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got: implement diffstat for got log and tog diff view
[got-portable.git] / tog / tog.c
blobff5f1a7aa6b97fe6f63e22a55e2ffa4049c5db27
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 <sys/queue.h>
18 #include <sys/stat.h>
19 #include <sys/ioctl.h>
20
21 #include <ctype.h>
22 #include <errno.h>
23 #if defined(__FreeBSD__) || defined(__APPLE__)
24 #define _XOPEN_SOURCE_EXTENDED /* for ncurses wide-character functions */
25 #endif
26 #include <curses.h>
27 #include <panel.h>
28 #include <locale.h>
29 #include <signal.h>
30 #include <stdlib.h>
31 #include <stdarg.h>
32 #include <stdio.h>
33 #include <getopt.h>
34 #include <string.h>
35 #include <err.h>
36 #include <unistd.h>
37 #include <limits.h>
38 #include <wchar.h>
39 #include <time.h>
40 #include <pthread.h>
41 #include <libgen.h>
42 #include <regex.h>
43 #include <sched.h>
44
45 #include "got_compat.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 0.3 /* 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 };
440
441 struct tog_blame {
442 FILE *f;
443 off_t filesize;
444 struct tog_blame_line *lines;
445 int nlines;
446 off_t *line_offsets;
447 pthread_t thread;
448 struct tog_blame_thread_args thread_args;
449 struct tog_blame_cb_args cb_args;
450 const char *path;
451 int *pack_fds;
452 };
453
454 struct tog_blame_view_state {
455 int first_displayed_line;
456 int last_displayed_line;
457 int selected_line;
458 int last_diffed_line;
459 int blame_complete;
460 int eof;
461 int done;
462 struct got_object_id_queue blamed_commits;
463 struct got_object_qid *blamed_commit;
464 char *path;
465 struct got_repository *repo;
466 struct got_object_id *commit_id;
467 struct got_object_id *id_to_log;
468 struct tog_blame blame;
469 int matched_line;
470 struct tog_colors colors;
471 };
472
473 struct tog_parent_tree {
474 TAILQ_ENTRY(tog_parent_tree) entry;
475 struct got_tree_object *tree;
476 struct got_tree_entry *first_displayed_entry;
477 struct got_tree_entry *selected_entry;
478 int selected;
479 };
480
481 TAILQ_HEAD(tog_parent_trees, tog_parent_tree);
482
483 struct tog_tree_view_state {
484 char *tree_label;
485 struct got_object_id *commit_id;/* commit which this tree belongs to */
486 struct got_tree_object *root; /* the commit's root tree entry */
487 struct got_tree_object *tree; /* currently displayed (sub-)tree */
488 struct got_tree_entry *first_displayed_entry;
489 struct got_tree_entry *last_displayed_entry;
490 struct got_tree_entry *selected_entry;
491 int ndisplayed, selected, show_ids;
492 struct tog_parent_trees parents; /* parent trees of current sub-tree */
493 char *head_ref_name;
494 struct got_repository *repo;
495 struct got_tree_entry *matched_entry;
496 struct tog_colors colors;
497 };
498
499 struct tog_reflist_entry {
500 TAILQ_ENTRY(tog_reflist_entry) entry;
501 struct got_reference *ref;
502 int idx;
503 };
504
505 TAILQ_HEAD(tog_reflist_head, tog_reflist_entry);
506
507 struct tog_ref_view_state {
508 struct tog_reflist_head refs;
509 struct tog_reflist_entry *first_displayed_entry;
510 struct tog_reflist_entry *last_displayed_entry;
511 struct tog_reflist_entry *selected_entry;
512 int nrefs, ndisplayed, selected, show_date, show_ids, sort_by_date;
513 struct got_repository *repo;
514 struct tog_reflist_entry *matched_entry;
515 struct tog_colors colors;
516 };
517
518 struct tog_help_view_state {
519 FILE *f;
520 off_t *line_offsets;
521 size_t nlines;
522 int lineno;
523 int first_displayed_line;
524 int last_displayed_line;
525 int eof;
526 int matched_line;
527 int selected_line;
528 int all;
529 enum tog_keymap_type type;
530 };
531
532 #define GENERATE_HELP \
533 KEYMAP_("Global", TOG_KEYMAP_GLOBAL), \
534 KEY_("H F1", "Open view-specific help (double tap for all help)"), \
535 KEY_("k C-p Up", "Move cursor or page up one line"), \
536 KEY_("j C-n Down", "Move cursor or page down one line"), \
537 KEY_("C-b b PgUp", "Scroll the view up one page"), \
538 KEY_("C-f f PgDn Space", "Scroll the view down one page"), \
539 KEY_("C-u u", "Scroll the view up one half page"), \
540 KEY_("C-d d", "Scroll the view down one half page"), \
541 KEY_("g Home", "Go to line N (default: first line)"), \
542 KEY_("G End", "Go to line N (default: last line)"), \
543 KEY_("l Right", "Scroll the view right"), \
544 KEY_("h Left", "Scroll the view left"), \
545 KEY_("$", "Scroll view to the rightmost position"), \
546 KEY_("0", "Scroll view to the leftmost position"), \
547 KEY_("-", "Decrease size of the focussed split"), \
548 KEY_("+", "Increase size of the focussed split"), \
549 KEY_("Tab", "Switch focus between views"), \
550 KEY_("F", "Toggle fullscreen mode"), \
551 KEY_("/", "Open prompt to enter search term"), \
552 KEY_("n", "Find next line/token matching the current search term"), \
553 KEY_("N", "Find previous line/token matching the current search term"),\
554 KEY_("q", "Quit the focussed view; Quit help screen"), \
555 KEY_("Q", "Quit tog"), \
556 \
557 KEYMAP_("Log view", TOG_KEYMAP_LOG), \
558 KEY_("< ,", "Move cursor up one commit"), \
559 KEY_("> .", "Move cursor down one commit"), \
560 KEY_("Enter", "Open diff view of the selected commit"), \
561 KEY_("B", "Reload the log view and toggle display of merged commits"), \
562 KEY_("R", "Open ref view of all repository references"), \
563 KEY_("T", "Display tree view of the repository from the selected" \
564 " commit"), \
565 KEY_("@", "Toggle between displaying author and committer name"), \
566 KEY_("&", "Open prompt to enter term to limit commits displayed"), \
567 KEY_("C-g Backspace", "Cancel current search or log operation"), \
568 KEY_("C-l", "Reload the log view with new commits in the repository"), \
569 \
570 KEYMAP_("Diff view", TOG_KEYMAP_DIFF), \
571 KEY_("K < ,", "Display diff of next line in the file/log entry"), \
572 KEY_("J > .", "Display diff of previous line in the file/log entry"), \
573 KEY_("A", "Toggle between Myers and Patience diff algorithm"), \
574 KEY_("a", "Toggle treatment of file as ASCII irrespective of binary" \
575 " data"), \
576 KEY_("(", "Go to the previous file in the diff"), \
577 KEY_(")", "Go to the next file in the diff"), \
578 KEY_("{", "Go to the previous hunk in the diff"), \
579 KEY_("}", "Go to the next hunk in the diff"), \
580 KEY_("[", "Decrease the number of context lines"), \
581 KEY_("]", "Increase the number of context lines"), \
582 KEY_("w", "Toggle ignore whitespace-only changes in the diff"), \
583 \
584 KEYMAP_("Blame view", TOG_KEYMAP_BLAME), \
585 KEY_("Enter", "Display diff view of the selected line's commit"), \
586 KEY_("A", "Toggle diff algorithm between Myers and Patience"), \
587 KEY_("L", "Open log view for the currently selected annotated line"), \
588 KEY_("C", "Reload view with the previously blamed commit"), \
589 KEY_("c", "Reload view with the version of the file found in the" \
590 " selected line's commit"), \
591 KEY_("p", "Reload view with the version of the file found in the" \
592 " selected line's parent commit"), \
593 \
594 KEYMAP_("Tree view", TOG_KEYMAP_TREE), \
595 KEY_("Enter", "Enter selected directory or open blame view of the" \
596 " selected file"), \
597 KEY_("L", "Open log view for the selected entry"), \
598 KEY_("R", "Open ref view of all repository references"), \
599 KEY_("i", "Show object IDs for all tree entries"), \
600 KEY_("Backspace", "Return to the parent directory"), \
601 \
602 KEYMAP_("Ref view", TOG_KEYMAP_REF), \
603 KEY_("Enter", "Display log view of the selected reference"), \
604 KEY_("T", "Display tree view of the selected reference"), \
605 KEY_("i", "Toggle display of IDs for all non-symbolic references"), \
606 KEY_("m", "Toggle display of last modified date for each reference"), \
607 KEY_("o", "Toggle reference sort order (name -> timestamp)"), \
608 KEY_("C-l", "Reload view with all repository references")
609
610 struct tog_key_map {
611 const char *keys;
612 const char *info;
613 enum tog_keymap_type type;
614 };
615
616 /*
617 * We implement two types of views: parent views and child views.
618 *
619 * The 'Tab' key switches focus between a parent view and its child view.
620 * Child views are shown side-by-side to their parent view, provided
621 * there is enough screen estate.
622 *
623 * When a new view is opened from within a parent view, this new view
624 * becomes a child view of the parent view, replacing any existing child.
625 *
626 * When a new view is opened from within a child view, this new view
627 * becomes a parent view which will obscure the views below until the
628 * user quits the new parent view by typing 'q'.
629 *
630 * This list of views contains parent views only.
631 * Child views are only pointed to by their parent view.
632 */
633 TAILQ_HEAD(tog_view_list_head, tog_view);
634
635 struct tog_view {
636 TAILQ_ENTRY(tog_view) entry;
637 WINDOW *window;
638 PANEL *panel;
639 int nlines, ncols, begin_y, begin_x; /* based on split height/width */
640 int resized_y, resized_x; /* begin_y/x based on user resizing */
641 int maxx, x; /* max column and current start column */
642 int lines, cols; /* copies of LINES and COLS */
643 int nscrolled, offset; /* lines scrolled and hsplit line offset */
644 int gline, hiline; /* navigate to and highlight this nG line */
645 int ch, count; /* current keymap and count prefix */
646 int resized; /* set when in a resize event */
647 int focussed; /* Only set on one parent or child view at a time. */
648 int dying;
649 struct tog_view *parent;
650 struct tog_view *child;
651
652 /*
653 * This flag is initially set on parent views when a new child view
654 * is created. It gets toggled when the 'Tab' key switches focus
655 * between parent and child.
656 * The flag indicates whether focus should be passed on to our child
657 * view if this parent view gets picked for focus after another parent
658 * view was closed. This prevents child views from losing focus in such
659 * situations.
660 */
661 int focus_child;
662
663 enum tog_view_mode mode;
664 /* type-specific state */
665 enum tog_view_type type;
666 union {
667 struct tog_diff_view_state diff;
668 struct tog_log_view_state log;
669 struct tog_blame_view_state blame;
670 struct tog_tree_view_state tree;
671 struct tog_ref_view_state ref;
672 struct tog_help_view_state help;
673 } state;
674
675 const struct got_error *(*show)(struct tog_view *);
676 const struct got_error *(*input)(struct tog_view **,
677 struct tog_view *, int);
678 const struct got_error *(*reset)(struct tog_view *);
679 const struct got_error *(*resize)(struct tog_view *, int);
680 const struct got_error *(*close)(struct tog_view *);
681
682 const struct got_error *(*search_start)(struct tog_view *);
683 const struct got_error *(*search_next)(struct tog_view *);
684 void (*search_setup)(struct tog_view *, FILE **, off_t **, size_t *,
685 int **, int **, int **, int **);
686 int search_started;
687 int searching;
688 #define TOG_SEARCH_FORWARD 1
689 #define TOG_SEARCH_BACKWARD 2
690 int search_next_done;
691 #define TOG_SEARCH_HAVE_MORE 1
692 #define TOG_SEARCH_NO_MORE 2
693 #define TOG_SEARCH_HAVE_NONE 3
694 regex_t regex;
695 regmatch_t regmatch;
696 };
697
698 static const struct got_error *open_diff_view(struct tog_view *,
699 struct got_object_id *, struct got_object_id *,
700 const char *, const char *, int, int, int, struct tog_view *,
701 struct got_repository *);
702 static const struct got_error *show_diff_view(struct tog_view *);
703 static const struct got_error *input_diff_view(struct tog_view **,
704 struct tog_view *, int);
705 static const struct got_error *reset_diff_view(struct tog_view *);
706 static const struct got_error* close_diff_view(struct tog_view *);
707 static const struct got_error *search_start_diff_view(struct tog_view *);
708 static void search_setup_diff_view(struct tog_view *, FILE **, off_t **,
709 size_t *, int **, int **, int **, int **);
710 static const struct got_error *search_next_view_match(struct tog_view *);
711
712 static const struct got_error *open_log_view(struct tog_view *,
713 struct got_object_id *, struct got_repository *,
714 const char *, const char *, int);
715 static const struct got_error * show_log_view(struct tog_view *);
716 static const struct got_error *input_log_view(struct tog_view **,
717 struct tog_view *, int);
718 static const struct got_error *resize_log_view(struct tog_view *, int);
719 static const struct got_error *close_log_view(struct tog_view *);
720 static const struct got_error *search_start_log_view(struct tog_view *);
721 static const struct got_error *search_next_log_view(struct tog_view *);
722
723 static const struct got_error *open_blame_view(struct tog_view *, char *,
724 struct got_object_id *, struct got_repository *);
725 static const struct got_error *show_blame_view(struct tog_view *);
726 static const struct got_error *input_blame_view(struct tog_view **,
727 struct tog_view *, int);
728 static const struct got_error *reset_blame_view(struct tog_view *);
729 static const struct got_error *close_blame_view(struct tog_view *);
730 static const struct got_error *search_start_blame_view(struct tog_view *);
731 static void search_setup_blame_view(struct tog_view *, FILE **, off_t **,
732 size_t *, int **, int **, int **, int **);
733
734 static const struct got_error *open_tree_view(struct tog_view *,
735 struct got_object_id *, const char *, struct got_repository *);
736 static const struct got_error *show_tree_view(struct tog_view *);
737 static const struct got_error *input_tree_view(struct tog_view **,
738 struct tog_view *, int);
739 static const struct got_error *close_tree_view(struct tog_view *);
740 static const struct got_error *search_start_tree_view(struct tog_view *);
741 static const struct got_error *search_next_tree_view(struct tog_view *);
742
743 static const struct got_error *open_ref_view(struct tog_view *,
744 struct got_repository *);
745 static const struct got_error *show_ref_view(struct tog_view *);
746 static const struct got_error *input_ref_view(struct tog_view **,
747 struct tog_view *, int);
748 static const struct got_error *close_ref_view(struct tog_view *);
749 static const struct got_error *search_start_ref_view(struct tog_view *);
750 static const struct got_error *search_next_ref_view(struct tog_view *);
751
752 static const struct got_error *open_help_view(struct tog_view *,
753 struct tog_view *);
754 static const struct got_error *show_help_view(struct tog_view *);
755 static const struct got_error *input_help_view(struct tog_view **,
756 struct tog_view *, int);
757 static const struct got_error *reset_help_view(struct tog_view *);
758 static const struct got_error* close_help_view(struct tog_view *);
759 static const struct got_error *search_start_help_view(struct tog_view *);
760 static void search_setup_help_view(struct tog_view *, FILE **, off_t **,
761 size_t *, int **, int **, int **, int **);
762
763 static volatile sig_atomic_t tog_sigwinch_received;
764 static volatile sig_atomic_t tog_sigpipe_received;
765 static volatile sig_atomic_t tog_sigcont_received;
766 static volatile sig_atomic_t tog_sigint_received;
767 static volatile sig_atomic_t tog_sigterm_received;
768
769 static void
770 tog_sigwinch(int signo)
771 {
772 tog_sigwinch_received = 1;
773 }
774
775 static void
776 tog_sigpipe(int signo)
777 {
778 tog_sigpipe_received = 1;
779 }
780
781 static void
782 tog_sigcont(int signo)
783 {
784 tog_sigcont_received = 1;
785 }
786
787 static void
788 tog_sigint(int signo)
789 {
790 tog_sigint_received = 1;
791 }
792
793 static void
794 tog_sigterm(int signo)
795 {
796 tog_sigterm_received = 1;
797 }
798
799 static int
800 tog_fatal_signal_received(void)
801 {
802 return (tog_sigpipe_received ||
803 tog_sigint_received || tog_sigterm_received);
804 }
805
806 static const struct got_error *
807 view_close(struct tog_view *view)
808 {
809 const struct got_error *err = NULL, *child_err = NULL;
810
811 if (view->child) {
812 child_err = view_close(view->child);
813 view->child = NULL;
814 }
815 if (view->close)
816 err = view->close(view);
817 if (view->panel)
818 del_panel(view->panel);
819 if (view->window)
820 delwin(view->window);
821 free(view);
822 return err ? err : child_err;
823 }
824
825 static struct tog_view *
826 view_open(int nlines, int ncols, int begin_y, int begin_x,
827 enum tog_view_type type)
828 {
829 struct tog_view *view = calloc(1, sizeof(*view));
830
831 if (view == NULL)
832 return NULL;
833
834 view->type = type;
835 view->lines = LINES;
836 view->cols = COLS;
837 view->nlines = nlines ? nlines : LINES - begin_y;
838 view->ncols = ncols ? ncols : COLS - begin_x;
839 view->begin_y = begin_y;
840 view->begin_x = begin_x;
841 view->window = newwin(nlines, ncols, begin_y, begin_x);
842 if (view->window == NULL) {
843 view_close(view);
844 return NULL;
845 }
846 view->panel = new_panel(view->window);
847 if (view->panel == NULL ||
848 set_panel_userptr(view->panel, view) != OK) {
849 view_close(view);
850 return NULL;
851 }
852
853 keypad(view->window, TRUE);
854 return view;
855 }
856
857 static int
858 view_split_begin_x(int begin_x)
859 {
860 if (begin_x > 0 || COLS < 120)
861 return 0;
862 return (COLS - MAX(COLS / 2, 80));
863 }
864
865 /* XXX Stub till we decide what to do. */
866 static int
867 view_split_begin_y(int lines)
868 {
869 return lines * HSPLIT_SCALE;
870 }
871
872 static const struct got_error *view_resize(struct tog_view *);
873
874 static const struct got_error *
875 view_splitscreen(struct tog_view *view)
876 {
877 const struct got_error *err = NULL;
878
879 if (!view->resized && view->mode == TOG_VIEW_SPLIT_HRZN) {
880 if (view->resized_y && view->resized_y < view->lines)
881 view->begin_y = view->resized_y;
882 else
883 view->begin_y = view_split_begin_y(view->nlines);
884 view->begin_x = 0;
885 } else if (!view->resized) {
886 if (view->resized_x && view->resized_x < view->cols - 1 &&
887 view->cols > 119)
888 view->begin_x = view->resized_x;
889 else
890 view->begin_x = view_split_begin_x(0);
891 view->begin_y = 0;
892 }
893 view->nlines = LINES - view->begin_y;
894 view->ncols = COLS - view->begin_x;
895 view->lines = LINES;
896 view->cols = COLS;
897 err = view_resize(view);
898 if (err)
899 return err;
900
901 if (view->parent && view->mode == TOG_VIEW_SPLIT_HRZN)
902 view->parent->nlines = view->begin_y;
903
904 if (mvwin(view->window, view->begin_y, view->begin_x) == ERR)
905 return got_error_from_errno("mvwin");
906
907 return NULL;
908 }
909
910 static const struct got_error *
911 view_fullscreen(struct tog_view *view)
912 {
913 const struct got_error *err = NULL;
914
915 view->begin_x = 0;
916 view->begin_y = view->resized ? view->begin_y : 0;
917 view->nlines = view->resized ? view->nlines : LINES;
918 view->ncols = COLS;
919 view->lines = LINES;
920 view->cols = COLS;
921 err = view_resize(view);
922 if (err)
923 return err;
924
925 if (mvwin(view->window, view->begin_y, view->begin_x) == ERR)
926 return got_error_from_errno("mvwin");
927
928 return NULL;
929 }
930
931 static int
932 view_is_parent_view(struct tog_view *view)
933 {
934 return view->parent == NULL;
935 }
936
937 static int
938 view_is_splitscreen(struct tog_view *view)
939 {
940 return view->begin_x > 0 || view->begin_y > 0;
941 }
942
943 static int
944 view_is_fullscreen(struct tog_view *view)
945 {
946 return view->nlines == LINES && view->ncols == COLS;
947 }
948
949 static int
950 view_is_hsplit_top(struct tog_view *view)
951 {
952 return view->mode == TOG_VIEW_SPLIT_HRZN && view->child &&
953 view_is_splitscreen(view->child);
954 }
955
956 static void
957 view_border(struct tog_view *view)
958 {
959 PANEL *panel;
960 const struct tog_view *view_above;
961
962 if (view->parent)
963 return view_border(view->parent);
964
965 panel = panel_above(view->panel);
966 if (panel == NULL)
967 return;
968
969 view_above = panel_userptr(panel);
970 if (view->mode == TOG_VIEW_SPLIT_HRZN)
971 mvwhline(view->window, view_above->begin_y - 1,
972 view->begin_x, got_locale_is_utf8() ?
973 ACS_HLINE : '-', view->ncols);
974 else
975 mvwvline(view->window, view->begin_y, view_above->begin_x - 1,
976 got_locale_is_utf8() ? ACS_VLINE : '|', view->nlines);
977 }
978
979 static const struct got_error *view_init_hsplit(struct tog_view *, int);
980 static const struct got_error *request_log_commits(struct tog_view *);
981 static const struct got_error *offset_selection_down(struct tog_view *);
982 static void offset_selection_up(struct tog_view *);
983 static void view_get_split(struct tog_view *, int *, int *);
984
985 static const struct got_error *
986 view_resize(struct tog_view *view)
987 {
988 const struct got_error *err = NULL;
989 int dif, nlines, ncols;
990
991 dif = LINES - view->lines; /* line difference */
992
993 if (view->lines > LINES)
994 nlines = view->nlines - (view->lines - LINES);
995 else
996 nlines = view->nlines + (LINES - view->lines);
997 if (view->cols > COLS)
998 ncols = view->ncols - (view->cols - COLS);
999 else
1000 ncols = view->ncols + (COLS - view->cols);
1001
1002 if (view->child) {
1003 int hs = view->child->begin_y;
1004
1005 if (!view_is_fullscreen(view))
1006 view->child->begin_x = view_split_begin_x(view->begin_x);
1007 if (view->mode == TOG_VIEW_SPLIT_HRZN ||
1008 view->child->begin_x == 0) {
1009 ncols = COLS;
1010
1011 view_fullscreen(view->child);
1012 if (view->child->focussed)
1013 show_panel(view->child->panel);
1014 else
1015 show_panel(view->panel);
1016 } else {
1017 ncols = view->child->begin_x;
1018
1019 view_splitscreen(view->child);
1020 show_panel(view->child->panel);
1021 }
1022 /*
1023 * XXX This is ugly and needs to be moved into the above
1024 * logic but "works" for now and my attempts at moving it
1025 * break either 'tab' or 'F' key maps in horizontal splits.
1026 */
1027 if (hs) {
1028 err = view_splitscreen(view->child);
1029 if (err)
1030 return err;
1031 if (dif < 0) { /* top split decreased */
1032 err = offset_selection_down(view);
1033 if (err)
1034 return err;
1035 }
1036 view_border(view);
1037 update_panels();
1038 doupdate();
1039 show_panel(view->child->panel);
1040 nlines = view->nlines;
1041 }
1042 } else if (view->parent == NULL)
1043 ncols = COLS;
1044
1045 if (view->resize && dif > 0) {
1046 err = view->resize(view, dif);
1047 if (err)
1048 return err;
1049 }
1050
1051 if (wresize(view->window, nlines, ncols) == ERR)
1052 return got_error_from_errno("wresize");
1053 if (replace_panel(view->panel, view->window) == ERR)
1054 return got_error_from_errno("replace_panel");
1055 wclear(view->window);
1056
1057 view->nlines = nlines;
1058 view->ncols = ncols;
1059 view->lines = LINES;
1060 view->cols = COLS;
1061
1062 return NULL;
1063 }
1064
1065 static const struct got_error *
1066 resize_log_view(struct tog_view *view, int increase)
1067 {
1068 struct tog_log_view_state *s = &view->state.log;
1069 const struct got_error *err = NULL;
1070 int n = 0;
1071
1072 if (s->selected_entry)
1073 n = s->selected_entry->idx + view->lines - s->selected;
1074
1075 /*
1076 * Request commits to account for the increased
1077 * height so we have enough to populate the view.
1078 */
1079 if (s->commits->ncommits < n) {
1080 view->nscrolled = n - s->commits->ncommits + increase + 1;
1081 err = request_log_commits(view);
1082 }
1083
1084 return err;
1085 }
1086
1087 static void
1088 view_adjust_offset(struct tog_view *view, int n)
1089 {
1090 if (n == 0)
1091 return;
1092
1093 if (view->parent && view->parent->offset) {
1094 if (view->parent->offset + n >= 0)
1095 view->parent->offset += n;
1096 else
1097 view->parent->offset = 0;
1098 } else if (view->offset) {
1099 if (view->offset - n >= 0)
1100 view->offset -= n;
1101 else
1102 view->offset = 0;
1103 }
1104 }
1105
1106 static const struct got_error *
1107 view_resize_split(struct tog_view *view, int resize)
1108 {
1109 const struct got_error *err = NULL;
1110 struct tog_view *v = NULL;
1111
1112 if (view->parent)
1113 v = view->parent;
1114 else
1115 v = view;
1116
1117 if (!v->child || !view_is_splitscreen(v->child))
1118 return NULL;
1119
1120 v->resized = v->child->resized = resize; /* lock for resize event */
1121
1122 if (view->mode == TOG_VIEW_SPLIT_HRZN) {
1123 if (v->child->resized_y)
1124 v->child->begin_y = v->child->resized_y;
1125 if (view->parent)
1126 v->child->begin_y -= resize;
1127 else
1128 v->child->begin_y += resize;
1129 if (v->child->begin_y < 3) {
1130 view->count = 0;
1131 v->child->begin_y = 3;
1132 } else if (v->child->begin_y > LINES - 1) {
1133 view->count = 0;
1134 v->child->begin_y = LINES - 1;
1135 }
1136 v->ncols = COLS;
1137 v->child->ncols = COLS;
1138 view_adjust_offset(view, resize);
1139 err = view_init_hsplit(v, v->child->begin_y);
1140 if (err)
1141 return err;
1142 v->child->resized_y = v->child->begin_y;
1143 } else {
1144 if (v->child->resized_x)
1145 v->child->begin_x = v->child->resized_x;
1146 if (view->parent)
1147 v->child->begin_x -= resize;
1148 else
1149 v->child->begin_x += resize;
1150 if (v->child->begin_x < 11) {
1151 view->count = 0;
1152 v->child->begin_x = 11;
1153 } else if (v->child->begin_x > COLS - 1) {
1154 view->count = 0;
1155 v->child->begin_x = COLS - 1;
1156 }
1157 v->child->resized_x = v->child->begin_x;
1158 }
1159
1160 v->child->mode = v->mode;
1161 v->child->nlines = v->lines - v->child->begin_y;
1162 v->child->ncols = v->cols - v->child->begin_x;
1163 v->focus_child = 1;
1164
1165 err = view_fullscreen(v);
1166 if (err)
1167 return err;
1168 err = view_splitscreen(v->child);
1169 if (err)
1170 return err;
1171
1172 if (v->mode == TOG_VIEW_SPLIT_HRZN) {
1173 err = offset_selection_down(v->child);
1174 if (err)
1175 return err;
1176 }
1177
1178 if (v->resize)
1179 err = v->resize(v, 0);
1180 else if (v->child->resize)
1181 err = v->child->resize(v->child, 0);
1182
1183 v->resized = v->child->resized = 0;
1184
1185 return err;
1186 }
1187
1188 static void
1189 view_transfer_size(struct tog_view *dst, struct tog_view *src)
1190 {
1191 struct tog_view *v = src->child ? src->child : src;
1192
1193 dst->resized_x = v->resized_x;
1194 dst->resized_y = v->resized_y;
1195 }
1196
1197 static const struct got_error *
1198 view_close_child(struct tog_view *view)
1199 {
1200 const struct got_error *err = NULL;
1201
1202 if (view->child == NULL)
1203 return NULL;
1204
1205 err = view_close(view->child);
1206 view->child = NULL;
1207 return err;
1208 }
1209
1210 static const struct got_error *
1211 view_set_child(struct tog_view *view, struct tog_view *child)
1212 {
1213 const struct got_error *err = NULL;
1214
1215 view->child = child;
1216 child->parent = view;
1217
1218 err = view_resize(view);
1219 if (err)
1220 return err;
1221
1222 if (view->child->resized_x || view->child->resized_y)
1223 err = view_resize_split(view, 0);
1224
1225 return err;
1226 }
1227
1228 static const struct got_error *view_dispatch_request(struct tog_view **,
1229 struct tog_view *, enum tog_view_type, int, int);
1230
1231 static const struct got_error *
1232 view_request_new(struct tog_view **requested, struct tog_view *view,
1233 enum tog_view_type request)
1234 {
1235 struct tog_view *new_view = NULL;
1236 const struct got_error *err;
1237 int y = 0, x = 0;
1238
1239 *requested = NULL;
1240
1241 if (view_is_parent_view(view) && request != TOG_VIEW_HELP)
1242 view_get_split(view, &y, &x);
1243
1244 err = view_dispatch_request(&new_view, view, request, y, x);
1245 if (err)
1246 return err;
1247
1248 if (view_is_parent_view(view) && view->mode == TOG_VIEW_SPLIT_HRZN &&
1249 request != TOG_VIEW_HELP) {
1250 err = view_init_hsplit(view, y);
1251 if (err)
1252 return err;
1253 }
1254
1255 view->focussed = 0;
1256 new_view->focussed = 1;
1257 new_view->mode = view->mode;
1258 new_view->nlines = request == TOG_VIEW_HELP ?
1259 view->lines : view->lines - y;
1260
1261 if (view_is_parent_view(view) && request != TOG_VIEW_HELP) {
1262 view_transfer_size(new_view, view);
1263 err = view_close_child(view);
1264 if (err)
1265 return err;
1266 err = view_set_child(view, new_view);
1267 if (err)
1268 return err;
1269 view->focus_child = 1;
1270 } else
1271 *requested = new_view;
1272
1273 return NULL;
1274 }
1275
1276 static void
1277 tog_resizeterm(void)
1278 {
1279 int cols, lines;
1280 struct winsize size;
1281
1282 if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &size) < 0) {
1283 cols = 80; /* Default */
1284 lines = 24;
1285 } else {
1286 cols = size.ws_col;
1287 lines = size.ws_row;
1288 }
1289 resize_term(lines, cols);
1290 }
1291
1292 static const struct got_error *
1293 view_search_start(struct tog_view *view)
1294 {
1295 const struct got_error *err = NULL;
1296 struct tog_view *v = view;
1297 char pattern[1024];
1298 int ret;
1299
1300 if (view->search_started) {
1301 regfree(&view->regex);
1302 view->searching = 0;
1303 memset(&view->regmatch, 0, sizeof(view->regmatch));
1304 }
1305 view->search_started = 0;
1306
1307 if (view->nlines < 1)
1308 return NULL;
1309
1310 if (view_is_hsplit_top(view))
1311 v = view->child;
1312 else if (view->mode == TOG_VIEW_SPLIT_VERT && view->parent)
1313 v = view->parent;
1314
1315 mvwaddstr(v->window, v->nlines - 1, 0, "/");
1316 wclrtoeol(v->window);
1317
1318 nodelay(v->window, FALSE); /* block for search term input */
1319 nocbreak();
1320 echo();
1321 ret = wgetnstr(v->window, pattern, sizeof(pattern));
1322 wrefresh(v->window);
1323 cbreak();
1324 noecho();
1325 nodelay(v->window, TRUE);
1326 if (ret == ERR)
1327 return NULL;
1328
1329 if (regcomp(&view->regex, pattern, REG_EXTENDED | REG_NEWLINE) == 0) {
1330 err = view->search_start(view);
1331 if (err) {
1332 regfree(&view->regex);
1333 return err;
1334 }
1335 view->search_started = 1;
1336 view->searching = TOG_SEARCH_FORWARD;
1337 view->search_next_done = 0;
1338 view->search_next(view);
1339 }
1340
1341 return NULL;
1342 }
1343
1344 /* Switch split mode. If view is a parent or child, draw the new splitscreen. */
1345 static const struct got_error *
1346 switch_split(struct tog_view *view)
1347 {
1348 const struct got_error *err = NULL;
1349 struct tog_view *v = NULL;
1350
1351 if (view->parent)
1352 v = view->parent;
1353 else
1354 v = view;
1355
1356 if (v->mode == TOG_VIEW_SPLIT_HRZN)
1357 v->mode = TOG_VIEW_SPLIT_VERT;
1358 else
1359 v->mode = TOG_VIEW_SPLIT_HRZN;
1360
1361 if (!v->child)
1362 return NULL;
1363 else if (v->mode == TOG_VIEW_SPLIT_VERT && v->cols < 120)
1364 v->mode = TOG_VIEW_SPLIT_NONE;
1365
1366 view_get_split(v, &v->child->begin_y, &v->child->begin_x);
1367 if (v->mode == TOG_VIEW_SPLIT_HRZN && v->child->resized_y)
1368 v->child->begin_y = v->child->resized_y;
1369 else if (v->mode == TOG_VIEW_SPLIT_VERT && v->child->resized_x)
1370 v->child->begin_x = v->child->resized_x;
1371
1372
1373 if (v->mode == TOG_VIEW_SPLIT_HRZN) {
1374 v->ncols = COLS;
1375 v->child->ncols = COLS;
1376 v->child->nscrolled = LINES - v->child->nlines;
1377
1378 err = view_init_hsplit(v, v->child->begin_y);
1379 if (err)
1380 return err;
1381 }
1382 v->child->mode = v->mode;
1383 v->child->nlines = v->lines - v->child->begin_y;
1384 v->focus_child = 1;
1385
1386 err = view_fullscreen(v);
1387 if (err)
1388 return err;
1389 err = view_splitscreen(v->child);
1390 if (err)
1391 return err;
1392
1393 if (v->mode == TOG_VIEW_SPLIT_NONE)
1394 v->mode = TOG_VIEW_SPLIT_VERT;
1395 if (v->mode == TOG_VIEW_SPLIT_HRZN) {
1396 err = offset_selection_down(v);
1397 if (err)
1398 return err;
1399 err = offset_selection_down(v->child);
1400 if (err)
1401 return err;
1402 } else {
1403 offset_selection_up(v);
1404 offset_selection_up(v->child);
1405 }
1406 if (v->resize)
1407 err = v->resize(v, 0);
1408 else if (v->child->resize)
1409 err = v->child->resize(v->child, 0);
1410
1411 return err;
1412 }
1413
1414 /*
1415 * Compute view->count from numeric input. Assign total to view->count and
1416 * return first non-numeric key entered.
1417 */
1418 static int
1419 get_compound_key(struct tog_view *view, int c)
1420 {
1421 struct tog_view *v = view;
1422 int x, n = 0;
1423
1424 if (view_is_hsplit_top(view))
1425 v = view->child;
1426 else if (view->mode == TOG_VIEW_SPLIT_VERT && view->parent)
1427 v = view->parent;
1428
1429 view->count = 0;
1430 cbreak(); /* block for input */
1431 nodelay(view->window, FALSE);
1432 wmove(v->window, v->nlines - 1, 0);
1433 wclrtoeol(v->window);
1434 waddch(v->window, ':');
1435
1436 do {
1437 x = getcurx(v->window);
1438 if (x != ERR && x < view->ncols) {
1439 waddch(v->window, c);
1440 wrefresh(v->window);
1441 }
1442
1443 /*
1444 * Don't overflow. Max valid request should be the greatest
1445 * between the longest and total lines; cap at 10 million.
1446 */
1447 if (n >= 9999999)
1448 n = 9999999;
1449 else
1450 n = n * 10 + (c - '0');
1451 } while (((c = wgetch(view->window))) >= '0' && c <= '9' && c != ERR);
1452
1453 if (c == 'G' || c == 'g') { /* nG key map */
1454 view->gline = view->hiline = n;
1455 n = 0;
1456 c = 0;
1457 }
1458
1459 /* Massage excessive or inapplicable values at the input handler. */
1460 view->count = n;
1461
1462 return c;
1463 }
1464
1465 static const struct got_error *
1466 view_input(struct tog_view **new, int *done, struct tog_view *view,
1467 struct tog_view_list_head *views)
1468 {
1469 const struct got_error *err = NULL;
1470 struct tog_view *v;
1471 int ch, errcode;
1472
1473 *new = NULL;
1474
1475 /* Clear "no matches" indicator. */
1476 if (view->search_next_done == TOG_SEARCH_NO_MORE ||
1477 view->search_next_done == TOG_SEARCH_HAVE_NONE) {
1478 view->search_next_done = TOG_SEARCH_HAVE_MORE;
1479 view->count = 0;
1480 }
1481
1482 if (view->searching && !view->search_next_done) {
1483 errcode = pthread_mutex_unlock(&tog_mutex);
1484 if (errcode)
1485 return got_error_set_errno(errcode,
1486 "pthread_mutex_unlock");
1487 sched_yield();
1488 errcode = pthread_mutex_lock(&tog_mutex);
1489 if (errcode)
1490 return got_error_set_errno(errcode,
1491 "pthread_mutex_lock");
1492 view->search_next(view);
1493 return NULL;
1494 }
1495
1496 /* Allow threads to make progress while we are waiting for input. */
1497 errcode = pthread_mutex_unlock(&tog_mutex);
1498 if (errcode)
1499 return got_error_set_errno(errcode, "pthread_mutex_unlock");
1500 /* If we have an unfinished count, let C-g or backspace abort. */
1501 if (view->count && --view->count) {
1502 cbreak();
1503 nodelay(view->window, TRUE);
1504 ch = wgetch(view->window);
1505 if (ch == CTRL('g') || ch == KEY_BACKSPACE)
1506 view->count = 0;
1507 else
1508 ch = view->ch;
1509 } else {
1510 ch = wgetch(view->window);
1511 if (ch >= '1' && ch <= '9')
1512 view->ch = ch = get_compound_key(view, ch);
1513 }
1514 if (view->hiline && ch != ERR && ch != 0)
1515 view->hiline = 0; /* key pressed, clear line highlight */
1516 nodelay(view->window, TRUE);
1517 errcode = pthread_mutex_lock(&tog_mutex);
1518 if (errcode)
1519 return got_error_set_errno(errcode, "pthread_mutex_lock");
1520
1521 if (tog_sigwinch_received || tog_sigcont_received) {
1522 tog_resizeterm();
1523 tog_sigwinch_received = 0;
1524 tog_sigcont_received = 0;
1525 TAILQ_FOREACH(v, views, entry) {
1526 err = view_resize(v);
1527 if (err)
1528 return err;
1529 err = v->input(new, v, KEY_RESIZE);
1530 if (err)
1531 return err;
1532 if (v->child) {
1533 err = view_resize(v->child);
1534 if (err)
1535 return err;
1536 err = v->child->input(new, v->child,
1537 KEY_RESIZE);
1538 if (err)
1539 return err;
1540 if (v->child->resized_x || v->child->resized_y) {
1541 err = view_resize_split(v, 0);
1542 if (err)
1543 return err;
1544 }
1545 }
1546 }
1547 }
1548
1549 switch (ch) {
1550 case '?':
1551 case 'H':
1552 case KEY_F(1):
1553 if (view->type == TOG_VIEW_HELP)
1554 err = view->reset(view);
1555 else
1556 err = view_request_new(new, view, TOG_VIEW_HELP);
1557 break;
1558 case '\t':
1559 view->count = 0;
1560 if (view->child) {
1561 view->focussed = 0;
1562 view->child->focussed = 1;
1563 view->focus_child = 1;
1564 } else if (view->parent) {
1565 view->focussed = 0;
1566 view->parent->focussed = 1;
1567 view->parent->focus_child = 0;
1568 if (!view_is_splitscreen(view)) {
1569 if (view->parent->resize) {
1570 err = view->parent->resize(view->parent,
1571 0);
1572 if (err)
1573 return err;
1574 }
1575 offset_selection_up(view->parent);
1576 err = view_fullscreen(view->parent);
1577 if (err)
1578 return err;
1579 }
1580 }
1581 break;
1582 case 'q':
1583 if (view->parent && view->mode == TOG_VIEW_SPLIT_HRZN) {
1584 if (view->parent->resize) {
1585 /* might need more commits to fill fullscreen */
1586 err = view->parent->resize(view->parent, 0);
1587 if (err)
1588 break;
1589 }
1590 offset_selection_up(view->parent);
1591 }
1592 err = view->input(new, view, ch);
1593 view->dying = 1;
1594 break;
1595 case 'Q':
1596 *done = 1;
1597 break;
1598 case 'F':
1599 view->count = 0;
1600 if (view_is_parent_view(view)) {
1601 if (view->child == NULL)
1602 break;
1603 if (view_is_splitscreen(view->child)) {
1604 view->focussed = 0;
1605 view->child->focussed = 1;
1606 err = view_fullscreen(view->child);
1607 } else {
1608 err = view_splitscreen(view->child);
1609 if (!err)
1610 err = view_resize_split(view, 0);
1611 }
1612 if (err)
1613 break;
1614 err = view->child->input(new, view->child,
1615 KEY_RESIZE);
1616 } else {
1617 if (view_is_splitscreen(view)) {
1618 view->parent->focussed = 0;
1619 view->focussed = 1;
1620 err = view_fullscreen(view);
1621 } else {
1622 err = view_splitscreen(view);
1623 if (!err && view->mode != TOG_VIEW_SPLIT_HRZN)
1624 err = view_resize(view->parent);
1625 if (!err)
1626 err = view_resize_split(view, 0);
1627 }
1628 if (err)
1629 break;
1630 err = view->input(new, view, KEY_RESIZE);
1631 }
1632 if (err)
1633 break;
1634 if (view->resize) {
1635 err = view->resize(view, 0);
1636 if (err)
1637 break;
1638 }
1639 if (view->parent)
1640 err = offset_selection_down(view->parent);
1641 if (!err)
1642 err = offset_selection_down(view);
1643 break;
1644 case 'S':
1645 view->count = 0;
1646 err = switch_split(view);
1647 break;
1648 case '-':
1649 err = view_resize_split(view, -1);
1650 break;
1651 case '+':
1652 err = view_resize_split(view, 1);
1653 break;
1654 case KEY_RESIZE:
1655 break;
1656 case '/':
1657 view->count = 0;
1658 if (view->search_start)
1659 view_search_start(view);
1660 else
1661 err = view->input(new, view, ch);
1662 break;
1663 case 'N':
1664 case 'n':
1665 if (view->search_started && view->search_next) {
1666 view->searching = (ch == 'n' ?
1667 TOG_SEARCH_FORWARD : TOG_SEARCH_BACKWARD);
1668 view->search_next_done = 0;
1669 view->search_next(view);
1670 } else
1671 err = view->input(new, view, ch);
1672 break;
1673 case 'A':
1674 if (tog_diff_algo == GOT_DIFF_ALGORITHM_MYERS)
1675 tog_diff_algo = GOT_DIFF_ALGORITHM_PATIENCE;
1676 else
1677 tog_diff_algo = GOT_DIFF_ALGORITHM_MYERS;
1678 TAILQ_FOREACH(v, views, entry) {
1679 if (v->reset) {
1680 err = v->reset(v);
1681 if (err)
1682 return err;
1683 }
1684 if (v->child && v->child->reset) {
1685 err = v->child->reset(v->child);
1686 if (err)
1687 return err;
1688 }
1689 }
1690 break;
1691 default:
1692 err = view->input(new, view, ch);
1693 break;
1694 }
1695
1696 return err;
1697 }
1698
1699 static int
1700 view_needs_focus_indication(struct tog_view *view)
1701 {
1702 if (view_is_parent_view(view)) {
1703 if (view->child == NULL || view->child->focussed)
1704 return 0;
1705 if (!view_is_splitscreen(view->child))
1706 return 0;
1707 } else if (!view_is_splitscreen(view))
1708 return 0;
1709
1710 return view->focussed;
1711 }
1712
1713 static const struct got_error *
1714 view_loop(struct tog_view *view)
1715 {
1716 const struct got_error *err = NULL;
1717 struct tog_view_list_head views;
1718 struct tog_view *new_view;
1719 char *mode;
1720 int fast_refresh = 10;
1721 int done = 0, errcode;
1722
1723 mode = getenv("TOG_VIEW_SPLIT_MODE");
1724 if (!mode || !(*mode == 'h' || *mode == 'H'))
1725 view->mode = TOG_VIEW_SPLIT_VERT;
1726 else
1727 view->mode = TOG_VIEW_SPLIT_HRZN;
1728
1729 errcode = pthread_mutex_lock(&tog_mutex);
1730 if (errcode)
1731 return got_error_set_errno(errcode, "pthread_mutex_lock");
1732
1733 TAILQ_INIT(&views);
1734 TAILQ_INSERT_HEAD(&views, view, entry);
1735
1736 view->focussed = 1;
1737 err = view->show(view);
1738 if (err)
1739 return err;
1740 update_panels();
1741 doupdate();
1742 while (!TAILQ_EMPTY(&views) && !done && !tog_thread_error &&
1743 !tog_fatal_signal_received()) {
1744 /* Refresh fast during initialization, then become slower. */
1745 if (fast_refresh && fast_refresh-- == 0)
1746 halfdelay(10); /* switch to once per second */
1747
1748 err = view_input(&new_view, &done, view, &views);
1749 if (err)
1750 break;
1751 if (view->dying) {
1752 struct tog_view *v, *prev = NULL;
1753
1754 if (view_is_parent_view(view))
1755 prev = TAILQ_PREV(view, tog_view_list_head,
1756 entry);
1757 else if (view->parent)
1758 prev = view->parent;
1759
1760 if (view->parent) {
1761 view->parent->child = NULL;
1762 view->parent->focus_child = 0;
1763 /* Restore fullscreen line height. */
1764 view->parent->nlines = view->parent->lines;
1765 err = view_resize(view->parent);
1766 if (err)
1767 break;
1768 /* Make resized splits persist. */
1769 view_transfer_size(view->parent, view);
1770 } else
1771 TAILQ_REMOVE(&views, view, entry);
1772
1773 err = view_close(view);
1774 if (err)
1775 goto done;
1776
1777 view = NULL;
1778 TAILQ_FOREACH(v, &views, entry) {
1779 if (v->focussed)
1780 break;
1781 }
1782 if (view == NULL && new_view == NULL) {
1783 /* No view has focus. Try to pick one. */
1784 if (prev)
1785 view = prev;
1786 else if (!TAILQ_EMPTY(&views)) {
1787 view = TAILQ_LAST(&views,
1788 tog_view_list_head);
1789 }
1790 if (view) {
1791 if (view->focus_child) {
1792 view->child->focussed = 1;
1793 view = view->child;
1794 } else
1795 view->focussed = 1;
1796 }
1797 }
1798 }
1799 if (new_view) {
1800 struct tog_view *v, *t;
1801 /* Only allow one parent view per type. */
1802 TAILQ_FOREACH_SAFE(v, &views, entry, t) {
1803 if (v->type != new_view->type)
1804 continue;
1805 TAILQ_REMOVE(&views, v, entry);
1806 err = view_close(v);
1807 if (err)
1808 goto done;
1809 break;
1810 }
1811 TAILQ_INSERT_TAIL(&views, new_view, entry);
1812 view = new_view;
1813 }
1814 if (view) {
1815 if (view_is_parent_view(view)) {
1816 if (view->child && view->child->focussed)
1817 view = view->child;
1818 } else {
1819 if (view->parent && view->parent->focussed)
1820 view = view->parent;
1821 }
1822 show_panel(view->panel);
1823 if (view->child && view_is_splitscreen(view->child))
1824 show_panel(view->child->panel);
1825 if (view->parent && view_is_splitscreen(view)) {
1826 err = view->parent->show(view->parent);
1827 if (err)
1828 goto done;
1829 }
1830 err = view->show(view);
1831 if (err)
1832 goto done;
1833 if (view->child) {
1834 err = view->child->show(view->child);
1835 if (err)
1836 goto done;
1837 }
1838 update_panels();
1839 doupdate();
1840 }
1841 }
1842 done:
1843 while (!TAILQ_EMPTY(&views)) {
1844 const struct got_error *close_err;
1845 view = TAILQ_FIRST(&views);
1846 TAILQ_REMOVE(&views, view, entry);
1847 close_err = view_close(view);
1848 if (close_err && err == NULL)
1849 err = close_err;
1850 }
1851
1852 errcode = pthread_mutex_unlock(&tog_mutex);
1853 if (errcode && err == NULL)
1854 err = got_error_set_errno(errcode, "pthread_mutex_unlock");
1855
1856 return err;
1857 }
1858
1859 __dead static void
1860 usage_log(void)
1861 {
1862 endwin();
1863 fprintf(stderr,
1864 "usage: %s log [-b] [-c commit] [-r repository-path] [path]\n",
1865 getprogname());
1866 exit(1);
1867 }
1868
1869 /* Create newly allocated wide-character string equivalent to a byte string. */
1870 static const struct got_error *
1871 mbs2ws(wchar_t **ws, size_t *wlen, const char *s)
1872 {
1873 char *vis = NULL;
1874 const struct got_error *err = NULL;
1875
1876 *ws = NULL;
1877 *wlen = mbstowcs(NULL, s, 0);
1878 if (*wlen == (size_t)-1) {
1879 int vislen;
1880 if (errno != EILSEQ)
1881 return got_error_from_errno("mbstowcs");
1882
1883 /* byte string invalid in current encoding; try to "fix" it */
1884 err = got_mbsavis(&vis, &vislen, s);
1885 if (err)
1886 return err;
1887 *wlen = mbstowcs(NULL, vis, 0);
1888 if (*wlen == (size_t)-1) {
1889 err = got_error_from_errno("mbstowcs"); /* give up */
1890 goto done;
1891 }
1892 }
1893
1894 *ws = calloc(*wlen + 1, sizeof(**ws));
1895 if (*ws == NULL) {
1896 err = got_error_from_errno("calloc");
1897 goto done;
1898 }
1899
1900 if (mbstowcs(*ws, vis ? vis : s, *wlen) != *wlen)
1901 err = got_error_from_errno("mbstowcs");
1902 done:
1903 free(vis);
1904 if (err) {
1905 free(*ws);
1906 *ws = NULL;
1907 *wlen = 0;
1908 }
1909 return err;
1910 }
1911
1912 static const struct got_error *
1913 expand_tab(char **ptr, const char *src)
1914 {
1915 char *dst;
1916 size_t len, n, idx = 0, sz = 0;
1917
1918 *ptr = NULL;
1919 n = len = strlen(src);
1920 dst = malloc(n + 1);
1921 if (dst == NULL)
1922 return got_error_from_errno("malloc");
1923
1924 while (idx < len && src[idx]) {
1925 const char c = src[idx];
1926
1927 if (c == '\t') {
1928 size_t nb = TABSIZE - sz % TABSIZE;
1929 char *p;
1930
1931 p = realloc(dst, n + nb);
1932 if (p == NULL) {
1933 free(dst);
1934 return got_error_from_errno("realloc");
1935
1936 }
1937 dst = p;
1938 n += nb;
1939 memset(dst + sz, ' ', nb);
1940 sz += nb;
1941 } else
1942 dst[sz++] = src[idx];
1943 ++idx;
1944 }
1945
1946 dst[sz] = '\0';
1947 *ptr = dst;
1948 return NULL;
1949 }
1950
1951 /*
1952 * Advance at most n columns from wline starting at offset off.
1953 * Return the index to the first character after the span operation.
1954 * Return the combined column width of all spanned wide character in
1955 * *rcol.
1956 */
1957 static int
1958 span_wline(int *rcol, int off, wchar_t *wline, int n, int col_tab_align)
1959 {
1960 int width, i, cols = 0;
1961
1962 if (n == 0) {
1963 *rcol = cols;
1964 return off;
1965 }
1966
1967 for (i = off; wline[i] != L'\0'; ++i) {
1968 if (wline[i] == L'\t')
1969 width = TABSIZE - ((cols + col_tab_align) % TABSIZE);
1970 else
1971 width = wcwidth(wline[i]);
1972
1973 if (width == -1) {
1974 width = 1;
1975 wline[i] = L'.';
1976 }
1977
1978 if (cols + width > n)
1979 break;
1980 cols += width;
1981 }
1982
1983 *rcol = cols;
1984 return i;
1985 }
1986
1987 /*
1988 * Format a line for display, ensuring that it won't overflow a width limit.
1989 * With scrolling, the width returned refers to the scrolled version of the
1990 * line, which starts at (*wlinep)[*scrollxp]. The caller must free *wlinep.
1991 */
1992 static const struct got_error *
1993 format_line(wchar_t **wlinep, int *widthp, int *scrollxp,
1994 const char *line, int nscroll, int wlimit, int col_tab_align, int expand)
1995 {
1996 const struct got_error *err = NULL;
1997 int cols;
1998 wchar_t *wline = NULL;
1999 char *exstr = NULL;
2000 size_t wlen;
2001 int i, scrollx;
2002
2003 *wlinep = NULL;
2004 *widthp = 0;
2005
2006 if (expand) {
2007 err = expand_tab(&exstr, line);
2008 if (err)
2009 return err;
2010 }
2011
2012 err = mbs2ws(&wline, &wlen, expand ? exstr : line);
2013 free(exstr);
2014 if (err)
2015 return err;
2016
2017 scrollx = span_wline(&cols, 0, wline, nscroll, col_tab_align);
2018
2019 if (wlen > 0 && wline[wlen - 1] == L'\n') {
2020 wline[wlen - 1] = L'\0';
2021 wlen--;
2022 }
2023 if (wlen > 0 && wline[wlen - 1] == L'\r') {
2024 wline[wlen - 1] = L'\0';
2025 wlen--;
2026 }
2027
2028 i = span_wline(&cols, scrollx, wline, wlimit, col_tab_align);
2029 wline[i] = L'\0';
2030
2031 if (widthp)
2032 *widthp = cols;
2033 if (scrollxp)
2034 *scrollxp = scrollx;
2035 if (err)
2036 free(wline);
2037 else
2038 *wlinep = wline;
2039 return err;
2040 }
2041
2042 static const struct got_error*
2043 build_refs_str(char **refs_str, struct got_reflist_head *refs,
2044 struct got_object_id *id, struct got_repository *repo)
2045 {
2046 static const struct got_error *err = NULL;
2047 struct got_reflist_entry *re;
2048 char *s;
2049 const char *name;
2050
2051 *refs_str = NULL;
2052
2053 TAILQ_FOREACH(re, refs, entry) {
2054 struct got_tag_object *tag = NULL;
2055 struct got_object_id *ref_id;
2056 int cmp;
2057
2058 name = got_ref_get_name(re->ref);
2059 if (strcmp(name, GOT_REF_HEAD) == 0)
2060 continue;
2061 if (strncmp(name, "refs/", 5) == 0)
2062 name += 5;
2063 if (strncmp(name, "got/", 4) == 0 &&
2064 strncmp(name, "got/backup/", 11) != 0)
2065 continue;
2066 if (strncmp(name, "heads/", 6) == 0)
2067 name += 6;
2068 if (strncmp(name, "remotes/", 8) == 0) {
2069 name += 8;
2070 s = strstr(name, "/" GOT_REF_HEAD);
2071 if (s != NULL && s[strlen(s)] == '\0')
2072 continue;
2073 }
2074 err = got_ref_resolve(&ref_id, repo, re->ref);
2075 if (err)
2076 break;
2077 if (strncmp(name, "tags/", 5) == 0) {
2078 err = got_object_open_as_tag(&tag, repo, ref_id);
2079 if (err) {
2080 if (err->code != GOT_ERR_OBJ_TYPE) {
2081 free(ref_id);
2082 break;
2083 }
2084 /* Ref points at something other than a tag. */
2085 err = NULL;
2086 tag = NULL;
2087 }
2088 }
2089 cmp = got_object_id_cmp(tag ?
2090 got_object_tag_get_object_id(tag) : ref_id, id);
2091 free(ref_id);
2092 if (tag)
2093 got_object_tag_close(tag);
2094 if (cmp != 0)
2095 continue;
2096 s = *refs_str;
2097 if (asprintf(refs_str, "%s%s%s", s ? s : "",
2098 s ? ", " : "", name) == -1) {
2099 err = got_error_from_errno("asprintf");
2100 free(s);
2101 *refs_str = NULL;
2102 break;
2103 }
2104 free(s);
2105 }
2106
2107 return err;
2108 }
2109
2110 static const struct got_error *
2111 format_author(wchar_t **wauthor, int *author_width, char *author, int limit,
2112 int col_tab_align)
2113 {
2114 char *smallerthan;
2115
2116 smallerthan = strchr(author, '<');
2117 if (smallerthan && smallerthan[1] != '\0')
2118 author = smallerthan + 1;
2119 author[strcspn(author, "@>")] = '\0';
2120 return format_line(wauthor, author_width, NULL, author, 0, limit,
2121 col_tab_align, 0);
2122 }
2123
2124 static const struct got_error *
2125 draw_commit(struct tog_view *view, struct got_commit_object *commit,
2126 struct got_object_id *id, const size_t date_display_cols,
2127 int author_display_cols)
2128 {
2129 struct tog_log_view_state *s = &view->state.log;
2130 const struct got_error *err = NULL;
2131 char datebuf[12]; /* YYYY-MM-DD + SPACE + NUL */
2132 char *logmsg0 = NULL, *logmsg = NULL;
2133 char *author = NULL;
2134 wchar_t *wlogmsg = NULL, *wauthor = NULL;
2135 int author_width, logmsg_width;
2136 char *newline, *line = NULL;
2137 int col, limit, scrollx;
2138 const int avail = view->ncols;
2139 struct tm tm;
2140 time_t committer_time;
2141 struct tog_color *tc;
2142
2143 committer_time = got_object_commit_get_committer_time(commit);
2144 if (gmtime_r(&committer_time, &tm) == NULL)
2145 return got_error_from_errno("gmtime_r");
2146 if (strftime(datebuf, sizeof(datebuf), "%G-%m-%d ", &tm) == 0)
2147 return got_error(GOT_ERR_NO_SPACE);
2148
2149 if (avail <= date_display_cols)
2150 limit = MIN(sizeof(datebuf) - 1, avail);
2151 else
2152 limit = MIN(date_display_cols, sizeof(datebuf) - 1);
2153 tc = get_color(&s->colors, TOG_COLOR_DATE);
2154 if (tc)
2155 wattr_on(view->window,
2156 COLOR_PAIR(tc->colorpair), NULL);
2157 waddnstr(view->window, datebuf, limit);
2158 if (tc)
2159 wattr_off(view->window,
2160 COLOR_PAIR(tc->colorpair), NULL);
2161 col = limit;
2162 if (col > avail)
2163 goto done;
2164
2165 if (avail >= 120) {
2166 char *id_str;
2167 err = got_object_id_str(&id_str, id);
2168 if (err)
2169 goto done;
2170 tc = get_color(&s->colors, TOG_COLOR_COMMIT);
2171 if (tc)
2172 wattr_on(view->window,
2173 COLOR_PAIR(tc->colorpair), NULL);
2174 wprintw(view->window, "%.8s ", id_str);
2175 if (tc)
2176 wattr_off(view->window,
2177 COLOR_PAIR(tc->colorpair), NULL);
2178 free(id_str);
2179 col += 9;
2180 if (col > avail)
2181 goto done;
2182 }
2183
2184 if (s->use_committer)
2185 author = strdup(got_object_commit_get_committer(commit));
2186 else
2187 author = strdup(got_object_commit_get_author(commit));
2188 if (author == NULL) {
2189 err = got_error_from_errno("strdup");
2190 goto done;
2191 }
2192 err = format_author(&wauthor, &author_width, author, avail - col, col);
2193 if (err)
2194 goto done;
2195 tc = get_color(&s->colors, TOG_COLOR_AUTHOR);
2196 if (tc)
2197 wattr_on(view->window,
2198 COLOR_PAIR(tc->colorpair), NULL);
2199 waddwstr(view->window, wauthor);
2200 col += author_width;
2201 while (col < avail && author_width < author_display_cols + 2) {
2202 waddch(view->window, ' ');
2203 col++;
2204 author_width++;
2205 }
2206 if (tc)
2207 wattr_off(view->window,
2208 COLOR_PAIR(tc->colorpair), NULL);
2209 if (col > avail)
2210 goto done;
2211
2212 err = got_object_commit_get_logmsg(&logmsg0, commit);
2213 if (err)
2214 goto done;
2215 logmsg = logmsg0;
2216 while (*logmsg == '\n')
2217 logmsg++;
2218 newline = strchr(logmsg, '\n');
2219 if (newline)
2220 *newline = '\0';
2221 limit = avail - col;
2222 if (view->child && !view_is_hsplit_top(view) && limit > 0)
2223 limit--; /* for the border */
2224 err = format_line(&wlogmsg, &logmsg_width, &scrollx, logmsg, view->x,
2225 limit, col, 1);
2226 if (err)
2227 goto done;
2228 waddwstr(view->window, &wlogmsg[scrollx]);
2229 col += MAX(logmsg_width, 0);
2230 while (col < avail) {
2231 waddch(view->window, ' ');
2232 col++;
2233 }
2234 done:
2235 free(logmsg0);
2236 free(wlogmsg);
2237 free(author);
2238 free(wauthor);
2239 free(line);
2240 return err;
2241 }
2242
2243 static struct commit_queue_entry *
2244 alloc_commit_queue_entry(struct got_commit_object *commit,
2245 struct got_object_id *id)
2246 {
2247 struct commit_queue_entry *entry;
2248 struct got_object_id *dup;
2249
2250 entry = calloc(1, sizeof(*entry));
2251 if (entry == NULL)
2252 return NULL;
2253
2254 dup = got_object_id_dup(id);
2255 if (dup == NULL) {
2256 free(entry);
2257 return NULL;
2258 }
2259
2260 entry->id = dup;
2261 entry->commit = commit;
2262 return entry;
2263 }
2264
2265 static void
2266 pop_commit(struct commit_queue *commits)
2267 {
2268 struct commit_queue_entry *entry;
2269
2270 entry = TAILQ_FIRST(&commits->head);
2271 TAILQ_REMOVE(&commits->head, entry, entry);
2272 got_object_commit_close(entry->commit);
2273 commits->ncommits--;
2274 free(entry->id);
2275 free(entry);
2276 }
2277
2278 static void
2279 free_commits(struct commit_queue *commits)
2280 {
2281 while (!TAILQ_EMPTY(&commits->head))
2282 pop_commit(commits);
2283 }
2284
2285 static const struct got_error *
2286 match_commit(int *have_match, struct got_object_id *id,
2287 struct got_commit_object *commit, regex_t *regex)
2288 {
2289 const struct got_error *err = NULL;
2290 regmatch_t regmatch;
2291 char *id_str = NULL, *logmsg = NULL;
2292
2293 *have_match = 0;
2294
2295 err = got_object_id_str(&id_str, id);
2296 if (err)
2297 return err;
2298
2299 err = got_object_commit_get_logmsg(&logmsg, commit);
2300 if (err)
2301 goto done;
2302
2303 if (regexec(regex, got_object_commit_get_author(commit), 1,
2304 &regmatch, 0) == 0 ||
2305 regexec(regex, got_object_commit_get_committer(commit), 1,
2306 &regmatch, 0) == 0 ||
2307 regexec(regex, id_str, 1, &regmatch, 0) == 0 ||
2308 regexec(regex, logmsg, 1, &regmatch, 0) == 0)
2309 *have_match = 1;
2310 done:
2311 free(id_str);
2312 free(logmsg);
2313 return err;
2314 }
2315
2316 static const struct got_error *
2317 queue_commits(struct tog_log_thread_args *a)
2318 {
2319 const struct got_error *err = NULL;
2320
2321 /*
2322 * We keep all commits open throughout the lifetime of the log
2323 * view in order to avoid having to re-fetch commits from disk
2324 * while updating the display.
2325 */
2326 do {
2327 struct got_object_id id;
2328 struct got_commit_object *commit;
2329 struct commit_queue_entry *entry;
2330 int limit_match = 0;
2331 int errcode;
2332
2333 err = got_commit_graph_iter_next(&id, a->graph, a->repo,
2334 NULL, NULL);
2335 if (err)
2336 break;
2337
2338 err = got_object_open_as_commit(&commit, a->repo, &id);
2339 if (err)
2340 break;
2341 entry = alloc_commit_queue_entry(commit, &id);
2342 if (entry == NULL) {
2343 err = got_error_from_errno("alloc_commit_queue_entry");
2344 break;
2345 }
2346
2347 errcode = pthread_mutex_lock(&tog_mutex);
2348 if (errcode) {
2349 err = got_error_set_errno(errcode,
2350 "pthread_mutex_lock");
2351 break;
2352 }
2353
2354 entry->idx = a->real_commits->ncommits;
2355 TAILQ_INSERT_TAIL(&a->real_commits->head, entry, entry);
2356 a->real_commits->ncommits++;
2357
2358 if (*a->limiting) {
2359 err = match_commit(&limit_match, &id, commit,
2360 a->limit_regex);
2361 if (err)
2362 break;
2363
2364 if (limit_match) {
2365 struct commit_queue_entry *matched;
2366
2367 matched = alloc_commit_queue_entry(
2368 entry->commit, entry->id);
2369 if (matched == NULL) {
2370 err = got_error_from_errno(
2371 "alloc_commit_queue_entry");
2372 break;
2373 }
2374 matched->commit = entry->commit;
2375 got_object_commit_retain(entry->commit);
2376
2377 matched->idx = a->limit_commits->ncommits;
2378 TAILQ_INSERT_TAIL(&a->limit_commits->head,
2379 matched, entry);
2380 a->limit_commits->ncommits++;
2381 }
2382
2383 /*
2384 * This is how we signal log_thread() that we
2385 * have found a match, and that it should be
2386 * counted as a new entry for the view.
2387 */
2388 a->limit_match = limit_match;
2389 }
2390
2391 if (*a->searching == TOG_SEARCH_FORWARD &&
2392 !*a->search_next_done) {
2393 int have_match;
2394 err = match_commit(&have_match, &id, commit, a->regex);
2395 if (err)
2396 break;
2397
2398 if (*a->limiting) {
2399 if (limit_match && have_match)
2400 *a->search_next_done =
2401 TOG_SEARCH_HAVE_MORE;
2402 } else if (have_match)
2403 *a->search_next_done = TOG_SEARCH_HAVE_MORE;
2404 }
2405
2406 errcode = pthread_mutex_unlock(&tog_mutex);
2407 if (errcode && err == NULL)
2408 err = got_error_set_errno(errcode,
2409 "pthread_mutex_unlock");
2410 if (err)
2411 break;
2412 } while (*a->searching == TOG_SEARCH_FORWARD && !*a->search_next_done);
2413
2414 return err;
2415 }
2416
2417 static void
2418 select_commit(struct tog_log_view_state *s)
2419 {
2420 struct commit_queue_entry *entry;
2421 int ncommits = 0;
2422
2423 entry = s->first_displayed_entry;
2424 while (entry) {
2425 if (ncommits == s->selected) {
2426 s->selected_entry = entry;
2427 break;
2428 }
2429 entry = TAILQ_NEXT(entry, entry);
2430 ncommits++;
2431 }
2432 }
2433
2434 static const struct got_error *
2435 draw_commits(struct tog_view *view)
2436 {
2437 const struct got_error *err = NULL;
2438 struct tog_log_view_state *s = &view->state.log;
2439 struct commit_queue_entry *entry = s->selected_entry;
2440 int limit = view->nlines;
2441 int width;
2442 int ncommits, author_cols = 4;
2443 char *id_str = NULL, *header = NULL, *ncommits_str = NULL;
2444 char *refs_str = NULL;
2445 wchar_t *wline;
2446 struct tog_color *tc;
2447 static const size_t date_display_cols = 12;
2448
2449 if (view_is_hsplit_top(view))
2450 --limit; /* account for border */
2451
2452 if (s->selected_entry &&
2453 !(view->searching && view->search_next_done == 0)) {
2454 struct got_reflist_head *refs;
2455 err = got_object_id_str(&id_str, s->selected_entry->id);
2456 if (err)
2457 return err;
2458 refs = got_reflist_object_id_map_lookup(tog_refs_idmap,
2459 s->selected_entry->id);
2460 if (refs) {
2461 err = build_refs_str(&refs_str, refs,
2462 s->selected_entry->id, s->repo);
2463 if (err)
2464 goto done;
2465 }
2466 }
2467
2468 if (s->thread_args.commits_needed == 0)
2469 halfdelay(10); /* disable fast refresh */
2470
2471 if (s->thread_args.commits_needed > 0 || s->thread_args.load_all) {
2472 if (asprintf(&ncommits_str, " [%d/%d] %s",
2473 entry ? entry->idx + 1 : 0, s->commits->ncommits,
2474 (view->searching && !view->search_next_done) ?
2475 "searching..." : "loading...") == -1) {
2476 err = got_error_from_errno("asprintf");
2477 goto done;
2478 }
2479 } else {
2480 const char *search_str = NULL;
2481 const char *limit_str = NULL;
2482
2483 if (view->searching) {
2484 if (view->search_next_done == TOG_SEARCH_NO_MORE)
2485 search_str = "no more matches";
2486 else if (view->search_next_done == TOG_SEARCH_HAVE_NONE)
2487 search_str = "no matches found";
2488 else if (!view->search_next_done)
2489 search_str = "searching...";
2490 }
2491
2492 if (s->limit_view && s->commits->ncommits == 0)
2493 limit_str = "no matches found";
2494
2495 if (asprintf(&ncommits_str, " [%d/%d] %s %s",
2496 entry ? entry->idx + 1 : 0, s->commits->ncommits,
2497 search_str ? search_str : (refs_str ? refs_str : ""),
2498 limit_str ? limit_str : "") == -1) {
2499 err = got_error_from_errno("asprintf");
2500 goto done;
2501 }
2502 }
2503
2504 if (s->in_repo_path && strcmp(s->in_repo_path, "/") != 0) {
2505 if (asprintf(&header, "commit %s %s%s", id_str ? id_str :
2506 "........................................",
2507 s->in_repo_path, ncommits_str) == -1) {
2508 err = got_error_from_errno("asprintf");
2509 header = NULL;
2510 goto done;
2511 }
2512 } else if (asprintf(&header, "commit %s%s",
2513 id_str ? id_str : "........................................",
2514 ncommits_str) == -1) {
2515 err = got_error_from_errno("asprintf");
2516 header = NULL;
2517 goto done;
2518 }
2519 err = format_line(&wline, &width, NULL, header, 0, view->ncols, 0, 0);
2520 if (err)
2521 goto done;
2522
2523 werase(view->window);
2524
2525 if (view_needs_focus_indication(view))
2526 wstandout(view->window);
2527 tc = get_color(&s->colors, TOG_COLOR_COMMIT);
2528 if (tc)
2529 wattr_on(view->window, COLOR_PAIR(tc->colorpair), NULL);
2530 waddwstr(view->window, wline);
2531 while (width < view->ncols) {
2532 waddch(view->window, ' ');
2533 width++;
2534 }
2535 if (tc)
2536 wattr_off(view->window, COLOR_PAIR(tc->colorpair), NULL);
2537 if (view_needs_focus_indication(view))
2538 wstandend(view->window);
2539 free(wline);
2540 if (limit <= 1)
2541 goto done;
2542
2543 /* Grow author column size if necessary, and set view->maxx. */
2544 entry = s->first_displayed_entry;
2545 ncommits = 0;
2546 view->maxx = 0;
2547 while (entry) {
2548 struct got_commit_object *c = entry->commit;
2549 char *author, *eol, *msg, *msg0;
2550 wchar_t *wauthor, *wmsg;
2551 int width;
2552 if (ncommits >= limit - 1)
2553 break;
2554 if (s->use_committer)
2555 author = strdup(got_object_commit_get_committer(c));
2556 else
2557 author = strdup(got_object_commit_get_author(c));
2558 if (author == NULL) {
2559 err = got_error_from_errno("strdup");
2560 goto done;
2561 }
2562 err = format_author(&wauthor, &width, author, COLS,
2563 date_display_cols);
2564 if (author_cols < width)
2565 author_cols = width;
2566 free(wauthor);
2567 free(author);
2568 if (err)
2569 goto done;
2570 err = got_object_commit_get_logmsg(&msg0, c);
2571 if (err)
2572 goto done;
2573 msg = msg0;
2574 while (*msg == '\n')
2575 ++msg;
2576 if ((eol = strchr(msg, '\n')))
2577 *eol = '\0';
2578 err = format_line(&wmsg, &width, NULL, msg, 0, INT_MAX,
2579 date_display_cols + author_cols, 0);
2580 if (err)
2581 goto done;
2582 view->maxx = MAX(view->maxx, width);
2583 free(msg0);
2584 free(wmsg);
2585 ncommits++;
2586 entry = TAILQ_NEXT(entry, entry);
2587 }
2588
2589 entry = s->first_displayed_entry;
2590 s->last_displayed_entry = s->first_displayed_entry;
2591 ncommits = 0;
2592 while (entry) {
2593 if (ncommits >= limit - 1)
2594 break;
2595 if (ncommits == s->selected)
2596 wstandout(view->window);
2597 err = draw_commit(view, entry->commit, entry->id,
2598 date_display_cols, author_cols);
2599 if (ncommits == s->selected)
2600 wstandend(view->window);
2601 if (err)
2602 goto done;
2603 ncommits++;
2604 s->last_displayed_entry = entry;
2605 entry = TAILQ_NEXT(entry, entry);
2606 }
2607
2608 view_border(view);
2609 done:
2610 free(id_str);
2611 free(refs_str);
2612 free(ncommits_str);
2613 free(header);
2614 return err;
2615 }
2616
2617 static void
2618 log_scroll_up(struct tog_log_view_state *s, int maxscroll)
2619 {
2620 struct commit_queue_entry *entry;
2621 int nscrolled = 0;
2622
2623 entry = TAILQ_FIRST(&s->commits->head);
2624 if (s->first_displayed_entry == entry)
2625 return;
2626
2627 entry = s->first_displayed_entry;
2628 while (entry && nscrolled < maxscroll) {
2629 entry = TAILQ_PREV(entry, commit_queue_head, entry);
2630 if (entry) {
2631 s->first_displayed_entry = entry;
2632 nscrolled++;
2633 }
2634 }
2635 }
2636
2637 static const struct got_error *
2638 trigger_log_thread(struct tog_view *view, int wait)
2639 {
2640 struct tog_log_thread_args *ta = &view->state.log.thread_args;
2641 int errcode;
2642
2643 halfdelay(1); /* fast refresh while loading commits */
2644
2645 while (!ta->log_complete && !tog_thread_error &&
2646 (ta->commits_needed > 0 || ta->load_all)) {
2647 /* Wake the log thread. */
2648 errcode = pthread_cond_signal(&ta->need_commits);
2649 if (errcode)
2650 return got_error_set_errno(errcode,
2651 "pthread_cond_signal");
2652
2653 /*
2654 * The mutex will be released while the view loop waits
2655 * in wgetch(), at which time the log thread will run.
2656 */
2657 if (!wait)
2658 break;
2659
2660 /* Display progress update in log view. */
2661 show_log_view(view);
2662 update_panels();
2663 doupdate();
2664
2665 /* Wait right here while next commit is being loaded. */
2666 errcode = pthread_cond_wait(&ta->commit_loaded, &tog_mutex);
2667 if (errcode)
2668 return got_error_set_errno(errcode,
2669 "pthread_cond_wait");
2670
2671 /* Display progress update in log view. */
2672 show_log_view(view);
2673 update_panels();
2674 doupdate();
2675 }
2676
2677 return NULL;
2678 }
2679
2680 static const struct got_error *
2681 request_log_commits(struct tog_view *view)
2682 {
2683 struct tog_log_view_state *state = &view->state.log;
2684 const struct got_error *err = NULL;
2685
2686 if (state->thread_args.log_complete)
2687 return NULL;
2688
2689 state->thread_args.commits_needed += view->nscrolled;
2690 err = trigger_log_thread(view, 1);
2691 view->nscrolled = 0;
2692
2693 return err;
2694 }
2695
2696 static const struct got_error *
2697 log_scroll_down(struct tog_view *view, int maxscroll)
2698 {
2699 struct tog_log_view_state *s = &view->state.log;
2700 const struct got_error *err = NULL;
2701 struct commit_queue_entry *pentry;
2702 int nscrolled = 0, ncommits_needed;
2703
2704 if (s->last_displayed_entry == NULL)
2705 return NULL;
2706
2707 ncommits_needed = s->last_displayed_entry->idx + 1 + maxscroll;
2708 if (s->commits->ncommits < ncommits_needed &&
2709 !s->thread_args.log_complete) {
2710 /*
2711 * Ask the log thread for required amount of commits.
2712 */
2713 s->thread_args.commits_needed +=
2714 ncommits_needed - s->commits->ncommits;
2715 err = trigger_log_thread(view, 1);
2716 if (err)
2717 return err;
2718 }
2719
2720 do {
2721 pentry = TAILQ_NEXT(s->last_displayed_entry, entry);
2722 if (pentry == NULL && view->mode != TOG_VIEW_SPLIT_HRZN)
2723 break;
2724
2725 s->last_displayed_entry = pentry ?
2726 pentry : s->last_displayed_entry;;
2727
2728 pentry = TAILQ_NEXT(s->first_displayed_entry, entry);
2729 if (pentry == NULL)
2730 break;
2731 s->first_displayed_entry = pentry;
2732 } while (++nscrolled < maxscroll);
2733
2734 if (view->mode == TOG_VIEW_SPLIT_HRZN && !s->thread_args.log_complete)
2735 view->nscrolled += nscrolled;
2736 else
2737 view->nscrolled = 0;
2738
2739 return err;
2740 }
2741
2742 static const struct got_error *
2743 open_diff_view_for_commit(struct tog_view **new_view, int begin_y, int begin_x,
2744 struct got_commit_object *commit, struct got_object_id *commit_id,
2745 struct tog_view *log_view, struct got_repository *repo)
2746 {
2747 const struct got_error *err;
2748 struct got_object_qid *parent_id;
2749 struct tog_view *diff_view;
2750
2751 diff_view = view_open(0, 0, begin_y, begin_x, TOG_VIEW_DIFF);
2752 if (diff_view == NULL)
2753 return got_error_from_errno("view_open");
2754
2755 parent_id = STAILQ_FIRST(got_object_commit_get_parent_ids(commit));
2756 err = open_diff_view(diff_view, parent_id ? &parent_id->id : NULL,
2757 commit_id, NULL, NULL, 3, 0, 0, log_view, repo);
2758 if (err == NULL)
2759 *new_view = diff_view;
2760 return err;
2761 }
2762
2763 static const struct got_error *
2764 tree_view_visit_subtree(struct tog_tree_view_state *s,
2765 struct got_tree_object *subtree)
2766 {
2767 struct tog_parent_tree *parent;
2768
2769 parent = calloc(1, sizeof(*parent));
2770 if (parent == NULL)
2771 return got_error_from_errno("calloc");
2772
2773 parent->tree = s->tree;
2774 parent->first_displayed_entry = s->first_displayed_entry;
2775 parent->selected_entry = s->selected_entry;
2776 parent->selected = s->selected;
2777 TAILQ_INSERT_HEAD(&s->parents, parent, entry);
2778 s->tree = subtree;
2779 s->selected = 0;
2780 s->first_displayed_entry = NULL;
2781 return NULL;
2782 }
2783
2784 static const struct got_error *
2785 tree_view_walk_path(struct tog_tree_view_state *s,
2786 struct got_commit_object *commit, const char *path)
2787 {
2788 const struct got_error *err = NULL;
2789 struct got_tree_object *tree = NULL;
2790 const char *p;
2791 char *slash, *subpath = NULL;
2792
2793 /* Walk the path and open corresponding tree objects. */
2794 p = path;
2795 while (*p) {
2796 struct got_tree_entry *te;
2797 struct got_object_id *tree_id;
2798 char *te_name;
2799
2800 while (p[0] == '/')
2801 p++;
2802
2803 /* Ensure the correct subtree entry is selected. */
2804 slash = strchr(p, '/');
2805 if (slash == NULL)
2806 te_name = strdup(p);
2807 else
2808 te_name = strndup(p, slash - p);
2809 if (te_name == NULL) {
2810 err = got_error_from_errno("strndup");
2811 break;
2812 }
2813 te = got_object_tree_find_entry(s->tree, te_name);
2814 if (te == NULL) {
2815 err = got_error_path(te_name, GOT_ERR_NO_TREE_ENTRY);
2816 free(te_name);
2817 break;
2818 }
2819 free(te_name);
2820 s->first_displayed_entry = s->selected_entry = te;
2821
2822 if (!S_ISDIR(got_tree_entry_get_mode(s->selected_entry)))
2823 break; /* jump to this file's entry */
2824
2825 slash = strchr(p, '/');
2826 if (slash)
2827 subpath = strndup(path, slash - path);
2828 else
2829 subpath = strdup(path);
2830 if (subpath == NULL) {
2831 err = got_error_from_errno("strdup");
2832 break;
2833 }
2834
2835 err = got_object_id_by_path(&tree_id, s->repo, commit,
2836 subpath);
2837 if (err)
2838 break;
2839
2840 err = got_object_open_as_tree(&tree, s->repo, tree_id);
2841 free(tree_id);
2842 if (err)
2843 break;
2844
2845 err = tree_view_visit_subtree(s, tree);
2846 if (err) {
2847 got_object_tree_close(tree);
2848 break;
2849 }
2850 if (slash == NULL)
2851 break;
2852 free(subpath);
2853 subpath = NULL;
2854 p = slash;
2855 }
2856
2857 free(subpath);
2858 return err;
2859 }
2860
2861 static const struct got_error *
2862 browse_commit_tree(struct tog_view **new_view, int begin_y, int begin_x,
2863 struct commit_queue_entry *entry, const char *path,
2864 const char *head_ref_name, struct got_repository *repo)
2865 {
2866 const struct got_error *err = NULL;
2867 struct tog_tree_view_state *s;
2868 struct tog_view *tree_view;
2869
2870 tree_view = view_open(0, 0, begin_y, begin_x, TOG_VIEW_TREE);
2871 if (tree_view == NULL)
2872 return got_error_from_errno("view_open");
2873
2874 err = open_tree_view(tree_view, entry->id, head_ref_name, repo);
2875 if (err)
2876 return err;
2877 s = &tree_view->state.tree;
2878
2879 *new_view = tree_view;
2880
2881 if (got_path_is_root_dir(path))
2882 return NULL;
2883
2884 return tree_view_walk_path(s, entry->commit, path);
2885 }
2886
2887 static const struct got_error *
2888 block_signals_used_by_main_thread(void)
2889 {
2890 sigset_t sigset;
2891 int errcode;
2892
2893 if (sigemptyset(&sigset) == -1)
2894 return got_error_from_errno("sigemptyset");
2895
2896 /* tog handles SIGWINCH, SIGCONT, SIGINT, SIGTERM */
2897 if (sigaddset(&sigset, SIGWINCH) == -1)
2898 return got_error_from_errno("sigaddset");
2899 if (sigaddset(&sigset, SIGCONT) == -1)
2900 return got_error_from_errno("sigaddset");
2901 if (sigaddset(&sigset, SIGINT) == -1)
2902 return got_error_from_errno("sigaddset");
2903 if (sigaddset(&sigset, SIGTERM) == -1)
2904 return got_error_from_errno("sigaddset");
2905
2906 /* ncurses handles SIGTSTP */
2907 if (sigaddset(&sigset, SIGTSTP) == -1)
2908 return got_error_from_errno("sigaddset");
2909
2910 errcode = pthread_sigmask(SIG_BLOCK, &sigset, NULL);
2911 if (errcode)
2912 return got_error_set_errno(errcode, "pthread_sigmask");
2913
2914 return NULL;
2915 }
2916
2917 static void *
2918 log_thread(void *arg)
2919 {
2920 const struct got_error *err = NULL;
2921 int errcode = 0;
2922 struct tog_log_thread_args *a = arg;
2923 int done = 0;
2924
2925 /*
2926 * Sync startup with main thread such that we begin our
2927 * work once view_input() has released the mutex.
2928 */
2929 errcode = pthread_mutex_lock(&tog_mutex);
2930 if (errcode) {
2931 err = got_error_set_errno(errcode, "pthread_mutex_lock");
2932 return (void *)err;
2933 }
2934
2935 err = block_signals_used_by_main_thread();
2936 if (err) {
2937 pthread_mutex_unlock(&tog_mutex);
2938 goto done;
2939 }
2940
2941 while (!done && !err && !tog_fatal_signal_received()) {
2942 errcode = pthread_mutex_unlock(&tog_mutex);
2943 if (errcode) {
2944 err = got_error_set_errno(errcode,
2945 "pthread_mutex_unlock");
2946 goto done;
2947 }
2948 err = queue_commits(a);
2949 if (err) {
2950 if (err->code != GOT_ERR_ITER_COMPLETED)
2951 goto done;
2952 err = NULL;
2953 done = 1;
2954 } else if (a->commits_needed > 0 && !a->load_all) {
2955 if (*a->limiting) {
2956 if (a->limit_match)
2957 a->commits_needed--;
2958 } else
2959 a->commits_needed--;
2960 }
2961
2962 errcode = pthread_mutex_lock(&tog_mutex);
2963 if (errcode) {
2964 err = got_error_set_errno(errcode,
2965 "pthread_mutex_lock");
2966 goto done;
2967 } else if (*a->quit)
2968 done = 1;
2969 else if (*a->limiting && *a->first_displayed_entry == NULL) {
2970 *a->first_displayed_entry =
2971 TAILQ_FIRST(&a->limit_commits->head);
2972 *a->selected_entry = *a->first_displayed_entry;
2973 } else if (*a->first_displayed_entry == NULL) {
2974 *a->first_displayed_entry =
2975 TAILQ_FIRST(&a->real_commits->head);
2976 *a->selected_entry = *a->first_displayed_entry;
2977 }
2978
2979 errcode = pthread_cond_signal(&a->commit_loaded);
2980 if (errcode) {
2981 err = got_error_set_errno(errcode,
2982 "pthread_cond_signal");
2983 pthread_mutex_unlock(&tog_mutex);
2984 goto done;
2985 }
2986
2987 if (done)
2988 a->commits_needed = 0;
2989 else {
2990 if (a->commits_needed == 0 && !a->load_all) {
2991 errcode = pthread_cond_wait(&a->need_commits,
2992 &tog_mutex);
2993 if (errcode) {
2994 err = got_error_set_errno(errcode,
2995 "pthread_cond_wait");
2996 pthread_mutex_unlock(&tog_mutex);
2997 goto done;
2998 }
2999 if (*a->quit)
3000 done = 1;
3001 }
3002 }
3003 }
3004 a->log_complete = 1;
3005 errcode = pthread_mutex_unlock(&tog_mutex);
3006 if (errcode)
3007 err = got_error_set_errno(errcode, "pthread_mutex_unlock");
3008 done:
3009 if (err) {
3010 tog_thread_error = 1;
3011 pthread_cond_signal(&a->commit_loaded);
3012 }
3013 return (void *)err;
3014 }
3015
3016 static const struct got_error *
3017 stop_log_thread(struct tog_log_view_state *s)
3018 {
3019 const struct got_error *err = NULL, *thread_err = NULL;
3020 int errcode;
3021
3022 if (s->thread) {
3023 s->quit = 1;
3024 errcode = pthread_cond_signal(&s->thread_args.need_commits);
3025 if (errcode)
3026 return got_error_set_errno(errcode,
3027 "pthread_cond_signal");
3028 errcode = pthread_mutex_unlock(&tog_mutex);
3029 if (errcode)
3030 return got_error_set_errno(errcode,
3031 "pthread_mutex_unlock");
3032 errcode = pthread_join(s->thread, (void **)&thread_err);
3033 if (errcode)
3034 return got_error_set_errno(errcode, "pthread_join");
3035 errcode = pthread_mutex_lock(&tog_mutex);
3036 if (errcode)
3037 return got_error_set_errno(errcode,
3038 "pthread_mutex_lock");
3039 s->thread = 0; //NULL;
3040 }
3041
3042 if (s->thread_args.repo) {
3043 err = got_repo_close(s->thread_args.repo);
3044 s->thread_args.repo = NULL;
3045 }
3046
3047 if (s->thread_args.pack_fds) {
3048 const struct got_error *pack_err =
3049 got_repo_pack_fds_close(s->thread_args.pack_fds);
3050 if (err == NULL)
3051 err = pack_err;
3052 s->thread_args.pack_fds = NULL;
3053 }
3054
3055 if (s->thread_args.graph) {
3056 got_commit_graph_close(s->thread_args.graph);
3057 s->thread_args.graph = NULL;
3058 }
3059
3060 return err ? err : thread_err;
3061 }
3062
3063 static const struct got_error *
3064 close_log_view(struct tog_view *view)
3065 {
3066 const struct got_error *err = NULL;
3067 struct tog_log_view_state *s = &view->state.log;
3068 int errcode;
3069
3070 err = stop_log_thread(s);
3071
3072 errcode = pthread_cond_destroy(&s->thread_args.need_commits);
3073 if (errcode && err == NULL)
3074 err = got_error_set_errno(errcode, "pthread_cond_destroy");
3075
3076 errcode = pthread_cond_destroy(&s->thread_args.commit_loaded);
3077 if (errcode && err == NULL)
3078 err = got_error_set_errno(errcode, "pthread_cond_destroy");
3079
3080 free_commits(&s->limit_commits);
3081 free_commits(&s->real_commits);
3082 free(s->in_repo_path);
3083 s->in_repo_path = NULL;
3084 free(s->start_id);
3085 s->start_id = NULL;
3086 free(s->head_ref_name);
3087 s->head_ref_name = NULL;
3088 return err;
3089 }
3090
3091 /*
3092 * We use two queues to implement the limit feature: first consists of
3093 * commits matching the current limit_regex; second is the real queue
3094 * of all known commits (real_commits). When the user starts limiting,
3095 * we swap queues such that all movement and displaying functionality
3096 * works with very slight change.
3097 */
3098 static const struct got_error *
3099 limit_log_view(struct tog_view *view)
3100 {
3101 struct tog_log_view_state *s = &view->state.log;
3102 struct commit_queue_entry *entry;
3103 struct tog_view *v = view;
3104 const struct got_error *err = NULL;
3105 char pattern[1024];
3106 int ret;
3107
3108 if (view_is_hsplit_top(view))
3109 v = view->child;
3110 else if (view->mode == TOG_VIEW_SPLIT_VERT && view->parent)
3111 v = view->parent;
3112
3113 /* Get the pattern */
3114 wmove(v->window, v->nlines - 1, 0);
3115 wclrtoeol(v->window);
3116 mvwaddstr(v->window, v->nlines - 1, 0, "&/");
3117 nodelay(v->window, FALSE);
3118 nocbreak();
3119 echo();
3120 ret = wgetnstr(v->window, pattern, sizeof(pattern));
3121 cbreak();
3122 noecho();
3123 nodelay(v->window, TRUE);
3124 if (ret == ERR)
3125 return NULL;
3126
3127 if (*pattern == '\0') {
3128 /*
3129 * Safety measure for the situation where the user
3130 * resets limit without previously limiting anything.
3131 */
3132 if (!s->limit_view)
3133 return NULL;
3134
3135 /*
3136 * User could have pressed Ctrl+L, which refreshed the
3137 * commit queues, it means we can't save previously
3138 * (before limit took place) displayed entries,
3139 * because they would point to already free'ed memory,
3140 * so we are forced to always select first entry of
3141 * the queue.
3142 */
3143 s->commits = &s->real_commits;
3144 s->first_displayed_entry = TAILQ_FIRST(&s->real_commits.head);
3145 s->selected_entry = s->first_displayed_entry;
3146 s->selected = 0;
3147 s->limit_view = 0;
3148
3149 return NULL;
3150 }
3151
3152 if (regcomp(&s->limit_regex, pattern, REG_EXTENDED | REG_NEWLINE))
3153 return NULL;
3154
3155 s->limit_view = 1;
3156
3157 /* Clear the screen while loading limit view */
3158 s->first_displayed_entry = NULL;
3159 s->last_displayed_entry = NULL;
3160 s->selected_entry = NULL;
3161 s->commits = &s->limit_commits;
3162
3163 /* Prepare limit queue for new search */
3164 free_commits(&s->limit_commits);
3165 s->limit_commits.ncommits = 0;
3166
3167 /* First process commits, which are in queue already */
3168 TAILQ_FOREACH(entry, &s->real_commits.head, entry) {
3169 int have_match = 0;
3170
3171 err = match_commit(&have_match, entry->id,
3172 entry->commit, &s->limit_regex);
3173 if (err)
3174 return err;
3175
3176 if (have_match) {
3177 struct commit_queue_entry *matched;
3178
3179 matched = alloc_commit_queue_entry(entry->commit,
3180 entry->id);
3181 if (matched == NULL) {
3182 err = got_error_from_errno(
3183 "alloc_commit_queue_entry");
3184 break;
3185 }
3186 matched->commit = entry->commit;
3187 got_object_commit_retain(entry->commit);
3188
3189 matched->idx = s->limit_commits.ncommits;
3190 TAILQ_INSERT_TAIL(&s->limit_commits.head,
3191 matched, entry);
3192 s->limit_commits.ncommits++;
3193 }
3194 }
3195
3196 /* Second process all the commits, until we fill the screen */
3197 if (s->limit_commits.ncommits < view->nlines - 1 &&
3198 !s->thread_args.log_complete) {
3199 s->thread_args.commits_needed +=
3200 view->nlines - s->limit_commits.ncommits - 1;
3201 err = trigger_log_thread(view, 1);
3202 if (err)
3203 return err;
3204 }
3205
3206 s->first_displayed_entry = TAILQ_FIRST(&s->commits->head);
3207 s->selected_entry = TAILQ_FIRST(&s->commits->head);
3208 s->selected = 0;
3209
3210 return NULL;
3211 }
3212
3213 static const struct got_error *
3214 search_start_log_view(struct tog_view *view)
3215 {
3216 struct tog_log_view_state *s = &view->state.log;
3217
3218 s->matched_entry = NULL;
3219 s->search_entry = NULL;
3220 return NULL;
3221 }
3222
3223 static const struct got_error *
3224 search_next_log_view(struct tog_view *view)
3225 {
3226 const struct got_error *err = NULL;
3227 struct tog_log_view_state *s = &view->state.log;
3228 struct commit_queue_entry *entry;
3229
3230 /* Display progress update in log view. */
3231 show_log_view(view);
3232 update_panels();
3233 doupdate();
3234
3235 if (s->search_entry) {
3236 int errcode, ch;
3237 errcode = pthread_mutex_unlock(&tog_mutex);
3238 if (errcode)
3239 return got_error_set_errno(errcode,
3240 "pthread_mutex_unlock");
3241 ch = wgetch(view->window);
3242 errcode = pthread_mutex_lock(&tog_mutex);
3243 if (errcode)
3244 return got_error_set_errno(errcode,
3245 "pthread_mutex_lock");
3246 if (ch == CTRL('g') || ch == KEY_BACKSPACE) {
3247 view->search_next_done = TOG_SEARCH_HAVE_MORE;
3248 return NULL;
3249 }
3250 if (view->searching == TOG_SEARCH_FORWARD)
3251 entry = TAILQ_NEXT(s->search_entry, entry);
3252 else
3253 entry = TAILQ_PREV(s->search_entry,
3254 commit_queue_head, entry);
3255 } else if (s->matched_entry) {
3256 /*
3257 * If the user has moved the cursor after we hit a match,
3258 * the position from where we should continue searching
3259 * might have changed.
3260 */
3261 if (view->searching == TOG_SEARCH_FORWARD)
3262 entry = TAILQ_NEXT(s->selected_entry, entry);
3263 else
3264 entry = TAILQ_PREV(s->selected_entry, commit_queue_head,
3265 entry);
3266 } else {
3267 entry = s->selected_entry;
3268 }
3269
3270 while (1) {
3271 int have_match = 0;
3272
3273 if (entry == NULL) {
3274 if (s->thread_args.log_complete ||
3275 view->searching == TOG_SEARCH_BACKWARD) {
3276 view->search_next_done =
3277 (s->matched_entry == NULL ?
3278 TOG_SEARCH_HAVE_NONE : TOG_SEARCH_NO_MORE);
3279 s->search_entry = NULL;
3280 return NULL;
3281 }
3282 /*
3283 * Poke the log thread for more commits and return,
3284 * allowing the main loop to make progress. Search
3285 * will resume at s->search_entry once we come back.
3286 */
3287 s->thread_args.commits_needed++;
3288 return trigger_log_thread(view, 0);
3289 }
3290
3291 err = match_commit(&have_match, entry->id, entry->commit,
3292 &view->regex);
3293 if (err)
3294 break;
3295 if (have_match) {
3296 view->search_next_done = TOG_SEARCH_HAVE_MORE;
3297 s->matched_entry = entry;
3298 break;
3299 }
3300
3301 s->search_entry = entry;
3302 if (view->searching == TOG_SEARCH_FORWARD)
3303 entry = TAILQ_NEXT(entry, entry);
3304 else
3305 entry = TAILQ_PREV(entry, commit_queue_head, entry);
3306 }
3307
3308 if (s->matched_entry) {
3309 int cur = s->selected_entry->idx;
3310 while (cur < s->matched_entry->idx) {
3311 err = input_log_view(NULL, view, KEY_DOWN);
3312 if (err)
3313 return err;
3314 cur++;
3315 }
3316 while (cur > s->matched_entry->idx) {
3317 err = input_log_view(NULL, view, KEY_UP);
3318 if (err)
3319 return err;
3320 cur--;
3321 }
3322 }
3323
3324 s->search_entry = NULL;
3325
3326 return NULL;
3327 }
3328
3329 static const struct got_error *
3330 open_log_view(struct tog_view *view, struct got_object_id *start_id,
3331 struct got_repository *repo, const char *head_ref_name,
3332 const char *in_repo_path, int log_branches)
3333 {
3334 const struct got_error *err = NULL;
3335 struct tog_log_view_state *s = &view->state.log;
3336 struct got_repository *thread_repo = NULL;
3337 struct got_commit_graph *thread_graph = NULL;
3338 int errcode;
3339
3340 if (in_repo_path != s->in_repo_path) {
3341 free(s->in_repo_path);
3342 s->in_repo_path = strdup(in_repo_path);
3343 if (s->in_repo_path == NULL)
3344 return got_error_from_errno("strdup");
3345 }
3346
3347 /* The commit queue only contains commits being displayed. */
3348 TAILQ_INIT(&s->real_commits.head);
3349 s->real_commits.ncommits = 0;
3350 s->commits = &s->real_commits;
3351
3352 TAILQ_INIT(&s->limit_commits.head);
3353 s->limit_view = 0;
3354 s->limit_commits.ncommits = 0;
3355
3356 s->repo = repo;
3357 if (head_ref_name) {
3358 s->head_ref_name = strdup(head_ref_name);
3359 if (s->head_ref_name == NULL) {
3360 err = got_error_from_errno("strdup");
3361 goto done;
3362 }
3363 }
3364 s->start_id = got_object_id_dup(start_id);
3365 if (s->start_id == NULL) {
3366 err = got_error_from_errno("got_object_id_dup");
3367 goto done;
3368 }
3369 s->log_branches = log_branches;
3370 s->use_committer = 1;
3371
3372 STAILQ_INIT(&s->colors);
3373 if (has_colors() && getenv("TOG_COLORS") != NULL) {
3374 err = add_color(&s->colors, "^$", TOG_COLOR_COMMIT,
3375 get_color_value("TOG_COLOR_COMMIT"));
3376 if (err)
3377 goto done;
3378 err = add_color(&s->colors, "^$", TOG_COLOR_AUTHOR,
3379 get_color_value("TOG_COLOR_AUTHOR"));
3380 if (err) {
3381 free_colors(&s->colors);
3382 goto done;
3383 }
3384 err = add_color(&s->colors, "^$", TOG_COLOR_DATE,
3385 get_color_value("TOG_COLOR_DATE"));
3386 if (err) {
3387 free_colors(&s->colors);
3388 goto done;
3389 }
3390 }
3391
3392 view->show = show_log_view;
3393 view->input = input_log_view;
3394 view->resize = resize_log_view;
3395 view->close = close_log_view;
3396 view->search_start = search_start_log_view;
3397 view->search_next = search_next_log_view;
3398
3399 if (s->thread_args.pack_fds == NULL) {
3400 err = got_repo_pack_fds_open(&s->thread_args.pack_fds);
3401 if (err)
3402 goto done;
3403 }
3404 err = got_repo_open(&thread_repo, got_repo_get_path(repo), NULL,
3405 s->thread_args.pack_fds);
3406 if (err)
3407 goto done;
3408 err = got_commit_graph_open(&thread_graph, s->in_repo_path,
3409 !s->log_branches);
3410 if (err)
3411 goto done;
3412 err = got_commit_graph_iter_start(thread_graph, s->start_id,
3413 s->repo, NULL, NULL);
3414 if (err)
3415 goto done;
3416
3417 errcode = pthread_cond_init(&s->thread_args.need_commits, NULL);
3418 if (errcode) {
3419 err = got_error_set_errno(errcode, "pthread_cond_init");
3420 goto done;
3421 }
3422 errcode = pthread_cond_init(&s->thread_args.commit_loaded, NULL);
3423 if (errcode) {
3424 err = got_error_set_errno(errcode, "pthread_cond_init");
3425 goto done;
3426 }
3427
3428 s->thread_args.commits_needed = view->nlines;
3429 s->thread_args.graph = thread_graph;
3430 s->thread_args.real_commits = &s->real_commits;
3431 s->thread_args.limit_commits = &s->limit_commits;
3432 s->thread_args.in_repo_path = s->in_repo_path;
3433 s->thread_args.start_id = s->start_id;
3434 s->thread_args.repo = thread_repo;
3435 s->thread_args.log_complete = 0;
3436 s->thread_args.quit = &s->quit;
3437 s->thread_args.first_displayed_entry = &s->first_displayed_entry;
3438 s->thread_args.selected_entry = &s->selected_entry;
3439 s->thread_args.searching = &view->searching;
3440 s->thread_args.search_next_done = &view->search_next_done;
3441 s->thread_args.regex = &view->regex;
3442 s->thread_args.limiting = &s->limit_view;
3443 s->thread_args.limit_regex = &s->limit_regex;
3444 s->thread_args.limit_commits = &s->limit_commits;
3445 done:
3446 if (err)
3447 close_log_view(view);
3448 return err;
3449 }
3450
3451 static const struct got_error *
3452 show_log_view(struct tog_view *view)
3453 {
3454 const struct got_error *err;
3455 struct tog_log_view_state *s = &view->state.log;
3456
3457 if (s->thread == 0) { //NULL) {
3458 int errcode = pthread_create(&s->thread, NULL, log_thread,
3459 &s->thread_args);
3460 if (errcode)
3461 return got_error_set_errno(errcode, "pthread_create");
3462 if (s->thread_args.commits_needed > 0) {
3463 err = trigger_log_thread(view, 1);
3464 if (err)
3465 return err;
3466 }
3467 }
3468
3469 return draw_commits(view);
3470 }
3471
3472 static void
3473 log_move_cursor_up(struct tog_view *view, int page, int home)
3474 {
3475 struct tog_log_view_state *s = &view->state.log;
3476
3477 if (s->first_displayed_entry == NULL)
3478 return;
3479 if (s->selected_entry->idx == 0)
3480 view->count = 0;
3481
3482 if ((page && TAILQ_FIRST(&s->commits->head) == s->first_displayed_entry)
3483 || home)
3484 s->selected = home ? 0 : MAX(0, s->selected - page - 1);
3485
3486 if (!page && !home && s->selected > 0)
3487 --s->selected;
3488 else
3489 log_scroll_up(s, home ? s->commits->ncommits : MAX(page, 1));
3490
3491 select_commit(s);
3492 return;
3493 }
3494
3495 static const struct got_error *
3496 log_move_cursor_down(struct tog_view *view, int page)
3497 {
3498 struct tog_log_view_state *s = &view->state.log;
3499 const struct got_error *err = NULL;
3500 int eos = view->nlines - 2;
3501
3502 if (s->first_displayed_entry == NULL)
3503 return NULL;
3504
3505 if (s->thread_args.log_complete &&
3506 s->selected_entry->idx >= s->commits->ncommits - 1)
3507 return NULL;
3508
3509 if (view_is_hsplit_top(view))
3510 --eos; /* border consumes the last line */
3511
3512 if (!page) {
3513 if (s->selected < MIN(eos, s->commits->ncommits - 1))
3514 ++s->selected;
3515 else
3516 err = log_scroll_down(view, 1);
3517 } else if (s->thread_args.load_all && s->thread_args.log_complete) {
3518 struct commit_queue_entry *entry;
3519 int n;
3520
3521 s->selected = 0;
3522 entry = TAILQ_LAST(&s->commits->head, commit_queue_head);
3523 s->last_displayed_entry = entry;
3524 for (n = 0; n <= eos; n++) {
3525 if (entry == NULL)
3526 break;
3527 s->first_displayed_entry = entry;
3528 entry = TAILQ_PREV(entry, commit_queue_head, entry);
3529 }
3530 if (n > 0)
3531 s->selected = n - 1;
3532 } else {
3533 if (s->last_displayed_entry->idx == s->commits->ncommits - 1 &&
3534 s->thread_args.log_complete)
3535 s->selected += MIN(page,
3536 s->commits->ncommits - s->selected_entry->idx - 1);
3537 else
3538 err = log_scroll_down(view, page);
3539 }
3540 if (err)
3541 return err;
3542
3543 /*
3544 * We might necessarily overshoot in horizontal
3545 * splits; if so, select the last displayed commit.
3546 */
3547 if (s->first_displayed_entry && s->last_displayed_entry) {
3548 s->selected = MIN(s->selected,
3549 s->last_displayed_entry->idx -
3550 s->first_displayed_entry->idx);
3551 }
3552
3553 select_commit(s);
3554
3555 if (s->thread_args.log_complete &&
3556 s->selected_entry->idx == s->commits->ncommits - 1)
3557 view->count = 0;
3558
3559 return NULL;
3560 }
3561
3562 static void
3563 view_get_split(struct tog_view *view, int *y, int *x)
3564 {
3565 *x = 0;
3566 *y = 0;
3567
3568 if (view->mode == TOG_VIEW_SPLIT_HRZN) {
3569 if (view->child && view->child->resized_y)
3570 *y = view->child->resized_y;
3571 else if (view->resized_y)
3572 *y = view->resized_y;
3573 else
3574 *y = view_split_begin_y(view->lines);
3575 } else if (view->mode == TOG_VIEW_SPLIT_VERT) {
3576 if (view->child && view->child->resized_x)
3577 *x = view->child->resized_x;
3578 else if (view->resized_x)
3579 *x = view->resized_x;
3580 else
3581 *x = view_split_begin_x(view->begin_x);
3582 }
3583 }
3584
3585 /* Split view horizontally at y and offset view->state->selected line. */
3586 static const struct got_error *
3587 view_init_hsplit(struct tog_view *view, int y)
3588 {
3589 const struct got_error *err = NULL;
3590
3591 view->nlines = y;
3592 view->ncols = COLS;
3593 err = view_resize(view);
3594 if (err)
3595 return err;
3596
3597 err = offset_selection_down(view);
3598
3599 return err;
3600 }
3601
3602 static const struct got_error *
3603 log_goto_line(struct tog_view *view, int nlines)
3604 {
3605 const struct got_error *err = NULL;
3606 struct tog_log_view_state *s = &view->state.log;
3607 int g, idx = s->selected_entry->idx;
3608
3609 if (s->first_displayed_entry == NULL || s->last_displayed_entry == NULL)
3610 return NULL;
3611
3612 g = view->gline;
3613 view->gline = 0;
3614
3615 if (g >= s->first_displayed_entry->idx + 1 &&
3616 g <= s->last_displayed_entry->idx + 1 &&
3617 g - s->first_displayed_entry->idx - 1 < nlines) {
3618 s->selected = g - s->first_displayed_entry->idx - 1;
3619 select_commit(s);
3620 return NULL;
3621 }
3622
3623 if (idx + 1 < g) {
3624 err = log_move_cursor_down(view, g - idx - 1);
3625 if (!err && g > s->selected_entry->idx + 1)
3626 err = log_move_cursor_down(view,
3627 g - s->first_displayed_entry->idx - 1);
3628 if (err)
3629 return err;
3630 } else if (idx + 1 > g)
3631 log_move_cursor_up(view, idx - g + 1, 0);
3632
3633 if (g < nlines && s->first_displayed_entry->idx == 0)
3634 s->selected = g - 1;
3635
3636 select_commit(s);
3637 return NULL;
3638
3639 }
3640
3641 static const struct got_error *
3642 input_log_view(struct tog_view **new_view, struct tog_view *view, int ch)
3643 {
3644 const struct got_error *err = NULL;
3645 struct tog_log_view_state *s = &view->state.log;
3646 int eos, nscroll;
3647
3648 if (s->thread_args.load_all) {
3649 if (ch == CTRL('g') || ch == KEY_BACKSPACE)
3650 s->thread_args.load_all = 0;
3651 else if (s->thread_args.log_complete) {
3652 err = log_move_cursor_down(view, s->commits->ncommits);
3653 s->thread_args.load_all = 0;
3654 }
3655 if (err)
3656 return err;
3657 }
3658
3659 eos = nscroll = view->nlines - 1;
3660 if (view_is_hsplit_top(view))
3661 --eos; /* border */
3662
3663 if (view->gline)
3664 return log_goto_line(view, eos);
3665
3666 switch (ch) {
3667 case '&':
3668 err = limit_log_view(view);
3669 break;
3670 case 'q':
3671 s->quit = 1;
3672 break;
3673 case '0':
3674 view->x = 0;
3675 break;
3676 case '$':
3677 view->x = MAX(view->maxx - view->ncols / 2, 0);
3678 view->count = 0;
3679 break;
3680 case KEY_RIGHT:
3681 case 'l':
3682 if (view->x + view->ncols / 2 < view->maxx)
3683 view->x += 2; /* move two columns right */
3684 else
3685 view->count = 0;
3686 break;
3687 case KEY_LEFT:
3688 case 'h':
3689 view->x -= MIN(view->x, 2); /* move two columns back */
3690 if (view->x <= 0)
3691 view->count = 0;
3692 break;
3693 case 'k':
3694 case KEY_UP:
3695 case '<':
3696 case ',':
3697 case CTRL('p'):
3698 log_move_cursor_up(view, 0, 0);
3699 break;
3700 case 'g':
3701 case KEY_HOME:
3702 log_move_cursor_up(view, 0, 1);
3703 view->count = 0;
3704 break;
3705 case CTRL('u'):
3706 case 'u':
3707 nscroll /= 2;
3708 /* FALL THROUGH */
3709 case KEY_PPAGE:
3710 case CTRL('b'):
3711 case 'b':
3712 log_move_cursor_up(view, nscroll, 0);
3713 break;
3714 case 'j':
3715 case KEY_DOWN:
3716 case '>':
3717 case '.':
3718 case CTRL('n'):
3719 err = log_move_cursor_down(view, 0);
3720 break;
3721 case '@':
3722 s->use_committer = !s->use_committer;
3723 break;
3724 case 'G':
3725 case KEY_END: {
3726 /* We don't know yet how many commits, so we're forced to
3727 * traverse them all. */
3728 view->count = 0;
3729 s->thread_args.load_all = 1;
3730 if (!s->thread_args.log_complete)
3731 return trigger_log_thread(view, 0);
3732 err = log_move_cursor_down(view, s->commits->ncommits);
3733 s->thread_args.load_all = 0;
3734 break;
3735 }
3736 case CTRL('d'):
3737 case 'd':
3738 nscroll /= 2;
3739 /* FALL THROUGH */
3740 case KEY_NPAGE:
3741 case CTRL('f'):
3742 case 'f':
3743 case ' ':
3744 err = log_move_cursor_down(view, nscroll);
3745 break;
3746 case KEY_RESIZE:
3747 if (s->selected > view->nlines - 2)
3748 s->selected = view->nlines - 2;
3749 if (s->selected > s->commits->ncommits - 1)
3750 s->selected = s->commits->ncommits - 1;
3751 select_commit(s);
3752 if (s->commits->ncommits < view->nlines - 1 &&
3753 !s->thread_args.log_complete) {
3754 s->thread_args.commits_needed += (view->nlines - 1) -
3755 s->commits->ncommits;
3756 err = trigger_log_thread(view, 1);
3757 }
3758 break;
3759 case KEY_ENTER:
3760 case '\r':
3761 view->count = 0;
3762 if (s->selected_entry == NULL)
3763 break;
3764 err = view_request_new(new_view, view, TOG_VIEW_DIFF);
3765 break;
3766 case 'T':
3767 view->count = 0;
3768 if (s->selected_entry == NULL)
3769 break;
3770 err = view_request_new(new_view, view, TOG_VIEW_TREE);
3771 break;
3772 case KEY_BACKSPACE:
3773 case CTRL('l'):
3774 case 'B':
3775 view->count = 0;
3776 if (ch == KEY_BACKSPACE &&
3777 got_path_is_root_dir(s->in_repo_path))
3778 break;
3779 err = stop_log_thread(s);
3780 if (err)
3781 return err;
3782 if (ch == KEY_BACKSPACE) {
3783 char *parent_path;
3784 err = got_path_dirname(&parent_path, s->in_repo_path);
3785 if (err)
3786 return err;
3787 free(s->in_repo_path);
3788 s->in_repo_path = parent_path;
3789 s->thread_args.in_repo_path = s->in_repo_path;
3790 } else if (ch == CTRL('l')) {
3791 struct got_object_id *start_id;
3792 err = got_repo_match_object_id(&start_id, NULL,
3793 s->head_ref_name ? s->head_ref_name : GOT_REF_HEAD,
3794 GOT_OBJ_TYPE_COMMIT, &tog_refs, s->repo);
3795 if (err) {
3796 if (s->head_ref_name == NULL ||
3797 err->code != GOT_ERR_NOT_REF)
3798 return err;
3799 /* Try to cope with deleted references. */
3800 free(s->head_ref_name);
3801 s->head_ref_name = NULL;
3802 err = got_repo_match_object_id(&start_id,
3803 NULL, GOT_REF_HEAD, GOT_OBJ_TYPE_COMMIT,
3804 &tog_refs, s->repo);
3805 if (err)
3806 return err;
3807 }
3808 free(s->start_id);
3809 s->start_id = start_id;
3810 s->thread_args.start_id = s->start_id;
3811 } else /* 'B' */
3812 s->log_branches = !s->log_branches;
3813
3814 if (s->thread_args.pack_fds == NULL) {
3815 err = got_repo_pack_fds_open(&s->thread_args.pack_fds);
3816 if (err)
3817 return err;
3818 }
3819 err = got_repo_open(&s->thread_args.repo,
3820 got_repo_get_path(s->repo), NULL,
3821 s->thread_args.pack_fds);
3822 if (err)
3823 return err;
3824 tog_free_refs();
3825 err = tog_load_refs(s->repo, 0);
3826 if (err)
3827 return err;
3828 err = got_commit_graph_open(&s->thread_args.graph,
3829 s->in_repo_path, !s->log_branches);
3830 if (err)
3831 return err;
3832 err = got_commit_graph_iter_start(s->thread_args.graph,
3833 s->start_id, s->repo, NULL, NULL);
3834 if (err)
3835 return err;
3836 free_commits(&s->real_commits);
3837 free_commits(&s->limit_commits);
3838 s->first_displayed_entry = NULL;
3839 s->last_displayed_entry = NULL;
3840 s->selected_entry = NULL;
3841 s->selected = 0;
3842 s->thread_args.log_complete = 0;
3843 s->quit = 0;
3844 s->thread_args.commits_needed = view->lines;
3845 s->matched_entry = NULL;
3846 s->search_entry = NULL;
3847 view->offset = 0;
3848 break;
3849 case 'R':
3850 view->count = 0;
3851 err = view_request_new(new_view, view, TOG_VIEW_REF);
3852 break;
3853 default:
3854 view->count = 0;
3855 break;
3856 }
3857
3858 return err;
3859 }
3860
3861 static const struct got_error *
3862 apply_unveil(const char *repo_path, const char *worktree_path)
3863 {
3864 const struct got_error *error;
3865
3866 #ifdef PROFILE
3867 if (unveil("gmon.out", "rwc") != 0)
3868 return got_error_from_errno2("unveil", "gmon.out");
3869 #endif
3870 if (repo_path && unveil(repo_path, "r") != 0)
3871 return got_error_from_errno2("unveil", repo_path);
3872
3873 if (worktree_path && unveil(worktree_path, "rwc") != 0)
3874 return got_error_from_errno2("unveil", worktree_path);
3875
3876 if (unveil(GOT_TMPDIR_STR, "rwc") != 0)
3877 return got_error_from_errno2("unveil", GOT_TMPDIR_STR);
3878
3879 error = got_privsep_unveil_exec_helpers();
3880 if (error != NULL)
3881 return error;
3882
3883 if (unveil(NULL, NULL) != 0)
3884 return got_error_from_errno("unveil");
3885
3886 return NULL;
3887 }
3888
3889 static void
3890 init_curses(void)
3891 {
3892 /*
3893 * Override default signal handlers before starting ncurses.
3894 * This should prevent ncurses from installing its own
3895 * broken cleanup() signal handler.
3896 */
3897 signal(SIGWINCH, tog_sigwinch);
3898 signal(SIGPIPE, tog_sigpipe);
3899 signal(SIGCONT, tog_sigcont);
3900 signal(SIGINT, tog_sigint);
3901 signal(SIGTERM, tog_sigterm);
3902
3903 initscr();
3904 cbreak();
3905 halfdelay(1); /* Do fast refresh while initial view is loading. */
3906 noecho();
3907 nonl();
3908 intrflush(stdscr, FALSE);
3909 keypad(stdscr, TRUE);
3910 curs_set(0);
3911 if (getenv("TOG_COLORS") != NULL) {
3912 start_color();
3913 use_default_colors();
3914 }
3915 }
3916
3917 static const struct got_error *
3918 get_in_repo_path_from_argv0(char **in_repo_path, int argc, char *argv[],
3919 struct got_repository *repo, struct got_worktree *worktree)
3920 {
3921 const struct got_error *err = NULL;
3922
3923 if (argc == 0) {
3924 *in_repo_path = strdup("/");
3925 if (*in_repo_path == NULL)
3926 return got_error_from_errno("strdup");
3927 return NULL;
3928 }
3929
3930 if (worktree) {
3931 const char *prefix = got_worktree_get_path_prefix(worktree);
3932 char *p;
3933
3934 err = got_worktree_resolve_path(&p, worktree, argv[0]);
3935 if (err)
3936 return err;
3937 if (asprintf(in_repo_path, "%s%s%s", prefix,
3938 (p[0] != '\0' && !got_path_is_root_dir(prefix)) ? "/" : "",
3939 p) == -1) {
3940 err = got_error_from_errno("asprintf");
3941 *in_repo_path = NULL;
3942 }
3943 free(p);
3944 } else
3945 err = got_repo_map_path(in_repo_path, repo, argv[0]);
3946
3947 return err;
3948 }
3949
3950 static const struct got_error *
3951 cmd_log(int argc, char *argv[])
3952 {
3953 const struct got_error *error;
3954 struct got_repository *repo = NULL;
3955 struct got_worktree *worktree = NULL;
3956 struct got_object_id *start_id = NULL;
3957 char *in_repo_path = NULL, *repo_path = NULL, *cwd = NULL;
3958 char *start_commit = NULL, *label = NULL;
3959 struct got_reference *ref = NULL;
3960 const char *head_ref_name = NULL;
3961 int ch, log_branches = 0;
3962 struct tog_view *view;
3963 int *pack_fds = NULL;
3964
3965 while ((ch = getopt(argc, argv, "bc:r:")) != -1) {
3966 switch (ch) {
3967 case 'b':
3968 log_branches = 1;
3969 break;
3970 case 'c':
3971 start_commit = optarg;
3972 break;
3973 case 'r':
3974 repo_path = realpath(optarg, NULL);
3975 if (repo_path == NULL)
3976 return got_error_from_errno2("realpath",
3977 optarg);
3978 break;
3979 default:
3980 usage_log();
3981 /* NOTREACHED */
3982 }
3983 }
3984
3985 argc -= optind;
3986 argv += optind;
3987
3988 if (argc > 1)
3989 usage_log();
3990
3991 error = got_repo_pack_fds_open(&pack_fds);
3992 if (error != NULL)
3993 goto done;
3994
3995 if (repo_path == NULL) {
3996 cwd = getcwd(NULL, 0);
3997 if (cwd == NULL)
3998 return got_error_from_errno("getcwd");
3999 error = got_worktree_open(&worktree, cwd);
4000 if (error && error->code != GOT_ERR_NOT_WORKTREE)
4001 goto done;
4002 if (worktree)
4003 repo_path =
4004 strdup(got_worktree_get_repo_path(worktree));
4005 else
4006 repo_path = strdup(cwd);
4007 if (repo_path == NULL) {
4008 error = got_error_from_errno("strdup");
4009 goto done;
4010 }
4011 }
4012
4013 error = got_repo_open(&repo, repo_path, NULL, pack_fds);
4014 if (error != NULL)
4015 goto done;
4016
4017 error = get_in_repo_path_from_argv0(&in_repo_path, argc, argv,
4018 repo, worktree);
4019 if (error)
4020 goto done;
4021
4022 init_curses();
4023
4024 error = apply_unveil(got_repo_get_path(repo),
4025 worktree ? got_worktree_get_root_path(worktree) : NULL);
4026 if (error)
4027 goto done;
4028
4029 /* already loaded by tog_log_with_path()? */
4030 if (TAILQ_EMPTY(&tog_refs)) {
4031 error = tog_load_refs(repo, 0);
4032 if (error)
4033 goto done;
4034 }
4035
4036 if (start_commit == NULL) {
4037 error = got_repo_match_object_id(&start_id, &label,
4038 worktree ? got_worktree_get_head_ref_name(worktree) :
4039 GOT_REF_HEAD, GOT_OBJ_TYPE_COMMIT, &tog_refs, repo);
4040 if (error)
4041 goto done;
4042 head_ref_name = label;
4043 } else {
4044 error = got_ref_open(&ref, repo, start_commit, 0);
4045 if (error == NULL)
4046 head_ref_name = got_ref_get_name(ref);
4047 else if (error->code != GOT_ERR_NOT_REF)
4048 goto done;
4049 error = got_repo_match_object_id(&start_id, NULL,
4050 start_commit, GOT_OBJ_TYPE_COMMIT, &tog_refs, repo);
4051 if (error)
4052 goto done;
4053 }
4054
4055 view = view_open(0, 0, 0, 0, TOG_VIEW_LOG);
4056 if (view == NULL) {
4057 error = got_error_from_errno("view_open");
4058 goto done;
4059 }
4060 error = open_log_view(view, start_id, repo, head_ref_name,
4061 in_repo_path, log_branches);
4062 if (error)
4063 goto done;
4064 if (worktree) {
4065 /* Release work tree lock. */
4066 got_worktree_close(worktree);
4067 worktree = NULL;
4068 }
4069 error = view_loop(view);
4070 done:
4071 free(in_repo_path);
4072 free(repo_path);
4073 free(cwd);
4074 free(start_id);
4075 free(label);
4076 if (ref)
4077 got_ref_close(ref);
4078 if (repo) {
4079 const struct got_error *close_err = got_repo_close(repo);
4080 if (error == NULL)
4081 error = close_err;
4082 }
4083 if (worktree)
4084 got_worktree_close(worktree);
4085 if (pack_fds) {
4086 const struct got_error *pack_err =
4087 got_repo_pack_fds_close(pack_fds);
4088 if (error == NULL)
4089 error = pack_err;
4090 }
4091 tog_free_refs();
4092 return error;
4093 }
4094
4095 __dead static void
4096 usage_diff(void)
4097 {
4098 endwin();
4099 fprintf(stderr, "usage: %s diff [-aw] [-C number] [-r repository-path] "
4100 "object1 object2\n", getprogname());
4101 exit(1);
4102 }
4103
4104 static int
4105 match_line(const char *line, regex_t *regex, size_t nmatch,
4106 regmatch_t *regmatch)
4107 {
4108 return regexec(regex, line, nmatch, regmatch, 0) == 0;
4109 }
4110
4111 static struct tog_color *
4112 match_color(struct tog_colors *colors, const char *line)
4113 {
4114 struct tog_color *tc = NULL;
4115
4116 STAILQ_FOREACH(tc, colors, entry) {
4117 if (match_line(line, &tc->regex, 0, NULL))
4118 return tc;
4119 }
4120
4121 return NULL;
4122 }
4123
4124 static const struct got_error *
4125 add_matched_line(int *wtotal, const char *line, int wlimit, int col_tab_align,
4126 WINDOW *window, int skipcol, regmatch_t *regmatch)
4127 {
4128 const struct got_error *err = NULL;
4129 char *exstr = NULL;
4130 wchar_t *wline = NULL;
4131 int rme, rms, n, width, scrollx;
4132 int width0 = 0, width1 = 0, width2 = 0;
4133 char *seg0 = NULL, *seg1 = NULL, *seg2 = NULL;
4134
4135 *wtotal = 0;
4136
4137 rms = regmatch->rm_so;
4138 rme = regmatch->rm_eo;
4139
4140 err = expand_tab(&exstr, line);
4141 if (err)
4142 return err;
4143
4144 /* Split the line into 3 segments, according to match offsets. */
4145 seg0 = strndup(exstr, rms);
4146 if (seg0 == NULL) {
4147 err = got_error_from_errno("strndup");
4148 goto done;
4149 }
4150 seg1 = strndup(exstr + rms, rme - rms);
4151 if (seg1 == NULL) {
4152 err = got_error_from_errno("strndup");
4153 goto done;
4154 }
4155 seg2 = strdup(exstr + rme);
4156 if (seg2 == NULL) {
4157 err = got_error_from_errno("strndup");
4158 goto done;
4159 }
4160
4161 /* draw up to matched token if we haven't scrolled past it */
4162 err = format_line(&wline, &width0, NULL, seg0, 0, wlimit,
4163 col_tab_align, 1);
4164 if (err)
4165 goto done;
4166 n = MAX(width0 - skipcol, 0);
4167 if (n) {
4168 free(wline);
4169 err = format_line(&wline, &width, &scrollx, seg0, skipcol,
4170 wlimit, col_tab_align, 1);
4171 if (err)
4172 goto done;
4173 waddwstr(window, &wline[scrollx]);
4174 wlimit -= width;
4175 *wtotal += width;
4176 }
4177
4178 if (wlimit > 0) {
4179 int i = 0, w = 0;
4180 size_t wlen;
4181
4182 free(wline);
4183 err = format_line(&wline, &width1, NULL, seg1, 0, wlimit,
4184 col_tab_align, 1);
4185 if (err)
4186 goto done;
4187 wlen = wcslen(wline);
4188 while (i < wlen) {
4189 width = wcwidth(wline[i]);
4190 if (width == -1) {
4191 /* should not happen, tabs are expanded */
4192 err = got_error(GOT_ERR_RANGE);
4193 goto done;
4194 }
4195 if (width0 + w + width > skipcol)
4196 break;
4197 w += width;
4198 i++;
4199 }
4200 /* draw (visible part of) matched token (if scrolled into it) */
4201 if (width1 - w > 0) {
4202 wattron(window, A_STANDOUT);
4203 waddwstr(window, &wline[i]);
4204 wattroff(window, A_STANDOUT);
4205 wlimit -= (width1 - w);
4206 *wtotal += (width1 - w);
4207 }
4208 }
4209
4210 if (wlimit > 0) { /* draw rest of line */
4211 free(wline);
4212 if (skipcol > width0 + width1) {
4213 err = format_line(&wline, &width2, &scrollx, seg2,
4214 skipcol - (width0 + width1), wlimit,
4215 col_tab_align, 1);
4216 if (err)
4217 goto done;
4218 waddwstr(window, &wline[scrollx]);
4219 } else {
4220 err = format_line(&wline, &width2, NULL, seg2, 0,
4221 wlimit, col_tab_align, 1);
4222 if (err)
4223 goto done;
4224 waddwstr(window, wline);
4225 }
4226 *wtotal += width2;
4227 }
4228 done:
4229 free(wline);
4230 free(exstr);
4231 free(seg0);
4232 free(seg1);
4233 free(seg2);
4234 return err;
4235 }
4236
4237 static int
4238 gotoline(struct tog_view *view, int *lineno, int *nprinted)
4239 {
4240 FILE *f = NULL;
4241 int *eof, *first, *selected;
4242
4243 if (view->type == TOG_VIEW_DIFF) {
4244 struct tog_diff_view_state *s = &view->state.diff;
4245
4246 first = &s->first_displayed_line;
4247 selected = first;
4248 eof = &s->eof;
4249 f = s->f;
4250 } else if (view->type == TOG_VIEW_HELP) {
4251 struct tog_help_view_state *s = &view->state.help;
4252
4253 first = &s->first_displayed_line;
4254 selected = first;
4255 eof = &s->eof;
4256 f = s->f;
4257 } else if (view->type == TOG_VIEW_BLAME) {
4258 struct tog_blame_view_state *s = &view->state.blame;
4259
4260 first = &s->first_displayed_line;
4261 selected = &s->selected_line;
4262 eof = &s->eof;
4263 f = s->blame.f;
4264 } else
4265 return 0;
4266
4267 /* Center gline in the middle of the page like vi(1). */
4268 if (*lineno < view->gline - (view->nlines - 3) / 2)
4269 return 0;
4270 if (*first != 1 && (*lineno > view->gline - (view->nlines - 3) / 2)) {
4271 rewind(f);
4272 *eof = 0;
4273 *first = 1;
4274 *lineno = 0;
4275 *nprinted = 0;
4276 return 0;
4277 }
4278
4279 *selected = view->gline <= (view->nlines - 3) / 2 ?
4280 view->gline : (view->nlines - 3) / 2 + 1;
4281 view->gline = 0;
4282
4283 return 1;
4284 }
4285
4286 static const struct got_error *
4287 draw_file(struct tog_view *view, const char *header)
4288 {
4289 struct tog_diff_view_state *s = &view->state.diff;
4290 regmatch_t *regmatch = &view->regmatch;
4291 const struct got_error *err;
4292 int nprinted = 0;
4293 char *line;
4294 size_t linesize = 0;
4295 ssize_t linelen;
4296 wchar_t *wline;
4297 int width;
4298 int max_lines = view->nlines;
4299 int nlines = s->nlines;
4300 off_t line_offset;
4301
4302 s->lineno = s->first_displayed_line - 1;
4303 line_offset = s->lines[s->first_displayed_line - 1].offset;
4304 if (fseeko(s->f, line_offset, SEEK_SET) == -1)
4305 return got_error_from_errno("fseek");
4306
4307 werase(view->window);
4308
4309 if (view->gline > s->nlines - 1)
4310 view->gline = s->nlines - 1;
4311
4312 if (header) {
4313 int ln = view->gline ? view->gline <= (view->nlines - 3) / 2 ?
4314 1 : view->gline - (view->nlines - 3) / 2 :
4315 s->lineno + s->selected_line;
4316
4317 if (asprintf(&line, "[%d/%d] %s", ln, nlines, header) == -1)
4318 return got_error_from_errno("asprintf");
4319 err = format_line(&wline, &width, NULL, line, 0, view->ncols,
4320 0, 0);
4321 free(line);
4322 if (err)
4323 return err;
4324
4325 if (view_needs_focus_indication(view))
4326 wstandout(view->window);
4327 waddwstr(view->window, wline);
4328 free(wline);
4329 wline = NULL;
4330 while (width++ < view->ncols)
4331 waddch(view->window, ' ');
4332 if (view_needs_focus_indication(view))
4333 wstandend(view->window);
4334
4335 if (max_lines <= 1)
4336 return NULL;
4337 max_lines--;
4338 }
4339
4340 s->eof = 0;
4341 view->maxx = 0;
4342 line = NULL;
4343 while (max_lines > 0 && nprinted < max_lines) {
4344 enum got_diff_line_type linetype;
4345 attr_t attr = 0;
4346
4347 linelen = getline(&line, &linesize, s->f);
4348 if (linelen == -1) {
4349 if (feof(s->f)) {
4350 s->eof = 1;
4351 break;
4352 }
4353 free(line);
4354 return got_ferror(s->f, GOT_ERR_IO);
4355 }
4356
4357 if (++s->lineno < s->first_displayed_line)
4358 continue;
4359 if (view->gline && !gotoline(view, &s->lineno, &nprinted))
4360 continue;
4361 if (s->lineno == view->hiline)
4362 attr = A_STANDOUT;
4363
4364 /* Set view->maxx based on full line length. */
4365 err = format_line(&wline, &width, NULL, line, 0, INT_MAX, 0,
4366 view->x ? 1 : 0);
4367 if (err) {
4368 free(line);
4369 return err;
4370 }
4371 view->maxx = MAX(view->maxx, width);
4372 free(wline);
4373 wline = NULL;
4374
4375 linetype = s->lines[s->lineno].type;
4376 if (linetype > GOT_DIFF_LINE_LOGMSG &&
4377 linetype < GOT_DIFF_LINE_CONTEXT)
4378 attr |= COLOR_PAIR(linetype);
4379 if (attr)
4380 wattron(view->window, attr);
4381 if (s->first_displayed_line + nprinted == s->matched_line &&
4382 regmatch->rm_so >= 0 && regmatch->rm_so < regmatch->rm_eo) {
4383 err = add_matched_line(&width, line, view->ncols, 0,
4384 view->window, view->x, regmatch);
4385 if (err) {
4386 free(line);
4387 return err;
4388 }
4389 } else {
4390 int skip;
4391 err = format_line(&wline, &width, &skip, line,
4392 view->x, view->ncols, 0, view->x ? 1 : 0);
4393 if (err) {
4394 free(line);
4395 return err;
4396 }
4397 waddwstr(view->window, &wline[skip]);
4398 free(wline);
4399 wline = NULL;
4400 }
4401 if (s->lineno == view->hiline) {
4402 /* highlight full gline length */
4403 while (width++ < view->ncols)
4404 waddch(view->window, ' ');
4405 } else {
4406 if (width <= view->ncols - 1)
4407 waddch(view->window, '\n');
4408 }
4409 if (attr)
4410 wattroff(view->window, attr);
4411 if (++nprinted == 1)
4412 s->first_displayed_line = s->lineno;
4413 }
4414 free(line);
4415 if (nprinted >= 1)
4416 s->last_displayed_line = s->first_displayed_line +
4417 (nprinted - 1);
4418 else
4419 s->last_displayed_line = s->first_displayed_line;
4420
4421 view_border(view);
4422
4423 if (s->eof) {
4424 while (nprinted < view->nlines) {
4425 waddch(view->window, '\n');
4426 nprinted++;
4427 }
4428
4429 err = format_line(&wline, &width, NULL, TOG_EOF_STRING, 0,
4430 view->ncols, 0, 0);
4431 if (err) {
4432 return err;
4433 }
4434
4435 wstandout(view->window);
4436 waddwstr(view->window, wline);
4437 free(wline);
4438 wline = NULL;
4439 wstandend(view->window);
4440 }
4441
4442 return NULL;
4443 }
4444
4445 static char *
4446 get_datestr(time_t *time, char *datebuf)
4447 {
4448 struct tm mytm, *tm;
4449 char *p, *s;
4450
4451 tm = gmtime_r(time, &mytm);
4452 if (tm == NULL)
4453 return NULL;
4454 s = asctime_r(tm, datebuf);
4455 if (s == NULL)
4456 return NULL;
4457 p = strchr(s, '\n');
4458 if (p)
4459 *p = '\0';
4460 return s;
4461 }
4462
4463 static const struct got_error *
4464 get_changed_paths(struct got_pathlist_head *paths,
4465 struct got_commit_object *commit, struct got_repository *repo,
4466 struct got_diffstat_cb_arg *dsa)
4467 {
4468 const struct got_error *err = NULL;
4469 struct got_object_id *tree_id1 = NULL, *tree_id2 = NULL;
4470 struct got_tree_object *tree1 = NULL, *tree2 = NULL;
4471 struct got_object_qid *qid;
4472 FILE *f1 = NULL, *f2 = NULL;
4473 int fd1 = -1, fd2 = -1;
4474
4475 f1 = got_opentemp();
4476 if (f1 == NULL) {
4477 err = got_error_from_errno("got_opentemp");
4478 goto done;
4479 }
4480 f2 = got_opentemp();
4481 if (f2 == NULL) {
4482 err = got_error_from_errno("got_opentemp");
4483 goto done;
4484 }
4485
4486 fd1 = got_opentempfd();
4487 if (fd1 == -1) {
4488 err = got_error_from_errno("got_opentempfd");
4489 goto done;
4490 }
4491 fd2 = got_opentempfd();
4492 if (fd2 == -1) {
4493 err = got_error_from_errno("got_opentempfd");
4494 goto done;
4495 }
4496
4497 qid = STAILQ_FIRST(got_object_commit_get_parent_ids(commit));
4498 if (qid != NULL) {
4499 struct got_commit_object *pcommit;
4500 err = got_object_open_as_commit(&pcommit, repo,
4501 &qid->id);
4502 if (err)
4503 return err;
4504
4505 tree_id1 = got_object_id_dup(
4506 got_object_commit_get_tree_id(pcommit));
4507 if (tree_id1 == NULL) {
4508 got_object_commit_close(pcommit);
4509 return got_error_from_errno("got_object_id_dup");
4510 }
4511 got_object_commit_close(pcommit);
4512
4513 }
4514
4515 if (tree_id1) {
4516 err = got_object_open_as_tree(&tree1, repo, tree_id1);
4517 if (err)
4518 goto done;
4519 }
4520
4521 tree_id2 = got_object_commit_get_tree_id(commit);
4522 err = got_object_open_as_tree(&tree2, repo, tree_id2);
4523 if (err)
4524 goto done;
4525
4526 err = got_diff_tree(tree1, tree2, f1, f2, fd1, fd2, "", "", repo,
4527 got_diff_tree_compute_diffstat, dsa, 1);
4528 done:
4529 if (tree1)
4530 got_object_tree_close(tree1);
4531 if (tree2)
4532 got_object_tree_close(tree2);
4533 if (fd1 != -1 && close(fd1) == -1 && err == NULL)
4534 err = got_error_from_errno("close");
4535 if (fd2 != -1 && close(fd2) == -1 && err == NULL)
4536 err = got_error_from_errno("close");
4537 if (f1 && fclose(f1) == EOF && err == NULL)
4538 err = got_error_from_errno("fclose");
4539 if (f2 && fclose(f2) == EOF && err == NULL)
4540 err = got_error_from_errno("fclose");
4541 free(tree_id1);
4542 return err;
4543 }
4544
4545 static const struct got_error *
4546 add_line_metadata(struct got_diff_line **lines, size_t *nlines,
4547 off_t off, uint8_t type)
4548 {
4549 struct got_diff_line *p;
4550
4551 p = reallocarray(*lines, *nlines + 1, sizeof(**lines));
4552 if (p == NULL)
4553 return got_error_from_errno("reallocarray");
4554 *lines = p;
4555 (*lines)[*nlines].offset = off;
4556 (*lines)[*nlines].type = type;
4557 (*nlines)++;
4558
4559 return NULL;
4560 }
4561
4562 static const struct got_error *
4563 write_commit_info(struct got_diff_line **lines, size_t *nlines,
4564 struct got_object_id *commit_id, struct got_reflist_head *refs,
4565 struct got_repository *repo, int ignore_ws, int force_text_diff,
4566 FILE *outfile)
4567 {
4568 const struct got_error *err = NULL;
4569 char datebuf[26], *datestr;
4570 struct got_commit_object *commit;
4571 char *id_str = NULL, *logmsg = NULL, *s = NULL, *line;
4572 time_t committer_time;
4573 const char *author, *committer;
4574 char *refs_str = NULL;
4575 struct got_pathlist_head changed_paths;
4576 struct got_pathlist_entry *pe;
4577 struct got_diffstat_cb_arg dsa = { 0, 0, 0, 0, 0, 0, &changed_paths,
4578 ignore_ws, force_text_diff, tog_diff_algo };
4579 off_t outoff = 0;
4580 int n;
4581
4582 TAILQ_INIT(&changed_paths);
4583
4584 if (refs) {
4585 err = build_refs_str(&refs_str, refs, commit_id, repo);
4586 if (err)
4587 return err;
4588 }
4589
4590 err = got_object_open_as_commit(&commit, repo, commit_id);
4591 if (err)
4592 return err;
4593
4594 err = got_object_id_str(&id_str, commit_id);
4595 if (err) {
4596 err = got_error_from_errno("got_object_id_str");
4597 goto done;
4598 }
4599
4600 err = add_line_metadata(lines, nlines, 0, GOT_DIFF_LINE_NONE);
4601 if (err)
4602 goto done;
4603
4604 n = fprintf(outfile, "commit %s%s%s%s\n", id_str, refs_str ? " (" : "",
4605 refs_str ? refs_str : "", refs_str ? ")" : "");
4606 if (n < 0) {
4607 err = got_error_from_errno("fprintf");
4608 goto done;
4609 }
4610 outoff += n;
4611 err = add_line_metadata(lines, nlines, outoff, GOT_DIFF_LINE_META);
4612 if (err)
4613 goto done;
4614
4615 n = fprintf(outfile, "from: %s\n",
4616 got_object_commit_get_author(commit));
4617 if (n < 0) {
4618 err = got_error_from_errno("fprintf");
4619 goto done;
4620 }
4621 outoff += n;
4622 err = add_line_metadata(lines, nlines, outoff, GOT_DIFF_LINE_AUTHOR);
4623 if (err)
4624 goto done;
4625
4626 committer_time = got_object_commit_get_committer_time(commit);
4627 datestr = get_datestr(&committer_time, datebuf);
4628 if (datestr) {
4629 n = fprintf(outfile, "date: %s UTC\n", datestr);
4630 if (n < 0) {
4631 err = got_error_from_errno("fprintf");
4632 goto done;
4633 }
4634 outoff += n;
4635 err = add_line_metadata(lines, nlines, outoff,
4636 GOT_DIFF_LINE_DATE);
4637 if (err)
4638 goto done;
4639 }
4640 author = got_object_commit_get_author(commit);
4641 committer = got_object_commit_get_committer(commit);
4642 if (strcmp(author, committer) != 0) {
4643 n = fprintf(outfile, "via: %s\n", committer);
4644 if (n < 0) {
4645 err = got_error_from_errno("fprintf");
4646 goto done;
4647 }
4648 outoff += n;
4649 err = add_line_metadata(lines, nlines, outoff,
4650 GOT_DIFF_LINE_AUTHOR);
4651 if (err)
4652 goto done;
4653 }
4654 if (got_object_commit_get_nparents(commit) > 1) {
4655 const struct got_object_id_queue *parent_ids;
4656 struct got_object_qid *qid;
4657 int pn = 1;
4658 parent_ids = got_object_commit_get_parent_ids(commit);
4659 STAILQ_FOREACH(qid, parent_ids, entry) {
4660 err = got_object_id_str(&id_str, &qid->id);
4661 if (err)
4662 goto done;
4663 n = fprintf(outfile, "parent %d: %s\n", pn++, id_str);
4664 if (n < 0) {
4665 err = got_error_from_errno("fprintf");
4666 goto done;
4667 }
4668 outoff += n;
4669 err = add_line_metadata(lines, nlines, outoff,
4670 GOT_DIFF_LINE_META);
4671 if (err)
4672 goto done;
4673 free(id_str);
4674 id_str = NULL;
4675 }
4676 }
4677
4678 err = got_object_commit_get_logmsg(&logmsg, commit);
4679 if (err)
4680 goto done;
4681 s = logmsg;
4682 while ((line = strsep(&s, "\n")) != NULL) {
4683 n = fprintf(outfile, "%s\n", line);
4684 if (n < 0) {
4685 err = got_error_from_errno("fprintf");
4686 goto done;
4687 }
4688 outoff += n;
4689 err = add_line_metadata(lines, nlines, outoff,
4690 GOT_DIFF_LINE_LOGMSG);
4691 if (err)
4692 goto done;
4693 }
4694
4695 err = get_changed_paths(&changed_paths, commit, repo, &dsa);
4696 if (err)
4697 goto done;
4698
4699 TAILQ_FOREACH(pe, &changed_paths, entry) {
4700 struct got_diff_changed_path *cp = pe->data;
4701 int pad = dsa.max_path_len - pe->path_len + 1;
4702
4703 n = fprintf(outfile, "%c %s%*c | %*d+ %*d-\n", cp->status,
4704 pe->path, pad, ' ', dsa.add_cols + 1, cp->add,
4705 dsa.rm_cols + 1, cp->rm);
4706 if (n < 0) {
4707 err = got_error_from_errno("fprintf");
4708 goto done;
4709 }
4710 outoff += n;
4711 err = add_line_metadata(lines, nlines, outoff,
4712 GOT_DIFF_LINE_CHANGES);
4713 if (err)
4714 goto done;
4715 free((char *)pe->path);
4716 free(pe->data);
4717 }
4718
4719 fputc('\n', outfile);
4720 outoff++;
4721 err = add_line_metadata(lines, nlines, outoff, GOT_DIFF_LINE_NONE);
4722 if (err)
4723 goto done;
4724
4725 n = fprintf(outfile,
4726 "%d file%s changed, %d insertions(+), %d deletions(-)\n",
4727 dsa.nfiles, dsa.nfiles > 1 ? "s" : "", dsa.ins, dsa.del);
4728 if (n < 0) {
4729 err = got_error_from_errno("fprintf");
4730 goto done;
4731 }
4732 outoff += n;
4733 err = add_line_metadata(lines, nlines, outoff, GOT_DIFF_LINE_NONE);
4734 if (err)
4735 goto done;
4736
4737 fputc('\n', outfile);
4738 outoff++;
4739 err = add_line_metadata(lines, nlines, outoff, GOT_DIFF_LINE_NONE);
4740 done:
4741 got_pathlist_free(&changed_paths);
4742 free(id_str);
4743 free(logmsg);
4744 free(refs_str);
4745 got_object_commit_close(commit);
4746 if (err) {
4747 free(*lines);
4748 *lines = NULL;
4749 *nlines = 0;
4750 }
4751 return err;
4752 }
4753
4754 static const struct got_error *
4755 create_diff(struct tog_diff_view_state *s)
4756 {
4757 const struct got_error *err = NULL;
4758 FILE *f = NULL;
4759 int obj_type;
4760
4761 free(s->lines);
4762 s->lines = malloc(sizeof(*s->lines));
4763 if (s->lines == NULL)
4764 return got_error_from_errno("malloc");
4765 s->nlines = 0;
4766
4767 f = got_opentemp();
4768 if (f == NULL) {
4769 err = got_error_from_errno("got_opentemp");
4770 goto done;
4771 }
4772 if (s->f && fclose(s->f) == EOF) {
4773 err = got_error_from_errno("fclose");
4774 goto done;
4775 }
4776 s->f = f;
4777
4778 if (s->id1)
4779 err = got_object_get_type(&obj_type, s->repo, s->id1);
4780 else
4781 err = got_object_get_type(&obj_type, s->repo, s->id2);
4782 if (err)
4783 goto done;
4784
4785 switch (obj_type) {
4786 case GOT_OBJ_TYPE_BLOB:
4787 err = got_diff_objects_as_blobs(&s->lines, &s->nlines,
4788 s->f1, s->f2, s->fd1, s->fd2, s->id1, s->id2,
4789 s->label1, s->label2, tog_diff_algo, s->diff_context,
4790 s->ignore_whitespace, s->force_text_diff, s->repo, s->f);
4791 break;
4792 case GOT_OBJ_TYPE_TREE:
4793 err = got_diff_objects_as_trees(&s->lines, &s->nlines,
4794 s->f1, s->f2, s->fd1, s->fd2, s->id1, s->id2, NULL, "", "",
4795 tog_diff_algo, s->diff_context, s->ignore_whitespace,
4796 s->force_text_diff, s->repo, s->f);
4797 break;
4798 case GOT_OBJ_TYPE_COMMIT: {
4799 const struct got_object_id_queue *parent_ids;
4800 struct got_object_qid *pid;
4801 struct got_commit_object *commit2;
4802 struct got_reflist_head *refs;
4803
4804 err = got_object_open_as_commit(&commit2, s->repo, s->id2);
4805 if (err)
4806 goto done;
4807 refs = got_reflist_object_id_map_lookup(tog_refs_idmap, s->id2);
4808 /* Show commit info if we're diffing to a parent/root commit. */
4809 if (s->id1 == NULL) {
4810 err = write_commit_info(&s->lines, &s->nlines, s->id2,
4811 refs, s->repo, s->ignore_whitespace,
4812 s->force_text_diff, s->f);
4813 if (err)
4814 goto done;
4815 } else {
4816 parent_ids = got_object_commit_get_parent_ids(commit2);
4817 STAILQ_FOREACH(pid, parent_ids, entry) {
4818 if (got_object_id_cmp(s->id1, &pid->id) == 0) {
4819 err = write_commit_info(&s->lines,
4820 &s->nlines, s->id2, refs, s->repo,
4821 s->ignore_whitespace,
4822 s->force_text_diff, s->f);
4823 if (err)
4824 goto done;
4825 break;
4826 }
4827 }
4828 }
4829 got_object_commit_close(commit2);
4830
4831 err = got_diff_objects_as_commits(&s->lines, &s->nlines,
4832 s->f1, s->f2, s->fd1, s->fd2, s->id1, s->id2, NULL,
4833 tog_diff_algo, s->diff_context, s->ignore_whitespace,
4834 s->force_text_diff, s->repo, s->f);
4835 break;
4836 }
4837 default:
4838 err = got_error(GOT_ERR_OBJ_TYPE);
4839 break;
4840 }
4841 done:
4842 if (s->f && fflush(s->f) != 0 && err == NULL)
4843 err = got_error_from_errno("fflush");
4844 return err;
4845 }
4846
4847 static void
4848 diff_view_indicate_progress(struct tog_view *view)
4849 {
4850 mvwaddstr(view->window, 0, 0, "diffing...");
4851 update_panels();
4852 doupdate();
4853 }
4854
4855 static const struct got_error *
4856 search_start_diff_view(struct tog_view *view)
4857 {
4858 struct tog_diff_view_state *s = &view->state.diff;
4859
4860 s->matched_line = 0;
4861 return NULL;
4862 }
4863
4864 static void
4865 search_setup_diff_view(struct tog_view *view, FILE **f, off_t **line_offsets,
4866 size_t *nlines, int **first, int **last, int **match, int **selected)
4867 {
4868 struct tog_diff_view_state *s = &view->state.diff;
4869
4870 *f = s->f;
4871 *nlines = s->nlines;
4872 *line_offsets = NULL;
4873 *match = &s->matched_line;
4874 *first = &s->first_displayed_line;
4875 *last = &s->last_displayed_line;
4876 *selected = &s->selected_line;
4877 }
4878
4879 static const struct got_error *
4880 search_next_view_match(struct tog_view *view)
4881 {
4882 const struct got_error *err = NULL;
4883 FILE *f;
4884 int lineno;
4885 char *line = NULL;
4886 size_t linesize = 0;
4887 ssize_t linelen;
4888 off_t *line_offsets;
4889 size_t nlines = 0;
4890 int *first, *last, *match, *selected;
4891
4892 if (!view->search_setup)
4893 return got_error_msg(GOT_ERR_NOT_IMPL,
4894 "view search not supported");
4895 view->search_setup(view, &f, &line_offsets, &nlines, &first, &last,
4896 &match, &selected);
4897
4898 if (!view->searching) {
4899 view->search_next_done = TOG_SEARCH_HAVE_MORE;
4900 return NULL;
4901 }
4902
4903 if (*match) {
4904 if (view->searching == TOG_SEARCH_FORWARD)
4905 lineno = *match + 1;
4906 else
4907 lineno = *match - 1;
4908 } else
4909 lineno = *first - 1 + *selected;
4910
4911 while (1) {
4912 off_t offset;
4913
4914 if (lineno <= 0 || lineno > nlines) {
4915 if (*match == 0) {
4916 view->search_next_done = TOG_SEARCH_HAVE_MORE;
4917 break;
4918 }
4919
4920 if (view->searching == TOG_SEARCH_FORWARD)
4921 lineno = 1;
4922 else
4923 lineno = nlines;
4924 }
4925
4926 offset = view->type == TOG_VIEW_DIFF ?
4927 view->state.diff.lines[lineno - 1].offset :
4928 line_offsets[lineno - 1];
4929 if (fseeko(f, offset, SEEK_SET) != 0) {
4930 free(line);
4931 return got_error_from_errno("fseeko");
4932 }
4933 linelen = getline(&line, &linesize, f);
4934 if (linelen != -1) {
4935 char *exstr;
4936 err = expand_tab(&exstr, line);
4937 if (err)
4938 break;
4939 if (match_line(exstr, &view->regex, 1,
4940 &view->regmatch)) {
4941 view->search_next_done = TOG_SEARCH_HAVE_MORE;
4942 *match = lineno;
4943 free(exstr);
4944 break;
4945 }
4946 free(exstr);
4947 }
4948 if (view->searching == TOG_SEARCH_FORWARD)
4949 lineno++;
4950 else
4951 lineno--;
4952 }
4953 free(line);
4954
4955 if (*match) {
4956 *first = *match;
4957 *selected = 1;
4958 }
4959
4960 return err;
4961 }
4962
4963 static const struct got_error *
4964 close_diff_view(struct tog_view *view)
4965 {
4966 const struct got_error *err = NULL;
4967 struct tog_diff_view_state *s = &view->state.diff;
4968
4969 free(s->id1);
4970 s->id1 = NULL;
4971 free(s->id2);
4972 s->id2 = NULL;
4973 if (s->f && fclose(s->f) == EOF)
4974 err = got_error_from_errno("fclose");
4975 s->f = NULL;
4976 if (s->f1 && fclose(s->f1) == EOF && err == NULL)
4977 err = got_error_from_errno("fclose");
4978 s->f1 = NULL;
4979 if (s->f2 && fclose(s->f2) == EOF && err == NULL)
4980 err = got_error_from_errno("fclose");
4981 s->f2 = NULL;
4982 if (s->fd1 != -1 && close(s->fd1) == -1 && err == NULL)
4983 err = got_error_from_errno("close");
4984 s->fd1 = -1;
4985 if (s->fd2 != -1 && close(s->fd2) == -1 && err == NULL)
4986 err = got_error_from_errno("close");
4987 s->fd2 = -1;
4988 free(s->lines);
4989 s->lines = NULL;
4990 s->nlines = 0;
4991 return err;
4992 }
4993
4994 static const struct got_error *
4995 open_diff_view(struct tog_view *view, struct got_object_id *id1,
4996 struct got_object_id *id2, const char *label1, const char *label2,
4997 int diff_context, int ignore_whitespace, int force_text_diff,
4998 struct tog_view *parent_view, struct got_repository *repo)
4999 {
5000 const struct got_error *err;
5001 struct tog_diff_view_state *s = &view->state.diff;
5002
5003 memset(s, 0, sizeof(*s));
5004 s->fd1 = -1;
5005 s->fd2 = -1;
5006
5007 if (id1 != NULL && id2 != NULL) {
5008 int type1, type2;
5009 err = got_object_get_type(&type1, repo, id1);
5010 if (err)
5011 return err;
5012 err = got_object_get_type(&type2, repo, id2);
5013 if (err)
5014 return err;
5015
5016 if (type1 != type2)
5017 return got_error(GOT_ERR_OBJ_TYPE);
5018 }
5019 s->first_displayed_line = 1;
5020 s->last_displayed_line = view->nlines;
5021 s->selected_line = 1;
5022 s->repo = repo;
5023 s->id1 = id1;
5024 s->id2 = id2;
5025 s->label1 = label1;
5026 s->label2 = label2;
5027
5028 if (id1) {
5029 s->id1 = got_object_id_dup(id1);
5030 if (s->id1 == NULL)
5031 return got_error_from_errno("got_object_id_dup");
5032 } else
5033 s->id1 = NULL;
5034
5035 s->id2 = got_object_id_dup(id2);
5036 if (s->id2 == NULL) {
5037 err = got_error_from_errno("got_object_id_dup");
5038 goto done;
5039 }
5040
5041 s->f1 = got_opentemp();
5042 if (s->f1 == NULL) {
5043 err = got_error_from_errno("got_opentemp");
5044 goto done;
5045 }
5046
5047 s->f2 = got_opentemp();
5048 if (s->f2 == NULL) {
5049 err = got_error_from_errno("got_opentemp");
5050 goto done;
5051 }
5052
5053 s->fd1 = got_opentempfd();
5054 if (s->fd1 == -1) {
5055 err = got_error_from_errno("got_opentempfd");
5056 goto done;
5057 }
5058
5059 s->fd2 = got_opentempfd();
5060 if (s->fd2 == -1) {
5061 err = got_error_from_errno("got_opentempfd");
5062 goto done;
5063 }
5064
5065 s->first_displayed_line = 1;
5066 s->last_displayed_line = view->nlines;
5067 s->diff_context = diff_context;
5068 s->ignore_whitespace = ignore_whitespace;
5069 s->force_text_diff = force_text_diff;
5070 s->parent_view = parent_view;
5071 s->repo = repo;
5072
5073 if (has_colors() && getenv("TOG_COLORS") != NULL) {
5074 int rc;
5075
5076 rc = init_pair(GOT_DIFF_LINE_MINUS,
5077 get_color_value("TOG_COLOR_DIFF_MINUS"), -1);
5078 if (rc != ERR)
5079 rc = init_pair(GOT_DIFF_LINE_PLUS,
5080 get_color_value("TOG_COLOR_DIFF_PLUS"), -1);
5081 if (rc != ERR)
5082 rc = init_pair(GOT_DIFF_LINE_HUNK,
5083 get_color_value("TOG_COLOR_DIFF_CHUNK_HEADER"), -1);
5084 if (rc != ERR)
5085 rc = init_pair(GOT_DIFF_LINE_META,
5086 get_color_value("TOG_COLOR_DIFF_META"), -1);
5087 if (rc != ERR)
5088 rc = init_pair(GOT_DIFF_LINE_CHANGES,
5089 get_color_value("TOG_COLOR_DIFF_META"), -1);
5090 if (rc != ERR)
5091 rc = init_pair(GOT_DIFF_LINE_BLOB_MIN,
5092 get_color_value("TOG_COLOR_DIFF_META"), -1);
5093 if (rc != ERR)
5094 rc = init_pair(GOT_DIFF_LINE_BLOB_PLUS,
5095 get_color_value("TOG_COLOR_DIFF_META"), -1);
5096 if (rc != ERR)
5097 rc = init_pair(GOT_DIFF_LINE_AUTHOR,
5098 get_color_value("TOG_COLOR_AUTHOR"), -1);
5099 if (rc != ERR)
5100 rc = init_pair(GOT_DIFF_LINE_DATE,
5101 get_color_value("TOG_COLOR_DATE"), -1);
5102 if (rc == ERR) {
5103 err = got_error(GOT_ERR_RANGE);
5104 goto done;
5105 }
5106 }
5107
5108 if (parent_view && parent_view->type == TOG_VIEW_LOG &&
5109 view_is_splitscreen(view))
5110 show_log_view(parent_view); /* draw border */
5111 diff_view_indicate_progress(view);
5112
5113 err = create_diff(s);
5114
5115 view->show = show_diff_view;
5116 view->input = input_diff_view;
5117 view->reset = reset_diff_view;
5118 view->close = close_diff_view;
5119 view->search_start = search_start_diff_view;
5120 view->search_setup = search_setup_diff_view;
5121 view->search_next = search_next_view_match;
5122 done:
5123 if (err)
5124 close_diff_view(view);
5125 return err;
5126 }
5127
5128 static const struct got_error *
5129 show_diff_view(struct tog_view *view)
5130 {
5131 const struct got_error *err;
5132 struct tog_diff_view_state *s = &view->state.diff;
5133 char *id_str1 = NULL, *id_str2, *header;
5134 const char *label1, *label2;
5135
5136 if (s->id1) {
5137 err = got_object_id_str(&id_str1, s->id1);
5138 if (err)
5139 return err;
5140 label1 = s->label1 ? s->label1 : id_str1;
5141 } else
5142 label1 = "/dev/null";
5143
5144 err = got_object_id_str(&id_str2, s->id2);
5145 if (err)
5146 return err;
5147 label2 = s->label2 ? s->label2 : id_str2;
5148
5149 if (asprintf(&header, "diff %s %s", label1, label2) == -1) {
5150 err = got_error_from_errno("asprintf");
5151 free(id_str1);
5152 free(id_str2);
5153 return err;
5154 }
5155 free(id_str1);
5156 free(id_str2);
5157
5158 err = draw_file(view, header);
5159 free(header);
5160 return err;
5161 }
5162
5163 static const struct got_error *
5164 set_selected_commit(struct tog_diff_view_state *s,
5165 struct commit_queue_entry *entry)
5166 {
5167 const struct got_error *err;
5168 const struct got_object_id_queue *parent_ids;
5169 struct got_commit_object *selected_commit;
5170 struct got_object_qid *pid;
5171
5172 free(s->id2);
5173 s->id2 = got_object_id_dup(entry->id);
5174 if (s->id2 == NULL)
5175 return got_error_from_errno("got_object_id_dup");
5176
5177 err = got_object_open_as_commit(&selected_commit, s->repo, entry->id);
5178 if (err)
5179 return err;
5180 parent_ids = got_object_commit_get_parent_ids(selected_commit);
5181 free(s->id1);
5182 pid = STAILQ_FIRST(parent_ids);
5183 s->id1 = pid ? got_object_id_dup(&pid->id) : NULL;
5184 got_object_commit_close(selected_commit);
5185 return NULL;
5186 }
5187
5188 static const struct got_error *
5189 reset_diff_view(struct tog_view *view)
5190 {
5191 struct tog_diff_view_state *s = &view->state.diff;
5192
5193 view->count = 0;
5194 wclear(view->window);
5195 s->first_displayed_line = 1;
5196 s->last_displayed_line = view->nlines;
5197 s->matched_line = 0;
5198 diff_view_indicate_progress(view);
5199 return create_diff(s);
5200 }
5201
5202 static void
5203 diff_prev_index(struct tog_diff_view_state *s, enum got_diff_line_type type)
5204 {
5205 int start, i;
5206
5207 i = start = s->first_displayed_line - 1;
5208
5209 while (s->lines[i].type != type) {
5210 if (i == 0)
5211 i = s->nlines - 1;
5212 if (--i == start)
5213 return; /* do nothing, requested type not in file */
5214 }
5215
5216 s->selected_line = 1;
5217 s->first_displayed_line = i;
5218 }
5219
5220 static void
5221 diff_next_index(struct tog_diff_view_state *s, enum got_diff_line_type type)
5222 {
5223 int start, i;
5224
5225 i = start = s->first_displayed_line + 1;
5226
5227 while (s->lines[i].type != type) {
5228 if (i == s->nlines - 1)
5229 i = 0;
5230 if (++i == start)
5231 return; /* do nothing, requested type not in file */
5232 }
5233
5234 s->selected_line = 1;
5235 s->first_displayed_line = i;
5236 }
5237
5238 static struct got_object_id *get_selected_commit_id(struct tog_blame_line *,
5239 int, int, int);
5240 static struct got_object_id *get_annotation_for_line(struct tog_blame_line *,
5241 int, int);
5242
5243 static const struct got_error *
5244 input_diff_view(struct tog_view **new_view, struct tog_view *view, int ch)
5245 {
5246 const struct got_error *err = NULL;
5247 struct tog_diff_view_state *s = &view->state.diff;
5248 struct tog_log_view_state *ls;
5249 struct commit_queue_entry *old_selected_entry;
5250 char *line = NULL;
5251 size_t linesize = 0;
5252 ssize_t linelen;
5253 int i, nscroll = view->nlines - 1, up = 0;
5254
5255 s->lineno = s->first_displayed_line - 1 + s->selected_line;
5256
5257 switch (ch) {
5258 case '0':
5259 view->x = 0;
5260 break;
5261 case '$':
5262 view->x = MAX(view->maxx - view->ncols / 3, 0);
5263 view->count = 0;
5264 break;
5265 case KEY_RIGHT:
5266 case 'l':
5267 if (view->x + view->ncols / 3 < view->maxx)
5268 view->x += 2; /* move two columns right */
5269 else
5270 view->count = 0;
5271 break;
5272 case KEY_LEFT:
5273 case 'h':
5274 view->x -= MIN(view->x, 2); /* move two columns back */
5275 if (view->x <= 0)
5276 view->count = 0;
5277 break;
5278 case 'a':
5279 case 'w':
5280 if (ch == 'a')
5281 s->force_text_diff = !s->force_text_diff;
5282 else if (ch == 'w')
5283 s->ignore_whitespace = !s->ignore_whitespace;
5284 err = reset_diff_view(view);
5285 break;
5286 case 'g':
5287 case KEY_HOME:
5288 s->first_displayed_line = 1;
5289 view->count = 0;
5290 break;
5291 case 'G':
5292 case KEY_END:
5293 view->count = 0;
5294 if (s->eof)
5295 break;
5296
5297 s->first_displayed_line = (s->nlines - view->nlines) + 2;
5298 s->eof = 1;
5299 break;
5300 case 'k':
5301 case KEY_UP:
5302 case CTRL('p'):
5303 if (s->first_displayed_line > 1)
5304 s->first_displayed_line--;
5305 else
5306 view->count = 0;
5307 break;
5308 case CTRL('u'):
5309 case 'u':
5310 nscroll /= 2;
5311 /* FALL THROUGH */
5312 case KEY_PPAGE:
5313 case CTRL('b'):
5314 case 'b':
5315 if (s->first_displayed_line == 1) {
5316 view->count = 0;
5317 break;
5318 }
5319 i = 0;
5320 while (i++ < nscroll && s->first_displayed_line > 1)
5321 s->first_displayed_line--;
5322 break;
5323 case 'j':
5324 case KEY_DOWN:
5325 case CTRL('n'):
5326 if (!s->eof)
5327 s->first_displayed_line++;
5328 else
5329 view->count = 0;
5330 break;
5331 case CTRL('d'):
5332 case 'd':
5333 nscroll /= 2;
5334 /* FALL THROUGH */
5335 case KEY_NPAGE:
5336 case CTRL('f'):
5337 case 'f':
5338 case ' ':
5339 if (s->eof) {
5340 view->count = 0;
5341 break;
5342 }
5343 i = 0;
5344 while (!s->eof && i++ < nscroll) {
5345 linelen = getline(&line, &linesize, s->f);
5346 s->first_displayed_line++;
5347 if (linelen == -1) {
5348 if (feof(s->f)) {
5349 s->eof = 1;
5350 } else
5351 err = got_ferror(s->f, GOT_ERR_IO);
5352 break;
5353 }
5354 }
5355 free(line);
5356 break;
5357 case '(':
5358 diff_prev_index(s, GOT_DIFF_LINE_BLOB_MIN);
5359 break;
5360 case ')':
5361 diff_next_index(s, GOT_DIFF_LINE_BLOB_MIN);
5362 break;
5363 case '{':
5364 diff_prev_index(s, GOT_DIFF_LINE_HUNK);
5365 break;
5366 case '}':
5367 diff_next_index(s, GOT_DIFF_LINE_HUNK);
5368 break;
5369 case '[':
5370 if (s->diff_context > 0) {
5371 s->diff_context--;
5372 s->matched_line = 0;
5373 diff_view_indicate_progress(view);
5374 err = create_diff(s);
5375 if (s->first_displayed_line + view->nlines - 1 >
5376 s->nlines) {
5377 s->first_displayed_line = 1;
5378 s->last_displayed_line = view->nlines;
5379 }
5380 } else
5381 view->count = 0;
5382 break;
5383 case ']':
5384 if (s->diff_context < GOT_DIFF_MAX_CONTEXT) {
5385 s->diff_context++;
5386 s->matched_line = 0;
5387 diff_view_indicate_progress(view);
5388 err = create_diff(s);
5389 } else
5390 view->count = 0;
5391 break;
5392 case '<':
5393 case ',':
5394 case 'K':
5395 up = 1;
5396 /* FALL THROUGH */
5397 case '>':
5398 case '.':
5399 case 'J':
5400 if (s->parent_view == NULL) {
5401 view->count = 0;
5402 break;
5403 }
5404 s->parent_view->count = view->count;
5405
5406 if (s->parent_view->type == TOG_VIEW_LOG) {
5407 ls = &s->parent_view->state.log;
5408 old_selected_entry = ls->selected_entry;
5409
5410 err = input_log_view(NULL, s->parent_view,
5411 up ? KEY_UP : KEY_DOWN);
5412 if (err)
5413 break;
5414 view->count = s->parent_view->count;
5415
5416 if (old_selected_entry == ls->selected_entry)
5417 break;
5418
5419 err = set_selected_commit(s, ls->selected_entry);
5420 if (err)
5421 break;
5422 } else if (s->parent_view->type == TOG_VIEW_BLAME) {
5423 struct tog_blame_view_state *bs;
5424 struct got_object_id *id, *prev_id;
5425
5426 bs = &s->parent_view->state.blame;
5427 prev_id = get_annotation_for_line(bs->blame.lines,
5428 bs->blame.nlines, bs->last_diffed_line);
5429
5430 err = input_blame_view(&view, s->parent_view,
5431 up ? KEY_UP : KEY_DOWN);
5432 if (err)
5433 break;
5434 view->count = s->parent_view->count;
5435
5436 if (prev_id == NULL)
5437 break;
5438 id = get_selected_commit_id(bs->blame.lines,
5439 bs->blame.nlines, bs->first_displayed_line,
5440 bs->selected_line);
5441 if (id == NULL)
5442 break;
5443
5444 if (!got_object_id_cmp(prev_id, id))
5445 break;
5446
5447 err = input_blame_view(&view, s->parent_view, KEY_ENTER);
5448 if (err)
5449 break;
5450 }
5451 s->first_displayed_line = 1;
5452 s->last_displayed_line = view->nlines;
5453 s->matched_line = 0;
5454 view->x = 0;
5455
5456 diff_view_indicate_progress(view);
5457 err = create_diff(s);
5458 break;
5459 default:
5460 view->count = 0;
5461 break;
5462 }
5463
5464 return err;
5465 }
5466
5467 static const struct got_error *
5468 cmd_diff(int argc, char *argv[])
5469 {
5470 const struct got_error *error = NULL;
5471 struct got_repository *repo = NULL;
5472 struct got_worktree *worktree = NULL;
5473 struct got_object_id *id1 = NULL, *id2 = NULL;
5474 char *repo_path = NULL, *cwd = NULL;
5475 char *id_str1 = NULL, *id_str2 = NULL;
5476 char *label1 = NULL, *label2 = NULL;
5477 int diff_context = 3, ignore_whitespace = 0;
5478 int ch, force_text_diff = 0;
5479 const char *errstr;
5480 struct tog_view *view;
5481 int *pack_fds = NULL;
5482
5483 while ((ch = getopt(argc, argv, "aC:r:w")) != -1) {
5484 switch (ch) {
5485 case 'a':
5486 force_text_diff = 1;
5487 break;
5488 case 'C':
5489 diff_context = strtonum(optarg, 0, GOT_DIFF_MAX_CONTEXT,
5490 &errstr);
5491 if (errstr != NULL)
5492 errx(1, "number of context lines is %s: %s",
5493 errstr, errstr);
5494 break;
5495 case 'r':
5496 repo_path = realpath(optarg, NULL);
5497 if (repo_path == NULL)
5498 return got_error_from_errno2("realpath",
5499 optarg);
5500 got_path_strip_trailing_slashes(repo_path);
5501 break;
5502 case 'w':
5503 ignore_whitespace = 1;
5504 break;
5505 default:
5506 usage_diff();
5507 /* NOTREACHED */
5508 }
5509 }
5510
5511 argc -= optind;
5512 argv += optind;
5513
5514 if (argc == 0) {
5515 usage_diff(); /* TODO show local worktree changes */
5516 } else if (argc == 2) {
5517 id_str1 = argv[0];
5518 id_str2 = argv[1];
5519 } else
5520 usage_diff();
5521
5522 error = got_repo_pack_fds_open(&pack_fds);
5523 if (error)
5524 goto done;
5525
5526 if (repo_path == NULL) {
5527 cwd = getcwd(NULL, 0);
5528 if (cwd == NULL)
5529 return got_error_from_errno("getcwd");
5530 error = got_worktree_open(&worktree, cwd);
5531 if (error && error->code != GOT_ERR_NOT_WORKTREE)
5532 goto done;
5533 if (worktree)
5534 repo_path =
5535 strdup(got_worktree_get_repo_path(worktree));
5536 else
5537 repo_path = strdup(cwd);
5538 if (repo_path == NULL) {
5539 error = got_error_from_errno("strdup");
5540 goto done;
5541 }
5542 }
5543
5544 error = got_repo_open(&repo, repo_path, NULL, pack_fds);
5545 if (error)
5546 goto done;
5547
5548 init_curses();
5549
5550 error = apply_unveil(got_repo_get_path(repo), NULL);
5551 if (error)
5552 goto done;
5553
5554 error = tog_load_refs(repo, 0);
5555 if (error)
5556 goto done;
5557
5558 error = got_repo_match_object_id(&id1, &label1, id_str1,
5559 GOT_OBJ_TYPE_ANY, &tog_refs, repo);
5560 if (error)
5561 goto done;
5562
5563 error = got_repo_match_object_id(&id2, &label2, id_str2,
5564 GOT_OBJ_TYPE_ANY, &tog_refs, repo);
5565 if (error)
5566 goto done;
5567
5568 view = view_open(0, 0, 0, 0, TOG_VIEW_DIFF);
5569 if (view == NULL) {
5570 error = got_error_from_errno("view_open");
5571 goto done;
5572 }
5573 error = open_diff_view(view, id1, id2, label1, label2, diff_context,
5574 ignore_whitespace, force_text_diff, NULL, repo);
5575 if (error)
5576 goto done;
5577 error = view_loop(view);
5578 done:
5579 free(label1);
5580 free(label2);
5581 free(repo_path);
5582 free(cwd);
5583 if (repo) {
5584 const struct got_error *close_err = got_repo_close(repo);
5585 if (error == NULL)
5586 error = close_err;
5587 }
5588 if (worktree)
5589 got_worktree_close(worktree);
5590 if (pack_fds) {
5591 const struct got_error *pack_err =
5592 got_repo_pack_fds_close(pack_fds);
5593 if (error == NULL)
5594 error = pack_err;
5595 }
5596 tog_free_refs();
5597 return error;
5598 }
5599
5600 __dead static void
5601 usage_blame(void)
5602 {
5603 endwin();
5604 fprintf(stderr,
5605 "usage: %s blame [-c commit] [-r repository-path] path\n",
5606 getprogname());
5607 exit(1);
5608 }
5609
5610 struct tog_blame_line {
5611 int annotated;
5612 struct got_object_id *id;
5613 };
5614
5615 static const struct got_error *
5616 draw_blame(struct tog_view *view)
5617 {
5618 struct tog_blame_view_state *s = &view->state.blame;
5619 struct tog_blame *blame = &s->blame;
5620 regmatch_t *regmatch = &view->regmatch;
5621 const struct got_error *err;
5622 int lineno = 0, nprinted = 0;
5623 char *line = NULL;
5624 size_t linesize = 0;
5625 ssize_t linelen;
5626 wchar_t *wline;
5627 int width;
5628 struct tog_blame_line *blame_line;
5629 struct got_object_id *prev_id = NULL;
5630 char *id_str;
5631 struct tog_color *tc;
5632
5633 err = got_object_id_str(&id_str, &s->blamed_commit->id);
5634 if (err)
5635 return err;
5636
5637 rewind(blame->f);
5638 werase(view->window);
5639
5640 if (asprintf(&line, "commit %s", id_str) == -1) {
5641 err = got_error_from_errno("asprintf");
5642 free(id_str);
5643 return err;
5644 }
5645
5646 err = format_line(&wline, &width, NULL, line, 0, view->ncols, 0, 0);
5647 free(line);
5648 line = NULL;
5649 if (err)
5650 return err;
5651 if (view_needs_focus_indication(view))
5652 wstandout(view->window);
5653 tc = get_color(&s->colors, TOG_COLOR_COMMIT);
5654 if (tc)
5655 wattr_on(view->window, COLOR_PAIR(tc->colorpair), NULL);
5656 waddwstr(view->window, wline);
5657 while (width++ < view->ncols)
5658 waddch(view->window, ' ');
5659 if (tc)
5660 wattr_off(view->window, COLOR_PAIR(tc->colorpair), NULL);
5661 if (view_needs_focus_indication(view))
5662 wstandend(view->window);
5663 free(wline);
5664 wline = NULL;
5665
5666 if (view->gline > blame->nlines)
5667 view->gline = blame->nlines;
5668
5669 if (asprintf(&line, "[%d/%d] %s%s", view->gline ? view->gline :
5670 s->first_displayed_line - 1 + s->selected_line, blame->nlines,
5671 s->blame_complete ? "" : "annotating... ", s->path) == -1) {
5672 free(id_str);
5673 return got_error_from_errno("asprintf");
5674 }
5675 free(id_str);
5676 err = format_line(&wline, &width, NULL, line, 0, view->ncols, 0, 0);
5677 free(line);
5678 line = NULL;
5679 if (err)
5680 return err;
5681 waddwstr(view->window, wline);
5682 free(wline);
5683 wline = NULL;
5684 if (width < view->ncols - 1)
5685 waddch(view->window, '\n');
5686
5687 s->eof = 0;
5688 view->maxx = 0;
5689 while (nprinted < view->nlines - 2) {
5690 linelen = getline(&line, &linesize, blame->f);
5691 if (linelen == -1) {
5692 if (feof(blame->f)) {
5693 s->eof = 1;
5694 break;
5695 }
5696 free(line);
5697 return got_ferror(blame->f, GOT_ERR_IO);
5698 }
5699 if (++lineno < s->first_displayed_line)
5700 continue;
5701 if (view->gline && !gotoline(view, &lineno, &nprinted))
5702 continue;
5703
5704 /* Set view->maxx based on full line length. */
5705 err = format_line(&wline, &width, NULL, line, 0, INT_MAX, 9, 1);
5706 if (err) {
5707 free(line);
5708 return err;
5709 }
5710 free(wline);
5711 wline = NULL;
5712 view->maxx = MAX(view->maxx, width);
5713
5714 if (nprinted == s->selected_line - 1)
5715 wstandout(view->window);
5716
5717 if (blame->nlines > 0) {
5718 blame_line = &blame->lines[lineno - 1];
5719 if (blame_line->annotated && prev_id &&
5720 got_object_id_cmp(prev_id, blame_line->id) == 0 &&
5721 !(nprinted == s->selected_line - 1)) {
5722 waddstr(view->window, " ");
5723 } else if (blame_line->annotated) {
5724 char *id_str;
5725 err = got_object_id_str(&id_str,
5726 blame_line->id);
5727 if (err) {
5728 free(line);
5729 return err;
5730 }
5731 tc = get_color(&s->colors, TOG_COLOR_COMMIT);
5732 if (tc)
5733 wattr_on(view->window,
5734 COLOR_PAIR(tc->colorpair), NULL);
5735 wprintw(view->window, "%.8s", id_str);
5736 if (tc)
5737 wattr_off(view->window,
5738 COLOR_PAIR(tc->colorpair), NULL);
5739 free(id_str);
5740 prev_id = blame_line->id;
5741 } else {
5742 waddstr(view->window, "........");
5743 prev_id = NULL;
5744 }
5745 } else {
5746 waddstr(view->window, "........");
5747 prev_id = NULL;
5748 }
5749
5750 if (nprinted == s->selected_line - 1)
5751 wstandend(view->window);
5752 waddstr(view->window, " ");
5753
5754 if (view->ncols <= 9) {
5755 width = 9;
5756 } else if (s->first_displayed_line + nprinted ==
5757 s->matched_line &&
5758 regmatch->rm_so >= 0 && regmatch->rm_so < regmatch->rm_eo) {
5759 err = add_matched_line(&width, line, view->ncols - 9, 9,
5760 view->window, view->x, regmatch);
5761 if (err) {
5762 free(line);
5763 return err;
5764 }
5765 width += 9;
5766 } else {
5767 int skip;
5768 err = format_line(&wline, &width, &skip, line,
5769 view->x, view->ncols - 9, 9, 1);
5770 if (err) {
5771 free(line);
5772 return err;
5773 }
5774 waddwstr(view->window, &wline[skip]);
5775 width += 9;
5776 free(wline);
5777 wline = NULL;
5778 }
5779
5780 if (width <= view->ncols - 1)
5781 waddch(view->window, '\n');
5782 if (++nprinted == 1)
5783 s->first_displayed_line = lineno;
5784 }
5785 free(line);
5786 s->last_displayed_line = lineno;
5787
5788 view_border(view);
5789
5790 return NULL;
5791 }
5792
5793 static const struct got_error *
5794 blame_cb(void *arg, int nlines, int lineno,
5795 struct got_commit_object *commit, struct got_object_id *id)
5796 {
5797 const struct got_error *err = NULL;
5798 struct tog_blame_cb_args *a = arg;
5799 struct tog_blame_line *line;
5800 int errcode;
5801
5802 if (nlines != a->nlines ||
5803 (lineno != -1 && lineno < 1) || lineno > a->nlines)
5804 return got_error(GOT_ERR_RANGE);
5805
5806 errcode = pthread_mutex_lock(&tog_mutex);
5807 if (errcode)
5808 return got_error_set_errno(errcode, "pthread_mutex_lock");
5809
5810 if (*a->quit) { /* user has quit the blame view */
5811 err = got_error(GOT_ERR_ITER_COMPLETED);
5812 goto done;
5813 }
5814
5815 if (lineno == -1)
5816 goto done; /* no change in this commit */
5817
5818 line = &a->lines[lineno - 1];
5819 if (line->annotated)
5820 goto done;
5821
5822 line->id = got_object_id_dup(id);
5823 if (line->id == NULL) {
5824 err = got_error_from_errno("got_object_id_dup");
5825 goto done;
5826 }
5827 line->annotated = 1;
5828 done:
5829 errcode = pthread_mutex_unlock(&tog_mutex);
5830 if (errcode)
5831 err = got_error_set_errno(errcode, "pthread_mutex_unlock");
5832 return err;
5833 }
5834
5835 static void *
5836 blame_thread(void *arg)
5837 {
5838 const struct got_error *err, *close_err;
5839 struct tog_blame_thread_args *ta = arg;
5840 struct tog_blame_cb_args *a = ta->cb_args;
5841 int errcode, fd1 = -1, fd2 = -1;
5842 FILE *f1 = NULL, *f2 = NULL;
5843
5844 fd1 = got_opentempfd();
5845 if (fd1 == -1)
5846 return (void *)got_error_from_errno("got_opentempfd");
5847
5848 fd2 = got_opentempfd();
5849 if (fd2 == -1) {
5850 err = got_error_from_errno("got_opentempfd");
5851 goto done;
5852 }
5853
5854 f1 = got_opentemp();
5855 if (f1 == NULL) {
5856 err = (void *)got_error_from_errno("got_opentemp");
5857 goto done;
5858 }
5859 f2 = got_opentemp();
5860 if (f2 == NULL) {
5861 err = (void *)got_error_from_errno("got_opentemp");
5862 goto done;
5863 }
5864
5865 err = block_signals_used_by_main_thread();
5866 if (err)
5867 goto done;
5868
5869 err = got_blame(ta->path, a->commit_id, ta->repo,
5870 tog_diff_algo, blame_cb, ta->cb_args,
5871 ta->cancel_cb, ta->cancel_arg, fd1, fd2, f1, f2);
5872 if (err && err->code == GOT_ERR_CANCELLED)
5873 err = NULL;
5874
5875 errcode = pthread_mutex_lock(&tog_mutex);
5876 if (errcode) {
5877 err = got_error_set_errno(errcode, "pthread_mutex_lock");
5878 goto done;
5879 }
5880
5881 close_err = got_repo_close(ta->repo);
5882 if (err == NULL)
5883 err = close_err;
5884 ta->repo = NULL;
5885 *ta->complete = 1;
5886
5887 errcode = pthread_mutex_unlock(&tog_mutex);
5888 if (errcode && err == NULL)
5889 err = got_error_set_errno(errcode, "pthread_mutex_unlock");
5890
5891 done:
5892 if (fd1 != -1 && close(fd1) == -1 && err == NULL)
5893 err = got_error_from_errno("close");
5894 if (fd2 != -1 && close(fd2) == -1 && err == NULL)
5895 err = got_error_from_errno("close");
5896 if (f1 && fclose(f1) == EOF && err == NULL)
5897 err = got_error_from_errno("fclose");
5898 if (f2 && fclose(f2) == EOF && err == NULL)
5899 err = got_error_from_errno("fclose");
5900
5901 return (void *)err;
5902 }
5903
5904 static struct got_object_id *
5905 get_selected_commit_id(struct tog_blame_line *lines, int nlines,
5906 int first_displayed_line, int selected_line)
5907 {
5908 struct tog_blame_line *line;
5909
5910 if (nlines <= 0)
5911 return NULL;
5912
5913 line = &lines[first_displayed_line - 1 + selected_line - 1];
5914 if (!line->annotated)
5915 return NULL;
5916
5917 return line->id;
5918 }
5919
5920 static struct got_object_id *
5921 get_annotation_for_line(struct tog_blame_line *lines, int nlines,
5922 int lineno)
5923 {
5924 struct tog_blame_line *line;
5925
5926 if (nlines <= 0 || lineno >= nlines)
5927 return NULL;
5928
5929 line = &lines[lineno - 1];
5930 if (!line->annotated)
5931 return NULL;
5932
5933 return line->id;
5934 }
5935
5936 static const struct got_error *
5937 stop_blame(struct tog_blame *blame)
5938 {
5939 const struct got_error *err = NULL;
5940 int i;
5941
5942 if (blame->thread) {
5943 int errcode;
5944 errcode = pthread_mutex_unlock(&tog_mutex);
5945 if (errcode)
5946 return got_error_set_errno(errcode,
5947 "pthread_mutex_unlock");
5948 errcode = pthread_join(blame->thread, (void **)&err);
5949 if (errcode)
5950 return got_error_set_errno(errcode, "pthread_join");
5951 errcode = pthread_mutex_lock(&tog_mutex);
5952 if (errcode)
5953 return got_error_set_errno(errcode,
5954 "pthread_mutex_lock");
5955 if (err && err->code == GOT_ERR_ITER_COMPLETED)
5956 err = NULL;
5957 blame->thread = 0; //NULL;
5958 }
5959 if (blame->thread_args.repo) {
5960 const struct got_error *close_err;
5961 close_err = got_repo_close(blame->thread_args.repo);
5962 if (err == NULL)
5963 err = close_err;
5964 blame->thread_args.repo = NULL;
5965 }
5966 if (blame->f) {
5967 if (fclose(blame->f) == EOF && err == NULL)
5968 err = got_error_from_errno("fclose");
5969 blame->f = NULL;
5970 }
5971 if (blame->lines) {
5972 for (i = 0; i < blame->nlines; i++)
5973 free(blame->lines[i].id);
5974 free(blame->lines);
5975 blame->lines = NULL;
5976 }
5977 free(blame->cb_args.commit_id);
5978 blame->cb_args.commit_id = NULL;
5979 if (blame->pack_fds) {
5980 const struct got_error *pack_err =
5981 got_repo_pack_fds_close(blame->pack_fds);
5982 if (err == NULL)
5983 err = pack_err;
5984 blame->pack_fds = NULL;
5985 }
5986 return err;
5987 }
5988
5989 static const struct got_error *
5990 cancel_blame_view(void *arg)
5991 {
5992 const struct got_error *err = NULL;
5993 int *done = arg;
5994 int errcode;
5995
5996 errcode = pthread_mutex_lock(&tog_mutex);
5997 if (errcode)
5998 return got_error_set_errno(errcode,
5999 "pthread_mutex_unlock");
6000
6001 if (*done)
6002 err = got_error(GOT_ERR_CANCELLED);
6003
6004 errcode = pthread_mutex_unlock(&tog_mutex);
6005 if (errcode)
6006 return got_error_set_errno(errcode,
6007 "pthread_mutex_lock");
6008
6009 return err;
6010 }
6011
6012 static const struct got_error *
6013 run_blame(struct tog_view *view)
6014 {
6015 struct tog_blame_view_state *s = &view->state.blame;
6016 struct tog_blame *blame = &s->blame;
6017 const struct got_error *err = NULL;
6018 struct got_commit_object *commit = NULL;
6019 struct got_blob_object *blob = NULL;
6020 struct got_repository *thread_repo = NULL;
6021 struct got_object_id *obj_id = NULL;
6022 int obj_type, fd = -1;
6023 int *pack_fds = NULL;
6024
6025 err = got_object_open_as_commit(&commit, s->repo,
6026 &s->blamed_commit->id);
6027 if (err)
6028 return err;
6029
6030 fd = got_opentempfd();
6031 if (fd == -1) {
6032 err = got_error_from_errno("got_opentempfd");
6033 goto done;
6034 }
6035
6036 err = got_object_id_by_path(&obj_id, s->repo, commit, s->path);
6037 if (err)
6038 goto done;
6039
6040 err = got_object_get_type(&obj_type, s->repo, obj_id);
6041 if (err)
6042 goto done;
6043
6044 if (obj_type != GOT_OBJ_TYPE_BLOB) {
6045 err = got_error(GOT_ERR_OBJ_TYPE);
6046 goto done;
6047 }
6048
6049 err = got_object_open_as_blob(&blob, s->repo, obj_id, 8192, fd);
6050 if (err)
6051 goto done;
6052 blame->f = got_opentemp();
6053 if (blame->f == NULL) {
6054 err = got_error_from_errno("got_opentemp");
6055 goto done;
6056 }
6057 err = got_object_blob_dump_to_file(&blame->filesize, &blame->nlines,
6058 &blame->line_offsets, blame->f, blob);
6059 if (err)
6060 goto done;
6061 if (blame->nlines == 0) {
6062 s->blame_complete = 1;
6063 goto done;
6064 }
6065
6066 /* Don't include \n at EOF in the blame line count. */
6067 if (blame->line_offsets[blame->nlines - 1] == blame->filesize)
6068 blame->nlines--;
6069
6070 blame->lines = calloc(blame->nlines, sizeof(*blame->lines));
6071 if (blame->lines == NULL) {
6072 err = got_error_from_errno("calloc");
6073 goto done;
6074 }
6075
6076 err = got_repo_pack_fds_open(&pack_fds);
6077 if (err)
6078 goto done;
6079 err = got_repo_open(&thread_repo, got_repo_get_path(s->repo), NULL,
6080 pack_fds);
6081 if (err)
6082 goto done;
6083
6084 blame->pack_fds = pack_fds;
6085 blame->cb_args.view = view;
6086 blame->cb_args.lines = blame->lines;
6087 blame->cb_args.nlines = blame->nlines;
6088 blame->cb_args.commit_id = got_object_id_dup(&s->blamed_commit->id);
6089 if (blame->cb_args.commit_id == NULL) {
6090 err = got_error_from_errno("got_object_id_dup");
6091 goto done;
6092 }
6093 blame->cb_args.quit = &s->done;
6094
6095 blame->thread_args.path = s->path;
6096 blame->thread_args.repo = thread_repo;
6097 blame->thread_args.cb_args = &blame->cb_args;
6098 blame->thread_args.complete = &s->blame_complete;
6099 blame->thread_args.cancel_cb = cancel_blame_view;
6100 blame->thread_args.cancel_arg = &s->done;
6101 s->blame_complete = 0;
6102
6103 if (s->first_displayed_line + view->nlines - 1 > blame->nlines) {
6104 s->first_displayed_line = 1;
6105 s->last_displayed_line = view->nlines;
6106 s->selected_line = 1;
6107 }
6108 s->matched_line = 0;
6109
6110 done:
6111 if (commit)
6112 got_object_commit_close(commit);
6113 if (fd != -1 && close(fd) == -1 && err == NULL)
6114 err = got_error_from_errno("close");
6115 if (blob)
6116 got_object_blob_close(blob);
6117 free(obj_id);
6118 if (err)
6119 stop_blame(blame);
6120 return err;
6121 }
6122
6123 static const struct got_error *
6124 open_blame_view(struct tog_view *view, char *path,
6125 struct got_object_id *commit_id, struct got_repository *repo)
6126 {
6127 const struct got_error *err = NULL;
6128 struct tog_blame_view_state *s = &view->state.blame;
6129
6130 STAILQ_INIT(&s->blamed_commits);
6131
6132 s->path = strdup(path);
6133 if (s->path == NULL)
6134 return got_error_from_errno("strdup");
6135
6136 err = got_object_qid_alloc(&s->blamed_commit, commit_id);
6137 if (err) {
6138 free(s->path);
6139 return err;
6140 }
6141
6142 STAILQ_INSERT_HEAD(&s->blamed_commits, s->blamed_commit, entry);
6143 s->first_displayed_line = 1;
6144 s->last_displayed_line = view->nlines;
6145 s->selected_line = 1;
6146 s->blame_complete = 0;
6147 s->repo = repo;
6148 s->commit_id = commit_id;
6149 memset(&s->blame, 0, sizeof(s->blame));
6150
6151 STAILQ_INIT(&s->colors);
6152 if (has_colors() && getenv("TOG_COLORS") != NULL) {
6153 err = add_color(&s->colors, "^", TOG_COLOR_COMMIT,
6154 get_color_value("TOG_COLOR_COMMIT"));
6155 if (err)
6156 return err;
6157 }
6158
6159 view->show = show_blame_view;
6160 view->input = input_blame_view;
6161 view->reset = reset_blame_view;
6162 view->close = close_blame_view;
6163 view->search_start = search_start_blame_view;
6164 view->search_setup = search_setup_blame_view;
6165 view->search_next = search_next_view_match;
6166
6167 return run_blame(view);
6168 }
6169
6170 static const struct got_error *
6171 close_blame_view(struct tog_view *view)
6172 {
6173 const struct got_error *err = NULL;
6174 struct tog_blame_view_state *s = &view->state.blame;
6175
6176 if (s->blame.thread)
6177 err = stop_blame(&s->blame);
6178
6179 while (!STAILQ_EMPTY(&s->blamed_commits)) {
6180 struct got_object_qid *blamed_commit;
6181 blamed_commit = STAILQ_FIRST(&s->blamed_commits);
6182 STAILQ_REMOVE_HEAD(&s->blamed_commits, entry);
6183 got_object_qid_free(blamed_commit);
6184 }
6185
6186 free(s->path);
6187 free_colors(&s->colors);
6188 return err;
6189 }
6190
6191 static const struct got_error *
6192 search_start_blame_view(struct tog_view *view)
6193 {
6194 struct tog_blame_view_state *s = &view->state.blame;
6195
6196 s->matched_line = 0;
6197 return NULL;
6198 }
6199
6200 static void
6201 search_setup_blame_view(struct tog_view *view, FILE **f, off_t **line_offsets,
6202 size_t *nlines, int **first, int **last, int **match, int **selected)
6203 {
6204 struct tog_blame_view_state *s = &view->state.blame;
6205
6206 *f = s->blame.f;
6207 *nlines = s->blame.nlines;
6208 *line_offsets = s->blame.line_offsets;
6209 *match = &s->matched_line;
6210 *first = &s->first_displayed_line;
6211 *last = &s->last_displayed_line;
6212 *selected = &s->selected_line;
6213 }
6214
6215 static const struct got_error *
6216 show_blame_view(struct tog_view *view)
6217 {
6218 const struct got_error *err = NULL;
6219 struct tog_blame_view_state *s = &view->state.blame;
6220 int errcode;
6221
6222 if (s->blame.thread == 0 && !s->blame_complete) {
6223 errcode = pthread_create(&s->blame.thread, NULL, blame_thread,
6224 &s->blame.thread_args);
6225 if (errcode)
6226 return got_error_set_errno(errcode, "pthread_create");
6227
6228 halfdelay(1); /* fast refresh while annotating */
6229 }
6230
6231 if (s->blame_complete)
6232 halfdelay(10); /* disable fast refresh */
6233
6234 err = draw_blame(view);
6235
6236 view_border(view);
6237 return err;
6238 }
6239
6240 static const struct got_error *
6241 log_annotated_line(struct tog_view **new_view, int begin_y, int begin_x,
6242 struct got_repository *repo, struct got_object_id *id)
6243 {
6244 struct tog_view *log_view;
6245 const struct got_error *err = NULL;
6246
6247 *new_view = NULL;
6248
6249 log_view = view_open(0, 0, begin_y, begin_x, TOG_VIEW_LOG);
6250 if (log_view == NULL)
6251 return got_error_from_errno("view_open");
6252
6253 err = open_log_view(log_view, id, repo, GOT_REF_HEAD, "", 0);
6254 if (err)
6255 view_close(log_view);
6256 else
6257 *new_view = log_view;
6258
6259 return err;
6260 }
6261
6262 static const struct got_error *
6263 input_blame_view(struct tog_view **new_view, struct tog_view *view, int ch)
6264 {
6265 const struct got_error *err = NULL, *thread_err = NULL;
6266 struct tog_view *diff_view;
6267 struct tog_blame_view_state *s = &view->state.blame;
6268 int eos, nscroll, begin_y = 0, begin_x = 0;
6269
6270 eos = nscroll = view->nlines - 2;
6271 if (view_is_hsplit_top(view))
6272 --eos; /* border */
6273
6274 switch (ch) {
6275 case '0':
6276 view->x = 0;
6277 break;
6278 case '$':
6279 view->x = MAX(view->maxx - view->ncols / 3, 0);
6280 view->count = 0;
6281 break;
6282 case KEY_RIGHT:
6283 case 'l':
6284 if (view->x + view->ncols / 3 < view->maxx)
6285 view->x += 2; /* move two columns right */
6286 else
6287 view->count = 0;
6288 break;
6289 case KEY_LEFT:
6290 case 'h':
6291 view->x -= MIN(view->x, 2); /* move two columns back */
6292 if (view->x <= 0)
6293 view->count = 0;
6294 break;
6295 case 'q':
6296 s->done = 1;
6297 break;
6298 case 'g':
6299 case KEY_HOME:
6300 s->selected_line = 1;
6301 s->first_displayed_line = 1;
6302 view->count = 0;
6303 break;
6304 case 'G':
6305 case KEY_END:
6306 if (s->blame.nlines < eos) {
6307 s->selected_line = s->blame.nlines;
6308 s->first_displayed_line = 1;
6309 } else {
6310 s->selected_line = eos;
6311 s->first_displayed_line = s->blame.nlines - (eos - 1);
6312 }
6313 view->count = 0;
6314 break;
6315 case 'k':
6316 case KEY_UP:
6317 case CTRL('p'):
6318 if (s->selected_line > 1)
6319 s->selected_line--;
6320 else if (s->selected_line == 1 &&
6321 s->first_displayed_line > 1)
6322 s->first_displayed_line--;
6323 else
6324 view->count = 0;
6325 break;
6326 case CTRL('u'):
6327 case 'u':
6328 nscroll /= 2;
6329 /* FALL THROUGH */
6330 case KEY_PPAGE:
6331 case CTRL('b'):
6332 case 'b':
6333 if (s->first_displayed_line == 1) {
6334 if (view->count > 1)
6335 nscroll += nscroll;
6336 s->selected_line = MAX(1, s->selected_line - nscroll);
6337 view->count = 0;
6338 break;
6339 }
6340 if (s->first_displayed_line > nscroll)
6341 s->first_displayed_line -= nscroll;
6342 else
6343 s->first_displayed_line = 1;
6344 break;
6345 case 'j':
6346 case KEY_DOWN:
6347 case CTRL('n'):
6348 if (s->selected_line < eos && s->first_displayed_line +
6349 s->selected_line <= s->blame.nlines)
6350 s->selected_line++;
6351 else if (s->first_displayed_line < s->blame.nlines - (eos - 1))
6352 s->first_displayed_line++;
6353 else
6354 view->count = 0;
6355 break;
6356 case 'c':
6357 case 'p': {
6358 struct got_object_id *id = NULL;
6359
6360 view->count = 0;
6361 id = get_selected_commit_id(s->blame.lines, s->blame.nlines,
6362 s->first_displayed_line, s->selected_line);
6363 if (id == NULL)
6364 break;
6365 if (ch == 'p') {
6366 struct got_commit_object *commit, *pcommit;
6367 struct got_object_qid *pid;
6368 struct got_object_id *blob_id = NULL;
6369 int obj_type;
6370 err = got_object_open_as_commit(&commit,
6371 s->repo, id);
6372 if (err)
6373 break;
6374 pid = STAILQ_FIRST(
6375 got_object_commit_get_parent_ids(commit));
6376 if (pid == NULL) {
6377 got_object_commit_close(commit);
6378 break;
6379 }
6380 /* Check if path history ends here. */
6381 err = got_object_open_as_commit(&pcommit,
6382 s->repo, &pid->id);
6383 if (err)
6384 break;
6385 err = got_object_id_by_path(&blob_id, s->repo,
6386 pcommit, s->path);
6387 got_object_commit_close(pcommit);
6388 if (err) {
6389 if (err->code == GOT_ERR_NO_TREE_ENTRY)
6390 err = NULL;
6391 got_object_commit_close(commit);
6392 break;
6393 }
6394 err = got_object_get_type(&obj_type, s->repo,
6395 blob_id);
6396 free(blob_id);
6397 /* Can't blame non-blob type objects. */
6398 if (obj_type != GOT_OBJ_TYPE_BLOB) {
6399 got_object_commit_close(commit);
6400 break;
6401 }
6402 err = got_object_qid_alloc(&s->blamed_commit,
6403 &pid->id);
6404 got_object_commit_close(commit);
6405 } else {
6406 if (got_object_id_cmp(id,
6407 &s->blamed_commit->id) == 0)
6408 break;
6409 err = got_object_qid_alloc(&s->blamed_commit,
6410 id);
6411 }
6412 if (err)
6413 break;
6414 s->done = 1;
6415 thread_err = stop_blame(&s->blame);
6416 s->done = 0;
6417 if (thread_err)
6418 break;
6419 STAILQ_INSERT_HEAD(&s->blamed_commits,
6420 s->blamed_commit, entry);
6421 err = run_blame(view);
6422 if (err)
6423 break;
6424 break;
6425 }
6426 case 'C': {
6427 struct got_object_qid *first;
6428
6429 view->count = 0;
6430 first = STAILQ_FIRST(&s->blamed_commits);
6431 if (!got_object_id_cmp(&first->id, s->commit_id))
6432 break;
6433 s->done = 1;
6434 thread_err = stop_blame(&s->blame);
6435 s->done = 0;
6436 if (thread_err)
6437 break;
6438 STAILQ_REMOVE_HEAD(&s->blamed_commits, entry);
6439 got_object_qid_free(s->blamed_commit);
6440 s->blamed_commit =
6441 STAILQ_FIRST(&s->blamed_commits);
6442 err = run_blame(view);
6443 if (err)
6444 break;
6445 break;
6446 }
6447 case 'L':
6448 view->count = 0;
6449 s->id_to_log = get_selected_commit_id(s->blame.lines,
6450 s->blame.nlines, s->first_displayed_line, s->selected_line);
6451 if (s->id_to_log)
6452 err = view_request_new(new_view, view, TOG_VIEW_LOG);
6453 break;
6454 case KEY_ENTER:
6455 case '\r': {
6456 struct got_object_id *id = NULL;
6457 struct got_object_qid *pid;
6458 struct got_commit_object *commit = NULL;
6459
6460 view->count = 0;
6461 id = get_selected_commit_id(s->blame.lines, s->blame.nlines,
6462 s->first_displayed_line, s->selected_line);
6463 if (id == NULL)
6464 break;
6465 err = got_object_open_as_commit(&commit, s->repo, id);
6466 if (err)
6467 break;
6468 pid = STAILQ_FIRST(got_object_commit_get_parent_ids(commit));
6469 if (*new_view) {
6470 /* traversed from diff view, release diff resources */
6471 err = close_diff_view(*new_view);
6472 if (err)
6473 break;
6474 diff_view = *new_view;
6475 } else {
6476 if (view_is_parent_view(view))
6477 view_get_split(view, &begin_y, &begin_x);
6478
6479 diff_view = view_open(0, 0, begin_y, begin_x,
6480 TOG_VIEW_DIFF);
6481 if (diff_view == NULL) {
6482 got_object_commit_close(commit);
6483 err = got_error_from_errno("view_open");
6484 break;
6485 }
6486 }
6487 err = open_diff_view(diff_view, pid ? &pid->id : NULL,
6488 id, NULL, NULL, 3, 0, 0, view, s->repo);
6489 got_object_commit_close(commit);
6490 if (err) {
6491 view_close(diff_view);
6492 break;
6493 }
6494 s->last_diffed_line = s->first_displayed_line - 1 +
6495 s->selected_line;
6496 if (*new_view)
6497 break; /* still open from active diff view */
6498 if (view_is_parent_view(view) &&
6499 view->mode == TOG_VIEW_SPLIT_HRZN) {
6500 err = view_init_hsplit(view, begin_y);
6501 if (err)
6502 break;
6503 }
6504
6505 view->focussed = 0;
6506 diff_view->focussed = 1;
6507 diff_view->mode = view->mode;
6508 diff_view->nlines = view->lines - begin_y;
6509 if (view_is_parent_view(view)) {
6510 view_transfer_size(diff_view, view);
6511 err = view_close_child(view);
6512 if (err)
6513 break;
6514 err = view_set_child(view, diff_view);
6515 if (err)
6516 break;
6517 view->focus_child = 1;
6518 } else
6519 *new_view = diff_view;
6520 if (err)
6521 break;
6522 break;
6523 }
6524 case CTRL('d'):
6525 case 'd':
6526 nscroll /= 2;
6527 /* FALL THROUGH */
6528 case KEY_NPAGE:
6529 case CTRL('f'):
6530 case 'f':
6531 case ' ':
6532 if (s->last_displayed_line >= s->blame.nlines &&
6533 s->selected_line >= MIN(s->blame.nlines,
6534 view->nlines - 2)) {
6535 view->count = 0;
6536 break;
6537 }
6538 if (s->last_displayed_line >= s->blame.nlines &&
6539 s->selected_line < view->nlines - 2) {
6540 s->selected_line +=
6541 MIN(nscroll, s->last_displayed_line -
6542 s->first_displayed_line - s->selected_line + 1);
6543 }
6544 if (s->last_displayed_line + nscroll <= s->blame.nlines)
6545 s->first_displayed_line += nscroll;
6546 else
6547 s->first_displayed_line =
6548 s->blame.nlines - (view->nlines - 3);
6549 break;
6550 case KEY_RESIZE:
6551 if (s->selected_line > view->nlines - 2) {
6552 s->selected_line = MIN(s->blame.nlines,
6553 view->nlines - 2);
6554 }
6555 break;
6556 default:
6557 view->count = 0;
6558 break;
6559 }
6560 return thread_err ? thread_err : err;
6561 }
6562
6563 static const struct got_error *
6564 reset_blame_view(struct tog_view *view)
6565 {
6566 const struct got_error *err;
6567 struct tog_blame_view_state *s = &view->state.blame;
6568
6569 view->count = 0;
6570 s->done = 1;
6571 err = stop_blame(&s->blame);
6572 s->done = 0;
6573 if (err)
6574 return err;
6575 return run_blame(view);
6576 }
6577
6578 static const struct got_error *
6579 cmd_blame(int argc, char *argv[])
6580 {
6581 const struct got_error *error;
6582 struct got_repository *repo = NULL;
6583 struct got_worktree *worktree = NULL;
6584 char *cwd = NULL, *repo_path = NULL, *in_repo_path = NULL;
6585 char *link_target = NULL;
6586 struct got_object_id *commit_id = NULL;
6587 struct got_commit_object *commit = NULL;
6588 char *commit_id_str = NULL;
6589 int ch;
6590 struct tog_view *view;
6591 int *pack_fds = NULL;
6592
6593 while ((ch = getopt(argc, argv, "c:r:")) != -1) {
6594 switch (ch) {
6595 case 'c':
6596 commit_id_str = optarg;
6597 break;
6598 case 'r':
6599 repo_path = realpath(optarg, NULL);
6600 if (repo_path == NULL)
6601 return got_error_from_errno2("realpath",
6602 optarg);
6603 break;
6604 default:
6605 usage_blame();
6606 /* NOTREACHED */
6607 }
6608 }
6609
6610 argc -= optind;
6611 argv += optind;
6612
6613 if (argc != 1)
6614 usage_blame();
6615
6616 error = got_repo_pack_fds_open(&pack_fds);
6617 if (error != NULL)
6618 goto done;
6619
6620 if (repo_path == NULL) {
6621 cwd = getcwd(NULL, 0);
6622 if (cwd == NULL)
6623 return got_error_from_errno("getcwd");
6624 error = got_worktree_open(&worktree, cwd);
6625 if (error && error->code != GOT_ERR_NOT_WORKTREE)
6626 goto done;
6627 if (worktree)
6628 repo_path =
6629 strdup(got_worktree_get_repo_path(worktree));
6630 else
6631 repo_path = strdup(cwd);
6632 if (repo_path == NULL) {
6633 error = got_error_from_errno("strdup");
6634 goto done;
6635 }
6636 }
6637
6638 error = got_repo_open(&repo, repo_path, NULL, pack_fds);
6639 if (error != NULL)
6640 goto done;
6641
6642 error = get_in_repo_path_from_argv0(&in_repo_path, argc, argv, repo,
6643 worktree);
6644 if (error)
6645 goto done;
6646
6647 init_curses();
6648
6649 error = apply_unveil(got_repo_get_path(repo), NULL);
6650 if (error)
6651 goto done;
6652
6653 error = tog_load_refs(repo, 0);
6654 if (error)
6655 goto done;
6656
6657 if (commit_id_str == NULL) {
6658 struct got_reference *head_ref;
6659 error = got_ref_open(&head_ref, repo, worktree ?
6660 got_worktree_get_head_ref_name(worktree) : GOT_REF_HEAD, 0);
6661 if (error != NULL)
6662 goto done;
6663 error = got_ref_resolve(&commit_id, repo, head_ref);
6664 got_ref_close(head_ref);
6665 } else {
6666 error = got_repo_match_object_id(&commit_id, NULL,
6667 commit_id_str, GOT_OBJ_TYPE_COMMIT, &tog_refs, repo);
6668 }
6669 if (error != NULL)
6670 goto done;
6671
6672 view = view_open(0, 0, 0, 0, TOG_VIEW_BLAME);
6673 if (view == NULL) {
6674 error = got_error_from_errno("view_open");
6675 goto done;
6676 }
6677
6678 error = got_object_open_as_commit(&commit, repo, commit_id);
6679 if (error)
6680 goto done;
6681
6682 error = got_object_resolve_symlinks(&link_target, in_repo_path,
6683 commit, repo);
6684 if (error)
6685 goto done;
6686
6687 error = open_blame_view(view, link_target ? link_target : in_repo_path,
6688 commit_id, repo);
6689 if (error)
6690 goto done;
6691 if (worktree) {
6692 /* Release work tree lock. */
6693 got_worktree_close(worktree);
6694 worktree = NULL;
6695 }
6696 error = view_loop(view);
6697 done:
6698 free(repo_path);
6699 free(in_repo_path);
6700 free(link_target);
6701 free(cwd);
6702 free(commit_id);
6703 if (commit)
6704 got_object_commit_close(commit);
6705 if (worktree)
6706 got_worktree_close(worktree);
6707 if (repo) {
6708 const struct got_error *close_err = got_repo_close(repo);
6709 if (error == NULL)
6710 error = close_err;
6711 }
6712 if (pack_fds) {
6713 const struct got_error *pack_err =
6714 got_repo_pack_fds_close(pack_fds);
6715 if (error == NULL)
6716 error = pack_err;
6717 }
6718 tog_free_refs();
6719 return error;
6720 }
6721
6722 static const struct got_error *
6723 draw_tree_entries(struct tog_view *view, const char *parent_path)
6724 {
6725 struct tog_tree_view_state *s = &view->state.tree;
6726 const struct got_error *err = NULL;
6727 struct got_tree_entry *te;
6728 wchar_t *wline;
6729 char *index = NULL;
6730 struct tog_color *tc;
6731 int width, n, nentries, i = 1;
6732 int limit = view->nlines;
6733
6734 s->ndisplayed = 0;
6735 if (view_is_hsplit_top(view))
6736 --limit; /* border */
6737
6738 werase(view->window);
6739
6740 if (limit == 0)
6741 return NULL;
6742
6743 err = format_line(&wline, &width, NULL, s->tree_label, 0, view->ncols,
6744 0, 0);
6745 if (err)
6746 return err;
6747 if (view_needs_focus_indication(view))
6748 wstandout(view->window);
6749 tc = get_color(&s->colors, TOG_COLOR_COMMIT);
6750 if (tc)
6751 wattr_on(view->window, COLOR_PAIR(tc->colorpair), NULL);
6752 waddwstr(view->window, wline);
6753 free(wline);
6754 wline = NULL;
6755 while (width++ < view->ncols)
6756 waddch(view->window, ' ');
6757 if (tc)
6758 wattr_off(view->window, COLOR_PAIR(tc->colorpair), NULL);
6759 if (view_needs_focus_indication(view))
6760 wstandend(view->window);
6761 if (--limit <= 0)
6762 return NULL;
6763
6764 i += s->selected;
6765 if (s->first_displayed_entry) {
6766 i += got_tree_entry_get_index(s->first_displayed_entry);
6767 if (s->tree != s->root)
6768 ++i; /* account for ".." entry */
6769 }
6770 nentries = got_object_tree_get_nentries(s->tree);
6771 if (asprintf(&index, "[%d/%d] %s",
6772 i, nentries + (s->tree == s->root ? 0 : 1), parent_path) == -1)
6773 return got_error_from_errno("asprintf");
6774 err = format_line(&wline, &width, NULL, index, 0, view->ncols, 0, 0);
6775 free(index);
6776 if (err)
6777 return err;
6778 waddwstr(view->window, wline);
6779 free(wline);
6780 wline = NULL;
6781 if (width < view->ncols - 1)
6782 waddch(view->window, '\n');
6783 if (--limit <= 0)
6784 return NULL;
6785 waddch(view->window, '\n');
6786 if (--limit <= 0)
6787 return NULL;
6788
6789 if (s->first_displayed_entry == NULL) {
6790 te = got_object_tree_get_first_entry(s->tree);
6791 if (s->selected == 0) {
6792 if (view->focussed)
6793 wstandout(view->window);
6794 s->selected_entry = NULL;
6795 }
6796 waddstr(view->window, " ..\n"); /* parent directory */
6797 if (s->selected == 0 && view->focussed)
6798 wstandend(view->window);
6799 s->ndisplayed++;
6800 if (--limit <= 0)
6801 return NULL;
6802 n = 1;
6803 } else {
6804 n = 0;
6805 te = s->first_displayed_entry;
6806 }
6807
6808 for (i = got_tree_entry_get_index(te); i < nentries; i++) {
6809 char *line = NULL, *id_str = NULL, *link_target = NULL;
6810 const char *modestr = "";
6811 mode_t mode;
6812
6813 te = got_object_tree_get_entry(s->tree, i);
6814 mode = got_tree_entry_get_mode(te);
6815
6816 if (s->show_ids) {
6817 err = got_object_id_str(&id_str,
6818 got_tree_entry_get_id(te));
6819 if (err)
6820 return got_error_from_errno(
6821 "got_object_id_str");
6822 }
6823 if (got_object_tree_entry_is_submodule(te))
6824 modestr = "$";
6825 else if (S_ISLNK(mode)) {
6826 int i;
6827
6828 err = got_tree_entry_get_symlink_target(&link_target,
6829 te, s->repo);
6830 if (err) {
6831 free(id_str);
6832 return err;
6833 }
6834 for (i = 0; i < strlen(link_target); i++) {
6835 if (!isprint((unsigned char)link_target[i]))
6836 link_target[i] = '?';
6837 }
6838 modestr = "@";
6839 }
6840 else if (S_ISDIR(mode))
6841 modestr = "/";
6842 else if (mode & S_IXUSR)
6843 modestr = "*";
6844 if (asprintf(&line, "%s %s%s%s%s", id_str ? id_str : "",
6845 got_tree_entry_get_name(te), modestr,
6846 link_target ? " -> ": "",
6847 link_target ? link_target : "") == -1) {
6848 free(id_str);
6849 free(link_target);
6850 return got_error_from_errno("asprintf");
6851 }
6852 free(id_str);
6853 free(link_target);
6854 err = format_line(&wline, &width, NULL, line, 0, view->ncols,
6855 0, 0);
6856 if (err) {
6857 free(line);
6858 break;
6859 }
6860 if (n == s->selected) {
6861 if (view->focussed)
6862 wstandout(view->window);
6863 s->selected_entry = te;
6864 }
6865 tc = match_color(&s->colors, line);
6866 if (tc)
6867 wattr_on(view->window,
6868 COLOR_PAIR(tc->colorpair), NULL);
6869 waddwstr(view->window, wline);
6870 if (tc)
6871 wattr_off(view->window,
6872 COLOR_PAIR(tc->colorpair), NULL);
6873 if (width < view->ncols - 1)
6874 waddch(view->window, '\n');
6875 if (n == s->selected && view->focussed)
6876 wstandend(view->window);
6877 free(line);
6878 free(wline);
6879 wline = NULL;
6880 n++;
6881 s->ndisplayed++;
6882 s->last_displayed_entry = te;
6883 if (--limit <= 0)
6884 break;
6885 }
6886
6887 return err;
6888 }
6889
6890 static void
6891 tree_scroll_up(struct tog_tree_view_state *s, int maxscroll)
6892 {
6893 struct got_tree_entry *te;
6894 int isroot = s->tree == s->root;
6895 int i = 0;
6896
6897 if (s->first_displayed_entry == NULL)
6898 return;
6899
6900 te = got_tree_entry_get_prev(s->tree, s->first_displayed_entry);
6901 while (i++ < maxscroll) {
6902 if (te == NULL) {
6903 if (!isroot)
6904 s->first_displayed_entry = NULL;
6905 break;
6906 }
6907 s->first_displayed_entry = te;
6908 te = got_tree_entry_get_prev(s->tree, te);
6909 }
6910 }
6911
6912 static const struct got_error *
6913 tree_scroll_down(struct tog_view *view, int maxscroll)
6914 {
6915 struct tog_tree_view_state *s = &view->state.tree;
6916 struct got_tree_entry *next, *last;
6917 int n = 0;
6918
6919 if (s->first_displayed_entry)
6920 next = got_tree_entry_get_next(s->tree,
6921 s->first_displayed_entry);
6922 else
6923 next = got_object_tree_get_first_entry(s->tree);
6924
6925 last = s->last_displayed_entry;
6926 while (next && n++ < maxscroll) {
6927 if (last) {
6928 s->last_displayed_entry = last;
6929 last = got_tree_entry_get_next(s->tree, last);
6930 }
6931 if (last || (view->mode == TOG_VIEW_SPLIT_HRZN && next)) {
6932 s->first_displayed_entry = next;
6933 next = got_tree_entry_get_next(s->tree, next);
6934 }
6935 }
6936
6937 return NULL;
6938 }
6939
6940 static const struct got_error *
6941 tree_entry_path(char **path, struct tog_parent_trees *parents,
6942 struct got_tree_entry *te)
6943 {
6944 const struct got_error *err = NULL;
6945 struct tog_parent_tree *pt;
6946 size_t len = 2; /* for leading slash and NUL */
6947
6948 TAILQ_FOREACH(pt, parents, entry)
6949 len += strlen(got_tree_entry_get_name(pt->selected_entry))
6950 + 1 /* slash */;
6951 if (te)
6952 len += strlen(got_tree_entry_get_name(te));
6953
6954 *path = calloc(1, len);
6955 if (path == NULL)
6956 return got_error_from_errno("calloc");
6957
6958 (*path)[0] = '/';
6959 pt = TAILQ_LAST(parents, tog_parent_trees);
6960 while (pt) {
6961 const char *name = got_tree_entry_get_name(pt->selected_entry);
6962 if (strlcat(*path, name, len) >= len) {
6963 err = got_error(GOT_ERR_NO_SPACE);
6964 goto done;
6965 }
6966 if (strlcat(*path, "/", len) >= len) {
6967 err = got_error(GOT_ERR_NO_SPACE);
6968 goto done;
6969 }
6970 pt = TAILQ_PREV(pt, tog_parent_trees, entry);
6971 }
6972 if (te) {
6973 if (strlcat(*path, got_tree_entry_get_name(te), len) >= len) {
6974 err = got_error(GOT_ERR_NO_SPACE);
6975 goto done;
6976 }
6977 }
6978 done:
6979 if (err) {
6980 free(*path);
6981 *path = NULL;
6982 }
6983 return err;
6984 }
6985
6986 static const struct got_error *
6987 blame_tree_entry(struct tog_view **new_view, int begin_y, int begin_x,
6988 struct got_tree_entry *te, struct tog_parent_trees *parents,
6989 struct got_object_id *commit_id, struct got_repository *repo)
6990 {
6991 const struct got_error *err = NULL;
6992 char *path;
6993 struct tog_view *blame_view;
6994
6995 *new_view = NULL;
6996
6997 err = tree_entry_path(&path, parents, te);
6998 if (err)
6999 return err;
7000
7001 blame_view = view_open(0, 0, begin_y, begin_x, TOG_VIEW_BLAME);
7002 if (blame_view == NULL) {
7003 err = got_error_from_errno("view_open");
7004 goto done;
7005 }
7006
7007 err = open_blame_view(blame_view, path, commit_id, repo);
7008 if (err) {
7009 if (err->code == GOT_ERR_CANCELLED)
7010 err = NULL;
7011 view_close(blame_view);
7012 } else
7013 *new_view = blame_view;
7014 done:
7015 free(path);
7016 return err;
7017 }
7018
7019 static const struct got_error *
7020 log_selected_tree_entry(struct tog_view **new_view, int begin_y, int begin_x,
7021 struct tog_tree_view_state *s)
7022 {
7023 struct tog_view *log_view;
7024 const struct got_error *err = NULL;
7025 char *path;
7026
7027 *new_view = NULL;
7028
7029 log_view = view_open(0, 0, begin_y, begin_x, TOG_VIEW_LOG);
7030 if (log_view == NULL)
7031 return got_error_from_errno("view_open");
7032
7033 err = tree_entry_path(&path, &s->parents, s->selected_entry);
7034 if (err)
7035 return err;
7036
7037 err = open_log_view(log_view, s->commit_id, s->repo, s->head_ref_name,
7038 path, 0);
7039 if (err)
7040 view_close(log_view);
7041 else
7042 *new_view = log_view;
7043 free(path);
7044 return err;
7045 }
7046
7047 static const struct got_error *
7048 open_tree_view(struct tog_view *view, struct got_object_id *commit_id,
7049 const char *head_ref_name, struct got_repository *repo)
7050 {
7051 const struct got_error *err = NULL;
7052 char *commit_id_str = NULL;
7053 struct tog_tree_view_state *s = &view->state.tree;
7054 struct got_commit_object *commit = NULL;
7055
7056 TAILQ_INIT(&s->parents);
7057 STAILQ_INIT(&s->colors);
7058
7059 s->commit_id = got_object_id_dup(commit_id);
7060 if (s->commit_id == NULL)
7061 return got_error_from_errno("got_object_id_dup");
7062
7063 err = got_object_open_as_commit(&commit, repo, commit_id);
7064 if (err)
7065 goto done;
7066
7067 /*
7068 * The root is opened here and will be closed when the view is closed.
7069 * Any visited subtrees and their path-wise parents are opened and
7070 * closed on demand.
7071 */
7072 err = got_object_open_as_tree(&s->root, repo,
7073 got_object_commit_get_tree_id(commit));
7074 if (err)
7075 goto done;
7076 s->tree = s->root;
7077
7078 err = got_object_id_str(&commit_id_str, commit_id);
7079 if (err != NULL)
7080 goto done;
7081
7082 if (asprintf(&s->tree_label, "commit %s", commit_id_str) == -1) {
7083 err = got_error_from_errno("asprintf");
7084 goto done;
7085 }
7086
7087 s->first_displayed_entry = got_object_tree_get_entry(s->tree, 0);
7088 s->selected_entry = got_object_tree_get_entry(s->tree, 0);
7089 if (head_ref_name) {
7090 s->head_ref_name = strdup(head_ref_name);
7091 if (s->head_ref_name == NULL) {
7092 err = got_error_from_errno("strdup");
7093 goto done;
7094 }
7095 }
7096 s->repo = repo;
7097
7098 if (has_colors() && getenv("TOG_COLORS") != NULL) {
7099 err = add_color(&s->colors, "\\$$",
7100 TOG_COLOR_TREE_SUBMODULE,
7101 get_color_value("TOG_COLOR_TREE_SUBMODULE"));
7102 if (err)
7103 goto done;
7104 err = add_color(&s->colors, "@$", TOG_COLOR_TREE_SYMLINK,
7105 get_color_value("TOG_COLOR_TREE_SYMLINK"));
7106 if (err)
7107 goto done;
7108 err = add_color(&s->colors, "/$",
7109 TOG_COLOR_TREE_DIRECTORY,
7110 get_color_value("TOG_COLOR_TREE_DIRECTORY"));
7111 if (err)
7112 goto done;
7113
7114 err = add_color(&s->colors, "\\*$",
7115 TOG_COLOR_TREE_EXECUTABLE,
7116 get_color_value("TOG_COLOR_TREE_EXECUTABLE"));
7117 if (err)
7118 goto done;
7119
7120 err = add_color(&s->colors, "^$", TOG_COLOR_COMMIT,
7121 get_color_value("TOG_COLOR_COMMIT"));
7122 if (err)
7123 goto done;
7124 }
7125
7126 view->show = show_tree_view;
7127 view->input = input_tree_view;
7128 view->close = close_tree_view;
7129 view->search_start = search_start_tree_view;
7130 view->search_next = search_next_tree_view;
7131 done:
7132 free(commit_id_str);
7133 if (commit)
7134 got_object_commit_close(commit);
7135 if (err)
7136 close_tree_view(view);
7137 return err;
7138 }
7139
7140 static const struct got_error *
7141 close_tree_view(struct tog_view *view)
7142 {
7143 struct tog_tree_view_state *s = &view->state.tree;
7144
7145 free_colors(&s->colors);
7146 free(s->tree_label);
7147 s->tree_label = NULL;
7148 free(s->commit_id);
7149 s->commit_id = NULL;
7150 free(s->head_ref_name);
7151 s->head_ref_name = NULL;
7152 while (!TAILQ_EMPTY(&s->parents)) {
7153 struct tog_parent_tree *parent;
7154 parent = TAILQ_FIRST(&s->parents);
7155 TAILQ_REMOVE(&s->parents, parent, entry);
7156 if (parent->tree != s->root)
7157 got_object_tree_close(parent->tree);
7158 free(parent);
7159
7160 }
7161 if (s->tree != NULL && s->tree != s->root)
7162 got_object_tree_close(s->tree);
7163 if (s->root)
7164 got_object_tree_close(s->root);
7165 return NULL;
7166 }
7167
7168 static const struct got_error *
7169 search_start_tree_view(struct tog_view *view)
7170 {
7171 struct tog_tree_view_state *s = &view->state.tree;
7172
7173 s->matched_entry = NULL;
7174 return NULL;
7175 }
7176
7177 static int
7178 match_tree_entry(struct got_tree_entry *te, regex_t *regex)
7179 {
7180 regmatch_t regmatch;
7181
7182 return regexec(regex, got_tree_entry_get_name(te), 1, &regmatch,
7183 0) == 0;
7184 }
7185
7186 static const struct got_error *
7187 search_next_tree_view(struct tog_view *view)
7188 {
7189 struct tog_tree_view_state *s = &view->state.tree;
7190 struct got_tree_entry *te = NULL;
7191
7192 if (!view->searching) {
7193 view->search_next_done = TOG_SEARCH_HAVE_MORE;
7194 return NULL;
7195 }
7196
7197 if (s->matched_entry) {
7198 if (view->searching == TOG_SEARCH_FORWARD) {
7199 if (s->selected_entry)
7200 te = got_tree_entry_get_next(s->tree,
7201 s->selected_entry);
7202 else
7203 te = got_object_tree_get_first_entry(s->tree);
7204 } else {
7205 if (s->selected_entry == NULL)
7206 te = got_object_tree_get_last_entry(s->tree);
7207 else
7208 te = got_tree_entry_get_prev(s->tree,
7209 s->selected_entry);
7210 }
7211 } else {
7212 if (s->selected_entry)
7213 te = s->selected_entry;
7214 else if (view->searching == TOG_SEARCH_FORWARD)
7215 te = got_object_tree_get_first_entry(s->tree);
7216 else
7217 te = got_object_tree_get_last_entry(s->tree);
7218 }
7219
7220 while (1) {
7221 if (te == NULL) {
7222 if (s->matched_entry == NULL) {
7223 view->search_next_done = TOG_SEARCH_HAVE_MORE;
7224 return NULL;
7225 }
7226 if (view->searching == TOG_SEARCH_FORWARD)
7227 te = got_object_tree_get_first_entry(s->tree);
7228 else
7229 te = got_object_tree_get_last_entry(s->tree);
7230 }
7231
7232 if (match_tree_entry(te, &view->regex)) {
7233 view->search_next_done = TOG_SEARCH_HAVE_MORE;
7234 s->matched_entry = te;
7235 break;
7236 }
7237
7238 if (view->searching == TOG_SEARCH_FORWARD)
7239 te = got_tree_entry_get_next(s->tree, te);
7240 else
7241 te = got_tree_entry_get_prev(s->tree, te);
7242 }
7243
7244 if (s->matched_entry) {
7245 s->first_displayed_entry = s->matched_entry;
7246 s->selected = 0;
7247 }
7248
7249 return NULL;
7250 }
7251
7252 static const struct got_error *
7253 show_tree_view(struct tog_view *view)
7254 {
7255 const struct got_error *err = NULL;
7256 struct tog_tree_view_state *s = &view->state.tree;
7257 char *parent_path;
7258
7259 err = tree_entry_path(&parent_path, &s->parents, NULL);
7260 if (err)
7261 return err;
7262
7263 err = draw_tree_entries(view, parent_path);
7264 free(parent_path);
7265
7266 view_border(view);
7267 return err;
7268 }
7269
7270 static const struct got_error *
7271 tree_goto_line(struct tog_view *view, int nlines)
7272 {
7273 const struct got_error *err = NULL;
7274 struct tog_tree_view_state *s = &view->state.tree;
7275 struct got_tree_entry **fte, **lte, **ste;
7276 int g, last, first = 1, i = 1;
7277 int root = s->tree == s->root;
7278 int off = root ? 1 : 2;
7279
7280 g = view->gline;
7281 view->gline = 0;
7282
7283 if (g == 0)
7284 g = 1;
7285 else if (g > got_object_tree_get_nentries(s->tree))
7286 g = got_object_tree_get_nentries(s->tree) + (root ? 0 : 1);
7287
7288 fte = &s->first_displayed_entry;
7289 lte = &s->last_displayed_entry;
7290 ste = &s->selected_entry;
7291
7292 if (*fte != NULL) {
7293 first = got_tree_entry_get_index(*fte);
7294 first += off; /* account for ".." */
7295 }
7296 last = got_tree_entry_get_index(*lte);
7297 last += off;
7298
7299 if (g >= first && g <= last && g - first < nlines) {
7300 s->selected = g - first;
7301 return NULL; /* gline is on the current page */
7302 }
7303
7304 if (*ste != NULL) {
7305 i = got_tree_entry_get_index(*ste);
7306 i += off;
7307 }
7308
7309 if (i < g) {
7310 err = tree_scroll_down(view, g - i);
7311 if (err)
7312 return err;
7313 if (got_tree_entry_get_index(*lte) >=
7314 got_object_tree_get_nentries(s->tree) - 1 &&
7315 first + s->selected < g &&
7316 s->selected < s->ndisplayed - 1) {
7317 first = got_tree_entry_get_index(*fte);
7318 first += off;
7319 s->selected = g - first;
7320 }
7321 } else if (i > g)
7322 tree_scroll_up(s, i - g);
7323
7324 if (g < nlines &&
7325 (*fte == NULL || (root && !got_tree_entry_get_index(*fte))))
7326 s->selected = g - 1;
7327
7328 return NULL;
7329 }
7330
7331 static const struct got_error *
7332 input_tree_view(struct tog_view **new_view, struct tog_view *view, int ch)
7333 {
7334 const struct got_error *err = NULL;
7335 struct tog_tree_view_state *s = &view->state.tree;
7336 struct got_tree_entry *te;
7337 int n, nscroll = view->nlines - 3;
7338
7339 if (view->gline)
7340 return tree_goto_line(view, nscroll);
7341
7342 switch (ch) {
7343 case 'i':
7344 s->show_ids = !s->show_ids;
7345 view->count = 0;
7346 break;
7347 case 'L':
7348 view->count = 0;
7349 if (!s->selected_entry)
7350 break;
7351 err = view_request_new(new_view, view, TOG_VIEW_LOG);
7352 break;
7353 case 'R':
7354 view->count = 0;
7355 err = view_request_new(new_view, view, TOG_VIEW_REF);
7356 break;
7357 case 'g':
7358 case KEY_HOME:
7359 s->selected = 0;
7360 view->count = 0;
7361 if (s->tree == s->root)
7362 s->first_displayed_entry =
7363 got_object_tree_get_first_entry(s->tree);
7364 else
7365 s->first_displayed_entry = NULL;
7366 break;
7367 case 'G':
7368 case KEY_END: {
7369 int eos = view->nlines - 3;
7370
7371 if (view->mode == TOG_VIEW_SPLIT_HRZN)
7372 --eos; /* border */
7373 s->selected = 0;
7374 view->count = 0;
7375 te = got_object_tree_get_last_entry(s->tree);
7376 for (n = 0; n < eos; n++) {
7377 if (te == NULL) {
7378 if (s->tree != s->root) {
7379 s->first_displayed_entry = NULL;
7380 n++;
7381 }
7382 break;
7383 }
7384 s->first_displayed_entry = te;
7385 te = got_tree_entry_get_prev(s->tree, te);
7386 }
7387 if (n > 0)
7388 s->selected = n - 1;
7389 break;
7390 }
7391 case 'k':
7392 case KEY_UP:
7393 case CTRL('p'):
7394 if (s->selected > 0) {
7395 s->selected--;
7396 break;
7397 }
7398 tree_scroll_up(s, 1);
7399 if (s->selected_entry == NULL ||
7400 (s->tree == s->root && s->selected_entry ==
7401 got_object_tree_get_first_entry(s->tree)))
7402 view->count = 0;
7403 break;
7404 case CTRL('u'):
7405 case 'u':
7406 nscroll /= 2;
7407 /* FALL THROUGH */
7408 case KEY_PPAGE:
7409 case CTRL('b'):
7410 case 'b':
7411 if (s->tree == s->root) {
7412 if (got_object_tree_get_first_entry(s->tree) ==
7413 s->first_displayed_entry)
7414 s->selected -= MIN(s->selected, nscroll);
7415 } else {
7416 if (s->first_displayed_entry == NULL)
7417 s->selected -= MIN(s->selected, nscroll);
7418 }
7419 tree_scroll_up(s, MAX(0, nscroll));
7420 if (s->selected_entry == NULL ||
7421 (s->tree == s->root && s->selected_entry ==
7422 got_object_tree_get_first_entry(s->tree)))
7423 view->count = 0;
7424 break;
7425 case 'j':
7426 case KEY_DOWN:
7427 case CTRL('n'):
7428 if (s->selected < s->ndisplayed - 1) {
7429 s->selected++;
7430 break;
7431 }
7432 if (got_tree_entry_get_next(s->tree, s->last_displayed_entry)
7433 == NULL) {
7434 /* can't scroll any further */
7435 view->count = 0;
7436 break;
7437 }
7438 tree_scroll_down(view, 1);
7439 break;
7440 case CTRL('d'):
7441 case 'd':
7442 nscroll /= 2;
7443 /* FALL THROUGH */
7444 case KEY_NPAGE:
7445 case CTRL('f'):
7446 case 'f':
7447 case ' ':
7448 if (got_tree_entry_get_next(s->tree, s->last_displayed_entry)
7449 == NULL) {
7450 /* can't scroll any further; move cursor down */
7451 if (s->selected < s->ndisplayed - 1)
7452 s->selected += MIN(nscroll,
7453 s->ndisplayed - s->selected - 1);
7454 else
7455 view->count = 0;
7456 break;
7457 }
7458 tree_scroll_down(view, nscroll);
7459 break;
7460 case KEY_ENTER:
7461 case '\r':
7462 case KEY_BACKSPACE:
7463 if (s->selected_entry == NULL || ch == KEY_BACKSPACE) {
7464 struct tog_parent_tree *parent;
7465 /* user selected '..' */
7466 if (s->tree == s->root) {
7467 view->count = 0;
7468 break;
7469 }
7470 parent = TAILQ_FIRST(&s->parents);
7471 TAILQ_REMOVE(&s->parents, parent,
7472 entry);
7473 got_object_tree_close(s->tree);
7474 s->tree = parent->tree;
7475 s->first_displayed_entry =
7476 parent->first_displayed_entry;
7477 s->selected_entry =
7478 parent->selected_entry;
7479 s->selected = parent->selected;
7480 if (s->selected > view->nlines - 3) {
7481 err = offset_selection_down(view);
7482 if (err)
7483 break;
7484 }
7485 free(parent);
7486 } else if (S_ISDIR(got_tree_entry_get_mode(
7487 s->selected_entry))) {
7488 struct got_tree_object *subtree;
7489 view->count = 0;
7490 err = got_object_open_as_tree(&subtree, s->repo,
7491 got_tree_entry_get_id(s->selected_entry));
7492 if (err)
7493 break;
7494 err = tree_view_visit_subtree(s, subtree);
7495 if (err) {
7496 got_object_tree_close(subtree);
7497 break;
7498 }
7499 } else if (S_ISREG(got_tree_entry_get_mode(s->selected_entry)))
7500 err = view_request_new(new_view, view, TOG_VIEW_BLAME);
7501 break;
7502 case KEY_RESIZE:
7503 if (view->nlines >= 4 && s->selected >= view->nlines - 3)
7504 s->selected = view->nlines - 4;
7505 view->count = 0;
7506 break;
7507 default:
7508 view->count = 0;
7509 break;
7510 }
7511
7512 return err;
7513 }
7514
7515 __dead static void
7516 usage_tree(void)
7517 {
7518 endwin();
7519 fprintf(stderr,
7520 "usage: %s tree [-c commit] [-r repository-path] [path]\n",
7521 getprogname());
7522 exit(1);
7523 }
7524
7525 static const struct got_error *
7526 cmd_tree(int argc, char *argv[])
7527 {
7528 const struct got_error *error;
7529 struct got_repository *repo = NULL;
7530 struct got_worktree *worktree = NULL;
7531 char *cwd = NULL, *repo_path = NULL, *in_repo_path = NULL;
7532 struct got_object_id *commit_id = NULL;
7533 struct got_commit_object *commit = NULL;
7534 const char *commit_id_arg = NULL;
7535 char *label = NULL;
7536 struct got_reference *ref = NULL;
7537 const char *head_ref_name = NULL;
7538 int ch;
7539 struct tog_view *view;
7540 int *pack_fds = NULL;
7541
7542 while ((ch = getopt(argc, argv, "c:r:")) != -1) {
7543 switch (ch) {
7544 case 'c':
7545 commit_id_arg = optarg;
7546 break;
7547 case 'r':
7548 repo_path = realpath(optarg, NULL);
7549 if (repo_path == NULL)
7550 return got_error_from_errno2("realpath",
7551 optarg);
7552 break;
7553 default:
7554 usage_tree();
7555 /* NOTREACHED */
7556 }
7557 }
7558
7559 argc -= optind;
7560 argv += optind;
7561
7562 if (argc > 1)
7563 usage_tree();
7564
7565 error = got_repo_pack_fds_open(&pack_fds);
7566 if (error != NULL)
7567 goto done;
7568
7569 if (repo_path == NULL) {
7570 cwd = getcwd(NULL, 0);
7571 if (cwd == NULL)
7572 return got_error_from_errno("getcwd");
7573 error = got_worktree_open(&worktree, cwd);
7574 if (error && error->code != GOT_ERR_NOT_WORKTREE)
7575 goto done;
7576 if (worktree)
7577 repo_path =
7578 strdup(got_worktree_get_repo_path(worktree));
7579 else
7580 repo_path = strdup(cwd);
7581 if (repo_path == NULL) {
7582 error = got_error_from_errno("strdup");
7583 goto done;
7584 }
7585 }
7586
7587 error = got_repo_open(&repo, repo_path, NULL, pack_fds);
7588 if (error != NULL)
7589 goto done;
7590
7591 error = get_in_repo_path_from_argv0(&in_repo_path, argc, argv,
7592 repo, worktree);
7593 if (error)
7594 goto done;
7595
7596 init_curses();
7597
7598 error = apply_unveil(got_repo_get_path(repo), NULL);
7599 if (error)
7600 goto done;
7601
7602 error = tog_load_refs(repo, 0);
7603 if (error)
7604 goto done;
7605
7606 if (commit_id_arg == NULL) {
7607 error = got_repo_match_object_id(&commit_id, &label,
7608 worktree ? got_worktree_get_head_ref_name(worktree) :
7609 GOT_REF_HEAD, GOT_OBJ_TYPE_COMMIT, &tog_refs, repo);
7610 if (error)
7611 goto done;
7612 head_ref_name = label;
7613 } else {
7614 error = got_ref_open(&ref, repo, commit_id_arg, 0);
7615 if (error == NULL)
7616 head_ref_name = got_ref_get_name(ref);
7617 else if (error->code != GOT_ERR_NOT_REF)
7618 goto done;
7619 error = got_repo_match_object_id(&commit_id, NULL,
7620 commit_id_arg, GOT_OBJ_TYPE_COMMIT, &tog_refs, repo);
7621 if (error)
7622 goto done;
7623 }
7624
7625 error = got_object_open_as_commit(&commit, repo, commit_id);
7626 if (error)
7627 goto done;
7628
7629 view = view_open(0, 0, 0, 0, TOG_VIEW_TREE);
7630 if (view == NULL) {
7631 error = got_error_from_errno("view_open");
7632 goto done;
7633 }
7634 error = open_tree_view(view, commit_id, head_ref_name, repo);
7635 if (error)
7636 goto done;
7637 if (!got_path_is_root_dir(in_repo_path)) {
7638 error = tree_view_walk_path(&view->state.tree, commit,
7639 in_repo_path);
7640 if (error)
7641 goto done;
7642 }
7643
7644 if (worktree) {
7645 /* Release work tree lock. */
7646 got_worktree_close(worktree);
7647 worktree = NULL;
7648 }
7649 error = view_loop(view);
7650 done:
7651 free(repo_path);
7652 free(cwd);
7653 free(commit_id);
7654 free(label);
7655 if (ref)
7656 got_ref_close(ref);
7657 if (repo) {
7658 const struct got_error *close_err = got_repo_close(repo);
7659 if (error == NULL)
7660 error = close_err;
7661 }
7662 if (pack_fds) {
7663 const struct got_error *pack_err =
7664 got_repo_pack_fds_close(pack_fds);
7665 if (error == NULL)
7666 error = pack_err;
7667 }
7668 tog_free_refs();
7669 return error;
7670 }
7671
7672 static const struct got_error *
7673 ref_view_load_refs(struct tog_ref_view_state *s)
7674 {
7675 struct got_reflist_entry *sre;
7676 struct tog_reflist_entry *re;
7677
7678 s->nrefs = 0;
7679 TAILQ_FOREACH(sre, &tog_refs, entry) {
7680 if (strncmp(got_ref_get_name(sre->ref),
7681 "refs/got/", 9) == 0 &&
7682 strncmp(got_ref_get_name(sre->ref),
7683 "refs/got/backup/", 16) != 0)
7684 continue;
7685
7686 re = malloc(sizeof(*re));
7687 if (re == NULL)
7688 return got_error_from_errno("malloc");
7689
7690 re->ref = got_ref_dup(sre->ref);
7691 if (re->ref == NULL)
7692 return got_error_from_errno("got_ref_dup");
7693 re->idx = s->nrefs++;
7694 TAILQ_INSERT_TAIL(&s->refs, re, entry);
7695 }
7696
7697 s->first_displayed_entry = TAILQ_FIRST(&s->refs);
7698 return NULL;
7699 }
7700
7701 static void
7702 ref_view_free_refs(struct tog_ref_view_state *s)
7703 {
7704 struct tog_reflist_entry *re;
7705
7706 while (!TAILQ_EMPTY(&s->refs)) {
7707 re = TAILQ_FIRST(&s->refs);
7708 TAILQ_REMOVE(&s->refs, re, entry);
7709 got_ref_close(re->ref);
7710 free(re);
7711 }
7712 }
7713
7714 static const struct got_error *
7715 open_ref_view(struct tog_view *view, struct got_repository *repo)
7716 {
7717 const struct got_error *err = NULL;
7718 struct tog_ref_view_state *s = &view->state.ref;
7719
7720 s->selected_entry = 0;
7721 s->repo = repo;
7722
7723 TAILQ_INIT(&s->refs);
7724 STAILQ_INIT(&s->colors);
7725
7726 err = ref_view_load_refs(s);
7727 if (err)
7728 return err;
7729
7730 if (has_colors() && getenv("TOG_COLORS") != NULL) {
7731 err = add_color(&s->colors, "^refs/heads/",
7732 TOG_COLOR_REFS_HEADS,
7733 get_color_value("TOG_COLOR_REFS_HEADS"));
7734 if (err)
7735 goto done;
7736
7737 err = add_color(&s->colors, "^refs/tags/",
7738 TOG_COLOR_REFS_TAGS,
7739 get_color_value("TOG_COLOR_REFS_TAGS"));
7740 if (err)
7741 goto done;
7742
7743 err = add_color(&s->colors, "^refs/remotes/",
7744 TOG_COLOR_REFS_REMOTES,
7745 get_color_value("TOG_COLOR_REFS_REMOTES"));
7746 if (err)
7747 goto done;
7748
7749 err = add_color(&s->colors, "^refs/got/backup/",
7750 TOG_COLOR_REFS_BACKUP,
7751 get_color_value("TOG_COLOR_REFS_BACKUP"));
7752 if (err)
7753 goto done;
7754 }
7755
7756 view->show = show_ref_view;
7757 view->input = input_ref_view;
7758 view->close = close_ref_view;
7759 view->search_start = search_start_ref_view;
7760 view->search_next = search_next_ref_view;
7761 done:
7762 if (err)
7763 free_colors(&s->colors);
7764 return err;
7765 }
7766
7767 static const struct got_error *
7768 close_ref_view(struct tog_view *view)
7769 {
7770 struct tog_ref_view_state *s = &view->state.ref;
7771
7772 ref_view_free_refs(s);
7773 free_colors(&s->colors);
7774
7775 return NULL;
7776 }
7777
7778 static const struct got_error *
7779 resolve_reflist_entry(struct got_object_id **commit_id,
7780 struct tog_reflist_entry *re, struct got_repository *repo)
7781 {
7782 const struct got_error *err = NULL;
7783 struct got_object_id *obj_id;
7784 struct got_tag_object *tag = NULL;
7785 int obj_type;
7786
7787 *commit_id = NULL;
7788
7789 err = got_ref_resolve(&obj_id, repo, re->ref);
7790 if (err)
7791 return err;
7792
7793 err = got_object_get_type(&obj_type, repo, obj_id);
7794 if (err)
7795 goto done;
7796
7797 switch (obj_type) {
7798 case GOT_OBJ_TYPE_COMMIT:
7799 *commit_id = obj_id;
7800 break;
7801 case GOT_OBJ_TYPE_TAG:
7802 err = got_object_open_as_tag(&tag, repo, obj_id);
7803 if (err)
7804 goto done;
7805 free(obj_id);
7806 err = got_object_get_type(&obj_type, repo,
7807 got_object_tag_get_object_id(tag));
7808 if (err)
7809 goto done;
7810 if (obj_type != GOT_OBJ_TYPE_COMMIT) {
7811 err = got_error(GOT_ERR_OBJ_TYPE);
7812 goto done;
7813 }
7814 *commit_id = got_object_id_dup(
7815 got_object_tag_get_object_id(tag));
7816 if (*commit_id == NULL) {
7817 err = got_error_from_errno("got_object_id_dup");
7818 goto done;
7819 }
7820 break;
7821 default:
7822 err = got_error(GOT_ERR_OBJ_TYPE);
7823 break;
7824 }
7825
7826 done:
7827 if (tag)
7828 got_object_tag_close(tag);
7829 if (err) {
7830 free(*commit_id);
7831 *commit_id = NULL;
7832 }
7833 return err;
7834 }
7835
7836 static const struct got_error *
7837 log_ref_entry(struct tog_view **new_view, int begin_y, int begin_x,
7838 struct tog_reflist_entry *re, struct got_repository *repo)
7839 {
7840 struct tog_view *log_view;
7841 const struct got_error *err = NULL;
7842 struct got_object_id *commit_id = NULL;
7843
7844 *new_view = NULL;
7845
7846 err = resolve_reflist_entry(&commit_id, re, repo);
7847 if (err) {
7848 if (err->code != GOT_ERR_OBJ_TYPE)
7849 return err;
7850 else
7851 return NULL;
7852 }
7853
7854 log_view = view_open(0, 0, begin_y, begin_x, TOG_VIEW_LOG);
7855 if (log_view == NULL) {
7856 err = got_error_from_errno("view_open");
7857 goto done;
7858 }
7859
7860 err = open_log_view(log_view, commit_id, repo,
7861 got_ref_get_name(re->ref), "", 0);
7862 done:
7863 if (err)
7864 view_close(log_view);
7865 else
7866 *new_view = log_view;
7867 free(commit_id);
7868 return err;
7869 }
7870
7871 static void
7872 ref_scroll_up(struct tog_ref_view_state *s, int maxscroll)
7873 {
7874 struct tog_reflist_entry *re;
7875 int i = 0;
7876
7877 if (s->first_displayed_entry == TAILQ_FIRST(&s->refs))
7878 return;
7879
7880 re = TAILQ_PREV(s->first_displayed_entry, tog_reflist_head, entry);
7881 while (i++ < maxscroll) {
7882 if (re == NULL)
7883 break;
7884 s->first_displayed_entry = re;
7885 re = TAILQ_PREV(re, tog_reflist_head, entry);
7886 }
7887 }
7888
7889 static const struct got_error *
7890 ref_scroll_down(struct tog_view *view, int maxscroll)
7891 {
7892 struct tog_ref_view_state *s = &view->state.ref;
7893 struct tog_reflist_entry *next, *last;
7894 int n = 0;
7895
7896 if (s->first_displayed_entry)
7897 next = TAILQ_NEXT(s->first_displayed_entry, entry);
7898 else
7899 next = TAILQ_FIRST(&s->refs);
7900
7901 last = s->last_displayed_entry;
7902 while (next && n++ < maxscroll) {
7903 if (last) {
7904 s->last_displayed_entry = last;
7905 last = TAILQ_NEXT(last, entry);
7906 }
7907 if (last || (view->mode == TOG_VIEW_SPLIT_HRZN)) {
7908 s->first_displayed_entry = next;
7909 next = TAILQ_NEXT(next, entry);
7910 }
7911 }
7912
7913 return NULL;
7914 }
7915
7916 static const struct got_error *
7917 search_start_ref_view(struct tog_view *view)
7918 {
7919 struct tog_ref_view_state *s = &view->state.ref;
7920
7921 s->matched_entry = NULL;
7922 return NULL;
7923 }
7924
7925 static int
7926 match_reflist_entry(struct tog_reflist_entry *re, regex_t *regex)
7927 {
7928 regmatch_t regmatch;
7929
7930 return regexec(regex, got_ref_get_name(re->ref), 1, &regmatch,
7931 0) == 0;
7932 }
7933
7934 static const struct got_error *
7935 search_next_ref_view(struct tog_view *view)
7936 {
7937 struct tog_ref_view_state *s = &view->state.ref;
7938 struct tog_reflist_entry *re = NULL;
7939
7940 if (!view->searching) {
7941 view->search_next_done = TOG_SEARCH_HAVE_MORE;
7942 return NULL;
7943 }
7944
7945 if (s->matched_entry) {
7946 if (view->searching == TOG_SEARCH_FORWARD) {
7947 if (s->selected_entry)
7948 re = TAILQ_NEXT(s->selected_entry, entry);
7949 else
7950 re = TAILQ_PREV(s->selected_entry,
7951 tog_reflist_head, entry);
7952 } else {
7953 if (s->selected_entry == NULL)
7954 re = TAILQ_LAST(&s->refs, tog_reflist_head);
7955 else
7956 re = TAILQ_PREV(s->selected_entry,
7957 tog_reflist_head, entry);
7958 }
7959 } else {
7960 if (s->selected_entry)
7961 re = s->selected_entry;
7962 else if (view->searching == TOG_SEARCH_FORWARD)
7963 re = TAILQ_FIRST(&s->refs);
7964 else
7965 re = TAILQ_LAST(&s->refs, tog_reflist_head);
7966 }
7967
7968 while (1) {
7969 if (re == NULL) {
7970 if (s->matched_entry == NULL) {
7971 view->search_next_done = TOG_SEARCH_HAVE_MORE;
7972 return NULL;
7973 }
7974 if (view->searching == TOG_SEARCH_FORWARD)
7975 re = TAILQ_FIRST(&s->refs);
7976 else
7977 re = TAILQ_LAST(&s->refs, tog_reflist_head);
7978 }
7979
7980 if (match_reflist_entry(re, &view->regex)) {
7981 view->search_next_done = TOG_SEARCH_HAVE_MORE;
7982 s->matched_entry = re;
7983 break;
7984 }
7985
7986 if (view->searching == TOG_SEARCH_FORWARD)
7987 re = TAILQ_NEXT(re, entry);
7988 else
7989 re = TAILQ_PREV(re, tog_reflist_head, entry);
7990 }
7991
7992 if (s->matched_entry) {
7993 s->first_displayed_entry = s->matched_entry;
7994 s->selected = 0;
7995 }
7996
7997 return NULL;
7998 }
7999
8000 static const struct got_error *
8001 show_ref_view(struct tog_view *view)
8002 {
8003 const struct got_error *err = NULL;
8004 struct tog_ref_view_state *s = &view->state.ref;
8005 struct tog_reflist_entry *re;
8006 char *line = NULL;
8007 wchar_t *wline;
8008 struct tog_color *tc;
8009 int width, n;
8010 int limit = view->nlines;
8011
8012 werase(view->window);
8013
8014 s->ndisplayed = 0;
8015 if (view_is_hsplit_top(view))
8016 --limit; /* border */
8017
8018 if (limit == 0)
8019 return NULL;
8020
8021 re = s->first_displayed_entry;
8022
8023 if (asprintf(&line, "references [%d/%d]", re->idx + s->selected + 1,
8024 s->nrefs) == -1)
8025 return got_error_from_errno("asprintf");
8026
8027 err = format_line(&wline, &width, NULL, line, 0, view->ncols, 0, 0);
8028 if (err) {
8029 free(line);
8030 return err;
8031 }
8032 if (view_needs_focus_indication(view))
8033 wstandout(view->window);
8034 waddwstr(view->window, wline);
8035 while (width++ < view->ncols)
8036 waddch(view->window, ' ');
8037 if (view_needs_focus_indication(view))
8038 wstandend(view->window);
8039 free(wline);
8040 wline = NULL;
8041 free(line);
8042 line = NULL;
8043 if (--limit <= 0)
8044 return NULL;
8045
8046 n = 0;
8047 while (re && limit > 0) {
8048 char *line = NULL;
8049 char ymd[13]; /* YYYY-MM-DD + " " + NUL */
8050
8051 if (s->show_date) {
8052 struct got_commit_object *ci;
8053 struct got_tag_object *tag;
8054 struct got_object_id *id;
8055 struct tm tm;
8056 time_t t;
8057
8058 err = got_ref_resolve(&id, s->repo, re->ref);
8059 if (err)
8060 return err;
8061 err = got_object_open_as_tag(&tag, s->repo, id);
8062 if (err) {
8063 if (err->code != GOT_ERR_OBJ_TYPE) {
8064 free(id);
8065 return err;
8066 }
8067 err = got_object_open_as_commit(&ci, s->repo,
8068 id);
8069 if (err) {
8070 free(id);
8071 return err;
8072 }
8073 t = got_object_commit_get_committer_time(ci);
8074 got_object_commit_close(ci);
8075 } else {
8076 t = got_object_tag_get_tagger_time(tag);
8077 got_object_tag_close(tag);
8078 }
8079 free(id);
8080 if (gmtime_r(&t, &tm) == NULL)
8081 return got_error_from_errno("gmtime_r");
8082 if (strftime(ymd, sizeof(ymd), "%G-%m-%d ", &tm) == 0)
8083 return got_error(GOT_ERR_NO_SPACE);
8084 }
8085 if (got_ref_is_symbolic(re->ref)) {
8086 if (asprintf(&line, "%s%s -> %s", s->show_date ?
8087 ymd : "", got_ref_get_name(re->ref),
8088 got_ref_get_symref_target(re->ref)) == -1)
8089 return got_error_from_errno("asprintf");
8090 } else if (s->show_ids) {
8091 struct got_object_id *id;
8092 char *id_str;
8093 err = got_ref_resolve(&id, s->repo, re->ref);
8094 if (err)
8095 return err;
8096 err = got_object_id_str(&id_str, id);
8097 if (err) {
8098 free(id);
8099 return err;
8100 }
8101 if (asprintf(&line, "%s%s: %s", s->show_date ? ymd : "",
8102 got_ref_get_name(re->ref), id_str) == -1) {
8103 err = got_error_from_errno("asprintf");
8104 free(id);
8105 free(id_str);
8106 return err;
8107 }
8108 free(id);
8109 free(id_str);
8110 } else if (asprintf(&line, "%s%s", s->show_date ? ymd : "",
8111 got_ref_get_name(re->ref)) == -1)
8112 return got_error_from_errno("asprintf");
8113
8114 err = format_line(&wline, &width, NULL, line, 0, view->ncols,
8115 0, 0);
8116 if (err) {
8117 free(line);
8118 return err;
8119 }
8120 if (n == s->selected) {
8121 if (view->focussed)
8122 wstandout(view->window);
8123 s->selected_entry = re;
8124 }
8125 tc = match_color(&s->colors, got_ref_get_name(re->ref));
8126 if (tc)
8127 wattr_on(view->window,
8128 COLOR_PAIR(tc->colorpair), NULL);
8129 waddwstr(view->window, wline);
8130 if (tc)
8131 wattr_off(view->window,
8132 COLOR_PAIR(tc->colorpair), NULL);
8133 if (width < view->ncols - 1)
8134 waddch(view->window, '\n');
8135 if (n == s->selected && view->focussed)
8136 wstandend(view->window);
8137 free(line);
8138 free(wline);
8139 wline = NULL;
8140 n++;
8141 s->ndisplayed++;
8142 s->last_displayed_entry = re;
8143
8144 limit--;
8145 re = TAILQ_NEXT(re, entry);
8146 }
8147
8148 view_border(view);
8149 return err;
8150 }
8151
8152 static const struct got_error *
8153 browse_ref_tree(struct tog_view **new_view, int begin_y, int begin_x,
8154 struct tog_reflist_entry *re, struct got_repository *repo)
8155 {
8156 const struct got_error *err = NULL;
8157 struct got_object_id *commit_id = NULL;
8158 struct tog_view *tree_view;
8159
8160 *new_view = NULL;
8161
8162 err = resolve_reflist_entry(&commit_id, re, repo);
8163 if (err) {
8164 if (err->code != GOT_ERR_OBJ_TYPE)
8165 return err;
8166 else
8167 return NULL;
8168 }
8169
8170
8171 tree_view = view_open(0, 0, begin_y, begin_x, TOG_VIEW_TREE);
8172 if (tree_view == NULL) {
8173 err = got_error_from_errno("view_open");
8174 goto done;
8175 }
8176
8177 err = open_tree_view(tree_view, commit_id,
8178 got_ref_get_name(re->ref), repo);
8179 if (err)
8180 goto done;
8181
8182 *new_view = tree_view;
8183 done:
8184 free(commit_id);
8185 return err;
8186 }
8187
8188 static const struct got_error *
8189 ref_goto_line(struct tog_view *view, int nlines)
8190 {
8191 const struct got_error *err = NULL;
8192 struct tog_ref_view_state *s = &view->state.ref;
8193 int g, idx = s->selected_entry->idx;
8194
8195 g = view->gline;
8196 view->gline = 0;
8197
8198 if (g == 0)
8199 g = 1;
8200 else if (g > s->nrefs)
8201 g = s->nrefs;
8202
8203 if (g >= s->first_displayed_entry->idx + 1 &&
8204 g <= s->last_displayed_entry->idx + 1 &&
8205 g - s->first_displayed_entry->idx - 1 < nlines) {
8206 s->selected = g - s->first_displayed_entry->idx - 1;
8207 return NULL;
8208 }
8209
8210 if (idx + 1 < g) {
8211 err = ref_scroll_down(view, g - idx - 1);
8212 if (err)
8213 return err;
8214 if (TAILQ_NEXT(s->last_displayed_entry, entry) == NULL &&
8215 s->first_displayed_entry->idx + s->selected < g &&
8216 s->selected < s->ndisplayed - 1)
8217 s->selected = g - s->first_displayed_entry->idx - 1;
8218 } else if (idx + 1 > g)
8219 ref_scroll_up(s, idx - g + 1);
8220
8221 if (g < nlines && s->first_displayed_entry->idx == 0)
8222 s->selected = g - 1;
8223
8224 return NULL;
8225
8226 }
8227
8228 static const struct got_error *
8229 input_ref_view(struct tog_view **new_view, struct tog_view *view, int ch)
8230 {
8231 const struct got_error *err = NULL;
8232 struct tog_ref_view_state *s = &view->state.ref;
8233 struct tog_reflist_entry *re;
8234 int n, nscroll = view->nlines - 1;
8235
8236 if (view->gline)
8237 return ref_goto_line(view, nscroll);
8238
8239 switch (ch) {
8240 case 'i':
8241 s->show_ids = !s->show_ids;
8242 view->count = 0;
8243 break;
8244 case 'm':
8245 s->show_date = !s->show_date;
8246 view->count = 0;
8247 break;
8248 case 'o':
8249 s->sort_by_date = !s->sort_by_date;
8250 view->count = 0;
8251 err = got_reflist_sort(&tog_refs, s->sort_by_date ?
8252 got_ref_cmp_by_commit_timestamp_descending :
8253 tog_ref_cmp_by_name, s->repo);
8254 if (err)
8255 break;
8256 got_reflist_object_id_map_free(tog_refs_idmap);
8257 err = got_reflist_object_id_map_create(&tog_refs_idmap,
8258 &tog_refs, s->repo);
8259 if (err)
8260 break;
8261 ref_view_free_refs(s);
8262 err = ref_view_load_refs(s);
8263 break;
8264 case KEY_ENTER:
8265 case '\r':
8266 view->count = 0;
8267 if (!s->selected_entry)
8268 break;
8269 err = view_request_new(new_view, view, TOG_VIEW_LOG);
8270 break;
8271 case 'T':
8272 view->count = 0;
8273 if (!s->selected_entry)
8274 break;
8275 err = view_request_new(new_view, view, TOG_VIEW_TREE);
8276 break;
8277 case 'g':
8278 case KEY_HOME:
8279 s->selected = 0;
8280 view->count = 0;
8281 s->first_displayed_entry = TAILQ_FIRST(&s->refs);
8282 break;
8283 case 'G':
8284 case KEY_END: {
8285 int eos = view->nlines - 1;
8286
8287 if (view->mode == TOG_VIEW_SPLIT_HRZN)
8288 --eos; /* border */
8289 s->selected = 0;
8290 view->count = 0;
8291 re = TAILQ_LAST(&s->refs, tog_reflist_head);
8292 for (n = 0; n < eos; n++) {
8293 if (re == NULL)
8294 break;
8295 s->first_displayed_entry = re;
8296 re = TAILQ_PREV(re, tog_reflist_head, entry);
8297 }
8298 if (n > 0)
8299 s->selected = n - 1;
8300 break;
8301 }
8302 case 'k':
8303 case KEY_UP:
8304 case CTRL('p'):
8305 if (s->selected > 0) {
8306 s->selected--;
8307 break;
8308 }
8309 ref_scroll_up(s, 1);
8310 if (s->selected_entry == TAILQ_FIRST(&s->refs))
8311 view->count = 0;
8312 break;
8313 case CTRL('u'):
8314 case 'u':
8315 nscroll /= 2;
8316 /* FALL THROUGH */
8317 case KEY_PPAGE:
8318 case CTRL('b'):
8319 case 'b':
8320 if (s->first_displayed_entry == TAILQ_FIRST(&s->refs))
8321 s->selected -= MIN(nscroll, s->selected);
8322 ref_scroll_up(s, MAX(0, nscroll));
8323 if (s->selected_entry == TAILQ_FIRST(&s->refs))
8324 view->count = 0;
8325 break;
8326 case 'j':
8327 case KEY_DOWN:
8328 case CTRL('n'):
8329 if (s->selected < s->ndisplayed - 1) {
8330 s->selected++;
8331 break;
8332 }
8333 if (TAILQ_NEXT(s->last_displayed_entry, entry) == NULL) {
8334 /* can't scroll any further */
8335 view->count = 0;
8336 break;
8337 }
8338 ref_scroll_down(view, 1);
8339 break;
8340 case CTRL('d'):
8341 case 'd':
8342 nscroll /= 2;
8343 /* FALL THROUGH */
8344 case KEY_NPAGE:
8345 case CTRL('f'):
8346 case 'f':
8347 case ' ':
8348 if (TAILQ_NEXT(s->last_displayed_entry, entry) == NULL) {
8349 /* can't scroll any further; move cursor down */
8350 if (s->selected < s->ndisplayed - 1)
8351 s->selected += MIN(nscroll,
8352 s->ndisplayed - s->selected - 1);
8353 if (view->count > 1 && s->selected < s->ndisplayed - 1)
8354 s->selected += s->ndisplayed - s->selected - 1;
8355 view->count = 0;
8356 break;
8357 }
8358 ref_scroll_down(view, nscroll);
8359 break;
8360 case CTRL('l'):
8361 view->count = 0;
8362 tog_free_refs();
8363 err = tog_load_refs(s->repo, s->sort_by_date);
8364 if (err)
8365 break;
8366 ref_view_free_refs(s);
8367 err = ref_view_load_refs(s);
8368 break;
8369 case KEY_RESIZE:
8370 if (view->nlines >= 2 && s->selected >= view->nlines - 1)
8371 s->selected = view->nlines - 2;
8372 break;
8373 default:
8374 view->count = 0;
8375 break;
8376 }
8377
8378 return err;
8379 }
8380
8381 __dead static void
8382 usage_ref(void)
8383 {
8384 endwin();
8385 fprintf(stderr, "usage: %s ref [-r repository-path]\n",
8386 getprogname());
8387 exit(1);
8388 }
8389
8390 static const struct got_error *
8391 cmd_ref(int argc, char *argv[])
8392 {
8393 const struct got_error *error;
8394 struct got_repository *repo = NULL;
8395 struct got_worktree *worktree = NULL;
8396 char *cwd = NULL, *repo_path = NULL;
8397 int ch;
8398 struct tog_view *view;
8399 int *pack_fds = NULL;
8400
8401 while ((ch = getopt(argc, argv, "r:")) != -1) {
8402 switch (ch) {
8403 case 'r':
8404 repo_path = realpath(optarg, NULL);
8405 if (repo_path == NULL)
8406 return got_error_from_errno2("realpath",
8407 optarg);
8408 break;
8409 default:
8410 usage_ref();
8411 /* NOTREACHED */
8412 }
8413 }
8414
8415 argc -= optind;
8416 argv += optind;
8417
8418 if (argc > 1)
8419 usage_ref();
8420
8421 error = got_repo_pack_fds_open(&pack_fds);
8422 if (error != NULL)
8423 goto done;
8424
8425 if (repo_path == NULL) {
8426 cwd = getcwd(NULL, 0);
8427 if (cwd == NULL)
8428 return got_error_from_errno("getcwd");
8429 error = got_worktree_open(&worktree, cwd);
8430 if (error && error->code != GOT_ERR_NOT_WORKTREE)
8431 goto done;
8432 if (worktree)
8433 repo_path =
8434 strdup(got_worktree_get_repo_path(worktree));
8435 else
8436 repo_path = strdup(cwd);
8437 if (repo_path == NULL) {
8438 error = got_error_from_errno("strdup");
8439 goto done;
8440 }
8441 }
8442
8443 error = got_repo_open(&repo, repo_path, NULL, pack_fds);
8444 if (error != NULL)
8445 goto done;
8446
8447 init_curses();
8448
8449 error = apply_unveil(got_repo_get_path(repo), NULL);
8450 if (error)
8451 goto done;
8452
8453 error = tog_load_refs(repo, 0);
8454 if (error)
8455 goto done;
8456
8457 view = view_open(0, 0, 0, 0, TOG_VIEW_REF);
8458 if (view == NULL) {
8459 error = got_error_from_errno("view_open");
8460 goto done;
8461 }
8462
8463 error = open_ref_view(view, repo);
8464 if (error)
8465 goto done;
8466
8467 if (worktree) {
8468 /* Release work tree lock. */
8469 got_worktree_close(worktree);
8470 worktree = NULL;
8471 }
8472 error = view_loop(view);
8473 done:
8474 free(repo_path);
8475 free(cwd);
8476 if (repo) {
8477 const struct got_error *close_err = got_repo_close(repo);
8478 if (close_err)
8479 error = close_err;
8480 }
8481 if (pack_fds) {
8482 const struct got_error *pack_err =
8483 got_repo_pack_fds_close(pack_fds);
8484 if (error == NULL)
8485 error = pack_err;
8486 }
8487 tog_free_refs();
8488 return error;
8489 }
8490
8491 static const struct got_error*
8492 win_draw_center(WINDOW *win, size_t y, size_t x, size_t maxx, int focus,
8493 const char *str)
8494 {
8495 size_t len;
8496
8497 if (win == NULL)
8498 win = stdscr;
8499
8500 len = strlen(str);
8501 x = x ? x : maxx > len ? (maxx - len) / 2 : 0;
8502
8503 if (focus)
8504 wstandout(win);
8505 if (mvwprintw(win, y, x, "%s", str) == ERR)
8506 return got_error_msg(GOT_ERR_RANGE, "mvwprintw");
8507 if (focus)
8508 wstandend(win);
8509
8510 return NULL;
8511 }
8512
8513 static const struct got_error *
8514 add_line_offset(off_t **line_offsets, size_t *nlines, off_t off)
8515 {
8516 off_t *p;
8517
8518 p = reallocarray(*line_offsets, *nlines + 1, sizeof(off_t));
8519 if (p == NULL) {
8520 free(*line_offsets);
8521 *line_offsets = NULL;
8522 return got_error_from_errno("reallocarray");
8523 }
8524
8525 *line_offsets = p;
8526 (*line_offsets)[*nlines] = off;
8527 ++(*nlines);
8528 return NULL;
8529 }
8530
8531 static const struct got_error *
8532 max_key_str(int *ret, const struct tog_key_map *km, size_t n)
8533 {
8534 *ret = 0;
8535
8536 for (;n > 0; --n, ++km) {
8537 char *t0, *t, *k;
8538 size_t len = 1;
8539
8540 if (km->keys == NULL)
8541 continue;
8542
8543 t = t0 = strdup(km->keys);
8544 if (t0 == NULL)
8545 return got_error_from_errno("strdup");
8546
8547 len += strlen(t);
8548 while ((k = strsep(&t, " ")) != NULL)
8549 len += strlen(k) > 1 ? 2 : 0;
8550 free(t0);
8551 *ret = MAX(*ret, len);
8552 }
8553
8554 return NULL;
8555 }
8556
8557 /*
8558 * Write keymap section headers, keys, and key info in km to f.
8559 * Save line offset to *off. If terminal has UTF8 encoding enabled,
8560 * wrap control and symbolic keys in guillemets, else use <>.
8561 */
8562 static const struct got_error *
8563 format_help_line(off_t *off, FILE *f, const struct tog_key_map *km, int width)
8564 {
8565 int n, len = width;
8566
8567 if (km->keys) {
8568 static const char *u8_glyph[] = {
8569 "\xe2\x80\xb9", /* U+2039 (utf8 <) */
8570 "\xe2\x80\xba" /* U+203A (utf8 >) */
8571 };
8572 char *t0, *t, *k;
8573 int cs, s, first = 1;
8574
8575 cs = got_locale_is_utf8();
8576
8577 t = t0 = strdup(km->keys);
8578 if (t0 == NULL)
8579 return got_error_from_errno("strdup");
8580
8581 len = strlen(km->keys);
8582 while ((k = strsep(&t, " ")) != NULL) {
8583 s = strlen(k) > 1; /* control or symbolic key */
8584 n = fprintf(f, "%s%s%s%s%s", first ? " " : "",
8585 cs && s ? u8_glyph[0] : s ? "<" : "", k,
8586 cs && s ? u8_glyph[1] : s ? ">" : "", t ? " " : "");
8587 if (n < 0) {
8588 free(t0);
8589 return got_error_from_errno("fprintf");
8590 }
8591 first = 0;
8592 len += s ? 2 : 0;
8593 *off += n;
8594 }
8595 free(t0);
8596 }
8597 n = fprintf(f, "%*s%s\n", width - len, width - len ? " " : "", km->info);
8598 if (n < 0)
8599 return got_error_from_errno("fprintf");
8600 *off += n;
8601
8602 return NULL;
8603 }
8604
8605 static const struct got_error *
8606 format_help(struct tog_help_view_state *s)
8607 {
8608 const struct got_error *err = NULL;
8609 off_t off = 0;
8610 int i, max, n, show = s->all;
8611 static const struct tog_key_map km[] = {
8612 #define KEYMAP_(info, type) { NULL, (info), type }
8613 #define KEY_(keys, info) { (keys), (info), TOG_KEYMAP_KEYS }
8614 GENERATE_HELP
8615 #undef KEYMAP_
8616 #undef KEY_
8617 };
8618
8619 err = add_line_offset(&s->line_offsets, &s->nlines, 0);
8620 if (err)
8621 return err;
8622
8623 n = nitems(km);
8624 err = max_key_str(&max, km, n);
8625 if (err)
8626 return err;
8627
8628 for (i = 0; i < n; ++i) {
8629 if (km[i].keys == NULL) {
8630 show = s->all;
8631 if (km[i].type == TOG_KEYMAP_GLOBAL ||
8632 km[i].type == s->type || s->all)
8633 show = 1;
8634 }
8635 if (show) {
8636 err = format_help_line(&off, s->f, &km[i], max);
8637 if (err)
8638 return err;
8639 err = add_line_offset(&s->line_offsets, &s->nlines, off);
8640 if (err)
8641 return err;
8642 }
8643 }
8644 fputc('\n', s->f);
8645 ++off;
8646 err = add_line_offset(&s->line_offsets, &s->nlines, off);
8647 return err;
8648 }
8649
8650 static const struct got_error *
8651 create_help(struct tog_help_view_state *s)
8652 {
8653 FILE *f;
8654 const struct got_error *err;
8655
8656 free(s->line_offsets);
8657 s->line_offsets = NULL;
8658 s->nlines = 0;
8659
8660 f = got_opentemp();
8661 if (f == NULL)
8662 return got_error_from_errno("got_opentemp");
8663 s->f = f;
8664
8665 err = format_help(s);
8666 if (err)
8667 return err;
8668
8669 if (s->f && fflush(s->f) != 0)
8670 return got_error_from_errno("fflush");
8671
8672 return NULL;
8673 }
8674
8675 static const struct got_error *
8676 search_start_help_view(struct tog_view *view)
8677 {
8678 view->state.help.matched_line = 0;
8679 return NULL;
8680 }
8681
8682 static void
8683 search_setup_help_view(struct tog_view *view, FILE **f, off_t **line_offsets,
8684 size_t *nlines, int **first, int **last, int **match, int **selected)
8685 {
8686 struct tog_help_view_state *s = &view->state.help;
8687
8688 *f = s->f;
8689 *nlines = s->nlines;
8690 *line_offsets = s->line_offsets;
8691 *match = &s->matched_line;
8692 *first = &s->first_displayed_line;
8693 *last = &s->last_displayed_line;
8694 *selected = &s->selected_line;
8695 }
8696
8697 static const struct got_error *
8698 show_help_view(struct tog_view *view)
8699 {
8700 struct tog_help_view_state *s = &view->state.help;
8701 const struct got_error *err;
8702 regmatch_t *regmatch = &view->regmatch;
8703 wchar_t *wline;
8704 char *line;
8705 ssize_t linelen;
8706 size_t linesz = 0;
8707 int width, nprinted = 0, rc = 0;
8708 int eos = view->nlines;
8709
8710 if (view_is_hsplit_top(view))
8711 --eos; /* account for border */
8712
8713 s->lineno = 0;
8714 rewind(s->f);
8715 werase(view->window);
8716
8717 if (view->gline > s->nlines - 1)
8718 view->gline = s->nlines - 1;
8719
8720 err = win_draw_center(view->window, 0, 0, view->ncols,
8721 view_needs_focus_indication(view),
8722 "tog help (press q to return to tog)");
8723 if (err)
8724 return err;
8725 if (eos <= 1)
8726 return NULL;
8727 waddstr(view->window, "\n\n");
8728 eos -= 2;
8729
8730 s->eof = 0;
8731 view->maxx = 0;
8732 line = NULL;
8733 while (eos > 0 && nprinted < eos) {
8734 attr_t attr = 0;
8735
8736 linelen = getline(&line, &linesz, s->f);
8737 if (linelen == -1) {
8738 if (!feof(s->f)) {
8739 free(line);
8740 return got_ferror(s->f, GOT_ERR_IO);
8741 }
8742 s->eof = 1;
8743 break;
8744 }
8745 if (++s->lineno < s->first_displayed_line)
8746 continue;
8747 if (view->gline && !gotoline(view, &s->lineno, &nprinted))
8748 continue;
8749 if (s->lineno == view->hiline)
8750 attr = A_STANDOUT;
8751
8752 err = format_line(&wline, &width, NULL, line, 0, INT_MAX, 0,
8753 view->x ? 1 : 0);
8754 if (err) {
8755 free(line);
8756 return err;
8757 }
8758 view->maxx = MAX(view->maxx, width);
8759 free(wline);
8760 wline = NULL;
8761
8762 if (attr)
8763 wattron(view->window, attr);
8764 if (s->first_displayed_line + nprinted == s->matched_line &&
8765 regmatch->rm_so >= 0 && regmatch->rm_so < regmatch->rm_eo) {
8766 err = add_matched_line(&width, line, view->ncols - 1, 0,
8767 view->window, view->x, regmatch);
8768 if (err) {
8769 free(line);
8770 return err;
8771 }
8772 } else {
8773 int skip;
8774
8775 err = format_line(&wline, &width, &skip, line,
8776 view->x, view->ncols - 1, 0, view->x ? 1 : 0);
8777 if (err) {
8778 free(line);
8779 return err;
8780 }
8781 rc = waddwstr(view->window, &wline[skip]);
8782 free(wline);
8783 wline = NULL;
8784 if (rc == ERR)
8785 return got_error_msg(GOT_ERR_IO, "waddwstr");
8786 }
8787 if (s->lineno == view->hiline) {
8788 while (width++ < view->ncols)
8789 waddch(view->window, ' ');
8790 } else {
8791 if (width <= view->ncols)
8792 waddch(view->window, '\n');
8793 }
8794 if (attr)
8795 wattroff(view->window, attr);
8796 if (++nprinted == 1)
8797 s->first_displayed_line = s->lineno;
8798 }
8799 free(line);
8800 if (nprinted > 0)
8801 s->last_displayed_line = s->first_displayed_line + nprinted - 1;
8802 else
8803 s->last_displayed_line = s->first_displayed_line;
8804
8805 view_border(view);
8806
8807 if (s->eof) {
8808 rc = waddnstr(view->window,
8809 "See the tog(1) manual page for full documentation",
8810 view->ncols - 1);
8811 if (rc == ERR)
8812 return got_error_msg(GOT_ERR_RANGE, "waddnstr");
8813 } else {
8814 wmove(view->window, view->nlines - 1, 0);
8815 wclrtoeol(view->window);
8816 wstandout(view->window);
8817 rc = waddnstr(view->window, "scroll down for more...",
8818 view->ncols - 1);
8819 if (rc == ERR)
8820 return got_error_msg(GOT_ERR_RANGE, "waddnstr");
8821 if (getcurx(view->window) < view->ncols - 6) {
8822 rc = wprintw(view->window, "[%.0f%%]",
8823 100.00 * s->last_displayed_line / s->nlines);
8824 if (rc == ERR)
8825 return got_error_msg(GOT_ERR_IO, "wprintw");
8826 }
8827 wstandend(view->window);
8828 }
8829
8830 return NULL;
8831 }
8832
8833 static const struct got_error *
8834 input_help_view(struct tog_view **new_view, struct tog_view *view, int ch)
8835 {
8836 struct tog_help_view_state *s = &view->state.help;
8837 const struct got_error *err = NULL;
8838 char *line = NULL;
8839 ssize_t linelen;
8840 size_t linesz = 0;
8841 int eos, nscroll;
8842
8843 eos = nscroll = view->nlines;
8844 if (view_is_hsplit_top(view))
8845 --eos; /* border */
8846
8847 s->lineno = s->first_displayed_line - 1 + s->selected_line;
8848
8849 switch (ch) {
8850 case '0':
8851 view->x = 0;
8852 break;
8853 case '$':
8854 view->x = MAX(view->maxx - view->ncols / 3, 0);
8855 view->count = 0;
8856 break;
8857 case KEY_RIGHT:
8858 case 'l':
8859 if (view->x + view->ncols / 3 < view->maxx)
8860 view->x += 2;
8861 else
8862 view->count = 0;
8863 break;
8864 case KEY_LEFT:
8865 case 'h':
8866 view->x -= MIN(view->x, 2);
8867 if (view->x <= 0)
8868 view->count = 0;
8869 break;
8870 case 'g':
8871 case KEY_HOME:
8872 s->first_displayed_line = 1;
8873 view->count = 0;
8874 break;
8875 case 'G':
8876 case KEY_END:
8877 view->count = 0;
8878 if (s->eof)
8879 break;
8880 s->first_displayed_line = (s->nlines - eos) + 3;
8881 s->eof = 1;
8882 break;
8883 case 'k':
8884 case KEY_UP:
8885 if (s->first_displayed_line > 1)
8886 --s->first_displayed_line;
8887 else
8888 view->count = 0;
8889 break;
8890 case CTRL('u'):
8891 case 'u':
8892 nscroll /= 2;
8893 /* FALL THROUGH */
8894 case KEY_PPAGE:
8895 case CTRL('b'):
8896 case 'b':
8897 if (s->first_displayed_line == 1) {
8898 view->count = 0;
8899 break;
8900 }
8901 while (--nscroll > 0 && s->first_displayed_line > 1)
8902 s->first_displayed_line--;
8903 break;
8904 case 'j':
8905 case KEY_DOWN:
8906 case CTRL('n'):
8907 if (!s->eof)
8908 ++s->first_displayed_line;
8909 else
8910 view->count = 0;
8911 break;
8912 case CTRL('d'):
8913 case 'd':
8914 nscroll /= 2;
8915 /* FALL THROUGH */
8916 case KEY_NPAGE:
8917 case CTRL('f'):
8918 case 'f':
8919 case ' ':
8920 if (s->eof) {
8921 view->count = 0;
8922 break;
8923 }
8924 while (!s->eof && --nscroll > 0) {
8925 linelen = getline(&line, &linesz, s->f);
8926 s->first_displayed_line++;
8927 if (linelen == -1) {
8928 if (feof(s->f))
8929 s->eof = 1;
8930 else
8931 err = got_ferror(s->f, GOT_ERR_IO);
8932 break;
8933 }
8934 }
8935 free(line);
8936 break;
8937 default:
8938 view->count = 0;
8939 break;
8940 }
8941
8942 return err;
8943 }
8944
8945 static const struct got_error *
8946 close_help_view(struct tog_view *view)
8947 {
8948 struct tog_help_view_state *s = &view->state.help;
8949
8950 free(s->line_offsets);
8951 s->line_offsets = NULL;
8952 if (fclose(s->f) == EOF)
8953 return got_error_from_errno("fclose");
8954
8955 return NULL;
8956 }
8957
8958 static const struct got_error *
8959 reset_help_view(struct tog_view *view)
8960 {
8961 struct tog_help_view_state *s = &view->state.help;
8962
8963
8964 if (s->f && fclose(s->f) == EOF)
8965 return got_error_from_errno("fclose");
8966
8967 wclear(view->window);
8968 view->count = 0;
8969 view->x = 0;
8970 s->all = !s->all;
8971 s->first_displayed_line = 1;
8972 s->last_displayed_line = view->nlines;
8973 s->matched_line = 0;
8974
8975 return create_help(s);
8976 }
8977
8978 static const struct got_error *
8979 open_help_view(struct tog_view *view, struct tog_view *parent)
8980 {
8981 const struct got_error *err = NULL;
8982 struct tog_help_view_state *s = &view->state.help;
8983
8984 s->type = (enum tog_keymap_type)parent->type;
8985 s->first_displayed_line = 1;
8986 s->last_displayed_line = view->nlines;
8987 s->selected_line = 1;
8988
8989 view->show = show_help_view;
8990 view->input = input_help_view;
8991 view->reset = reset_help_view;
8992 view->close = close_help_view;
8993 view->search_start = search_start_help_view;
8994 view->search_setup = search_setup_help_view;
8995 view->search_next = search_next_view_match;
8996
8997 err = create_help(s);
8998 return err;
8999 }
9000
9001 static const struct got_error *
9002 view_dispatch_request(struct tog_view **new_view, struct tog_view *view,
9003 enum tog_view_type request, int y, int x)
9004 {
9005 const struct got_error *err = NULL;
9006
9007 *new_view = NULL;
9008
9009 switch (request) {
9010 case TOG_VIEW_DIFF:
9011 if (view->type == TOG_VIEW_LOG) {
9012 struct tog_log_view_state *s = &view->state.log;
9013
9014 err = open_diff_view_for_commit(new_view, y, x,
9015 s->selected_entry->commit, s->selected_entry->id,
9016 view, s->repo);
9017 } else
9018 return got_error_msg(GOT_ERR_NOT_IMPL,
9019 "parent/child view pair not supported");
9020 break;
9021 case TOG_VIEW_BLAME:
9022 if (view->type == TOG_VIEW_TREE) {
9023 struct tog_tree_view_state *s = &view->state.tree;
9024
9025 err = blame_tree_entry(new_view, y, x,
9026 s->selected_entry, &s->parents, s->commit_id,
9027 s->repo);
9028 } else
9029 return got_error_msg(GOT_ERR_NOT_IMPL,
9030 "parent/child view pair not supported");
9031 break;
9032 case TOG_VIEW_LOG:
9033 if (view->type == TOG_VIEW_BLAME)
9034 err = log_annotated_line(new_view, y, x,
9035 view->state.blame.repo, view->state.blame.id_to_log);
9036 else if (view->type == TOG_VIEW_TREE)
9037 err = log_selected_tree_entry(new_view, y, x,
9038 &view->state.tree);
9039 else if (view->type == TOG_VIEW_REF)
9040 err = log_ref_entry(new_view, y, x,
9041 view->state.ref.selected_entry,
9042 view->state.ref.repo);
9043 else
9044 return got_error_msg(GOT_ERR_NOT_IMPL,
9045 "parent/child view pair not supported");
9046 break;
9047 case TOG_VIEW_TREE:
9048 if (view->type == TOG_VIEW_LOG)
9049 err = browse_commit_tree(new_view, y, x,
9050 view->state.log.selected_entry,
9051 view->state.log.in_repo_path,
9052 view->state.log.head_ref_name,
9053 view->state.log.repo);
9054 else if (view->type == TOG_VIEW_REF)
9055 err = browse_ref_tree(new_view, y, x,
9056 view->state.ref.selected_entry,
9057 view->state.ref.repo);
9058 else
9059 return got_error_msg(GOT_ERR_NOT_IMPL,
9060 "parent/child view pair not supported");
9061 break;
9062 case TOG_VIEW_REF:
9063 *new_view = view_open(0, 0, y, x, TOG_VIEW_REF);
9064 if (*new_view == NULL)
9065 return got_error_from_errno("view_open");
9066 if (view->type == TOG_VIEW_LOG)
9067 err = open_ref_view(*new_view, view->state.log.repo);
9068 else if (view->type == TOG_VIEW_TREE)
9069 err = open_ref_view(*new_view, view->state.tree.repo);
9070 else
9071 err = got_error_msg(GOT_ERR_NOT_IMPL,
9072 "parent/child view pair not supported");
9073 if (err)
9074 view_close(*new_view);
9075 break;
9076 case TOG_VIEW_HELP:
9077 *new_view = view_open(0, 0, 0, 0, TOG_VIEW_HELP);
9078 if (*new_view == NULL)
9079 return got_error_from_errno("view_open");
9080 err = open_help_view(*new_view, view);
9081 if (err)
9082 view_close(*new_view);
9083 break;
9084 default:
9085 return got_error_msg(GOT_ERR_NOT_IMPL, "invalid view");
9086 }
9087
9088 return err;
9089 }
9090
9091 /*
9092 * If view was scrolled down to move the selected line into view when opening a
9093 * horizontal split, scroll back up when closing the split/toggling fullscreen.
9094 */
9095 static void
9096 offset_selection_up(struct tog_view *view)
9097 {
9098 switch (view->type) {
9099 case TOG_VIEW_BLAME: {
9100 struct tog_blame_view_state *s = &view->state.blame;
9101 if (s->first_displayed_line == 1) {
9102 s->selected_line = MAX(s->selected_line - view->offset,
9103 1);
9104 break;
9105 }
9106 if (s->first_displayed_line > view->offset)
9107 s->first_displayed_line -= view->offset;
9108 else
9109 s->first_displayed_line = 1;
9110 s->selected_line += view->offset;
9111 break;
9112 }
9113 case TOG_VIEW_LOG:
9114 log_scroll_up(&view->state.log, view->offset);
9115 view->state.log.selected += view->offset;
9116 break;
9117 case TOG_VIEW_REF:
9118 ref_scroll_up(&view->state.ref, view->offset);
9119 view->state.ref.selected += view->offset;
9120 break;
9121 case TOG_VIEW_TREE:
9122 tree_scroll_up(&view->state.tree, view->offset);
9123 view->state.tree.selected += view->offset;
9124 break;
9125 default:
9126 break;
9127 }
9128
9129 view->offset = 0;
9130 }
9131
9132 /*
9133 * If the selected line is in the section of screen covered by the bottom split,
9134 * scroll down offset lines to move it into view and index its new position.
9135 */
9136 static const struct got_error *
9137 offset_selection_down(struct tog_view *view)
9138 {
9139 const struct got_error *err = NULL;
9140 const struct got_error *(*scrolld)(struct tog_view *, int);
9141 int *selected = NULL;
9142 int header, offset;
9143
9144 switch (view->type) {
9145 case TOG_VIEW_BLAME: {
9146 struct tog_blame_view_state *s = &view->state.blame;
9147 header = 3;
9148 scrolld = NULL;
9149 if (s->selected_line > view->nlines - header) {
9150 offset = abs(view->nlines - s->selected_line - header);
9151 s->first_displayed_line += offset;
9152 s->selected_line -= offset;
9153 view->offset = offset;
9154 }
9155 break;
9156 }
9157 case TOG_VIEW_LOG: {
9158 struct tog_log_view_state *s = &view->state.log;
9159 scrolld = &log_scroll_down;
9160 header = view_is_parent_view(view) ? 3 : 2;
9161 selected = &s->selected;
9162 break;
9163 }
9164 case TOG_VIEW_REF: {
9165 struct tog_ref_view_state *s = &view->state.ref;
9166 scrolld = &ref_scroll_down;
9167 header = 3;
9168 selected = &s->selected;
9169 break;
9170 }
9171 case TOG_VIEW_TREE: {
9172 struct tog_tree_view_state *s = &view->state.tree;
9173 scrolld = &tree_scroll_down;
9174 header = 5;
9175 selected = &s->selected;
9176 break;
9177 }
9178 default:
9179 selected = NULL;
9180 scrolld = NULL;
9181 header = 0;
9182 break;
9183 }
9184
9185 if (selected && *selected > view->nlines - header) {
9186 offset = abs(view->nlines - *selected - header);
9187 view->offset = offset;
9188 if (scrolld && offset) {
9189 err = scrolld(view, offset);
9190 *selected -= offset;
9191 }
9192 }
9193
9194 return err;
9195 }
9196
9197 static void
9198 list_commands(FILE *fp)
9199 {
9200 size_t i;
9201
9202 fprintf(fp, "commands:");
9203 for (i = 0; i < nitems(tog_commands); i++) {
9204 const struct tog_cmd *cmd = &tog_commands[i];
9205 fprintf(fp, " %s", cmd->name);
9206 }
9207 fputc('\n', fp);
9208 }
9209
9210 __dead static void
9211 usage(int hflag, int status)
9212 {
9213 FILE *fp = (status == 0) ? stdout : stderr;
9214
9215 fprintf(fp, "usage: %s [-hV] command [arg ...]\n",
9216 getprogname());
9217 if (hflag) {
9218 fprintf(fp, "lazy usage: %s path\n", getprogname());
9219 list_commands(fp);
9220 }
9221 exit(status);
9222 }
9223
9224 static char **
9225 make_argv(int argc, ...)
9226 {
9227 va_list ap;
9228 char **argv;
9229 int i;
9230
9231 va_start(ap, argc);
9232
9233 argv = calloc(argc, sizeof(char *));
9234 if (argv == NULL)
9235 err(1, "calloc");
9236 for (i = 0; i < argc; i++) {
9237 argv[i] = strdup(va_arg(ap, char *));
9238 if (argv[i] == NULL)
9239 err(1, "strdup");
9240 }
9241
9242 va_end(ap);
9243 return argv;
9244 }
9245
9246 /*
9247 * Try to convert 'tog path' into a 'tog log path' command.
9248 * The user could simply have mistyped the command rather than knowingly
9249 * provided a path. So check whether argv[0] can in fact be resolved
9250 * to a path in the HEAD commit and print a special error if not.
9251 * This hack is for mpi@ <3
9252 */
9253 static const struct got_error *
9254 tog_log_with_path(int argc, char *argv[])
9255 {
9256 const struct got_error *error = NULL, *close_err;
9257 const struct tog_cmd *cmd = NULL;
9258 struct got_repository *repo = NULL;
9259 struct got_worktree *worktree = NULL;
9260 struct got_object_id *commit_id = NULL, *id = NULL;
9261 struct got_commit_object *commit = NULL;
9262 char *cwd = NULL, *repo_path = NULL, *in_repo_path = NULL;
9263 char *commit_id_str = NULL, **cmd_argv = NULL;
9264 int *pack_fds = NULL;
9265
9266 cwd = getcwd(NULL, 0);
9267 if (cwd == NULL)
9268 return got_error_from_errno("getcwd");
9269
9270 error = got_repo_pack_fds_open(&pack_fds);
9271 if (error != NULL)
9272 goto done;
9273
9274 error = got_worktree_open(&worktree, cwd);
9275 if (error && error->code != GOT_ERR_NOT_WORKTREE)
9276 goto done;
9277
9278 if (worktree)
9279 repo_path = strdup(got_worktree_get_repo_path(worktree));
9280 else
9281 repo_path = strdup(cwd);
9282 if (repo_path == NULL) {
9283 error = got_error_from_errno("strdup");
9284 goto done;
9285 }
9286
9287 error = got_repo_open(&repo, repo_path, NULL, pack_fds);
9288 if (error != NULL)
9289 goto done;
9290
9291 error = get_in_repo_path_from_argv0(&in_repo_path, argc, argv,
9292 repo, worktree);
9293 if (error)
9294 goto done;
9295
9296 error = tog_load_refs(repo, 0);
9297 if (error)
9298 goto done;
9299 error = got_repo_match_object_id(&commit_id, NULL, worktree ?
9300 got_worktree_get_head_ref_name(worktree) : GOT_REF_HEAD,
9301 GOT_OBJ_TYPE_COMMIT, &tog_refs, repo);
9302 if (error)
9303 goto done;
9304
9305 if (worktree) {
9306 got_worktree_close(worktree);
9307 worktree = NULL;
9308 }
9309
9310 error = got_object_open_as_commit(&commit, repo, commit_id);
9311 if (error)
9312 goto done;
9313
9314 error = got_object_id_by_path(&id, repo, commit, in_repo_path);
9315 if (error) {
9316 if (error->code != GOT_ERR_NO_TREE_ENTRY)
9317 goto done;
9318 fprintf(stderr, "%s: '%s' is no known command or path\n",
9319 getprogname(), argv[0]);
9320 usage(1, 1);
9321 /* not reached */
9322 }
9323
9324 error = got_object_id_str(&commit_id_str, commit_id);
9325 if (error)
9326 goto done;
9327
9328 cmd = &tog_commands[0]; /* log */
9329 argc = 4;
9330 cmd_argv = make_argv(argc, cmd->name, "-c", commit_id_str, argv[0]);
9331 error = cmd->cmd_main(argc, cmd_argv);
9332 done:
9333 if (repo) {
9334 close_err = got_repo_close(repo);
9335 if (error == NULL)
9336 error = close_err;
9337 }
9338 if (commit)
9339 got_object_commit_close(commit);
9340 if (worktree)
9341 got_worktree_close(worktree);
9342 if (pack_fds) {
9343 const struct got_error *pack_err =
9344 got_repo_pack_fds_close(pack_fds);
9345 if (error == NULL)
9346 error = pack_err;
9347 }
9348 free(id);
9349 free(commit_id_str);
9350 free(commit_id);
9351 free(cwd);
9352 free(repo_path);
9353 free(in_repo_path);
9354 if (cmd_argv) {
9355 int i;
9356 for (i = 0; i < argc; i++)
9357 free(cmd_argv[i]);
9358 free(cmd_argv);
9359 }
9360 tog_free_refs();
9361 return error;
9362 }
9363
9364 int
9365 main(int argc, char *argv[])
9366 {
9367 const struct got_error *error = NULL;
9368 const struct tog_cmd *cmd = NULL;
9369 int ch, hflag = 0, Vflag = 0;
9370 char **cmd_argv = NULL;
9371 static const struct option longopts[] = {
9372 { "version", no_argument, NULL, 'V' },
9373 { NULL, 0, NULL, 0}
9374 };
9375 char *diff_algo_str = NULL;
9376
9377 if (!isatty(STDIN_FILENO))
9378 errx(1, "standard input is not a tty");
9379
9380 setlocale(LC_CTYPE, "");
9381
9382 while ((ch = getopt_long(argc, argv, "+hV", longopts, NULL)) != -1) {
9383 switch (ch) {
9384 case 'h':
9385 hflag = 1;
9386 break;
9387 case 'V':
9388 Vflag = 1;
9389 break;
9390 default:
9391 usage(hflag, 1);
9392 /* NOTREACHED */
9393 }
9394 }
9395
9396 argc -= optind;
9397 argv += optind;
9398 optind = 1;
9399 optreset = 1;
9400
9401 if (Vflag) {
9402 got_version_print_str();
9403 return 0;
9404 }
9405
9406 #ifndef PROFILE
9407 if (pledge("stdio rpath wpath cpath flock proc tty exec sendfd unveil",
9408 NULL) == -1)
9409 err(1, "pledge");
9410 #endif
9411
9412 if (argc == 0) {
9413 if (hflag)
9414 usage(hflag, 0);
9415 /* Build an argument vector which runs a default command. */
9416 cmd = &tog_commands[0];
9417 argc = 1;
9418 cmd_argv = make_argv(argc, cmd->name);
9419 } else {
9420 size_t i;
9421
9422 /* Did the user specify a command? */
9423 for (i = 0; i < nitems(tog_commands); i++) {
9424 if (strncmp(tog_commands[i].name, argv[0],
9425 strlen(argv[0])) == 0) {
9426 cmd = &tog_commands[i];
9427 break;
9428 }
9429 }
9430 }
9431
9432 diff_algo_str = getenv("TOG_DIFF_ALGORITHM");
9433 if (diff_algo_str) {
9434 if (strcasecmp(diff_algo_str, "patience") == 0)
9435 tog_diff_algo = GOT_DIFF_ALGORITHM_PATIENCE;
9436 if (strcasecmp(diff_algo_str, "myers") == 0)
9437 tog_diff_algo = GOT_DIFF_ALGORITHM_MYERS;
9438 }
9439
9440 if (cmd == NULL) {
9441 if (argc != 1)
9442 usage(0, 1);
9443 /* No command specified; try log with a path */
9444 error = tog_log_with_path(argc, argv);
9445 } else {
9446 if (hflag)
9447 cmd->cmd_usage();
9448 else
9449 error = cmd->cmd_main(argc, cmd_argv ? cmd_argv : argv);
9450 }
9451
9452 endwin();
9453 putchar('\n');
9454 if (cmd_argv) {
9455 int i;
9456 for (i = 0; i < argc; i++)
9457 free(cmd_argv[i]);
9458 free(cmd_argv);
9459 }
9460
9461 if (error && error->code != GOT_ERR_CANCELLED &&
9462 error->code != GOT_ERR_EOF &&
9463 error->code != GOT_ERR_PRIVSEP_EXIT &&
9464 error->code != GOT_ERR_PRIVSEP_PIPE &&
9465 !(error->code == GOT_ERR_ERRNO && errno == EINTR))
9466 fprintf(stderr, "%s: %s\n", getprogname(), error->msg);
9467 return 0;
9468 }
portable version of Game of Trees