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         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         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         int i;
 358
 359         for (i = 0; i < active_nr; i++) {
 360                 struct string_list_item *it;
 361                 struct wt_status_change_data *d;
 362                 struct cache_entry *ce = active_cache[i];
 363
 364                 if (!ce_path_match(ce, s->pathspec))
 365                         continue;
 366                 it = string_list_insert(&s->change, ce->name);
 367                 d = it->util;
 368                 if (!d) {
 369                         d = xcalloc(1, sizeof(*d));
 370                         it->util = d;
 371                 }
 372                 if (ce_stage(ce)) {
 373                         d->index_status = DIFF_STATUS_UNMERGED;
 374                         d->stagemask |= (1 << (ce_stage(ce) - 1));
 375                 }
 376                 else
 377                         d->index_status = DIFF_STATUS_ADDED;
 378         }
 379 }
 380
 381 static void wt_status_collect_untracked(struct wt_status *s)
 382 {
 383         int i;
 384         struct dir_struct dir;
 385
 386         if (!s->show_untracked_files)
 387                 return;
 388         memset(&dir, 0, sizeof(dir));
 389         if (s->show_untracked_files != SHOW_ALL_UNTRACKED_FILES)
 390                 dir.flags |=
 391                         DIR_SHOW_OTHER_DIRECTORIES | DIR_HIDE_EMPTY_DIRECTORIES;
 392         setup_standard_excludes(&dir);
 393
 394         fill_directory(&dir, s->pathspec);
 395         for (i = 0; i < dir.nr; i++) {
 396                 struct dir_entry *ent = dir.entries[i];
 397                 if (cache_name_is_other(ent->name, ent->len) &&
 398                     match_pathspec(s->pathspec, ent->name, ent->len, 0, NULL))
 399                         string_list_insert(&s->untracked, ent->name);
 400                 free(ent);
 401         }
 402
 403         if (s->show_ignored_files) {
 404                 dir.nr = 0;
 405                 dir.flags = DIR_SHOW_IGNORED | DIR_SHOW_OTHER_DIRECTORIES;
 406                 fill_directory(&dir, s->pathspec);
 407                 for (i = 0; i < dir.nr; i++) {
 408                         struct dir_entry *ent = dir.entries[i];
 409                         if (cache_name_is_other(ent->name, ent->len) &&
 410                             match_pathspec(s->pathspec, ent->name, ent->len, 0, NULL))
 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_ONBRANCH, s);
 633         const char *branch_status_color = color(WT_STATUS_HEADER, s);
 634
 635         if (s->branch) {
 636                 const char *on_what = "On branch ";
 637                 const char *branch_name = s->branch;
 638                 if (!prefixcmp(branch_name, "refs/heads/"))
 639                         branch_name += 11;
 640                 else if (!strcmp(branch_name, "HEAD")) {
 641                         branch_name = "";
 642                         branch_status_color = color(WT_STATUS_NOBRANCH, s);
 643                         on_what = "Not currently on any branch.";
 644                 }
 645                 color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "# ");
 646                 color_fprintf(s->fp, branch_status_color, "%s", on_what);
 647                 color_fprintf_ln(s->fp, branch_color, "%s", branch_name);
 648                 if (!s->is_initial)
 649                         wt_status_print_tracking(s);
 650         }
 651
 652         if (s->is_initial) {
 653                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "#");
 654                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "# Initial commit");
 655                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "#");
 656         }
 657
 658         wt_status_print_updated(s);
 659         wt_status_print_unmerged(s);
 660         wt_status_print_changed(s);
 661         if (s->submodule_summary &&
 662             (!s->ignore_submodule_arg ||
 663              strcmp(s->ignore_submodule_arg, "all"))) {
 664                 wt_status_print_submodule_summary(s, 0);  /* staged */
 665                 wt_status_print_submodule_summary(s, 1);  /* unstaged */
 666         }
 667         if (s->show_untracked_files) {
 668                 wt_status_print_other(s, &s->untracked, "Untracked", "add");
 669                 if (s->show_ignored_files)
 670                         wt_status_print_other(s, &s->ignored, "Ignored", "add -f");
 671         } else if (s->commitable)
 672                 fprintf(s->fp, "# Untracked files not listed%s\n",
 673                         advice_status_hints
 674                         ? " (use -u option to show untracked files)" : "");
 675
 676         if (s->verbose)
 677                 wt_status_print_verbose(s);
 678         if (!s->commitable) {
 679                 if (s->amend)
 680                         fprintf(s->fp, "# No changes\n");
 681                 else if (s->nowarn)
 682                         ; /* nothing */
 683                 else if (s->workdir_dirty)
 684                         printf("no changes added to commit%s\n",
 685                                 advice_status_hints
 686                                 ? " (use \"git add\" and/or \"git commit -a\")" : "");
 687                 else if (s->untracked.nr)
 688                         printf("nothing added to commit but untracked files present%s\n",
 689                                 advice_status_hints
 690                                 ? " (use \"git add\" to track)" : "");
 691                 else if (s->is_initial)
 692                         printf("nothing to commit%s\n", advice_status_hints
 693                                 ? " (create/copy files and use \"git add\" to track)" : "");
 694                 else if (!s->show_untracked_files)
 695                         printf("nothing to commit%s\n", advice_status_hints
 696                                 ? " (use -u to show untracked files)" : "");
 697                 else
 698                         printf("nothing to commit%s\n", advice_status_hints
 699                                 ? " (working directory clean)" : "");
 700         }
 701 }
 702
 703 static void wt_shortstatus_unmerged(int null_termination, struct string_list_item *it,
 704                            struct wt_status *s)
 705 {
 706         struct wt_status_change_data *d = it->util;
 707         const char *how = "??";
 708
 709         switch (d->stagemask) {
 710         case 1: how = "DD"; break; /* both deleted */
 711         case 2: how = "AU"; break; /* added by us */
 712         case 3: how = "UD"; break; /* deleted by them */
 713         case 4: how = "UA"; break; /* added by them */
 714         case 5: how = "DU"; break; /* deleted by us */
 715         case 6: how = "AA"; break; /* both added */
 716         case 7: how = "UU"; break; /* both modified */
 717         }
 718         color_fprintf(s->fp, color(WT_STATUS_UNMERGED, s), "%s", how);
 719         if (null_termination) {
 720                 fprintf(stdout, " %s%c", it->string, 0);
 721         } else {
 722                 struct strbuf onebuf = STRBUF_INIT;
 723                 const char *one;
 724                 one = quote_path(it->string, -1, &onebuf, s->prefix);
 725                 printf(" %s\n", one);
 726                 strbuf_release(&onebuf);
 727         }
 728 }
 729
 730 static void wt_shortstatus_status(int null_termination, struct string_list_item *it,
 731                          struct wt_status *s)
 732 {
 733         struct wt_status_change_data *d = it->util;
 734
 735         if (d->index_status)
 736                 color_fprintf(s->fp, color(WT_STATUS_UPDATED, s), "%c", d->index_status);
 737         else
 738                 putchar(' ');
 739         if (d->worktree_status)
 740                 color_fprintf(s->fp, color(WT_STATUS_CHANGED, s), "%c", d->worktree_status);
 741         else
 742                 putchar(' ');
 743         putchar(' ');
 744         if (null_termination) {
 745                 fprintf(stdout, "%s%c", it->string, 0);
 746                 if (d->head_path)
 747                         fprintf(stdout, "%s%c", d->head_path, 0);
 748         } else {
 749                 struct strbuf onebuf = STRBUF_INIT;
 750                 const char *one;
 751                 if (d->head_path) {
 752                         one = quote_path(d->head_path, -1, &onebuf, s->prefix);
 753                         if (*one != '"' && strchr(one, ' ') != NULL) {
 754                                 putchar('"');
 755                                 strbuf_addch(&onebuf, '"');
 756                                 one = onebuf.buf;
 757                         }
 758                         printf("%s -> ", one);
 759                         strbuf_release(&onebuf);
 760                 }
 761                 one = quote_path(it->string, -1, &onebuf, s->prefix);
 762                 if (*one != '"' && strchr(one, ' ') != NULL) {
 763                         putchar('"');
 764                         strbuf_addch(&onebuf, '"');
 765                         one = onebuf.buf;
 766                 }
 767                 printf("%s\n", one);
 768                 strbuf_release(&onebuf);
 769         }
 770 }
 771
 772 static void wt_shortstatus_other(int null_termination, struct string_list_item *it,
 773                                  struct wt_status *s, const char *sign)
 774 {
 775         if (null_termination) {
 776                 fprintf(stdout, "%s %s%c", sign, it->string, 0);
 777         } else {
 778                 struct strbuf onebuf = STRBUF_INIT;
 779                 const char *one;
 780                 one = quote_path(it->string, -1, &onebuf, s->prefix);
 781                 color_fprintf(s->fp, color(WT_STATUS_UNTRACKED, s), "%s", sign);
 782                 printf(" %s\n", one);
 783                 strbuf_release(&onebuf);
 784         }
 785 }
 786
 787 static void wt_shortstatus_print_tracking(struct wt_status *s)
 788 {
 789         struct branch *branch;
 790         const char *header_color = color(WT_STATUS_HEADER, s);
 791         const char *branch_color_local = color(WT_STATUS_LOCAL_BRANCH, s);
 792         const char *branch_color_remote = color(WT_STATUS_REMOTE_BRANCH, s);
 793
 794         const char *base;
 795         const char *branch_name;
 796         int num_ours, num_theirs;
 797
 798         color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "## ");
 799
 800         if (!s->branch)
 801                 return;
 802         branch_name = s->branch;
 803
 804         if (!prefixcmp(branch_name, "refs/heads/"))
 805                 branch_name += 11;
 806         else if (!strcmp(branch_name, "HEAD")) {
 807                 branch_name = "HEAD (no branch)";
 808                 branch_color_local = color(WT_STATUS_NOBRANCH, s);
 809         }
 810
 811         branch = branch_get(s->branch + 11);
 812         if (s->is_initial)
 813                 color_fprintf(s->fp, header_color, "Initial commit on ");
 814         if (!stat_tracking_info(branch, &num_ours, &num_theirs)) {
 815                 color_fprintf_ln(s->fp, branch_color_local,
 816                         "%s", branch_name);
 817                 return;
 818         }
 819
 820         base = branch->merge[0]->dst;
 821         base = shorten_unambiguous_ref(base, 0);
 822         color_fprintf(s->fp, branch_color_local, "%s", branch_name);
 823         color_fprintf(s->fp, header_color, "...");
 824         color_fprintf(s->fp, branch_color_remote, "%s", base);
 825
 826         color_fprintf(s->fp, header_color, " [");
 827         if (!num_ours) {
 828                 color_fprintf(s->fp, header_color, "behind ");
 829                 color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
 830         } else if (!num_theirs) {
 831                 color_fprintf(s->fp, header_color, "ahead ");
 832                 color_fprintf(s->fp, branch_color_local, "%d", num_ours);
 833         } else {
 834                 color_fprintf(s->fp, header_color, "ahead ");
 835                 color_fprintf(s->fp, branch_color_local, "%d", num_ours);
 836                 color_fprintf(s->fp, header_color, ", behind ");
 837                 color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
 838         }
 839
 840         color_fprintf_ln(s->fp, header_color, "]");
 841 }
 842
 843 void wt_shortstatus_print(struct wt_status *s, int null_termination, int show_branch)
 844 {
 845         int i;
 846
 847         if (show_branch)
 848                 wt_shortstatus_print_tracking(s);
 849
 850         for (i = 0; i < s->change.nr; i++) {
 851                 struct wt_status_change_data *d;
 852                 struct string_list_item *it;
 853
 854                 it = &(s->change.items[i]);
 855                 d = it->util;
 856                 if (d->stagemask)
 857                         wt_shortstatus_unmerged(null_termination, it, s);
 858                 else
 859                         wt_shortstatus_status(null_termination, it, s);
 860         }
 861         for (i = 0; i < s->untracked.nr; i++) {
 862                 struct string_list_item *it;
 863
 864                 it = &(s->untracked.items[i]);
 865                 wt_shortstatus_other(null_termination, it, s, "??");
 866         }
 867         for (i = 0; i < s->ignored.nr; i++) {
 868                 struct string_list_item *it;
 869
 870                 it = &(s->ignored.items[i]);
 871                 wt_shortstatus_other(null_termination, it, s, "!!");
 872         }
 873 }
 874
 875 void wt_porcelain_print(struct wt_status *s, int null_termination)
 876 {
 877         s->use_color = 0;
 878         s->relative_paths = 0;
 879         s->prefix = NULL;
 880         wt_shortstatus_print(s, null_termination, 0);
 881 }