Merge branch 'kb/doc-exclude-directory-semantics'
[git] / wt-status.c
1 #include "cache.h"
2 #include "pathspec.h"
3 #include "wt-status.h"
4 #include "object.h"
5 #include "dir.h"
6 #include "commit.h"
7 #include "diff.h"
8 #include "revision.h"
9 #include "diffcore.h"
10 #include "quote.h"
11 #include "run-command.h"
12 #include "argv-array.h"
13 #include "remote.h"
14 #include "refs.h"
15 #include "submodule.h"
16 #include "column.h"
17 #include "strbuf.h"
18 #include "utf8.h"
19
20 static char default_wt_status_colors[][COLOR_MAXLEN] = {
21         GIT_COLOR_NORMAL, /* WT_STATUS_HEADER */
22         GIT_COLOR_GREEN,  /* WT_STATUS_UPDATED */
23         GIT_COLOR_RED,    /* WT_STATUS_CHANGED */
24         GIT_COLOR_RED,    /* WT_STATUS_UNTRACKED */
25         GIT_COLOR_RED,    /* WT_STATUS_NOBRANCH */
26         GIT_COLOR_RED,    /* WT_STATUS_UNMERGED */
27         GIT_COLOR_GREEN,  /* WT_STATUS_LOCAL_BRANCH */
28         GIT_COLOR_RED,    /* WT_STATUS_REMOTE_BRANCH */
29         GIT_COLOR_NIL,    /* WT_STATUS_ONBRANCH */
30 };
31
32 static const char *color(int slot, struct wt_status *s)
33 {
34         const char *c = "";
35         if (want_color(s->use_color))
36                 c = s->color_palette[slot];
37         if (slot == WT_STATUS_ONBRANCH && color_is_nil(c))
38                 c = s->color_palette[WT_STATUS_HEADER];
39         return c;
40 }
41
42 static void status_vprintf(struct wt_status *s, int at_bol, const char *color,
43                 const char *fmt, va_list ap, const char *trail)
44 {
45         struct strbuf sb = STRBUF_INIT;
46         struct strbuf linebuf = STRBUF_INIT;
47         const char *line, *eol;
48
49         strbuf_vaddf(&sb, fmt, ap);
50         if (!sb.len) {
51                 if (s->display_comment_prefix) {
52                         strbuf_addch(&sb, comment_line_char);
53                         if (!trail)
54                                 strbuf_addch(&sb, ' ');
55                 }
56                 color_print_strbuf(s->fp, color, &sb);
57                 if (trail)
58                         fprintf(s->fp, "%s", trail);
59                 strbuf_release(&sb);
60                 return;
61         }
62         for (line = sb.buf; *line; line = eol + 1) {
63                 eol = strchr(line, '\n');
64
65                 strbuf_reset(&linebuf);
66                 if (at_bol && s->display_comment_prefix) {
67                         strbuf_addch(&linebuf, comment_line_char);
68                         if (*line != '\n' && *line != '\t')
69                                 strbuf_addch(&linebuf, ' ');
70                 }
71                 if (eol)
72                         strbuf_add(&linebuf, line, eol - line);
73                 else
74                         strbuf_addstr(&linebuf, line);
75                 color_print_strbuf(s->fp, color, &linebuf);
76                 if (eol)
77                         fprintf(s->fp, "\n");
78                 else
79                         break;
80                 at_bol = 1;
81         }
82         if (trail)
83                 fprintf(s->fp, "%s", trail);
84         strbuf_release(&linebuf);
85         strbuf_release(&sb);
86 }
87
88 void status_printf_ln(struct wt_status *s, const char *color,
89                         const char *fmt, ...)
90 {
91         va_list ap;
92
93         va_start(ap, fmt);
94         status_vprintf(s, 1, color, fmt, ap, "\n");
95         va_end(ap);
96 }
97
98 void status_printf(struct wt_status *s, const char *color,
99                         const char *fmt, ...)
100 {
101         va_list ap;
102
103         va_start(ap, fmt);
104         status_vprintf(s, 1, color, fmt, ap, NULL);
105         va_end(ap);
106 }
107
108 static void status_printf_more(struct wt_status *s, const char *color,
109                                const char *fmt, ...)
110 {
111         va_list ap;
112
113         va_start(ap, fmt);
114         status_vprintf(s, 0, color, fmt, ap, NULL);
115         va_end(ap);
116 }
117
118 void wt_status_prepare(struct wt_status *s)
119 {
120         unsigned char sha1[20];
121
122         memset(s, 0, sizeof(*s));
123         memcpy(s->color_palette, default_wt_status_colors,
124                sizeof(default_wt_status_colors));
125         s->show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
126         s->use_color = -1;
127         s->relative_paths = 1;
128         s->branch = resolve_refdup("HEAD", sha1, 0, NULL);
129         s->reference = "HEAD";
130         s->fp = stdout;
131         s->index_file = get_index_file();
132         s->change.strdup_strings = 1;
133         s->untracked.strdup_strings = 1;
134         s->ignored.strdup_strings = 1;
135         s->show_branch = -1;  /* unspecified */
136         s->display_comment_prefix = 0;
137 }
138
139 static void wt_status_print_unmerged_header(struct wt_status *s)
140 {
141         int i;
142         int del_mod_conflict = 0;
143         int both_deleted = 0;
144         int not_deleted = 0;
145         const char *c = color(WT_STATUS_HEADER, s);
146
147         status_printf_ln(s, c, _("Unmerged paths:"));
148
149         for (i = 0; i < s->change.nr; i++) {
150                 struct string_list_item *it = &(s->change.items[i]);
151                 struct wt_status_change_data *d = it->util;
152
153                 switch (d->stagemask) {
154                 case 0:
155                         break;
156                 case 1:
157                         both_deleted = 1;
158                         break;
159                 case 3:
160                 case 5:
161                         del_mod_conflict = 1;
162                         break;
163                 default:
164                         not_deleted = 1;
165                         break;
166                 }
167         }
168
169         if (!s->hints)
170                 return;
171         if (s->whence != FROM_COMMIT)
172                 ;
173         else if (!s->is_initial)
174                 status_printf_ln(s, c, _("  (use \"git reset %s <file>...\" to unstage)"), s->reference);
175         else
176                 status_printf_ln(s, c, _("  (use \"git rm --cached <file>...\" to unstage)"));
177
178         if (!both_deleted) {
179                 if (!del_mod_conflict)
180                         status_printf_ln(s, c, _("  (use \"git add <file>...\" to mark resolution)"));
181                 else
182                         status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" as appropriate to mark resolution)"));
183         } else if (!del_mod_conflict && !not_deleted) {
184                 status_printf_ln(s, c, _("  (use \"git rm <file>...\" to mark resolution)"));
185         } else {
186                 status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" as appropriate to mark resolution)"));
187         }
188         status_printf_ln(s, c, "");
189 }
190
191 static void wt_status_print_cached_header(struct wt_status *s)
192 {
193         const char *c = color(WT_STATUS_HEADER, s);
194
195         status_printf_ln(s, c, _("Changes to be committed:"));
196         if (!s->hints)
197                 return;
198         if (s->whence != FROM_COMMIT)
199                 ; /* NEEDSWORK: use "git reset --unresolve"??? */
200         else if (!s->is_initial)
201                 status_printf_ln(s, c, _("  (use \"git reset %s <file>...\" to unstage)"), s->reference);
202         else
203                 status_printf_ln(s, c, _("  (use \"git rm --cached <file>...\" to unstage)"));
204         status_printf_ln(s, c, "");
205 }
206
207 static void wt_status_print_dirty_header(struct wt_status *s,
208                                          int has_deleted,
209                                          int has_dirty_submodules)
210 {
211         const char *c = color(WT_STATUS_HEADER, s);
212
213         status_printf_ln(s, c, _("Changes not staged for commit:"));
214         if (!s->hints)
215                 return;
216         if (!has_deleted)
217                 status_printf_ln(s, c, _("  (use \"git add <file>...\" to update what will be committed)"));
218         else
219                 status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" to update what will be committed)"));
220         status_printf_ln(s, c, _("  (use \"git checkout -- <file>...\" to discard changes in working directory)"));
221         if (has_dirty_submodules)
222                 status_printf_ln(s, c, _("  (commit or discard the untracked or modified content in submodules)"));
223         status_printf_ln(s, c, "");
224 }
225
226 static void wt_status_print_other_header(struct wt_status *s,
227                                          const char *what,
228                                          const char *how)
229 {
230         const char *c = color(WT_STATUS_HEADER, s);
231         status_printf_ln(s, c, "%s:", what);
232         if (!s->hints)
233                 return;
234         status_printf_ln(s, c, _("  (use \"git %s <file>...\" to include in what will be committed)"), how);
235         status_printf_ln(s, c, "");
236 }
237
238 static void wt_status_print_trailer(struct wt_status *s)
239 {
240         status_printf_ln(s, color(WT_STATUS_HEADER, s), "");
241 }
242
243 #define quote_path quote_path_relative
244
245 static void wt_status_print_unmerged_data(struct wt_status *s,
246                                           struct string_list_item *it)
247 {
248         const char *c = color(WT_STATUS_UNMERGED, s);
249         struct wt_status_change_data *d = it->util;
250         struct strbuf onebuf = STRBUF_INIT;
251         const char *one, *how = _("bug");
252
253         one = quote_path(it->string, s->prefix, &onebuf);
254         status_printf(s, color(WT_STATUS_HEADER, s), "\t");
255         switch (d->stagemask) {
256         case 1: how = _("both deleted:"); break;
257         case 2: how = _("added by us:"); break;
258         case 3: how = _("deleted by them:"); break;
259         case 4: how = _("added by them:"); break;
260         case 5: how = _("deleted by us:"); break;
261         case 6: how = _("both added:"); break;
262         case 7: how = _("both modified:"); break;
263         }
264         status_printf_more(s, c, "%-20s%s\n", how, one);
265         strbuf_release(&onebuf);
266 }
267
268 static const char *wt_status_diff_status_string(int status)
269 {
270         switch (status) {
271         case DIFF_STATUS_ADDED:
272                 return _("new file");
273         case DIFF_STATUS_COPIED:
274                 return _("copied");
275         case DIFF_STATUS_DELETED:
276                 return _("deleted");
277         case DIFF_STATUS_MODIFIED:
278                 return _("modified");
279         case DIFF_STATUS_RENAMED:
280                 return _("renamed");
281         case DIFF_STATUS_TYPE_CHANGED:
282                 return _("typechange");
283         case DIFF_STATUS_UNKNOWN:
284                 return _("unknown");
285         case DIFF_STATUS_UNMERGED:
286                 return _("unmerged");
287         default:
288                 return NULL;
289         }
290 }
291
292 static void wt_status_print_change_data(struct wt_status *s,
293                                         int change_type,
294                                         struct string_list_item *it)
295 {
296         struct wt_status_change_data *d = it->util;
297         const char *c = color(change_type, s);
298         int status;
299         char *one_name;
300         char *two_name;
301         const char *one, *two;
302         struct strbuf onebuf = STRBUF_INIT, twobuf = STRBUF_INIT;
303         struct strbuf extra = STRBUF_INIT;
304         static char *padding;
305         const char *what;
306         int len;
307
308         if (!padding) {
309                 int width = 0;
310                 /* If DIFF_STATUS_* uses outside this range, we're in trouble */
311                 for (status = 'A'; status <= 'Z'; status++) {
312                         what = wt_status_diff_status_string(status);
313                         len = what ? strlen(what) : 0;
314                         if (len > width)
315                                 width = len;
316                 }
317                 width += 2;     /* colon and a space */
318                 padding = xmallocz(width);
319                 memset(padding, ' ', width);
320         }
321
322         one_name = two_name = it->string;
323         switch (change_type) {
324         case WT_STATUS_UPDATED:
325                 status = d->index_status;
326                 if (d->head_path)
327                         one_name = d->head_path;
328                 break;
329         case WT_STATUS_CHANGED:
330                 if (d->new_submodule_commits || d->dirty_submodule) {
331                         strbuf_addstr(&extra, " (");
332                         if (d->new_submodule_commits)
333                                 strbuf_addf(&extra, _("new commits, "));
334                         if (d->dirty_submodule & DIRTY_SUBMODULE_MODIFIED)
335                                 strbuf_addf(&extra, _("modified content, "));
336                         if (d->dirty_submodule & DIRTY_SUBMODULE_UNTRACKED)
337                                 strbuf_addf(&extra, _("untracked content, "));
338                         strbuf_setlen(&extra, extra.len - 2);
339                         strbuf_addch(&extra, ')');
340                 }
341                 status = d->worktree_status;
342                 break;
343         default:
344                 die("BUG: unhandled change_type %d in wt_status_print_change_data",
345                     change_type);
346         }
347
348         one = quote_path(one_name, s->prefix, &onebuf);
349         two = quote_path(two_name, s->prefix, &twobuf);
350
351         status_printf(s, color(WT_STATUS_HEADER, s), "\t");
352         what = wt_status_diff_status_string(status);
353         if (!what)
354                 die(_("bug: unhandled diff status %c"), status);
355         /* 1 for colon, which is not part of "what" */
356         len = strlen(padding) - (utf8_strwidth(what) + 1);
357         assert(len >= 0);
358         if (status == DIFF_STATUS_COPIED || status == DIFF_STATUS_RENAMED)
359                 status_printf_more(s, c, "%s:%.*s%s -> %s",
360                                    what, len, padding, one, two);
361         else
362                 status_printf_more(s, c, "%s:%.*s%s",
363                                    what, len, padding, one);
364         if (extra.len) {
365                 status_printf_more(s, color(WT_STATUS_HEADER, s), "%s", extra.buf);
366                 strbuf_release(&extra);
367         }
368         status_printf_more(s, GIT_COLOR_NORMAL, "\n");
369         strbuf_release(&onebuf);
370         strbuf_release(&twobuf);
371 }
372
373 static void wt_status_collect_changed_cb(struct diff_queue_struct *q,
374                                          struct diff_options *options,
375                                          void *data)
376 {
377         struct wt_status *s = data;
378         int i;
379
380         if (!q->nr)
381                 return;
382         s->workdir_dirty = 1;
383         for (i = 0; i < q->nr; i++) {
384                 struct diff_filepair *p;
385                 struct string_list_item *it;
386                 struct wt_status_change_data *d;
387
388                 p = q->queue[i];
389                 it = string_list_insert(&s->change, p->one->path);
390                 d = it->util;
391                 if (!d) {
392                         d = xcalloc(1, sizeof(*d));
393                         it->util = d;
394                 }
395                 if (!d->worktree_status)
396                         d->worktree_status = p->status;
397                 d->dirty_submodule = p->two->dirty_submodule;
398                 if (S_ISGITLINK(p->two->mode))
399                         d->new_submodule_commits = !!hashcmp(p->one->sha1, p->two->sha1);
400         }
401 }
402
403 static int unmerged_mask(const char *path)
404 {
405         int pos, mask;
406         const struct cache_entry *ce;
407
408         pos = cache_name_pos(path, strlen(path));
409         if (0 <= pos)
410                 return 0;
411
412         mask = 0;
413         pos = -pos-1;
414         while (pos < active_nr) {
415                 ce = active_cache[pos++];
416                 if (strcmp(ce->name, path) || !ce_stage(ce))
417                         break;
418                 mask |= (1 << (ce_stage(ce) - 1));
419         }
420         return mask;
421 }
422
423 static void wt_status_collect_updated_cb(struct diff_queue_struct *q,
424                                          struct diff_options *options,
425                                          void *data)
426 {
427         struct wt_status *s = data;
428         int i;
429
430         for (i = 0; i < q->nr; i++) {
431                 struct diff_filepair *p;
432                 struct string_list_item *it;
433                 struct wt_status_change_data *d;
434
435                 p = q->queue[i];
436                 it = string_list_insert(&s->change, p->two->path);
437                 d = it->util;
438                 if (!d) {
439                         d = xcalloc(1, sizeof(*d));
440                         it->util = d;
441                 }
442                 if (!d->index_status)
443                         d->index_status = p->status;
444                 switch (p->status) {
445                 case DIFF_STATUS_COPIED:
446                 case DIFF_STATUS_RENAMED:
447                         d->head_path = xstrdup(p->one->path);
448                         break;
449                 case DIFF_STATUS_UNMERGED:
450                         d->stagemask = unmerged_mask(p->two->path);
451                         break;
452                 }
453         }
454 }
455
456 static void wt_status_collect_changes_worktree(struct wt_status *s)
457 {
458         struct rev_info rev;
459
460         init_revisions(&rev, NULL);
461         setup_revisions(0, NULL, &rev, NULL);
462         rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
463         DIFF_OPT_SET(&rev.diffopt, DIRTY_SUBMODULES);
464         if (!s->show_untracked_files)
465                 DIFF_OPT_SET(&rev.diffopt, IGNORE_UNTRACKED_IN_SUBMODULES);
466         if (s->ignore_submodule_arg) {
467                 DIFF_OPT_SET(&rev.diffopt, OVERRIDE_SUBMODULE_CONFIG);
468                 handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
469         }
470         rev.diffopt.format_callback = wt_status_collect_changed_cb;
471         rev.diffopt.format_callback_data = s;
472         copy_pathspec(&rev.prune_data, &s->pathspec);
473         run_diff_files(&rev, 0);
474 }
475
476 static void wt_status_collect_changes_index(struct wt_status *s)
477 {
478         struct rev_info rev;
479         struct setup_revision_opt opt;
480
481         init_revisions(&rev, NULL);
482         memset(&opt, 0, sizeof(opt));
483         opt.def = s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference;
484         setup_revisions(0, NULL, &rev, &opt);
485
486         if (s->ignore_submodule_arg) {
487                 DIFF_OPT_SET(&rev.diffopt, OVERRIDE_SUBMODULE_CONFIG);
488                 handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
489         }
490
491         rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
492         rev.diffopt.format_callback = wt_status_collect_updated_cb;
493         rev.diffopt.format_callback_data = s;
494         rev.diffopt.detect_rename = 1;
495         rev.diffopt.rename_limit = 200;
496         rev.diffopt.break_opt = 0;
497         copy_pathspec(&rev.prune_data, &s->pathspec);
498         run_diff_index(&rev, 1);
499 }
500
501 static void wt_status_collect_changes_initial(struct wt_status *s)
502 {
503         int i;
504
505         for (i = 0; i < active_nr; i++) {
506                 struct string_list_item *it;
507                 struct wt_status_change_data *d;
508                 const struct cache_entry *ce = active_cache[i];
509
510                 if (!ce_path_match(ce, &s->pathspec))
511                         continue;
512                 it = string_list_insert(&s->change, ce->name);
513                 d = it->util;
514                 if (!d) {
515                         d = xcalloc(1, sizeof(*d));
516                         it->util = d;
517                 }
518                 if (ce_stage(ce)) {
519                         d->index_status = DIFF_STATUS_UNMERGED;
520                         d->stagemask |= (1 << (ce_stage(ce) - 1));
521                 }
522                 else
523                         d->index_status = DIFF_STATUS_ADDED;
524         }
525 }
526
527 static void wt_status_collect_untracked(struct wt_status *s)
528 {
529         int i;
530         struct dir_struct dir;
531         struct timeval t_begin;
532
533         if (!s->show_untracked_files)
534                 return;
535
536         if (advice_status_u_option)
537                 gettimeofday(&t_begin, NULL);
538
539         memset(&dir, 0, sizeof(dir));
540         if (s->show_untracked_files != SHOW_ALL_UNTRACKED_FILES)
541                 dir.flags |=
542                         DIR_SHOW_OTHER_DIRECTORIES | DIR_HIDE_EMPTY_DIRECTORIES;
543         if (s->show_ignored_files)
544                 dir.flags |= DIR_SHOW_IGNORED_TOO;
545         setup_standard_excludes(&dir);
546
547         fill_directory(&dir, &s->pathspec);
548
549         for (i = 0; i < dir.nr; i++) {
550                 struct dir_entry *ent = dir.entries[i];
551                 if (cache_name_is_other(ent->name, ent->len) &&
552                     match_pathspec_depth(&s->pathspec, ent->name, ent->len, 0, NULL))
553                         string_list_insert(&s->untracked, ent->name);
554                 free(ent);
555         }
556
557         for (i = 0; i < dir.ignored_nr; i++) {
558                 struct dir_entry *ent = dir.ignored[i];
559                 if (cache_name_is_other(ent->name, ent->len) &&
560                     match_pathspec_depth(&s->pathspec, ent->name, ent->len, 0, NULL))
561                         string_list_insert(&s->ignored, ent->name);
562                 free(ent);
563         }
564
565         free(dir.entries);
566         free(dir.ignored);
567         clear_directory(&dir);
568
569         if (advice_status_u_option) {
570                 struct timeval t_end;
571                 gettimeofday(&t_end, NULL);
572                 s->untracked_in_ms =
573                         (uint64_t)t_end.tv_sec * 1000 + t_end.tv_usec / 1000 -
574                         ((uint64_t)t_begin.tv_sec * 1000 + t_begin.tv_usec / 1000);
575         }
576 }
577
578 void wt_status_collect(struct wt_status *s)
579 {
580         wt_status_collect_changes_worktree(s);
581
582         if (s->is_initial)
583                 wt_status_collect_changes_initial(s);
584         else
585                 wt_status_collect_changes_index(s);
586         wt_status_collect_untracked(s);
587 }
588
589 static void wt_status_print_unmerged(struct wt_status *s)
590 {
591         int shown_header = 0;
592         int i;
593
594         for (i = 0; i < s->change.nr; i++) {
595                 struct wt_status_change_data *d;
596                 struct string_list_item *it;
597                 it = &(s->change.items[i]);
598                 d = it->util;
599                 if (!d->stagemask)
600                         continue;
601                 if (!shown_header) {
602                         wt_status_print_unmerged_header(s);
603                         shown_header = 1;
604                 }
605                 wt_status_print_unmerged_data(s, it);
606         }
607         if (shown_header)
608                 wt_status_print_trailer(s);
609
610 }
611
612 static void wt_status_print_updated(struct wt_status *s)
613 {
614         int shown_header = 0;
615         int i;
616
617         for (i = 0; i < s->change.nr; i++) {
618                 struct wt_status_change_data *d;
619                 struct string_list_item *it;
620                 it = &(s->change.items[i]);
621                 d = it->util;
622                 if (!d->index_status ||
623                     d->index_status == DIFF_STATUS_UNMERGED)
624                         continue;
625                 if (!shown_header) {
626                         wt_status_print_cached_header(s);
627                         s->commitable = 1;
628                         shown_header = 1;
629                 }
630                 wt_status_print_change_data(s, WT_STATUS_UPDATED, it);
631         }
632         if (shown_header)
633                 wt_status_print_trailer(s);
634 }
635
636 /*
637  * -1 : has delete
638  *  0 : no change
639  *  1 : some change but no delete
640  */
641 static int wt_status_check_worktree_changes(struct wt_status *s,
642                                              int *dirty_submodules)
643 {
644         int i;
645         int changes = 0;
646
647         *dirty_submodules = 0;
648
649         for (i = 0; i < s->change.nr; i++) {
650                 struct wt_status_change_data *d;
651                 d = s->change.items[i].util;
652                 if (!d->worktree_status ||
653                     d->worktree_status == DIFF_STATUS_UNMERGED)
654                         continue;
655                 if (!changes)
656                         changes = 1;
657                 if (d->dirty_submodule)
658                         *dirty_submodules = 1;
659                 if (d->worktree_status == DIFF_STATUS_DELETED)
660                         changes = -1;
661         }
662         return changes;
663 }
664
665 static void wt_status_print_changed(struct wt_status *s)
666 {
667         int i, dirty_submodules;
668         int worktree_changes = wt_status_check_worktree_changes(s, &dirty_submodules);
669
670         if (!worktree_changes)
671                 return;
672
673         wt_status_print_dirty_header(s, worktree_changes < 0, dirty_submodules);
674
675         for (i = 0; i < s->change.nr; i++) {
676                 struct wt_status_change_data *d;
677                 struct string_list_item *it;
678                 it = &(s->change.items[i]);
679                 d = it->util;
680                 if (!d->worktree_status ||
681                     d->worktree_status == DIFF_STATUS_UNMERGED)
682                         continue;
683                 wt_status_print_change_data(s, WT_STATUS_CHANGED, it);
684         }
685         wt_status_print_trailer(s);
686 }
687
688 static void wt_status_print_submodule_summary(struct wt_status *s, int uncommitted)
689 {
690         struct child_process sm_summary;
691         char summary_limit[64];
692         char index[PATH_MAX];
693         const char *env[] = { NULL, NULL };
694         struct argv_array argv = ARGV_ARRAY_INIT;
695         struct strbuf cmd_stdout = STRBUF_INIT;
696         struct strbuf summary = STRBUF_INIT;
697         char *summary_content;
698         size_t len;
699
700         sprintf(summary_limit, "%d", s->submodule_summary);
701         snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", s->index_file);
702
703         env[0] = index;
704         argv_array_push(&argv, "submodule");
705         argv_array_push(&argv, "summary");
706         argv_array_push(&argv, uncommitted ? "--files" : "--cached");
707         argv_array_push(&argv, "--for-status");
708         argv_array_push(&argv, "--summary-limit");
709         argv_array_push(&argv, summary_limit);
710         if (!uncommitted)
711                 argv_array_push(&argv, s->amend ? "HEAD^" : "HEAD");
712
713         memset(&sm_summary, 0, sizeof(sm_summary));
714         sm_summary.argv = argv.argv;
715         sm_summary.env = env;
716         sm_summary.git_cmd = 1;
717         sm_summary.no_stdin = 1;
718         fflush(s->fp);
719         sm_summary.out = -1;
720
721         run_command(&sm_summary);
722         argv_array_clear(&argv);
723
724         len = strbuf_read(&cmd_stdout, sm_summary.out, 1024);
725
726         /* prepend header, only if there's an actual output */
727         if (len) {
728                 if (uncommitted)
729                         strbuf_addstr(&summary, _("Submodules changed but not updated:"));
730                 else
731                         strbuf_addstr(&summary, _("Submodule changes to be committed:"));
732                 strbuf_addstr(&summary, "\n\n");
733         }
734         strbuf_addbuf(&summary, &cmd_stdout);
735         strbuf_release(&cmd_stdout);
736
737         if (s->display_comment_prefix) {
738                 summary_content = strbuf_detach(&summary, &len);
739                 strbuf_add_commented_lines(&summary, summary_content, len);
740                 free(summary_content);
741         }
742
743         fputs(summary.buf, s->fp);
744         strbuf_release(&summary);
745 }
746
747 static void wt_status_print_other(struct wt_status *s,
748                                   struct string_list *l,
749                                   const char *what,
750                                   const char *how)
751 {
752         int i;
753         struct strbuf buf = STRBUF_INIT;
754         static struct string_list output = STRING_LIST_INIT_DUP;
755         struct column_options copts;
756
757         if (!l->nr)
758                 return;
759
760         wt_status_print_other_header(s, what, how);
761
762         for (i = 0; i < l->nr; i++) {
763                 struct string_list_item *it;
764                 const char *path;
765                 it = &(l->items[i]);
766                 path = quote_path(it->string, s->prefix, &buf);
767                 if (column_active(s->colopts)) {
768                         string_list_append(&output, path);
769                         continue;
770                 }
771                 status_printf(s, color(WT_STATUS_HEADER, s), "\t");
772                 status_printf_more(s, color(WT_STATUS_UNTRACKED, s),
773                                    "%s\n", path);
774         }
775
776         strbuf_release(&buf);
777         if (!column_active(s->colopts))
778                 goto conclude;
779
780         strbuf_addf(&buf, "%s%s\t%s",
781                     color(WT_STATUS_HEADER, s),
782                     s->display_comment_prefix ? "#" : "",
783                     color(WT_STATUS_UNTRACKED, s));
784         memset(&copts, 0, sizeof(copts));
785         copts.padding = 1;
786         copts.indent = buf.buf;
787         if (want_color(s->use_color))
788                 copts.nl = GIT_COLOR_RESET "\n";
789         print_columns(&output, s->colopts, &copts);
790         string_list_clear(&output, 0);
791         strbuf_release(&buf);
792 conclude:
793         status_printf_ln(s, GIT_COLOR_NORMAL, "");
794 }
795
796 static void wt_status_print_verbose(struct wt_status *s)
797 {
798         struct rev_info rev;
799         struct setup_revision_opt opt;
800
801         init_revisions(&rev, NULL);
802         DIFF_OPT_SET(&rev.diffopt, ALLOW_TEXTCONV);
803
804         memset(&opt, 0, sizeof(opt));
805         opt.def = s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference;
806         setup_revisions(0, NULL, &rev, &opt);
807
808         rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
809         rev.diffopt.detect_rename = 1;
810         rev.diffopt.file = s->fp;
811         rev.diffopt.close_file = 0;
812         /*
813          * If we're not going to stdout, then we definitely don't
814          * want color, since we are going to the commit message
815          * file (and even the "auto" setting won't work, since it
816          * will have checked isatty on stdout).
817          */
818         if (s->fp != stdout)
819                 rev.diffopt.use_color = 0;
820         run_diff_index(&rev, 1);
821 }
822
823 static void wt_status_print_tracking(struct wt_status *s)
824 {
825         struct strbuf sb = STRBUF_INIT;
826         const char *cp, *ep;
827         struct branch *branch;
828         char comment_line_string[3];
829         int i;
830
831         assert(s->branch && !s->is_initial);
832         if (prefixcmp(s->branch, "refs/heads/"))
833                 return;
834         branch = branch_get(s->branch + 11);
835         if (!format_tracking_info(branch, &sb))
836                 return;
837
838         i = 0;
839         if (s->display_comment_prefix) {
840                 comment_line_string[i++] = comment_line_char;
841                 comment_line_string[i++] = ' ';
842         }
843         comment_line_string[i] = '\0';
844
845         for (cp = sb.buf; (ep = strchr(cp, '\n')) != NULL; cp = ep + 1)
846                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s),
847                                  "%s%.*s", comment_line_string,
848                                  (int)(ep - cp), cp);
849         if (s->display_comment_prefix)
850                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "%c",
851                                  comment_line_char);
852         else
853                 fprintf_ln(s->fp, "");
854 }
855
856 static int has_unmerged(struct wt_status *s)
857 {
858         int i;
859
860         for (i = 0; i < s->change.nr; i++) {
861                 struct wt_status_change_data *d;
862                 d = s->change.items[i].util;
863                 if (d->stagemask)
864                         return 1;
865         }
866         return 0;
867 }
868
869 static void show_merge_in_progress(struct wt_status *s,
870                                 struct wt_status_state *state,
871                                 const char *color)
872 {
873         if (has_unmerged(s)) {
874                 status_printf_ln(s, color, _("You have unmerged paths."));
875                 if (s->hints)
876                         status_printf_ln(s, color,
877                                 _("  (fix conflicts and run \"git commit\")"));
878         } else {
879                 status_printf_ln(s, color,
880                         _("All conflicts fixed but you are still merging."));
881                 if (s->hints)
882                         status_printf_ln(s, color,
883                                 _("  (use \"git commit\" to conclude merge)"));
884         }
885         wt_status_print_trailer(s);
886 }
887
888 static void show_am_in_progress(struct wt_status *s,
889                                 struct wt_status_state *state,
890                                 const char *color)
891 {
892         status_printf_ln(s, color,
893                 _("You are in the middle of an am session."));
894         if (state->am_empty_patch)
895                 status_printf_ln(s, color,
896                         _("The current patch is empty."));
897         if (s->hints) {
898                 if (!state->am_empty_patch)
899                         status_printf_ln(s, color,
900                                 _("  (fix conflicts and then run \"git am --continue\")"));
901                 status_printf_ln(s, color,
902                         _("  (use \"git am --skip\" to skip this patch)"));
903                 status_printf_ln(s, color,
904                         _("  (use \"git am --abort\" to restore the original branch)"));
905         }
906         wt_status_print_trailer(s);
907 }
908
909 static char *read_line_from_git_path(const char *filename)
910 {
911         struct strbuf buf = STRBUF_INIT;
912         FILE *fp = fopen(git_path("%s", filename), "r");
913         if (!fp) {
914                 strbuf_release(&buf);
915                 return NULL;
916         }
917         strbuf_getline(&buf, fp, '\n');
918         if (!fclose(fp)) {
919                 return strbuf_detach(&buf, NULL);
920         } else {
921                 strbuf_release(&buf);
922                 return NULL;
923         }
924 }
925
926 static int split_commit_in_progress(struct wt_status *s)
927 {
928         int split_in_progress = 0;
929         char *head = read_line_from_git_path("HEAD");
930         char *orig_head = read_line_from_git_path("ORIG_HEAD");
931         char *rebase_amend = read_line_from_git_path("rebase-merge/amend");
932         char *rebase_orig_head = read_line_from_git_path("rebase-merge/orig-head");
933
934         if (!head || !orig_head || !rebase_amend || !rebase_orig_head ||
935             !s->branch || strcmp(s->branch, "HEAD"))
936                 return split_in_progress;
937
938         if (!strcmp(rebase_amend, rebase_orig_head)) {
939                 if (strcmp(head, rebase_amend))
940                         split_in_progress = 1;
941         } else if (strcmp(orig_head, rebase_orig_head)) {
942                 split_in_progress = 1;
943         }
944
945         if (!s->amend && !s->nowarn && !s->workdir_dirty)
946                 split_in_progress = 0;
947
948         free(head);
949         free(orig_head);
950         free(rebase_amend);
951         free(rebase_orig_head);
952         return split_in_progress;
953 }
954
955 static void show_rebase_in_progress(struct wt_status *s,
956                                 struct wt_status_state *state,
957                                 const char *color)
958 {
959         struct stat st;
960
961         if (has_unmerged(s)) {
962                 if (state->branch)
963                         status_printf_ln(s, color,
964                                          _("You are currently rebasing branch '%s' on '%s'."),
965                                          state->branch,
966                                          state->onto);
967                 else
968                         status_printf_ln(s, color,
969                                          _("You are currently rebasing."));
970                 if (s->hints) {
971                         status_printf_ln(s, color,
972                                 _("  (fix conflicts and then run \"git rebase --continue\")"));
973                         status_printf_ln(s, color,
974                                 _("  (use \"git rebase --skip\" to skip this patch)"));
975                         status_printf_ln(s, color,
976                                 _("  (use \"git rebase --abort\" to check out the original branch)"));
977                 }
978         } else if (state->rebase_in_progress || !stat(git_path("MERGE_MSG"), &st)) {
979                 if (state->branch)
980                         status_printf_ln(s, color,
981                                          _("You are currently rebasing branch '%s' on '%s'."),
982                                          state->branch,
983                                          state->onto);
984                 else
985                         status_printf_ln(s, color,
986                                          _("You are currently rebasing."));
987                 if (s->hints)
988                         status_printf_ln(s, color,
989                                 _("  (all conflicts fixed: run \"git rebase --continue\")"));
990         } else if (split_commit_in_progress(s)) {
991                 if (state->branch)
992                         status_printf_ln(s, color,
993                                          _("You are currently splitting a commit while rebasing branch '%s' on '%s'."),
994                                          state->branch,
995                                          state->onto);
996                 else
997                         status_printf_ln(s, color,
998                                          _("You are currently splitting a commit during a rebase."));
999                 if (s->hints)
1000                         status_printf_ln(s, color,
1001                                 _("  (Once your working directory is clean, run \"git rebase --continue\")"));
1002         } else {
1003                 if (state->branch)
1004                         status_printf_ln(s, color,
1005                                          _("You are currently editing a commit while rebasing branch '%s' on '%s'."),
1006                                          state->branch,
1007                                          state->onto);
1008                 else
1009                         status_printf_ln(s, color,
1010                                          _("You are currently editing a commit during a rebase."));
1011                 if (s->hints && !s->amend) {
1012                         status_printf_ln(s, color,
1013                                 _("  (use \"git commit --amend\" to amend the current commit)"));
1014                         status_printf_ln(s, color,
1015                                 _("  (use \"git rebase --continue\" once you are satisfied with your changes)"));
1016                 }
1017         }
1018         wt_status_print_trailer(s);
1019 }
1020
1021 static void show_cherry_pick_in_progress(struct wt_status *s,
1022                                         struct wt_status_state *state,
1023                                         const char *color)
1024 {
1025         status_printf_ln(s, color, _("You are currently cherry-picking commit %s."),
1026                         find_unique_abbrev(state->cherry_pick_head_sha1, DEFAULT_ABBREV));
1027         if (s->hints) {
1028                 if (has_unmerged(s))
1029                         status_printf_ln(s, color,
1030                                 _("  (fix conflicts and run \"git cherry-pick --continue\")"));
1031                 else
1032                         status_printf_ln(s, color,
1033                                 _("  (all conflicts fixed: run \"git cherry-pick --continue\")"));
1034                 status_printf_ln(s, color,
1035                         _("  (use \"git cherry-pick --abort\" to cancel the cherry-pick operation)"));
1036         }
1037         wt_status_print_trailer(s);
1038 }
1039
1040 static void show_revert_in_progress(struct wt_status *s,
1041                                         struct wt_status_state *state,
1042                                         const char *color)
1043 {
1044         status_printf_ln(s, color, _("You are currently reverting commit %s."),
1045                          find_unique_abbrev(state->revert_head_sha1, DEFAULT_ABBREV));
1046         if (s->hints) {
1047                 if (has_unmerged(s))
1048                         status_printf_ln(s, color,
1049                                 _("  (fix conflicts and run \"git revert --continue\")"));
1050                 else
1051                         status_printf_ln(s, color,
1052                                 _("  (all conflicts fixed: run \"git revert --continue\")"));
1053                 status_printf_ln(s, color,
1054                         _("  (use \"git revert --abort\" to cancel the revert operation)"));
1055         }
1056         wt_status_print_trailer(s);
1057 }
1058
1059 static void show_bisect_in_progress(struct wt_status *s,
1060                                 struct wt_status_state *state,
1061                                 const char *color)
1062 {
1063         if (state->branch)
1064                 status_printf_ln(s, color,
1065                                  _("You are currently bisecting, started from branch '%s'."),
1066                                  state->branch);
1067         else
1068                 status_printf_ln(s, color,
1069                                  _("You are currently bisecting."));
1070         if (s->hints)
1071                 status_printf_ln(s, color,
1072                         _("  (use \"git bisect reset\" to get back to the original branch)"));
1073         wt_status_print_trailer(s);
1074 }
1075
1076 /*
1077  * Extract branch information from rebase/bisect
1078  */
1079 static char *read_and_strip_branch(const char *path)
1080 {
1081         struct strbuf sb = STRBUF_INIT;
1082         unsigned char sha1[20];
1083
1084         if (strbuf_read_file(&sb, git_path("%s", path), 0) <= 0)
1085                 goto got_nothing;
1086
1087         while (&sb.len && sb.buf[sb.len - 1] == '\n')
1088                 strbuf_setlen(&sb, sb.len - 1);
1089         if (!sb.len)
1090                 goto got_nothing;
1091         if (!prefixcmp(sb.buf, "refs/heads/"))
1092                 strbuf_remove(&sb,0, strlen("refs/heads/"));
1093         else if (!prefixcmp(sb.buf, "refs/"))
1094                 ;
1095         else if (!get_sha1_hex(sb.buf, sha1)) {
1096                 const char *abbrev;
1097                 abbrev = find_unique_abbrev(sha1, DEFAULT_ABBREV);
1098                 strbuf_reset(&sb);
1099                 strbuf_addstr(&sb, abbrev);
1100         } else if (!strcmp(sb.buf, "detached HEAD")) /* rebase */
1101                 goto got_nothing;
1102         else                    /* bisect */
1103                 ;
1104         return strbuf_detach(&sb, NULL);
1105
1106 got_nothing:
1107         strbuf_release(&sb);
1108         return NULL;
1109 }
1110
1111 struct grab_1st_switch_cbdata {
1112         struct strbuf buf;
1113         unsigned char nsha1[20];
1114 };
1115
1116 static int grab_1st_switch(unsigned char *osha1, unsigned char *nsha1,
1117                            const char *email, unsigned long timestamp, int tz,
1118                            const char *message, void *cb_data)
1119 {
1120         struct grab_1st_switch_cbdata *cb = cb_data;
1121         const char *target = NULL, *end;
1122
1123         if (prefixcmp(message, "checkout: moving from "))
1124                 return 0;
1125         message += strlen("checkout: moving from ");
1126         target = strstr(message, " to ");
1127         if (!target)
1128                 return 0;
1129         target += strlen(" to ");
1130         strbuf_reset(&cb->buf);
1131         hashcpy(cb->nsha1, nsha1);
1132         for (end = target; *end && *end != '\n'; end++)
1133                 ;
1134         strbuf_add(&cb->buf, target, end - target);
1135         return 1;
1136 }
1137
1138 static void wt_status_get_detached_from(struct wt_status_state *state)
1139 {
1140         struct grab_1st_switch_cbdata cb;
1141         struct commit *commit;
1142         unsigned char sha1[20];
1143         char *ref = NULL;
1144
1145         strbuf_init(&cb.buf, 0);
1146         if (for_each_reflog_ent_reverse("HEAD", grab_1st_switch, &cb) <= 0) {
1147                 strbuf_release(&cb.buf);
1148                 return;
1149         }
1150
1151         if (dwim_ref(cb.buf.buf, cb.buf.len, sha1, &ref) == 1 &&
1152             /* sha1 is a commit? match without further lookup */
1153             (!hashcmp(cb.nsha1, sha1) ||
1154              /* perhaps sha1 is a tag, try to dereference to a commit */
1155              ((commit = lookup_commit_reference_gently(sha1, 1)) != NULL &&
1156               !hashcmp(cb.nsha1, commit->object.sha1)))) {
1157                 int ofs;
1158                 if (!prefixcmp(ref, "refs/tags/"))
1159                         ofs = strlen("refs/tags/");
1160                 else if (!prefixcmp(ref, "refs/remotes/"))
1161                         ofs = strlen("refs/remotes/");
1162                 else
1163                         ofs = 0;
1164                 state->detached_from = xstrdup(ref + ofs);
1165         } else
1166                 state->detached_from =
1167                         xstrdup(find_unique_abbrev(cb.nsha1, DEFAULT_ABBREV));
1168         hashcpy(state->detached_sha1, cb.nsha1);
1169
1170         free(ref);
1171         strbuf_release(&cb.buf);
1172 }
1173
1174 void wt_status_get_state(struct wt_status_state *state,
1175                          int get_detached_from)
1176 {
1177         struct stat st;
1178         unsigned char sha1[20];
1179
1180         if (!stat(git_path("MERGE_HEAD"), &st)) {
1181                 state->merge_in_progress = 1;
1182         } else if (!stat(git_path("rebase-apply"), &st)) {
1183                 if (!stat(git_path("rebase-apply/applying"), &st)) {
1184                         state->am_in_progress = 1;
1185                         if (!stat(git_path("rebase-apply/patch"), &st) && !st.st_size)
1186                                 state->am_empty_patch = 1;
1187                 } else {
1188                         state->rebase_in_progress = 1;
1189                         state->branch = read_and_strip_branch("rebase-apply/head-name");
1190                         state->onto = read_and_strip_branch("rebase-apply/onto");
1191                 }
1192         } else if (!stat(git_path("rebase-merge"), &st)) {
1193                 if (!stat(git_path("rebase-merge/interactive"), &st))
1194                         state->rebase_interactive_in_progress = 1;
1195                 else
1196                         state->rebase_in_progress = 1;
1197                 state->branch = read_and_strip_branch("rebase-merge/head-name");
1198                 state->onto = read_and_strip_branch("rebase-merge/onto");
1199         } else if (!stat(git_path("CHERRY_PICK_HEAD"), &st) &&
1200                         !get_sha1("CHERRY_PICK_HEAD", sha1)) {
1201                 state->cherry_pick_in_progress = 1;
1202                 hashcpy(state->cherry_pick_head_sha1, sha1);
1203         }
1204         if (!stat(git_path("BISECT_LOG"), &st)) {
1205                 state->bisect_in_progress = 1;
1206                 state->branch = read_and_strip_branch("BISECT_START");
1207         }
1208         if (!stat(git_path("REVERT_HEAD"), &st) &&
1209             !get_sha1("REVERT_HEAD", sha1)) {
1210                 state->revert_in_progress = 1;
1211                 hashcpy(state->revert_head_sha1, sha1);
1212         }
1213
1214         if (get_detached_from)
1215                 wt_status_get_detached_from(state);
1216 }
1217
1218 static void wt_status_print_state(struct wt_status *s,
1219                                   struct wt_status_state *state)
1220 {
1221         const char *state_color = color(WT_STATUS_HEADER, s);
1222         if (state->merge_in_progress)
1223                 show_merge_in_progress(s, state, state_color);
1224         else if (state->am_in_progress)
1225                 show_am_in_progress(s, state, state_color);
1226         else if (state->rebase_in_progress || state->rebase_interactive_in_progress)
1227                 show_rebase_in_progress(s, state, state_color);
1228         else if (state->cherry_pick_in_progress)
1229                 show_cherry_pick_in_progress(s, state, state_color);
1230         else if (state->revert_in_progress)
1231                 show_revert_in_progress(s, state, state_color);
1232         if (state->bisect_in_progress)
1233                 show_bisect_in_progress(s, state, state_color);
1234 }
1235
1236 void wt_status_print(struct wt_status *s)
1237 {
1238         const char *branch_color = color(WT_STATUS_ONBRANCH, s);
1239         const char *branch_status_color = color(WT_STATUS_HEADER, s);
1240         struct wt_status_state state;
1241
1242         memset(&state, 0, sizeof(state));
1243         wt_status_get_state(&state,
1244                             s->branch && !strcmp(s->branch, "HEAD"));
1245
1246         if (s->branch) {
1247                 const char *on_what = _("On branch ");
1248                 const char *branch_name = s->branch;
1249                 if (!prefixcmp(branch_name, "refs/heads/"))
1250                         branch_name += 11;
1251                 else if (!strcmp(branch_name, "HEAD")) {
1252                         branch_status_color = color(WT_STATUS_NOBRANCH, s);
1253                         if (state.rebase_in_progress || state.rebase_interactive_in_progress) {
1254                                 on_what = _("rebase in progress; onto ");
1255                                 branch_name = state.onto;
1256                         } else if (state.detached_from) {
1257                                 unsigned char sha1[20];
1258                                 branch_name = state.detached_from;
1259                                 if (!get_sha1("HEAD", sha1) &&
1260                                     !hashcmp(sha1, state.detached_sha1))
1261                                         on_what = _("HEAD detached at ");
1262                                 else
1263                                         on_what = _("HEAD detached from ");
1264                         } else {
1265                                 branch_name = "";
1266                                 on_what = _("Not currently on any branch.");
1267                         }
1268                 }
1269                 status_printf(s, color(WT_STATUS_HEADER, s), "");
1270                 status_printf_more(s, branch_status_color, "%s", on_what);
1271                 status_printf_more(s, branch_color, "%s\n", branch_name);
1272                 if (!s->is_initial)
1273                         wt_status_print_tracking(s);
1274         }
1275
1276         wt_status_print_state(s, &state);
1277         free(state.branch);
1278         free(state.onto);
1279         free(state.detached_from);
1280
1281         if (s->is_initial) {
1282                 status_printf_ln(s, color(WT_STATUS_HEADER, s), "");
1283                 status_printf_ln(s, color(WT_STATUS_HEADER, s), _("Initial commit"));
1284                 status_printf_ln(s, color(WT_STATUS_HEADER, s), "");
1285         }
1286
1287         wt_status_print_updated(s);
1288         wt_status_print_unmerged(s);
1289         wt_status_print_changed(s);
1290         if (s->submodule_summary &&
1291             (!s->ignore_submodule_arg ||
1292              strcmp(s->ignore_submodule_arg, "all"))) {
1293                 wt_status_print_submodule_summary(s, 0);  /* staged */
1294                 wt_status_print_submodule_summary(s, 1);  /* unstaged */
1295         }
1296         if (s->show_untracked_files) {
1297                 wt_status_print_other(s, &s->untracked, _("Untracked files"), "add");
1298                 if (s->show_ignored_files)
1299                         wt_status_print_other(s, &s->ignored, _("Ignored files"), "add -f");
1300                 if (advice_status_u_option && 2000 < s->untracked_in_ms) {
1301                         status_printf_ln(s, GIT_COLOR_NORMAL, "");
1302                         status_printf_ln(s, GIT_COLOR_NORMAL,
1303                                          _("It took %.2f seconds to enumerate untracked files. 'status -uno'\n"
1304                                            "may speed it up, but you have to be careful not to forget to add\n"
1305                                            "new files yourself (see 'git help status')."),
1306                                          s->untracked_in_ms / 1000.0);
1307                 }
1308         } else if (s->commitable)
1309                 status_printf_ln(s, GIT_COLOR_NORMAL, _("Untracked files not listed%s"),
1310                         s->hints
1311                         ? _(" (use -u option to show untracked files)") : "");
1312
1313         if (s->verbose)
1314                 wt_status_print_verbose(s);
1315         if (!s->commitable) {
1316                 if (s->amend)
1317                         status_printf_ln(s, GIT_COLOR_NORMAL, _("No changes"));
1318                 else if (s->nowarn)
1319                         ; /* nothing */
1320                 else if (s->workdir_dirty) {
1321                         if (s->hints)
1322                                 printf(_("no changes added to commit "
1323                                          "(use \"git add\" and/or \"git commit -a\")\n"));
1324                         else
1325                                 printf(_("no changes added to commit\n"));
1326                 } else if (s->untracked.nr) {
1327                         if (s->hints)
1328                                 printf(_("nothing added to commit but untracked files "
1329                                          "present (use \"git add\" to track)\n"));
1330                         else
1331                                 printf(_("nothing added to commit but untracked files present\n"));
1332                 } else if (s->is_initial) {
1333                         if (s->hints)
1334                                 printf(_("nothing to commit (create/copy files "
1335                                          "and use \"git add\" to track)\n"));
1336                         else
1337                                 printf(_("nothing to commit\n"));
1338                 } else if (!s->show_untracked_files) {
1339                         if (s->hints)
1340                                 printf(_("nothing to commit (use -u to show untracked files)\n"));
1341                         else
1342                                 printf(_("nothing to commit\n"));
1343                 } else
1344                         printf(_("nothing to commit, working directory clean\n"));
1345         }
1346 }
1347
1348 static void wt_shortstatus_unmerged(struct string_list_item *it,
1349                            struct wt_status *s)
1350 {
1351         struct wt_status_change_data *d = it->util;
1352         const char *how = "??";
1353
1354         switch (d->stagemask) {
1355         case 1: how = "DD"; break; /* both deleted */
1356         case 2: how = "AU"; break; /* added by us */
1357         case 3: how = "UD"; break; /* deleted by them */
1358         case 4: how = "UA"; break; /* added by them */
1359         case 5: how = "DU"; break; /* deleted by us */
1360         case 6: how = "AA"; break; /* both added */
1361         case 7: how = "UU"; break; /* both modified */
1362         }
1363         color_fprintf(s->fp, color(WT_STATUS_UNMERGED, s), "%s", how);
1364         if (s->null_termination) {
1365                 fprintf(stdout, " %s%c", it->string, 0);
1366         } else {
1367                 struct strbuf onebuf = STRBUF_INIT;
1368                 const char *one;
1369                 one = quote_path(it->string, s->prefix, &onebuf);
1370                 printf(" %s\n", one);
1371                 strbuf_release(&onebuf);
1372         }
1373 }
1374
1375 static void wt_shortstatus_status(struct string_list_item *it,
1376                          struct wt_status *s)
1377 {
1378         struct wt_status_change_data *d = it->util;
1379
1380         if (d->index_status)
1381                 color_fprintf(s->fp, color(WT_STATUS_UPDATED, s), "%c", d->index_status);
1382         else
1383                 putchar(' ');
1384         if (d->worktree_status)
1385                 color_fprintf(s->fp, color(WT_STATUS_CHANGED, s), "%c", d->worktree_status);
1386         else
1387                 putchar(' ');
1388         putchar(' ');
1389         if (s->null_termination) {
1390                 fprintf(stdout, "%s%c", it->string, 0);
1391                 if (d->head_path)
1392                         fprintf(stdout, "%s%c", d->head_path, 0);
1393         } else {
1394                 struct strbuf onebuf = STRBUF_INIT;
1395                 const char *one;
1396                 if (d->head_path) {
1397                         one = quote_path(d->head_path, s->prefix, &onebuf);
1398                         if (*one != '"' && strchr(one, ' ') != NULL) {
1399                                 putchar('"');
1400                                 strbuf_addch(&onebuf, '"');
1401                                 one = onebuf.buf;
1402                         }
1403                         printf("%s -> ", one);
1404                         strbuf_release(&onebuf);
1405                 }
1406                 one = quote_path(it->string, s->prefix, &onebuf);
1407                 if (*one != '"' && strchr(one, ' ') != NULL) {
1408                         putchar('"');
1409                         strbuf_addch(&onebuf, '"');
1410                         one = onebuf.buf;
1411                 }
1412                 printf("%s\n", one);
1413                 strbuf_release(&onebuf);
1414         }
1415 }
1416
1417 static void wt_shortstatus_other(struct string_list_item *it,
1418                                  struct wt_status *s, const char *sign)
1419 {
1420         if (s->null_termination) {
1421                 fprintf(stdout, "%s %s%c", sign, it->string, 0);
1422         } else {
1423                 struct strbuf onebuf = STRBUF_INIT;
1424                 const char *one;
1425                 one = quote_path(it->string, s->prefix, &onebuf);
1426                 color_fprintf(s->fp, color(WT_STATUS_UNTRACKED, s), "%s", sign);
1427                 printf(" %s\n", one);
1428                 strbuf_release(&onebuf);
1429         }
1430 }
1431
1432 static void wt_shortstatus_print_tracking(struct wt_status *s)
1433 {
1434         struct branch *branch;
1435         const char *header_color = color(WT_STATUS_HEADER, s);
1436         const char *branch_color_local = color(WT_STATUS_LOCAL_BRANCH, s);
1437         const char *branch_color_remote = color(WT_STATUS_REMOTE_BRANCH, s);
1438
1439         const char *base;
1440         const char *branch_name;
1441         int num_ours, num_theirs;
1442         int upstream_is_gone = 0;
1443
1444         color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "## ");
1445
1446         if (!s->branch)
1447                 return;
1448         branch_name = s->branch;
1449
1450         if (!prefixcmp(branch_name, "refs/heads/"))
1451                 branch_name += 11;
1452         else if (!strcmp(branch_name, "HEAD")) {
1453                 branch_name = _("HEAD (no branch)");
1454                 branch_color_local = color(WT_STATUS_NOBRANCH, s);
1455         }
1456
1457         branch = branch_get(s->branch + 11);
1458         if (s->is_initial)
1459                 color_fprintf(s->fp, header_color, _("Initial commit on "));
1460
1461         color_fprintf(s->fp, branch_color_local, "%s", branch_name);
1462
1463         switch (stat_tracking_info(branch, &num_ours, &num_theirs)) {
1464         case 0:
1465                 /* no base */
1466                 fputc(s->null_termination ? '\0' : '\n', s->fp);
1467                 return;
1468         case -1:
1469                 /* with "gone" base */
1470                 upstream_is_gone = 1;
1471                 break;
1472         default:
1473                 /* with base */
1474                 break;
1475         }
1476
1477         base = branch->merge[0]->dst;
1478         base = shorten_unambiguous_ref(base, 0);
1479         color_fprintf(s->fp, header_color, "...");
1480         color_fprintf(s->fp, branch_color_remote, "%s", base);
1481
1482         if (!upstream_is_gone && !num_ours && !num_theirs) {
1483                 fputc(s->null_termination ? '\0' : '\n', s->fp);
1484                 return;
1485         }
1486
1487         color_fprintf(s->fp, header_color, " [");
1488         if (upstream_is_gone) {
1489                 color_fprintf(s->fp, header_color, _("gone"));
1490         } else if (!num_ours) {
1491                 color_fprintf(s->fp, header_color, _("behind "));
1492                 color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
1493         } else if (!num_theirs) {
1494                 color_fprintf(s->fp, header_color, _("ahead "));
1495                 color_fprintf(s->fp, branch_color_local, "%d", num_ours);
1496         } else {
1497                 color_fprintf(s->fp, header_color, _("ahead "));
1498                 color_fprintf(s->fp, branch_color_local, "%d", num_ours);
1499                 color_fprintf(s->fp, header_color, _(", behind "));
1500                 color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
1501         }
1502
1503         color_fprintf(s->fp, header_color, "]");
1504         fputc(s->null_termination ? '\0' : '\n', s->fp);
1505 }
1506
1507 void wt_shortstatus_print(struct wt_status *s)
1508 {
1509         int i;
1510
1511         if (s->show_branch)
1512                 wt_shortstatus_print_tracking(s);
1513
1514         for (i = 0; i < s->change.nr; i++) {
1515                 struct wt_status_change_data *d;
1516                 struct string_list_item *it;
1517
1518                 it = &(s->change.items[i]);
1519                 d = it->util;
1520                 if (d->stagemask)
1521                         wt_shortstatus_unmerged(it, s);
1522                 else
1523                         wt_shortstatus_status(it, s);
1524         }
1525         for (i = 0; i < s->untracked.nr; i++) {
1526                 struct string_list_item *it;
1527
1528                 it = &(s->untracked.items[i]);
1529                 wt_shortstatus_other(it, s, "??");
1530         }
1531         for (i = 0; i < s->ignored.nr; i++) {
1532                 struct string_list_item *it;
1533
1534                 it = &(s->ignored.items[i]);
1535                 wt_shortstatus_other(it, s, "!!");
1536         }
1537 }
1538
1539 void wt_porcelain_print(struct wt_status *s)
1540 {
1541         s->use_color = 0;
1542         s->relative_paths = 0;
1543         s->prefix = NULL;
1544         wt_shortstatus_print(s);
1545 }