wt-status.c

   1 #include "cache.h"
   2 #include "wt-status.h"
   3 #include "object.h"
   4 #include "dir.h"
   5 #include "commit.h"
   6 #include "diff.h"
   7 #include "revision.h"
   8 #include "diffcore.h"
   9 #include "quote.h"
  10 #include "run-command.h"
  11 #include "remote.h"
  12 #include "refs.h"
  13 #include "submodule.h"
  14
  15 static char default_wt_status_colors[][COLOR_MAXLEN] = {
  16         GIT_COLOR_NORMAL, /* WT_STATUS_HEADER */
  17         GIT_COLOR_GREEN,  /* WT_STATUS_UPDATED */
  18         GIT_COLOR_RED,    /* WT_STATUS_CHANGED */
  19         GIT_COLOR_RED,    /* WT_STATUS_UNTRACKED */
  20         GIT_COLOR_RED,    /* WT_STATUS_NOBRANCH */
  21         GIT_COLOR_RED,    /* WT_STATUS_UNMERGED */
  22         GIT_COLOR_GREEN,  /* WT_STATUS_LOCAL_BRANCH */
  23         GIT_COLOR_RED,    /* WT_STATUS_REMOTE_BRANCH */
  24 };
  25
  26 static const char *color(int slot, struct wt_status *s)
  27 {
  28         return s->use_color > 0 ? s->color_palette[slot] : "";
  29 }
  30
  31 void wt_status_prepare(struct wt_status *s)
  32 {
  33         unsigned char sha1[20];
  34         const char *head;
  35
  36         memset(s, 0, sizeof(*s));
  37         memcpy(s->color_palette, default_wt_status_colors,
  38                sizeof(default_wt_status_colors));
  39         s->show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
  40         s->use_color = -1;
  41         s->relative_paths = 1;
  42         head = resolve_ref("HEAD", sha1, 0, NULL);
  43         s->branch = head ? xstrdup(head) : NULL;
  44         s->reference = "HEAD";
  45         s->fp = stdout;
  46         s->index_file = get_index_file();
  47         s->change.strdup_strings = 1;
  48         s->untracked.strdup_strings = 1;
  49         s->ignored.strdup_strings = 1;
  50 }
  51
  52 static void wt_status_print_unmerged_header(struct wt_status *s)
  53 {
  54         const char *c = color(WT_STATUS_HEADER, s);
  55
  56         color_fprintf_ln(s->fp, c, "# Unmerged paths:");
  57         if (!advice_status_hints)
  58                 return;
  59         if (s->in_merge)
  60                 ;
  61         else if (!s->is_initial)
  62                 color_fprintf_ln(s->fp, c, "#   (use \"git reset %s <file>...\" to unstage)", s->reference);
  63         else
  64                 color_fprintf_ln(s->fp, c, "#   (use \"git rm --cached <file>...\" to unstage)");
  65         color_fprintf_ln(s->fp, c, "#   (use \"git add/rm <file>...\" as appropriate to mark resolution)");
  66         color_fprintf_ln(s->fp, c, "#");
  67 }
  68
  69 static void wt_status_print_cached_header(struct wt_status *s)
  70 {
  71         const char *c = color(WT_STATUS_HEADER, s);
  72
  73         color_fprintf_ln(s->fp, c, "# Changes to be committed:");
  74         if (!advice_status_hints)
  75                 return;
  76         if (s->in_merge)
  77                 ; /* NEEDSWORK: use "git reset --unresolve"??? */
  78         else if (!s->is_initial)
  79                 color_fprintf_ln(s->fp, c, "#   (use \"git reset %s <file>...\" to unstage)", s->reference);
  80         else
  81                 color_fprintf_ln(s->fp, c, "#   (use \"git rm --cached <file>...\" to unstage)");
  82         color_fprintf_ln(s->fp, c, "#");
  83 }
  84
  85 static void wt_status_print_dirty_header(struct wt_status *s,
  86                                          int has_deleted,
  87                                          int has_dirty_submodules)
  88 {
  89         const char *c = color(WT_STATUS_HEADER, s);
  90
  91         color_fprintf_ln(s->fp, c, "# Changed but not updated:");
  92         if (!advice_status_hints)
  93                 return;
  94         if (!has_deleted)
  95                 color_fprintf_ln(s->fp, c, "#   (use \"git add <file>...\" to update what will be committed)");
  96         else
  97                 color_fprintf_ln(s->fp, c, "#   (use \"git add/rm <file>...\" to update what will be committed)");
  98         color_fprintf_ln(s->fp, c, "#   (use \"git checkout -- <file>...\" to discard changes in working directory)");
  99         if (has_dirty_submodules)
 100                 color_fprintf_ln(s->fp, c, "#   (commit or discard the untracked or modified content in submodules)");
 101         color_fprintf_ln(s->fp, c, "#");
 102 }
 103
 104 static void wt_status_print_other_header(struct wt_status *s,
 105                                          const char *what,
 106                                          const char *how)
 107 {
 108         const char *c = color(WT_STATUS_HEADER, s);
 109         color_fprintf_ln(s->fp, c, "# %s files:", what);
 110         if (!advice_status_hints)
 111                 return;
 112         color_fprintf_ln(s->fp, c, "#   (use \"git %s <file>...\" to include in what will be committed)", how);
 113         color_fprintf_ln(s->fp, c, "#");
 114 }
 115
 116 static void wt_status_print_trailer(struct wt_status *s)
 117 {
 118         color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "#");
 119 }
 120
 121 #define quote_path quote_path_relative
 122
 123 static void wt_status_print_unmerged_data(struct wt_status *s,
 124                                           struct string_list_item *it)
 125 {
 126         const char *c = color(WT_STATUS_UNMERGED, s);
 127         struct wt_status_change_data *d = it->util;
 128         struct strbuf onebuf = STRBUF_INIT;
 129         const char *one, *how = "bug";
 130
 131         one = quote_path(it->string, -1, &onebuf, s->prefix);
 132         color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "#\t");
 133         switch (d->stagemask) {
 134         case 1: how = "both deleted:"; break;
 135         case 2: how = "added by us:"; break;
 136         case 3: how = "deleted by them:"; break;
 137         case 4: how = "added by them:"; break;
 138         case 5: how = "deleted by us:"; break;
 139         case 6: how = "both added:"; break;
 140         case 7: how = "both modified:"; break;
 141         }
 142         color_fprintf(s->fp, c, "%-20s%s\n", how, one);
 143         strbuf_release(&onebuf);
 144 }
 145
 146 static void wt_status_print_change_data(struct wt_status *s,
 147                                         int change_type,
 148                                         struct string_list_item *it)
 149 {
 150         struct wt_status_change_data *d = it->util;
 151         const char *c = color(change_type, s);
 152         int status = status;
 153         char *one_name;
 154         char *two_name;
 155         const char *one, *two;
 156         struct strbuf onebuf = STRBUF_INIT, twobuf = STRBUF_INIT;
 157         struct strbuf extra = STRBUF_INIT;
 158
 159         one_name = two_name = it->string;
 160         switch (change_type) {
 161         case WT_STATUS_UPDATED:
 162                 status = d->index_status;
 163                 if (d->head_path)
 164                         one_name = d->head_path;
 165                 break;
 166         case WT_STATUS_CHANGED:
 167                 if (d->new_submodule_commits || d->dirty_submodule) {
 168                         strbuf_addstr(&extra, " (");
 169                         if (d->new_submodule_commits)
 170                                 strbuf_addf(&extra, "new commits, ");
 171                         if (d->dirty_submodule & DIRTY_SUBMODULE_MODIFIED)
 172                                 strbuf_addf(&extra, "modified content, ");
 173                         if (d->dirty_submodule & DIRTY_SUBMODULE_UNTRACKED)
 174                                 strbuf_addf(&extra, "untracked content, ");
 175                         strbuf_setlen(&extra, extra.len - 2);
 176                         strbuf_addch(&extra, ')');
 177                 }
 178                 status = d->worktree_status;
 179                 break;
 180         }
 181
 182         one = quote_path(one_name, -1, &onebuf, s->prefix);
 183         two = quote_path(two_name, -1, &twobuf, s->prefix);
 184
 185         color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "#\t");
 186         switch (status) {
 187         case DIFF_STATUS_ADDED:
 188                 color_fprintf(s->fp, c, "new file:   %s", one);
 189                 break;
 190         case DIFF_STATUS_COPIED:
 191                 color_fprintf(s->fp, c, "copied:     %s -> %s", one, two);
 192                 break;
 193         case DIFF_STATUS_DELETED:
 194                 color_fprintf(s->fp, c, "deleted:    %s", one);
 195                 break;
 196         case DIFF_STATUS_MODIFIED:
 197                 color_fprintf(s->fp, c, "modified:   %s", one);
 198                 break;
 199         case DIFF_STATUS_RENAMED:
 200                 color_fprintf(s->fp, c, "renamed:    %s -> %s", one, two);
 201                 break;
 202         case DIFF_STATUS_TYPE_CHANGED:
 203                 color_fprintf(s->fp, c, "typechange: %s", one);
 204                 break;
 205         case DIFF_STATUS_UNKNOWN:
 206                 color_fprintf(s->fp, c, "unknown:    %s", one);
 207                 break;
 208         case DIFF_STATUS_UNMERGED:
 209                 color_fprintf(s->fp, c, "unmerged:   %s", one);
 210                 break;
 211         default:
 212                 die("bug: unhandled diff status %c", status);
 213         }
 214         if (extra.len) {
 215                 color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "%s", extra.buf);
 216                 strbuf_release(&extra);
 217         }
 218         fprintf(s->fp, "\n");
 219         strbuf_release(&onebuf);
 220         strbuf_release(&twobuf);
 221 }
 222
 223 static void wt_status_collect_changed_cb(struct diff_queue_struct *q,
 224                                          struct diff_options *options,
 225                                          void *data)
 226 {
 227         struct wt_status *s = data;
 228         int i;
 229
 230         if (!q->nr)
 231                 return;
 232         s->workdir_dirty = 1;
 233         for (i = 0; i < q->nr; i++) {
 234                 struct diff_filepair *p;
 235                 struct string_list_item *it;
 236                 struct wt_status_change_data *d;
 237
 238                 p = q->queue[i];
 239                 it = string_list_insert(&s->change, p->one->path);
 240                 d = it->util;
 241                 if (!d) {
 242                         d = xcalloc(1, sizeof(*d));
 243                         it->util = d;
 244                 }
 245                 if (!d->worktree_status)
 246                         d->worktree_status = p->status;
 247                 d->dirty_submodule = p->two->dirty_submodule;
 248                 if (S_ISGITLINK(p->two->mode))
 249                         d->new_submodule_commits = !!hashcmp(p->one->sha1, p->two->sha1);
 250         }
 251 }
 252
 253 static int unmerged_mask(const char *path)
 254 {
 255         int pos, mask;
 256         struct cache_entry *ce;
 257
 258         pos = cache_name_pos(path, strlen(path));
 259         if (0 <= pos)
 260                 return 0;
 261
 262         mask = 0;
 263         pos = -pos-1;
 264         while (pos < active_nr) {
 265                 ce = active_cache[pos++];
 266                 if (strcmp(ce->name, path) || !ce_stage(ce))
 267                         break;
 268                 mask |= (1 << (ce_stage(ce) - 1));
 269         }
 270         return mask;
 271 }
 272
 273 static void wt_status_collect_updated_cb(struct diff_queue_struct *q,
 274                                          struct diff_options *options,
 275                                          void *data)
 276 {
 277         struct wt_status *s = data;
 278         int i;
 279
 280         for (i = 0; i < q->nr; i++) {
 281                 struct diff_filepair *p;
 282                 struct string_list_item *it;
 283                 struct wt_status_change_data *d;
 284
 285                 p = q->queue[i];
 286                 it = string_list_insert(&s->change, p->two->path);
 287                 d = it->util;
 288                 if (!d) {
 289                         d = xcalloc(1, sizeof(*d));
 290                         it->util = d;
 291                 }
 292                 if (!d->index_status)
 293                         d->index_status = p->status;
 294                 switch (p->status) {
 295                 case DIFF_STATUS_COPIED:
 296                 case DIFF_STATUS_RENAMED:
 297                         d->head_path = xstrdup(p->one->path);
 298                         break;
 299                 case DIFF_STATUS_UNMERGED:
 300                         d->stagemask = unmerged_mask(p->two->path);
 301                         break;
 302                 }
 303         }
 304 }
 305
 306 static void wt_status_collect_changes_worktree(struct wt_status *s)
 307 {
 308         struct rev_info rev;
 309
 310         init_revisions(&rev, NULL);
 311         setup_revisions(0, NULL, &rev, NULL);
 312         rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 313         DIFF_OPT_SET(&rev.diffopt, DIRTY_SUBMODULES);
 314         if (!s->show_untracked_files)
 315                 DIFF_OPT_SET(&rev.diffopt, IGNORE_UNTRACKED_IN_SUBMODULES);
 316         if (s->ignore_submodule_arg) {
 317                 DIFF_OPT_SET(&rev.diffopt, OVERRIDE_SUBMODULE_CONFIG);
 318                 handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
 319     }
 320         rev.diffopt.format_callback = wt_status_collect_changed_cb;
 321         rev.diffopt.format_callback_data = s;
 322         rev.prune_data = s->pathspec;
 323         run_diff_files(&rev, 0);
 324 }
 325
 326 static void wt_status_collect_changes_index(struct wt_status *s)
 327 {
 328         struct rev_info rev;
 329         struct setup_revision_opt opt;
 330
 331         init_revisions(&rev, NULL);
 332         memset(&opt, 0, sizeof(opt));
 333         opt.def = s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference;
 334         setup_revisions(0, NULL, &rev, &opt);
 335
 336         if (s->ignore_submodule_arg) {
 337                 DIFF_OPT_SET(&rev.diffopt, OVERRIDE_SUBMODULE_CONFIG);
 338                 handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
 339         }
 340
 341         rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 342         rev.diffopt.format_callback = wt_status_collect_updated_cb;
 343         rev.diffopt.format_callback_data = s;
 344         rev.diffopt.detect_rename = 1;
 345         rev.diffopt.rename_limit = 200;
 346         rev.diffopt.break_opt = 0;
 347         rev.prune_data = s->pathspec;
 348         run_diff_index(&rev, 1);
 349 }
 350
 351 static void wt_status_collect_changes_initial(struct wt_status *s)
 352 {
 353         int i;
 354
 355         for (i = 0; i < active_nr; i++) {
 356                 struct string_list_item *it;
 357                 struct wt_status_change_data *d;
 358                 struct cache_entry *ce = active_cache[i];
 359
 360                 if (!ce_path_match(ce, s->pathspec))
 361                         continue;
 362                 it = string_list_insert(&s->change, ce->name);
 363                 d = it->util;
 364                 if (!d) {
 365                         d = xcalloc(1, sizeof(*d));
 366                         it->util = d;
 367                 }
 368                 if (ce_stage(ce)) {
 369                         d->index_status = DIFF_STATUS_UNMERGED;
 370                         d->stagemask |= (1 << (ce_stage(ce) - 1));
 371                 }
 372                 else
 373                         d->index_status = DIFF_STATUS_ADDED;
 374         }
 375 }
 376
 377 static void wt_status_collect_untracked(struct wt_status *s)
 378 {
 379         int i;
 380         struct dir_struct dir;
 381
 382         if (!s->show_untracked_files)
 383                 return;
 384         memset(&dir, 0, sizeof(dir));
 385         if (s->show_untracked_files != SHOW_ALL_UNTRACKED_FILES)
 386                 dir.flags |=
 387                         DIR_SHOW_OTHER_DIRECTORIES | DIR_HIDE_EMPTY_DIRECTORIES;
 388         setup_standard_excludes(&dir);
 389
 390         fill_directory(&dir, s->pathspec);
 391         for (i = 0; i < dir.nr; i++) {
 392                 struct dir_entry *ent = dir.entries[i];
 393                 if (!cache_name_is_other(ent->name, ent->len))
 394                         continue;
 395                 if (!match_pathspec(s->pathspec, ent->name, ent->len, 0, NULL))
 396                         continue;
 397                 string_list_insert(&s->untracked, ent->name);
 398                 free(ent);
 399         }
 400
 401         if (s->show_ignored_files) {
 402                 dir.nr = 0;
 403                 dir.flags = DIR_SHOW_IGNORED | DIR_SHOW_OTHER_DIRECTORIES;
 404                 fill_directory(&dir, s->pathspec);
 405                 for (i = 0; i < dir.nr; i++) {
 406                         struct dir_entry *ent = dir.entries[i];
 407                         if (!cache_name_is_other(ent->name, ent->len))
 408                                 continue;
 409                         if (!match_pathspec(s->pathspec, ent->name, ent->len, 0, NULL))
 410                                 continue;
 411                         string_list_insert(&s->ignored, ent->name);
 412                         free(ent);
 413                 }
 414         }
 415
 416         free(dir.entries);
 417 }
 418
 419 void wt_status_collect(struct wt_status *s)
 420 {
 421         wt_status_collect_changes_worktree(s);
 422
 423         if (s->is_initial)
 424                 wt_status_collect_changes_initial(s);
 425         else
 426                 wt_status_collect_changes_index(s);
 427         wt_status_collect_untracked(s);
 428 }
 429
 430 static void wt_status_print_unmerged(struct wt_status *s)
 431 {
 432         int shown_header = 0;
 433         int i;
 434
 435         for (i = 0; i < s->change.nr; i++) {
 436                 struct wt_status_change_data *d;
 437                 struct string_list_item *it;
 438                 it = &(s->change.items[i]);
 439                 d = it->util;
 440                 if (!d->stagemask)
 441                         continue;
 442                 if (!shown_header) {
 443                         wt_status_print_unmerged_header(s);
 444                         shown_header = 1;
 445                 }
 446                 wt_status_print_unmerged_data(s, it);
 447         }
 448         if (shown_header)
 449                 wt_status_print_trailer(s);
 450
 451 }
 452
 453 static void wt_status_print_updated(struct wt_status *s)
 454 {
 455         int shown_header = 0;
 456         int i;
 457
 458         for (i = 0; i < s->change.nr; i++) {
 459                 struct wt_status_change_data *d;
 460                 struct string_list_item *it;
 461                 it = &(s->change.items[i]);
 462                 d = it->util;
 463                 if (!d->index_status ||
 464                     d->index_status == DIFF_STATUS_UNMERGED)
 465                         continue;
 466                 if (!shown_header) {
 467                         wt_status_print_cached_header(s);
 468                         s->commitable = 1;
 469                         shown_header = 1;
 470                 }
 471                 wt_status_print_change_data(s, WT_STATUS_UPDATED, it);
 472         }
 473         if (shown_header)
 474                 wt_status_print_trailer(s);
 475 }
 476
 477 /*
 478  * -1 : has delete
 479  *  0 : no change
 480  *  1 : some change but no delete
 481  */
 482 static int wt_status_check_worktree_changes(struct wt_status *s,
 483                                              int *dirty_submodules)
 484 {
 485         int i;
 486         int changes = 0;
 487
 488         *dirty_submodules = 0;
 489
 490         for (i = 0; i < s->change.nr; i++) {
 491                 struct wt_status_change_data *d;
 492                 d = s->change.items[i].util;
 493                 if (!d->worktree_status ||
 494                     d->worktree_status == DIFF_STATUS_UNMERGED)
 495                         continue;
 496                 if (!changes)
 497                         changes = 1;
 498                 if (d->dirty_submodule)
 499                         *dirty_submodules = 1;
 500                 if (d->worktree_status == DIFF_STATUS_DELETED)
 501                         changes = -1;
 502         }
 503         return changes;
 504 }
 505
 506 static void wt_status_print_changed(struct wt_status *s)
 507 {
 508         int i, dirty_submodules;
 509         int worktree_changes = wt_status_check_worktree_changes(s, &dirty_submodules);
 510
 511         if (!worktree_changes)
 512                 return;
 513
 514         wt_status_print_dirty_header(s, worktree_changes < 0, dirty_submodules);
 515
 516         for (i = 0; i < s->change.nr; i++) {
 517                 struct wt_status_change_data *d;
 518                 struct string_list_item *it;
 519                 it = &(s->change.items[i]);
 520                 d = it->util;
 521                 if (!d->worktree_status ||
 522                     d->worktree_status == DIFF_STATUS_UNMERGED)
 523                         continue;
 524                 wt_status_print_change_data(s, WT_STATUS_CHANGED, it);
 525         }
 526         wt_status_print_trailer(s);
 527 }
 528
 529 static void wt_status_print_submodule_summary(struct wt_status *s, int uncommitted)
 530 {
 531         struct child_process sm_summary;
 532         char summary_limit[64];
 533         char index[PATH_MAX];
 534         const char *env[] = { NULL, NULL };
 535         const char *argv[8];
 536
 537         env[0] =        index;
 538         argv[0] =       "submodule";
 539         argv[1] =       "summary";
 540         argv[2] =       uncommitted ? "--files" : "--cached";
 541         argv[3] =       "--for-status";
 542         argv[4] =       "--summary-limit";
 543         argv[5] =       summary_limit;
 544         argv[6] =       uncommitted ? NULL : (s->amend ? "HEAD^" : "HEAD");
 545         argv[7] =       NULL;
 546
 547         sprintf(summary_limit, "%d", s->submodule_summary);
 548         snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", s->index_file);
 549
 550         memset(&sm_summary, 0, sizeof(sm_summary));
 551         sm_summary.argv = argv;
 552         sm_summary.env = env;
 553         sm_summary.git_cmd = 1;
 554         sm_summary.no_stdin = 1;
 555         fflush(s->fp);
 556         sm_summary.out = dup(fileno(s->fp));    /* run_command closes it */
 557         run_command(&sm_summary);
 558 }
 559
 560 static void wt_status_print_other(struct wt_status *s,
 561                                   struct string_list *l,
 562                                   const char *what,
 563                                   const char *how)
 564 {
 565         int i;
 566         struct strbuf buf = STRBUF_INIT;
 567
 568         if (!s->untracked.nr)
 569                 return;
 570
 571         wt_status_print_other_header(s, what, how);
 572
 573         for (i = 0; i < l->nr; i++) {
 574                 struct string_list_item *it;
 575                 it = &(l->items[i]);
 576                 color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "#\t");
 577                 color_fprintf_ln(s->fp, color(WT_STATUS_UNTRACKED, s), "%s",
 578                                  quote_path(it->string, strlen(it->string),
 579                                             &buf, s->prefix));
 580         }
 581         strbuf_release(&buf);
 582 }
 583
 584 static void wt_status_print_verbose(struct wt_status *s)
 585 {
 586         struct rev_info rev;
 587         struct setup_revision_opt opt;
 588
 589         init_revisions(&rev, NULL);
 590         DIFF_OPT_SET(&rev.diffopt, ALLOW_TEXTCONV);
 591
 592         memset(&opt, 0, sizeof(opt));
 593         opt.def = s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference;
 594         setup_revisions(0, NULL, &rev, &opt);
 595
 596         rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
 597         rev.diffopt.detect_rename = 1;
 598         rev.diffopt.file = s->fp;
 599         rev.diffopt.close_file = 0;
 600         /*
 601          * If we're not going to stdout, then we definitely don't
 602          * want color, since we are going to the commit message
 603          * file (and even the "auto" setting won't work, since it
 604          * will have checked isatty on stdout).
 605          */
 606         if (s->fp != stdout)
 607                 DIFF_OPT_CLR(&rev.diffopt, COLOR_DIFF);
 608         run_diff_index(&rev, 1);
 609 }
 610
 611 static void wt_status_print_tracking(struct wt_status *s)
 612 {
 613         struct strbuf sb = STRBUF_INIT;
 614         const char *cp, *ep;
 615         struct branch *branch;
 616
 617         assert(s->branch && !s->is_initial);
 618         if (prefixcmp(s->branch, "refs/heads/"))
 619                 return;
 620         branch = branch_get(s->branch + 11);
 621         if (!format_tracking_info(branch, &sb))
 622                 return;
 623
 624         for (cp = sb.buf; (ep = strchr(cp, '\n')) != NULL; cp = ep + 1)
 625                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s),
 626                                  "# %.*s", (int)(ep - cp), cp);
 627         color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "#");
 628 }
 629
 630 void wt_status_print(struct wt_status *s)
 631 {
 632         const char *branch_color = color(WT_STATUS_HEADER, s);
 633
 634         if (s->branch) {
 635                 const char *on_what = "On branch ";
 636                 const char *branch_name = s->branch;
 637                 if (!prefixcmp(branch_name, "refs/heads/"))
 638                         branch_name += 11;
 639                 else if (!strcmp(branch_name, "HEAD")) {
 640                         branch_name = "";
 641                         branch_color = color(WT_STATUS_NOBRANCH, s);
 642                         on_what = "Not currently on any branch.";
 643                 }
 644                 color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "# ");
 645                 color_fprintf_ln(s->fp, branch_color, "%s%s", on_what, branch_name);
 646                 if (!s->is_initial)
 647                         wt_status_print_tracking(s);
 648         }
 649
 650         if (s->is_initial) {
 651                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "#");
 652                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "# Initial commit");
 653                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "#");
 654         }
 655
 656         wt_status_print_updated(s);
 657         wt_status_print_unmerged(s);
 658         wt_status_print_changed(s);
 659         if (s->submodule_summary &&
 660             (!s->ignore_submodule_arg ||
 661              strcmp(s->ignore_submodule_arg, "all"))) {
 662                 wt_status_print_submodule_summary(s, 0);  /* staged */
 663                 wt_status_print_submodule_summary(s, 1);  /* unstaged */
 664         }
 665         if (s->show_untracked_files) {
 666                 wt_status_print_other(s, &s->untracked, "Untracked", "add");
 667                 if (s->show_ignored_files)
 668                         wt_status_print_other(s, &s->ignored, "Ignored", "add -f");
 669         } else if (s->commitable)
 670                 fprintf(s->fp, "# Untracked files not listed%s\n",
 671                         advice_status_hints
 672                         ? " (use -u option to show untracked files)" : "");
 673
 674         if (s->verbose)
 675                 wt_status_print_verbose(s);
 676         if (!s->commitable) {
 677                 if (s->amend)
 678                         fprintf(s->fp, "# No changes\n");
 679                 else if (s->nowarn)
 680                         ; /* nothing */
 681                 else if (s->workdir_dirty)
 682                         printf("no changes added to commit%s\n",
 683                                 advice_status_hints
 684                                 ? " (use \"git add\" and/or \"git commit -a\")" : "");
 685                 else if (s->untracked.nr)
 686                         printf("nothing added to commit but untracked files present%s\n",
 687                                 advice_status_hints
 688                                 ? " (use \"git add\" to track)" : "");
 689                 else if (s->is_initial)
 690                         printf("nothing to commit%s\n", advice_status_hints
 691                                 ? " (create/copy files and use \"git add\" to track)" : "");
 692                 else if (!s->show_untracked_files)
 693                         printf("nothing to commit%s\n", advice_status_hints
 694                                 ? " (use -u to show untracked files)" : "");
 695                 else
 696                         printf("nothing to commit%s\n", advice_status_hints
 697                                 ? " (working directory clean)" : "");
 698         }
 699 }
 700
 701 static void wt_shortstatus_unmerged(int null_termination, struct string_list_item *it,
 702                            struct wt_status *s)
 703 {
 704         struct wt_status_change_data *d = it->util;
 705         const char *how = "??";
 706
 707         switch (d->stagemask) {
 708         case 1: how = "DD"; break; /* both deleted */
 709         case 2: how = "AU"; break; /* added by us */
 710         case 3: how = "UD"; break; /* deleted by them */
 711         case 4: how = "UA"; break; /* added by them */
 712         case 5: how = "DU"; break; /* deleted by us */
 713         case 6: how = "AA"; break; /* both added */
 714         case 7: how = "UU"; break; /* both modified */
 715         }
 716         color_fprintf(s->fp, color(WT_STATUS_UNMERGED, s), "%s", how);
 717         if (null_termination) {
 718                 fprintf(stdout, " %s%c", it->string, 0);
 719         } else {
 720                 struct strbuf onebuf = STRBUF_INIT;
 721                 const char *one;
 722                 one = quote_path(it->string, -1, &onebuf, s->prefix);
 723                 printf(" %s\n", one);
 724                 strbuf_release(&onebuf);
 725         }
 726 }
 727
 728 static void wt_shortstatus_status(int null_termination, struct string_list_item *it,
 729                          struct wt_status *s)
 730 {
 731         struct wt_status_change_data *d = it->util;
 732
 733         if (d->index_status)
 734                 color_fprintf(s->fp, color(WT_STATUS_UPDATED, s), "%c", d->index_status);
 735         else
 736                 putchar(' ');
 737         if (d->worktree_status)
 738                 color_fprintf(s->fp, color(WT_STATUS_CHANGED, s), "%c", d->worktree_status);
 739         else
 740                 putchar(' ');
 741         putchar(' ');
 742         if (null_termination) {
 743                 fprintf(stdout, "%s%c", it->string, 0);
 744                 if (d->head_path)
 745                         fprintf(stdout, "%s%c", d->head_path, 0);
 746         } else {
 747                 struct strbuf onebuf = STRBUF_INIT;
 748                 const char *one;
 749                 if (d->head_path) {
 750                         one = quote_path(d->head_path, -1, &onebuf, s->prefix);
 751                         printf("%s -> ", one);
 752                         strbuf_release(&onebuf);
 753                 }
 754                 one = quote_path(it->string, -1, &onebuf, s->prefix);
 755                 printf("%s\n", one);
 756                 strbuf_release(&onebuf);
 757         }
 758 }
 759
 760 static void wt_shortstatus_other(int null_termination, struct string_list_item *it,
 761                                  struct wt_status *s, const char *sign)
 762 {
 763         if (null_termination) {
 764                 fprintf(stdout, "%s %s%c", sign, it->string, 0);
 765         } else {
 766                 struct strbuf onebuf = STRBUF_INIT;
 767                 const char *one;
 768                 one = quote_path(it->string, -1, &onebuf, s->prefix);
 769                 color_fprintf(s->fp, color(WT_STATUS_UNTRACKED, s), "%s", sign);
 770                 printf(" %s\n", one);
 771                 strbuf_release(&onebuf);
 772         }
 773 }
 774
 775 static void wt_shortstatus_print_tracking(struct wt_status *s)
 776 {
 777         struct branch *branch;
 778         const char *header_color = color(WT_STATUS_HEADER, s);
 779         const char *branch_color_local = color(WT_STATUS_LOCAL_BRANCH, s);
 780         const char *branch_color_remote = color(WT_STATUS_REMOTE_BRANCH, s);
 781
 782         const char *base;
 783         const char *branch_name;
 784         int num_ours, num_theirs;
 785
 786         color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "## ");
 787
 788         if (!s->branch)
 789                 return;
 790         branch_name = s->branch;
 791
 792         if (!prefixcmp(branch_name, "refs/heads/"))
 793                 branch_name += 11;
 794         else if (!strcmp(branch_name, "HEAD")) {
 795                 branch_name = "HEAD (no branch)";
 796                 branch_color_local = color(WT_STATUS_NOBRANCH, s);
 797         }
 798
 799         branch = branch_get(s->branch + 11);
 800         if (s->is_initial)
 801                 color_fprintf(s->fp, header_color, "Initial commit on ");
 802         if (!stat_tracking_info(branch, &num_ours, &num_theirs)) {
 803                 color_fprintf_ln(s->fp, branch_color_local,
 804                         "%s", branch_name);
 805                 return;
 806         }
 807
 808         base = branch->merge[0]->dst;
 809         base = shorten_unambiguous_ref(base, 0);
 810         color_fprintf(s->fp, branch_color_local, "%s", branch_name);
 811         color_fprintf(s->fp, header_color, "...");
 812         color_fprintf(s->fp, branch_color_remote, "%s", base);
 813
 814         color_fprintf(s->fp, header_color, " [");
 815         if (!num_ours) {
 816                 color_fprintf(s->fp, header_color, "behind ");
 817                 color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
 818         } else if (!num_theirs) {
 819                 color_fprintf(s->fp, header_color, "ahead ");
 820                 color_fprintf(s->fp, branch_color_local, "%d", num_ours);
 821         } else {
 822                 color_fprintf(s->fp, header_color, "ahead ");
 823                 color_fprintf(s->fp, branch_color_local, "%d", num_ours);
 824                 color_fprintf(s->fp, header_color, ", behind ");
 825                 color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
 826         }
 827
 828         color_fprintf_ln(s->fp, header_color, "]");
 829 }
 830
 831 void wt_shortstatus_print(struct wt_status *s, int null_termination, int show_branch)
 832 {
 833         int i;
 834
 835         if (show_branch)
 836                 wt_shortstatus_print_tracking(s);
 837
 838         for (i = 0; i < s->change.nr; i++) {
 839                 struct wt_status_change_data *d;
 840                 struct string_list_item *it;
 841
 842                 it = &(s->change.items[i]);
 843                 d = it->util;
 844                 if (d->stagemask)
 845                         wt_shortstatus_unmerged(null_termination, it, s);
 846                 else
 847                         wt_shortstatus_status(null_termination, it, s);
 848         }
 849         for (i = 0; i < s->untracked.nr; i++) {
 850                 struct string_list_item *it;
 851
 852                 it = &(s->untracked.items[i]);
 853                 wt_shortstatus_other(null_termination, it, s, "??");
 854         }
 855         for (i = 0; i < s->ignored.nr; i++) {
 856                 struct string_list_item *it;
 857
 858                 it = &(s->ignored.items[i]);
 859                 wt_shortstatus_other(null_termination, it, s, "!!");
 860         }
 861 }
 862
 863 void wt_porcelain_print(struct wt_status *s, int null_termination)
 864 {
 865         s->use_color = 0;
 866         s->relative_paths = 0;
 867         s->prefix = NULL;
 868         wt_shortstatus_print(s, null_termination, 0);
 869 }