL) {
5455 int type1, type2;
5456
5457 err = got_object_get_type(&type1, repo, id1);
5458 if (err)
5459 goto done;
5460 err = got_object_get_type(&type2, repo, id2);
5461 if (err)
5462 goto done;
5463
5464 if (type1 != type2) {
5465 err = got_error(GOT_ERR_OBJ_TYPE);
5466 goto done;
5467 }
5468 }
5469 s->first_displayed_line = 1;
5470 s->last_displayed_line = view->nlines;
5471 s->selected_line = 1;
5472 s->repo = repo;
5473 s->id1 = id1;
5474 s->id2 = id2;
5475 s->label1 = label1;
5476 s->label2 = label2;
5477
5478 if (id1) {
5479 s->id1 = got_object_id_dup(id1);
5480 if (s->id1 == NULL) {
5481 err = got_error_from_errno("got_object_id_dup");
5482 goto done;
5483 }
5484 } else
5485 s->id1 = NULL;
5486
5487 s->id2 = got_object_id_dup(id2);
5488 if (s->id2 == NULL) {
5489 err = got_error_from_errno("got_object_id_dup");
5490 goto done;
5491 }
5492
5493 s->f1 = got_opentemp();
5494 if (s->f1 == NULL) {
5495 err = got_error_from_errno("got_opentemp");
5496 goto done;
5497 }
5498
5499 s->f2 = got_opentemp();
5500 if (s->f2 == NULL) {
5501 err = got_error_from_errno("got_opentemp");
5502 goto done;
5503 }
5504
5505 s->fd1 = got_opentempfd();
5506 if (s->fd1 == -1) {
5507 err = got_error_from_errno("got_opentempfd");
5508 goto done;
5509 }
5510
5511 s->fd2 = got_opentempfd();
5512 if (s->fd2 == -1) {
5513 err = got_error_from_errno("got_opentempfd");
5514 goto done;
5515 }
5516
5517 s->diff_context = diff_context;
5518 s->ignore_whitespace = ignore_whitespace;
5519 s->force_text_diff = force_text_diff;
5520 s->parent_view = parent_view;
5521 s->repo = repo;
5522
5523 if (has_colors() && getenv("TOG_COLORS") != NULL && !using_mock_io) {
5524 int rc;
5525
5526 rc = init_pair(GOT_DIFF_LINE_MINUS,
5527 get_color_value("TOG_COLOR_DIFF_MINUS"), -1);
5528 if (rc != ERR)
5529 rc = init_pair(GOT_DIFF_LINE_PLUS,
5530 get_color_value("TOG_COLOR_DIFF_PLUS"), -1);
5531 if (rc != ERR)
5532 rc = init_pair(GOT_DIFF_LINE_HUNK,
5533 get_color_value("TOG_COLOR_DIFF_CHUNK_HEADER"), -1);
5534 if (rc != ERR)
5535 rc = init_pair(GOT_DIFF_LINE_META,
5536 get_color_value("TOG_COLOR_DIFF_META"), -1);
5537 if (rc != ERR)
5538 rc = init_pair(GOT_DIFF_LINE_CHANGES,
5539 get_color_value("TOG_COLOR_DIFF_META"), -1);
5540 if (rc != ERR)
5541 rc = init_pair(GOT_DIFF_LINE_BLOB_MIN,
5542 get_color_value("TOG_COLOR_DIFF_META"), -1);
5543 if (rc != ERR)
5544 rc = init_pair(GOT_DIFF_LINE_BLOB_PLUS,
5545 get_color_value("TOG_COLOR_DIFF_META"), -1);
5546 if (rc != ERR)
5547 rc = init_pair(GOT_DIFF_LINE_AUTHOR,
5548 get_color_value("TOG_COLOR_AUTHOR"), -1);
5549 if (rc != ERR)
5550 rc = init_pair(GOT_DIFF_LINE_DATE,
5551 get_color_value("TOG_COLOR_DATE"), -1);
5552 if (rc == ERR) {
5553 err = got_error(GOT_ERR_RANGE);
5554 goto done;
5555 }
5556 }
5557
5558 if (parent_view && parent_view->type == TOG_VIEW_LOG &&
5559 view_is_splitscreen(view))
5560 show_log_view(parent_view); /* draw border */
5561 diff_view_indicate_progress(view);
5562
5563 err = create_diff(s);
5564
5565 view->show = show_diff_view;
5566 view->input = input_diff_view;
5567 view->reset = reset_diff_view;
5568 view->close = close_diff_view;
5569 view->search_start = search_start_diff_view;
5570 view->search_setup = search_setup_diff_view;
5571 view->search_next = search_next_view_match;
5572 done:
5573 if (err) {
5574 if (view->close == NULL)
5575 close_diff_view(view);
5576 view_close(view);
5577 }
5578 return err;
5579 }
5580
5581 static const struct got_error *
5582 show_diff_view(struct tog_view *view)
5583 {
5584 const struct got_error *err;
5585 struct tog_diff_view_state *s = &view->state.diff;
5586 char *id_str1 = NULL, *id_str2, *header;
5587 const char *label1, *label2;
5588
5589 if (s->id1) {
5590 err = got_object_id_str(&id_str1, s->id1);
5591 if (err)
5592 return err;
5593 label1 = s->label1 ? s->label1 : id_str1;
5594 } else
5595 label1 = "/dev/null";
5596
5597 err = got_object_id_str(&id_str2, s->id2);
5598 if (err)
5599 return err;
5600 label2 = s->label2 ? s->label2 : id_str2;
5601
5602 if (asprintf(&header, "diff %s %s", label1, label2) == -1) {
5603 err = got_error_from_errno("asprintf");
5604 free(id_str1);
5605 free(id_str2);
5606 return err;
5607 }
5608 free(id_str1);
5609 free(id_str2);
5610
5611 err = draw_file(view, header);
5612 free(header);
5613 return err;
5614 }
5615
5616 static const struct got_error *
5617 set_selected_commit(struct tog_diff_view_state *s,
5618 struct commit_queue_entry *entry)
5619 {
5620 const struct got_error *err;
5621 const struct got_object_id_queue *parent_ids;
5622 struct got_commit_object *selected_commit;
5623 struct got_object_qid *pid;
5624
5625 free(s->id2);
5626 s->id2 = got_object_id_dup(entry->id);
5627 if (s->id2 == NULL)
5628 return got_error_from_errno("got_object_id_dup");
5629
5630 err = got_object_open_as_commit(&selected_commit, s->repo, entry->id);
5631 if (err)
5632 return err;
5633 parent_ids = got_object_commit_get_parent_ids(selected_commit);
5634 free(s->id1);
5635 pid = STAILQ_FIRST(parent_ids);
5636 s->id1 = pid ? got_object_id_dup(&pid->id) : NULL;
5637 got_object_commit_close(selected_commit);
5638 return NULL;
5639 }
5640
5641 static const struct got_error *
5642 reset_diff_view(struct tog_view *view)
5643 {
5644 struct tog_diff_view_state *s = &view->state.diff;
5645
5646 view->count = 0;
5647 wclear(view->window);
5648 s->first_displayed_line = 1;
5649 s->last_displayed_line = view->nlines;
5650 s->matched_line = 0;
5651 diff_view_indicate_progress(view);
5652 return create_diff(s);
5653 }
5654
5655 static void
5656 diff_prev_index(struct tog_diff_view_state *s, enum got_diff_line_type type)
5657 {
5658 int start, i;
5659
5660 i = start = s->first_displayed_line - 1;
5661
5662 while (s->lines[i].type != type) {
5663 if (i == 0)
5664 i = s->nlines - 1;
5665 if (--i == start)
5666 return; /* do nothing, requested type not in file */
5667 }
5668
5669 s->selected_line = 1;
5670 s->first_displayed_line = i;
5671 }
5672
5673 static void
5674 diff_next_index(struct tog_diff_view_state *s, enum got_diff_line_type type)
5675 {
5676 int start, i;
5677
5678 i = start = s->first_displayed_line + 1;
5679
5680 while (s->lines[i].type != type) {
5681 if (i == s->nlines - 1)
5682 i = 0;
5683 if (++i == start)
5684 return; /* do nothing, requested type not in file */
5685 }
5686
5687 s->selected_line = 1;
5688 s->first_displayed_line = i;
5689 }
5690
5691 static struct got_object_id *get_selected_commit_id(struct tog_blame_line *,
5692 int, int, int);
5693 static struct got_object_id *get_annotation_for_line(struct tog_blame_line *,
5694 int, int);
5695
5696 static const struct got_error *
5697 input_diff_view(struct tog_view **new_view, struct tog_view *view, int ch)
5698 {
5699 const struct got_error *err = NULL;
5700 struct tog_diff_view_state *s = &view->state.diff;
5701 struct tog_log_view_state *ls;
5702 struct commit_queue_entry *old_selected_entry;
5703 char *line = NULL;
5704 size_t linesize = 0;
5705 ssize_t linelen;
5706 int i, nscroll = view->nlines - 1, up = 0;
5707
5708 s->lineno = s->first_displayed_line - 1 + s->selected_line;
5709
5710 switch (ch) {
5711 case '0':
5712 case '$':
5713 case KEY_RIGHT:
5714 case 'l':
5715 case KEY_LEFT:
5716 case 'h':
5717 horizontal_scroll_input(view, ch);
5718 break;
5719 case 'a':
5720 case 'w':
5721 if (ch == 'a') {
5722 s->force_text_diff = !s->force_text_diff;
5723 view->action = s->force_text_diff ?
5724 "force ASCII text enabled" :
5725 "force ASCII text disabled";
5726 }
5727 else if (ch == 'w') {
5728 s->ignore_whitespace = !s->ignore_whitespace;
5729 view->action = s->ignore_whitespace ?
5730 "ignore whitespace enabled" :
5731 "ignore whitespace disabled";
5732 }
5733 err = reset_diff_view(view);
5734 break;
5735 case 'g':
5736 case KEY_HOME:
5737 s->first_displayed_line = 1;
5738 view->count = 0;
5739 break;
5740 case 'G':
5741 case KEY_END:
5742 view->count = 0;
5743 if (s->eof)
5744 break;
5745
5746 s->first_displayed_line = (s->nlines - view->nlines) + 2;
5747 s->eof = 1;
5748 break;
5749 case 'k':
5750 case KEY_UP:
5751 case CTRL('p'):
5752 if (s->first_displayed_line > 1)
5753 s->first_displayed_line--;
5754 else
5755 view->count = 0;
5756 break;
5757 case CTRL('u'):
5758 case 'u':
5759 nscroll /= 2;
5760 /* FALL THROUGH */
5761 case KEY_PPAGE:
5762 case CTRL('b'):
5763 case 'b':
5764 if (s->first_displayed_line == 1) {
5765 view->count = 0;
5766 break;
5767 }
5768 i = 0;
5769 while (i++ < nscroll && s->first_displayed_line > 1)
5770 s->first_displayed_line--;
5771 break;
5772 case 'j':
5773 case KEY_DOWN:
5774 case CTRL('n'):
5775 if (!s->eof)
5776 s->first_displayed_line++;
5777 else
5778 view->count = 0;
5779 break;
5780 case CTRL('d'):
5781 case 'd':
5782 nscroll /= 2;
5783 /* FALL THROUGH */
5784 case KEY_NPAGE:
5785 case CTRL('f'):
5786 case 'f':
5787 case ' ':
5788 if (s->eof) {
5789 view->count = 0;
5790 break;
5791 }
5792 i = 0;
5793 while (!s->eof && i++ < nscroll) {
5794 linelen = getline(&line, &linesize, s->f);
5795 s->first_displayed_line++;
5796 if (linelen == -1) {
5797 if (feof(s->f)) {
5798 s->eof = 1;
5799 } else
5800 err = got_ferror(s->f, GOT_ERR_IO);
5801 break;
5802 }
5803 }
5804 free(line);
5805 break;
5806 case '(':
5807 diff_prev_index(s, GOT_DIFF_LINE_BLOB_MIN);
5808 break;
5809 case ')':
5810 diff_next_index(s, GOT_DIFF_LINE_BLOB_MIN);
5811 break;
5812 case '{':
5813 diff_prev_index(s, GOT_DIFF_LINE_HUNK);
5814 break;
5815 case '}':
5816 diff_next_index(s, GOT_DIFF_LINE_HUNK);
5817 break;
5818 case '[':
5819 if (s->diff_context > 0) {
5820 s->diff_context--;
5821 s->matched_line = 0;
5822 diff_view_indicate_progress(view);
5823 err = create_diff(s);
5824 if (s->first_displayed_line + view->nlines - 1 >
5825 s->nlines) {
5826 s->first_displayed_line = 1;
5827 s->last_displayed_line = view->nlines;
5828 }
5829 } else
5830 view->count = 0;
5831 break;
5832 case ']':
5833 if (s->diff_context < GOT_DIFF_MAX_CONTEXT) {
5834 s->diff_context++;
5835 s->matched_line = 0;
5836 diff_view_indicate_progress(view);
5837 err = create_diff(s);
5838 } else
5839 view->count = 0;
5840 break;
5841 case '<':
5842 case ',':
5843 case 'K':
5844 up = 1;
5845 /* FALL THROUGH */
5846 case '>':
5847 case '.':
5848 case 'J':
5849 if (s->parent_view == NULL) {
5850 view->count = 0;
5851 break;
5852 }
5853 s->parent_view->count = view->count;
5854
5855 if (s->parent_view->type == TOG_VIEW_LOG) {
5856 ls = &s->parent_view->state.log;
5857 old_selected_entry = ls->selected_entry;
5858
5859 err = input_log_view(NULL, s->parent_view,
5860 up ? KEY_UP : KEY_DOWN);
5861 if (err)
5862 break;
5863 view->count = s->parent_view->count;
5864
5865 if (old_selected_entry == ls->selected_entry)
5866 break;
5867
5868 err = set_selected_commit(s, ls->selected_entry);
5869 if (err)
5870 break;
5871 } else if (s->parent_view->type == TOG_VIEW_BLAME) {
5872 struct tog_blame_view_state *bs;
5873 struct got_object_id *id, *prev_id;
5874
5875 bs = &s->parent_view->state.blame;
5876 prev_id = get_annotation_for_line(bs->blame.lines,
5877 bs->blame.nlines, bs->last_diffed_line);
5878
5879 err = input_blame_view(&view, s->parent_view,
5880 up ? KEY_UP : KEY_DOWN);
5881 if (err)
5882 break;
5883 view->count = s->parent_view->count;
5884
5885 if (prev_id == NULL)
5886 break;
5887 id = get_selected_commit_id(bs->blame.lines,
5888 bs->blame.nlines, bs->first_displayed_line,
5889 bs->selected_line);
5890 if (id == NULL)
5891 break;
5892
5893 if (!got_object_id_cmp(prev_id, id))
5894 break;
5895
5896 err = input_blame_view(&view, s->parent_view, KEY_ENTER);
5897 if (err)
5898 break;
5899 }
5900 s->first_displayed_line = 1;
5901 s->last_displayed_line = view->nlines;
5902 s->matched_line = 0;
5903 view->x = 0;
5904
5905 diff_view_indicate_progress(view);
5906 err = create_diff(s);
5907 break;
5908 default:
5909 view->count = 0;
5910 break;
5911 }
5912
5913 return err;
5914 }
5915
5916 static const struct got_error *
5917 cmd_diff(int argc, char *argv[])
5918 {
5919 const struct got_error *error;
5920 struct got_repository *repo = NULL;
5921 struct got_worktree *worktree = NULL;
5922 struct got_object_id *id1 = NULL, *id2 = NULL;
5923 char *repo_path = NULL, *cwd = NULL;
5924 char *id_str1 = NULL, *id_str2 = NULL;
5925 char *label1 = NULL, *label2 = NULL;
5926 int diff_context = 3, ignore_whitespace = 0;
5927 int ch, force_text_diff = 0;
5928 const char *errstr;
5929 struct tog_view *view;
5930 int *pack_fds = NULL;
5931
5932 while ((ch = getopt(argc, argv, "aC:r:w")) != -1) {
5933 switch (ch) {
5934 case 'a':
5935 force_text_diff = 1;
5936 break;
5937 case 'C':
5938 diff_context = strtonum(optarg, 0, GOT_DIFF_MAX_CONTEXT,
5939 &errstr);
5940 if (errstr != NULL)
5941 errx(1, "number of context lines is %s: %s",
5942 errstr, errstr);
5943 break;
5944 case 'r':
5945 repo_path = realpath(optarg, NULL);
5946 if (repo_path == NULL)
5947 return got_error_from_errno2("realpath",
5948 optarg);
5949 got_path_strip_trailing_slashes(repo_path);
5950 break;
5951 case 'w':
5952 ignore_whitespace = 1;
5953 break;
5954 default:
5955 usage_diff();
5956 /* NOTREACHED */
5957 }
5958 }
5959
5960 argc -= optind;
5961 argv += optind;
5962
5963 if (argc == 0) {
5964 usage_diff(); /* TODO show local worktree changes */
5965 } else if (argc == 2) {
5966 id_str1 = argv[0];
5967 id_str2 = argv[1];
5968 } else
5969 usage_diff();
5970
5971 error = got_repo_pack_fds_open(&pack_fds);
5972 if (error)
5973 goto done;
5974
5975 if (repo_path == NULL) {
5976 cwd = getcwd(NULL, 0);
5977 if (cwd == NULL)
5978 return got_error_from_errno("getcwd");
5979 error = got_worktree_open(&worktree, cwd);
5980 if (error && error->code != GOT_ERR_NOT_WORKTREE)
5981 goto done;
5982 if (worktree)
5983 repo_path =
5984 strdup(got_worktree_get_repo_path(worktree));
5985 else
5986 repo_path = strdup(cwd);
5987 if (repo_path == NULL) {
5988 error = got_error_from_errno("strdup");
5989 goto done;
5990 }
5991 }
5992
5993 error = got_repo_open(&repo, repo_path, NULL, pack_fds);
5994 if (error)
5995 goto done;
5996
5997 init_curses();
5998
5999 error = apply_unveil(got_repo_get_path(repo), NULL);
6000 if (error)
6001 goto done;
6002
6003 error = tog_load_refs(repo, 0);
6004 if (error)
6005 goto done;
6006
6007 error = got_repo_match_object_id(&id1, &label1, id_str1,
6008 GOT_OBJ_TYPE_ANY, &tog_refs, repo);
6009 if (error)
6010 goto done;
6011
6012 error = got_repo_match_object_id(&id2, &label2, id_str2,
6013 GOT_OBJ_TYPE_ANY, &tog_refs, repo);
6014 if (error)
6015 goto done;
6016
6017 view = view_open(0, 0, 0, 0, TOG_VIEW_DIFF);
6018 if (view == NULL) {
6019 error = got_error_from_errno("view_open");
6020 goto done;
6021 }
6022 error = open_diff_view(view, id1, id2, label1, label2, diff_context,
6023 ignore_whitespace, force_text_diff, NULL, repo);
6024 if (error)
6025 goto done;
6026 error = view_loop(view);
6027 done:
6028 free(label1);
6029 free(label2);
6030 free(repo_path);
6031 free(cwd);
6032 if (repo) {
6033 const struct got_error *close_err = got_repo_close(repo);
6034 if (error == NULL)
6035 error = close_err;
6036 }
6037 if (worktree)
6038 got_worktree_close(worktree);
6039 if (pack_fds) {
6040 const struct got_error *pack_err =
6041 got_repo_pack_fds_close(pack_fds);
6042 if (error == NULL)
6043 error = pack_err;
6044 }
6045 tog_free_refs();
6046 return error;
6047 }
6048
6049 __dead static void
6050 usage_blame(void)
6051 {
6052 endwin();
6053 fprintf(stderr,
6054 "usage: %s blame [-c commit] [-r repository-path] path\n",
6055 getprogname());
6056 exit(1);
6057 }
6058
6059 struct tog_blame_line {
6060 int annotated;
6061 struct got_object_id *id;
6062 };
6063
6064 static const struct got_error *
6065 draw_blame(struct tog_view *view)
6066 {
6067 struct tog_blame_view_state *s = &view->state.blame;
6068 struct tog_blame *blame = &s->blame;
6069 regmatch_t *regmatch = &view->regmatch;
6070 const struct got_error *err;
6071 int lineno = 0, nprinted = 0;
6072 char *line = NULL;
6073 size_t linesize = 0;
6074 ssize_t linelen;
6075 wchar_t *wline;
6076 int width;
6077 struct tog_blame_line *blame_line;
6078 struct got_object_id *prev_id = NULL;
6079 char *id_str;
6080 struct tog_color *tc;
6081
6082 err = got_object_id_str(&id_str, &s->blamed_commit->id);
6083 if (err)
6084 return err;
6085
6086 rewind(blame->f);
6087 werase(view->window);
6088
6089 if (asprintf(&line, "commit %s", id_str) == -1) {
6090 err = got_error_from_errno("asprintf");
6091 free(id_str);
6092 return err;
6093 }
6094
6095 err = format_line(&wline, &width, NULL, line, 0, view->ncols, 0, 0);
6096 free(line);
6097 line = NULL;
6098 if (err)
6099 return err;
6100 if (view_needs_focus_indication(view))
6101 wstandout(view->window);
6102 tc = get_color(&s->colors, TOG_COLOR_COMMIT);
6103 if (tc)
6104 wattr_on(view->window, COLOR_PAIR(tc->colorpair), NULL);
6105 waddwstr(view->window, wline);
6106 while (width++ < view->ncols)
6107 waddch(view->window, ' ');
6108 if (tc)
6109 wattr_off(view->window, COLOR_PAIR(tc->colorpair), NULL);
6110 if (view_needs_focus_indication(view))
6111 wstandend(view->window);
6112 free(wline);
6113 wline = NULL;
6114
6115 if (view->gline > blame->nlines)
6116 view->gline = blame->nlines;
6117
6118 if (tog_io.wait_for_ui) {
6119 struct tog_blame_thread_args *bta = &s->blame.thread_args;
6120 int rc;
6121
6122 rc = pthread_cond_wait(&bta->blame_complete, &tog_mutex);
6123 if (rc)
6124 return got_error_set_errno(rc, "pthread_cond_wait");
6125 tog_io.wait_for_ui = 0;
6126 }
6127
6128 if (asprintf(&line, "[%d/%d] %s%s", view->gline ? view->gline :
6129 s->first_displayed_line - 1 + s->selected_line, blame->nlines,
6130 s->blame_complete ? "" : "annotating... ", s->path) == -1) {
6131 free(id_str);
6132 return got_error_from_errno("asprintf");
6133 }
6134 free(id_str);
6135 err = format_line(&wline, &width, NULL, line, 0, view->ncols, 0, 0);
6136 free(line);
6137 line = NULL;
6138 if (err)
6139 return err;
6140 waddwstr(view->window, wline);
6141 free(wline);
6142 wline = NULL;
6143 if (width < view->ncols - 1)
6144 waddch(view->window, '\n');
6145
6146 s->eof = 0;
6147 view->maxx = 0;
6148 while (nprinted < view->nlines - 2) {
6149 linelen = getline(&line, &linesize, blame->f);
6150 if (linelen == -1) {
6151 if (feof(blame->f)) {
6152 s->eof = 1;
6153 break;
6154 }
6155 free(line);
6156 return got_ferror(blame->f, GOT_ERR_IO);
6157 }
6158 if (++lineno < s->first_displayed_line)
6159 continue;
6160 if (view->gline && !gotoline(view, &lineno, &nprinted))
6161 continue;
6162
6163 /* Set view->maxx based on full line length. */
6164 err = format_line(&wline, &width, NULL, line, 0, INT_MAX, 9, 1);
6165 if (err) {
6166 free(line);
6167 return err;
6168 }
6169 free(wline);
6170 wline = NULL;
6171 view->maxx = MAX(view->maxx, width);
6172
6173 if (nprinted == s->selected_line - 1)
6174 wstandout(view->window);
6175
6176 if (blame->nlines > 0) {
6177 blame_line = &blame->lines[lineno - 1];
6178 if (blame_line->annotated && prev_id &&
6179 got_object_id_cmp(prev_id, blame_line->id) == 0 &&
6180 !(nprinted == s->selected_line - 1)) {
6181 waddstr(view->window, " ");
6182 } else if (blame_line->annotated) {
6183 char *id_str;
6184 err = got_object_id_str(&id_str,
6185 blame_line->id);
6186 if (err) {
6187 free(line);
6188 return err;
6189 }
6190 tc = get_color(&s->colors, TOG_COLOR_COMMIT);
6191 if (tc)
6192 wattr_on(view->window,
6193 COLOR_PAIR(tc->colorpair), NULL);
6194 wprintw(view->window, "%.8s", id_str);
6195 if (tc)
6196 wattr_off(view->window,
6197 COLOR_PAIR(tc->colorpair), NULL);
6198 free(id_str);
6199 prev_id = blame_line->id;
6200 } else {
6201 waddstr(view->window, "........");
6202 prev_id = NULL;
6203 }
6204 } else {
6205 waddstr(view->window, "........");
6206 prev_id = NULL;
6207 }
6208
6209 if (nprinted == s->selected_line - 1)
6210 wstandend(view->window);
6211 waddstr(view->window, " ");
6212
6213 if (view->ncols <= 9) {
6214 width = 9;
6215 } else if (s->first_displayed_line + nprinted ==
6216 s->matched_line &&
6217 regmatch->rm_so >= 0 && regmatch->rm_so < regmatch->rm_eo) {
6218 err = add_matched_line(&width, line, view->ncols - 9, 9,
6219 view->window, view->x, regmatch);
6220 if (err) {
6221 free(line);
6222 return err;
6223 }
6224 width += 9;
6225 } else {
6226 int skip;
6227 err = format_line(&wline, &width, &skip, line,
6228 view->x, view->ncols - 9, 9, 1);
6229 if (err) {
6230 free(line);
6231 return err;
6232 }
6233 waddwstr(view->window, &wline[skip]);
6234 width += 9;
6235 free(wline);
6236 wline = NULL;
6237 }
6238
6239 if (width <= view->ncols - 1)
6240 waddch(view->window, '\n');
6241 if (++nprinted == 1)
6242 s->first_displayed_line = lineno;
6243 }
6244 free(line);
6245 s->last_displayed_line = lineno;
6246
6247 view_border(view);
6248
6249 return NULL;
6250 }
6251
6252 static const struct got_error *
6253 blame_cb(void *arg, int nlines, int lineno,
6254 struct got_commit_object *commit, struct got_object_id *id)
6255 {
6256 const struct got_error *err = NULL;
6257 struct tog_blame_cb_args *a = arg;
6258 struct tog_blame_line *line;
6259 int errcode;
6260
6261 if (nlines != a->nlines ||
6262 (lineno != -1 && lineno < 1) || lineno > a->nlines)
6263 return got_error(GOT_ERR_RANGE);
6264
6265 errcode = pthread_mutex_lock(&tog_mutex);
6266 if (errcode)
6267 return got_error_set_errno(errcode, "pthread_mutex_lock");
6268
6269 if (*a->quit) { /* user has quit the blame view */
6270 err = got_error(GOT_ERR_ITER_COMPLETED);
6271 goto done;
6272 }
6273
6274 if (lineno == -1)
6275 goto done; /* no change in this commit */
6276
6277 line = &a->lines[lineno - 1];
6278 if (line->annotated)
6279 goto done;
6280
6281 line->id = got_object_id_dup(id);
6282 if (line->id == NULL) {
6283 err = got_error_from_errno("got_object_id_dup");
6284 goto done;
6285 }
6286 line->annotated = 1;
6287 done:
6288 errcode = pthread_mutex_unlock(&tog_mutex);
6289 if (errcode)
6290 err = got_error_set_errno(errcode, "pthread_mutex_unlock");
6291 return err;
6292 }
6293
6294 static void *
6295 blame_thread(void *arg)
6296 {
6297 const struct got_error *err, *close_err;
6298 struct tog_blame_thread_args *ta = arg;
6299 struct tog_blame_cb_args *a = ta->cb_args;
6300 int errcode, fd1 = -1, fd2 = -1;
6301 FILE *f1 = NULL, *f2 = NULL;
6302
6303 fd1 = got_opentempfd();
6304 if (fd1 == -1)
6305 return (void *)got_error_from_errno("got_opentempfd");
6306
6307 fd2 = got_opentempfd();
6308 if (fd2 == -1) {
6309 err = got_error_from_errno("got_opentempfd");
6310 goto done;
6311 }
6312
6313 f1 = got_opentemp();
6314 if (f1 == NULL) {
6315 err = (void *)got_error_from_errno("got_opentemp");
6316 goto done;
6317 }
6318 f2 = got_opentemp();
6319 if (f2 == NULL) {
6320 err = (void *)got_error_from_errno("got_opentemp");
6321 goto done;
6322 }
6323
6324 err = block_signals_used_by_main_thread();
6325 if (err)
6326 goto done;
6327
6328 err = got_blame(ta->path, a->commit_id, ta->repo,
6329 tog_diff_algo, blame_cb, ta->cb_args,
6330 ta->cancel_cb, ta->cancel_arg, fd1, fd2, f1, f2);
6331 if (err && err->code == GOT_ERR_CANCELLED)
6332 err = NULL;
6333
6334 errcode = pthread_mutex_lock(&tog_mutex);
6335 if (errcode) {
6336 err = got_error_set_errno(errcode, "pthread_mutex_lock");
6337 goto done;
6338 }
6339
6340 close_err = got_repo_close(ta->repo);
6341 if (err == NULL)
6342 err = close_err;
6343 ta->repo = NULL;
6344 *ta->complete = 1;
6345
6346 if (tog_io.wait_for_ui) {
6347 errcode = pthread_cond_signal(&ta->blame_complete);
6348 if (errcode && err == NULL)
6349 err = got_error_set_errno(errcode,
6350 "pthread_cond_signal");
6351 }
6352
6353 errcode = pthread_mutex_unlock(&tog_mutex);
6354 if (errcode && err == NULL)
6355 err = got_error_set_errno(errcode, "pthread_mutex_unlock");
6356
6357 done:
6358 if (fd1 != -1 && close(fd1) == -1 && err == NULL)
6359 err = got_error_from_errno("close");
6360 if (fd2 != -1 && close(fd2) == -1 && err == NULL)
6361 err = got_error_from_errno("close");
6362 if (f1 && fclose(f1) == EOF && err == NULL)
6363 err = got_error_from_errno("fclose");
6364 if (f2 && fclose(f2) == EOF && err == NULL)
6365 err = got_error_from_errno("fclose");
6366
6367 return (void *)err;
6368 }
6369
6370 static struct got_object_id *
6371 get_selected_commit_id(struct tog_blame_line *lines, int nlines,
6372 int first_displayed_line, int selected_line)
6373 {
6374 struct tog_blame_line *line;
6375
6376 if (nlines <= 0)
6377 return NULL;
6378
6379 line = &lines[first_displayed_line - 1 + selected_line - 1];
6380 if (!line->annotated)
6381 return NULL;
6382
6383 return line->id;
6384 }
6385
6386 static struct got_object_id *
6387 get_annotation_for_line(struct tog_blame_line *lines, int nlines,
6388 int lineno)
6389 {
6390 struct tog_blame_line *line;
6391
6392 if (nlines <= 0 || lineno >= nlines)
6393 return NULL;
6394
6395 line = &lines[lineno - 1];
6396 if (!line->annotated)
6397 return NULL;
6398
6399 return line->id;
6400 }
6401
6402 static const struct got_error *
6403 stop_blame(struct tog_blame *blame)
6404 {
6405 const struct got_error *err = NULL;
6406 int i;
6407
6408 if (blame->thread) {
6409 int errcode;
6410 errcode = pthread_mutex_unlock(&tog_mutex);
6411 if (errcode)
6412 return got_error_set_errno(errcode,
6413 "pthread_mutex_unlock");
6414 errcode = pthread_join(blame->thread, (void **)&err);
6415 if (errcode)
6416 return got_error_set_errno(errcode, "pthread_join");
6417 errcode = pthread_mutex_lock(&tog_mutex);
6418 if (errcode)
6419 return got_error_set_errno(errcode,
6420 "pthread_mutex_lock");
6421 if (err && err->code == GOT_ERR_ITER_COMPLETED)
6422 err = NULL;
6423 blame->thread = 0; //NULL;
6424 }
6425 if (blame->thread_args.repo) {
6426 const struct got_error *close_err;
6427 close_err = got_repo_close(blame->thread_args.repo);
6428 if (err == NULL)
6429 err = close_err;
6430 blame->thread_args.repo = NULL;
6431 }
6432 if (blame->f) {
6433 if (fclose(blame->f) == EOF && err == NULL)
6434 err = got_error_from_errno("fclose");
6435 blame->f = NULL;
6436 }
6437 if (blame->lines) {
6438 for (i = 0; i < blame->nlines; i++)
6439 free(blame->lines[i].id);
6440 free(blame->lines);
6441 blame->lines = NULL;
6442 }
6443 free(blame->cb_args.commit_id);
6444 blame->cb_args.commit_id = NULL;
6445 if (blame->pack_fds) {
6446 const struct got_error *pack_err =
6447 got_repo_pack_fds_close(blame->pack_fds);
6448 if (err == NULL)
6449 err = pack_err;
6450 blame->pack_fds = NULL;
6451 }
6452 return err;
6453 }
6454
6455 static const struct got_error *
6456 cancel_blame_view(void *arg)
6457 {
6458 const struct got_error *err = NULL;
6459 int *done = arg;
6460 int errcode;
6461
6462 errcode = pthread_mutex_lock(&tog_mutex);
6463 if (errcode)
6464 return got_error_set_errno(errcode,
6465 "pthread_mutex_unlock");
6466
6467 if (*done)
6468 err = got_error(GOT_ERR_CANCELLED);
6469
6470 errcode = pthread_mutex_unlock(&tog_mutex);
6471 if (errcode)
6472 return got_error_set_errno(errcode,
6473 "pthread_mutex_lock");
6474
6475 return err;
6476 }
6477
6478 static const struct got_error *
6479 run_blame(struct tog_view *view)
6480 {
6481 struct tog_blame_view_state *s = &view->state.blame;
6482 struct tog_blame *blame = &s->blame;
6483 const struct got_error *err = NULL;
6484 struct got_commit_object *commit = NULL;
6485 struct got_blob_object *blob = NULL;
6486 struct got_repository *thread_repo = NULL;
6487 struct got_object_id *obj_id = NULL;
6488 int obj_type, fd = -1;
6489 int *pack_fds = NULL;
6490
6491 err = got_object_open_as_commit(&commit, s->repo,
6492 &s->blamed_commit->id);
6493 if (err)
6494 return err;
6495
6496 fd = got_opentempfd();
6497 if (fd == -1) {
6498 err = got_error_from_errno("got_opentempfd");
6499 goto done;
6500 }
6501
6502 err = got_object_id_by_path(&obj_id, s->repo, commit, s->path);
6503 if (err)
6504 goto done;
6505
6506 err = got_object_get_type(&obj_type, s->repo, obj_id);
6507 if (err)
6508 goto done;
6509
6510 if (obj_type != GOT_OBJ_TYPE_BLOB) {
6511 err = got_error(GOT_ERR_OBJ_TYPE);
6512 goto done;
6513 }
6514
6515 err = got_object_open_as_blob(&blob, s->repo, obj_id, 8192, fd);
6516 if (err)
6517 goto done;
6518 blame->f = got_opentemp();
6519 if (blame->f == NULL) {
6520 err = got_error_from_errno("got_opentemp");
6521 goto done;
6522 }
6523 err = got_object_blob_dump_to_file(&blame->filesize, &blame->nlines,
6524 &blame->line_offsets, blame->f, blob);
6525 if (err)
6526 goto done;
6527 if (blame->nlines == 0) {
6528 s->blame_complete = 1;
6529 goto done;
6530 }
6531
6532 /* Don't include \n at EOF in the blame line count. */
6533 if (blame->line_offsets[blame->nlines - 1] == blame->filesize)
6534 blame->nlines--;
6535
6536 blame->lines = calloc(blame->nlines, sizeof(*blame->lines));
6537 if (blame->lines == NULL) {
6538 err = got_error_from_errno("calloc");
6539 goto done;
6540 }
6541
6542 err = got_repo_pack_fds_open(&pack_fds);
6543 if (err)
6544 goto done;
6545 err = got_repo_open(&thread_repo, got_repo_get_path(s->repo), NULL,
6546 pack_fds);
6547 if (err)
6548 goto done;
6549
6550 blame->pack_fds = pack_fds;
6551 blame->cb_args.view = view;
6552 blame->cb_args.lines = blame->lines;
6553 blame->cb_args.nlines = blame->nlines;
6554 blame->cb_args.commit_id = got_object_id_dup(&s->blamed_commit->id);
6555 if (blame->cb_args.commit_id == NULL) {
6556 err = got_error_from_errno("got_object_id_dup");
6557 goto done;
6558 }
6559 blame->cb_args.quit = &s->done;
6560
6561 blame->thread_args.path = s->path;
6562 blame->thread_args.repo = thread_repo;
6563 blame->thread_args.cb_args = &blame->cb_args;
6564 blame->thread_args.complete = &s->blame_complete;
6565 blame->thread_args.cancel_cb = cancel_blame_view;
6566 blame->thread_args.cancel_arg = &s->done;
6567 s->blame_complete = 0;
6568
6569 if (s->first_displayed_line + view->nlines - 1 > blame->nlines) {
6570 s->first_displayed_line = 1;
6571 s->last_displayed_line = view->nlines;
6572 s->selected_line = 1;
6573 }
6574 s->matched_line = 0;
6575
6576 done:
6577 if (commit)
6578 got_object_commit_close(commit);
6579 if (fd != -1 && close(fd) == -1 && err == NULL)
6580 err = got_error_from_errno("close");
6581 if (blob)
6582 got_object_blob_close(blob);
6583 free(obj_id);
6584 if (err)
6585 stop_blame(blame);
6586 return err;
6587 }
6588
6589 static const struct got_error *
6590 open_blame_view(struct tog_view *view, char *path,
6591 struct got_object_id *commit_id, struct got_repository *repo)
6592 {
6593 const struct got_error *err = NULL;
6594 struct tog_blame_view_state *s = &view->state.blame;
6595
6596 STAILQ_INIT(&s->blamed_commits);
6597
6598 s->path = strdup(path);
6599 if (s->path == NULL)
6600 return got_error_from_errno("strdup");
6601
6602 err = got_object_qid_alloc(&s->blamed_commit, commit_id);
6603 if (err) {
6604 free(s->path);
6605 return err;
6606 }
6607
6608 STAILQ_INSERT_HEAD(&s->blamed_commits, s->blamed_commit, entry);
6609 s->first_displayed_line = 1;
6610 s->last_displayed_line = view->nlines;
6611 s->selected_line = 1;
6612 s->blame_complete = 0;
6613 s->repo = repo;
6614 s->commit_id = commit_id;
6615 memset(&s->blame, 0, sizeof(s->blame));
6616
6617 STAILQ_INIT(&s->colors);
6618 if (has_colors() && getenv("TOG_COLORS") != NULL) {
6619 err = add_color(&s->colors, "^", TOG_COLOR_COMMIT,
6620 get_color_value("TOG_COLOR_COMMIT"));
6621 if (err)
6622 return err;
6623 }
6624
6625 view->show = show_blame_view;
6626 view->input = input_blame_view;
6627 view->reset = reset_blame_view;
6628 view->close = close_blame_view;
6629 view->search_start = search_start_blame_view;
6630 view->search_setup = search_setup_blame_view;
6631 view->search_next = search_next_view_match;
6632
6633 if (using_mock_io) {
6634 struct tog_blame_thread_args *bta = &s->blame.thread_args;
6635 int rc;
6636
6637 rc = pthread_cond_init(&bta->blame_complete, NULL);
6638 if (rc)
6639 return got_error_set_errno(rc, "pthread_cond_init");
6640 }
6641
6642 return run_blame(view);
6643 }
6644
6645 static const struct got_error *
6646 close_blame_view(struct tog_view *view)
6647 {
6648 const struct got_error *err = NULL;
6649 struct tog_blame_view_state *s = &view->state.blame;
6650
6651 if (s->blame.thread)
6652 err = stop_blame(&s->blame);
6653
6654 while (!STAILQ_EMPTY(&s->blamed_commits)) {
6655 struct got_object_qid *blamed_commit;
6656 blamed_commit = STAILQ_FIRST(&s->blamed_commits);
6657 STAILQ_REMOVE_HEAD(&s->blamed_commits, entry);
6658 got_object_qid_free(blamed_commit);
6659 }
6660
6661 if (using_mock_io) {
6662 struct tog_blame_thread_args *bta = &s->blame.thread_args;
6663 int rc;
6664
6665 rc = pthread_cond_destroy(&bta->blame_complete);
6666 if (rc && err == NULL)
6667 err = got_error_set_errno(rc, "pthread_cond_destroy");
6668 }
6669
6670 free(s->path);
6671 free_colors(&s->colors);
6672 return err;
6673 }
6674
6675 static const struct got_error *
6676 search_start_blame_view(struct tog_view *view)
6677 {
6678 struct tog_blame_view_state *s = &view->state.blame;
6679
6680 s->matched_line = 0;
6681 return NULL;
6682 }
6683
6684 static void
6685 search_setup_blame_view(struct tog_view *view, FILE **f, off_t **line_offsets,
6686 size_t *nlines, int **first, int **last, int **match, int **selected)
6687 {
6688 struct tog_blame_view_state *s = &view->state.blame;
6689
6690 *f = s->blame.f;
6691 *nlines = s->blame.nlines;
6692 *line_offsets = s->blame.line_offsets;
6693 *match = &s->matched_line;
6694 *first = &s->first_displayed_line;
6695 *last = &s->last_displayed_line;
6696 *selected = &s->selected_line;
6697 }
6698
6699 static const struct got_error *
6700 show_blame_view(struct tog_view *view)
6701 {
6702 const struct got_error *err = NULL;
6703 struct tog_blame_view_state *s = &view->state.blame;
6704 int errcode;
6705
6706 if (s->blame.thread == 0 && !s->blame_complete) {
6707 errcode = pthread_create(&s->blame.thread, NULL, blame_thread,
6708 &s->blame.thread_args);
6709 if (errcode)
6710 return got_error_set_errno(errcode, "pthread_create");
6711
6712 if (!using_mock_io)
6713 halfdelay(1); /* fast refresh while annotating */
6714 }
6715
6716 if (s->blame_complete && !using_mock_io)
6717 halfdelay(10); /* disable fast refresh */
6718
6719 err = draw_blame(view);
6720
6721 view_border(view);
6722 return err;
6723 }
6724
6725 static const struct got_error *
6726 log_annotated_line(struct tog_view **new_view, int begin_y, int begin_x,
6727 struct got_repository *repo, struct got_object_id *id)
6728 {
6729 struct tog_view *log_view;
6730 const struct got_error *err = NULL;
6731
6732 *new_view = NULL;
6733
6734 log_view = view_open(0, 0, begin_y, begin_x, TOG_VIEW_LOG);
6735 if (log_view == NULL)
6736 return got_error_from_errno("view_open");
6737
6738 err = open_log_view(log_view, id, repo, GOT_REF_HEAD, "", 0);
6739 if (err)
6740 view_close(log_view);
6741 else
6742 *new_view = log_view;
6743
6744 return err;
6745 }
6746
6747 static const struct got_error *
6748 input_blame_view(struct tog_view **new_view, struct tog_view *view, int ch)
6749 {
6750 const struct got_error *err = NULL, *thread_err = NULL;
6751 struct tog_view *diff_view;
6752 struct tog_blame_view_state *s = &view->state.blame;
6753 int eos, nscroll, begin_y = 0, begin_x = 0;
6754
6755 eos = nscroll = view->nlines - 2;
6756 if (view_is_hsplit_top(view))
6757 --eos; /* border */
6758
6759 switch (ch) {
6760 case '0':
6761 case '$':
6762 case KEY_RIGHT:
6763 case 'l':
6764 case KEY_LEFT:
6765 case 'h':
6766 horizontal_scroll_input(view, ch);
6767 break;
6768 case 'q':
6769 s->done = 1;
6770 break;
6771 case 'g':
6772 case KEY_HOME:
6773 s->selected_line = 1;
6774 s->first_displayed_line = 1;
6775 view->count = 0;
6776 break;
6777 case 'G':
6778 case KEY_END:
6779 if (s->blame.nlines < eos) {
6780 s->selected_line = s->blame.nlines;
6781 s->first_displayed_line = 1;
6782 } else {
6783 s->selected_line = eos;
6784 s->first_displayed_line = s->blame.nlines - (eos - 1);
6785 }
6786 view->count = 0;
6787 break;
6788 case 'k':
6789 case KEY_UP:
6790 case CTRL('p'):
6791 if (s->selected_line > 1)
6792 s->selected_line--;
6793 else if (s->selected_line == 1 &&
6794 s->first_displayed_line > 1)
6795 s->first_displayed_line--;
6796 else
6797 view->count = 0;
6798 break;
6799 case CTRL('u'):
6800 case 'u':
6801 nscroll /= 2;
6802 /* FALL THROUGH */
6803 case KEY_PPAGE:
6804 case CTRL('b'):
6805 case 'b':
6806 if (s->first_displayed_line == 1) {
6807 if (view->count > 1)
6808 nscroll += nscroll;
6809 s->selected_line = MAX(1, s->selected_line - nscroll);
6810 view->count = 0;
6811 break;
6812 }
6813 if (s->first_displayed_line > nscroll)
6814 s->first_displayed_line -= nscroll;
6815 else
6816 s->first_displayed_line = 1;
6817 break;
6818 case 'j':
6819 case KEY_DOWN:
6820 case CTRL('n'):
6821 if (s->selected_line < eos && s->first_displayed_line +
6822 s->selected_line <= s->blame.nlines)
6823 s->selected_line++;
6824 else if (s->first_displayed_line < s->blame.nlines - (eos - 1))
6825 s->first_displayed_line++;
6826 else
6827 view->count = 0;
6828 break;
6829 case 'c':
6830 case 'p': {
6831 struct got_object_id *id = NULL;
6832
6833 view->count = 0;
6834 id = get_selected_commit_id(s->blame.lines, s->blame.nlines,
6835 s->first_displayed_line, s->selected_line);
6836 if (id == NULL)
6837 break;
6838 if (ch == 'p') {
6839 struct got_commit_object *commit, *pcommit;
6840 struct got_object_qid *pid;
6841 struct got_object_id *blob_id = NULL;
6842 int obj_type;
6843 err = got_object_open_as_commit(&commit,
6844 s->repo, id);
6845 if (err)
6846 break;
6847 pid = STAILQ_FIRST(
6848 got_object_commit_get_parent_ids(commit));
6849 if (pid == NULL) {
6850 got_object_commit_close(commit);
6851 break;
6852 }
6853 /* Check if path history ends here. */
6854 err = got_object_open_as_commit(&pcommit,
6855 s->repo, &pid->id);
6856 if (err)
6857 break;
6858 err = got_object_id_by_path(&blob_id, s->repo,
6859 pcommit, s->path);
6860 got_object_commit_close(pcommit);
6861 if (err) {
6862 if (err->code == GOT_ERR_NO_TREE_ENTRY)
6863 err = NULL;
6864 got_object_commit_close(commit);
6865 break;
6866 }
6867 err = got_object_get_type(&obj_type, s->repo,
6868 blob_id);
6869 free(blob_id);
6870 /* Can't blame non-blob type objects. */
6871 if (obj_type != GOT_OBJ_TYPE_BLOB) {
6872 got_object_commit_close(commit);
6873 break;
6874 }
6875 err = got_object_qid_alloc(&s->blamed_commit,
6876 &pid->id);
6877 got_object_commit_close(commit);
6878 } else {
6879 if (got_object_id_cmp(id,
6880 &s->blamed_commit->id) == 0)
6881 break;
6882 err = got_object_qid_alloc(&s->blamed_commit,
6883 id);
6884 }
6885 if (err)
6886 break;
6887 s->done = 1;
6888 thread_err = stop_blame(&s->blame);
6889 s->done = 0;
6890 if (thread_err)
6891 break;
6892 STAILQ_INSERT_HEAD(&s->blamed_commits,
6893 s->blamed_commit, entry);
6894 err = run_blame(view);
6895 if (err)
6896 break;
6897 break;
6898 }
6899 case 'C': {
6900 struct got_object_qid *first;
6901
6902 view->count = 0;
6903 first = STAILQ_FIRST(&s->blamed_commits);
6904 if (!got_object_id_cmp(&first->id, s->commit_id))
6905 break;
6906 s->done = 1;
6907 thread_err = stop_blame(&s->blame);
6908 s->done = 0;
6909 if (thread_err)
6910 break;
6911 STAILQ_REMOVE_HEAD(&s->blamed_commits, entry);
6912 got_object_qid_free(s->blamed_commit);
6913 s->blamed_commit =
6914 STAILQ_FIRST(&s->blamed_commits);
6915 err = run_blame(view);
6916 if (err)
6917 break;
6918 break;
6919 }
6920 case 'L':
6921 view->count = 0;
6922 s->id_to_log = get_selected_commit_id(s->blame.lines,
6923 s->blame.nlines, s->first_displayed_line, s->selected_line);
6924 if (s->id_to_log)
6925 err = view_request_new(new_view, view, TOG_VIEW_LOG);
6926 break;
6927 case KEY_ENTER:
6928 case '\r': {
6929 struct got_object_id *id = NULL;
6930 struct got_object_qid *pid;
6931 struct got_commit_object *commit = NULL;
6932
6933 view->count = 0;
6934 id = get_selected_commit_id(s->blame.lines, s->blame.nlines,
6935 s->first_displayed_line, s->selected_line);
6936 if (id == NULL)
6937 break;
6938 err = got_object_open_as_commit(&commit, s->repo, id);
6939 if (err)
6940 break;
6941 pid = STAILQ_FIRST(got_object_commit_get_parent_ids(commit));
6942 if (*new_view) {
6943 /* traversed from diff view, release diff resources */
6944 err = close_diff_view(*new_view);
6945 if (err)
6946 break;
6947 diff_view = *new_view;
6948 } else {
6949 if (view_is_parent_view(view))
6950 view_get_split(view, &begin_y, &begin_x);
6951
6952 diff_view = view_open(0, 0, begin_y, begin_x,
6953 TOG_VIEW_DIFF);
6954 if (diff_view == NULL) {
6955 got_object_commit_close(commit);
6956 err = got_error_from_errno("view_open");
6957 break;
6958 }
6959 }
6960 err = open_diff_view(diff_view, pid ? &pid->id : NULL,
6961 id, NULL, NULL, 3, 0, 0, view, s->repo);
6962 got_object_commit_close(commit);
6963 if (err) {
6964 view_close(diff_view);
6965 break;
6966 }
6967 s->last_diffed_line = s->first_displayed_line - 1 +
6968 s->selected_line;
6969 if (*new_view)
6970 break; /* still open from active diff view */
6971 if (view_is_parent_view(view) &&
6972 view->mode == TOG_VIEW_SPLIT_HRZN) {
6973 err = view_init_hsplit(view, begin_y);
6974 if (err)
6975 break;
6976 }
6977
6978 view->focussed = 0;
6979 diff_view->focussed = 1;
6980 diff_view->mode = view->mode;
6981 diff_view->nlines = view->lines - begin_y;
6982 if (view_is_parent_view(view)) {
6983 view_transfer_size(diff_view, view);
6984 err = view_close_child(view);
6985 if (err)
6986 break;
6987 err = view_set_child(view, diff_view);
6988 if (err)
6989 break;
6990 view->focus_child = 1;
6991 } else
6992 *new_view = diff_view;
6993 if (err)
6994 break;
6995 break;
6996 }
6997 case CTRL('d'):
6998 case 'd':
6999 nscroll /= 2;
7000 /* FALL THROUGH */
7001 case KEY_NPAGE:
7002 case CTRL('f'):
7003 case 'f':
7004 case ' ':
7005 if (s->last_displayed_line >= s->blame.nlines &&
7006 s->selected_line >= MIN(s->blame.nlines,
7007 view->nlines - 2)) {
7008 view->count = 0;
7009 break;
7010 }
7011 if (s->last_displayed_line >= s->blame.nlines &&
7012 s->selected_line < view->nlines - 2) {
7013 s->selected_line +=
7014 MIN(nscroll, s->last_displayed_line -
7015 s->first_displayed_line - s->selected_line + 1);
7016 }
7017 if (s->last_displayed_line + nscroll <= s->blame.nlines)
7018 s->first_displayed_line += nscroll;
7019 else
7020 s->first_displayed_line =
7021 s->blame.nlines - (view->nlines - 3);
7022 break;
7023 case KEY_RESIZE:
7024 if (s->selected_line > view->nlines - 2) {
7025 s->selected_line = MIN(s->blame.nlines,
7026 view->nlines - 2);
7027 }
7028 break;
7029 default:
7030 view->count = 0;
7031 break;
7032 }
7033 return thread_err ? thread_err : err;
7034 }
7035
7036 static const struct got_error *
7037 reset_blame_view(struct tog_view *view)
7038 {
7039 const struct got_error *err;
7040 struct tog_blame_view_state *s = &view->state.blame;
7041
7042 view->count = 0;
7043 s->done = 1;
7044 err = stop_blame(&s->blame);
7045 s->done = 0;
7046 if (err)
7047 return err;
7048 return run_blame(view);
7049 }
7050
7051 static const struct got_error *
7052 cmd_blame(int argc, char *argv[])
7053 {
7054 const struct got_error *error;
7055 struct got_repository *repo = NULL;
7056 struct got_worktree *worktree = NULL;
7057 char *cwd = NULL, *repo_path = NULL, *in_repo_path = NULL;
7058 char *link_target = NULL;
7059 struct got_object_id *commit_id = NULL;
7060 struct got_commit_object *commit = NULL;
7061 char *commit_id_str = NULL;
7062 int ch;
7063 struct tog_view *view = NULL;
7064 int *pack_fds = NULL;
7065
7066 while ((ch = getopt(argc, argv, "c:r:")) != -1) {
7067 switch (ch) {
7068 case 'c':
7069 commit_id_str = optarg;
7070 break;
7071 case 'r':
7072 repo_path = realpath(optarg, NULL);
7073 if (repo_path == NULL)
7074 return got_error_from_errno2("realpath",
7075 optarg);
7076 break;
7077 default:
7078 usage_blame();
7079 /* NOTREACHED */
7080 }
7081 }
7082
7083 argc -= optind;
7084 argv += optind;
7085
7086 if (argc != 1)
7087 usage_blame();
7088
7089 error = got_repo_pack_fds_open(&pack_fds);
7090 if (error != NULL)
7091 goto done;
7092
7093 if (repo_path == NULL) {
7094 cwd = getcwd(NULL, 0);
7095 if (cwd == NULL)
7096 return got_error_from_errno("getcwd");
7097 error = got_worktree_open(&worktree, cwd);
7098 if (error && error->code != GOT_ERR_NOT_WORKTREE)
7099 goto done;
7100 if (worktree)
7101 repo_path =
7102 strdup(got_worktree_get_repo_path(worktree));
7103 else
7104 repo_path = strdup(cwd);
7105 if (repo_path == NULL) {
7106 error = got_error_from_errno("strdup");
7107 goto done;
7108 }
7109 }
7110
7111 error = got_repo_open(&repo, repo_path, NULL, pack_fds);
7112 if (error != NULL)
7113 goto done;
7114
7115 error = get_in_repo_path_from_argv0(&in_repo_path, argc, argv, repo,
7116 worktree);
7117 if (error)
7118 goto done;
7119
7120 init_curses();
7121
7122 error = apply_unveil(got_repo_get_path(repo), NULL);
7123 if (error)
7124 goto done;
7125
7126 error = tog_load_refs(repo, 0);
7127 if (error)
7128 goto done;
7129
7130 if (commit_id_str == NULL) {
7131 struct got_reference *head_ref;
7132 error = got_ref_open(&head_ref, repo, worktree ?
7133 got_worktree_get_head_ref_name(worktree) : GOT_REF_HEAD, 0);
7134 if (error != NULL)
7135 goto done;
7136 error = got_ref_resolve(&commit_id, repo, head_ref);
7137 got_ref_close(head_ref);
7138 } else {
7139 error = got_repo_match_object_id(&commit_id, NULL,
7140 commit_id_str, GOT_OBJ_TYPE_COMMIT, &tog_refs, repo);
7141 }
7142 if (error != NULL)
7143 goto done;
7144
7145 error = got_object_open_as_commit(&commit, repo, commit_id);
7146 if (error)
7147 goto done;
7148
7149 error = got_object_resolve_symlinks(&link_target, in_repo_path,
7150 commit, repo);
7151 if (error)
7152 goto done;
7153
7154 view = view_open(0, 0, 0, 0, TOG_VIEW_BLAME);
7155 if (view == NULL) {
7156 error = got_error_from_errno("view_open");
7157 goto done;
7158 }
7159 error = open_blame_view(view, link_target ? link_target : in_repo_path,
7160 commit_id, repo);
7161 if (error != NULL) {
7162 if (view->close == NULL)
7163 close_blame_view(view);
7164 view_close(view);
7165 goto done;
7166 }
7167 if (worktree) {
7168 /* Release work tree lock. */
7169 got_worktree_close(worktree);
7170 worktree = NULL;
7171 }
7172 error = view_loop(view);
7173 done:
7174 free(repo_path);
7175 free(in_repo_path);
7176 free(link_target);
7177 free(cwd);
7178 free(commit_id);
7179 if (commit)
7180 got_object_commit_close(commit);
7181 if (worktree)
7182 got_worktree_close(worktree);
7183 if (repo) {
7184 const struct got_error *close_err = got_repo_close(repo);
7185 if (error == NULL)
7186 error = close_err;
7187 }
7188 if (pack_fds) {
7189 const struct got_error *pack_err =
7190 got_repo_pack_fds_close(pack_fds);
7191 if (error == NULL)
7192 error = pack_err;
7193 }
7194 tog_free_refs();
7195 return error;
7196 }
7197
7198 static const struct got_error *
7199 draw_tree_entries(struct tog_view *view, const char *parent_path)
7200 {
7201 struct tog_tree_view_state *s = &view->state.tree;
7202 const struct got_error *err = NULL;
7203 struct got_tree_entry *te;
7204 wchar_t *wline;
7205 char *index = NULL;
7206 struct tog_color *tc;
7207 int width, n, nentries, scrollx, i = 1;
7208 int limit = view->nlines;
7209
7210 s->ndisplayed = 0;
7211 if (view_is_hsplit_top(view))
7212 --limit; /* border */
7213
7214 werase(view->window);
7215
7216 if (limit == 0)
7217 return NULL;
7218
7219 err = format_line(&wline, &width, NULL, s->tree_label, 0, view->ncols,
7220 0, 0);
7221 if (err)
7222 return err;
7223 if (view_needs_focus_indication(view))
7224 wstandout(view->window);
7225 tc = get_color(&s->colors, TOG_COLOR_COMMIT);
7226 if (tc)
7227 wattr_on(view->window, COLOR_PAIR(tc->colorpair), NULL);
7228 waddwstr(view->window, wline);
7229 free(wline);
7230 wline = NULL;
7231 while (width++ < view->ncols)
7232 waddch(view->window, ' ');
7233 if (tc)
7234 wattr_off(view->window, COLOR_PAIR(tc->colorpair), NULL);
7235 if (view_needs_focus_indication(view))
7236 wstandend(view->window);
7237 if (--limit <= 0)
7238 return NULL;
7239
7240 i += s->selected;
7241 if (s->first_displayed_entry) {
7242 i += got_tree_entry_get_index(s->first_displayed_entry);
7243 if (s->tree != s->root)
7244 ++i; /* account for ".." entry */
7245 }
7246 nentries = got_object_tree_get_nentries(s->tree);
7247 if (asprintf(&index, "[%d/%d] %s",
7248 i, nentries + (s->tree == s->root ? 0 : 1), parent_path) == -1)
7249 return got_error_from_errno("asprintf");
7250 err = format_line(&wline, &width, NULL, index, 0, view->ncols, 0, 0);
7251 free(index);
7252 if (err)
7253 return err;
7254 waddwstr(view->window, wline);
7255 free(wline);
7256 wline = NULL;
7257 if (width < view->ncols - 1)
7258 waddch(view->window, '\n');
7259 if (--limit <= 0)
7260 return NULL;
7261 waddch(view->window, '\n');
7262 if (--limit <= 0)
7263 return NULL;
7264
7265 if (s->first_displayed_entry == NULL) {
7266 te = got_object_tree_get_first_entry(s->tree);
7267 if (s->selected == 0) {
7268 if (view->focussed)
7269 wstandout(view->window);
7270 s->selected_entry = NULL;
7271 }
7272 waddstr(view->window, " ..\n"); /* parent directory */
7273 if (s->selected == 0 && view->focussed)
7274 wstandend(view->window);
7275 s->ndisplayed++;
7276 if (--limit <= 0)
7277 return NULL;
7278 n = 1;
7279 } else {
7280 n = 0;
7281 te = s->first_displayed_entry;
7282 }
7283
7284 view->maxx = 0;
7285 for (i = got_tree_entry_get_index(te); i < nentries; i++) {
7286 char *line = NULL, *id_str = NULL, *link_target = NULL;
7287 const char *modestr = "";
7288 mode_t mode;
7289
7290 te = got_object_tree_get_entry(s->tree, i);
7291 mode = got_tree_entry_get_mode(te);
7292
7293 if (s->show_ids) {
7294 err = got_object_id_str(&id_str,
7295 got_tree_entry_get_id(te));
7296 if (err)
7297 return got_error_from_errno(
7298 "got_object_id_str");
7299 }
7300 if (got_object_tree_entry_is_submodule(te))
7301 modestr = "$";
7302 else if (S_ISLNK(mode)) {
7303 int i;
7304
7305 err = got_tree_entry_get_symlink_target(&link_target,
7306 te, s->repo);
7307 if (err) {
7308 free(id_str);
7309 return err;
7310 }
7311 for (i = 0; link_target[i] != '\0'; i++) {
7312 if (!isprint((unsigned char)link_target[i]))
7313 link_target[i] = '?';
7314 }
7315 modestr = "@";
7316 }
7317 else if (S_ISDIR(mode))
7318 modestr = "/";
7319 else if (mode & S_IXUSR)
7320 modestr = "*";
7321 if (asprintf(&line, "%s %s%s%s%s", id_str ? id_str : "",
7322 got_tree_entry_get_name(te), modestr,
7323 link_target ? " -> ": "",
7324 link_target ? link_target : "") == -1) {
7325 free(id_str);
7326 free(link_target);
7327 return got_error_from_errno("asprintf");
7328 }
7329 free(id_str);
7330 free(link_target);
7331
7332 /* use full line width to determine view->maxx */
7333 err = format_line(&wline, &width, NULL, line, 0, INT_MAX, 0, 0);
7334 if (err) {
7335 free(line);
7336 break;
7337 }
7338 view->maxx = MAX(view->maxx, width);
7339 free(wline);
7340 wline = NULL;
7341
7342 err = format_line(&wline, &width, &scrollx, line, view->x,
7343 view->ncols, 0, 0);
7344 if (err) {
7345 free(line);
7346 break;
7347 }
7348 if (n == s->selected) {
7349 if (view->focussed)
7350 wstandout(view->window);
7351 s->selected_entry = te;
7352 }
7353 tc = match_color(&s->colors, line);
7354 if (tc)
7355 wattr_on(view->window,
7356 COLOR_PAIR(tc->colorpair), NULL);
7357 waddwstr(view->window, &wline[scrollx]);
7358 if (tc)
7359 wattr_off(view->window,
7360 COLOR_PAIR(tc->colorpair), NULL);
7361 if (width < view->ncols)
7362 waddch(view->window, '\n');
7363 if (n == s->selected && view->focussed)
7364 wstandend(view->window);
7365 free(line);
7366 free(wline);
7367 wline = NULL;
7368 n++;
7369 s->ndisplayed++;
7370 s->last_displayed_entry = te;
7371 if (--limit <= 0)
7372 break;
7373 }
7374
7375 return err;
7376 }
7377
7378 static void
7379 tree_scroll_up(struct tog_tree_view_state *s, int maxscroll)
7380 {
7381 struct got_tree_entry *te;
7382 int isroot = s->tree == s->root;
7383 int i = 0;
7384
7385 if (s->first_displayed_entry == NULL)
7386 return;
7387
7388 te = got_tree_entry_get_prev(s->tree, s->first_displayed_entry);
7389 while (i++ < maxscroll) {
7390 if (te == NULL) {
7391 if (!isroot)
7392 s->first_displayed_entry = NULL;
7393 break;
7394 }
7395 s->first_displayed_entry = te;
7396 te = got_tree_entry_get_prev(s->tree, te);
7397 }
7398 }
7399
7400 static const struct got_error *
7401 tree_scroll_down(struct tog_view *view, int maxscroll)
7402 {
7403 struct tog_tree_view_state *s = &view->state.tree;
7404 struct got_tree_entry *next, *last;
7405 int n = 0;
7406
7407 if (s->first_displayed_entry)
7408 next = got_tree_entry_get_next(s->tree,
7409 s->first_displayed_entry);
7410 else
7411 next = got_object_tree_get_first_entry(s->tree);
7412
7413 last = s->last_displayed_entry;
7414 while (next && n++ < maxscroll) {
7415 if (last) {
7416 s->last_displayed_entry = last;
7417 last = got_tree_entry_get_next(s->tree, last);
7418 }
7419 if (last || (view->mode == TOG_VIEW_SPLIT_HRZN && next)) {
7420 s->first_displayed_entry = next;
7421 next = got_tree_entry_get_next(s->tree, next);
7422 }
7423 }
7424
7425 return NULL;
7426 }
7427
7428 static const struct got_error *
7429 tree_entry_path(char **path, struct tog_parent_trees *parents,
7430 struct got_tree_entry *te)
7431 {
7432 const struct got_error *err = NULL;
7433 struct tog_parent_tree *pt;
7434 size_t len = 2; /* for leading slash and NUL */
7435
7436 TAILQ_FOREACH(pt, parents, entry)
7437 len += strlen(got_tree_entry_get_name(pt->selected_entry))
7438 + 1 /* slash */;
7439 if (te)
7440 len += strlen(got_tree_entry_get_name(te));
7441
7442 *path = calloc(1, len);
7443 if (path == NULL)
7444 return got_error_from_errno("calloc");
7445
7446 (*path)[0] = '/';
7447 pt = TAILQ_LAST(parents, tog_parent_trees);
7448 while (pt) {
7449 const char *name = got_tree_entry_get_name(pt->selected_entry);
7450 if (strlcat(*path, name, len) >= len) {
7451 err = got_error(GOT_ERR_NO_SPACE);
7452 goto done;
7453 }
7454 if (strlcat(*path, "/", len) >= len) {
7455 err = got_error(GOT_ERR_NO_SPACE);
7456 goto done;
7457 }
7458 pt = TAILQ_PREV(pt, tog_parent_trees, entry);
7459 }
7460 if (te) {
7461 if (strlcat(*path, got_tree_entry_get_name(te), len) >= len) {
7462 err = got_error(GOT_ERR_NO_SPACE);
7463 goto done;
7464 }
7465 }
7466 done:
7467 if (err) {
7468 free(*path);
7469 *path = NULL;
7470 }
7471 return err;
7472 }
7473
7474 static const struct got_error *
7475 blame_tree_entry(struct tog_view **new_view, int begin_y, int begin_x,
7476 struct got_tree_entry *te, struct tog_parent_trees *parents,
7477 struct got_object_id *commit_id, struct got_repository *repo)
7478 {
7479 const struct got_error *err = NULL;
7480 char *path;
7481 struct tog_view *blame_view;
7482
7483 *new_view = NULL;
7484
7485 err = tree_entry_path(&path, parents, te);
7486 if (err)
7487 return err;
7488
7489 blame_view = view_open(0, 0, begin_y, begin_x, TOG_VIEW_BLAME);
7490 if (blame_view == NULL) {
7491 err = got_error_from_errno("view_open");
7492 goto done;
7493 }
7494
7495 err = open_blame_view(blame_view, path, commit_id, repo);
7496 if (err) {
7497 if (err->code == GOT_ERR_CANCELLED)
7498 err = NULL;
7499 view_close(blame_view);
7500 } else
7501 *new_view = blame_view;
7502 done:
7503 free(path);
7504 return err;
7505 }
7506
7507 static const struct got_error *
7508 log_selected_tree_entry(struct tog_view **new_view, int begin_y, int begin_x,
7509 struct tog_tree_view_state *s)
7510 {
7511 struct tog_view *log_view;
7512 const struct got_error *err = NULL;
7513 char *path;
7514
7515 *new_view = NULL;
7516
7517 log_view = view_open(0, 0, begin_y, begin_x, TOG_VIEW_LOG);
7518 if (log_view == NULL)
7519 return got_error_from_errno("view_open");
7520
7521 err = tree_entry_path(&path, &s->parents, s->selected_entry);
7522 if (err)
7523 return err;
7524
7525 err = open_log_view(log_view, s->commit_id, s->repo, s->head_ref_name,
7526 path, 0);
7527 if (err)
7528 view_close(log_view);
7529 else
7530 *new_view = log_view;
7531 free(path);
7532 return err;
7533 }
7534
7535 static const struct got_error *
7536 open_tree_view(struct tog_view *view, struct got_object_id *commit_id,
7537 const char *head_ref_name, struct got_repository *repo)
7538 {
7539 const struct got_error *err = NULL;
7540 char *commit_id_str = NULL;
7541 struct tog_tree_view_state *s = &view->state.tree;
7542 struct got_commit_object *commit = NULL;
7543
7544 TAILQ_INIT(&s->parents);
7545 STAILQ_INIT(&s->colors);
7546
7547 s->commit_id = got_object_id_dup(commit_id);
7548 if (s->commit_id == NULL) {
7549 err = got_error_from_errno("got_object_id_dup");
7550 goto done;
7551 }
7552
7553 err = got_object_open_as_commit(&commit, repo, commit_id);
7554 if (err)
7555 goto done;
7556
7557 /*
7558 * The root is opened here and will be closed when the view is closed.
7559 * Any visited subtrees and their path-wise parents are opened and
7560 * closed on demand.
7561 */
7562 err = got_object_open_as_tree(&s->root, repo,
7563 got_object_commit_get_tree_id(commit));
7564 if (err)
7565 goto done;
7566 s->tree = s->root;
7567
7568 err = got_object_id_str(&commit_id_str, commit_id);
7569 if (err != NULL)
7570 goto done;
7571
7572 if (asprintf(&s->tree_label, "commit %s", commit_id_str) == -1) {
7573 err = got_error_from_errno("asprintf");
7574 goto done;
7575 }
7576
7577 s->first_displayed_entry = got_object_tree_get_entry(s->tree, 0);
7578 s->selected_entry = got_object_tree_get_entry(s->tree, 0);
7579 if (head_ref_name) {
7580 s->head_ref_name = strdup(head_ref_name);
7581 if (s->head_ref_name == NULL) {
7582 err = got_error_from_errno("strdup");
7583 goto done;
7584 }
7585 }
7586 s->repo = repo;
7587
7588 if (has_colors() && getenv("TOG_COLORS") != NULL) {
7589 err = add_color(&s->colors, "\\$$",
7590 TOG_COLOR_TREE_SUBMODULE,
7591 get_color_value("TOG_COLOR_TREE_SUBMODULE"));
7592 if (err)
7593 goto done;
7594 err = add_color(&s->colors, "@$", TOG_COLOR_TREE_SYMLINK,
7595 get_color_value("TOG_COLOR_TREE_SYMLINK"));
7596 if (err)
7597 goto done;
7598 err = add_color(&s->colors, "/$",
7599 TOG_COLOR_TREE_DIRECTORY,
7600 get_color_value("TOG_COLOR_TREE_DIRECTORY"));
7601 if (err)
7602 goto done;
7603
7604 err = add_color(&s->colors, "\\*$",
7605 TOG_COLOR_TREE_EXECUTABLE,
7606 get_color_value("TOG_COLOR_TREE_EXECUTABLE"));
7607 if (err)
7608 goto done;
7609
7610 err = add_color(&s->colors, "^$", TOG_COLOR_COMMIT,
7611 get_color_value("TOG_COLOR_COMMIT"));
7612 if (err)
7613 goto done;
7614 }
7615
7616 view->show = show_tree_view;
7617 view->input = input_tree_view;
7618 view->close = close_tree_view;
7619 view->search_start = search_start_tree_view;
7620 view->search_next = search_next_tree_view;
7621 done:
7622 free(commit_id_str);
7623 if (commit)
7624 got_object_commit_close(commit);
7625 if (err) {
7626 if (view->close == NULL)
7627 close_tree_view(view);
7628 view_close(view);
7629 }
7630 return err;
7631 }
7632
7633 static const struct got_error *
7634 close_tree_view(struct tog_view *view)
7635 {
7636 struct tog_tree_view_state *s = &view->state.tree;
7637
7638 free_colors(&s->colors);
7639 free(s->tree_label);
7640 s->tree_label = NULL;
7641 free(s->commit_id);
7642 s->commit_id = NULL;
7643 free(s->head_ref_name);
7644 s->head_ref_name = NULL;
7645 while (!TAILQ_EMPTY(&s->parents)) {
7646 struct tog_parent_tree *parent;
7647 parent = TAILQ_FIRST(&s->parents);
7648 TAILQ_REMOVE(&s->parents, parent, entry);
7649 if (parent->tree != s->root)
7650 got_object_tree_close(parent->tree);
7651 free(parent);
7652
7653 }
7654 if (s->tree != NULL && s->tree != s->root)
7655 got_object_tree_close(s->tree);
7656 if (s->root)
7657 got_object_tree_close(s->root);
7658 return NULL;
7659 }
7660
7661 static const struct got_error *
7662 search_start_tree_view(struct tog_view *view)
7663 {
7664 struct tog_tree_view_state *s = &view->state.tree;
7665
7666 s->matched_entry = NULL;
7667 return NULL;
7668 }
7669
7670 static int
7671 match_tree_entry(struct got_tree_entry *te, regex_t *regex)
7672 {
7673 regmatch_t regmatch;
7674
7675 return regexec(regex, got_tree_entry_get_name(te), 1, &regmatch,
7676 0) == 0;
7677 }
7678
7679 static const struct got_error *
7680 search_next_tree_view(struct tog_view *view)
7681 {
7682 struct tog_tree_view_state *s = &view->state.tree;
7683 struct got_tree_entry *te = NULL;
7684
7685 if (!view->searching) {
7686 view->search_next_done = TOG_SEARCH_HAVE_MORE;
7687 return NULL;
7688 }
7689
7690 if (s->matched_entry) {
7691 if (view->searching == TOG_SEARCH_FORWARD) {
7692 if (s->selected_entry)
7693 te = got_tree_entry_get_next(s->tree,
7694 s->selected_entry);
7695 else
7696 te = got_object_tree_get_first_entry(s->tree);
7697 } else {
7698 if (s->selected_entry == NULL)
7699 te = got_object_tree_get_last_entry(s->tree);
7700 else
7701 te = got_tree_entry_get_prev(s->tree,
7702 s->selected_entry);
7703 }
7704 } else {
7705 if (s->selected_entry)
7706 te = s->selected_entry;
7707 else if (view->searching == TOG_SEARCH_FORWARD)
7708 te = got_object_tree_get_first_entry(s->tree);
7709 else
7710 te = got_object_tree_get_last_entry(s->tree);
7711 }
7712
7713 while (1) {
7714 if (te == NULL) {
7715 if (s->matched_entry == NULL) {
7716 view->search_next_done = TOG_SEARCH_HAVE_MORE;
7717 return NULL;
7718 }
7719 if (view->searching == TOG_SEARCH_FORWARD)
7720 te = got_object_tree_get_first_entry(s->tree);
7721 else
7722 te = got_object_tree_get_last_entry(s->tree);
7723 }
7724
7725 if (match_tree_entry(te, &view->regex)) {
7726 view->search_next_done = TOG_SEARCH_HAVE_MORE;
7727 s->matched_entry = te;
7728 break;
7729 }
7730
7731 if (view->searching == TOG_SEARCH_FORWARD)
7732 te = got_tree_entry_get_next(s->tree, te);
7733 else
7734 te = got_tree_entry_get_prev(s->tree, te);
7735 }
7736
7737 if (s->matched_entry) {
7738 s->first_displayed_entry = s->matched_entry;
7739 s->selected = 0;
7740 }
7741
7742 return NULL;
7743 }
7744
7745 static const struct got_error *
7746 show_tree_view(struct tog_view *view)
7747 {
7748 const struct got_error *err = NULL;
7749 struct tog_tree_view_state *s = &view->state.tree;
7750 char *parent_path;
7751
7752 err = tree_entry_path(&parent_path, &s->parents, NULL);
7753 if (err)
7754 return err;
7755
7756 err = draw_tree_entries(view, parent_path);
7757 free(parent_path);
7758
7759 view_border(view);
7760 return err;
7761 }
7762
7763 static const struct got_error *
7764 tree_goto_line(struct tog_view *view, int nlines)
7765 {
7766 const struct got_error *err = NULL;
7767 struct tog_tree_view_state *s = &view->state.tree;
7768 struct got_tree_entry **fte, **lte, **ste;
7769 int g, last, first = 1, i = 1;
7770 int root = s->tree == s->root;
7771 int off = root ? 1 : 2;
7772
7773 g = view->gline;
7774 view->gline = 0;
7775
7776 if (g == 0)
7777 g = 1;
7778 else if (g > got_object_tree_get_nentries(s->tree))
7779 g = got_object_tree_get_nentries(s->tree) + (root ? 0 : 1);
7780
7781 fte = &s->first_displayed_entry;
7782 lte = &s->last_displayed_entry;
7783 ste = &s->selected_entry;
7784
7785 if (*fte != NULL) {
7786 first = got_tree_entry_get_index(*fte);
7787 first += off; /* account for ".." */
7788 }
7789 last = got_tree_entry_get_index(*lte);
7790 last += off;
7791
7792 if (g >= first && g <= last && g - first < nlines) {
7793 s->selected = g - first;
7794 return NULL; /* gline is on the current page */
7795 }
7796
7797 if (*ste != NULL) {
7798 i = got_tree_entry_get_index(*ste);
7799 i += off;
7800 }
7801
7802 if (i < g) {
7803 err = tree_scroll_down(view, g - i);
7804 if (err)
7805 return err;
7806 if (got_tree_entry_get_index(*lte) >=
7807 got_object_tree_get_nentries(s->tree) - 1 &&
7808 first + s->selected < g &&
7809 s->selected < s->ndisplayed - 1) {
7810 first = got_tree_entry_get_index(*fte);
7811 first += off;
7812 s->selected = g - first;
7813 }
7814 } else if (i > g)
7815 tree_scroll_up(s, i - g);
7816
7817 if (g < nlines &&
7818 (*fte == NULL || (root && !got_tree_entry_get_index(*fte))))
7819 s->selected = g - 1;
7820
7821 return NULL;
7822 }
7823
7824 static const struct got_error *
7825 input_tree_view(struct tog_view **new_view, struct tog_view *view, int ch)
7826 {
7827 const struct got_error *err = NULL;
7828 struct tog_tree_view_state *s = &view->state.tree;
7829 struct got_tree_entry *te;
7830 int n, nscroll = view->nlines - 3;
7831
7832 if (view->gline)
7833 return tree_goto_line(view, nscroll);
7834
7835 switch (ch) {
7836 case '0':
7837 case '$':
7838 case KEY_RIGHT:
7839 case 'l':
7840 case KEY_LEFT:
7841 case 'h':
7842 horizontal_scroll_input(view, ch);
7843 break;
7844 case 'i':
7845 s->show_ids = !s->show_ids;
7846 view->count = 0;
7847 break;
7848 case 'L':
7849 view->count = 0;
7850 if (!s->selected_entry)
7851 break;
7852 err = view_request_new(new_view, view, TOG_VIEW_LOG);
7853 break;
7854 case 'R':
7855 view->count = 0;
7856 err = view_request_new(new_view, view, TOG_VIEW_REF);
7857 break;
7858 case 'g':
7859 case '=':
7860 case KEY_HOME:
7861 s->selected = 0;
7862 view->count = 0;
7863 if (s->tree == s->root)
7864 s->first_displayed_entry =
7865 got_object_tree_get_first_entry(s->tree);
7866 else
7867 s->first_displayed_entry = NULL;
7868 break;
7869 case 'G':
7870 case '*':
7871 case KEY_END: {
7872 int eos = view->nlines - 3;
7873
7874 if (view->mode == TOG_VIEW_SPLIT_HRZN)
7875 --eos; /* border */
7876 s->selected = 0;
7877 view->count = 0;
7878 te = got_object_tree_get_last_entry(s->tree);
7879 for (n = 0; n < eos; n++) {
7880 if (te == NULL) {
7881 if (s->tree != s->root) {
7882 s->first_displayed_entry = NULL;
7883 n++;
7884 }
7885 break;
7886 }
7887 s->first_displayed_entry = te;
7888 te = got_tree_entry_get_prev(s->tree, te);
7889 }
7890 if (n > 0)
7891 s->selected = n - 1;
7892 break;
7893 }
7894 case 'k':
7895 case KEY_UP:
7896 case CTRL('p'):
7897 if (s->selected > 0) {
7898 s->selected--;
7899 break;
7900 }
7901 tree_scroll_up(s, 1);
7902 if (s->selected_entry == NULL ||
7903 (s->tree == s->root && s->selected_entry ==
7904 got_object_tree_get_first_entry(s->tree)))
7905 view->count = 0;
7906 break;
7907 case CTRL('u'):
7908 case 'u':
7909 nscroll /= 2;
7910 /* FALL THROUGH */
7911 case KEY_PPAGE:
7912 case CTRL('b'):
7913 case 'b':
7914 if (s->tree == s->root) {
7915 if (got_object_tree_get_first_entry(s->tree) ==
7916 s->first_displayed_entry)
7917 s->selected -= MIN(s->selected, nscroll);
7918 } else {
7919 if (s->first_displayed_entry == NULL)
7920 s->selected -= MIN(s->selected, nscroll);
7921 }
7922 tree_scroll_up(s, MAX(0, nscroll));
7923 if (s->selected_entry == NULL ||
7924 (s->tree == s->root && s->selected_entry ==
7925 got_object_tree_get_first_entry(s->tree)))
7926 view->count = 0;
7927 break;
7928 case 'j':
7929 case KEY_DOWN:
7930 case CTRL('n'):
7931 if (s->selected < s->ndisplayed - 1) {
7932 s->selected++;
7933 break;
7934 }
7935 if (got_tree_entry_get_next(s->tree, s->last_displayed_entry)
7936 == NULL) {
7937 /* can't scroll any further */
7938 view->count = 0;
7939 break;
7940 }
7941 tree_scroll_down(view, 1);
7942 break;
7943 case CTRL('d'):
7944 case 'd':
7945 nscroll /= 2;
7946 /* FALL THROUGH */
7947 case KEY_NPAGE:
7948 case CTRL('f'):
7949 case 'f':
7950 case ' ':
7951 if (got_tree_entry_get_next(s->tree, s->last_displayed_entry)
7952 == NULL) {
7953 /* can't scroll any further; move cursor down */
7954 if (s->selected < s->ndisplayed - 1)
7955 s->selected += MIN(nscroll,
7956 s->ndisplayed - s->selected - 1);
7957 else
7958 view->count = 0;
7959 break;
7960 }
7961 tree_scroll_down(view, nscroll);
7962 break;
7963 case KEY_ENTER:
7964 case '\r':
7965 case KEY_BACKSPACE:
7966 if (s->selected_entry == NULL || ch == KEY_BACKSPACE) {
7967 struct tog_parent_tree *parent;
7968 /* user selected '..' */
7969 if (s->tree == s->root) {
7970 view->count = 0;
7971 break;
7972 }
7973 parent = TAILQ_FIRST(&s->parents);
7974 TAILQ_REMOVE(&s->parents, parent,
7975 entry);
7976 got_object_tree_close(s->tree);
7977 s->tree = parent->tree;
7978 s->first_displayed_entry =
7979 parent->first_displayed_entry;
7980 s->selected_entry =
7981 parent->selected_entry;
7982 s->selected = parent->selected;
7983 if (s->selected > view->nlines - 3) {
7984 err = offset_selection_down(view);
7985 if (err)
7986 break;
7987 }
7988 free(parent);
7989 } else if (S_ISDIR(got_tree_entry_get_mode(
7990 s->selected_entry))) {
7991 struct got_tree_object *subtree;
7992 view->count = 0;
7993 err = got_object_open_as_tree(&subtree, s->repo,
7994 got_tree_entry_get_id(s->selected_entry));
7995 if (err)
7996 break;
7997 err = tree_view_visit_subtree(s, subtree);
7998 if (err) {
7999 got_object_tree_close(subtree);
8000 break;
8001 }
8002 } else if (S_ISREG(got_tree_entry_get_mode(s->selected_entry)))
8003 err = view_request_new(new_view, view, TOG_VIEW_BLAME);
8004 break;
8005 case KEY_RESIZE:
8006 if (view->nlines >= 4 && s->selected >= view->nlines - 3)
8007 s->selected = view->nlines - 4;
8008 view->count = 0;
8009 break;
8010 default:
8011 view->count = 0;
8012 break;
8013 }
8014
8015 return err;
8016 }
8017
8018 __dead static void
8019 usage_tree(void)
8020 {
8021 endwin();
8022 fprintf(stderr,
8023 "usage: %s tree [-c commit] [-r repository-path] [path]\n",
8024 getprogname());
8025 exit(1);
8026 }
8027
8028 static const struct got_error *
8029 cmd_tree(int argc, char *argv[])
8030 {
8031 const struct got_error *error;
8032 struct got_repository *repo = NULL;
8033 struct got_worktree *worktree = NULL;
8034 char *cwd = NULL, *repo_path = NULL, *in_repo_path = NULL;
8035 struct got_object_id *commit_id = NULL;
8036 struct got_commit_object *commit = NULL;
8037 const char *commit_id_arg = NULL;
8038 char *label = NULL;
8039 struct got_reference *ref = NULL;
8040 const char *head_ref_name = NULL;
8041 int ch;
8042 struct tog_view *view;
8043 int *pack_fds = NULL;
8044
8045 while ((ch = getopt(argc, argv, "c:r:")) != -1) {
8046 switch (ch) {
8047 case 'c':
8048 commit_id_arg = optarg;
8049 break;
8050 case 'r':
8051 repo_path = realpath(optarg, NULL);
8052 if (repo_path == NULL)
8053 return got_error_from_errno2("realpath",
8054 optarg);
8055 break;
8056 default:
8057 usage_tree();
8058 /* NOTREACHED */
8059 }
8060 }
8061
8062 argc -= optind;
8063 argv += optind;
8064
8065 if (argc > 1)
8066 usage_tree();
8067
8068 error = got_repo_pack_fds_open(&pack_fds);
8069 if (error != NULL)
8070 goto done;
8071
8072 if (repo_path == NULL) {
8073 cwd = getcwd(NULL, 0);
8074 if (cwd == NULL)
8075 return got_error_from_errno("getcwd");
8076 error = got_worktree_open(&worktree, cwd);
8077 if (error && error->code != GOT_ERR_NOT_WORKTREE)
8078 goto done;
8079 if (worktree)
8080 repo_path =
8081 strdup(got_worktree_get_repo_path(worktree));
8082 else
8083 repo_path = strdup(cwd);
8084 if (repo_path == NULL) {
8085 error = got_error_from_errno("strdup");
8086 goto done;
8087 }
8088 }
8089
8090 error = got_repo_open(&repo, repo_path, NULL, pack_fds);
8091 if (error != NULL)
8092 goto done;
8093
8094 error = get_in_repo_path_from_argv0(&in_repo_path, argc, argv,
8095 repo, worktree);
8096 if (error)
8097 goto done;
8098
8099 init_curses();
8100
8101 error = apply_unveil(got_repo_get_path(repo), NULL);
8102 if (error)
8103 goto done;
8104
8105 error = tog_load_refs(repo, 0);
8106 if (error)
8107 goto done;
8108
8109 if (commit_id_arg == NULL) {
8110 error = got_repo_match_object_id(&commit_id, &label,
8111 worktree ? got_worktree_get_head_ref_name(worktree) :
8112 GOT_REF_HEAD, GOT_OBJ_TYPE_COMMIT, &tog_refs, repo);
8113 if (error)
8114 goto done;
8115 head_ref_name = label;
8116 } else {
8117 error = got_ref_open(&ref, repo, commit_id_arg, 0);
8118 if (error == NULL)
8119 head_ref_name = got_ref_get_name(ref);
8120 else if (error->code != GOT_ERR_NOT_REF)
8121 goto done;
8122 error = got_repo_match_object_id(&commit_id, NULL,
8123 commit_id_arg, GOT_OBJ_TYPE_COMMIT, &tog_refs, repo);
8124 if (error)
8125 goto done;
8126 }
8127
8128 error = got_object_open_as_commit(&commit, repo, commit_id);
8129 if (error)
8130 goto done;
8131
8132 view = view_open(0, 0, 0, 0, TOG_VIEW_TREE);
8133 if (view == NULL) {
8134 error = got_error_from_errno("view_open");
8135 goto done;
8136 }
8137 error = open_tree_view(view, commit_id, head_ref_name, repo);
8138 if (error)
8139 goto done;
8140 if (!got_path_is_root_dir(in_repo_path)) {
8141 error = tree_view_walk_path(&view->state.tree, commit,
8142 in_repo_path);
8143 if (error)
8144 goto done;
8145 }
8146
8147 if (worktree) {
8148 /* Release work tree lock. */
8149 got_worktree_close(worktree);
8150 worktree = NULL;
8151 }
8152 error = view_loop(view);
8153 done:
8154 free(repo_path);
8155 free(cwd);
8156 free(commit_id);
8157 free(label);
8158 if (ref)
8159 got_ref_close(ref);
8160 if (repo) {
8161 const struct got_error *close_err = got_repo_close(repo);
8162 if (error == NULL)
8163 error = close_err;
8164 }
8165 if (pack_fds) {
8166 const struct got_error *pack_err =
8167 got_repo_pack_fds_close(pack_fds);
8168 if (error == NULL)
8169 error = pack_err;
8170 }
8171 tog_free_refs();
8172 return error;
8173 }
8174
8175 static const struct got_error *
8176 ref_view_load_refs(struct tog_ref_view_state *s)
8177 {
8178 struct got_reflist_entry *sre;
8179 struct tog_reflist_entry *re;
8180
8181 s->nrefs = 0;
8182 TAILQ_FOREACH(sre, &tog_refs, entry) {
8183 if (strncmp(got_ref_get_name(sre->ref),
8184 "refs/got/", 9) == 0 &&
8185 strncmp(got_ref_get_name(sre->ref),
8186 "refs/got/backup/", 16) != 0)
8187 continue;
8188
8189 re = malloc(sizeof(*re));
8190 if (re == NULL)
8191 return got_error_from_errno("malloc");
8192
8193 re->ref = got_ref_dup(sre->ref);
8194 if (re->ref == NULL)
8195 return got_error_from_errno("got_ref_dup");
8196 re->idx = s->nrefs++;
8197 TAILQ_INSERT_TAIL(&s->refs, re, entry);
8198 }
8199
8200 s->first_displayed_entry = TAILQ_FIRST(&s->refs);
8201 return NULL;
8202 }
8203
8204 static void
8205 ref_view_free_refs(struct tog_ref_view_state *s)
8206 {
8207 struct tog_reflist_entry *re;
8208
8209 while (!TAILQ_EMPTY(&s->refs)) {
8210 re = TAILQ_FIRST(&s->refs);
8211 TAILQ_REMOVE(&s->refs, re, entry);
8212 got_ref_close(re->ref);
8213 free(re);
8214 }
8215 }
8216
8217 static const struct got_error *
8218 open_ref_view(struct tog_view *view, struct got_repository *repo)
8219 {
8220 const struct got_error *err = NULL;
8221 struct tog_ref_view_state *s = &view->state.ref;
8222
8223 s->selected_entry = 0;
8224 s->repo = repo;
8225
8226 TAILQ_INIT(&s->refs);
8227 STAILQ_INIT(&s->colors);
8228
8229 err = ref_view_load_refs(s);
8230 if (err)
8231 goto done;
8232
8233 if (has_colors() && getenv("TOG_COLORS") != NULL) {
8234 err = add_color(&s->colors, "^refs/heads/",
8235 TOG_COLOR_REFS_HEADS,
8236 get_color_value("TOG_COLOR_REFS_HEADS"));
8237 if (err)
8238 goto done;
8239
8240 err = add_color(&s->colors, "^refs/tags/",
8241 TOG_COLOR_REFS_TAGS,
8242 get_color_value("TOG_COLOR_REFS_TAGS"));
8243 if (err)
8244 goto done;
8245
8246 err = add_color(&s->colors, "^refs/remotes/",
8247 TOG_COLOR_REFS_REMOTES,
8248 get_color_value("TOG_COLOR_REFS_REMOTES"));
8249 if (err)
8250 goto done;
8251
8252 err = add_color(&s->colors, "^refs/got/backup/",
8253 TOG_COLOR_REFS_BACKUP,
8254 get_color_value("TOG_COLOR_REFS_BACKUP"));
8255 if (err)
8256 goto done;
8257 }
8258
8259 view->show = show_ref_view;
8260 view->input = input_ref_view;
8261 view->close = close_ref_view;
8262 view->search_start = search_start_ref_view;
8263 view->search_next = search_next_ref_view;
8264 done:
8265 if (err) {
8266 if (view->close == NULL)
8267 close_ref_view(view);
8268 view_close(view);
8269 }
8270 return err;
8271 }
8272
8273 static const struct got_error *
8274 close_ref_view(struct tog_view *view)
8275 {
8276 struct tog_ref_view_state *s = &view->state.ref;
8277
8278 ref_view_free_refs(s);
8279 free_colors(&s->colors);
8280
8281 return NULL;
8282 }
8283
8284 static const struct got_error *
8285 resolve_reflist_entry(struct got_object_id **commit_id,
8286 struct tog_reflist_entry *re, struct got_repository *repo)
8287 {
8288 const struct got_error *err = NULL;
8289 struct got_object_id *obj_id;
8290 struct got_tag_object *tag = NULL;
8291 int obj_type;
8292
8293 *commit_id = NULL;
8294
8295 err = got_ref_resolve(&obj_id, repo, re->ref);
8296 if (err)
8297 return err;
8298
8299 err = got_object_get_type(&obj_type, repo, obj_id);
8300 if (err)
8301 goto done;
8302
8303 switch (obj_type) {
8304 case GOT_OBJ_TYPE_COMMIT:
8305 *commit_id = obj_id;
8306 break;
8307 case GOT_OBJ_TYPE_TAG:
8308 err = got_object_open_as_tag(&tag, repo, obj_id);
8309 if (err)
8310 goto done;
8311 free(obj_id);
8312 err = got_object_get_type(&obj_type, repo,
8313 got_object_tag_get_object_id(tag));
8314 if (err)
8315 goto done;
8316 if (obj_type != GOT_OBJ_TYPE_COMMIT) {
8317 err = got_error(GOT_ERR_OBJ_TYPE);
8318 goto done;
8319 }
8320 *commit_id = got_object_id_dup(
8321 got_object_tag_get_object_id(tag));
8322 if (*commit_id == NULL) {
8323 err = got_error_from_errno("got_object_id_dup");
8324 goto done;
8325 }
8326 break;
8327 default:
8328 err = got_error(GOT_ERR_OBJ_TYPE);
8329 break;
8330 }
8331
8332 done:
8333 if (tag)
8334 got_object_tag_close(tag);
8335 if (err) {
8336 free(*commit_id);
8337 *commit_id = NULL;
8338 }
8339 return err;
8340 }
8341
8342 static const struct got_error *
8343 log_ref_entry(struct tog_view **new_view, int begin_y, int begin_x,
8344 struct tog_reflist_entry *re, struct got_repository *repo)
8345 {
8346 struct tog_view *log_view;
8347 const struct got_error *err = NULL;
8348 struct got_object_id *commit_id = NULL;
8349
8350 *new_view = NULL;
8351
8352 err = resolve_reflist_entry(&commit_id, re, repo);
8353 if (err) {
8354 if (err->code != GOT_ERR_OBJ_TYPE)
8355 return err;
8356 else
8357 return NULL;
8358 }
8359
8360 log_view = view_open(0, 0, begin_y, begin_x, TOG_VIEW_LOG);
8361 if (log_view == NULL) {
8362 err = got_error_from_errno("view_open");
8363 goto done;
8364 }
8365
8366 err = open_log_view(log_view, commit_id, repo,
8367 got_ref_get_name(re->ref), "", 0);
8368 done:
8369 if (err)
8370 view_close(log_view);
8371 else
8372 *new_view = log_view;
8373 free(commit_id);
8374 return err;
8375 }
8376
8377 static void
8378 ref_scroll_up(struct tog_ref_view_state *s, int maxscroll)
8379 {
8380 struct tog_reflist_entry *re;
8381 int i = 0;
8382
8383 if (s->first_displayed_entry == TAILQ_FIRST(&s->refs))
8384 return;
8385
8386 re = TAILQ_PREV(s->first_displayed_entry, tog_reflist_head, entry);
8387 while (i++ < maxscroll) {
8388 if (re == NULL)
8389 break;
8390 s->first_displayed_entry = re;
8391 re = TAILQ_PREV(re, tog_reflist_head, entry);
8392 }
8393 }
8394
8395 static const struct got_error *
8396 ref_scroll_down(struct tog_view *view, int maxscroll)
8397 {
8398 struct tog_ref_view_state *s = &view->state.ref;
8399 struct tog_reflist_entry *next, *last;
8400 int n = 0;
8401
8402 if (s->first_displayed_entry)
8403 next = TAILQ_NEXT(s->first_displayed_entry, entry);
8404 else
8405 next = TAILQ_FIRST(&s->refs);
8406
8407 last = s->last_displayed_entry;
8408 while (next && n++ < maxscroll) {
8409 if (last) {
8410 s->last_displayed_entry = last;
8411 last = TAILQ_NEXT(last, entry);
8412 }
8413 if (last || (view->mode == TOG_VIEW_SPLIT_HRZN)) {
8414 s->first_displayed_entry = next;
8415 next = TAILQ_NEXT(next, entry);
8416 }
8417 }
8418
8419 return NULL;
8420 }
8421
8422 static const struct got_error *
8423 search_start_ref_view(struct tog_view *view)
8424 {
8425 struct tog_ref_view_state *s = &view->state.ref;
8426
8427 s->matched_entry = NULL;
8428 return NULL;
8429 }
8430
8431 static int
8432 match_reflist_entry(struct tog_reflist_entry *re, regex_t *regex)
8433 {
8434 regmatch_t regmatch;
8435
8436 return regexec(regex, got_ref_get_name(re->ref), 1, &regmatch,
8437 0) == 0;
8438 }
8439
8440 static const struct got_error *
8441 search_next_ref_view(struct tog_view *view)
8442 {
8443 struct tog_ref_view_state *s = &view->state.ref;
8444 struct tog_reflist_entry *re = NULL;
8445
8446 if (!view->searching) {
8447 view->search_next_done = TOG_SEARCH_HAVE_MORE;
8448 return NULL;
8449 }
8450
8451 if (s->matched_entry) {
8452 if (view->searching == TOG_SEARCH_FORWARD) {
8453 if (s->selected_entry)
8454 re = TAILQ_NEXT(s->selected_entry, entry);
8455 else
8456 re = TAILQ_PREV(s->selected_entry,
8457 tog_reflist_head, entry);
8458 } else {
8459 if (s->selected_entry == NULL)
8460 re = TAILQ_LAST(&s->refs, tog_reflist_head);
8461 else
8462 re = TAILQ_PREV(s->selected_entry,
8463 tog_reflist_head, entry);
8464 }
8465 } else {
8466 if (s->selected_entry)
8467 re = s->selected_entry;
8468 else if (view->searching == TOG_SEARCH_FORWARD)
8469 re = TAILQ_FIRST(&s->refs);
8470 else
8471 re = TAILQ_LAST(&s->refs, tog_reflist_head);
8472 }
8473
8474 while (1) {
8475 if (re == NULL) {
8476 if (s->matched_entry == NULL) {
8477 view->search_next_done = TOG_SEARCH_HAVE_MORE;
8478 return NULL;
8479 }
8480 if (view->searching == TOG_SEARCH_FORWARD)
8481 re = TAILQ_FIRST(&s->refs);
8482 else
8483 re = TAILQ_LAST(&s->refs, tog_reflist_head);
8484 }
8485
8486 if (match_reflist_entry(re, &view->regex)) {
8487 view->search_next_done = TOG_SEARCH_HAVE_MORE;
8488 s->matched_entry = re;
8489 break;
8490 }
8491
8492 if (view->searching == TOG_SEARCH_FORWARD)
8493 re = TAILQ_NEXT(re, entry);
8494 else
8495 re = TAILQ_PREV(re, tog_reflist_head, entry);
8496 }
8497
8498 if (s->matched_entry) {
8499 s->first_displayed_entry = s->matched_entry;
8500 s->selected = 0;
8501 }
8502
8503 return NULL;
8504 }
8505
8506 static const struct got_error *
8507 show_ref_view(struct tog_view *view)
8508 {
8509 const struct got_error *err = NULL;
8510 struct tog_ref_view_state *s = &view->state.ref;
8511 struct tog_reflist_entry *re;
8512 char *line = NULL;
8513 wchar_t *wline;
8514 struct tog_color *tc;
8515 int width, n, scrollx;
8516 int limit = view->nlines;
8517
8518 werase(view->window);
8519
8520 s->ndisplayed = 0;
8521 if (view_is_hsplit_top(view))
8522 --limit; /* border */
8523
8524 if (limit == 0)
8525 return NULL;
8526
8527 re = s->first_displayed_entry;
8528
8529 if (asprintf(&line, "references [%d/%d]", re->idx + s->selected + 1,
8530 s->nrefs) == -1)
8531 return got_error_from_errno("asprintf");
8532
8533 err = format_line(&wline, &width, NULL, line, 0, view->ncols, 0, 0);
8534 if (err) {
8535 free(line);
8536 return err;
8537 }
8538 if (view_needs_focus_indication(view))
8539 wstandout(view->window);
8540 waddwstr(view->window, wline);
8541 while (width++ < view->ncols)
8542 waddch(view->window, ' ');
8543 if (view_needs_focus_indication(view))
8544 wstandend(view->window);
8545 free(wline);
8546 wline = NULL;
8547 free(line);
8548 line = NULL;
8549 if (--limit <= 0)
8550 return NULL;
8551
8552 n = 0;
8553 view->maxx = 0;
8554 while (re && limit > 0) {
8555 char *line = NULL;
8556 char ymd[13]; /* YYYY-MM-DD + " " + NUL */
8557
8558 if (s->show_date) {
8559 struct got_commit_object *ci;
8560 struct got_tag_object *tag;
8561 struct got_object_id *id;
8562 struct tm tm;
8563 time_t t;
8564
8565 err = got_ref_resolve(&id, s->repo, re->ref);
8566 if (err)
8567 return err;
8568 err = got_object_open_as_tag(&tag, s->repo, id);
8569 if (err) {
8570 if (err->code != GOT_ERR_OBJ_TYPE) {
8571 free(id);
8572 return err;
8573 }
8574 err = got_object_open_as_commit(&ci, s->repo,
8575 id);
8576 if (err) {
8577 free(id);
8578 return err;
8579 }
8580 t = got_object_commit_get_committer_time(ci);
8581 got_object_commit_close(ci);
8582 } else {
8583 t = got_object_tag_get_tagger_time(tag);
8584 got_object_tag_close(tag);
8585 }
8586 free(id);
8587 if (gmtime_r(&t, &tm) == NULL)
8588 return got_error_from_errno("gmtime_r");
8589 if (strftime(ymd, sizeof(ymd), "%G-%m-%d ", &tm) == 0)
8590 return got_error(GOT_ERR_NO_SPACE);
8591 }
8592 if (got_ref_is_symbolic(re->ref)) {
8593 if (asprintf(&line, "%s%s -> %s", s->show_date ?
8594 ymd : "", got_ref_get_name(re->ref),
8595 got_ref_get_symref_target(re->ref)) == -1)
8596 return got_error_from_errno("asprintf");
8597 } else if (s->show_ids) {
8598 struct got_object_id *id;
8599 char *id_str;
8600 err = got_ref_resolve(&id, s->repo, re->ref);
8601 if (err)
8602 return err;
8603 err = got_object_id_str(&id_str, id);
8604 if (err) {
8605 free(id);
8606 return err;
8607 }
8608 if (asprintf(&line, "%s%s: %s", s->show_date ? ymd : "",
8609 got_ref_get_name(re->ref), id_str) == -1) {
8610 err = got_error_from_errno("asprintf");
8611 free(id);
8612 free(id_str);
8613 return err;
8614 }
8615 free(id);
8616 free(id_str);
8617 } else if (asprintf(&line, "%s%s", s->show_date ? ymd : "",
8618 got_ref_get_name(re->ref)) == -1)
8619 return got_error_from_errno("asprintf");
8620
8621 /* use full line width to determine view->maxx */
8622 err = format_line(&wline, &width, NULL, line, 0, INT_MAX, 0, 0);
8623 if (err) {
8624 free(line);
8625 return err;
8626 }
8627 view->maxx = MAX(view->maxx, width);
8628 free(wline);
8629 wline = NULL;
8630
8631 err = format_line(&wline, &width, &scrollx, line, view->x,
8632 view->ncols, 0, 0);
8633 if (err) {
8634 free(line);
8635 return err;
8636 }
8637 if (n == s->selected) {
8638 if (view->focussed)
8639 wstandout(view->window);
8640 s->selected_entry = re;
8641 }
8642 tc = match_color(&s->colors, got_ref_get_name(re->ref));
8643 if (tc)
8644 wattr_on(view->window,
8645 COLOR_PAIR(tc->colorpair), NULL);
8646 waddwstr(view->window, &wline[scrollx]);
8647 if (tc)
8648 wattr_off(view->window,
8649 COLOR_PAIR(tc->colorpair), NULL);
8650 if (width < view->ncols)
8651 waddch(view->window, '\n');
8652 if (n == s->selected && view->focussed)
8653 wstandend(view->window);
8654 free(line);
8655 free(wline);
8656 wline = NULL;
8657 n++;
8658 s->ndisplayed++;
8659 s->last_displayed_entry = re;
8660
8661 limit--;
8662 re = TAILQ_NEXT(re, entry);
8663 }
8664
8665 view_border(view);
8666 return err;
8667 }
8668
8669 static const struct got_error *
8670 browse_ref_tree(struct tog_view **new_view, int begin_y, int begin_x,
8671 struct tog_reflist_entry *re, struct got_repository *repo)
8672 {
8673 const struct got_error *err = NULL;
8674 struct got_object_id *commit_id = NULL;
8675 struct tog_view *tree_view;
8676
8677 *new_view = NULL;
8678
8679 err = resolve_reflist_entry(&commit_id, re, repo);
8680 if (err) {
8681 if (err->code != GOT_ERR_OBJ_TYPE)
8682 return err;
8683 else
8684 return NULL;
8685 }
8686
8687
8688 tree_view = view_open(0, 0, begin_y, begin_x, TOG_VIEW_TREE);
8689 if (tree_view == NULL) {
8690 err = got_error_from_errno("view_open");
8691 goto done;
8692 }
8693
8694 err = open_tree_view(tree_view, commit_id,
8695 got_ref_get_name(re->ref), repo);
8696 if (err)
8697 goto done;
8698
8699 *new_view = tree_view;
8700 done:
8701 free(commit_id);
8702 return err;
8703 }
8704
8705 static const struct got_error *
8706 ref_goto_line(struct tog_view *view, int nlines)
8707 {
8708 const struct got_error *err = NULL;
8709 struct tog_ref_view_state *s = &view->state.ref;
8710 int g, idx = s->selected_entry->idx;
8711
8712 g = view->gline;
8713 view->gline = 0;
8714
8715 if (g == 0)
8716 g = 1;
8717 else if (g > s->nrefs)
8718 g = s->nrefs;
8719
8720 if (g >= s->first_displayed_entry->idx + 1 &&
8721 g <= s->last_displayed_entry->idx + 1 &&
8722 g - s->first_displayed_entry->idx - 1 < nlines) {
8723 s->selected = g - s->first_displayed_entry->idx - 1;
8724 return NULL;
8725 }
8726
8727 if (idx + 1 < g) {
8728 err = ref_scroll_down(view, g - idx - 1);
8729 if (err)
8730 return err;
8731 if (TAILQ_NEXT(s->last_displayed_entry, entry) == NULL &&
8732 s->first_displayed_entry->idx + s->selected < g &&
8733 s->selected < s->ndisplayed - 1)
8734 s->selected = g - s->first_displayed_entry->idx - 1;
8735 } else if (idx + 1 > g)
8736 ref_scroll_up(s, idx - g + 1);
8737
8738 if (g < nlines && s->first_displayed_entry->idx == 0)
8739 s->selected = g - 1;
8740
8741 return NULL;
8742
8743 }
8744
8745 static const struct got_error *
8746 input_ref_view(struct tog_view **new_view, struct tog_view *view, int ch)
8747 {
8748 const struct got_error *err = NULL;
8749 struct tog_ref_view_state *s = &view->state.ref;
8750 struct tog_reflist_entry *re;
8751 int n, nscroll = view->nlines - 1;
8752
8753 if (view->gline)
8754 return ref_goto_line(view, nscroll);
8755
8756 switch (ch) {
8757 case '0':
8758 case '$':
8759 case KEY_RIGHT:
8760 case 'l':
8761 case KEY_LEFT:
8762 case 'h':
8763 horizontal_scroll_input(view, ch);
8764 break;
8765 case 'i':
8766 s->show_ids = !s->show_ids;
8767 view->count = 0;
8768 break;
8769 case 'm':
8770 s->show_date = !s->show_date;
8771 view->count = 0;
8772 break;
8773 case 'o':
8774 s->sort_by_date = !s->sort_by_date;
8775 view->action = s->sort_by_date ? "sort by date" : "sort by name";
8776 view->count = 0;
8777 err = got_reflist_sort(&tog_refs, s->sort_by_date ?
8778 got_ref_cmp_by_commit_timestamp_descending :
8779 tog_ref_cmp_by_name, s->repo);
8780 if (err)
8781 break;
8782 got_reflist_object_id_map_free(tog_refs_idmap);
8783 err = got_reflist_object_id_map_create(&tog_refs_idmap,
8784 &tog_refs, s->repo);
8785 if (err)
8786 break;
8787 ref_view_free_refs(s);
8788 err = ref_view_load_refs(s);
8789 break;
8790 case KEY_ENTER:
8791 case '\r':
8792 view->count = 0;
8793 if (!s->selected_entry)
8794 break;
8795 err = view_request_new(new_view, view, TOG_VIEW_LOG);
8796 break;
8797 case 'T':
8798 view->count = 0;
8799 if (!s->selected_entry)
8800 break;
8801 err = view_request_new(new_view, view, TOG_VIEW_TREE);
8802 break;
8803 case 'g':
8804 case '=':
8805 case KEY_HOME:
8806 s->selected = 0;
8807 view->count = 0;
8808 s->first_displayed_entry = TAILQ_FIRST(&s->refs);
8809 break;
8810 case 'G':
8811 case '*':
8812 case KEY_END: {
8813 int eos = view->nlines - 1;
8814
8815 if (view->mode == TOG_VIEW_SPLIT_HRZN)
8816 --eos; /* border */
8817 s->selected = 0;
8818 view->count = 0;
8819 re = TAILQ_LAST(&s->refs, tog_reflist_head);
8820 for (n = 0; n < eos; n++) {
8821 if (re == NULL)
8822 break;
8823 s->first_displayed_entry = re;
8824 re = TAILQ_PREV(re, tog_reflist_head, entry);
8825 }
8826 if (n > 0)
8827 s->selected = n - 1;
8828 break;
8829 }
8830 case 'k':
8831 case KEY_UP:
8832 case CTRL('p'):
8833 if (s->selected > 0) {
8834 s->selected--;
8835 break;
8836 }
8837 ref_scroll_up(s, 1);
8838 if (s->selected_entry == TAILQ_FIRST(&s->refs))
8839 view->count = 0;
8840 break;
8841 case CTRL('u'):
8842 case 'u':
8843 nscroll /= 2;
8844 /* FALL THROUGH */
8845 case KEY_PPAGE:
8846 case CTRL('b'):
8847 case 'b':
8848 if (s->first_displayed_entry == TAILQ_FIRST(&s->refs))
8849 s->selected -= MIN(nscroll, s->selected);
8850 ref_scroll_up(s, MAX(0, nscroll));
8851 if (s->selected_entry == TAILQ_FIRST(&s->refs))
8852 view->count = 0;
8853 break;
8854 case 'j':
8855 case KEY_DOWN:
8856 case CTRL('n'):
8857 if (s->selected < s->ndisplayed - 1) {
8858 s->selected++;
8859 break;
8860 }
8861 if (TAILQ_NEXT(s->last_displayed_entry, entry) == NULL) {
8862 /* can't scroll any further */
8863 view->count = 0;
8864 break;
8865 }
8866 ref_scroll_down(view, 1);
8867 break;
8868 case CTRL('d'):
8869 case 'd':
8870 nscroll /= 2;
8871 /* FALL THROUGH */
8872 case KEY_NPAGE:
8873 case CTRL('f'):
8874 case 'f':
8875 case ' ':
8876 if (TAILQ_NEXT(s->last_displayed_entry, entry) == NULL) {
8877 /* can't scroll any further; move cursor down */
8878 if (s->selected < s->ndisplayed - 1)
8879 s->selected += MIN(nscroll,
8880 s->ndisplayed - s->selected - 1);
8881 if (view->count > 1 && s->selected < s->ndisplayed - 1)
8882 s->selected += s->ndisplayed - s->selected - 1;
8883 view->count = 0;
8884 break;
8885 }
8886 ref_scroll_down(view, nscroll);
8887 break;
8888 case CTRL('l'):
8889 view->count = 0;
8890 tog_free_refs();
8891 err = tog_load_refs(s->repo, s->sort_by_date);
8892 if (err)
8893 break;
8894 ref_view_free_refs(s);
8895 err = ref_view_load_refs(s);
8896 break;
8897 case KEY_RESIZE:
8898 if (view->nlines >= 2 && s->selected >= view->nlines - 1)
8899 s->selected = view->nlines - 2;
8900 break;
8901 default:
8902 view->count = 0;
8903 break;
8904 }
8905
8906 return err;
8907 }
8908
8909 __dead static void
8910 usage_ref(void)
8911 {
8912 endwin();
8913 fprintf(stderr, "usage: %s ref [-r repository-path]\n",
8914 getprogname());
8915 exit(1);
8916 }
8917
8918 static const struct got_error *
8919 cmd_ref(int argc, char *argv[])
8920 {
8921 const struct got_error *error;
8922 struct got_repository *repo = NULL;
8923 struct got_worktree *worktree = NULL;
8924 char *cwd = NULL, *repo_path = NULL;
8925 int ch;
8926 struct tog_view *view;
8927 int *pack_fds = NULL;
8928
8929 while ((ch = getopt(argc, argv, "r:")) != -1) {
8930 switch (ch) {
8931 case 'r':
8932 repo_path = realpath(optarg, NULL);
8933 if (repo_path == NULL)
8934 return got_error_from_errno2("realpath",
8935 optarg);
8936 break;
8937 default:
8938 usage_ref();
8939 /* NOTREACHED */
8940 }
8941 }
8942
8943 argc -= optind;
8944 argv += optind;
8945
8946 if (argc > 1)
8947 usage_ref();
8948
8949 error = got_repo_pack_fds_open(&pack_fds);
8950 if (error != NULL)
8951 goto done;
8952
8953 if (repo_path == NULL) {
8954 cwd = getcwd(NULL, 0);
8955 if (cwd == NULL)
8956 return got_error_from_errno("getcwd");
8957 error = got_worktree_open(&worktree, cwd);
8958 if (error && error->code != GOT_ERR_NOT_WORKTREE)
8959 goto done;
8960 if (worktree)
8961 repo_path =
8962 strdup(got_worktree_get_repo_path(worktree));
8963 else
8964 repo_path = strdup(cwd);
8965 if (repo_path == NULL) {
8966 error = got_error_from_errno("strdup");
8967 goto done;
8968 }
8969 }
8970
8971 error = got_repo_open(&repo, repo_path, NULL, pack_fds);
8972 if (error != NULL)
8973 goto done;
8974
8975 init_curses();
8976
8977 error = apply_unveil(got_repo_get_path(repo), NULL);
8978 if (error)
8979 goto done;
8980
8981 error = tog_load_refs(repo, 0);
8982 if (error)
8983 goto done;
8984
8985 view = view_open(0, 0, 0, 0, TOG_VIEW_REF);
8986 if (view == NULL) {
8987 error = got_error_from_errno("view_open");
8988 goto done;
8989 }
8990
8991 error = open_ref_view(view, repo);
8992 if (error)
8993 goto done;
8994
8995 if (worktree) {
8996 /* Release work tree lock. */
8997 got_worktree_close(worktree);
8998 worktree = NULL;
8999 }
9000 error = view_loop(view);
9001 done:
9002 free(repo_path);
9003 free(cwd);
9004 if (repo) {
9005 const struct got_error *close_err = got_repo_close(repo);
9006 if (close_err)
9007 error = close_err;
9008 }
9009 if (pack_fds) {
9010 const struct got_error *pack_err =
9011 got_repo_pack_fds_close(pack_fds);
9012 if (error == NULL)
9013 error = pack_err;
9014 }
9015 tog_free_refs();
9016 return error;
9017 }
9018
9019 static const struct got_error*
9020 win_draw_center(WINDOW *win, size_t y, size_t x, size_t maxx, int focus,
9021 const char *str)
9022 {
9023 size_t len;
9024
9025 if (win == NULL)
9026 win = stdscr;
9027
9028 len = strlen(str);
9029 x = x ? x : maxx > len ? (maxx - len) / 2 : 0;
9030
9031 if (focus)
9032 wstandout(win);
9033 if (mvwprintw(win, y, x, "%s", str) == ERR)
9034 return got_error_msg(GOT_ERR_RANGE, "mvwprintw");
9035 if (focus)
9036 wstandend(win);
9037
9038 return NULL;
9039 }
9040
9041 static const struct got_error *
9042 add_line_offset(off_t **line_offsets, size_t *nlines, off_t off)
9043 {
9044 off_t *p;
9045
9046 p = reallocarray(*line_offsets, *nlines + 1, sizeof(off_t));
9047 if (p == NULL) {
9048 free(*line_offsets);
9049 *line_offsets = NULL;
9050 return got_error_from_errno("reallocarray");
9051 }
9052
9053 *line_offsets = p;
9054 (*line_offsets)[*nlines] = off;
9055 ++(*nlines);
9056 return NULL;
9057 }
9058
9059 static const struct got_error *
9060 max_key_str(int *ret, const struct tog_key_map *km, size_t n)
9061 {
9062 *ret = 0;
9063
9064 for (;n > 0; --n, ++km) {
9065 char *t0, *t, *k;
9066 size_t len = 1;
9067
9068 if (km->keys == NULL)
9069 continue;
9070
9071 t = t0 = strdup(km->keys);
9072 if (t0 == NULL)
9073 return got_error_from_errno("strdup");
9074
9075 len += strlen(t);
9076 while ((k = strsep(&t, " ")) != NULL)
9077 len += strlen(k) > 1 ? 2 : 0;
9078 free(t0);
9079 *ret = MAX(*ret, len);
9080 }
9081
9082 return NULL;
9083 }
9084
9085 /*
9086 * Write keymap section headers, keys, and key info in km to f.
9087 * Save line offset to *off. If terminal has UTF8 encoding enabled,
9088 * wrap control and symbolic keys in guillemets, else use <>.
9089 */
9090 static const struct got_error *
9091 format_help_line(off_t *off, FILE *f, const struct tog_key_map *km, int width)
9092 {
9093 int n, len = width;
9094
9095 if (km->keys) {
9096 static const char *u8_glyph[] = {
9097 "\xe2\x80\xb9", /* U+2039 (utf8 <) */
9098 "\xe2\x80\xba" /* U+203A (utf8 >) */
9099 };
9100 char *t0, *t, *k;
9101 int cs, s, first = 1;
9102
9103 cs = got_locale_is_utf8();
9104
9105 t = t0 = strdup(km->keys);
9106 if (t0 == NULL)
9107 return got_error_from_errno("strdup");
9108
9109 len = strlen(km->keys);
9110 while ((k = strsep(&t, " ")) != NULL) {
9111 s = strlen(k) > 1; /* control or symbolic key */
9112 n = fprintf(f, "%s%s%s%s%s", first ? " " : "",
9113 cs && s ? u8_glyph[0] : s ? "<" : "", k,
9114 cs && s ? u8_glyph[1] : s ? ">" : "", t ? " " : "");
9115 if (n < 0) {
9116 free(t0);
9117 return got_error_from_errno("fprintf");
9118 }
9119 first = 0;
9120 len += s ? 2 : 0;
9121 *off += n;
9122 }
9123 free(t0);
9124 }
9125 n = fprintf(f, "%*s%s\n", width - len, width - len ? " " : "", km->info);
9126 if (n < 0)
9127 return got_error_from_errno("fprintf");
9128 *off += n;
9129
9130 return NULL;
9131 }
9132
9133 static const struct got_error *
9134 format_help(struct tog_help_view_state *s)
9135 {
9136 const struct got_error *err = NULL;
9137 off_t off = 0;
9138 int i, max, n, show = s->all;
9139 static const struct tog_key_map km[] = {
9140 #define KEYMAP_(info, type) { NULL, (info), type }
9141 #define KEY_(keys, info) { (keys), (info), TOG_KEYMAP_KEYS }
9142 GENERATE_HELP
9143 #undef KEYMAP_
9144 #undef KEY_
9145 };
9146
9147 err = add_line_offset(&s->line_offsets, &s->nlines, 0);
9148 if (err)
9149 return err;
9150
9151 n = nitems(km);
9152 err = max_key_str(&max, km, n);
9153 if (err)
9154 return err;
9155
9156 for (i = 0; i < n; ++i) {
9157 if (km[i].keys == NULL) {
9158 show = s->all;
9159 if (km[i].type == TOG_KEYMAP_GLOBAL ||
9160 km[i].type == s->type || s->all)
9161 show = 1;
9162 }
9163 if (show) {
9164 err = format_help_line(&off, s->f, &km[i], max);
9165 if (err)
9166 return err;
9167 err = add_line_offset(&s->line_offsets, &s->nlines, off);
9168 if (err)
9169 return err;
9170 }
9171 }
9172 fputc('\n', s->f);
9173 ++off;
9174 err = add_line_offset(&s->line_offsets, &s->nlines, off);
9175 return err;
9176 }
9177
9178 static const struct got_error *
9179 create_help(struct tog_help_view_state *s)
9180 {
9181 FILE *f;
9182 const struct got_error *err;
9183
9184 free(s->line_offsets);
9185 s->line_offsets = NULL;
9186 s->nlines = 0;
9187
9188 f = got_opentemp();
9189 if (f == NULL)
9190 return got_error_from_errno("got_opentemp");
9191 s->f = f;
9192
9193 err = format_help(s);
9194 if (err)
9195 return err;
9196
9197 if (s->f && fflush(s->f) != 0)
9198 return got_error_from_errno("fflush");
9199
9200 return NULL;
9201 }
9202
9203 static const struct got_error *
9204 search_start_help_view(struct tog_view *view)
9205 {
9206 view->state.help.matched_line = 0;
9207 return NULL;
9208 }
9209
9210 static void
9211 search_setup_help_view(struct tog_view *view, FILE **f, off_t **line_offsets,
9212 size_t *nlines, int **first, int **last, int **match, int **selected)
9213 {
9214 struct tog_help_view_state *s = &view->state.help;
9215
9216 *f = s->f;
9217 *nlines = s->nlines;
9218 *line_offsets = s->line_offsets;
9219 *match = &s->matched_line;
9220 *first = &s->first_displayed_line;
9221 *last = &s->last_displayed_line;
9222 *selected = &s->selected_line;
9223 }
9224
9225 static const struct got_error *
9226 show_help_view(struct tog_view *view)
9227 {
9228 struct tog_help_view_state *s = &view->state.help;
9229 const struct got_error *err;
9230 regmatch_t *regmatch = &view->regmatch;
9231 wchar_t *wline;
9232 char *line;
9233 ssize_t linelen;
9234 size_t linesz = 0;
9235 int width, nprinted = 0, rc = 0;
9236 int eos = view->nlines;
9237
9238 if (view_is_hsplit_top(view))
9239 --eos; /* account for border */
9240
9241 s->lineno = 0;
9242 rewind(s->f);
9243 werase(view->window);
9244
9245 if (view->gline > s->nlines - 1)
9246 view->gline = s->nlines - 1;
9247
9248 err = win_draw_center(view->window, 0, 0, view->ncols,
9249 view_needs_focus_indication(view),
9250 "tog help (press q to return to tog)");
9251 if (err)
9252 return err;
9253 if (eos <= 1)
9254 return NULL;
9255 waddstr(view->window, "\n\n");
9256 eos -= 2;
9257
9258 s->eof = 0;
9259 view->maxx = 0;
9260 line = NULL;
9261 while (eos > 0 && nprinted < eos) {
9262 attr_t attr = 0;
9263
9264 linelen = getline(&line, &linesz, s->f);
9265 if (linelen == -1) {
9266 if (!feof(s->f)) {
9267 free(line);
9268 return got_ferror(s->f, GOT_ERR_IO);
9269 }
9270 s->eof = 1;
9271 break;
9272 }
9273 if (++s->lineno < s->first_displayed_line)
9274 continue;
9275 if (view->gline && !gotoline(view, &s->lineno, &nprinted))
9276 continue;
9277 if (s->lineno == view->hiline)
9278 attr = A_STANDOUT;
9279
9280 err = format_line(&wline, &width, NULL, line, 0, INT_MAX, 0,
9281 view->x ? 1 : 0);
9282 if (err) {
9283 free(line);
9284 return err;
9285 }
9286 view->maxx = MAX(view->maxx, width);
9287 free(wline);
9288 wline = NULL;
9289
9290 if (attr)
9291 wattron(view->window, attr);
9292 if (s->first_displayed_line + nprinted == s->matched_line &&
9293 regmatch->rm_so >= 0 && regmatch->rm_so < regmatch->rm_eo) {
9294 err = add_matched_line(&width, line, view->ncols - 1, 0,
9295 view->window, view->x, regmatch);
9296 if (err) {
9297 free(line);
9298 return err;
9299 }
9300 } else {
9301 int skip;
9302
9303 err = format_line(&wline, &width, &skip, line,
9304 view->x, view->ncols, 0, view->x ? 1 : 0);
9305 if (err) {
9306 free(line);
9307 return err;
9308 }
9309 waddwstr(view->window, &wline[skip]);
9310 free(wline);
9311 wline = NULL;
9312 }
9313 if (s->lineno == view->hiline) {
9314 while (width++ < view->ncols)
9315 waddch(view->window, ' ');
9316 } else {
9317 if (width < view->ncols)
9318 waddch(view->window, '\n');
9319 }
9320 if (attr)
9321 wattroff(view->window, attr);
9322 if (++nprinted == 1)
9323 s->first_displayed_line = s->lineno;
9324 }
9325 free(line);
9326 if (nprinted > 0)
9327 s->last_displayed_line = s->first_displayed_line + nprinted - 1;
9328 else
9329 s->last_displayed_line = s->first_displayed_line;
9330
9331 view_border(view);
9332
9333 if (s->eof) {
9334 rc = waddnstr(view->window,
9335 "See the tog(1) manual page for full documentation",
9336 view->ncols - 1);
9337 if (rc == ERR)
9338 return got_error_msg(GOT_ERR_RANGE, "waddnstr");
9339 } else {
9340 wmove(view->window, view->nlines - 1, 0);
9341 wclrtoeol(view->window);
9342 wstandout(view->window);
9343 rc = waddnstr(view->window, "scroll down for more...",
9344 view->ncols - 1);
9345 if (rc == ERR)
9346 return got_error_msg(GOT_ERR_RANGE, "waddnstr");
9347 if (getcurx(view->window) < view->ncols - 6) {
9348 rc = wprintw(view->window, "[%.0f%%]",
9349 100.00 * s->last_displayed_line / s->nlines);
9350 if (rc == ERR)
9351 return got_error_msg(GOT_ERR_IO, "wprintw");
9352 }
9353 wstandend(view->window);
9354 }
9355
9356 return NULL;
9357 }
9358
9359 static const struct got_error *
9360 input_help_view(struct tog_view **new_view, struct tog_view *view, int ch)
9361 {
9362 struct tog_help_view_state *s = &view->state.help;
9363 const struct got_error *err = NULL;
9364 char *line = NULL;
9365 ssize_t linelen;
9366 size_t linesz = 0;
9367 int eos, nscroll;
9368
9369 eos = nscroll = view->nlines;
9370 if (view_is_hsplit_top(view))
9371 --eos; /* border */
9372
9373 s->lineno = s->first_displayed_line - 1 + s->selected_line;
9374
9375 switch (ch) {
9376 case '0':
9377 case '$':
9378 case KEY_RIGHT:
9379 case 'l':
9380 case KEY_LEFT:
9381 case 'h':
9382 horizontal_scroll_input(view, ch);
9383 break;
9384 case 'g':
9385 case KEY_HOME:
9386 s->first_displayed_line = 1;
9387 view->count = 0;
9388 break;
9389 case 'G':
9390 case KEY_END:
9391 view->count = 0;
9392 if (s->eof)
9393 break;
9394 s->first_displayed_line = (s->nlines - eos) + 3;
9395 s->eof = 1;
9396 break;
9397 case 'k':
9398 case KEY_UP:
9399 if (s->first_displayed_line > 1)
9400 --s->first_displayed_line;
9401 else
9402 view->count = 0;
9403 break;
9404 case CTRL('u'):
9405 case 'u':
9406 nscroll /= 2;
9407 /* FALL THROUGH */
9408 case KEY_PPAGE:
9409 case CTRL('b'):
9410 case 'b':
9411 if (s->first_displayed_line == 1) {
9412 view->count = 0;
9413 break;
9414 }
9415 while (--nscroll > 0 && s->first_displayed_line > 1)
9416 s->first_displayed_line--;
9417 break;
9418 case 'j':
9419 case KEY_DOWN:
9420 case CTRL('n'):
9421 if (!s->eof)
9422 ++s->first_displayed_line;
9423 else
9424 view->count = 0;
9425 break;
9426 case CTRL('d'):
9427 case 'd':
9428 nscroll /= 2;
9429 /* FALL THROUGH */
9430 case KEY_NPAGE:
9431 case CTRL('f'):
9432 case 'f':
9433 case ' ':
9434 if (s->eof) {
9435 view->count = 0;
9436 break;
9437 }
9438 while (!s->eof && --nscroll > 0) {
9439 linelen = getline(&line, &linesz, s->f);
9440 s->first_displayed_line++;
9441 if (linelen == -1) {
9442 if (feof(s->f))
9443 s->eof = 1;
9444 else
9445 err = got_ferror(s->f, GOT_ERR_IO);
9446 break;
9447 }
9448 }
9449 free(line);
9450 break;
9451 default:
9452 view->count = 0;
9453 break;
9454 }
9455
9456 return err;
9457 }
9458
9459 static const struct got_error *
9460 close_help_view(struct tog_view *view)
9461 {
9462 struct tog_help_view_state *s = &view->state.help;
9463
9464 free(s->line_offsets);
9465 s->line_offsets = NULL;
9466 if (fclose(s->f) == EOF)
9467 return got_error_from_errno("fclose");
9468
9469 return NULL;
9470 }
9471
9472 static const struct got_error *
9473 reset_help_view(struct tog_view *view)
9474 {
9475 struct tog_help_view_state *s = &view->state.help;
9476
9477
9478 if (s->f && fclose(s->f) == EOF)
9479 return got_error_from_errno("fclose");
9480
9481 wclear(view->window);
9482 view->count = 0;
9483 view->x = 0;
9484 s->all = !s->all;
9485 s->first_displayed_line = 1;
9486 s->last_displayed_line = view->nlines;
9487 s->matched_line = 0;
9488
9489 return create_help(s);
9490 }
9491
9492 static const struct got_error *
9493 open_help_view(struct tog_view *view, struct tog_view *parent)
9494 {
9495 const struct got_error *err = NULL;
9496 struct tog_help_view_state *s = &view->state.help;
9497
9498 s->type = (enum tog_keymap_type)parent->type;
9499 s->first_displayed_line = 1;
9500 s->last_displayed_line = view->nlines;
9501 s->selected_line = 1;
9502
9503 view->show = show_help_view;
9504 view->input = input_help_view;
9505 view->reset = reset_help_view;
9506 view->close = close_help_view;
9507 view->search_start = search_start_help_view;
9508 view->search_setup = search_setup_help_view;
9509 view->search_next = search_next_view_match;
9510
9511 err = create_help(s);
9512 return err;
9513 }
9514
9515 static const struct got_error *
9516 view_dispatch_request(struct tog_view **new_view, struct tog_view *view,
9517 enum tog_view_type request, int y, int x)
9518 {
9519 const struct got_error *err = NULL;
9520
9521 *new_view = NULL;
9522
9523 switch (request) {
9524 case TOG_VIEW_DIFF:
9525 if (view->type == TOG_VIEW_LOG) {
9526 struct tog_log_view_state *s = &view->state.log;
9527
9528 err = open_diff_view_for_commit(new_view, y, x,
9529 s->selected_entry->commit, s->selected_entry->id,
9530 view, s->repo);
9531 } else
9532 return got_error_msg(GOT_ERR_NOT_IMPL,
9533 "parent/child view pair not supported");
9534 break;
9535 case TOG_VIEW_BLAME:
9536 if (view->type == TOG_VIEW_TREE) {
9537 struct tog_tree_view_state *s = &view->state.tree;
9538
9539 err = blame_tree_entry(new_view, y, x,
9540 s->selected_entry, &s->parents, s->commit_id,
9541 s->repo);
9542 } else
9543 return got_error_msg(GOT_ERR_NOT_IMPL,
9544 "parent/child view pair not supported");
9545 break;
9546 case TOG_VIEW_LOG:
9547 if (view->type == TOG_VIEW_BLAME)
9548 err = log_annotated_line(new_view, y, x,
9549 view->state.blame.repo, view->state.blame.id_to_log);
9550 else if (view->type == TOG_VIEW_TREE)
9551 err = log_selected_tree_entry(new_view, y, x,
9552 &view->state.tree);
9553 else if (view->type == TOG_VIEW_REF)
9554 err = log_ref_entry(new_view, y, x,
9555 view->state.ref.selected_entry,
9556 view->state.ref.repo);
9557 else
9558 return got_error_msg(GOT_ERR_NOT_IMPL,
9559 "parent/child view pair not supported");
9560 break;
9561 case TOG_VIEW_TREE:
9562 if (view->type == TOG_VIEW_LOG)
9563 err = browse_commit_tree(new_view, y, x,
9564 view->state.log.selected_entry,
9565 view->state.log.in_repo_path,
9566 view->state.log.head_ref_name,
9567 view->state.log.repo);
9568 else if (view->type == TOG_VIEW_REF)
9569 err = browse_ref_tree(new_view, y, x,
9570 view->state.ref.selected_entry,
9571 view->state.ref.repo);
9572 else
9573 return got_error_msg(GOT_ERR_NOT_IMPL,
9574 "parent/child view pair not supported");
9575 break;
9576 case TOG_VIEW_REF:
9577 *new_view = view_open(0, 0, y, x, TOG_VIEW_REF);
9578 if (*new_view == NULL)
9579 return got_error_from_errno("view_open");
9580 if (view->type == TOG_VIEW_LOG)
9581 err = open_ref_view(*new_view, view->state.log.repo);
9582 else if (view->type == TOG_VIEW_TREE)
9583 err = open_ref_view(*new_view, view->state.tree.repo);
9584 else
9585 err = got_error_msg(GOT_ERR_NOT_IMPL,
9586 "parent/child view pair not supported");
9587 if (err)
9588 view_close(*new_view);
9589 break;
9590 case TOG_VIEW_HELP:
9591 *new_view = view_open(0, 0, 0, 0, TOG_VIEW_HELP);
9592 if (*new_view == NULL)
9593 return got_error_from_errno("view_open");
9594 err = open_help_view(*new_view, view);
9595 if (err)
9596 view_close(*new_view);
9597 break;
9598 default:
9599 return got_error_msg(GOT_ERR_NOT_IMPL, "invalid view");
9600 }
9601
9602 return err;
9603 }
9604
9605 /*
9606 * If view was scrolled down to move the selected line into view when opening a
9607 * horizontal split, scroll back up when closing the split/toggling fullscreen.
9608 */
9609 static void
9610 offset_selection_up(struct tog_view *view)
9611 {
9612 switch (view->type) {
9613 case TOG_VIEW_BLAME: {
9614 struct tog_blame_view_state *s = &view->state.blame;
9615 if (s->first_displayed_line == 1) {
9616 s->selected_line = MAX(s->selected_line - view->offset,
9617 1);
9618 break;
9619 }
9620 if (s->first_displayed_line > view->offset)
9621 s->first_displayed_line -= view->offset;
9622 else
9623 s->first_displayed_line = 1;
9624 s->selected_line += view->offset;
9625 break;
9626 }
9627 case TOG_VIEW_LOG:
9628 log_scroll_up(&view->state.log, view->offset);
9629 view->state.log.selected += view->offset;
9630 break;
9631 case TOG_VIEW_REF:
9632 ref_scroll_up(&view->state.ref, view->offset);
9633 view->state.ref.selected += view->offset;
9634 break;
9635 case TOG_VIEW_TREE:
9636 tree_scroll_up(&view->state.tree, view->offset);
9637 view->state.tree.selected += view->offset;
9638 break;
9639 default:
9640 break;
9641 }
9642
9643 view->offset = 0;
9644 }
9645
9646 /*
9647 * If the selected line is in the section of screen covered by the bottom split,
9648 * scroll down offset lines to move it into view and index its new position.
9649 */
9650 static const struct got_error *
9651 offset_selection_down(struct tog_view *view)
9652 {
9653 const struct got_error *err = NULL;
9654 const struct got_error *(*scrolld)(struct tog_view *, int);
9655 int *selected = NULL;
9656 int header, offset;
9657
9658 switch (view->type) {
9659 case TOG_VIEW_BLAME: {
9660 struct tog_blame_view_state *s = &view->state.blame;
9661 header = 3;
9662 scrolld = NULL;
9663 if (s->selected_line > view->nlines - header) {
9664 offset = abs(view->nlines - s->selected_line - header);
9665 s->first_displayed_line += offset;
9666 s->selected_line -= offset;
9667 view->offset = offset;
9668 }
9669 break;
9670 }
9671 case TOG_VIEW_LOG: {
9672 struct tog_log_view_state *s = &view->state.log;
9673 scrolld = &log_scroll_down;
9674 header = view_is_parent_view(view) ? 3 : 2;
9675 selected = &s->selected;
9676 break;
9677 }
9678 case TOG_VIEW_REF: {
9679 struct tog_ref_view_state *s = &view->state.ref;
9680 scrolld = &ref_scroll_down;
9681 header = 3;
9682 selected = &s->selected;
9683 break;
9684 }
9685 case TOG_VIEW_TREE: {
9686 struct tog_tree_view_state *s = &view->state.tree;
9687 scrolld = &tree_scroll_down;
9688 header = 5;
9689 selected = &s->selected;
9690 break;
9691 }
9692 default:
9693 selected = NULL;
9694 scrolld = NULL;
9695 header = 0;
9696 break;
9697 }
9698
9699 if (selected && *selected > view->nlines - header) {
9700 offset = abs(view->nlines - *selected - header);
9701 view->offset = offset;
9702 if (scrolld && offset) {
9703 err = scrolld(view, offset);
9704 *selected -= offset;
9705 }
9706 }
9707
9708 return err;
9709 }
9710
9711 static void
9712 list_commands(FILE *fp)
9713 {
9714 size_t i;
9715
9716 fprintf(fp, "commands:");
9717 for (i = 0; i < nitems(tog_commands); i++) {
9718 const struct tog_cmd *cmd = &tog_commands[i];
9719 fprintf(fp, " %s", cmd->name);
9720 }
9721 fputc('\n', fp);
9722 }
9723
9724 __dead static void
9725 usage(int hflag, int status)
9726 {
9727 FILE *fp = (status == 0) ? stdout : stderr;
9728
9729 fprintf(fp, "usage: %s [-hV] command [arg ...]\n",
9730 getprogname());
9731 if (hflag) {
9732 fprintf(fp, "lazy usage: %s path\n", getprogname());
9733 list_commands(fp);
9734 }
9735 exit(status);
9736 }
9737
9738 static char **
9739 make_argv(int argc, ...)
9740 {
9741 va_list ap;
9742 char **argv;
9743 int i;
9744
9745 va_start(ap, argc);
9746
9747 argv = calloc(argc, sizeof(char *));
9748 if (argv == NULL)
9749 err(1, "calloc");
9750 for (i = 0; i < argc; i++) {
9751 argv[i] = strdup(va_arg(ap, char *));
9752 if (argv[i] == NULL)
9753 err(1, "strdup");
9754 }
9755
9756 va_end(ap);
9757 return argv;
9758 }
9759
9760 /*
9761 * Try to convert 'tog path' into a 'tog log path' command.
9762 * The user could simply have mistyped the command rather than knowingly
9763 * provided a path. So check whether argv[0] can in fact be resolved
9764 * to a path in the HEAD commit and print a special error if not.
9765 * This hack is for mpi@ <3
9766 */
9767 static const struct got_error *
9768 tog_log_with_path(int argc, char *argv[])
9769 {
9770 const struct got_error *error = NULL, *close_err;
9771 const struct tog_cmd *cmd = NULL;
9772 struct got_repository *repo = NULL;
9773 struct got_worktree *worktree = NULL;
9774 struct got_object_id *commit_id = NULL, *id = NULL;
9775 struct got_commit_object *commit = NULL;
9776 char *cwd = NULL, *repo_path = NULL, *in_repo_path = NULL;
9777 char *commit_id_str = NULL, **cmd_argv = NULL;
9778 int *pack_fds = NULL;
9779
9780 cwd = getcwd(NULL, 0);
9781 if (cwd == NULL)
9782 return got_error_from_errno("getcwd");
9783
9784 error = got_repo_pack_fds_open(&pack_fds);
9785 if (error != NULL)
9786 goto done;
9787
9788 error = got_worktree_open(&worktree, cwd);
9789 if (error && error->code != GOT_ERR_NOT_WORKTREE)
9790 goto done;
9791
9792 if (worktree)
9793 repo_path = strdup(got_worktree_get_repo_path(worktree));
9794 else
9795 repo_path = strdup(cwd);
9796 if (repo_path == NULL) {
9797 error = got_error_from_errno("strdup");
9798 goto done;
9799 }
9800
9801 error = got_repo_open(&repo, repo_path, NULL, pack_fds);
9802 if (error != NULL)
9803 goto done;
9804
9805 error = get_in_repo_path_from_argv0(&in_repo_path, argc, argv,
9806 repo, worktree);
9807 if (error)
9808 goto done;
9809
9810 error = tog_load_refs(repo, 0);
9811 if (error)
9812 goto done;
9813 error = got_repo_match_object_id(&commit_id, NULL, worktree ?
9814 got_worktree_get_head_ref_name(worktree) : GOT_REF_HEAD,
9815 GOT_OBJ_TYPE_COMMIT, &tog_refs, repo);
9816 if (error)
9817 goto done;
9818
9819 if (worktree) {
9820 got_worktree_close(worktree);
9821 worktree = NULL;
9822 }
9823
9824 error = got_object_open_as_commit(&commit, repo, commit_id);
9825 if (error)
9826 goto done;
9827
9828 error = got_object_id_by_path(&id, repo, commit, in_repo_path);
9829 if (error) {
9830 if (error->code != GOT_ERR_NO_TREE_ENTRY)
9831 goto done;
9832 fprintf(stderr, "%s: '%s' is no known command or path\n",
9833 getprogname(), argv[0]);
9834 usage(1, 1);
9835 /* not reached */
9836 }
9837
9838 error = got_object_id_str(&commit_id_str, commit_id);
9839 if (error)
9840 goto done;
9841
9842 cmd = &tog_commands[0]; /* log */
9843 argc = 4;
9844 cmd_argv = make_argv(argc, cmd->name, "-c", commit_id_str, argv[0]);
9845 error = cmd->cmd_main(argc, cmd_argv);
9846 done:
9847 if (repo) {
9848 close_err = got_repo_close(repo);
9849 if (error == NULL)
9850 error = close_err;
9851 }
9852 if (commit)
9853 got_object_commit_close(commit);
9854 if (worktree)
9855 got_worktree_close(worktree);
9856 if (pack_fds) {
9857 const struct got_error *pack_err =
9858 got_repo_pack_fds_close(pack_fds);
9859 if (error == NULL)
9860 error = pack_err;
9861 }
9862 free(id);
9863 free(commit_id_str);
9864 free(commit_id);
9865 free(cwd);
9866 free(repo_path);
9867 free(in_repo_path);
9868 if (cmd_argv) {
9869 int i;
9870 for (i = 0; i < argc; i++)
9871 free(cmd_argv[i]);
9872 free(cmd_argv);
9873 }
9874 tog_free_refs();
9875 return error;
9876 }
9877
9878 int
9879 main(int argc, char *argv[])
9880 {
9881 const struct got_error *io_err, *error = NULL;
9882 const struct tog_cmd *cmd = NULL;
9883 int ch, hflag = 0, Vflag = 0;
9884 char **cmd_argv = NULL;
9885 static const struct option longopts[] = {
9886 { "version", no_argument, NULL, 'V' },
9887 { NULL, 0, NULL, 0}
9888 };
9889 char *diff_algo_str = NULL;
9890 const char *test_script_path;
9891
9892 setlocale(LC_CTYPE, "");
9893
9894 /*
9895 * Test mode init must happen before pledge() because "tty" will
9896 * not allow TTY-related ioctls to occur via regular files.
9897 */
9898 test_script_path = getenv("TOG_TEST_SCRIPT");
9899 if (test_script_path != NULL) {
9900 error = init_mock_term(test_script_path);
9901 if (error) {
9902 fprintf(stderr, "%s: %s\n", getprogname(), error->msg);
9903 return 1;
9904 }
9905 } else if (!isatty(STDIN_FILENO))
9906 errx(1, "standard input is not a tty");
9907
9908 #if !defined(PROFILE)
9909 if (pledge("stdio rpath wpath cpath flock proc tty exec sendfd unveil",
9910 NULL) == -1)
9911 err(1, "pledge");
9912 #endif
9913
9914 while ((ch = getopt_long(argc, argv, "+hV", longopts, NULL)) != -1) {
9915 switch (ch) {
9916 case 'h':
9917 hflag = 1;
9918 break;
9919 case 'V':
9920 Vflag = 1;
9921 break;
9922 default:
9923 usage(hflag, 1);
9924 /* NOTREACHED */
9925 }
9926 }
9927
9928 argc -= optind;
9929 argv += optind;
9930 optind = 1;
9931 optreset = 1;
9932
9933 if (Vflag) {
9934 got_version_print_str();
9935 return 0;
9936 }
9937
9938 if (argc == 0) {
9939 if (hflag)
9940 usage(hflag, 0);
9941 /* Build an argument vector which runs a default command. */
9942 cmd = &tog_commands[0];
9943 argc = 1;
9944 cmd_argv = make_argv(argc, cmd->name);
9945 } else {
9946 size_t i;
9947
9948 /* Did the user specify a command? */
9949 for (i = 0; i < nitems(tog_commands); i++) {
9950 if (strncmp(tog_commands[i].name, argv[0],
9951 strlen(argv[0])) == 0) {
9952 cmd = &tog_commands[i];
9953 break;
9954 }
9955 }
9956 }
9957
9958 diff_algo_str = getenv("TOG_DIFF_ALGORITHM");
9959 if (diff_algo_str) {
9960 if (strcasecmp(diff_algo_str, "patience") == 0)
9961 tog_diff_algo = GOT_DIFF_ALGORITHM_PATIENCE;
9962 if (strcasecmp(diff_algo_str, "myers") == 0)
9963 tog_diff_algo = GOT_DIFF_ALGORITHM_MYERS;
9964 }
9965
9966 if (cmd == NULL) {
9967 if (argc != 1)
9968 usage(0, 1);
9969 /* No command specified; try log with a path */
9970 error = tog_log_with_path(argc, argv);
9971 } else {
9972 if (hflag)
9973 cmd->cmd_usage();
9974 else
9975 error = cmd->cmd_main(argc, cmd_argv ? cmd_argv : argv);
9976 }
9977
9978 if (using_mock_io) {
9979 io_err = tog_io_close();
9980 if (error == NULL)
9981 error = io_err;
9982 }
9983 endwin();
9984 if (cmd_argv) {
9985 int i;
9986 for (i = 0; i < argc; i++)
9987 free(cmd_argv[i]);
9988 free(cmd_argv);
9989 }
9990
9991 if (error && error->code != GOT_ERR_CANCELLED &&
9992 error->code != GOT_ERR_EOF &&
9993 error->code != GOT_ERR_PRIVSEP_EXIT &&
9994 error->code != GOT_ERR_PRIVSEP_PIPE &&
9995 !(error->code == GOT_ERR_ERRNO && errno == EINTR))
9996 fprintf(stderr, "%s: %s\n", getprogname(), error->msg);
9997 return 0;
9998 }
portable version of Game of Trees