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         GIT_COLOR_NIL,    /* WT_STATUS_ONBRANCH */
  25 };
  26
  27 static const char *color(int slot, struct wt_status *s)
  28 {
  29         const char *c = s->use_color > 0 ? s->color_palette[slot] : "";
  30         if (slot == WT_STATUS_ONBRANCH && color_is_nil(c))
  31                 c = s->color_palette[WT_STATUS_HEADER];
  32         return c;
  33 }
  34
  35 void wt_status_prepare(struct wt_status *s)
  36 {
  37         unsigned char sha1[20];
  38         const char *head;
  39
  40         memset(s, 0, sizeof(*s));
  41         memcpy(s->color_palette, default_wt_status_colors,
  42                sizeof(default_wt_status_colors));
  43         s->show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
  44         s->use_color = -1;
  45         s->relative_paths = 1;
  46         head = resolve_ref("HEAD", sha1, 0, NULL);
  47         s->branch = head ? xstrdup(head) : NULL;
  48         s->reference = "HEAD";
  49         s->fp = stdout;
  50         s->index_file = get_index_file();
  51         s->change.strdup_strings = 1;
  52         s->untracked.strdup_strings = 1;
  53         s->ignored.strdup_strings = 1;
  54 }
  55
  56 static void wt_status_print_unmerged_header(struct wt_status *s)
  57 {
  58         const char *c = color(WT_STATUS_HEADER, s);
  59
  60         color_fprintf_ln(s->fp, c, "# Unmerged paths:");
  61         if (!advice_status_hints)
  62                 return;
  63         if (s->in_merge)
  64                 ;
  65         else if (!s->is_initial)
  66                 color_fprintf_ln(s->fp, c, "#   (use \"git reset %s <file>...\" to unstage)", s->reference);
  67         else
  68                 color_fprintf_ln(s->fp, c, "#   (use \"git rm --cached <file>...\" to unstage)");
  69         color_fprintf_ln(s->fp, c, "#   (use \"git add/rm <file>...\" as appropriate to mark resolution)");
  70         color_fprintf_ln(s->fp, c, "#");
  71 }
  72
  73 static void wt_status_print_cached_header(struct wt_status *s)
  74 {
  75         const char *c = color(WT_STATUS_HEADER, s);
  76
  77         color_fprintf_ln(s->fp, c, "# Changes to be committed:");
  78         if (!advice_status_hints)
  79                 return;
  80         if (s->in_merge)
  81                 ; /* NEEDSWORK: use "git reset --unresolve"??? */
  82         else if (!s->is_initial)
  83                 color_fprintf_ln(s->fp, c, "#   (use \"git reset %s <file>...\" to unstage)", s->reference);
  84         else
  85                 color_fprintf_ln(s->fp, c, "#   (use \"git rm --cached <file>...\" to unstage)");
  86         color_fprintf_ln(s->fp, c, "#");
  87 }
  88
  89 static void wt_status_print_dirty_header(struct wt_status *s,
  90                                          int has_deleted,
  91                                          int has_dirty_submodules)
  92 {
  93         const char *c = color(WT_STATUS_HEADER, s);
  94
  95         color_fprintf_ln(s->fp, c, "# Changes not staged for commit:");
  96         if (!advice_status_hints)
  97                 return;
  98         if (!has_deleted)
  99                 color_fprintf_ln(s->fp, c, "#   (use \"git add <file>...\" to update what will be committed)");
 100         else
 101                 color_fprintf_ln(s->fp, c, "#   (use \"git add/rm <file>...\" to update what will be committed)");
 102         color_fprintf_ln(s->fp, c, "#   (use \"git checkout -- <file>...\" to discard changes in working directory)");
 103         if (has_dirty_submodules)
 104                 color_fprintf_ln(s->fp, c, "#   (commit or discard the untracked or modified content in submodules)");
 105         color_fprintf_ln(s->fp, c, "#");
 106 }
 107
 108 static void wt_status_print_other_header(struct wt_status *s,
 109                                          const char *what,
 110                                          const char *how)
 111 {
 112         const char *c = color(WT_STATUS_HEADER, s);
 113         color_fprintf_ln(s->fp, c, "# %s files:", what);
 114         if (!advice_status_hints)
 115                 return;
 116         color_fprintf_ln(s->fp, c, "#   (use \"git %s <file>...\" to include in what will be committed)", how);
 117         color_fprintf_ln(s->fp, c, "#");
 118 }
 119
 120 static void wt_status_print_trailer(struct wt_status *s)
 121 {
 122         color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "#");
 123 }
 124
 125 #define quote_path quote_path_relative
 126
 127 static void wt_status_print_unmerged_data(struct wt_status *s,
 128                                           struct string_list_item *it)
 129 {
 130         const char *c = color(WT_STATUS_UNMERGED, s);
 131         struct wt_status_change_data *d = it->util;
 132         struct strbuf onebuf = STRBUF_INIT;
 133         const char *one, *how = "bug";
 134
 135         one = quote_path(it->string, -1, &onebuf, s->prefix);
 136         color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "#\t");
 137         switch (d->stagemask) {
 138         case 1: how = "both deleted:"; break;
 139         case 2: how = "added by us:"; break;
 140         case 3: how = "deleted by them:"; break;
 141         case 4: how = "added by them:"; break;
 142         case 5: how = "deleted by us:"; break;
 143         case 6: how = "both added:"; break;
 144         case 7: how = "both modified:"; break;
 145         }
 146         color_fprintf(s->fp, c, "%-20s%s\n", how, one);
 147         strbuf_release(&onebuf);
 148 }
 149
 150 static void wt_status_print_change_data(struct wt_status *s,
 151                                         int change_type,
 152                                         struct string_list_item *it)
 153 {
 154         struct wt_status_change_data *d = it->util;
 155         const char *c = color(change_type, s);
 156         int status = status;
 157         char *one_name;
 158         char *two_name;
 159         const char *one, *two;
 160         struct strbuf onebuf = STRBUF_INIT, twobuf = STRBUF_INIT;
 161         struct strbuf extra = STRBUF_INIT;
 162
 163         one_name = two_name = it->string;
 164         switch (change_type) {
 165         case WT_STATUS_UPDATED:
 166                 status = d->index_status;
 167                 if (d->head_path)
 168                         one_name = d->head_path;
 169                 break;
 170         case WT_STATUS_CHANGED:
 171                 if (d->new_submodule_commits || d->dirty_submodule) {
 172                         strbuf_addstr(&extra, " (");
 173                         if (d->new_submodule_commits)
 174                                 strbuf_addf(&extra, "new commits, ");
 175                         if (d->dirty_submodule & DIRTY_SUBMODULE_MODIFIED)
 176                                 strbuf_addf(&extra, "modified content, ");
 177                         if (d->dirty_submodule & DIRTY_SUBMODULE_UNTRACKED)
 178                                 strbuf_addf(&extra, "untracked content, ");
 179                         strbuf_setlen(&extra, extra.len - 2);
 180                         strbuf_addch(&extra, ')');
 181                 }
 182                 status = d->worktree_status;
 183                 break;
 184         }
 185
 186         one = quote_path(one_name, -1, &onebuf, s->prefix);
 187         two = quote_path(two_name, -1, &twobuf, s->prefix);
 188
 189         color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "#\t");
 190         switch (status) {
 191         case DIFF_STATUS_ADDED:
 192                 color_fprintf(s->fp, c, "new file:   %s", one);
 193                 break;
 194         case DIFF_STATUS_COPIED:
 195                 color_fprintf(s->fp, c, "copied:     %s -> %s", one, two);
 196                 break;
 197         case DIFF_STATUS_DELETED:
 198                 color_fprintf(s->fp, c, "deleted:    %s", one);
 199                 break;
 200         case DIFF_STATUS_MODIFIED:
 201                 color_fprintf(s->fp, c, "modified:   %s", one);
 202                 break;
 203         case DIFF_STATUS_RENAMED:
 204                 color_fprintf(s->fp, c, "renamed:    %s -> %s", one, two);
 205                 break;
 206         case DIFF_STATUS_TYPE_CHANGED:
 207                 color_fprintf(s->fp, c, "typechange: %s", one);
 208                 break;
 209         case DIFF_STATUS_UNKNOWN:
 210                 color_fprintf(s->fp, c, "unknown:    %s", one);
 211                 break;
 212         case DIFF_STATUS_UNMERGED:
 213                 color_fprintf(s->fp, c, "unmerged:   %s", one);
 214                 break;
 215         default:
 216                 die("bug: unhandled diff status %c", status);
 217         }
 218         if (extra.len) {
 219                 color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "%s", extra.buf);
 220                 strbuf_release(&extra);
 221         }
 222         fprintf(s->fp, "\n");
 223         strbuf_release(&onebuf);
 224         strbuf_release(&twobuf);
 225 }
 226
 227 static void wt_status_collect_changed_cb(struct diff_queue_struct *q,
 228                                          struct diff_options *options,
 229                                          void *data)
 230 {
 231         struct wt_status *s = data;
 232         int i;
 233
 234         if (!q->nr)
 235                 return;
 236         s->workdir_dirty = 1;
 237         for (i = 0; i < q->nr; i++) {
 238                 struct diff_filepair *p;
 239                 struct string_list_item *it;
 240                 struct wt_status_change_data *d;
 241
 242                 p = q->queue[i];
 243                 it = string_list_insert(&s->change, p->one->path);
 244                 d = it->util;
 245                 if (!d) {
 246                         d = xcalloc(1, sizeof(*d));
 247                         it->util = d;
 248                 }
 249                 if (!d->worktree_status)
 250                         d->worktree_status = p->status;
 251                 d->dirty_submodule = p->two->dirty_submodule;
 252                 if (S_ISGITLINK(p->two->mode))
 253                         d->new_submodule_commits = !!hashcmp(p->one->sha1, p->two->sha1);
 254         }
 255 }
 256
 257 static int unmerged_mask(const char *path)
 258 {
 259         int pos, mask;
 260         struct cache_entry *ce;
 261
 262         pos = cache_name_pos(path, strlen(path));
 263         if (0 <= pos)
 264                 return 0;
 265
 266         mask = 0;
 267         pos = -pos-1;
 268         while (pos < active_nr) {
 269                 ce = active_cache[pos++];
 270                 if (strcmp(ce->name, path) || !ce_stage(ce))
 271                         break;
 272                 mask |= (1 << (ce_stage(ce) - 1));
 273         }
 274         return mask;
 275 }
 276
 277 static void wt_status_collect_updated_cb(struct diff_queue_struct *q,
 278                                          struct diff_options *options,
 279                                          void *data)
 280 {
 281         struct wt_status *s = data;
 282         int i;
 283
 284         for (i = 0; i < q->nr; i++) {
 285                 struct diff_filepair *p;
 286                 struct string_list_item *it;
 287                 struct wt_status_change_data *d;
 288
 289                 p = q->queue[i];
 290                 it = string_list_insert(&s->change, p->two->path);
 291                 d = it->util;
 292                 if (!d) {
 293                         d = xcalloc(1, sizeof(*d));
 294                         it->util = d;
 295                 }
 296                 if (!d->index_status)
 297                         d->index_status = p->status;
 298                 switch (p->status) {
 299                 case DIFF_STATUS_COPIED:
 300                 case DIFF_STATUS_RENAMED:
 301                         d->head_path = xstrdup(p->one->path);
 302                         break;
 303                 case DIFF_STATUS_UNMERGED:
 304                         d->stagemask = unmerged_mask(p->two->path);
 305                         break;
 306                 }
 307         }
 308 }
 309
 310 static void wt_status_collect_changes_worktree(struct wt_status *s)
 311 {
 312         struct rev_info rev;
 313
 314         init_revisions(&rev, NULL);
 315         setup_revisions(0, NULL, &rev, NULL);
 316         rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 317         DIFF_OPT_SET(&rev.diffopt, DIRTY_SUBMODULES);
 318         if (!s->show_untracked_files)
 319                 DIFF_OPT_SET(&rev.diffopt, IGNORE_UNTRACKED_IN_SUBMODULES);
 320         if (s->ignore_submodule_arg) {
 321                 DIFF_OPT_SET(&rev.diffopt, OVERRIDE_SUBMODULE_CONFIG);
 322                 handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
 323     }
 324         rev.diffopt.format_callback = wt_status_collect_changed_cb;
 325         rev.diffopt.format_callback_data = s;
 326         init_pathspec(&rev.prune_data, s->pathspec);
 327         run_diff_files(&rev, 0);
 328 }
 329
 330 static void wt_status_collect_changes_index(struct wt_status *s)
 331 {
 332         struct rev_info rev;
 333         struct setup_revision_opt opt;
 334
 335         init_revisions(&rev, NULL);
 336         memset(&opt, 0, sizeof(opt));
 337         opt.def = s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference;
 338         setup_revisions(0, NULL, &rev, &opt);
 339
 340         if (s->ignore_submodule_arg) {
 341                 DIFF_OPT_SET(&rev.diffopt, OVERRIDE_SUBMODULE_CONFIG);
 342                 handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
 343         }
 344
 345         rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 346         rev.diffopt.format_callback = wt_status_collect_updated_cb;
 347         rev.diffopt.format_callback_data = s;
 348         rev.diffopt.detect_rename = 1;
 349         rev.diffopt.rename_limit = 200;
 350         rev.diffopt.break_opt = 0;
 351         init_pathspec(&rev.prune_data, s->pathspec);
 352         run_diff_index(&rev, 1);
 353 }
 354
 355 static void wt_status_collect_changes_initial(struct wt_status *s)
 356 {
 357         struct pathspec pathspec;
 358         int i;
 359
 360         init_pathspec(&pathspec, s->pathspec);
 361         for (i = 0; i < active_nr; i++) {
 362                 struct string_list_item *it;
 363                 struct wt_status_change_data *d;
 364                 struct cache_entry *ce = active_cache[i];
 365
 366                 if (!ce_path_match(ce, &pathspec))
 367                         continue;
 368                 it = string_list_insert(&s->change, ce->name);
 369                 d = it->util;
 370                 if (!d) {
 371                         d = xcalloc(1, sizeof(*d));
 372                         it->util = d;
 373                 }
 374                 if (ce_stage(ce)) {
 375                         d->index_status = DIFF_STATUS_UNMERGED;
 376                         d->stagemask |= (1 << (ce_stage(ce) - 1));
 377                 }
 378                 else
 379                         d->index_status = DIFF_STATUS_ADDED;
 380         }
 381         free_pathspec(&pathspec);
 382 }
 383
 384 static void wt_status_collect_untracked(struct wt_status *s)
 385 {
 386         int i;
 387         struct dir_struct dir;
 388
 389         if (!s->show_untracked_files)
 390                 return;
 391         memset(&dir, 0, sizeof(dir));
 392         if (s->show_untracked_files != SHOW_ALL_UNTRACKED_FILES)
 393                 dir.flags |=
 394                         DIR_SHOW_OTHER_DIRECTORIES | DIR_HIDE_EMPTY_DIRECTORIES;
 395         setup_standard_excludes(&dir);
 396
 397         fill_directory(&dir, s->pathspec);
 398         for (i = 0; i < dir.nr; i++) {
 399                 struct dir_entry *ent = dir.entries[i];
 400                 if (cache_name_is_other(ent->name, ent->len) &&
 401                     match_pathspec(s->pathspec, ent->name, ent->len, 0, NULL))
 402                         string_list_insert(&s->untracked, ent->name);
 403                 free(ent);
 404         }
 405
 406         if (s->show_ignored_files) {
 407                 dir.nr = 0;
 408                 dir.flags = DIR_SHOW_IGNORED | DIR_SHOW_OTHER_DIRECTORIES;
 409                 fill_directory(&dir, s->pathspec);
 410                 for (i = 0; i < dir.nr; i++) {
 411                         struct dir_entry *ent = dir.entries[i];
 412                         if (cache_name_is_other(ent->name, ent->len) &&
 413                             match_pathspec(s->pathspec, ent->name, ent->len, 0, NULL))
 414                                 string_list_insert(&s->ignored, ent->name);
 415                         free(ent);
 416                 }
 417         }
 418
 419         free(dir.entries);
 420 }
 421
 422 void wt_status_collect(struct wt_status *s)
 423 {
 424         wt_status_collect_changes_worktree(s);
 425
 426         if (s->is_initial)
 427                 wt_status_collect_changes_initial(s);
 428         else
 429                 wt_status_collect_changes_index(s);
 430         wt_status_collect_untracked(s);
 431 }
 432
 433 static void wt_status_print_unmerged(struct wt_status *s)
 434 {
 435         int shown_header = 0;
 436         int i;
 437
 438         for (i = 0; i < s->change.nr; i++) {
 439                 struct wt_status_change_data *d;
 440                 struct string_list_item *it;
 441                 it = &(s->change.items[i]);
 442                 d = it->util;
 443                 if (!d->stagemask)
 444                         continue;
 445                 if (!shown_header) {
 446                         wt_status_print_unmerged_header(s);
 447                         shown_header = 1;
 448                 }
 449                 wt_status_print_unmerged_data(s, it);
 450         }
 451         if (shown_header)
 452                 wt_status_print_trailer(s);
 453
 454 }
 455
 456 static void wt_status_print_updated(struct wt_status *s)
 457 {
 458         int shown_header = 0;
 459         int i;
 460
 461         for (i = 0; i < s->change.nr; i++) {
 462                 struct wt_status_change_data *d;
 463                 struct string_list_item *it;
 464                 it = &(s->change.items[i]);
 465                 d = it->util;
 466                 if (!d->index_status ||
 467                     d->index_status == DIFF_STATUS_UNMERGED)
 468                         continue;
 469                 if (!shown_header) {
 470                         wt_status_print_cached_header(s);
 471                         s->commitable = 1;
 472                         shown_header = 1;
 473                 }
 474                 wt_status_print_change_data(s, WT_STATUS_UPDATED, it);
 475         }
 476         if (shown_header)
 477                 wt_status_print_trailer(s);
 478 }
 479
 480 /*
 481  * -1 : has delete
 482  *  0 : no change
 483  *  1 : some change but no delete
 484  */
 485 static int wt_status_check_worktree_changes(struct wt_status *s,
 486                                              int *dirty_submodules)
 487 {
 488         int i;
 489         int changes = 0;
 490
 491         *dirty_submodules = 0;
 492
 493         for (i = 0; i < s->change.nr; i++) {
 494                 struct wt_status_change_data *d;
 495                 d = s->change.items[i].util;
 496                 if (!d->worktree_status ||
 497                     d->worktree_status == DIFF_STATUS_UNMERGED)
 498                         continue;
 499                 if (!changes)
 500                         changes = 1;
 501                 if (d->dirty_submodule)
 502                         *dirty_submodules = 1;
 503                 if (d->worktree_status == DIFF_STATUS_DELETED)
 504                         changes = -1;
 505         }
 506         return changes;
 507 }
 508
 509 static void wt_status_print_changed(struct wt_status *s)
 510 {
 511         int i, dirty_submodules;
 512         int worktree_changes = wt_status_check_worktree_changes(s, &dirty_submodules);
 513
 514         if (!worktree_changes)
 515                 return;
 516
 517         wt_status_print_dirty_header(s, worktree_changes < 0, dirty_submodules);
 518
 519         for (i = 0; i < s->change.nr; i++) {
 520                 struct wt_status_change_data *d;
 521                 struct string_list_item *it;
 522                 it = &(s->change.items[i]);
 523                 d = it->util;
 524                 if (!d->worktree_status ||
 525                     d->worktree_status == DIFF_STATUS_UNMERGED)
 526                         continue;
 527                 wt_status_print_change_data(s, WT_STATUS_CHANGED, it);
 528         }
 529         wt_status_print_trailer(s);
 530 }
 531
 532 static void wt_status_print_submodule_summary(struct wt_status *s, int uncommitted)
 533 {
 534         struct child_process sm_summary;
 535         char summary_limit[64];
 536         char index[PATH_MAX];
 537         const char *env[] = { NULL, NULL };
 538         const char *argv[8];
 539
 540         env[0] =        index;
 541         argv[0] =       "submodule";
 542         argv[1] =       "summary";
 543         argv[2] =       uncommitted ? "--files" : "--cached";
 544         argv[3] =       "--for-status";
 545         argv[4] =       "--summary-limit";
 546         argv[5] =       summary_limit;
 547         argv[6] =       uncommitted ? NULL : (s->amend ? "HEAD^" : "HEAD");
 548         argv[7] =       NULL;
 549
 550         sprintf(summary_limit, "%d", s->submodule_summary);
 551         snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", s->index_file);
 552
 553         memset(&sm_summary, 0, sizeof(sm_summary));
 554         sm_summary.argv = argv;
 555         sm_summary.env = env;
 556         sm_summary.git_cmd = 1;
 557         sm_summary.no_stdin = 1;
 558         fflush(s->fp);
 559         sm_summary.out = dup(fileno(s->fp));    /* run_command closes it */
 560         run_command(&sm_summary);
 561 }
 562
 563 static void wt_status_print_other(struct wt_status *s,
 564                                   struct string_list *l,
 565                                   const char *what,
 566                                   const char *how)
 567 {
 568         int i;
 569         struct strbuf buf = STRBUF_INIT;
 570
 571         if (!s->untracked.nr)
 572                 return;
 573
 574         wt_status_print_other_header(s, what, how);
 575
 576         for (i = 0; i < l->nr; i++) {
 577                 struct string_list_item *it;
 578                 it = &(l->items[i]);
 579                 color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "#\t");
 580                 color_fprintf_ln(s->fp, color(WT_STATUS_UNTRACKED, s), "%s",
 581                                  quote_path(it->string, strlen(it->string),
 582                                             &buf, s->prefix));
 583         }
 584         strbuf_release(&buf);
 585 }
 586
 587 static void wt_status_print_verbose(struct wt_status *s)
 588 {
 589         struct rev_info rev;
 590         struct setup_revision_opt opt;
 591
 592         init_revisions(&rev, NULL);
 593         DIFF_OPT_SET(&rev.diffopt, ALLOW_TEXTCONV);
 594
 595         memset(&opt, 0, sizeof(opt));
 596         opt.def = s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference;
 597         setup_revisions(0, NULL, &rev, &opt);
 598
 599         rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
 600         rev.diffopt.detect_rename = 1;
 601         rev.diffopt.file = s->fp;
 602         rev.diffopt.close_file = 0;
 603         /*
 604          * If we're not going to stdout, then we definitely don't
 605          * want color, since we are going to the commit message
 606          * file (and even the "auto" setting won't work, since it
 607          * will have checked isatty on stdout).
 608          */
 609         if (s->fp != stdout)
 610                 DIFF_OPT_CLR(&rev.diffopt, COLOR_DIFF);
 611         run_diff_index(&rev, 1);
 612 }
 613
 614 static void wt_status_print_tracking(struct wt_status *s)
 615 {
 616         struct strbuf sb = STRBUF_INIT;
 617         const char *cp, *ep;
 618         struct branch *branch;
 619
 620         assert(s->branch && !s->is_initial);
 621         if (prefixcmp(s->branch, "refs/heads/"))
 622                 return;
 623         branch = branch_get(s->branch + 11);
 624         if (!format_tracking_info(branch, &sb))
 625                 return;
 626
 627         for (cp = sb.buf; (ep = strchr(cp, '\n')) != NULL; cp = ep + 1)
 628                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s),
 629                                  "# %.*s", (int)(ep - cp), cp);
 630         color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "#");
 631 }
 632
 633 void wt_status_print(struct wt_status *s)
 634 {
 635         const char *branch_color = color(WT_STATUS_ONBRANCH, s);
 636         const char *branch_status_color = color(WT_STATUS_HEADER, s);
 637
 638         if (s->branch) {
 639                 const char *on_what = "On branch ";
 640                 const char *branch_name = s->branch;
 641                 if (!prefixcmp(branch_name, "refs/heads/"))
 642                         branch_name += 11;
 643                 else if (!strcmp(branch_name, "HEAD")) {
 644                         branch_name = "";
 645                         branch_status_color = color(WT_STATUS_NOBRANCH, s);
 646                         on_what = "Not currently on any branch.";
 647                 }
 648                 color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "# ");
 649                 color_fprintf(s->fp, branch_status_color, "%s", on_what);
 650                 color_fprintf_ln(s->fp, branch_color, "%s", branch_name);
 651                 if (!s->is_initial)
 652                         wt_status_print_tracking(s);
 653         }
 654
 655         if (s->is_initial) {
 656                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "#");
 657                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "# Initial commit");
 658                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "#");
 659         }
 660
 661         wt_status_print_updated(s);
 662         wt_status_print_unmerged(s);
 663         wt_status_print_changed(s);
 664         if (s->submodule_summary &&
 665             (!s->ignore_submodule_arg ||
 666              strcmp(s->ignore_submodule_arg, "all"))) {
 667                 wt_status_print_submodule_summary(s, 0);  /* staged */
 668                 wt_status_print_submodule_summary(s, 1);  /* unstaged */
 669         }
 670         if (s->show_untracked_files) {
 671                 wt_status_print_other(s, &s->untracked, "Untracked", "add");
 672                 if (s->show_ignored_files)
 673                         wt_status_print_other(s, &s->ignored, "Ignored", "add -f");
 674         } else if (s->commitable)
 675                 fprintf(s->fp, "# Untracked files not listed%s\n",
 676                         advice_status_hints
 677                         ? " (use -u option to show untracked files)" : "");
 678
 679         if (s->verbose)
 680                 wt_status_print_verbose(s);
 681         if (!s->commitable) {
 682                 if (s->amend)
 683                         fprintf(s->fp, "# No changes\n");
 684                 else if (s->nowarn)
 685                         ; /* nothing */
 686                 else if (s->workdir_dirty)
 687                         printf("no changes added to commit%s\n",
 688                                 advice_status_hints
 689                                 ? " (use \"git add\" and/or \"git commit -a\")" : "");
 690                 else if (s->untracked.nr)
 691                         printf("nothing added to commit but untracked files present%s\n",
 692                                 advice_status_hints
 693                                 ? " (use \"git add\" to track)" : "");
 694                 else if (s->is_initial)
 695                         printf("nothing to commit%s\n", advice_status_hints
 696                                 ? " (create/copy files and use \"git add\" to track)" : "");
 697                 else if (!s->show_untracked_files)
 698                         printf("nothing to commit%s\n", advice_status_hints
 699                                 ? " (use -u to show untracked files)" : "");
 700                 else
 701                         printf("nothing to commit%s\n", advice_status_hints
 702                                 ? " (working directory clean)" : "");
 703         }
 704 }
 705
 706 static void wt_shortstatus_unmerged(int null_termination, struct string_list_item *it,
 707                            struct wt_status *s)
 708 {
 709         struct wt_status_change_data *d = it->util;
 710         const char *how = "??";
 711
 712         switch (d->stagemask) {
 713         case 1: how = "DD"; break; /* both deleted */
 714         case 2: how = "AU"; break; /* added by us */
 715         case 3: how = "UD"; break; /* deleted by them */
 716         case 4: how = "UA"; break; /* added by them */
 717         case 5: how = "DU"; break; /* deleted by us */
 718         case 6: how = "AA"; break; /* both added */
 719         case 7: how = "UU"; break; /* both modified */
 720         }
 721         color_fprintf(s->fp, color(WT_STATUS_UNMERGED, s), "%s", how);
 722         if (null_termination) {
 723                 fprintf(stdout, " %s%c", it->string, 0);
 724         } else {
 725                 struct strbuf onebuf = STRBUF_INIT;
 726                 const char *one;
 727                 one = quote_path(it->string, -1, &onebuf, s->prefix);
 728                 printf(" %s\n", one);
 729                 strbuf_release(&onebuf);
 730         }
 731 }
 732
 733 static void wt_shortstatus_status(int null_termination, struct string_list_item *it,
 734                          struct wt_status *s)
 735 {
 736         struct wt_status_change_data *d = it->util;
 737
 738         if (d->index_status)
 739                 color_fprintf(s->fp, color(WT_STATUS_UPDATED, s), "%c", d->index_status);
 740         else
 741                 putchar(' ');
 742         if (d->worktree_status)
 743                 color_fprintf(s->fp, color(WT_STATUS_CHANGED, s), "%c", d->worktree_status);
 744         else
 745                 putchar(' ');
 746         putchar(' ');
 747         if (null_termination) {
 748                 fprintf(stdout, "%s%c", it->string, 0);
 749                 if (d->head_path)
 750                         fprintf(stdout, "%s%c", d->head_path, 0);
 751         } else {
 752                 struct strbuf onebuf = STRBUF_INIT;
 753                 const char *one;
 754                 if (d->head_path) {
 755                         one = quote_path(d->head_path, -1, &onebuf, s->prefix);
 756                         if (*one != '"' && strchr(one, ' ') != NULL) {
 757                                 putchar('"');
 758                                 strbuf_addch(&onebuf, '"');
 759                                 one = onebuf.buf;
 760                         }
 761                         printf("%s -> ", one);
 762                         strbuf_release(&onebuf);
 763                 }
 764                 one = quote_path(it->string, -1, &onebuf, s->prefix);
 765                 if (*one != '"' && strchr(one, ' ') != NULL) {
 766                         putchar('"');
 767                         strbuf_addch(&onebuf, '"');
 768                         one = onebuf.buf;
 769                 }
 770                 printf("%s\n", one);
 771                 strbuf_release(&onebuf);
 772         }
 773 }
 774
 775 static void wt_shortstatus_other(int null_termination, struct string_list_item *it,
 776                                  struct wt_status *s, const char *sign)
 777 {
 778         if (null_termination) {
 779                 fprintf(stdout, "%s %s%c", sign, it->string, 0);
 780         } else {
 781                 struct strbuf onebuf = STRBUF_INIT;
 782                 const char *one;
 783                 one = quote_path(it->string, -1, &onebuf, s->prefix);
 784                 color_fprintf(s->fp, color(WT_STATUS_UNTRACKED, s), "%s", sign);
 785                 printf(" %s\n", one);
 786                 strbuf_release(&onebuf);
 787         }
 788 }
 789
 790 static void wt_shortstatus_print_tracking(struct wt_status *s)
 791 {
 792         struct branch *branch;
 793         const char *header_color = color(WT_STATUS_HEADER, s);
 794         const char *branch_color_local = color(WT_STATUS_LOCAL_BRANCH, s);
 795         const char *branch_color_remote = color(WT_STATUS_REMOTE_BRANCH, s);
 796
 797         const char *base;
 798         const char *branch_name;
 799         int num_ours, num_theirs;
 800
 801         color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "## ");
 802
 803         if (!s->branch)
 804                 return;
 805         branch_name = s->branch;
 806
 807         if (!prefixcmp(branch_name, "refs/heads/"))
 808                 branch_name += 11;
 809         else if (!strcmp(branch_name, "HEAD")) {
 810                 branch_name = "HEAD (no branch)";
 811                 branch_color_local = color(WT_STATUS_NOBRANCH, s);
 812         }
 813
 814         branch = branch_get(s->branch + 11);
 815         if (s->is_initial)
 816                 color_fprintf(s->fp, header_color, "Initial commit on ");
 817         if (!stat_tracking_info(branch, &num_ours, &num_theirs)) {
 818                 color_fprintf_ln(s->fp, branch_color_local,
 819                         "%s", branch_name);
 820                 return;
 821         }
 822
 823         base = branch->merge[0]->dst;
 824         base = shorten_unambiguous_ref(base, 0);
 825         color_fprintf(s->fp, branch_color_local, "%s", branch_name);
 826         color_fprintf(s->fp, header_color, "...");
 827         color_fprintf(s->fp, branch_color_remote, "%s", base);
 828
 829         color_fprintf(s->fp, header_color, " [");
 830         if (!num_ours) {
 831                 color_fprintf(s->fp, header_color, "behind ");
 832                 color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
 833         } else if (!num_theirs) {
 834                 color_fprintf(s->fp, header_color, "ahead ");
 835                 color_fprintf(s->fp, branch_color_local, "%d", num_ours);
 836         } else {
 837                 color_fprintf(s->fp, header_color, "ahead ");
 838                 color_fprintf(s->fp, branch_color_local, "%d", num_ours);
 839                 color_fprintf(s->fp, header_color, ", behind ");
 840                 color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
 841         }
 842
 843         color_fprintf_ln(s->fp, header_color, "]");
 844 }
 845
 846 void wt_shortstatus_print(struct wt_status *s, int null_termination, int show_branch)
 847 {
 848         int i;
 849
 850         if (show_branch)
 851                 wt_shortstatus_print_tracking(s);
 852
 853         for (i = 0; i < s->change.nr; i++) {
 854                 struct wt_status_change_data *d;
 855                 struct string_list_item *it;
 856
 857                 it = &(s->change.items[i]);
 858                 d = it->util;
 859                 if (d->stagemask)
 860                         wt_shortstatus_unmerged(null_termination, it, s);
 861                 else
 862                         wt_shortstatus_status(null_termination, it, s);
 863         }
 864         for (i = 0; i < s->untracked.nr; i++) {
 865                 struct string_list_item *it;
 866
 867                 it = &(s->untracked.items[i]);
 868                 wt_shortstatus_other(null_termination, it, s, "??");
 869         }
 870         for (i = 0; i < s->ignored.nr; i++) {
 871                 struct string_list_item *it;
 872
 873                 it = &(s->ignored.items[i]);
 874                 wt_shortstatus_other(null_termination, it, s, "!!");
 875         }
 876 }
 877
 878 void wt_porcelain_print(struct wt_status *s, int null_termination)
 879 {
 880         s->use_color = 0;
 881         s->relative_paths = 0;
 882         s->prefix = NULL;
 883         wt_shortstatus_print(s, null_termination, 0);
 884 }