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