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[] = { NULL, NULL };
 525         const char *argv[8];
 526
 527         env[0] =        index;
 528         argv[0] =       "submodule";
 529         argv[1] =       "summary";
 530         argv[2] =       uncommitted ? "--files" : "--cached";
 531         argv[3] =       "--for-status";
 532         argv[4] =       "--summary-limit";
 533         argv[5] =       summary_limit;
 534         argv[6] =       uncommitted ? NULL : (s->amend ? "HEAD^" : "HEAD");
 535         argv[7] =       NULL;
 536
 537         sprintf(summary_limit, "%d", s->submodule_summary);
 538         snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", s->index_file);
 539
 540         memset(&sm_summary, 0, sizeof(sm_summary));
 541         sm_summary.argv = argv;
 542         sm_summary.env = env;
 543         sm_summary.git_cmd = 1;
 544         sm_summary.no_stdin = 1;
 545         fflush(s->fp);
 546         sm_summary.out = dup(fileno(s->fp));    /* run_command closes it */
 547         run_command(&sm_summary);
 548 }
 549
 550 static void wt_status_print_other(struct wt_status *s,
 551                                   struct string_list *l,
 552                                   const char *what,
 553                                   const char *how)
 554 {
 555         int i;
 556         struct strbuf buf = STRBUF_INIT;
 557
 558         if (!s->untracked.nr)
 559                 return;
 560
 561         wt_status_print_other_header(s, what, how);
 562
 563         for (i = 0; i < l->nr; i++) {
 564                 struct string_list_item *it;
 565                 it = &(l->items[i]);
 566                 color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "#\t");
 567                 color_fprintf_ln(s->fp, color(WT_STATUS_UNTRACKED, s), "%s",
 568                                  quote_path(it->string, strlen(it->string),
 569                                             &buf, s->prefix));
 570         }
 571         strbuf_release(&buf);
 572 }
 573
 574 static void wt_status_print_verbose(struct wt_status *s)
 575 {
 576         struct rev_info rev;
 577         struct setup_revision_opt opt;
 578
 579         init_revisions(&rev, NULL);
 580         DIFF_OPT_SET(&rev.diffopt, ALLOW_TEXTCONV);
 581
 582         memset(&opt, 0, sizeof(opt));
 583         opt.def = s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference;
 584         setup_revisions(0, NULL, &rev, &opt);
 585
 586         rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
 587         rev.diffopt.detect_rename = 1;
 588         rev.diffopt.file = s->fp;
 589         rev.diffopt.close_file = 0;
 590         /*
 591          * If we're not going to stdout, then we definitely don't
 592          * want color, since we are going to the commit message
 593          * file (and even the "auto" setting won't work, since it
 594          * will have checked isatty on stdout).
 595          */
 596         if (s->fp != stdout)
 597                 DIFF_OPT_CLR(&rev.diffopt, COLOR_DIFF);
 598         run_diff_index(&rev, 1);
 599 }
 600
 601 static void wt_status_print_tracking(struct wt_status *s)
 602 {
 603         struct strbuf sb = STRBUF_INIT;
 604         const char *cp, *ep;
 605         struct branch *branch;
 606
 607         assert(s->branch && !s->is_initial);
 608         if (prefixcmp(s->branch, "refs/heads/"))
 609                 return;
 610         branch = branch_get(s->branch + 11);
 611         if (!format_tracking_info(branch, &sb))
 612                 return;
 613
 614         for (cp = sb.buf; (ep = strchr(cp, '\n')) != NULL; cp = ep + 1)
 615                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s),
 616                                  "# %.*s", (int)(ep - cp), cp);
 617         color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "#");
 618 }
 619
 620 void wt_status_print(struct wt_status *s)
 621 {
 622         const char *branch_color = color(WT_STATUS_HEADER, s);
 623
 624         if (s->branch) {
 625                 const char *on_what = "On branch ";
 626                 const char *branch_name = s->branch;
 627                 if (!prefixcmp(branch_name, "refs/heads/"))
 628                         branch_name += 11;
 629                 else if (!strcmp(branch_name, "HEAD")) {
 630                         branch_name = "";
 631                         branch_color = color(WT_STATUS_NOBRANCH, s);
 632                         on_what = "Not currently on any branch.";
 633                 }
 634                 color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "# ");
 635                 color_fprintf_ln(s->fp, branch_color, "%s%s", on_what, branch_name);
 636                 if (!s->is_initial)
 637                         wt_status_print_tracking(s);
 638         }
 639
 640         if (s->is_initial) {
 641                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "#");
 642                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "# Initial commit");
 643                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "#");
 644         }
 645
 646         wt_status_print_updated(s);
 647         wt_status_print_unmerged(s);
 648         wt_status_print_changed(s);
 649         if (s->submodule_summary) {
 650                 wt_status_print_submodule_summary(s, 0);  /* staged */
 651                 wt_status_print_submodule_summary(s, 1);  /* unstaged */
 652         }
 653         if (s->show_untracked_files) {
 654                 wt_status_print_other(s, &s->untracked, "Untracked", "add");
 655                 if (s->show_ignored_files)
 656                         wt_status_print_other(s, &s->ignored, "Ignored", "add -f");
 657         } else if (s->commitable)
 658                 fprintf(s->fp, "# Untracked files not listed%s\n",
 659                         advice_status_hints
 660                         ? " (use -u option to show untracked files)" : "");
 661
 662         if (s->verbose)
 663                 wt_status_print_verbose(s);
 664         if (!s->commitable) {
 665                 if (s->amend)
 666                         fprintf(s->fp, "# No changes\n");
 667                 else if (s->nowarn)
 668                         ; /* nothing */
 669                 else if (s->workdir_dirty)
 670                         printf("no changes added to commit%s\n",
 671                                 advice_status_hints
 672                                 ? " (use \"git add\" and/or \"git commit -a\")" : "");
 673                 else if (s->untracked.nr)
 674                         printf("nothing added to commit but untracked files present%s\n",
 675                                 advice_status_hints
 676                                 ? " (use \"git add\" to track)" : "");
 677                 else if (s->is_initial)
 678                         printf("nothing to commit%s\n", advice_status_hints
 679                                 ? " (create/copy files and use \"git add\" to track)" : "");
 680                 else if (!s->show_untracked_files)
 681                         printf("nothing to commit%s\n", advice_status_hints
 682                                 ? " (use -u to show untracked files)" : "");
 683                 else
 684                         printf("nothing to commit%s\n", advice_status_hints
 685                                 ? " (working directory clean)" : "");
 686         }
 687 }
 688
 689 static void wt_shortstatus_unmerged(int null_termination, struct string_list_item *it,
 690                            struct wt_status *s)
 691 {
 692         struct wt_status_change_data *d = it->util;
 693         const char *how = "??";
 694
 695         switch (d->stagemask) {
 696         case 1: how = "DD"; break; /* both deleted */
 697         case 2: how = "AU"; break; /* added by us */
 698         case 3: how = "UD"; break; /* deleted by them */
 699         case 4: how = "UA"; break; /* added by them */
 700         case 5: how = "DU"; break; /* deleted by us */
 701         case 6: how = "AA"; break; /* both added */
 702         case 7: how = "UU"; break; /* both modified */
 703         }
 704         color_fprintf(s->fp, color(WT_STATUS_UNMERGED, s), "%s", how);
 705         if (null_termination) {
 706                 fprintf(stdout, " %s%c", it->string, 0);
 707         } else {
 708                 struct strbuf onebuf = STRBUF_INIT;
 709                 const char *one;
 710                 one = quote_path(it->string, -1, &onebuf, s->prefix);
 711                 printf(" %s\n", one);
 712                 strbuf_release(&onebuf);
 713         }
 714 }
 715
 716 static void wt_shortstatus_status(int null_termination, struct string_list_item *it,
 717                          struct wt_status *s)
 718 {
 719         struct wt_status_change_data *d = it->util;
 720
 721         if (d->index_status)
 722                 color_fprintf(s->fp, color(WT_STATUS_UPDATED, s), "%c", d->index_status);
 723         else
 724                 putchar(' ');
 725         if (d->worktree_status)
 726                 color_fprintf(s->fp, color(WT_STATUS_CHANGED, s), "%c", d->worktree_status);
 727         else
 728                 putchar(' ');
 729         putchar(' ');
 730         if (null_termination) {
 731                 fprintf(stdout, "%s%c", it->string, 0);
 732                 if (d->head_path)
 733                         fprintf(stdout, "%s%c", d->head_path, 0);
 734         } else {
 735                 struct strbuf onebuf = STRBUF_INIT;
 736                 const char *one;
 737                 if (d->head_path) {
 738                         one = quote_path(d->head_path, -1, &onebuf, s->prefix);
 739                         printf("%s -> ", one);
 740                         strbuf_release(&onebuf);
 741                 }
 742                 one = quote_path(it->string, -1, &onebuf, s->prefix);
 743                 printf("%s\n", one);
 744                 strbuf_release(&onebuf);
 745         }
 746 }
 747
 748 static void wt_shortstatus_other(int null_termination, struct string_list_item *it,
 749                                  struct wt_status *s, const char *sign)
 750 {
 751         if (null_termination) {
 752                 fprintf(stdout, "%s %s%c", sign, it->string, 0);
 753         } else {
 754                 struct strbuf onebuf = STRBUF_INIT;
 755                 const char *one;
 756                 one = quote_path(it->string, -1, &onebuf, s->prefix);
 757                 color_fprintf(s->fp, color(WT_STATUS_UNTRACKED, s), "%s", sign);
 758                 printf(" %s\n", one);
 759                 strbuf_release(&onebuf);
 760         }
 761 }
 762
 763 static void wt_shortstatus_print_tracking(struct wt_status *s)
 764 {
 765         struct branch *branch;
 766         const char *header_color = color(WT_STATUS_HEADER, s);
 767         const char *branch_color_local = color(WT_STATUS_LOCAL_BRANCH, s);
 768         const char *branch_color_remote = color(WT_STATUS_REMOTE_BRANCH, s);
 769
 770         const char *base;
 771         const char *branch_name;
 772         int num_ours, num_theirs;
 773
 774         color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "## ");
 775
 776         if (!s->branch)
 777                 return;
 778         branch_name = s->branch;
 779
 780         if (!prefixcmp(branch_name, "refs/heads/"))
 781                 branch_name += 11;
 782         else if (!strcmp(branch_name, "HEAD")) {
 783                 branch_name = "HEAD (no branch)";
 784                 branch_color_local = color(WT_STATUS_NOBRANCH, s);
 785         }
 786
 787         branch = branch_get(s->branch + 11);
 788         if (s->is_initial)
 789                 color_fprintf(s->fp, header_color, "Initial commit on ");
 790         if (!stat_tracking_info(branch, &num_ours, &num_theirs)) {
 791                 color_fprintf_ln(s->fp, branch_color_local,
 792                         "%s", branch_name);
 793                 return;
 794         }
 795
 796         base = branch->merge[0]->dst;
 797         base = shorten_unambiguous_ref(base, 0);
 798         color_fprintf(s->fp, branch_color_local, "%s", branch_name);
 799         color_fprintf(s->fp, header_color, "...");
 800         color_fprintf(s->fp, branch_color_remote, "%s", base);
 801
 802         color_fprintf(s->fp, header_color, " [");
 803         if (!num_ours) {
 804                 color_fprintf(s->fp, header_color, "behind ");
 805                 color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
 806         } else if (!num_theirs) {
 807                 color_fprintf(s->fp, header_color, "ahead ");
 808                 color_fprintf(s->fp, branch_color_local, "%d", num_ours);
 809         } else {
 810                 color_fprintf(s->fp, header_color, "ahead ");
 811                 color_fprintf(s->fp, branch_color_local, "%d", num_ours);
 812                 color_fprintf(s->fp, header_color, ", behind ");
 813                 color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
 814         }
 815
 816         color_fprintf_ln(s->fp, header_color, "]");
 817 }
 818
 819 void wt_shortstatus_print(struct wt_status *s, int null_termination, int show_branch)
 820 {
 821         int i;
 822
 823         if (show_branch)
 824                 wt_shortstatus_print_tracking(s);
 825
 826         for (i = 0; i < s->change.nr; i++) {
 827                 struct wt_status_change_data *d;
 828                 struct string_list_item *it;
 829
 830                 it = &(s->change.items[i]);
 831                 d = it->util;
 832                 if (d->stagemask)
 833                         wt_shortstatus_unmerged(null_termination, it, s);
 834                 else
 835                         wt_shortstatus_status(null_termination, it, s);
 836         }
 837         for (i = 0; i < s->untracked.nr; i++) {
 838                 struct string_list_item *it;
 839
 840                 it = &(s->untracked.items[i]);
 841                 wt_shortstatus_other(null_termination, it, s, "??");
 842         }
 843         for (i = 0; i < s->ignored.nr; i++) {
 844                 struct string_list_item *it;
 845
 846                 it = &(s->ignored.items[i]);
 847                 wt_shortstatus_other(null_termination, it, s, "!!");
 848         }
 849 }
 850
 851 void wt_porcelain_print(struct wt_status *s, int null_termination)
 852 {
 853         s->use_color = 0;
 854         s->relative_paths = 0;
 855         s->prefix = NULL;
 856         wt_shortstatus_print(s, null_termination, 0);
 857 }