Merge branch 'cn/maint-lf-to-crlf-filter'
[git] / wt-status.c
1 #include "cache.h"
2 #include "wt-status.h"
3 #include "object.h"
4 #include "dir.h"
5 #include "commit.h"
6 #include "diff.h"
7 #include "revision.h"
8 #include "diffcore.h"
9 #include "quote.h"
10 #include "run-command.h"
11 #include "remote.h"
12 #include "refs.h"
13 #include "submodule.h"
14
15 static char default_wt_status_colors[][COLOR_MAXLEN] = {
16         GIT_COLOR_NORMAL, /* WT_STATUS_HEADER */
17         GIT_COLOR_GREEN,  /* WT_STATUS_UPDATED */
18         GIT_COLOR_RED,    /* WT_STATUS_CHANGED */
19         GIT_COLOR_RED,    /* WT_STATUS_UNTRACKED */
20         GIT_COLOR_RED,    /* WT_STATUS_NOBRANCH */
21         GIT_COLOR_RED,    /* WT_STATUS_UNMERGED */
22         GIT_COLOR_GREEN,  /* WT_STATUS_LOCAL_BRANCH */
23         GIT_COLOR_RED,    /* WT_STATUS_REMOTE_BRANCH */
24         GIT_COLOR_NIL,    /* WT_STATUS_ONBRANCH */
25 };
26
27 static const char *color(int slot, struct wt_status *s)
28 {
29         const char *c = "";
30         if (want_color(s->use_color))
31                 c = s->color_palette[slot];
32         if (slot == WT_STATUS_ONBRANCH && color_is_nil(c))
33                 c = s->color_palette[WT_STATUS_HEADER];
34         return c;
35 }
36
37 static void status_vprintf(struct wt_status *s, int at_bol, const char *color,
38                 const char *fmt, va_list ap, const char *trail)
39 {
40         struct strbuf sb = STRBUF_INIT;
41         struct strbuf linebuf = STRBUF_INIT;
42         const char *line, *eol;
43
44         strbuf_vaddf(&sb, fmt, ap);
45         if (!sb.len) {
46                 strbuf_addch(&sb, '#');
47                 if (!trail)
48                         strbuf_addch(&sb, ' ');
49                 color_print_strbuf(s->fp, color, &sb);
50                 if (trail)
51                         fprintf(s->fp, "%s", trail);
52                 strbuf_release(&sb);
53                 return;
54         }
55         for (line = sb.buf; *line; line = eol + 1) {
56                 eol = strchr(line, '\n');
57
58                 strbuf_reset(&linebuf);
59                 if (at_bol) {
60                         strbuf_addch(&linebuf, '#');
61                         if (*line != '\n' && *line != '\t')
62                                 strbuf_addch(&linebuf, ' ');
63                 }
64                 if (eol)
65                         strbuf_add(&linebuf, line, eol - line);
66                 else
67                         strbuf_addstr(&linebuf, line);
68                 color_print_strbuf(s->fp, color, &linebuf);
69                 if (eol)
70                         fprintf(s->fp, "\n");
71                 else
72                         break;
73                 at_bol = 1;
74         }
75         if (trail)
76                 fprintf(s->fp, "%s", trail);
77         strbuf_release(&linebuf);
78         strbuf_release(&sb);
79 }
80
81 void status_printf_ln(struct wt_status *s, const char *color,
82                         const char *fmt, ...)
83 {
84         va_list ap;
85
86         va_start(ap, fmt);
87         status_vprintf(s, 1, color, fmt, ap, "\n");
88         va_end(ap);
89 }
90
91 void status_printf(struct wt_status *s, const char *color,
92                         const char *fmt, ...)
93 {
94         va_list ap;
95
96         va_start(ap, fmt);
97         status_vprintf(s, 1, color, fmt, ap, NULL);
98         va_end(ap);
99 }
100
101 void status_printf_more(struct wt_status *s, const char *color,
102                         const char *fmt, ...)
103 {
104         va_list ap;
105
106         va_start(ap, fmt);
107         status_vprintf(s, 0, color, fmt, ap, NULL);
108         va_end(ap);
109 }
110
111 void wt_status_prepare(struct wt_status *s)
112 {
113         unsigned char sha1[20];
114         const char *head;
115
116         memset(s, 0, sizeof(*s));
117         memcpy(s->color_palette, default_wt_status_colors,
118                sizeof(default_wt_status_colors));
119         s->show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
120         s->use_color = -1;
121         s->relative_paths = 1;
122         head = resolve_ref("HEAD", sha1, 0, NULL);
123         s->branch = head ? xstrdup(head) : NULL;
124         s->reference = "HEAD";
125         s->fp = stdout;
126         s->index_file = get_index_file();
127         s->change.strdup_strings = 1;
128         s->untracked.strdup_strings = 1;
129         s->ignored.strdup_strings = 1;
130 }
131
132 static void wt_status_print_unmerged_header(struct wt_status *s)
133 {
134         const char *c = color(WT_STATUS_HEADER, s);
135
136         status_printf_ln(s, c, _("Unmerged paths:"));
137         if (!advice_status_hints)
138                 return;
139         if (s->whence != FROM_COMMIT)
140                 ;
141         else if (!s->is_initial)
142                 status_printf_ln(s, c, _("  (use \"git reset %s <file>...\" to unstage)"), s->reference);
143         else
144                 status_printf_ln(s, c, _("  (use \"git rm --cached <file>...\" to unstage)"));
145         status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" as appropriate to mark resolution)"));
146         status_printf_ln(s, c, "");
147 }
148
149 static void wt_status_print_cached_header(struct wt_status *s)
150 {
151         const char *c = color(WT_STATUS_HEADER, s);
152
153         status_printf_ln(s, c, _("Changes to be committed:"));
154         if (!advice_status_hints)
155                 return;
156         if (s->whence != FROM_COMMIT)
157                 ; /* NEEDSWORK: use "git reset --unresolve"??? */
158         else if (!s->is_initial)
159                 status_printf_ln(s, c, _("  (use \"git reset %s <file>...\" to unstage)"), s->reference);
160         else
161                 status_printf_ln(s, c, _("  (use \"git rm --cached <file>...\" to unstage)"));
162         status_printf_ln(s, c, "");
163 }
164
165 static void wt_status_print_dirty_header(struct wt_status *s,
166                                          int has_deleted,
167                                          int has_dirty_submodules)
168 {
169         const char *c = color(WT_STATUS_HEADER, s);
170
171         status_printf_ln(s, c, _("Changes not staged for commit:"));
172         if (!advice_status_hints)
173                 return;
174         if (!has_deleted)
175                 status_printf_ln(s, c, _("  (use \"git add <file>...\" to update what will be committed)"));
176         else
177                 status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" to update what will be committed)"));
178         status_printf_ln(s, c, _("  (use \"git checkout -- <file>...\" to discard changes in working directory)"));
179         if (has_dirty_submodules)
180                 status_printf_ln(s, c, _("  (commit or discard the untracked or modified content in submodules)"));
181         status_printf_ln(s, c, "");
182 }
183
184 static void wt_status_print_other_header(struct wt_status *s,
185                                          const char *what,
186                                          const char *how)
187 {
188         const char *c = color(WT_STATUS_HEADER, s);
189         status_printf_ln(s, c, _("%s files:"), what);
190         if (!advice_status_hints)
191                 return;
192         status_printf_ln(s, c, _("  (use \"git %s <file>...\" to include in what will be committed)"), how);
193         status_printf_ln(s, c, "");
194 }
195
196 static void wt_status_print_trailer(struct wt_status *s)
197 {
198         status_printf_ln(s, color(WT_STATUS_HEADER, s), "");
199 }
200
201 #define quote_path quote_path_relative
202
203 static void wt_status_print_unmerged_data(struct wt_status *s,
204                                           struct string_list_item *it)
205 {
206         const char *c = color(WT_STATUS_UNMERGED, s);
207         struct wt_status_change_data *d = it->util;
208         struct strbuf onebuf = STRBUF_INIT;
209         const char *one, *how = _("bug");
210
211         one = quote_path(it->string, -1, &onebuf, s->prefix);
212         status_printf(s, color(WT_STATUS_HEADER, s), "\t");
213         switch (d->stagemask) {
214         case 1: how = _("both deleted:"); break;
215         case 2: how = _("added by us:"); break;
216         case 3: how = _("deleted by them:"); break;
217         case 4: how = _("added by them:"); break;
218         case 5: how = _("deleted by us:"); break;
219         case 6: how = _("both added:"); break;
220         case 7: how = _("both modified:"); break;
221         }
222         status_printf_more(s, c, "%-20s%s\n", how, one);
223         strbuf_release(&onebuf);
224 }
225
226 static void wt_status_print_change_data(struct wt_status *s,
227                                         int change_type,
228                                         struct string_list_item *it)
229 {
230         struct wt_status_change_data *d = it->util;
231         const char *c = color(change_type, s);
232         int status = status;
233         char *one_name;
234         char *two_name;
235         const char *one, *two;
236         struct strbuf onebuf = STRBUF_INIT, twobuf = STRBUF_INIT;
237         struct strbuf extra = STRBUF_INIT;
238
239         one_name = two_name = it->string;
240         switch (change_type) {
241         case WT_STATUS_UPDATED:
242                 status = d->index_status;
243                 if (d->head_path)
244                         one_name = d->head_path;
245                 break;
246         case WT_STATUS_CHANGED:
247                 if (d->new_submodule_commits || d->dirty_submodule) {
248                         strbuf_addstr(&extra, " (");
249                         if (d->new_submodule_commits)
250                                 strbuf_addf(&extra, _("new commits, "));
251                         if (d->dirty_submodule & DIRTY_SUBMODULE_MODIFIED)
252                                 strbuf_addf(&extra, _("modified content, "));
253                         if (d->dirty_submodule & DIRTY_SUBMODULE_UNTRACKED)
254                                 strbuf_addf(&extra, _("untracked content, "));
255                         strbuf_setlen(&extra, extra.len - 2);
256                         strbuf_addch(&extra, ')');
257                 }
258                 status = d->worktree_status;
259                 break;
260         }
261
262         one = quote_path(one_name, -1, &onebuf, s->prefix);
263         two = quote_path(two_name, -1, &twobuf, s->prefix);
264
265         status_printf(s, color(WT_STATUS_HEADER, s), "\t");
266         switch (status) {
267         case DIFF_STATUS_ADDED:
268                 status_printf_more(s, c, _("new file:   %s"), one);
269                 break;
270         case DIFF_STATUS_COPIED:
271                 status_printf_more(s, c, _("copied:     %s -> %s"), one, two);
272                 break;
273         case DIFF_STATUS_DELETED:
274                 status_printf_more(s, c, _("deleted:    %s"), one);
275                 break;
276         case DIFF_STATUS_MODIFIED:
277                 status_printf_more(s, c, _("modified:   %s"), one);
278                 break;
279         case DIFF_STATUS_RENAMED:
280                 status_printf_more(s, c, _("renamed:    %s -> %s"), one, two);
281                 break;
282         case DIFF_STATUS_TYPE_CHANGED:
283                 status_printf_more(s, c, _("typechange: %s"), one);
284                 break;
285         case DIFF_STATUS_UNKNOWN:
286                 status_printf_more(s, c, _("unknown:    %s"), one);
287                 break;
288         case DIFF_STATUS_UNMERGED:
289                 status_printf_more(s, c, _("unmerged:   %s"), one);
290                 break;
291         default:
292                 die(_("bug: unhandled diff status %c"), status);
293         }
294         if (extra.len) {
295                 status_printf_more(s, color(WT_STATUS_HEADER, s), "%s", extra.buf);
296                 strbuf_release(&extra);
297         }
298         status_printf_more(s, GIT_COLOR_NORMAL, "\n");
299         strbuf_release(&onebuf);
300         strbuf_release(&twobuf);
301 }
302
303 static void wt_status_collect_changed_cb(struct diff_queue_struct *q,
304                                          struct diff_options *options,
305                                          void *data)
306 {
307         struct wt_status *s = data;
308         int i;
309
310         if (!q->nr)
311                 return;
312         s->workdir_dirty = 1;
313         for (i = 0; i < q->nr; i++) {
314                 struct diff_filepair *p;
315                 struct string_list_item *it;
316                 struct wt_status_change_data *d;
317
318                 p = q->queue[i];
319                 it = string_list_insert(&s->change, p->one->path);
320                 d = it->util;
321                 if (!d) {
322                         d = xcalloc(1, sizeof(*d));
323                         it->util = d;
324                 }
325                 if (!d->worktree_status)
326                         d->worktree_status = p->status;
327                 d->dirty_submodule = p->two->dirty_submodule;
328                 if (S_ISGITLINK(p->two->mode))
329                         d->new_submodule_commits = !!hashcmp(p->one->sha1, p->two->sha1);
330         }
331 }
332
333 static int unmerged_mask(const char *path)
334 {
335         int pos, mask;
336         struct cache_entry *ce;
337
338         pos = cache_name_pos(path, strlen(path));
339         if (0 <= pos)
340                 return 0;
341
342         mask = 0;
343         pos = -pos-1;
344         while (pos < active_nr) {
345                 ce = active_cache[pos++];
346                 if (strcmp(ce->name, path) || !ce_stage(ce))
347                         break;
348                 mask |= (1 << (ce_stage(ce) - 1));
349         }
350         return mask;
351 }
352
353 static void wt_status_collect_updated_cb(struct diff_queue_struct *q,
354                                          struct diff_options *options,
355                                          void *data)
356 {
357         struct wt_status *s = data;
358         int i;
359
360         for (i = 0; i < q->nr; i++) {
361                 struct diff_filepair *p;
362                 struct string_list_item *it;
363                 struct wt_status_change_data *d;
364
365                 p = q->queue[i];
366                 it = string_list_insert(&s->change, p->two->path);
367                 d = it->util;
368                 if (!d) {
369                         d = xcalloc(1, sizeof(*d));
370                         it->util = d;
371                 }
372                 if (!d->index_status)
373                         d->index_status = p->status;
374                 switch (p->status) {
375                 case DIFF_STATUS_COPIED:
376                 case DIFF_STATUS_RENAMED:
377                         d->head_path = xstrdup(p->one->path);
378                         break;
379                 case DIFF_STATUS_UNMERGED:
380                         d->stagemask = unmerged_mask(p->two->path);
381                         break;
382                 }
383         }
384 }
385
386 static void wt_status_collect_changes_worktree(struct wt_status *s)
387 {
388         struct rev_info rev;
389
390         init_revisions(&rev, NULL);
391         setup_revisions(0, NULL, &rev, NULL);
392         rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
393         DIFF_OPT_SET(&rev.diffopt, DIRTY_SUBMODULES);
394         if (!s->show_untracked_files)
395                 DIFF_OPT_SET(&rev.diffopt, IGNORE_UNTRACKED_IN_SUBMODULES);
396         if (s->ignore_submodule_arg) {
397                 DIFF_OPT_SET(&rev.diffopt, OVERRIDE_SUBMODULE_CONFIG);
398                 handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
399         }
400         rev.diffopt.format_callback = wt_status_collect_changed_cb;
401         rev.diffopt.format_callback_data = s;
402         init_pathspec(&rev.prune_data, s->pathspec);
403         run_diff_files(&rev, 0);
404 }
405
406 static void wt_status_collect_changes_index(struct wt_status *s)
407 {
408         struct rev_info rev;
409         struct setup_revision_opt opt;
410
411         init_revisions(&rev, NULL);
412         memset(&opt, 0, sizeof(opt));
413         opt.def = s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference;
414         setup_revisions(0, NULL, &rev, &opt);
415
416         if (s->ignore_submodule_arg) {
417                 DIFF_OPT_SET(&rev.diffopt, OVERRIDE_SUBMODULE_CONFIG);
418                 handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
419         }
420
421         rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
422         rev.diffopt.format_callback = wt_status_collect_updated_cb;
423         rev.diffopt.format_callback_data = s;
424         rev.diffopt.detect_rename = 1;
425         rev.diffopt.rename_limit = 200;
426         rev.diffopt.break_opt = 0;
427         init_pathspec(&rev.prune_data, s->pathspec);
428         run_diff_index(&rev, 1);
429 }
430
431 static void wt_status_collect_changes_initial(struct wt_status *s)
432 {
433         struct pathspec pathspec;
434         int i;
435
436         init_pathspec(&pathspec, s->pathspec);
437         for (i = 0; i < active_nr; i++) {
438                 struct string_list_item *it;
439                 struct wt_status_change_data *d;
440                 struct cache_entry *ce = active_cache[i];
441
442                 if (!ce_path_match(ce, &pathspec))
443                         continue;
444                 it = string_list_insert(&s->change, ce->name);
445                 d = it->util;
446                 if (!d) {
447                         d = xcalloc(1, sizeof(*d));
448                         it->util = d;
449                 }
450                 if (ce_stage(ce)) {
451                         d->index_status = DIFF_STATUS_UNMERGED;
452                         d->stagemask |= (1 << (ce_stage(ce) - 1));
453                 }
454                 else
455                         d->index_status = DIFF_STATUS_ADDED;
456         }
457         free_pathspec(&pathspec);
458 }
459
460 static void wt_status_collect_untracked(struct wt_status *s)
461 {
462         int i;
463         struct dir_struct dir;
464
465         if (!s->show_untracked_files)
466                 return;
467         memset(&dir, 0, sizeof(dir));
468         if (s->show_untracked_files != SHOW_ALL_UNTRACKED_FILES)
469                 dir.flags |=
470                         DIR_SHOW_OTHER_DIRECTORIES | DIR_HIDE_EMPTY_DIRECTORIES;
471         setup_standard_excludes(&dir);
472
473         fill_directory(&dir, s->pathspec);
474         for (i = 0; i < dir.nr; i++) {
475                 struct dir_entry *ent = dir.entries[i];
476                 if (cache_name_is_other(ent->name, ent->len) &&
477                     match_pathspec(s->pathspec, ent->name, ent->len, 0, NULL))
478                         string_list_insert(&s->untracked, ent->name);
479                 free(ent);
480         }
481
482         if (s->show_ignored_files) {
483                 dir.nr = 0;
484                 dir.flags = DIR_SHOW_IGNORED | DIR_SHOW_OTHER_DIRECTORIES;
485                 fill_directory(&dir, s->pathspec);
486                 for (i = 0; i < dir.nr; i++) {
487                         struct dir_entry *ent = dir.entries[i];
488                         if (cache_name_is_other(ent->name, ent->len) &&
489                             match_pathspec(s->pathspec, ent->name, ent->len, 0, NULL))
490                                 string_list_insert(&s->ignored, ent->name);
491                         free(ent);
492                 }
493         }
494
495         free(dir.entries);
496 }
497
498 void wt_status_collect(struct wt_status *s)
499 {
500         wt_status_collect_changes_worktree(s);
501
502         if (s->is_initial)
503                 wt_status_collect_changes_initial(s);
504         else
505                 wt_status_collect_changes_index(s);
506         wt_status_collect_untracked(s);
507 }
508
509 static void wt_status_print_unmerged(struct wt_status *s)
510 {
511         int shown_header = 0;
512         int i;
513
514         for (i = 0; i < s->change.nr; i++) {
515                 struct wt_status_change_data *d;
516                 struct string_list_item *it;
517                 it = &(s->change.items[i]);
518                 d = it->util;
519                 if (!d->stagemask)
520                         continue;
521                 if (!shown_header) {
522                         wt_status_print_unmerged_header(s);
523                         shown_header = 1;
524                 }
525                 wt_status_print_unmerged_data(s, it);
526         }
527         if (shown_header)
528                 wt_status_print_trailer(s);
529
530 }
531
532 static void wt_status_print_updated(struct wt_status *s)
533 {
534         int shown_header = 0;
535         int i;
536
537         for (i = 0; i < s->change.nr; i++) {
538                 struct wt_status_change_data *d;
539                 struct string_list_item *it;
540                 it = &(s->change.items[i]);
541                 d = it->util;
542                 if (!d->index_status ||
543                     d->index_status == DIFF_STATUS_UNMERGED)
544                         continue;
545                 if (!shown_header) {
546                         wt_status_print_cached_header(s);
547                         s->commitable = 1;
548                         shown_header = 1;
549                 }
550                 wt_status_print_change_data(s, WT_STATUS_UPDATED, it);
551         }
552         if (shown_header)
553                 wt_status_print_trailer(s);
554 }
555
556 /*
557  * -1 : has delete
558  *  0 : no change
559  *  1 : some change but no delete
560  */
561 static int wt_status_check_worktree_changes(struct wt_status *s,
562                                              int *dirty_submodules)
563 {
564         int i;
565         int changes = 0;
566
567         *dirty_submodules = 0;
568
569         for (i = 0; i < s->change.nr; i++) {
570                 struct wt_status_change_data *d;
571                 d = s->change.items[i].util;
572                 if (!d->worktree_status ||
573                     d->worktree_status == DIFF_STATUS_UNMERGED)
574                         continue;
575                 if (!changes)
576                         changes = 1;
577                 if (d->dirty_submodule)
578                         *dirty_submodules = 1;
579                 if (d->worktree_status == DIFF_STATUS_DELETED)
580                         changes = -1;
581         }
582         return changes;
583 }
584
585 static void wt_status_print_changed(struct wt_status *s)
586 {
587         int i, dirty_submodules;
588         int worktree_changes = wt_status_check_worktree_changes(s, &dirty_submodules);
589
590         if (!worktree_changes)
591                 return;
592
593         wt_status_print_dirty_header(s, worktree_changes < 0, dirty_submodules);
594
595         for (i = 0; i < s->change.nr; i++) {
596                 struct wt_status_change_data *d;
597                 struct string_list_item *it;
598                 it = &(s->change.items[i]);
599                 d = it->util;
600                 if (!d->worktree_status ||
601                     d->worktree_status == DIFF_STATUS_UNMERGED)
602                         continue;
603                 wt_status_print_change_data(s, WT_STATUS_CHANGED, it);
604         }
605         wt_status_print_trailer(s);
606 }
607
608 static void wt_status_print_submodule_summary(struct wt_status *s, int uncommitted)
609 {
610         struct child_process sm_summary;
611         char summary_limit[64];
612         char index[PATH_MAX];
613         const char *env[] = { NULL, NULL };
614         const char *argv[8];
615
616         env[0] =        index;
617         argv[0] =       "submodule";
618         argv[1] =       "summary";
619         argv[2] =       uncommitted ? "--files" : "--cached";
620         argv[3] =       "--for-status";
621         argv[4] =       "--summary-limit";
622         argv[5] =       summary_limit;
623         argv[6] =       uncommitted ? NULL : (s->amend ? "HEAD^" : "HEAD");
624         argv[7] =       NULL;
625
626         sprintf(summary_limit, "%d", s->submodule_summary);
627         snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", s->index_file);
628
629         memset(&sm_summary, 0, sizeof(sm_summary));
630         sm_summary.argv = argv;
631         sm_summary.env = env;
632         sm_summary.git_cmd = 1;
633         sm_summary.no_stdin = 1;
634         fflush(s->fp);
635         sm_summary.out = dup(fileno(s->fp));    /* run_command closes it */
636         run_command(&sm_summary);
637 }
638
639 static void wt_status_print_other(struct wt_status *s,
640                                   struct string_list *l,
641                                   const char *what,
642                                   const char *how)
643 {
644         int i;
645         struct strbuf buf = STRBUF_INIT;
646
647         if (!l->nr)
648                 return;
649
650         wt_status_print_other_header(s, what, how);
651
652         for (i = 0; i < l->nr; i++) {
653                 struct string_list_item *it;
654                 it = &(l->items[i]);
655                 status_printf(s, color(WT_STATUS_HEADER, s), "\t");
656                 status_printf_more(s, color(WT_STATUS_UNTRACKED, s),
657                         "%s\n", quote_path(it->string, strlen(it->string),
658                                             &buf, s->prefix));
659         }
660         strbuf_release(&buf);
661 }
662
663 static void wt_status_print_verbose(struct wt_status *s)
664 {
665         struct rev_info rev;
666         struct setup_revision_opt opt;
667
668         init_revisions(&rev, NULL);
669         DIFF_OPT_SET(&rev.diffopt, ALLOW_TEXTCONV);
670
671         memset(&opt, 0, sizeof(opt));
672         opt.def = s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference;
673         setup_revisions(0, NULL, &rev, &opt);
674
675         rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
676         rev.diffopt.detect_rename = 1;
677         rev.diffopt.file = s->fp;
678         rev.diffopt.close_file = 0;
679         /*
680          * If we're not going to stdout, then we definitely don't
681          * want color, since we are going to the commit message
682          * file (and even the "auto" setting won't work, since it
683          * will have checked isatty on stdout).
684          */
685         if (s->fp != stdout)
686                 rev.diffopt.use_color = 0;
687         run_diff_index(&rev, 1);
688 }
689
690 static void wt_status_print_tracking(struct wt_status *s)
691 {
692         struct strbuf sb = STRBUF_INIT;
693         const char *cp, *ep;
694         struct branch *branch;
695
696         assert(s->branch && !s->is_initial);
697         if (prefixcmp(s->branch, "refs/heads/"))
698                 return;
699         branch = branch_get(s->branch + 11);
700         if (!format_tracking_info(branch, &sb))
701                 return;
702
703         for (cp = sb.buf; (ep = strchr(cp, '\n')) != NULL; cp = ep + 1)
704                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s),
705                                  "# %.*s", (int)(ep - cp), cp);
706         color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "#");
707 }
708
709 void wt_status_print(struct wt_status *s)
710 {
711         const char *branch_color = color(WT_STATUS_ONBRANCH, s);
712         const char *branch_status_color = color(WT_STATUS_HEADER, s);
713
714         if (s->branch) {
715                 const char *on_what = _("On branch ");
716                 const char *branch_name = s->branch;
717                 if (!prefixcmp(branch_name, "refs/heads/"))
718                         branch_name += 11;
719                 else if (!strcmp(branch_name, "HEAD")) {
720                         branch_name = "";
721                         branch_status_color = color(WT_STATUS_NOBRANCH, s);
722                         on_what = _("Not currently on any branch.");
723                 }
724                 status_printf(s, color(WT_STATUS_HEADER, s), "");
725                 status_printf_more(s, branch_status_color, "%s", on_what);
726                 status_printf_more(s, branch_color, "%s\n", branch_name);
727                 if (!s->is_initial)
728                         wt_status_print_tracking(s);
729         }
730
731         if (s->is_initial) {
732                 status_printf_ln(s, color(WT_STATUS_HEADER, s), "");
733                 status_printf_ln(s, color(WT_STATUS_HEADER, s), _("Initial commit"));
734                 status_printf_ln(s, color(WT_STATUS_HEADER, s), "");
735         }
736
737         wt_status_print_updated(s);
738         wt_status_print_unmerged(s);
739         wt_status_print_changed(s);
740         if (s->submodule_summary &&
741             (!s->ignore_submodule_arg ||
742              strcmp(s->ignore_submodule_arg, "all"))) {
743                 wt_status_print_submodule_summary(s, 0);  /* staged */
744                 wt_status_print_submodule_summary(s, 1);  /* unstaged */
745         }
746         if (s->show_untracked_files) {
747                 wt_status_print_other(s, &s->untracked, _("Untracked"), "add");
748                 if (s->show_ignored_files)
749                         wt_status_print_other(s, &s->ignored, _("Ignored"), "add -f");
750         } else if (s->commitable)
751                 status_printf_ln(s, GIT_COLOR_NORMAL, _("Untracked files not listed%s"),
752                         advice_status_hints
753                         ? _(" (use -u option to show untracked files)") : "");
754
755         if (s->verbose)
756                 wt_status_print_verbose(s);
757         if (!s->commitable) {
758                 if (s->amend)
759                         status_printf_ln(s, GIT_COLOR_NORMAL, _("No changes"));
760                 else if (s->nowarn)
761                         ; /* nothing */
762                 else if (s->workdir_dirty)
763                         printf(_("no changes added to commit%s\n"),
764                                 advice_status_hints
765                                 ? _(" (use \"git add\" and/or \"git commit -a\")") : "");
766                 else if (s->untracked.nr)
767                         printf(_("nothing added to commit but untracked files present%s\n"),
768                                 advice_status_hints
769                                 ? _(" (use \"git add\" to track)") : "");
770                 else if (s->is_initial)
771                         printf(_("nothing to commit%s\n"), advice_status_hints
772                                 ? _(" (create/copy files and use \"git add\" to track)") : "");
773                 else if (!s->show_untracked_files)
774                         printf(_("nothing to commit%s\n"), advice_status_hints
775                                 ? _(" (use -u to show untracked files)") : "");
776                 else
777                         printf(_("nothing to commit%s\n"), advice_status_hints
778                                 ? _(" (working directory clean)") : "");
779         }
780 }
781
782 static void wt_shortstatus_unmerged(int null_termination, struct string_list_item *it,
783                            struct wt_status *s)
784 {
785         struct wt_status_change_data *d = it->util;
786         const char *how = "??";
787
788         switch (d->stagemask) {
789         case 1: how = "DD"; break; /* both deleted */
790         case 2: how = "AU"; break; /* added by us */
791         case 3: how = "UD"; break; /* deleted by them */
792         case 4: how = "UA"; break; /* added by them */
793         case 5: how = "DU"; break; /* deleted by us */
794         case 6: how = "AA"; break; /* both added */
795         case 7: how = "UU"; break; /* both modified */
796         }
797         color_fprintf(s->fp, color(WT_STATUS_UNMERGED, s), "%s", how);
798         if (null_termination) {
799                 fprintf(stdout, " %s%c", it->string, 0);
800         } else {
801                 struct strbuf onebuf = STRBUF_INIT;
802                 const char *one;
803                 one = quote_path(it->string, -1, &onebuf, s->prefix);
804                 printf(" %s\n", one);
805                 strbuf_release(&onebuf);
806         }
807 }
808
809 static void wt_shortstatus_status(int null_termination, struct string_list_item *it,
810                          struct wt_status *s)
811 {
812         struct wt_status_change_data *d = it->util;
813
814         if (d->index_status)
815                 color_fprintf(s->fp, color(WT_STATUS_UPDATED, s), "%c", d->index_status);
816         else
817                 putchar(' ');
818         if (d->worktree_status)
819                 color_fprintf(s->fp, color(WT_STATUS_CHANGED, s), "%c", d->worktree_status);
820         else
821                 putchar(' ');
822         putchar(' ');
823         if (null_termination) {
824                 fprintf(stdout, "%s%c", it->string, 0);
825                 if (d->head_path)
826                         fprintf(stdout, "%s%c", d->head_path, 0);
827         } else {
828                 struct strbuf onebuf = STRBUF_INIT;
829                 const char *one;
830                 if (d->head_path) {
831                         one = quote_path(d->head_path, -1, &onebuf, s->prefix);
832                         if (*one != '"' && strchr(one, ' ') != NULL) {
833                                 putchar('"');
834                                 strbuf_addch(&onebuf, '"');
835                                 one = onebuf.buf;
836                         }
837                         printf("%s -> ", one);
838                         strbuf_release(&onebuf);
839                 }
840                 one = quote_path(it->string, -1, &onebuf, s->prefix);
841                 if (*one != '"' && strchr(one, ' ') != NULL) {
842                         putchar('"');
843                         strbuf_addch(&onebuf, '"');
844                         one = onebuf.buf;
845                 }
846                 printf("%s\n", one);
847                 strbuf_release(&onebuf);
848         }
849 }
850
851 static void wt_shortstatus_other(int null_termination, struct string_list_item *it,
852                                  struct wt_status *s, const char *sign)
853 {
854         if (null_termination) {
855                 fprintf(stdout, "%s %s%c", sign, it->string, 0);
856         } else {
857                 struct strbuf onebuf = STRBUF_INIT;
858                 const char *one;
859                 one = quote_path(it->string, -1, &onebuf, s->prefix);
860                 color_fprintf(s->fp, color(WT_STATUS_UNTRACKED, s), "%s", sign);
861                 printf(" %s\n", one);
862                 strbuf_release(&onebuf);
863         }
864 }
865
866 static void wt_shortstatus_print_tracking(struct wt_status *s)
867 {
868         struct branch *branch;
869         const char *header_color = color(WT_STATUS_HEADER, s);
870         const char *branch_color_local = color(WT_STATUS_LOCAL_BRANCH, s);
871         const char *branch_color_remote = color(WT_STATUS_REMOTE_BRANCH, s);
872
873         const char *base;
874         const char *branch_name;
875         int num_ours, num_theirs;
876
877         color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "## ");
878
879         if (!s->branch)
880                 return;
881         branch_name = s->branch;
882
883         if (!prefixcmp(branch_name, "refs/heads/"))
884                 branch_name += 11;
885         else if (!strcmp(branch_name, "HEAD")) {
886                 branch_name = _("HEAD (no branch)");
887                 branch_color_local = color(WT_STATUS_NOBRANCH, s);
888         }
889
890         branch = branch_get(s->branch + 11);
891         if (s->is_initial)
892                 color_fprintf(s->fp, header_color, _("Initial commit on "));
893         if (!stat_tracking_info(branch, &num_ours, &num_theirs)) {
894                 color_fprintf_ln(s->fp, branch_color_local,
895                         "%s", branch_name);
896                 return;
897         }
898
899         base = branch->merge[0]->dst;
900         base = shorten_unambiguous_ref(base, 0);
901         color_fprintf(s->fp, branch_color_local, "%s", branch_name);
902         color_fprintf(s->fp, header_color, "...");
903         color_fprintf(s->fp, branch_color_remote, "%s", base);
904
905         color_fprintf(s->fp, header_color, " [");
906         if (!num_ours) {
907                 color_fprintf(s->fp, header_color, _("behind "));
908                 color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
909         } else if (!num_theirs) {
910                 color_fprintf(s->fp, header_color, _("ahead "));
911                 color_fprintf(s->fp, branch_color_local, "%d", num_ours);
912         } else {
913                 color_fprintf(s->fp, header_color, _("ahead "));
914                 color_fprintf(s->fp, branch_color_local, "%d", num_ours);
915                 color_fprintf(s->fp, header_color, _(", behind "));
916                 color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
917         }
918
919         color_fprintf_ln(s->fp, header_color, "]");
920 }
921
922 void wt_shortstatus_print(struct wt_status *s, int null_termination, int show_branch)
923 {
924         int i;
925
926         if (show_branch)
927                 wt_shortstatus_print_tracking(s);
928
929         for (i = 0; i < s->change.nr; i++) {
930                 struct wt_status_change_data *d;
931                 struct string_list_item *it;
932
933                 it = &(s->change.items[i]);
934                 d = it->util;
935                 if (d->stagemask)
936                         wt_shortstatus_unmerged(null_termination, it, s);
937                 else
938                         wt_shortstatus_status(null_termination, it, s);
939         }
940         for (i = 0; i < s->untracked.nr; i++) {
941                 struct string_list_item *it;
942
943                 it = &(s->untracked.items[i]);
944                 wt_shortstatus_other(null_termination, it, s, "??");
945         }
946         for (i = 0; i < s->ignored.nr; i++) {
947                 struct string_list_item *it;
948
949                 it = &(s->ignored.items[i]);
950                 wt_shortstatus_other(null_termination, it, s, "!!");
951         }
952 }
953
954 void wt_porcelain_print(struct wt_status *s, int null_termination)
955 {
956         s->use_color = 0;
957         s->relative_paths = 0;
958         s->prefix = NULL;
959         wt_shortstatus_print(s, null_termination, 0);
960 }