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                     match_pathspec(s->pathspec, ent->name, ent->len, 0, NULL))
 395                         string_list_insert(&s->untracked, ent->name);
 396                 free(ent);
 397         }
 398
 399         if (s->show_ignored_files) {
 400                 dir.nr = 0;
 401                 dir.flags = DIR_SHOW_IGNORED | DIR_SHOW_OTHER_DIRECTORIES;
 402                 fill_directory(&dir, s->pathspec);
 403                 for (i = 0; i < dir.nr; i++) {
 404                         struct dir_entry *ent = dir.entries[i];
 405                         if (cache_name_is_other(ent->name, ent->len) &&
 406                             match_pathspec(s->pathspec, ent->name, ent->len, 0, NULL))
 407                                 string_list_insert(&s->ignored, ent->name);
 408                         free(ent);
 409                 }
 410         }
 411
 412         free(dir.entries);
 413 }
 414
 415 void wt_status_collect(struct wt_status *s)
 416 {
 417         wt_status_collect_changes_worktree(s);
 418
 419         if (s->is_initial)
 420                 wt_status_collect_changes_initial(s);
 421         else
 422                 wt_status_collect_changes_index(s);
 423         wt_status_collect_untracked(s);
 424 }
 425
 426 static void wt_status_print_unmerged(struct wt_status *s)
 427 {
 428         int shown_header = 0;
 429         int i;
 430
 431         for (i = 0; i < s->change.nr; i++) {
 432                 struct wt_status_change_data *d;
 433                 struct string_list_item *it;
 434                 it = &(s->change.items[i]);
 435                 d = it->util;
 436                 if (!d->stagemask)
 437                         continue;
 438                 if (!shown_header) {
 439                         wt_status_print_unmerged_header(s);
 440                         shown_header = 1;
 441                 }
 442                 wt_status_print_unmerged_data(s, it);
 443         }
 444         if (shown_header)
 445                 wt_status_print_trailer(s);
 446
 447 }
 448
 449 static void wt_status_print_updated(struct wt_status *s)
 450 {
 451         int shown_header = 0;
 452         int i;
 453
 454         for (i = 0; i < s->change.nr; i++) {
 455                 struct wt_status_change_data *d;
 456                 struct string_list_item *it;
 457                 it = &(s->change.items[i]);
 458                 d = it->util;
 459                 if (!d->index_status ||
 460                     d->index_status == DIFF_STATUS_UNMERGED)
 461                         continue;
 462                 if (!shown_header) {
 463                         wt_status_print_cached_header(s);
 464                         s->commitable = 1;
 465                         shown_header = 1;
 466                 }
 467                 wt_status_print_change_data(s, WT_STATUS_UPDATED, it);
 468         }
 469         if (shown_header)
 470                 wt_status_print_trailer(s);
 471 }
 472
 473 /*
 474  * -1 : has delete
 475  *  0 : no change
 476  *  1 : some change but no delete
 477  */
 478 static int wt_status_check_worktree_changes(struct wt_status *s,
 479                                              int *dirty_submodules)
 480 {
 481         int i;
 482         int changes = 0;
 483
 484         *dirty_submodules = 0;
 485
 486         for (i = 0; i < s->change.nr; i++) {
 487                 struct wt_status_change_data *d;
 488                 d = s->change.items[i].util;
 489                 if (!d->worktree_status ||
 490                     d->worktree_status == DIFF_STATUS_UNMERGED)
 491                         continue;
 492                 if (!changes)
 493                         changes = 1;
 494                 if (d->dirty_submodule)
 495                         *dirty_submodules = 1;
 496                 if (d->worktree_status == DIFF_STATUS_DELETED)
 497                         changes = -1;
 498         }
 499         return changes;
 500 }
 501
 502 static void wt_status_print_changed(struct wt_status *s)
 503 {
 504         int i, dirty_submodules;
 505         int worktree_changes = wt_status_check_worktree_changes(s, &dirty_submodules);
 506
 507         if (!worktree_changes)
 508                 return;
 509
 510         wt_status_print_dirty_header(s, worktree_changes < 0, dirty_submodules);
 511
 512         for (i = 0; i < s->change.nr; i++) {
 513                 struct wt_status_change_data *d;
 514                 struct string_list_item *it;
 515                 it = &(s->change.items[i]);
 516                 d = it->util;
 517                 if (!d->worktree_status ||
 518                     d->worktree_status == DIFF_STATUS_UNMERGED)
 519                         continue;
 520                 wt_status_print_change_data(s, WT_STATUS_CHANGED, it);
 521         }
 522         wt_status_print_trailer(s);
 523 }
 524
 525 static void wt_status_print_submodule_summary(struct wt_status *s, int uncommitted)
 526 {
 527         struct child_process sm_summary;
 528         char summary_limit[64];
 529         char index[PATH_MAX];
 530         const char *env[] = { NULL, NULL };
 531         const char *argv[8];
 532
 533         env[0] =        index;
 534         argv[0] =       "submodule";
 535         argv[1] =       "summary";
 536         argv[2] =       uncommitted ? "--files" : "--cached";
 537         argv[3] =       "--for-status";
 538         argv[4] =       "--summary-limit";
 539         argv[5] =       summary_limit;
 540         argv[6] =       uncommitted ? NULL : (s->amend ? "HEAD^" : "HEAD");
 541         argv[7] =       NULL;
 542
 543         sprintf(summary_limit, "%d", s->submodule_summary);
 544         snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", s->index_file);
 545
 546         memset(&sm_summary, 0, sizeof(sm_summary));
 547         sm_summary.argv = argv;
 548         sm_summary.env = env;
 549         sm_summary.git_cmd = 1;
 550         sm_summary.no_stdin = 1;
 551         fflush(s->fp);
 552         sm_summary.out = dup(fileno(s->fp));    /* run_command closes it */
 553         run_command(&sm_summary);
 554 }
 555
 556 static void wt_status_print_other(struct wt_status *s,
 557                                   struct string_list *l,
 558                                   const char *what,
 559                                   const char *how)
 560 {
 561         int i;
 562         struct strbuf buf = STRBUF_INIT;
 563
 564         if (!s->untracked.nr)
 565                 return;
 566
 567         wt_status_print_other_header(s, what, how);
 568
 569         for (i = 0; i < l->nr; i++) {
 570                 struct string_list_item *it;
 571                 it = &(l->items[i]);
 572                 color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "#\t");
 573                 color_fprintf_ln(s->fp, color(WT_STATUS_UNTRACKED, s), "%s",
 574                                  quote_path(it->string, strlen(it->string),
 575                                             &buf, s->prefix));
 576         }
 577         strbuf_release(&buf);
 578 }
 579
 580 static void wt_status_print_verbose(struct wt_status *s)
 581 {
 582         struct rev_info rev;
 583         struct setup_revision_opt opt;
 584
 585         init_revisions(&rev, NULL);
 586         DIFF_OPT_SET(&rev.diffopt, ALLOW_TEXTCONV);
 587
 588         memset(&opt, 0, sizeof(opt));
 589         opt.def = s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference;
 590         setup_revisions(0, NULL, &rev, &opt);
 591
 592         rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
 593         rev.diffopt.detect_rename = 1;
 594         rev.diffopt.file = s->fp;
 595         rev.diffopt.close_file = 0;
 596         /*
 597          * If we're not going to stdout, then we definitely don't
 598          * want color, since we are going to the commit message
 599          * file (and even the "auto" setting won't work, since it
 600          * will have checked isatty on stdout).
 601          */
 602         if (s->fp != stdout)
 603                 DIFF_OPT_CLR(&rev.diffopt, COLOR_DIFF);
 604         run_diff_index(&rev, 1);
 605 }
 606
 607 static void wt_status_print_tracking(struct wt_status *s)
 608 {
 609         struct strbuf sb = STRBUF_INIT;
 610         const char *cp, *ep;
 611         struct branch *branch;
 612
 613         assert(s->branch && !s->is_initial);
 614         if (prefixcmp(s->branch, "refs/heads/"))
 615                 return;
 616         branch = branch_get(s->branch + 11);
 617         if (!format_tracking_info(branch, &sb))
 618                 return;
 619
 620         for (cp = sb.buf; (ep = strchr(cp, '\n')) != NULL; cp = ep + 1)
 621                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s),
 622                                  "# %.*s", (int)(ep - cp), cp);
 623         color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "#");
 624 }
 625
 626 void wt_status_print(struct wt_status *s)
 627 {
 628         const char *branch_color = color(WT_STATUS_HEADER, s);
 629
 630         if (s->branch) {
 631                 const char *on_what = "On branch ";
 632                 const char *branch_name = s->branch;
 633                 if (!prefixcmp(branch_name, "refs/heads/"))
 634                         branch_name += 11;
 635                 else if (!strcmp(branch_name, "HEAD")) {
 636                         branch_name = "";
 637                         branch_color = color(WT_STATUS_NOBRANCH, s);
 638                         on_what = "Not currently on any branch.";
 639                 }
 640                 color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "# ");
 641                 color_fprintf_ln(s->fp, branch_color, "%s%s", on_what, branch_name);
 642                 if (!s->is_initial)
 643                         wt_status_print_tracking(s);
 644         }
 645
 646         if (s->is_initial) {
 647                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "#");
 648                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "# Initial commit");
 649                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "#");
 650         }
 651
 652         wt_status_print_updated(s);
 653         wt_status_print_unmerged(s);
 654         wt_status_print_changed(s);
 655         if (s->submodule_summary &&
 656             (!s->ignore_submodule_arg ||
 657              strcmp(s->ignore_submodule_arg, "all"))) {
 658                 wt_status_print_submodule_summary(s, 0);  /* staged */
 659                 wt_status_print_submodule_summary(s, 1);  /* unstaged */
 660         }
 661         if (s->show_untracked_files) {
 662                 wt_status_print_other(s, &s->untracked, "Untracked", "add");
 663                 if (s->show_ignored_files)
 664                         wt_status_print_other(s, &s->ignored, "Ignored", "add -f");
 665         } else if (s->commitable)
 666                 fprintf(s->fp, "# Untracked files not listed%s\n",
 667                         advice_status_hints
 668                         ? " (use -u option to show untracked files)" : "");
 669
 670         if (s->verbose)
 671                 wt_status_print_verbose(s);
 672         if (!s->commitable) {
 673                 if (s->amend)
 674                         fprintf(s->fp, "# No changes\n");
 675                 else if (s->nowarn)
 676                         ; /* nothing */
 677                 else if (s->workdir_dirty)
 678                         printf("no changes added to commit%s\n",
 679                                 advice_status_hints
 680                                 ? " (use \"git add\" and/or \"git commit -a\")" : "");
 681                 else if (s->untracked.nr)
 682                         printf("nothing added to commit but untracked files present%s\n",
 683                                 advice_status_hints
 684                                 ? " (use \"git add\" to track)" : "");
 685                 else if (s->is_initial)
 686                         printf("nothing to commit%s\n", advice_status_hints
 687                                 ? " (create/copy files and use \"git add\" to track)" : "");
 688                 else if (!s->show_untracked_files)
 689                         printf("nothing to commit%s\n", advice_status_hints
 690                                 ? " (use -u to show untracked files)" : "");
 691                 else
 692                         printf("nothing to commit%s\n", advice_status_hints
 693                                 ? " (working directory clean)" : "");
 694         }
 695 }
 696
 697 static void wt_shortstatus_unmerged(int null_termination, struct string_list_item *it,
 698                            struct wt_status *s)
 699 {
 700         struct wt_status_change_data *d = it->util;
 701         const char *how = "??";
 702
 703         switch (d->stagemask) {
 704         case 1: how = "DD"; break; /* both deleted */
 705         case 2: how = "AU"; break; /* added by us */
 706         case 3: how = "UD"; break; /* deleted by them */
 707         case 4: how = "UA"; break; /* added by them */
 708         case 5: how = "DU"; break; /* deleted by us */
 709         case 6: how = "AA"; break; /* both added */
 710         case 7: how = "UU"; break; /* both modified */
 711         }
 712         color_fprintf(s->fp, color(WT_STATUS_UNMERGED, s), "%s", how);
 713         if (null_termination) {
 714                 fprintf(stdout, " %s%c", it->string, 0);
 715         } else {
 716                 struct strbuf onebuf = STRBUF_INIT;
 717                 const char *one;
 718                 one = quote_path(it->string, -1, &onebuf, s->prefix);
 719                 printf(" %s\n", one);
 720                 strbuf_release(&onebuf);
 721         }
 722 }
 723
 724 static void wt_shortstatus_status(int null_termination, struct string_list_item *it,
 725                          struct wt_status *s)
 726 {
 727         struct wt_status_change_data *d = it->util;
 728
 729         if (d->index_status)
 730                 color_fprintf(s->fp, color(WT_STATUS_UPDATED, s), "%c", d->index_status);
 731         else
 732                 putchar(' ');
 733         if (d->worktree_status)
 734                 color_fprintf(s->fp, color(WT_STATUS_CHANGED, s), "%c", d->worktree_status);
 735         else
 736                 putchar(' ');
 737         putchar(' ');
 738         if (null_termination) {
 739                 fprintf(stdout, "%s%c", it->string, 0);
 740                 if (d->head_path)
 741                         fprintf(stdout, "%s%c", d->head_path, 0);
 742         } else {
 743                 struct strbuf onebuf = STRBUF_INIT;
 744                 const char *one;
 745                 if (d->head_path) {
 746                         one = quote_path(d->head_path, -1, &onebuf, s->prefix);
 747                         if (*one != '"' && strchr(one, ' ') != NULL) {
 748                                 putchar('"');
 749                                 strbuf_addch(&onebuf, '"');
 750                                 one = onebuf.buf;
 751                         }
 752                         printf("%s -> ", one);
 753                         strbuf_release(&onebuf);
 754                 }
 755                 one = quote_path(it->string, -1, &onebuf, s->prefix);
 756                 if (*one != '"' && strchr(one, ' ') != NULL) {
 757                         putchar('"');
 758                         strbuf_addch(&onebuf, '"');
 759                         one = onebuf.buf;
 760                 }
 761                 printf("%s\n", one);
 762                 strbuf_release(&onebuf);
 763         }
 764 }
 765
 766 static void wt_shortstatus_other(int null_termination, struct string_list_item *it,
 767                                  struct wt_status *s, const char *sign)
 768 {
 769         if (null_termination) {
 770                 fprintf(stdout, "%s %s%c", sign, it->string, 0);
 771         } else {
 772                 struct strbuf onebuf = STRBUF_INIT;
 773                 const char *one;
 774                 one = quote_path(it->string, -1, &onebuf, s->prefix);
 775                 color_fprintf(s->fp, color(WT_STATUS_UNTRACKED, s), "%s", sign);
 776                 printf(" %s\n", one);
 777                 strbuf_release(&onebuf);
 778         }
 779 }
 780
 781 static void wt_shortstatus_print_tracking(struct wt_status *s)
 782 {
 783         struct branch *branch;
 784         const char *header_color = color(WT_STATUS_HEADER, s);
 785         const char *branch_color_local = color(WT_STATUS_LOCAL_BRANCH, s);
 786         const char *branch_color_remote = color(WT_STATUS_REMOTE_BRANCH, s);
 787
 788         const char *base;
 789         const char *branch_name;
 790         int num_ours, num_theirs;
 791
 792         color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "## ");
 793
 794         if (!s->branch)
 795                 return;
 796         branch_name = s->branch;
 797
 798         if (!prefixcmp(branch_name, "refs/heads/"))
 799                 branch_name += 11;
 800         else if (!strcmp(branch_name, "HEAD")) {
 801                 branch_name = "HEAD (no branch)";
 802                 branch_color_local = color(WT_STATUS_NOBRANCH, s);
 803         }
 804
 805         branch = branch_get(s->branch + 11);
 806         if (s->is_initial)
 807                 color_fprintf(s->fp, header_color, "Initial commit on ");
 808         if (!stat_tracking_info(branch, &num_ours, &num_theirs)) {
 809                 color_fprintf_ln(s->fp, branch_color_local,
 810                         "%s", branch_name);
 811                 return;
 812         }
 813
 814         base = branch->merge[0]->dst;
 815         base = shorten_unambiguous_ref(base, 0);
 816         color_fprintf(s->fp, branch_color_local, "%s", branch_name);
 817         color_fprintf(s->fp, header_color, "...");
 818         color_fprintf(s->fp, branch_color_remote, "%s", base);
 819
 820         color_fprintf(s->fp, header_color, " [");
 821         if (!num_ours) {
 822                 color_fprintf(s->fp, header_color, "behind ");
 823                 color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
 824         } else if (!num_theirs) {
 825                 color_fprintf(s->fp, header_color, "ahead ");
 826                 color_fprintf(s->fp, branch_color_local, "%d", num_ours);
 827         } else {
 828                 color_fprintf(s->fp, header_color, "ahead ");
 829                 color_fprintf(s->fp, branch_color_local, "%d", num_ours);
 830                 color_fprintf(s->fp, header_color, ", behind ");
 831                 color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
 832         }
 833
 834         color_fprintf_ln(s->fp, header_color, "]");
 835 }
 836
 837 void wt_shortstatus_print(struct wt_status *s, int null_termination, int show_branch)
 838 {
 839         int i;
 840
 841         if (show_branch)
 842                 wt_shortstatus_print_tracking(s);
 843
 844         for (i = 0; i < s->change.nr; i++) {
 845                 struct wt_status_change_data *d;
 846                 struct string_list_item *it;
 847
 848                 it = &(s->change.items[i]);
 849                 d = it->util;
 850                 if (d->stagemask)
 851                         wt_shortstatus_unmerged(null_termination, it, s);
 852                 else
 853                         wt_shortstatus_status(null_termination, it, s);
 854         }
 855         for (i = 0; i < s->untracked.nr; i++) {
 856                 struct string_list_item *it;
 857
 858                 it = &(s->untracked.items[i]);
 859                 wt_shortstatus_other(null_termination, it, s, "??");
 860         }
 861         for (i = 0; i < s->ignored.nr; i++) {
 862                 struct string_list_item *it;
 863
 864                 it = &(s->ignored.items[i]);
 865                 wt_shortstatus_other(null_termination, it, s, "!!");
 866         }
 867 }
 868
 869 void wt_porcelain_print(struct wt_status *s, int null_termination)
 870 {
 871         s->use_color = 0;
 872         s->relative_paths = 0;
 873         s->prefix = NULL;
 874         wt_shortstatus_print(s, null_termination, 0);
 875 }