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
  13 static char default_wt_status_colors[][COLOR_MAXLEN] = {
  14         GIT_COLOR_NORMAL, /* WT_STATUS_HEADER */
  15         GIT_COLOR_GREEN,  /* WT_STATUS_UPDATED */
  16         GIT_COLOR_RED,    /* WT_STATUS_CHANGED */
  17         GIT_COLOR_RED,    /* WT_STATUS_UNTRACKED */
  18         GIT_COLOR_RED,    /* WT_STATUS_NOBRANCH */
  19         GIT_COLOR_RED,    /* WT_STATUS_UNMERGED */
  20 };
  21
  22 static const char *color(int slot, struct wt_status *s)
  23 {
  24         return s->use_color > 0 ? s->color_palette[slot] : "";
  25 }
  26
  27 void wt_status_prepare(struct wt_status *s)
  28 {
  29         unsigned char sha1[20];
  30         const char *head;
  31
  32         memset(s, 0, sizeof(*s));
  33         memcpy(s->color_palette, default_wt_status_colors,
  34                sizeof(default_wt_status_colors));
  35         s->show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
  36         s->use_color = -1;
  37         s->relative_paths = 1;
  38         head = resolve_ref("HEAD", sha1, 0, NULL);
  39         s->branch = head ? xstrdup(head) : NULL;
  40         s->reference = "HEAD";
  41         s->fp = stdout;
  42         s->index_file = get_index_file();
  43         s->change.strdup_strings = 1;
  44         s->untracked.strdup_strings = 1;
  45         s->ignored.strdup_strings = 1;
  46 }
  47
  48 static void wt_status_print_unmerged_header(struct wt_status *s)
  49 {
  50         const char *c = color(WT_STATUS_HEADER, s);
  51
  52         color_fprintf_ln(s->fp, c, "# Unmerged paths:");
  53         if (!advice_status_hints)
  54                 return;
  55         if (s->in_merge)
  56                 ;
  57         else if (!s->is_initial)
  58                 color_fprintf_ln(s->fp, c, "#   (use \"git reset %s <file>...\" to unstage)", s->reference);
  59         else
  60                 color_fprintf_ln(s->fp, c, "#   (use \"git rm --cached <file>...\" to unstage)");
  61         color_fprintf_ln(s->fp, c, "#   (use \"git add/rm <file>...\" as appropriate to mark resolution)");
  62         color_fprintf_ln(s->fp, c, "#");
  63 }
  64
  65 static void wt_status_print_cached_header(struct wt_status *s)
  66 {
  67         const char *c = color(WT_STATUS_HEADER, s);
  68
  69         color_fprintf_ln(s->fp, c, "# Changes to be committed:");
  70         if (!advice_status_hints)
  71                 return;
  72         if (s->in_merge)
  73                 ; /* NEEDSWORK: use "git reset --unresolve"??? */
  74         else if (!s->is_initial)
  75                 color_fprintf_ln(s->fp, c, "#   (use \"git reset %s <file>...\" to unstage)", s->reference);
  76         else
  77                 color_fprintf_ln(s->fp, c, "#   (use \"git rm --cached <file>...\" to unstage)");
  78         color_fprintf_ln(s->fp, c, "#");
  79 }
  80
  81 static void wt_status_print_dirty_header(struct wt_status *s,
  82                                          int has_deleted,
  83                                          int has_dirty_submodules)
  84 {
  85         const char *c = color(WT_STATUS_HEADER, s);
  86
  87         color_fprintf_ln(s->fp, c, "# Changed but not updated:");
  88         if (!advice_status_hints)
  89                 return;
  90         if (!has_deleted)
  91                 color_fprintf_ln(s->fp, c, "#   (use \"git add <file>...\" to update what will be committed)");
  92         else
  93                 color_fprintf_ln(s->fp, c, "#   (use \"git add/rm <file>...\" to update what will be committed)");
  94         color_fprintf_ln(s->fp, c, "#   (use \"git checkout -- <file>...\" to discard changes in working directory)");
  95         if (has_dirty_submodules)
  96                 color_fprintf_ln(s->fp, c, "#   (commit or discard the untracked or modified content in submodules)");
  97         color_fprintf_ln(s->fp, c, "#");
  98 }
  99
 100 static void wt_status_print_other_header(struct wt_status *s,
 101                                          const char *what,
 102                                          const char *how)
 103 {
 104         const char *c = color(WT_STATUS_HEADER, s);
 105         color_fprintf_ln(s->fp, c, "# %s files:", what);
 106         if (!advice_status_hints)
 107                 return;
 108         color_fprintf_ln(s->fp, c, "#   (use \"git %s <file>...\" to include in what will be committed)", how);
 109         color_fprintf_ln(s->fp, c, "#");
 110 }
 111
 112 static void wt_status_print_trailer(struct wt_status *s)
 113 {
 114         color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "#");
 115 }
 116
 117 #define quote_path quote_path_relative
 118
 119 static void wt_status_print_unmerged_data(struct wt_status *s,
 120                                           struct string_list_item *it)
 121 {
 122         const char *c = color(WT_STATUS_UNMERGED, s);
 123         struct wt_status_change_data *d = it->util;
 124         struct strbuf onebuf = STRBUF_INIT;
 125         const char *one, *how = "bug";
 126
 127         one = quote_path(it->string, -1, &onebuf, s->prefix);
 128         color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "#\t");
 129         switch (d->stagemask) {
 130         case 1: how = "both deleted:"; break;
 131         case 2: how = "added by us:"; break;
 132         case 3: how = "deleted by them:"; break;
 133         case 4: how = "added by them:"; break;
 134         case 5: how = "deleted by us:"; break;
 135         case 6: how = "both added:"; break;
 136         case 7: how = "both modified:"; break;
 137         }
 138         color_fprintf(s->fp, c, "%-20s%s\n", how, one);
 139         strbuf_release(&onebuf);
 140 }
 141
 142 static void wt_status_print_change_data(struct wt_status *s,
 143                                         int change_type,
 144                                         struct string_list_item *it)
 145 {
 146         struct wt_status_change_data *d = it->util;
 147         const char *c = color(change_type, s);
 148         int status = status;
 149         char *one_name;
 150         char *two_name;
 151         const char *one, *two;
 152         struct strbuf onebuf = STRBUF_INIT, twobuf = STRBUF_INIT;
 153         struct strbuf extra = STRBUF_INIT;
 154
 155         one_name = two_name = it->string;
 156         switch (change_type) {
 157         case WT_STATUS_UPDATED:
 158                 status = d->index_status;
 159                 if (d->head_path)
 160                         one_name = d->head_path;
 161                 break;
 162         case WT_STATUS_CHANGED:
 163                 if (d->new_submodule_commits || d->dirty_submodule) {
 164                         strbuf_addstr(&extra, " (");
 165                         if (d->new_submodule_commits)
 166                                 strbuf_addf(&extra, "new commits, ");
 167                         if (d->dirty_submodule & DIRTY_SUBMODULE_MODIFIED)
 168                                 strbuf_addf(&extra, "modified content, ");
 169                         if (d->dirty_submodule & DIRTY_SUBMODULE_UNTRACKED)
 170                                 strbuf_addf(&extra, "untracked content, ");
 171                         strbuf_setlen(&extra, extra.len - 2);
 172                         strbuf_addch(&extra, ')');
 173                 }
 174                 status = d->worktree_status;
 175                 break;
 176         }
 177
 178         one = quote_path(one_name, -1, &onebuf, s->prefix);
 179         two = quote_path(two_name, -1, &twobuf, s->prefix);
 180
 181         color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "#\t");
 182         switch (status) {
 183         case DIFF_STATUS_ADDED:
 184                 color_fprintf(s->fp, c, "new file:   %s", one);
 185                 break;
 186         case DIFF_STATUS_COPIED:
 187                 color_fprintf(s->fp, c, "copied:     %s -> %s", one, two);
 188                 break;
 189         case DIFF_STATUS_DELETED:
 190                 color_fprintf(s->fp, c, "deleted:    %s", one);
 191                 break;
 192         case DIFF_STATUS_MODIFIED:
 193                 color_fprintf(s->fp, c, "modified:   %s", one);
 194                 break;
 195         case DIFF_STATUS_RENAMED:
 196                 color_fprintf(s->fp, c, "renamed:    %s -> %s", one, two);
 197                 break;
 198         case DIFF_STATUS_TYPE_CHANGED:
 199                 color_fprintf(s->fp, c, "typechange: %s", one);
 200                 break;
 201         case DIFF_STATUS_UNKNOWN:
 202                 color_fprintf(s->fp, c, "unknown:    %s", one);
 203                 break;
 204         case DIFF_STATUS_UNMERGED:
 205                 color_fprintf(s->fp, c, "unmerged:   %s", one);
 206                 break;
 207         default:
 208                 die("bug: unhandled diff status %c", status);
 209         }
 210         if (extra.len) {
 211                 color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "%s", extra.buf);
 212                 strbuf_release(&extra);
 213         }
 214         fprintf(s->fp, "\n");
 215         strbuf_release(&onebuf);
 216         strbuf_release(&twobuf);
 217 }
 218
 219 static void wt_status_collect_changed_cb(struct diff_queue_struct *q,
 220                                          struct diff_options *options,
 221                                          void *data)
 222 {
 223         struct wt_status *s = data;
 224         int i;
 225
 226         if (!q->nr)
 227                 return;
 228         s->workdir_dirty = 1;
 229         for (i = 0; i < q->nr; i++) {
 230                 struct diff_filepair *p;
 231                 struct string_list_item *it;
 232                 struct wt_status_change_data *d;
 233
 234                 p = q->queue[i];
 235                 it = string_list_insert(p->one->path, &s->change);
 236                 d = it->util;
 237                 if (!d) {
 238                         d = xcalloc(1, sizeof(*d));
 239                         it->util = d;
 240                 }
 241                 if (!d->worktree_status)
 242                         d->worktree_status = p->status;
 243                 d->dirty_submodule = p->two->dirty_submodule;
 244                 if (S_ISGITLINK(p->two->mode))
 245                         d->new_submodule_commits = !!hashcmp(p->one->sha1, p->two->sha1);
 246         }
 247 }
 248
 249 static int unmerged_mask(const char *path)
 250 {
 251         int pos, mask;
 252         struct cache_entry *ce;
 253
 254         pos = cache_name_pos(path, strlen(path));
 255         if (0 <= pos)
 256                 return 0;
 257
 258         mask = 0;
 259         pos = -pos-1;
 260         while (pos < active_nr) {
 261                 ce = active_cache[pos++];
 262                 if (strcmp(ce->name, path) || !ce_stage(ce))
 263                         break;
 264                 mask |= (1 << (ce_stage(ce) - 1));
 265         }
 266         return mask;
 267 }
 268
 269 static void wt_status_collect_updated_cb(struct diff_queue_struct *q,
 270                                          struct diff_options *options,
 271                                          void *data)
 272 {
 273         struct wt_status *s = data;
 274         int i;
 275
 276         for (i = 0; i < q->nr; i++) {
 277                 struct diff_filepair *p;
 278                 struct string_list_item *it;
 279                 struct wt_status_change_data *d;
 280
 281                 p = q->queue[i];
 282                 it = string_list_insert(p->two->path, &s->change);
 283                 d = it->util;
 284                 if (!d) {
 285                         d = xcalloc(1, sizeof(*d));
 286                         it->util = d;
 287                 }
 288                 if (!d->index_status)
 289                         d->index_status = p->status;
 290                 switch (p->status) {
 291                 case DIFF_STATUS_COPIED:
 292                 case DIFF_STATUS_RENAMED:
 293                         d->head_path = xstrdup(p->one->path);
 294                         break;
 295                 case DIFF_STATUS_UNMERGED:
 296                         d->stagemask = unmerged_mask(p->two->path);
 297                         break;
 298                 }
 299         }
 300 }
 301
 302 static void wt_status_collect_changes_worktree(struct wt_status *s)
 303 {
 304         struct rev_info rev;
 305
 306         init_revisions(&rev, NULL);
 307         setup_revisions(0, NULL, &rev, NULL);
 308         rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 309         DIFF_OPT_SET(&rev.diffopt, DIRTY_SUBMODULES);
 310         if (!s->show_untracked_files)
 311                 DIFF_OPT_SET(&rev.diffopt, IGNORE_UNTRACKED_IN_SUBMODULES);
 312         rev.diffopt.format_callback = wt_status_collect_changed_cb;
 313         rev.diffopt.format_callback_data = s;
 314         rev.prune_data = s->pathspec;
 315         run_diff_files(&rev, 0);
 316 }
 317
 318 static void wt_status_collect_changes_index(struct wt_status *s)
 319 {
 320         struct rev_info rev;
 321         struct setup_revision_opt opt;
 322
 323         init_revisions(&rev, NULL);
 324         memset(&opt, 0, sizeof(opt));
 325         opt.def = s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference;
 326         setup_revisions(0, NULL, &rev, &opt);
 327
 328         rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 329         rev.diffopt.format_callback = wt_status_collect_updated_cb;
 330         rev.diffopt.format_callback_data = s;
 331         rev.diffopt.detect_rename = 1;
 332         rev.diffopt.rename_limit = 200;
 333         rev.diffopt.break_opt = 0;
 334         rev.prune_data = s->pathspec;
 335         run_diff_index(&rev, 1);
 336 }
 337
 338 static void wt_status_collect_changes_initial(struct wt_status *s)
 339 {
 340         int i;
 341
 342         for (i = 0; i < active_nr; i++) {
 343                 struct string_list_item *it;
 344                 struct wt_status_change_data *d;
 345                 struct cache_entry *ce = active_cache[i];
 346
 347                 if (!ce_path_match(ce, s->pathspec))
 348                         continue;
 349                 it = string_list_insert(ce->name, &s->change);
 350                 d = it->util;
 351                 if (!d) {
 352                         d = xcalloc(1, sizeof(*d));
 353                         it->util = d;
 354                 }
 355                 if (ce_stage(ce)) {
 356                         d->index_status = DIFF_STATUS_UNMERGED;
 357                         d->stagemask |= (1 << (ce_stage(ce) - 1));
 358                 }
 359                 else
 360                         d->index_status = DIFF_STATUS_ADDED;
 361         }
 362 }
 363
 364 static void wt_status_collect_untracked(struct wt_status *s)
 365 {
 366         int i;
 367         struct dir_struct dir;
 368
 369         if (!s->show_untracked_files)
 370                 return;
 371         memset(&dir, 0, sizeof(dir));
 372         if (s->show_untracked_files != SHOW_ALL_UNTRACKED_FILES)
 373                 dir.flags |=
 374                         DIR_SHOW_OTHER_DIRECTORIES | DIR_HIDE_EMPTY_DIRECTORIES;
 375         setup_standard_excludes(&dir);
 376
 377         fill_directory(&dir, s->pathspec);
 378         for (i = 0; i < dir.nr; i++) {
 379                 struct dir_entry *ent = dir.entries[i];
 380                 if (!cache_name_is_other(ent->name, ent->len))
 381                         continue;
 382                 if (!match_pathspec(s->pathspec, ent->name, ent->len, 0, NULL))
 383                         continue;
 384                 string_list_insert(ent->name, &s->untracked);
 385                 free(ent);
 386         }
 387
 388         if (s->show_ignored_files) {
 389                 dir.nr = 0;
 390                 dir.flags = DIR_SHOW_IGNORED | DIR_SHOW_OTHER_DIRECTORIES;
 391                 fill_directory(&dir, s->pathspec);
 392                 for (i = 0; i < dir.nr; i++) {
 393                         struct dir_entry *ent = dir.entries[i];
 394                         if (!cache_name_is_other(ent->name, ent->len))
 395                                 continue;
 396                         if (!match_pathspec(s->pathspec, ent->name, ent->len, 0, NULL))
 397                                 continue;
 398                         string_list_insert(ent->name, &s->ignored);
 399                         free(ent);
 400                 }
 401         }
 402
 403         free(dir.entries);
 404 }
 405
 406 void wt_status_collect(struct wt_status *s)
 407 {
 408         wt_status_collect_changes_worktree(s);
 409
 410         if (s->is_initial)
 411                 wt_status_collect_changes_initial(s);
 412         else
 413                 wt_status_collect_changes_index(s);
 414         wt_status_collect_untracked(s);
 415 }
 416
 417 static void wt_status_print_unmerged(struct wt_status *s)
 418 {
 419         int shown_header = 0;
 420         int i;
 421
 422         for (i = 0; i < s->change.nr; i++) {
 423                 struct wt_status_change_data *d;
 424                 struct string_list_item *it;
 425                 it = &(s->change.items[i]);
 426                 d = it->util;
 427                 if (!d->stagemask)
 428                         continue;
 429                 if (!shown_header) {
 430                         wt_status_print_unmerged_header(s);
 431                         shown_header = 1;
 432                 }
 433                 wt_status_print_unmerged_data(s, it);
 434         }
 435         if (shown_header)
 436                 wt_status_print_trailer(s);
 437
 438 }
 439
 440 static void wt_status_print_updated(struct wt_status *s)
 441 {
 442         int shown_header = 0;
 443         int i;
 444
 445         for (i = 0; i < s->change.nr; i++) {
 446                 struct wt_status_change_data *d;
 447                 struct string_list_item *it;
 448                 it = &(s->change.items[i]);
 449                 d = it->util;
 450                 if (!d->index_status ||
 451                     d->index_status == DIFF_STATUS_UNMERGED)
 452                         continue;
 453                 if (!shown_header) {
 454                         wt_status_print_cached_header(s);
 455                         s->commitable = 1;
 456                         shown_header = 1;
 457                 }
 458                 wt_status_print_change_data(s, WT_STATUS_UPDATED, it);
 459         }
 460         if (shown_header)
 461                 wt_status_print_trailer(s);
 462 }
 463
 464 /*
 465  * -1 : has delete
 466  *  0 : no change
 467  *  1 : some change but no delete
 468  */
 469 static int wt_status_check_worktree_changes(struct wt_status *s,
 470                                              int *dirty_submodules)
 471 {
 472         int i;
 473         int changes = 0;
 474
 475         *dirty_submodules = 0;
 476
 477         for (i = 0; i < s->change.nr; i++) {
 478                 struct wt_status_change_data *d;
 479                 d = s->change.items[i].util;
 480                 if (!d->worktree_status ||
 481                     d->worktree_status == DIFF_STATUS_UNMERGED)
 482                         continue;
 483                 if (!changes)
 484                         changes = 1;
 485                 if (d->dirty_submodule)
 486                         *dirty_submodules = 1;
 487                 if (d->worktree_status == DIFF_STATUS_DELETED)
 488                         changes = -1;
 489         }
 490         return changes;
 491 }
 492
 493 static void wt_status_print_changed(struct wt_status *s)
 494 {
 495         int i, dirty_submodules;
 496         int worktree_changes = wt_status_check_worktree_changes(s, &dirty_submodules);
 497
 498         if (!worktree_changes)
 499                 return;
 500
 501         wt_status_print_dirty_header(s, worktree_changes < 0, dirty_submodules);
 502
 503         for (i = 0; i < s->change.nr; i++) {
 504                 struct wt_status_change_data *d;
 505                 struct string_list_item *it;
 506                 it = &(s->change.items[i]);
 507                 d = it->util;
 508                 if (!d->worktree_status ||
 509                     d->worktree_status == DIFF_STATUS_UNMERGED)
 510                         continue;
 511                 wt_status_print_change_data(s, WT_STATUS_CHANGED, it);
 512         }
 513         wt_status_print_trailer(s);
 514 }
 515
 516 static void wt_status_print_submodule_summary(struct wt_status *s, int uncommitted)
 517 {
 518         struct child_process sm_summary;
 519         char summary_limit[64];
 520         char index[PATH_MAX];
 521         const char *env[] = { NULL, NULL };
 522         const char *argv[8];
 523
 524         env[0] =        index;
 525         argv[0] =       "submodule";
 526         argv[1] =       "summary";
 527         argv[2] =       uncommitted ? "--files" : "--cached";
 528         argv[3] =       "--for-status";
 529         argv[4] =       "--summary-limit";
 530         argv[5] =       summary_limit;
 531         argv[6] =       uncommitted ? NULL : (s->amend ? "HEAD^" : "HEAD");
 532         argv[7] =       NULL;
 533
 534         sprintf(summary_limit, "%d", s->submodule_summary);
 535         snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", s->index_file);
 536
 537         memset(&sm_summary, 0, sizeof(sm_summary));
 538         sm_summary.argv = argv;
 539         sm_summary.env = env;
 540         sm_summary.git_cmd = 1;
 541         sm_summary.no_stdin = 1;
 542         fflush(s->fp);
 543         sm_summary.out = dup(fileno(s->fp));    /* run_command closes it */
 544         run_command(&sm_summary);
 545 }
 546
 547 static void wt_status_print_other(struct wt_status *s,
 548                                   struct string_list *l,
 549                                   const char *what,
 550                                   const char *how)
 551 {
 552         int i;
 553         struct strbuf buf = STRBUF_INIT;
 554
 555         if (!s->untracked.nr)
 556                 return;
 557
 558         wt_status_print_other_header(s, what, how);
 559
 560         for (i = 0; i < l->nr; i++) {
 561                 struct string_list_item *it;
 562                 it = &(l->items[i]);
 563                 color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "#\t");
 564                 color_fprintf_ln(s->fp, color(WT_STATUS_UNTRACKED, s), "%s",
 565                                  quote_path(it->string, strlen(it->string),
 566                                             &buf, s->prefix));
 567         }
 568         strbuf_release(&buf);
 569 }
 570
 571 static void wt_status_print_verbose(struct wt_status *s)
 572 {
 573         struct rev_info rev;
 574         struct setup_revision_opt opt;
 575
 576         init_revisions(&rev, NULL);
 577         DIFF_OPT_SET(&rev.diffopt, ALLOW_TEXTCONV);
 578
 579         memset(&opt, 0, sizeof(opt));
 580         opt.def = s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference;
 581         setup_revisions(0, NULL, &rev, &opt);
 582
 583         rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
 584         rev.diffopt.detect_rename = 1;
 585         rev.diffopt.file = s->fp;
 586         rev.diffopt.close_file = 0;
 587         /*
 588          * If we're not going to stdout, then we definitely don't
 589          * want color, since we are going to the commit message
 590          * file (and even the "auto" setting won't work, since it
 591          * will have checked isatty on stdout).
 592          */
 593         if (s->fp != stdout)
 594                 DIFF_OPT_CLR(&rev.diffopt, COLOR_DIFF);
 595         run_diff_index(&rev, 1);
 596 }
 597
 598 static void wt_status_print_tracking(struct wt_status *s)
 599 {
 600         struct strbuf sb = STRBUF_INIT;
 601         const char *cp, *ep;
 602         struct branch *branch;
 603
 604         assert(s->branch && !s->is_initial);
 605         if (prefixcmp(s->branch, "refs/heads/"))
 606                 return;
 607         branch = branch_get(s->branch + 11);
 608         if (!format_tracking_info(branch, &sb))
 609                 return;
 610
 611         for (cp = sb.buf; (ep = strchr(cp, '\n')) != NULL; cp = ep + 1)
 612                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s),
 613                                  "# %.*s", (int)(ep - cp), cp);
 614         color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "#");
 615 }
 616
 617 void wt_status_print(struct wt_status *s)
 618 {
 619         const char *branch_color = color(WT_STATUS_HEADER, s);
 620
 621         if (s->branch) {
 622                 const char *on_what = "On branch ";
 623                 const char *branch_name = s->branch;
 624                 if (!prefixcmp(branch_name, "refs/heads/"))
 625                         branch_name += 11;
 626                 else if (!strcmp(branch_name, "HEAD")) {
 627                         branch_name = "";
 628                         branch_color = color(WT_STATUS_NOBRANCH, s);
 629                         on_what = "Not currently on any branch.";
 630                 }
 631                 color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "# ");
 632                 color_fprintf_ln(s->fp, branch_color, "%s%s", on_what, branch_name);
 633                 if (!s->is_initial)
 634                         wt_status_print_tracking(s);
 635         }
 636
 637         if (s->is_initial) {
 638                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "#");
 639                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "# Initial commit");
 640                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "#");
 641         }
 642
 643         wt_status_print_updated(s);
 644         wt_status_print_unmerged(s);
 645         wt_status_print_changed(s);
 646         if (s->submodule_summary) {
 647                 wt_status_print_submodule_summary(s, 0);  /* staged */
 648                 wt_status_print_submodule_summary(s, 1);  /* unstaged */
 649         }
 650         if (s->show_untracked_files) {
 651                 wt_status_print_other(s, &s->untracked, "Untracked", "add");
 652                 if (s->show_ignored_files)
 653                         wt_status_print_other(s, &s->ignored, "Ignored", "add -f");
 654         } else if (s->commitable)
 655                 fprintf(s->fp, "# Untracked files not listed%s\n",
 656                         advice_status_hints
 657                         ? " (use -u option to show untracked files)" : "");
 658
 659         if (s->verbose)
 660                 wt_status_print_verbose(s);
 661         if (!s->commitable) {
 662                 if (s->amend)
 663                         fprintf(s->fp, "# No changes\n");
 664                 else if (s->nowarn)
 665                         ; /* nothing */
 666                 else if (s->workdir_dirty)
 667                         printf("no changes added to commit%s\n",
 668                                 advice_status_hints
 669                                 ? " (use \"git add\" and/or \"git commit -a\")" : "");
 670                 else if (s->untracked.nr)
 671                         printf("nothing added to commit but untracked files present%s\n",
 672                                 advice_status_hints
 673                                 ? " (use \"git add\" to track)" : "");
 674                 else if (s->is_initial)
 675                         printf("nothing to commit%s\n", advice_status_hints
 676                                 ? " (create/copy files and use \"git add\" to track)" : "");
 677                 else if (!s->show_untracked_files)
 678                         printf("nothing to commit%s\n", advice_status_hints
 679                                 ? " (use -u to show untracked files)" : "");
 680                 else
 681                         printf("nothing to commit%s\n", advice_status_hints
 682                                 ? " (working directory clean)" : "");
 683         }
 684 }
 685
 686 static void wt_shortstatus_unmerged(int null_termination, struct string_list_item *it,
 687                            struct wt_status *s)
 688 {
 689         struct wt_status_change_data *d = it->util;
 690         const char *how = "??";
 691
 692         switch (d->stagemask) {
 693         case 1: how = "DD"; break; /* both deleted */
 694         case 2: how = "AU"; break; /* added by us */
 695         case 3: how = "UD"; break; /* deleted by them */
 696         case 4: how = "UA"; break; /* added by them */
 697         case 5: how = "DU"; break; /* deleted by us */
 698         case 6: how = "AA"; break; /* both added */
 699         case 7: how = "UU"; break; /* both modified */
 700         }
 701         color_fprintf(s->fp, color(WT_STATUS_UNMERGED, s), "%s", how);
 702         if (null_termination) {
 703                 fprintf(stdout, " %s%c", it->string, 0);
 704         } else {
 705                 struct strbuf onebuf = STRBUF_INIT;
 706                 const char *one;
 707                 one = quote_path(it->string, -1, &onebuf, s->prefix);
 708                 printf(" %s\n", one);
 709                 strbuf_release(&onebuf);
 710         }
 711 }
 712
 713 static void wt_shortstatus_status(int null_termination, struct string_list_item *it,
 714                          struct wt_status *s)
 715 {
 716         struct wt_status_change_data *d = it->util;
 717
 718         if (d->index_status)
 719                 color_fprintf(s->fp, color(WT_STATUS_UPDATED, s), "%c", d->index_status);
 720         else
 721                 putchar(' ');
 722         if (d->worktree_status)
 723                 color_fprintf(s->fp, color(WT_STATUS_CHANGED, s), "%c", d->worktree_status);
 724         else
 725                 putchar(' ');
 726         putchar(' ');
 727         if (null_termination) {
 728                 fprintf(stdout, "%s%c", it->string, 0);
 729                 if (d->head_path)
 730                         fprintf(stdout, "%s%c", d->head_path, 0);
 731         } else {
 732                 struct strbuf onebuf = STRBUF_INIT;
 733                 const char *one;
 734                 if (d->head_path) {
 735                         one = quote_path(d->head_path, -1, &onebuf, s->prefix);
 736                         printf("%s -> ", one);
 737                         strbuf_release(&onebuf);
 738                 }
 739                 one = quote_path(it->string, -1, &onebuf, s->prefix);
 740                 printf("%s\n", one);
 741                 strbuf_release(&onebuf);
 742         }
 743 }
 744
 745 static void wt_shortstatus_other(int null_termination, struct string_list_item *it,
 746                                  struct wt_status *s, const char *sign)
 747 {
 748         if (null_termination) {
 749                 fprintf(stdout, "%s %s%c", sign, it->string, 0);
 750         } else {
 751                 struct strbuf onebuf = STRBUF_INIT;
 752                 const char *one;
 753                 one = quote_path(it->string, -1, &onebuf, s->prefix);
 754                 color_fprintf(s->fp, color(WT_STATUS_UNTRACKED, s), "%s", sign);
 755                 printf(" %s\n", one);
 756                 strbuf_release(&onebuf);
 757         }
 758 }
 759
 760 void wt_shortstatus_print(struct wt_status *s, int null_termination)
 761 {
 762         int i;
 763         for (i = 0; i < s->change.nr; i++) {
 764                 struct wt_status_change_data *d;
 765                 struct string_list_item *it;
 766
 767                 it = &(s->change.items[i]);
 768                 d = it->util;
 769                 if (d->stagemask)
 770                         wt_shortstatus_unmerged(null_termination, it, s);
 771                 else
 772                         wt_shortstatus_status(null_termination, it, s);
 773         }
 774         for (i = 0; i < s->untracked.nr; i++) {
 775                 struct string_list_item *it;
 776
 777                 it = &(s->untracked.items[i]);
 778                 wt_shortstatus_other(null_termination, it, s, "??");
 779         }
 780         for (i = 0; i < s->ignored.nr; i++) {
 781                 struct string_list_item *it;
 782
 783                 it = &(s->ignored.items[i]);
 784                 wt_shortstatus_other(null_termination, it, s, "!!");
 785         }
 786 }
 787
 788 void wt_porcelain_print(struct wt_status *s, int null_termination)
 789 {
 790         s->use_color = 0;
 791         s->relative_paths = 0;
 792         s->prefix = NULL;
 793         wt_shortstatus_print(s, null_termination);
 794 }