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