Merge branch 'rt/commentchar-fmt-merge-msg'
[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 #include "column.h"
15 #include "strbuf.h"
16
17 static char default_wt_status_colors[][COLOR_MAXLEN] = {
18         GIT_COLOR_NORMAL, /* WT_STATUS_HEADER */
19         GIT_COLOR_GREEN,  /* WT_STATUS_UPDATED */
20         GIT_COLOR_RED,    /* WT_STATUS_CHANGED */
21         GIT_COLOR_RED,    /* WT_STATUS_UNTRACKED */
22         GIT_COLOR_RED,    /* WT_STATUS_NOBRANCH */
23         GIT_COLOR_RED,    /* WT_STATUS_UNMERGED */
24         GIT_COLOR_GREEN,  /* WT_STATUS_LOCAL_BRANCH */
25         GIT_COLOR_RED,    /* WT_STATUS_REMOTE_BRANCH */
26         GIT_COLOR_NIL,    /* WT_STATUS_ONBRANCH */
27 };
28
29 static const char *color(int slot, struct wt_status *s)
30 {
31         const char *c = "";
32         if (want_color(s->use_color))
33                 c = s->color_palette[slot];
34         if (slot == WT_STATUS_ONBRANCH && color_is_nil(c))
35                 c = s->color_palette[WT_STATUS_HEADER];
36         return c;
37 }
38
39 static void status_vprintf(struct wt_status *s, int at_bol, const char *color,
40                 const char *fmt, va_list ap, const char *trail)
41 {
42         struct strbuf sb = STRBUF_INIT;
43         struct strbuf linebuf = STRBUF_INIT;
44         const char *line, *eol;
45
46         strbuf_vaddf(&sb, fmt, ap);
47         if (!sb.len) {
48                 strbuf_addch(&sb, comment_line_char);
49                 if (!trail)
50                         strbuf_addch(&sb, ' ');
51                 color_print_strbuf(s->fp, color, &sb);
52                 if (trail)
53                         fprintf(s->fp, "%s", trail);
54                 strbuf_release(&sb);
55                 return;
56         }
57         for (line = sb.buf; *line; line = eol + 1) {
58                 eol = strchr(line, '\n');
59
60                 strbuf_reset(&linebuf);
61                 if (at_bol) {
62                         strbuf_addch(&linebuf, comment_line_char);
63                         if (*line != '\n' && *line != '\t')
64                                 strbuf_addch(&linebuf, ' ');
65                 }
66                 if (eol)
67                         strbuf_add(&linebuf, line, eol - line);
68                 else
69                         strbuf_addstr(&linebuf, line);
70                 color_print_strbuf(s->fp, color, &linebuf);
71                 if (eol)
72                         fprintf(s->fp, "\n");
73                 else
74                         break;
75                 at_bol = 1;
76         }
77         if (trail)
78                 fprintf(s->fp, "%s", trail);
79         strbuf_release(&linebuf);
80         strbuf_release(&sb);
81 }
82
83 void status_printf_ln(struct wt_status *s, const char *color,
84                         const char *fmt, ...)
85 {
86         va_list ap;
87
88         va_start(ap, fmt);
89         status_vprintf(s, 1, color, fmt, ap, "\n");
90         va_end(ap);
91 }
92
93 void status_printf(struct wt_status *s, const char *color,
94                         const char *fmt, ...)
95 {
96         va_list ap;
97
98         va_start(ap, fmt);
99         status_vprintf(s, 1, color, fmt, ap, NULL);
100         va_end(ap);
101 }
102
103 static void status_printf_more(struct wt_status *s, const char *color,
104                                const char *fmt, ...)
105 {
106         va_list ap;
107
108         va_start(ap, fmt);
109         status_vprintf(s, 0, color, fmt, ap, NULL);
110         va_end(ap);
111 }
112
113 void wt_status_prepare(struct wt_status *s)
114 {
115         unsigned char sha1[20];
116
117         memset(s, 0, sizeof(*s));
118         memcpy(s->color_palette, default_wt_status_colors,
119                sizeof(default_wt_status_colors));
120         s->show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
121         s->use_color = -1;
122         s->relative_paths = 1;
123         s->branch = resolve_refdup("HEAD", sha1, 0, 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         int i;
135         int del_mod_conflict = 0;
136         int both_deleted = 0;
137         int not_deleted = 0;
138         const char *c = color(WT_STATUS_HEADER, s);
139
140         status_printf_ln(s, c, _("Unmerged paths:"));
141
142         for (i = 0; i < s->change.nr; i++) {
143                 struct string_list_item *it = &(s->change.items[i]);
144                 struct wt_status_change_data *d = it->util;
145
146                 switch (d->stagemask) {
147                 case 0:
148                         break;
149                 case 1:
150                         both_deleted = 1;
151                         break;
152                 case 3:
153                 case 5:
154                         del_mod_conflict = 1;
155                         break;
156                 default:
157                         not_deleted = 1;
158                         break;
159                 }
160         }
161
162         if (!advice_status_hints)
163                 return;
164         if (s->whence != FROM_COMMIT)
165                 ;
166         else if (!s->is_initial)
167                 status_printf_ln(s, c, _("  (use \"git reset %s <file>...\" to unstage)"), s->reference);
168         else
169                 status_printf_ln(s, c, _("  (use \"git rm --cached <file>...\" to unstage)"));
170
171         if (!both_deleted) {
172                 if (!del_mod_conflict)
173                         status_printf_ln(s, c, _("  (use \"git add <file>...\" to mark resolution)"));
174                 else
175                         status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" as appropriate to mark resolution)"));
176         } else if (!del_mod_conflict && !not_deleted) {
177                 status_printf_ln(s, c, _("  (use \"git rm <file>...\" to mark resolution)"));
178         } else {
179                 status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" as appropriate to mark resolution)"));
180         }
181         status_printf_ln(s, c, "");
182 }
183
184 static void wt_status_print_cached_header(struct wt_status *s)
185 {
186         const char *c = color(WT_STATUS_HEADER, s);
187
188         status_printf_ln(s, c, _("Changes to be committed:"));
189         if (!advice_status_hints)
190                 return;
191         if (s->whence != FROM_COMMIT)
192                 ; /* NEEDSWORK: use "git reset --unresolve"??? */
193         else if (!s->is_initial)
194                 status_printf_ln(s, c, _("  (use \"git reset %s <file>...\" to unstage)"), s->reference);
195         else
196                 status_printf_ln(s, c, _("  (use \"git rm --cached <file>...\" to unstage)"));
197         status_printf_ln(s, c, "");
198 }
199
200 static void wt_status_print_dirty_header(struct wt_status *s,
201                                          int has_deleted,
202                                          int has_dirty_submodules)
203 {
204         const char *c = color(WT_STATUS_HEADER, s);
205
206         status_printf_ln(s, c, _("Changes not staged for commit:"));
207         if (!advice_status_hints)
208                 return;
209         if (!has_deleted)
210                 status_printf_ln(s, c, _("  (use \"git add <file>...\" to update what will be committed)"));
211         else
212                 status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" to update what will be committed)"));
213         status_printf_ln(s, c, _("  (use \"git checkout -- <file>...\" to discard changes in working directory)"));
214         if (has_dirty_submodules)
215                 status_printf_ln(s, c, _("  (commit or discard the untracked or modified content in submodules)"));
216         status_printf_ln(s, c, "");
217 }
218
219 static void wt_status_print_other_header(struct wt_status *s,
220                                          const char *what,
221                                          const char *how)
222 {
223         const char *c = color(WT_STATUS_HEADER, s);
224         status_printf_ln(s, c, "%s:", what);
225         if (!advice_status_hints)
226                 return;
227         status_printf_ln(s, c, _("  (use \"git %s <file>...\" to include in what will be committed)"), how);
228         status_printf_ln(s, c, "");
229 }
230
231 static void wt_status_print_trailer(struct wt_status *s)
232 {
233         status_printf_ln(s, color(WT_STATUS_HEADER, s), "");
234 }
235
236 #define quote_path quote_path_relative
237
238 static void wt_status_print_unmerged_data(struct wt_status *s,
239                                           struct string_list_item *it)
240 {
241         const char *c = color(WT_STATUS_UNMERGED, s);
242         struct wt_status_change_data *d = it->util;
243         struct strbuf onebuf = STRBUF_INIT;
244         const char *one, *how = _("bug");
245
246         one = quote_path(it->string, -1, &onebuf, s->prefix);
247         status_printf(s, color(WT_STATUS_HEADER, s), "\t");
248         switch (d->stagemask) {
249         case 1: how = _("both deleted:"); break;
250         case 2: how = _("added by us:"); break;
251         case 3: how = _("deleted by them:"); break;
252         case 4: how = _("added by them:"); break;
253         case 5: how = _("deleted by us:"); break;
254         case 6: how = _("both added:"); break;
255         case 7: how = _("both modified:"); break;
256         }
257         status_printf_more(s, c, "%-20s%s\n", how, one);
258         strbuf_release(&onebuf);
259 }
260
261 static void wt_status_print_change_data(struct wt_status *s,
262                                         int change_type,
263                                         struct string_list_item *it)
264 {
265         struct wt_status_change_data *d = it->util;
266         const char *c = color(change_type, s);
267         int status;
268         char *one_name;
269         char *two_name;
270         const char *one, *two;
271         struct strbuf onebuf = STRBUF_INIT, twobuf = STRBUF_INIT;
272         struct strbuf extra = STRBUF_INIT;
273
274         one_name = two_name = it->string;
275         switch (change_type) {
276         case WT_STATUS_UPDATED:
277                 status = d->index_status;
278                 if (d->head_path)
279                         one_name = d->head_path;
280                 break;
281         case WT_STATUS_CHANGED:
282                 if (d->new_submodule_commits || d->dirty_submodule) {
283                         strbuf_addstr(&extra, " (");
284                         if (d->new_submodule_commits)
285                                 strbuf_addf(&extra, _("new commits, "));
286                         if (d->dirty_submodule & DIRTY_SUBMODULE_MODIFIED)
287                                 strbuf_addf(&extra, _("modified content, "));
288                         if (d->dirty_submodule & DIRTY_SUBMODULE_UNTRACKED)
289                                 strbuf_addf(&extra, _("untracked content, "));
290                         strbuf_setlen(&extra, extra.len - 2);
291                         strbuf_addch(&extra, ')');
292                 }
293                 status = d->worktree_status;
294                 break;
295         default:
296                 die("BUG: unhandled change_type %d in wt_status_print_change_data",
297                     change_type);
298         }
299
300         one = quote_path(one_name, -1, &onebuf, s->prefix);
301         two = quote_path(two_name, -1, &twobuf, s->prefix);
302
303         status_printf(s, color(WT_STATUS_HEADER, s), "\t");
304         switch (status) {
305         case DIFF_STATUS_ADDED:
306                 status_printf_more(s, c, _("new file:   %s"), one);
307                 break;
308         case DIFF_STATUS_COPIED:
309                 status_printf_more(s, c, _("copied:     %s -> %s"), one, two);
310                 break;
311         case DIFF_STATUS_DELETED:
312                 status_printf_more(s, c, _("deleted:    %s"), one);
313                 break;
314         case DIFF_STATUS_MODIFIED:
315                 status_printf_more(s, c, _("modified:   %s"), one);
316                 break;
317         case DIFF_STATUS_RENAMED:
318                 status_printf_more(s, c, _("renamed:    %s -> %s"), one, two);
319                 break;
320         case DIFF_STATUS_TYPE_CHANGED:
321                 status_printf_more(s, c, _("typechange: %s"), one);
322                 break;
323         case DIFF_STATUS_UNKNOWN:
324                 status_printf_more(s, c, _("unknown:    %s"), one);
325                 break;
326         case DIFF_STATUS_UNMERGED:
327                 status_printf_more(s, c, _("unmerged:   %s"), one);
328                 break;
329         default:
330                 die(_("bug: unhandled diff status %c"), status);
331         }
332         if (extra.len) {
333                 status_printf_more(s, color(WT_STATUS_HEADER, s), "%s", extra.buf);
334                 strbuf_release(&extra);
335         }
336         status_printf_more(s, GIT_COLOR_NORMAL, "\n");
337         strbuf_release(&onebuf);
338         strbuf_release(&twobuf);
339 }
340
341 static void wt_status_collect_changed_cb(struct diff_queue_struct *q,
342                                          struct diff_options *options,
343                                          void *data)
344 {
345         struct wt_status *s = data;
346         int i;
347
348         if (!q->nr)
349                 return;
350         s->workdir_dirty = 1;
351         for (i = 0; i < q->nr; i++) {
352                 struct diff_filepair *p;
353                 struct string_list_item *it;
354                 struct wt_status_change_data *d;
355
356                 p = q->queue[i];
357                 it = string_list_insert(&s->change, p->one->path);
358                 d = it->util;
359                 if (!d) {
360                         d = xcalloc(1, sizeof(*d));
361                         it->util = d;
362                 }
363                 if (!d->worktree_status)
364                         d->worktree_status = p->status;
365                 d->dirty_submodule = p->two->dirty_submodule;
366                 if (S_ISGITLINK(p->two->mode))
367                         d->new_submodule_commits = !!hashcmp(p->one->sha1, p->two->sha1);
368         }
369 }
370
371 static int unmerged_mask(const char *path)
372 {
373         int pos, mask;
374         struct cache_entry *ce;
375
376         pos = cache_name_pos(path, strlen(path));
377         if (0 <= pos)
378                 return 0;
379
380         mask = 0;
381         pos = -pos-1;
382         while (pos < active_nr) {
383                 ce = active_cache[pos++];
384                 if (strcmp(ce->name, path) || !ce_stage(ce))
385                         break;
386                 mask |= (1 << (ce_stage(ce) - 1));
387         }
388         return mask;
389 }
390
391 static void wt_status_collect_updated_cb(struct diff_queue_struct *q,
392                                          struct diff_options *options,
393                                          void *data)
394 {
395         struct wt_status *s = data;
396         int i;
397
398         for (i = 0; i < q->nr; i++) {
399                 struct diff_filepair *p;
400                 struct string_list_item *it;
401                 struct wt_status_change_data *d;
402
403                 p = q->queue[i];
404                 it = string_list_insert(&s->change, p->two->path);
405                 d = it->util;
406                 if (!d) {
407                         d = xcalloc(1, sizeof(*d));
408                         it->util = d;
409                 }
410                 if (!d->index_status)
411                         d->index_status = p->status;
412                 switch (p->status) {
413                 case DIFF_STATUS_COPIED:
414                 case DIFF_STATUS_RENAMED:
415                         d->head_path = xstrdup(p->one->path);
416                         break;
417                 case DIFF_STATUS_UNMERGED:
418                         d->stagemask = unmerged_mask(p->two->path);
419                         break;
420                 }
421         }
422 }
423
424 static void wt_status_collect_changes_worktree(struct wt_status *s)
425 {
426         struct rev_info rev;
427
428         init_revisions(&rev, NULL);
429         setup_revisions(0, NULL, &rev, NULL);
430         rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
431         DIFF_OPT_SET(&rev.diffopt, DIRTY_SUBMODULES);
432         if (!s->show_untracked_files)
433                 DIFF_OPT_SET(&rev.diffopt, IGNORE_UNTRACKED_IN_SUBMODULES);
434         if (s->ignore_submodule_arg) {
435                 DIFF_OPT_SET(&rev.diffopt, OVERRIDE_SUBMODULE_CONFIG);
436                 handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
437         }
438         rev.diffopt.format_callback = wt_status_collect_changed_cb;
439         rev.diffopt.format_callback_data = s;
440         init_pathspec(&rev.prune_data, s->pathspec);
441         run_diff_files(&rev, 0);
442 }
443
444 static void wt_status_collect_changes_index(struct wt_status *s)
445 {
446         struct rev_info rev;
447         struct setup_revision_opt opt;
448
449         init_revisions(&rev, NULL);
450         memset(&opt, 0, sizeof(opt));
451         opt.def = s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference;
452         setup_revisions(0, NULL, &rev, &opt);
453
454         if (s->ignore_submodule_arg) {
455                 DIFF_OPT_SET(&rev.diffopt, OVERRIDE_SUBMODULE_CONFIG);
456                 handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
457         }
458
459         rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
460         rev.diffopt.format_callback = wt_status_collect_updated_cb;
461         rev.diffopt.format_callback_data = s;
462         rev.diffopt.detect_rename = 1;
463         rev.diffopt.rename_limit = 200;
464         rev.diffopt.break_opt = 0;
465         init_pathspec(&rev.prune_data, s->pathspec);
466         run_diff_index(&rev, 1);
467 }
468
469 static void wt_status_collect_changes_initial(struct wt_status *s)
470 {
471         struct pathspec pathspec;
472         int i;
473
474         init_pathspec(&pathspec, s->pathspec);
475         for (i = 0; i < active_nr; i++) {
476                 struct string_list_item *it;
477                 struct wt_status_change_data *d;
478                 struct cache_entry *ce = active_cache[i];
479
480                 if (!ce_path_match(ce, &pathspec))
481                         continue;
482                 it = string_list_insert(&s->change, ce->name);
483                 d = it->util;
484                 if (!d) {
485                         d = xcalloc(1, sizeof(*d));
486                         it->util = d;
487                 }
488                 if (ce_stage(ce)) {
489                         d->index_status = DIFF_STATUS_UNMERGED;
490                         d->stagemask |= (1 << (ce_stage(ce) - 1));
491                 }
492                 else
493                         d->index_status = DIFF_STATUS_ADDED;
494         }
495         free_pathspec(&pathspec);
496 }
497
498 static void wt_status_collect_untracked(struct wt_status *s)
499 {
500         int i;
501         struct dir_struct dir;
502         struct timeval t_begin;
503
504         if (!s->show_untracked_files)
505                 return;
506
507         if (advice_status_u_option)
508                 gettimeofday(&t_begin, NULL);
509
510         memset(&dir, 0, sizeof(dir));
511         if (s->show_untracked_files != SHOW_ALL_UNTRACKED_FILES)
512                 dir.flags |=
513                         DIR_SHOW_OTHER_DIRECTORIES | DIR_HIDE_EMPTY_DIRECTORIES;
514         setup_standard_excludes(&dir);
515
516         fill_directory(&dir, s->pathspec);
517         for (i = 0; i < dir.nr; i++) {
518                 struct dir_entry *ent = dir.entries[i];
519                 if (cache_name_is_other(ent->name, ent->len) &&
520                     match_pathspec(s->pathspec, ent->name, ent->len, 0, NULL))
521                         string_list_insert(&s->untracked, ent->name);
522                 free(ent);
523         }
524
525         if (s->show_ignored_files) {
526                 dir.nr = 0;
527                 dir.flags = DIR_SHOW_IGNORED;
528                 if (s->show_untracked_files != SHOW_ALL_UNTRACKED_FILES)
529                         dir.flags |= DIR_SHOW_OTHER_DIRECTORIES;
530                 fill_directory(&dir, s->pathspec);
531                 for (i = 0; i < dir.nr; i++) {
532                         struct dir_entry *ent = dir.entries[i];
533                         if (cache_name_is_other(ent->name, ent->len) &&
534                             match_pathspec(s->pathspec, ent->name, ent->len, 0, NULL))
535                                 string_list_insert(&s->ignored, ent->name);
536                         free(ent);
537                 }
538         }
539
540         free(dir.entries);
541
542         if (advice_status_u_option) {
543                 struct timeval t_end;
544                 gettimeofday(&t_end, NULL);
545                 s->untracked_in_ms =
546                         (uint64_t)t_end.tv_sec * 1000 + t_end.tv_usec / 1000 -
547                         ((uint64_t)t_begin.tv_sec * 1000 + t_begin.tv_usec / 1000);
548         }
549 }
550
551 void wt_status_collect(struct wt_status *s)
552 {
553         wt_status_collect_changes_worktree(s);
554
555         if (s->is_initial)
556                 wt_status_collect_changes_initial(s);
557         else
558                 wt_status_collect_changes_index(s);
559         wt_status_collect_untracked(s);
560 }
561
562 static void wt_status_print_unmerged(struct wt_status *s)
563 {
564         int shown_header = 0;
565         int i;
566
567         for (i = 0; i < s->change.nr; i++) {
568                 struct wt_status_change_data *d;
569                 struct string_list_item *it;
570                 it = &(s->change.items[i]);
571                 d = it->util;
572                 if (!d->stagemask)
573                         continue;
574                 if (!shown_header) {
575                         wt_status_print_unmerged_header(s);
576                         shown_header = 1;
577                 }
578                 wt_status_print_unmerged_data(s, it);
579         }
580         if (shown_header)
581                 wt_status_print_trailer(s);
582
583 }
584
585 static void wt_status_print_updated(struct wt_status *s)
586 {
587         int shown_header = 0;
588         int i;
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->index_status ||
596                     d->index_status == DIFF_STATUS_UNMERGED)
597                         continue;
598                 if (!shown_header) {
599                         wt_status_print_cached_header(s);
600                         s->commitable = 1;
601                         shown_header = 1;
602                 }
603                 wt_status_print_change_data(s, WT_STATUS_UPDATED, it);
604         }
605         if (shown_header)
606                 wt_status_print_trailer(s);
607 }
608
609 /*
610  * -1 : has delete
611  *  0 : no change
612  *  1 : some change but no delete
613  */
614 static int wt_status_check_worktree_changes(struct wt_status *s,
615                                              int *dirty_submodules)
616 {
617         int i;
618         int changes = 0;
619
620         *dirty_submodules = 0;
621
622         for (i = 0; i < s->change.nr; i++) {
623                 struct wt_status_change_data *d;
624                 d = s->change.items[i].util;
625                 if (!d->worktree_status ||
626                     d->worktree_status == DIFF_STATUS_UNMERGED)
627                         continue;
628                 if (!changes)
629                         changes = 1;
630                 if (d->dirty_submodule)
631                         *dirty_submodules = 1;
632                 if (d->worktree_status == DIFF_STATUS_DELETED)
633                         changes = -1;
634         }
635         return changes;
636 }
637
638 static void wt_status_print_changed(struct wt_status *s)
639 {
640         int i, dirty_submodules;
641         int worktree_changes = wt_status_check_worktree_changes(s, &dirty_submodules);
642
643         if (!worktree_changes)
644                 return;
645
646         wt_status_print_dirty_header(s, worktree_changes < 0, dirty_submodules);
647
648         for (i = 0; i < s->change.nr; i++) {
649                 struct wt_status_change_data *d;
650                 struct string_list_item *it;
651                 it = &(s->change.items[i]);
652                 d = it->util;
653                 if (!d->worktree_status ||
654                     d->worktree_status == DIFF_STATUS_UNMERGED)
655                         continue;
656                 wt_status_print_change_data(s, WT_STATUS_CHANGED, it);
657         }
658         wt_status_print_trailer(s);
659 }
660
661 static void wt_status_print_submodule_summary(struct wt_status *s, int uncommitted)
662 {
663         struct child_process sm_summary;
664         char summary_limit[64];
665         char index[PATH_MAX];
666         const char *env[] = { NULL, NULL };
667         const char *argv[8];
668
669         env[0] =        index;
670         argv[0] =       "submodule";
671         argv[1] =       "summary";
672         argv[2] =       uncommitted ? "--files" : "--cached";
673         argv[3] =       "--for-status";
674         argv[4] =       "--summary-limit";
675         argv[5] =       summary_limit;
676         argv[6] =       uncommitted ? NULL : (s->amend ? "HEAD^" : "HEAD");
677         argv[7] =       NULL;
678
679         sprintf(summary_limit, "%d", s->submodule_summary);
680         snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", s->index_file);
681
682         memset(&sm_summary, 0, sizeof(sm_summary));
683         sm_summary.argv = argv;
684         sm_summary.env = env;
685         sm_summary.git_cmd = 1;
686         sm_summary.no_stdin = 1;
687         fflush(s->fp);
688         sm_summary.out = dup(fileno(s->fp));    /* run_command closes it */
689         run_command(&sm_summary);
690 }
691
692 static void wt_status_print_other(struct wt_status *s,
693                                   struct string_list *l,
694                                   const char *what,
695                                   const char *how)
696 {
697         int i;
698         struct strbuf buf = STRBUF_INIT;
699         static struct string_list output = STRING_LIST_INIT_DUP;
700         struct column_options copts;
701
702         if (!l->nr)
703                 return;
704
705         wt_status_print_other_header(s, what, how);
706
707         for (i = 0; i < l->nr; i++) {
708                 struct string_list_item *it;
709                 const char *path;
710                 it = &(l->items[i]);
711                 path = quote_path(it->string, strlen(it->string),
712                                   &buf, s->prefix);
713                 if (column_active(s->colopts)) {
714                         string_list_append(&output, path);
715                         continue;
716                 }
717                 status_printf(s, color(WT_STATUS_HEADER, s), "\t");
718                 status_printf_more(s, color(WT_STATUS_UNTRACKED, s),
719                                    "%s\n", path);
720         }
721
722         strbuf_release(&buf);
723         if (!column_active(s->colopts))
724                 return;
725
726         strbuf_addf(&buf, "%s#\t%s",
727                     color(WT_STATUS_HEADER, s),
728                     color(WT_STATUS_UNTRACKED, s));
729         memset(&copts, 0, sizeof(copts));
730         copts.padding = 1;
731         copts.indent = buf.buf;
732         if (want_color(s->use_color))
733                 copts.nl = GIT_COLOR_RESET "\n";
734         print_columns(&output, s->colopts, &copts);
735         string_list_clear(&output, 0);
736         strbuf_release(&buf);
737 }
738
739 static void wt_status_print_verbose(struct wt_status *s)
740 {
741         struct rev_info rev;
742         struct setup_revision_opt opt;
743
744         init_revisions(&rev, NULL);
745         DIFF_OPT_SET(&rev.diffopt, ALLOW_TEXTCONV);
746
747         memset(&opt, 0, sizeof(opt));
748         opt.def = s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference;
749         setup_revisions(0, NULL, &rev, &opt);
750
751         rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
752         rev.diffopt.detect_rename = 1;
753         rev.diffopt.file = s->fp;
754         rev.diffopt.close_file = 0;
755         /*
756          * If we're not going to stdout, then we definitely don't
757          * want color, since we are going to the commit message
758          * file (and even the "auto" setting won't work, since it
759          * will have checked isatty on stdout).
760          */
761         if (s->fp != stdout)
762                 rev.diffopt.use_color = 0;
763         run_diff_index(&rev, 1);
764 }
765
766 static void wt_status_print_tracking(struct wt_status *s)
767 {
768         struct strbuf sb = STRBUF_INIT;
769         const char *cp, *ep;
770         struct branch *branch;
771
772         assert(s->branch && !s->is_initial);
773         if (prefixcmp(s->branch, "refs/heads/"))
774                 return;
775         branch = branch_get(s->branch + 11);
776         if (!format_tracking_info(branch, &sb))
777                 return;
778
779         for (cp = sb.buf; (ep = strchr(cp, '\n')) != NULL; cp = ep + 1)
780                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s),
781                                  "%c %.*s", comment_line_char,
782                                  (int)(ep - cp), cp);
783         color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "%c",
784                          comment_line_char);
785 }
786
787 static int has_unmerged(struct wt_status *s)
788 {
789         int i;
790
791         for (i = 0; i < s->change.nr; i++) {
792                 struct wt_status_change_data *d;
793                 d = s->change.items[i].util;
794                 if (d->stagemask)
795                         return 1;
796         }
797         return 0;
798 }
799
800 static void show_merge_in_progress(struct wt_status *s,
801                                 struct wt_status_state *state,
802                                 const char *color)
803 {
804         if (has_unmerged(s)) {
805                 status_printf_ln(s, color, _("You have unmerged paths."));
806                 if (advice_status_hints)
807                         status_printf_ln(s, color,
808                                 _("  (fix conflicts and run \"git commit\")"));
809         } else {
810                 status_printf_ln(s, color,
811                         _("All conflicts fixed but you are still merging."));
812                 if (advice_status_hints)
813                         status_printf_ln(s, color,
814                                 _("  (use \"git commit\" to conclude merge)"));
815         }
816         wt_status_print_trailer(s);
817 }
818
819 static void show_am_in_progress(struct wt_status *s,
820                                 struct wt_status_state *state,
821                                 const char *color)
822 {
823         status_printf_ln(s, color,
824                 _("You are in the middle of an am session."));
825         if (state->am_empty_patch)
826                 status_printf_ln(s, color,
827                         _("The current patch is empty."));
828         if (advice_status_hints) {
829                 if (!state->am_empty_patch)
830                         status_printf_ln(s, color,
831                                 _("  (fix conflicts and then run \"git am --resolved\")"));
832                 status_printf_ln(s, color,
833                         _("  (use \"git am --skip\" to skip this patch)"));
834                 status_printf_ln(s, color,
835                         _("  (use \"git am --abort\" to restore the original branch)"));
836         }
837         wt_status_print_trailer(s);
838 }
839
840 static char *read_line_from_git_path(const char *filename)
841 {
842         struct strbuf buf = STRBUF_INIT;
843         FILE *fp = fopen(git_path("%s", filename), "r");
844         if (!fp) {
845                 strbuf_release(&buf);
846                 return NULL;
847         }
848         strbuf_getline(&buf, fp, '\n');
849         if (!fclose(fp)) {
850                 return strbuf_detach(&buf, NULL);
851         } else {
852                 strbuf_release(&buf);
853                 return NULL;
854         }
855 }
856
857 static int split_commit_in_progress(struct wt_status *s)
858 {
859         int split_in_progress = 0;
860         char *head = read_line_from_git_path("HEAD");
861         char *orig_head = read_line_from_git_path("ORIG_HEAD");
862         char *rebase_amend = read_line_from_git_path("rebase-merge/amend");
863         char *rebase_orig_head = read_line_from_git_path("rebase-merge/orig-head");
864
865         if (!head || !orig_head || !rebase_amend || !rebase_orig_head ||
866             !s->branch || strcmp(s->branch, "HEAD"))
867                 return split_in_progress;
868
869         if (!strcmp(rebase_amend, rebase_orig_head)) {
870                 if (strcmp(head, rebase_amend))
871                         split_in_progress = 1;
872         } else if (strcmp(orig_head, rebase_orig_head)) {
873                 split_in_progress = 1;
874         }
875
876         if (!s->amend && !s->nowarn && !s->workdir_dirty)
877                 split_in_progress = 0;
878
879         free(head);
880         free(orig_head);
881         free(rebase_amend);
882         free(rebase_orig_head);
883         return split_in_progress;
884 }
885
886 static void show_rebase_in_progress(struct wt_status *s,
887                                 struct wt_status_state *state,
888                                 const char *color)
889 {
890         struct stat st;
891
892         if (has_unmerged(s)) {
893                 if (state->branch)
894                         status_printf_ln(s, color,
895                                          _("You are currently rebasing branch '%s' on '%s'."),
896                                          state->branch,
897                                          state->onto);
898                 else
899                         status_printf_ln(s, color,
900                                          _("You are currently rebasing."));
901                 if (advice_status_hints) {
902                         status_printf_ln(s, color,
903                                 _("  (fix conflicts and then run \"git rebase --continue\")"));
904                         status_printf_ln(s, color,
905                                 _("  (use \"git rebase --skip\" to skip this patch)"));
906                         status_printf_ln(s, color,
907                                 _("  (use \"git rebase --abort\" to check out the original branch)"));
908                 }
909         } else if (state->rebase_in_progress || !stat(git_path("MERGE_MSG"), &st)) {
910                 if (state->branch)
911                         status_printf_ln(s, color,
912                                          _("You are currently rebasing branch '%s' on '%s'."),
913                                          state->branch,
914                                          state->onto);
915                 else
916                         status_printf_ln(s, color,
917                                          _("You are currently rebasing."));
918                 if (advice_status_hints)
919                         status_printf_ln(s, color,
920                                 _("  (all conflicts fixed: run \"git rebase --continue\")"));
921         } else if (split_commit_in_progress(s)) {
922                 if (state->branch)
923                         status_printf_ln(s, color,
924                                          _("You are currently splitting a commit while rebasing branch '%s' on '%s'."),
925                                          state->branch,
926                                          state->onto);
927                 else
928                         status_printf_ln(s, color,
929                                          _("You are currently splitting a commit during a rebase."));
930                 if (advice_status_hints)
931                         status_printf_ln(s, color,
932                                 _("  (Once your working directory is clean, run \"git rebase --continue\")"));
933         } else {
934                 if (state->branch)
935                         status_printf_ln(s, color,
936                                          _("You are currently editing a commit while rebasing branch '%s' on '%s'."),
937                                          state->branch,
938                                          state->onto);
939                 else
940                         status_printf_ln(s, color,
941                                          _("You are currently editing a commit during a rebase."));
942                 if (advice_status_hints && !s->amend) {
943                         status_printf_ln(s, color,
944                                 _("  (use \"git commit --amend\" to amend the current commit)"));
945                         status_printf_ln(s, color,
946                                 _("  (use \"git rebase --continue\" once you are satisfied with your changes)"));
947                 }
948         }
949         wt_status_print_trailer(s);
950 }
951
952 static void show_cherry_pick_in_progress(struct wt_status *s,
953                                         struct wt_status_state *state,
954                                         const char *color)
955 {
956         status_printf_ln(s, color, _("You are currently cherry-picking."));
957         if (advice_status_hints) {
958                 if (has_unmerged(s))
959                         status_printf_ln(s, color,
960                                 _("  (fix conflicts and run \"git commit\")"));
961                 else
962                         status_printf_ln(s, color,
963                                 _("  (all conflicts fixed: run \"git commit\")"));
964         }
965         wt_status_print_trailer(s);
966 }
967
968 static void show_revert_in_progress(struct wt_status *s,
969                                         struct wt_status_state *state,
970                                         const char *color)
971 {
972         status_printf_ln(s, color, _("You are currently reverting commit %s."),
973                          find_unique_abbrev(state->revert_head_sha1, DEFAULT_ABBREV));
974         if (advice_status_hints) {
975                 if (has_unmerged(s))
976                         status_printf_ln(s, color,
977                                 _("  (fix conflicts and run \"git revert --continue\")"));
978                 else
979                         status_printf_ln(s, color,
980                                 _("  (all conflicts fixed: run \"git revert --continue\")"));
981                 status_printf_ln(s, color,
982                         _("  (use \"git revert --abort\" to cancel the revert operation)"));
983         }
984         wt_status_print_trailer(s);
985 }
986
987 static void show_bisect_in_progress(struct wt_status *s,
988                                 struct wt_status_state *state,
989                                 const char *color)
990 {
991         if (state->branch)
992                 status_printf_ln(s, color,
993                                  _("You are currently bisecting, started from branch '%s'."),
994                                  state->branch);
995         else
996                 status_printf_ln(s, color,
997                                  _("You are currently bisecting."));
998         if (advice_status_hints)
999                 status_printf_ln(s, color,
1000                         _("  (use \"git bisect reset\" to get back to the original branch)"));
1001         wt_status_print_trailer(s);
1002 }
1003
1004 /*
1005  * Extract branch information from rebase/bisect
1006  */
1007 static char *read_and_strip_branch(const char *path)
1008 {
1009         struct strbuf sb = STRBUF_INIT;
1010         unsigned char sha1[20];
1011
1012         if (strbuf_read_file(&sb, git_path("%s", path), 0) <= 0)
1013                 goto got_nothing;
1014
1015         while (&sb.len && sb.buf[sb.len - 1] == '\n')
1016                 strbuf_setlen(&sb, sb.len - 1);
1017         if (!sb.len)
1018                 goto got_nothing;
1019         if (!prefixcmp(sb.buf, "refs/heads/"))
1020                 strbuf_remove(&sb,0, strlen("refs/heads/"));
1021         else if (!prefixcmp(sb.buf, "refs/"))
1022                 ;
1023         else if (!get_sha1_hex(sb.buf, sha1)) {
1024                 const char *abbrev;
1025                 abbrev = find_unique_abbrev(sha1, DEFAULT_ABBREV);
1026                 strbuf_reset(&sb);
1027                 strbuf_addstr(&sb, abbrev);
1028         } else if (!strcmp(sb.buf, "detached HEAD")) /* rebase */
1029                 goto got_nothing;
1030         else                    /* bisect */
1031                 ;
1032         return strbuf_detach(&sb, NULL);
1033
1034 got_nothing:
1035         strbuf_release(&sb);
1036         return NULL;
1037 }
1038
1039 struct grab_1st_switch_cbdata {
1040         int found;
1041         struct strbuf buf;
1042         unsigned char nsha1[20];
1043 };
1044
1045 static int grab_1st_switch(unsigned char *osha1, unsigned char *nsha1,
1046                            const char *email, unsigned long timestamp, int tz,
1047                            const char *message, void *cb_data)
1048 {
1049         struct grab_1st_switch_cbdata *cb = cb_data;
1050         const char *target = NULL, *end;
1051
1052         if (prefixcmp(message, "checkout: moving from "))
1053                 return 0;
1054         message += strlen("checkout: moving from ");
1055         target = strstr(message, " to ");
1056         if (!target)
1057                 return 0;
1058         target += strlen(" to ");
1059         strbuf_reset(&cb->buf);
1060         hashcpy(cb->nsha1, nsha1);
1061         for (end = target; *end && *end != '\n'; end++)
1062                 ;
1063         strbuf_add(&cb->buf, target, end - target);
1064         cb->found = 1;
1065         return 1;
1066 }
1067
1068 static void wt_status_get_detached_from(struct wt_status_state *state)
1069 {
1070         struct grab_1st_switch_cbdata cb;
1071         struct commit *commit;
1072         unsigned char sha1[20];
1073         char *ref = NULL;
1074
1075         strbuf_init(&cb.buf, 0);
1076         if (for_each_reflog_ent_reverse("HEAD", grab_1st_switch, &cb) <= 0) {
1077                 strbuf_release(&cb.buf);
1078                 return;
1079         }
1080
1081         if (dwim_ref(cb.buf.buf, cb.buf.len, sha1, &ref) == 1 &&
1082             /* sha1 is a commit? match without further lookup */
1083             (!hashcmp(cb.nsha1, sha1) ||
1084              /* perhaps sha1 is a tag, try to dereference to a commit */
1085              ((commit = lookup_commit_reference_gently(sha1, 1)) != NULL &&
1086               !hashcmp(cb.nsha1, commit->object.sha1)))) {
1087                 int ofs;
1088                 if (!prefixcmp(ref, "refs/tags/"))
1089                         ofs = strlen("refs/tags/");
1090                 else if (!prefixcmp(ref, "refs/remotes/"))
1091                         ofs = strlen("refs/remotes/");
1092                 else
1093                         ofs = 0;
1094                 state->detached_from = xstrdup(ref + ofs);
1095         } else
1096                 state->detached_from =
1097                         xstrdup(find_unique_abbrev(cb.nsha1, DEFAULT_ABBREV));
1098         hashcpy(state->detached_sha1, cb.nsha1);
1099
1100         free(ref);
1101         strbuf_release(&cb.buf);
1102 }
1103
1104 void wt_status_get_state(struct wt_status_state *state,
1105                          int get_detached_from)
1106 {
1107         struct stat st;
1108         unsigned char sha1[20];
1109
1110         if (!stat(git_path("MERGE_HEAD"), &st)) {
1111                 state->merge_in_progress = 1;
1112         } else if (!stat(git_path("rebase-apply"), &st)) {
1113                 if (!stat(git_path("rebase-apply/applying"), &st)) {
1114                         state->am_in_progress = 1;
1115                         if (!stat(git_path("rebase-apply/patch"), &st) && !st.st_size)
1116                                 state->am_empty_patch = 1;
1117                 } else {
1118                         state->rebase_in_progress = 1;
1119                         state->branch = read_and_strip_branch("rebase-apply/head-name");
1120                         state->onto = read_and_strip_branch("rebase-apply/onto");
1121                 }
1122         } else if (!stat(git_path("rebase-merge"), &st)) {
1123                 if (!stat(git_path("rebase-merge/interactive"), &st))
1124                         state->rebase_interactive_in_progress = 1;
1125                 else
1126                         state->rebase_in_progress = 1;
1127                 state->branch = read_and_strip_branch("rebase-merge/head-name");
1128                 state->onto = read_and_strip_branch("rebase-merge/onto");
1129         } else if (!stat(git_path("CHERRY_PICK_HEAD"), &st)) {
1130                 state->cherry_pick_in_progress = 1;
1131         }
1132         if (!stat(git_path("BISECT_LOG"), &st)) {
1133                 state->bisect_in_progress = 1;
1134                 state->branch = read_and_strip_branch("BISECT_START");
1135         }
1136         if (!stat(git_path("REVERT_HEAD"), &st) &&
1137             !get_sha1("REVERT_HEAD", sha1)) {
1138                 state->revert_in_progress = 1;
1139                 hashcpy(state->revert_head_sha1, sha1);
1140         }
1141
1142         if (get_detached_from)
1143                 wt_status_get_detached_from(state);
1144 }
1145
1146 static void wt_status_print_state(struct wt_status *s,
1147                                   struct wt_status_state *state)
1148 {
1149         const char *state_color = color(WT_STATUS_HEADER, s);
1150         if (state->merge_in_progress)
1151                 show_merge_in_progress(s, state, state_color);
1152         else if (state->am_in_progress)
1153                 show_am_in_progress(s, state, state_color);
1154         else if (state->rebase_in_progress || state->rebase_interactive_in_progress)
1155                 show_rebase_in_progress(s, state, state_color);
1156         else if (state->cherry_pick_in_progress)
1157                 show_cherry_pick_in_progress(s, state, state_color);
1158         else if (state->revert_in_progress)
1159                 show_revert_in_progress(s, state, state_color);
1160         if (state->bisect_in_progress)
1161                 show_bisect_in_progress(s, state, state_color);
1162 }
1163
1164 void wt_status_print(struct wt_status *s)
1165 {
1166         const char *branch_color = color(WT_STATUS_ONBRANCH, s);
1167         const char *branch_status_color = color(WT_STATUS_HEADER, s);
1168         struct wt_status_state state;
1169
1170         memset(&state, 0, sizeof(state));
1171         wt_status_get_state(&state,
1172                             s->branch && !strcmp(s->branch, "HEAD"));
1173
1174         if (s->branch) {
1175                 const char *on_what = _("On branch ");
1176                 const char *branch_name = s->branch;
1177                 if (!prefixcmp(branch_name, "refs/heads/"))
1178                         branch_name += 11;
1179                 else if (!strcmp(branch_name, "HEAD")) {
1180                         branch_status_color = color(WT_STATUS_NOBRANCH, s);
1181                         if (state.detached_from) {
1182                                 unsigned char sha1[20];
1183                                 branch_name = state.detached_from;
1184                                 if (!get_sha1("HEAD", sha1) &&
1185                                     !hashcmp(sha1, state.detached_sha1))
1186                                         on_what = _("HEAD detached at ");
1187                                 else
1188                                         on_what = _("HEAD detached from ");
1189                         } else {
1190                                 branch_name = "";
1191                                 on_what = _("Not currently on any branch.");
1192                         }
1193                 }
1194                 status_printf(s, color(WT_STATUS_HEADER, s), "");
1195                 status_printf_more(s, branch_status_color, "%s", on_what);
1196                 status_printf_more(s, branch_color, "%s\n", branch_name);
1197                 if (!s->is_initial)
1198                         wt_status_print_tracking(s);
1199         }
1200
1201         wt_status_print_state(s, &state);
1202         free(state.branch);
1203         free(state.onto);
1204         free(state.detached_from);
1205
1206         if (s->is_initial) {
1207                 status_printf_ln(s, color(WT_STATUS_HEADER, s), "");
1208                 status_printf_ln(s, color(WT_STATUS_HEADER, s), _("Initial commit"));
1209                 status_printf_ln(s, color(WT_STATUS_HEADER, s), "");
1210         }
1211
1212         wt_status_print_updated(s);
1213         wt_status_print_unmerged(s);
1214         wt_status_print_changed(s);
1215         if (s->submodule_summary &&
1216             (!s->ignore_submodule_arg ||
1217              strcmp(s->ignore_submodule_arg, "all"))) {
1218                 wt_status_print_submodule_summary(s, 0);  /* staged */
1219                 wt_status_print_submodule_summary(s, 1);  /* unstaged */
1220         }
1221         if (s->show_untracked_files) {
1222                 wt_status_print_other(s, &s->untracked, _("Untracked files"), "add");
1223                 if (s->show_ignored_files)
1224                         wt_status_print_other(s, &s->ignored, _("Ignored files"), "add -f");
1225                 if (advice_status_u_option && 2000 < s->untracked_in_ms) {
1226                         status_printf_ln(s, GIT_COLOR_NORMAL, "");
1227                         status_printf_ln(s, GIT_COLOR_NORMAL,
1228                                          _("It took %.2f seconds to enumerate untracked files. 'status -uno'\n"
1229                                            "may speed it up, but you have to be careful not to forget to add\n"
1230                                            "new files yourself (see 'git help status')."),
1231                                          s->untracked_in_ms / 1000.0);
1232                 }
1233         } else if (s->commitable)
1234                 status_printf_ln(s, GIT_COLOR_NORMAL, _("Untracked files not listed%s"),
1235                         advice_status_hints
1236                         ? _(" (use -u option to show untracked files)") : "");
1237
1238         if (s->verbose)
1239                 wt_status_print_verbose(s);
1240         if (!s->commitable) {
1241                 if (s->amend)
1242                         status_printf_ln(s, GIT_COLOR_NORMAL, _("No changes"));
1243                 else if (s->nowarn)
1244                         ; /* nothing */
1245                 else if (s->workdir_dirty) {
1246                         if (advice_status_hints)
1247                                 printf(_("no changes added to commit "
1248                                          "(use \"git add\" and/or \"git commit -a\")\n"));
1249                         else
1250                                 printf(_("no changes added to commit\n"));
1251                 } else if (s->untracked.nr) {
1252                         if (advice_status_hints)
1253                                 printf(_("nothing added to commit but untracked files "
1254                                          "present (use \"git add\" to track)\n"));
1255                         else
1256                                 printf(_("nothing added to commit but untracked files present\n"));
1257                 } else if (s->is_initial) {
1258                         if (advice_status_hints)
1259                                 printf(_("nothing to commit (create/copy files "
1260                                          "and use \"git add\" to track)\n"));
1261                         else
1262                                 printf(_("nothing to commit\n"));
1263                 } else if (!s->show_untracked_files) {
1264                         if (advice_status_hints)
1265                                 printf(_("nothing to commit (use -u to show untracked files)\n"));
1266                         else
1267                                 printf(_("nothing to commit\n"));
1268                 } else
1269                         printf(_("nothing to commit, working directory clean\n"));
1270         }
1271 }
1272
1273 static void wt_shortstatus_unmerged(struct string_list_item *it,
1274                            struct wt_status *s)
1275 {
1276         struct wt_status_change_data *d = it->util;
1277         const char *how = "??";
1278
1279         switch (d->stagemask) {
1280         case 1: how = "DD"; break; /* both deleted */
1281         case 2: how = "AU"; break; /* added by us */
1282         case 3: how = "UD"; break; /* deleted by them */
1283         case 4: how = "UA"; break; /* added by them */
1284         case 5: how = "DU"; break; /* deleted by us */
1285         case 6: how = "AA"; break; /* both added */
1286         case 7: how = "UU"; break; /* both modified */
1287         }
1288         color_fprintf(s->fp, color(WT_STATUS_UNMERGED, s), "%s", how);
1289         if (s->null_termination) {
1290                 fprintf(stdout, " %s%c", it->string, 0);
1291         } else {
1292                 struct strbuf onebuf = STRBUF_INIT;
1293                 const char *one;
1294                 one = quote_path(it->string, -1, &onebuf, s->prefix);
1295                 printf(" %s\n", one);
1296                 strbuf_release(&onebuf);
1297         }
1298 }
1299
1300 static void wt_shortstatus_status(struct string_list_item *it,
1301                          struct wt_status *s)
1302 {
1303         struct wt_status_change_data *d = it->util;
1304
1305         if (d->index_status)
1306                 color_fprintf(s->fp, color(WT_STATUS_UPDATED, s), "%c", d->index_status);
1307         else
1308                 putchar(' ');
1309         if (d->worktree_status)
1310                 color_fprintf(s->fp, color(WT_STATUS_CHANGED, s), "%c", d->worktree_status);
1311         else
1312                 putchar(' ');
1313         putchar(' ');
1314         if (s->null_termination) {
1315                 fprintf(stdout, "%s%c", it->string, 0);
1316                 if (d->head_path)
1317                         fprintf(stdout, "%s%c", d->head_path, 0);
1318         } else {
1319                 struct strbuf onebuf = STRBUF_INIT;
1320                 const char *one;
1321                 if (d->head_path) {
1322                         one = quote_path(d->head_path, -1, &onebuf, s->prefix);
1323                         if (*one != '"' && strchr(one, ' ') != NULL) {
1324                                 putchar('"');
1325                                 strbuf_addch(&onebuf, '"');
1326                                 one = onebuf.buf;
1327                         }
1328                         printf("%s -> ", one);
1329                         strbuf_release(&onebuf);
1330                 }
1331                 one = quote_path(it->string, -1, &onebuf, s->prefix);
1332                 if (*one != '"' && strchr(one, ' ') != NULL) {
1333                         putchar('"');
1334                         strbuf_addch(&onebuf, '"');
1335                         one = onebuf.buf;
1336                 }
1337                 printf("%s\n", one);
1338                 strbuf_release(&onebuf);
1339         }
1340 }
1341
1342 static void wt_shortstatus_other(struct string_list_item *it,
1343                                  struct wt_status *s, const char *sign)
1344 {
1345         if (s->null_termination) {
1346                 fprintf(stdout, "%s %s%c", sign, it->string, 0);
1347         } else {
1348                 struct strbuf onebuf = STRBUF_INIT;
1349                 const char *one;
1350                 one = quote_path(it->string, -1, &onebuf, s->prefix);
1351                 color_fprintf(s->fp, color(WT_STATUS_UNTRACKED, s), "%s", sign);
1352                 printf(" %s\n", one);
1353                 strbuf_release(&onebuf);
1354         }
1355 }
1356
1357 static void wt_shortstatus_print_tracking(struct wt_status *s)
1358 {
1359         struct branch *branch;
1360         const char *header_color = color(WT_STATUS_HEADER, s);
1361         const char *branch_color_local = color(WT_STATUS_LOCAL_BRANCH, s);
1362         const char *branch_color_remote = color(WT_STATUS_REMOTE_BRANCH, s);
1363
1364         const char *base;
1365         const char *branch_name;
1366         int num_ours, num_theirs;
1367
1368         color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "## ");
1369
1370         if (!s->branch)
1371                 return;
1372         branch_name = s->branch;
1373
1374         if (!prefixcmp(branch_name, "refs/heads/"))
1375                 branch_name += 11;
1376         else if (!strcmp(branch_name, "HEAD")) {
1377                 branch_name = _("HEAD (no branch)");
1378                 branch_color_local = color(WT_STATUS_NOBRANCH, s);
1379         }
1380
1381         branch = branch_get(s->branch + 11);
1382         if (s->is_initial)
1383                 color_fprintf(s->fp, header_color, _("Initial commit on "));
1384         if (!stat_tracking_info(branch, &num_ours, &num_theirs)) {
1385                 color_fprintf(s->fp, branch_color_local, "%s", branch_name);
1386                 fputc(s->null_termination ? '\0' : '\n', s->fp);
1387                 return;
1388         }
1389
1390         base = branch->merge[0]->dst;
1391         base = shorten_unambiguous_ref(base, 0);
1392         color_fprintf(s->fp, branch_color_local, "%s", branch_name);
1393         color_fprintf(s->fp, header_color, "...");
1394         color_fprintf(s->fp, branch_color_remote, "%s", base);
1395
1396         color_fprintf(s->fp, header_color, " [");
1397         if (!num_ours) {
1398                 color_fprintf(s->fp, header_color, _("behind "));
1399                 color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
1400         } else if (!num_theirs) {
1401                 color_fprintf(s->fp, header_color, _("ahead "));
1402                 color_fprintf(s->fp, branch_color_local, "%d", num_ours);
1403         } else {
1404                 color_fprintf(s->fp, header_color, _("ahead "));
1405                 color_fprintf(s->fp, branch_color_local, "%d", num_ours);
1406                 color_fprintf(s->fp, header_color, _(", behind "));
1407                 color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
1408         }
1409
1410         color_fprintf(s->fp, header_color, "]");
1411         fputc(s->null_termination ? '\0' : '\n', s->fp);
1412 }
1413
1414 void wt_shortstatus_print(struct wt_status *s)
1415 {
1416         int i;
1417
1418         if (s->show_branch)
1419                 wt_shortstatus_print_tracking(s);
1420
1421         for (i = 0; i < s->change.nr; i++) {
1422                 struct wt_status_change_data *d;
1423                 struct string_list_item *it;
1424
1425                 it = &(s->change.items[i]);
1426                 d = it->util;
1427                 if (d->stagemask)
1428                         wt_shortstatus_unmerged(it, s);
1429                 else
1430                         wt_shortstatus_status(it, s);
1431         }
1432         for (i = 0; i < s->untracked.nr; i++) {
1433                 struct string_list_item *it;
1434
1435                 it = &(s->untracked.items[i]);
1436                 wt_shortstatus_other(it, s, "??");
1437         }
1438         for (i = 0; i < s->ignored.nr; i++) {
1439                 struct string_list_item *it;
1440
1441                 it = &(s->ignored.items[i]);
1442                 wt_shortstatus_other(it, s, "!!");
1443         }
1444 }
1445
1446 void wt_porcelain_print(struct wt_status *s)
1447 {
1448         s->use_color = 0;
1449         s->relative_paths = 0;
1450         s->prefix = NULL;
1451         wt_shortstatus_print(s);
1452 }