git.oblomov.eu Git - git/blob - wt-status.c

   1 #include "cache.h"
   2 #include "pathspec.h"
   3 #include "wt-status.h"
   4 #include "object.h"
   5 #include "dir.h"
   6 #include "commit.h"
   7 #include "diff.h"
   8 #include "revision.h"
   9 #include "diffcore.h"
  10 #include "quote.h"
  11 #include "run-command.h"
  12 #include "argv-array.h"
  13 #include "remote.h"
  14 #include "refs.h"
  15 #include "submodule.h"
  16 #include "column.h"
  17 #include "strbuf.h"
  18
  19 static char default_wt_status_colors[][COLOR_MAXLEN] = {
  20         GIT_COLOR_NORMAL, /* WT_STATUS_HEADER */
  21         GIT_COLOR_GREEN,  /* WT_STATUS_UPDATED */
  22         GIT_COLOR_RED,    /* WT_STATUS_CHANGED */
  23         GIT_COLOR_RED,    /* WT_STATUS_UNTRACKED */
  24         GIT_COLOR_RED,    /* WT_STATUS_NOBRANCH */
  25         GIT_COLOR_RED,    /* WT_STATUS_UNMERGED */
  26         GIT_COLOR_GREEN,  /* WT_STATUS_LOCAL_BRANCH */
  27         GIT_COLOR_RED,    /* WT_STATUS_REMOTE_BRANCH */
  28         GIT_COLOR_NIL,    /* WT_STATUS_ONBRANCH */
  29 };
  30
  31 static const char *color(int slot, struct wt_status *s)
  32 {
  33         const char *c = "";
  34         if (want_color(s->use_color))
  35                 c = s->color_palette[slot];
  36         if (slot == WT_STATUS_ONBRANCH && color_is_nil(c))
  37                 c = s->color_palette[WT_STATUS_HEADER];
  38         return c;
  39 }
  40
  41 static void status_vprintf(struct wt_status *s, int at_bol, const char *color,
  42                 const char *fmt, va_list ap, const char *trail)
  43 {
  44         struct strbuf sb = STRBUF_INIT;
  45         struct strbuf linebuf = STRBUF_INIT;
  46         const char *line, *eol;
  47
  48         strbuf_vaddf(&sb, fmt, ap);
  49         if (!sb.len) {
  50                 if (s->display_comment_prefix) {
  51                         strbuf_addch(&sb, comment_line_char);
  52                         if (!trail)
  53                                 strbuf_addch(&sb, ' ');
  54                 }
  55                 color_print_strbuf(s->fp, color, &sb);
  56                 if (trail)
  57                         fprintf(s->fp, "%s", trail);
  58                 strbuf_release(&sb);
  59                 return;
  60         }
  61         for (line = sb.buf; *line; line = eol + 1) {
  62                 eol = strchr(line, '\n');
  63
  64                 strbuf_reset(&linebuf);
  65                 if (at_bol && s->display_comment_prefix) {
  66                         strbuf_addch(&linebuf, comment_line_char);
  67                         if (*line != '\n' && *line != '\t')
  68                                 strbuf_addch(&linebuf, ' ');
  69                 }
  70                 if (eol)
  71                         strbuf_add(&linebuf, line, eol - line);
  72                 else
  73                         strbuf_addstr(&linebuf, line);
  74                 color_print_strbuf(s->fp, color, &linebuf);
  75                 if (eol)
  76                         fprintf(s->fp, "\n");
  77                 else
  78                         break;
  79                 at_bol = 1;
  80         }
  81         if (trail)
  82                 fprintf(s->fp, "%s", trail);
  83         strbuf_release(&linebuf);
  84         strbuf_release(&sb);
  85 }
  86
  87 void status_printf_ln(struct wt_status *s, const char *color,
  88                         const char *fmt, ...)
  89 {
  90         va_list ap;
  91
  92         va_start(ap, fmt);
  93         status_vprintf(s, 1, color, fmt, ap, "\n");
  94         va_end(ap);
  95 }
  96
  97 void status_printf(struct wt_status *s, const char *color,
  98                         const char *fmt, ...)
  99 {
 100         va_list ap;
 101
 102         va_start(ap, fmt);
 103         status_vprintf(s, 1, color, fmt, ap, NULL);
 104         va_end(ap);
 105 }
 106
 107 static void status_printf_more(struct wt_status *s, const char *color,
 108                                const char *fmt, ...)
 109 {
 110         va_list ap;
 111
 112         va_start(ap, fmt);
 113         status_vprintf(s, 0, color, fmt, ap, NULL);
 114         va_end(ap);
 115 }
 116
 117 void wt_status_prepare(struct wt_status *s)
 118 {
 119         unsigned char sha1[20];
 120
 121         memset(s, 0, sizeof(*s));
 122         memcpy(s->color_palette, default_wt_status_colors,
 123                sizeof(default_wt_status_colors));
 124         s->show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
 125         s->use_color = -1;
 126         s->relative_paths = 1;
 127         s->branch = resolve_refdup("HEAD", sha1, 0, NULL);
 128         s->reference = "HEAD";
 129         s->fp = stdout;
 130         s->index_file = get_index_file();
 131         s->change.strdup_strings = 1;
 132         s->untracked.strdup_strings = 1;
 133         s->ignored.strdup_strings = 1;
 134         s->show_branch = -1;  /* unspecified */
 135         s->display_comment_prefix = 0;
 136 }
 137
 138 static void wt_status_print_unmerged_header(struct wt_status *s)
 139 {
 140         int i;
 141         int del_mod_conflict = 0;
 142         int both_deleted = 0;
 143         int not_deleted = 0;
 144         const char *c = color(WT_STATUS_HEADER, s);
 145
 146         status_printf_ln(s, c, _("Unmerged paths:"));
 147
 148         for (i = 0; i < s->change.nr; i++) {
 149                 struct string_list_item *it = &(s->change.items[i]);
 150                 struct wt_status_change_data *d = it->util;
 151
 152                 switch (d->stagemask) {
 153                 case 0:
 154                         break;
 155                 case 1:
 156                         both_deleted = 1;
 157                         break;
 158                 case 3:
 159                 case 5:
 160                         del_mod_conflict = 1;
 161                         break;
 162                 default:
 163                         not_deleted = 1;
 164                         break;
 165                 }
 166         }
 167
 168         if (!s->hints)
 169                 return;
 170         if (s->whence != FROM_COMMIT)
 171                 ;
 172         else if (!s->is_initial)
 173                 status_printf_ln(s, c, _("  (use \"git reset %s <file>...\" to unstage)"), s->reference);
 174         else
 175                 status_printf_ln(s, c, _("  (use \"git rm --cached <file>...\" to unstage)"));
 176
 177         if (!both_deleted) {
 178                 if (!del_mod_conflict)
 179                         status_printf_ln(s, c, _("  (use \"git add <file>...\" to mark resolution)"));
 180                 else
 181                         status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" as appropriate to mark resolution)"));
 182         } else if (!del_mod_conflict && !not_deleted) {
 183                 status_printf_ln(s, c, _("  (use \"git rm <file>...\" to mark resolution)"));
 184         } else {
 185                 status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" as appropriate to mark resolution)"));
 186         }
 187         status_printf_ln(s, c, "");
 188 }
 189
 190 static void wt_status_print_cached_header(struct wt_status *s)
 191 {
 192         const char *c = color(WT_STATUS_HEADER, s);
 193
 194         status_printf_ln(s, c, _("Changes to be committed:"));
 195         if (!s->hints)
 196                 return;
 197         if (s->whence != FROM_COMMIT)
 198                 ; /* NEEDSWORK: use "git reset --unresolve"??? */
 199         else if (!s->is_initial)
 200                 status_printf_ln(s, c, _("  (use \"git reset %s <file>...\" to unstage)"), s->reference);
 201         else
 202                 status_printf_ln(s, c, _("  (use \"git rm --cached <file>...\" to unstage)"));
 203         status_printf_ln(s, c, "");
 204 }
 205
 206 static void wt_status_print_dirty_header(struct wt_status *s,
 207                                          int has_deleted,
 208                                          int has_dirty_submodules)
 209 {
 210         const char *c = color(WT_STATUS_HEADER, s);
 211
 212         status_printf_ln(s, c, _("Changes not staged for commit:"));
 213         if (!s->hints)
 214                 return;
 215         if (!has_deleted)
 216                 status_printf_ln(s, c, _("  (use \"git add <file>...\" to update what will be committed)"));
 217         else
 218                 status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" to update what will be committed)"));
 219         status_printf_ln(s, c, _("  (use \"git checkout -- <file>...\" to discard changes in working directory)"));
 220         if (has_dirty_submodules)
 221                 status_printf_ln(s, c, _("  (commit or discard the untracked or modified content in submodules)"));
 222         status_printf_ln(s, c, "");
 223 }
 224
 225 static void wt_status_print_other_header(struct wt_status *s,
 226                                          const char *what,
 227                                          const char *how)
 228 {
 229         const char *c = color(WT_STATUS_HEADER, s);
 230         status_printf_ln(s, c, "%s:", what);
 231         if (!s->hints)
 232                 return;
 233         status_printf_ln(s, c, _("  (use \"git %s <file>...\" to include in what will be committed)"), how);
 234         status_printf_ln(s, c, "");
 235 }
 236
 237 static void wt_status_print_trailer(struct wt_status *s)
 238 {
 239         status_printf_ln(s, color(WT_STATUS_HEADER, s), "");
 240 }
 241
 242 #define quote_path quote_path_relative
 243
 244 static void wt_status_print_unmerged_data(struct wt_status *s,
 245                                           struct string_list_item *it)
 246 {
 247         const char *c = color(WT_STATUS_UNMERGED, s);
 248         struct wt_status_change_data *d = it->util;
 249         struct strbuf onebuf = STRBUF_INIT;
 250         const char *one, *how = _("bug");
 251
 252         one = quote_path(it->string, s->prefix, &onebuf);
 253         status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 254         switch (d->stagemask) {
 255         case 1: how = _("both deleted:"); break;
 256         case 2: how = _("added by us:"); break;
 257         case 3: how = _("deleted by them:"); break;
 258         case 4: how = _("added by them:"); break;
 259         case 5: how = _("deleted by us:"); break;
 260         case 6: how = _("both added:"); break;
 261         case 7: how = _("both modified:"); break;
 262         }
 263         status_printf_more(s, c, "%-20s%s\n", how, one);
 264         strbuf_release(&onebuf);
 265 }
 266
 267 static void wt_status_print_change_data(struct wt_status *s,
 268                                         int change_type,
 269                                         struct string_list_item *it)
 270 {
 271         struct wt_status_change_data *d = it->util;
 272         const char *c = color(change_type, s);
 273         int status;
 274         char *one_name;
 275         char *two_name;
 276         const char *one, *two;
 277         struct strbuf onebuf = STRBUF_INIT, twobuf = STRBUF_INIT;
 278         struct strbuf extra = STRBUF_INIT;
 279
 280         one_name = two_name = it->string;
 281         switch (change_type) {
 282         case WT_STATUS_UPDATED:
 283                 status = d->index_status;
 284                 if (d->head_path)
 285                         one_name = d->head_path;
 286                 break;
 287         case WT_STATUS_CHANGED:
 288                 if (d->new_submodule_commits || d->dirty_submodule) {
 289                         strbuf_addstr(&extra, " (");
 290                         if (d->new_submodule_commits)
 291                                 strbuf_addf(&extra, _("new commits, "));
 292                         if (d->dirty_submodule & DIRTY_SUBMODULE_MODIFIED)
 293                                 strbuf_addf(&extra, _("modified content, "));
 294                         if (d->dirty_submodule & DIRTY_SUBMODULE_UNTRACKED)
 295                                 strbuf_addf(&extra, _("untracked content, "));
 296                         strbuf_setlen(&extra, extra.len - 2);
 297                         strbuf_addch(&extra, ')');
 298                 }
 299                 status = d->worktree_status;
 300                 break;
 301         default:
 302                 die("BUG: unhandled change_type %d in wt_status_print_change_data",
 303                     change_type);
 304         }
 305
 306         one = quote_path(one_name, s->prefix, &onebuf);
 307         two = quote_path(two_name, s->prefix, &twobuf);
 308
 309         status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 310         switch (status) {
 311         case DIFF_STATUS_ADDED:
 312                 status_printf_more(s, c, _("new file:   %s"), one);
 313                 break;
 314         case DIFF_STATUS_COPIED:
 315                 status_printf_more(s, c, _("copied:     %s -> %s"), one, two);
 316                 break;
 317         case DIFF_STATUS_DELETED:
 318                 status_printf_more(s, c, _("deleted:    %s"), one);
 319                 break;
 320         case DIFF_STATUS_MODIFIED:
 321                 status_printf_more(s, c, _("modified:   %s"), one);
 322                 break;
 323         case DIFF_STATUS_RENAMED:
 324                 status_printf_more(s, c, _("renamed:    %s -> %s"), one, two);
 325                 break;
 326         case DIFF_STATUS_TYPE_CHANGED:
 327                 status_printf_more(s, c, _("typechange: %s"), one);
 328                 break;
 329         case DIFF_STATUS_UNKNOWN:
 330                 status_printf_more(s, c, _("unknown:    %s"), one);
 331                 break;
 332         case DIFF_STATUS_UNMERGED:
 333                 status_printf_more(s, c, _("unmerged:   %s"), one);
 334                 break;
 335         default:
 336                 die(_("bug: unhandled diff status %c"), status);
 337         }
 338         if (extra.len) {
 339                 status_printf_more(s, color(WT_STATUS_HEADER, s), "%s", extra.buf);
 340                 strbuf_release(&extra);
 341         }
 342         status_printf_more(s, GIT_COLOR_NORMAL, "\n");
 343         strbuf_release(&onebuf);
 344         strbuf_release(&twobuf);
 345 }
 346
 347 static void wt_status_collect_changed_cb(struct diff_queue_struct *q,
 348                                          struct diff_options *options,
 349                                          void *data)
 350 {
 351         struct wt_status *s = data;
 352         int i;
 353
 354         if (!q->nr)
 355                 return;
 356         s->workdir_dirty = 1;
 357         for (i = 0; i < q->nr; i++) {
 358                 struct diff_filepair *p;
 359                 struct string_list_item *it;
 360                 struct wt_status_change_data *d;
 361
 362                 p = q->queue[i];
 363                 it = string_list_insert(&s->change, p->one->path);
 364                 d = it->util;
 365                 if (!d) {
 366                         d = xcalloc(1, sizeof(*d));
 367                         it->util = d;
 368                 }
 369                 if (!d->worktree_status)
 370                         d->worktree_status = p->status;
 371                 d->dirty_submodule = p->two->dirty_submodule;
 372                 if (S_ISGITLINK(p->two->mode))
 373                         d->new_submodule_commits = !!hashcmp(p->one->sha1, p->two->sha1);
 374         }
 375 }
 376
 377 static int unmerged_mask(const char *path)
 378 {
 379         int pos, mask;
 380         const struct cache_entry *ce;
 381
 382         pos = cache_name_pos(path, strlen(path));
 383         if (0 <= pos)
 384                 return 0;
 385
 386         mask = 0;
 387         pos = -pos-1;
 388         while (pos < active_nr) {
 389                 ce = active_cache[pos++];
 390                 if (strcmp(ce->name, path) || !ce_stage(ce))
 391                         break;
 392                 mask |= (1 << (ce_stage(ce) - 1));
 393         }
 394         return mask;
 395 }
 396
 397 static void wt_status_collect_updated_cb(struct diff_queue_struct *q,
 398                                          struct diff_options *options,
 399                                          void *data)
 400 {
 401         struct wt_status *s = data;
 402         int i;
 403
 404         for (i = 0; i < q->nr; i++) {
 405                 struct diff_filepair *p;
 406                 struct string_list_item *it;
 407                 struct wt_status_change_data *d;
 408
 409                 p = q->queue[i];
 410                 it = string_list_insert(&s->change, p->two->path);
 411                 d = it->util;
 412                 if (!d) {
 413                         d = xcalloc(1, sizeof(*d));
 414                         it->util = d;
 415                 }
 416                 if (!d->index_status)
 417                         d->index_status = p->status;
 418                 switch (p->status) {
 419                 case DIFF_STATUS_COPIED:
 420                 case DIFF_STATUS_RENAMED:
 421                         d->head_path = xstrdup(p->one->path);
 422                         break;
 423                 case DIFF_STATUS_UNMERGED:
 424                         d->stagemask = unmerged_mask(p->two->path);
 425                         break;
 426                 }
 427         }
 428 }
 429
 430 static void wt_status_collect_changes_worktree(struct wt_status *s)
 431 {
 432         struct rev_info rev;
 433
 434         init_revisions(&rev, NULL);
 435         setup_revisions(0, NULL, &rev, NULL);
 436         rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 437         DIFF_OPT_SET(&rev.diffopt, DIRTY_SUBMODULES);
 438         if (!s->show_untracked_files)
 439                 DIFF_OPT_SET(&rev.diffopt, IGNORE_UNTRACKED_IN_SUBMODULES);
 440         if (s->ignore_submodule_arg) {
 441                 DIFF_OPT_SET(&rev.diffopt, OVERRIDE_SUBMODULE_CONFIG);
 442                 handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
 443         }
 444         rev.diffopt.format_callback = wt_status_collect_changed_cb;
 445         rev.diffopt.format_callback_data = s;
 446         copy_pathspec(&rev.prune_data, &s->pathspec);
 447         run_diff_files(&rev, 0);
 448 }
 449
 450 static void wt_status_collect_changes_index(struct wt_status *s)
 451 {
 452         struct rev_info rev;
 453         struct setup_revision_opt opt;
 454
 455         init_revisions(&rev, NULL);
 456         memset(&opt, 0, sizeof(opt));
 457         opt.def = s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference;
 458         setup_revisions(0, NULL, &rev, &opt);
 459
 460         if (s->ignore_submodule_arg) {
 461                 DIFF_OPT_SET(&rev.diffopt, OVERRIDE_SUBMODULE_CONFIG);
 462                 handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
 463         }
 464
 465         rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 466         rev.diffopt.format_callback = wt_status_collect_updated_cb;
 467         rev.diffopt.format_callback_data = s;
 468         rev.diffopt.detect_rename = 1;
 469         rev.diffopt.rename_limit = 200;
 470         rev.diffopt.break_opt = 0;
 471         copy_pathspec(&rev.prune_data, &s->pathspec);
 472         run_diff_index(&rev, 1);
 473 }
 474
 475 static void wt_status_collect_changes_initial(struct wt_status *s)
 476 {
 477         int i;
 478
 479         for (i = 0; i < active_nr; i++) {
 480                 struct string_list_item *it;
 481                 struct wt_status_change_data *d;
 482                 const struct cache_entry *ce = active_cache[i];
 483
 484                 if (!ce_path_match(ce, &s->pathspec))
 485                         continue;
 486                 it = string_list_insert(&s->change, ce->name);
 487                 d = it->util;
 488                 if (!d) {
 489                         d = xcalloc(1, sizeof(*d));
 490                         it->util = d;
 491                 }
 492                 if (ce_stage(ce)) {
 493                         d->index_status = DIFF_STATUS_UNMERGED;
 494                         d->stagemask |= (1 << (ce_stage(ce) - 1));
 495                 }
 496                 else
 497                         d->index_status = DIFF_STATUS_ADDED;
 498         }
 499 }
 500
 501 static void wt_status_collect_untracked(struct wt_status *s)
 502 {
 503         int i;
 504         struct dir_struct dir;
 505         struct timeval t_begin;
 506
 507         if (!s->show_untracked_files)
 508                 return;
 509
 510         if (advice_status_u_option)
 511                 gettimeofday(&t_begin, NULL);
 512
 513         memset(&dir, 0, sizeof(dir));
 514         if (s->show_untracked_files != SHOW_ALL_UNTRACKED_FILES)
 515                 dir.flags |=
 516                         DIR_SHOW_OTHER_DIRECTORIES | DIR_HIDE_EMPTY_DIRECTORIES;
 517         if (s->show_ignored_files)
 518                 dir.flags |= DIR_SHOW_IGNORED_TOO;
 519         setup_standard_excludes(&dir);
 520
 521         fill_directory(&dir, &s->pathspec);
 522
 523         for (i = 0; i < dir.nr; i++) {
 524                 struct dir_entry *ent = dir.entries[i];
 525                 if (cache_name_is_other(ent->name, ent->len) &&
 526                     match_pathspec_depth(&s->pathspec, ent->name, ent->len, 0, NULL))
 527                         string_list_insert(&s->untracked, ent->name);
 528                 free(ent);
 529         }
 530
 531         for (i = 0; i < dir.ignored_nr; i++) {
 532                 struct dir_entry *ent = dir.ignored[i];
 533                 if (cache_name_is_other(ent->name, ent->len) &&
 534                     match_pathspec_depth(&s->pathspec, ent->name, ent->len, 0, NULL))
 535                         string_list_insert(&s->ignored, ent->name);
 536                 free(ent);
 537         }
 538
 539         free(dir.entries);
 540         free(dir.ignored);
 541         clear_directory(&dir);
 542
 543         if (advice_status_u_option) {
 544                 struct timeval t_end;
 545                 gettimeofday(&t_end, NULL);
 546                 s->untracked_in_ms =
 547                         (uint64_t)t_end.tv_sec * 1000 + t_end.tv_usec / 1000 -
 548                         ((uint64_t)t_begin.tv_sec * 1000 + t_begin.tv_usec / 1000);
 549         }
 550 }
 551
 552 void wt_status_collect(struct wt_status *s)
 553 {
 554         wt_status_collect_changes_worktree(s);
 555
 556         if (s->is_initial)
 557                 wt_status_collect_changes_initial(s);
 558         else
 559                 wt_status_collect_changes_index(s);
 560         wt_status_collect_untracked(s);
 561 }
 562
 563 static void wt_status_print_unmerged(struct wt_status *s)
 564 {
 565         int shown_header = 0;
 566         int i;
 567
 568         for (i = 0; i < s->change.nr; i++) {
 569                 struct wt_status_change_data *d;
 570                 struct string_list_item *it;
 571                 it = &(s->change.items[i]);
 572                 d = it->util;
 573                 if (!d->stagemask)
 574                         continue;
 575                 if (!shown_header) {
 576                         wt_status_print_unmerged_header(s);
 577                         shown_header = 1;
 578                 }
 579                 wt_status_print_unmerged_data(s, it);
 580         }
 581         if (shown_header)
 582                 wt_status_print_trailer(s);
 583
 584 }
 585
 586 static void wt_status_print_updated(struct wt_status *s)
 587 {
 588         int shown_header = 0;
 589         int i;
 590
 591         for (i = 0; i < s->change.nr; i++) {
 592                 struct wt_status_change_data *d;
 593                 struct string_list_item *it;
 594                 it = &(s->change.items[i]);
 595                 d = it->util;
 596                 if (!d->index_status ||
 597                     d->index_status == DIFF_STATUS_UNMERGED)
 598                         continue;
 599                 if (!shown_header) {
 600                         wt_status_print_cached_header(s);
 601                         s->commitable = 1;
 602                         shown_header = 1;
 603                 }
 604                 wt_status_print_change_data(s, WT_STATUS_UPDATED, it);
 605         }
 606         if (shown_header)
 607                 wt_status_print_trailer(s);
 608 }
 609
 610 /*
 611  * -1 : has delete
 612  *  0 : no change
 613  *  1 : some change but no delete
 614  */
 615 static int wt_status_check_worktree_changes(struct wt_status *s,
 616                                              int *dirty_submodules)
 617 {
 618         int i;
 619         int changes = 0;
 620
 621         *dirty_submodules = 0;
 622
 623         for (i = 0; i < s->change.nr; i++) {
 624                 struct wt_status_change_data *d;
 625                 d = s->change.items[i].util;
 626                 if (!d->worktree_status ||
 627                     d->worktree_status == DIFF_STATUS_UNMERGED)
 628                         continue;
 629                 if (!changes)
 630                         changes = 1;
 631                 if (d->dirty_submodule)
 632                         *dirty_submodules = 1;
 633                 if (d->worktree_status == DIFF_STATUS_DELETED)
 634                         changes = -1;
 635         }
 636         return changes;
 637 }
 638
 639 static void wt_status_print_changed(struct wt_status *s)
 640 {
 641         int i, dirty_submodules;
 642         int worktree_changes = wt_status_check_worktree_changes(s, &dirty_submodules);
 643
 644         if (!worktree_changes)
 645                 return;
 646
 647         wt_status_print_dirty_header(s, worktree_changes < 0, dirty_submodules);
 648
 649         for (i = 0; i < s->change.nr; i++) {
 650                 struct wt_status_change_data *d;
 651                 struct string_list_item *it;
 652                 it = &(s->change.items[i]);
 653                 d = it->util;
 654                 if (!d->worktree_status ||
 655                     d->worktree_status == DIFF_STATUS_UNMERGED)
 656                         continue;
 657                 wt_status_print_change_data(s, WT_STATUS_CHANGED, it);
 658         }
 659         wt_status_print_trailer(s);
 660 }
 661
 662 static void wt_status_print_submodule_summary(struct wt_status *s, int uncommitted)
 663 {
 664         struct child_process sm_summary;
 665         char summary_limit[64];
 666         char index[PATH_MAX];
 667         const char *env[] = { NULL, NULL };
 668         struct argv_array argv = ARGV_ARRAY_INIT;
 669         struct strbuf cmd_stdout = STRBUF_INIT;
 670         struct strbuf summary = STRBUF_INIT;
 671         char *summary_content;
 672         size_t len;
 673
 674         sprintf(summary_limit, "%d", s->submodule_summary);
 675         snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", s->index_file);
 676
 677         env[0] = index;
 678         argv_array_push(&argv, "submodule");
 679         argv_array_push(&argv, "summary");
 680         argv_array_push(&argv, uncommitted ? "--files" : "--cached");
 681         argv_array_push(&argv, "--for-status");
 682         argv_array_push(&argv, "--summary-limit");
 683         argv_array_push(&argv, summary_limit);
 684         if (!uncommitted)
 685                 argv_array_push(&argv, s->amend ? "HEAD^" : "HEAD");
 686
 687         memset(&sm_summary, 0, sizeof(sm_summary));
 688         sm_summary.argv = argv.argv;
 689         sm_summary.env = env;
 690         sm_summary.git_cmd = 1;
 691         sm_summary.no_stdin = 1;
 692         fflush(s->fp);
 693         sm_summary.out = -1;
 694
 695         run_command(&sm_summary);
 696         argv_array_clear(&argv);
 697
 698         len = strbuf_read(&cmd_stdout, sm_summary.out, 1024);
 699
 700         /* prepend header, only if there's an actual output */
 701         if (len) {
 702                 if (uncommitted)
 703                         strbuf_addstr(&summary, _("Submodules changed but not updated:"));
 704                 else
 705                         strbuf_addstr(&summary, _("Submodule changes to be committed:"));
 706                 strbuf_addstr(&summary, "\n\n");
 707         }
 708         strbuf_addbuf(&summary, &cmd_stdout);
 709         strbuf_release(&cmd_stdout);
 710
 711         if (s->display_comment_prefix) {
 712                 summary_content = strbuf_detach(&summary, &len);
 713                 strbuf_add_commented_lines(&summary, summary_content, len);
 714                 free(summary_content);
 715         }
 716
 717         fputs(summary.buf, s->fp);
 718         strbuf_release(&summary);
 719 }
 720
 721 static void wt_status_print_other(struct wt_status *s,
 722                                   struct string_list *l,
 723                                   const char *what,
 724                                   const char *how)
 725 {
 726         int i;
 727         struct strbuf buf = STRBUF_INIT;
 728         static struct string_list output = STRING_LIST_INIT_DUP;
 729         struct column_options copts;
 730
 731         if (!l->nr)
 732                 return;
 733
 734         wt_status_print_other_header(s, what, how);
 735
 736         for (i = 0; i < l->nr; i++) {
 737                 struct string_list_item *it;
 738                 const char *path;
 739                 it = &(l->items[i]);
 740                 path = quote_path(it->string, s->prefix, &buf);
 741                 if (column_active(s->colopts)) {
 742                         string_list_append(&output, path);
 743                         continue;
 744                 }
 745                 status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 746                 status_printf_more(s, color(WT_STATUS_UNTRACKED, s),
 747                                    "%s\n", path);
 748         }
 749
 750         strbuf_release(&buf);
 751         if (!column_active(s->colopts))
 752                 goto conclude;
 753
 754         strbuf_addf(&buf, "%s%s\t%s",
 755                     color(WT_STATUS_HEADER, s),
 756                     s->display_comment_prefix ? "#" : "",
 757                     color(WT_STATUS_UNTRACKED, s));
 758         memset(&copts, 0, sizeof(copts));
 759         copts.padding = 1;
 760         copts.indent = buf.buf;
 761         if (want_color(s->use_color))
 762                 copts.nl = GIT_COLOR_RESET "\n";
 763         print_columns(&output, s->colopts, &copts);
 764         string_list_clear(&output, 0);
 765         strbuf_release(&buf);
 766 conclude:
 767         status_printf_ln(s, GIT_COLOR_NORMAL, "");
 768 }
 769
 770 static void wt_status_print_verbose(struct wt_status *s)
 771 {
 772         struct rev_info rev;
 773         struct setup_revision_opt opt;
 774
 775         init_revisions(&rev, NULL);
 776         DIFF_OPT_SET(&rev.diffopt, ALLOW_TEXTCONV);
 777
 778         memset(&opt, 0, sizeof(opt));
 779         opt.def = s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference;
 780         setup_revisions(0, NULL, &rev, &opt);
 781
 782         rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
 783         rev.diffopt.detect_rename = 1;
 784         rev.diffopt.file = s->fp;
 785         rev.diffopt.close_file = 0;
 786         /*
 787          * If we're not going to stdout, then we definitely don't
 788          * want color, since we are going to the commit message
 789          * file (and even the "auto" setting won't work, since it
 790          * will have checked isatty on stdout).
 791          */
 792         if (s->fp != stdout)
 793                 rev.diffopt.use_color = 0;
 794         run_diff_index(&rev, 1);
 795 }
 796
 797 static void wt_status_print_tracking(struct wt_status *s)
 798 {
 799         struct strbuf sb = STRBUF_INIT;
 800         const char *cp, *ep;
 801         struct branch *branch;
 802         char comment_line_string[3];
 803         int i;
 804
 805         assert(s->branch && !s->is_initial);
 806         if (prefixcmp(s->branch, "refs/heads/"))
 807                 return;
 808         branch = branch_get(s->branch + 11);
 809         if (!format_tracking_info(branch, &sb))
 810                 return;
 811
 812         i = 0;
 813         if (s->display_comment_prefix) {
 814                 comment_line_string[i++] = comment_line_char;
 815                 comment_line_string[i++] = ' ';
 816         }
 817         comment_line_string[i] = '\0';
 818
 819         for (cp = sb.buf; (ep = strchr(cp, '\n')) != NULL; cp = ep + 1)
 820                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s),
 821                                  "%s%.*s", comment_line_string,
 822                                  (int)(ep - cp), cp);
 823         if (s->display_comment_prefix)
 824                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "%c",
 825                                  comment_line_char);
 826         else
 827                 fprintf_ln(s->fp, "");
 828 }
 829
 830 static int has_unmerged(struct wt_status *s)
 831 {
 832         int i;
 833
 834         for (i = 0; i < s->change.nr; i++) {
 835                 struct wt_status_change_data *d;
 836                 d = s->change.items[i].util;
 837                 if (d->stagemask)
 838                         return 1;
 839         }
 840         return 0;
 841 }
 842
 843 static void show_merge_in_progress(struct wt_status *s,
 844                                 struct wt_status_state *state,
 845                                 const char *color)
 846 {
 847         if (has_unmerged(s)) {
 848                 status_printf_ln(s, color, _("You have unmerged paths."));
 849                 if (s->hints)
 850                         status_printf_ln(s, color,
 851                                 _("  (fix conflicts and run \"git commit\")"));
 852         } else {
 853                 status_printf_ln(s, color,
 854                         _("All conflicts fixed but you are still merging."));
 855                 if (s->hints)
 856                         status_printf_ln(s, color,
 857                                 _("  (use \"git commit\" to conclude merge)"));
 858         }
 859         wt_status_print_trailer(s);
 860 }
 861
 862 static void show_am_in_progress(struct wt_status *s,
 863                                 struct wt_status_state *state,
 864                                 const char *color)
 865 {
 866         status_printf_ln(s, color,
 867                 _("You are in the middle of an am session."));
 868         if (state->am_empty_patch)
 869                 status_printf_ln(s, color,
 870                         _("The current patch is empty."));
 871         if (s->hints) {
 872                 if (!state->am_empty_patch)
 873                         status_printf_ln(s, color,
 874                                 _("  (fix conflicts and then run \"git am --continue\")"));
 875                 status_printf_ln(s, color,
 876                         _("  (use \"git am --skip\" to skip this patch)"));
 877                 status_printf_ln(s, color,
 878                         _("  (use \"git am --abort\" to restore the original branch)"));
 879         }
 880         wt_status_print_trailer(s);
 881 }
 882
 883 static char *read_line_from_git_path(const char *filename)
 884 {
 885         struct strbuf buf = STRBUF_INIT;
 886         FILE *fp = fopen(git_path("%s", filename), "r");
 887         if (!fp) {
 888                 strbuf_release(&buf);
 889                 return NULL;
 890         }
 891         strbuf_getline(&buf, fp, '\n');
 892         if (!fclose(fp)) {
 893                 return strbuf_detach(&buf, NULL);
 894         } else {
 895                 strbuf_release(&buf);
 896                 return NULL;
 897         }
 898 }
 899
 900 static int split_commit_in_progress(struct wt_status *s)
 901 {
 902         int split_in_progress = 0;
 903         char *head = read_line_from_git_path("HEAD");
 904         char *orig_head = read_line_from_git_path("ORIG_HEAD");
 905         char *rebase_amend = read_line_from_git_path("rebase-merge/amend");
 906         char *rebase_orig_head = read_line_from_git_path("rebase-merge/orig-head");
 907
 908         if (!head || !orig_head || !rebase_amend || !rebase_orig_head ||
 909             !s->branch || strcmp(s->branch, "HEAD"))
 910                 return split_in_progress;
 911
 912         if (!strcmp(rebase_amend, rebase_orig_head)) {
 913                 if (strcmp(head, rebase_amend))
 914                         split_in_progress = 1;
 915         } else if (strcmp(orig_head, rebase_orig_head)) {
 916                 split_in_progress = 1;
 917         }
 918
 919         if (!s->amend && !s->nowarn && !s->workdir_dirty)
 920                 split_in_progress = 0;
 921
 922         free(head);
 923         free(orig_head);
 924         free(rebase_amend);
 925         free(rebase_orig_head);
 926         return split_in_progress;
 927 }
 928
 929 static void show_rebase_in_progress(struct wt_status *s,
 930                                 struct wt_status_state *state,
 931                                 const char *color)
 932 {
 933         struct stat st;
 934
 935         if (has_unmerged(s)) {
 936                 if (state->branch)
 937                         status_printf_ln(s, color,
 938                                          _("You are currently rebasing branch '%s' on '%s'."),
 939                                          state->branch,
 940                                          state->onto);
 941                 else
 942                         status_printf_ln(s, color,
 943                                          _("You are currently rebasing."));
 944                 if (s->hints) {
 945                         status_printf_ln(s, color,
 946                                 _("  (fix conflicts and then run \"git rebase --continue\")"));
 947                         status_printf_ln(s, color,
 948                                 _("  (use \"git rebase --skip\" to skip this patch)"));
 949                         status_printf_ln(s, color,
 950                                 _("  (use \"git rebase --abort\" to check out the original branch)"));
 951                 }
 952         } else if (state->rebase_in_progress || !stat(git_path("MERGE_MSG"), &st)) {
 953                 if (state->branch)
 954                         status_printf_ln(s, color,
 955                                          _("You are currently rebasing branch '%s' on '%s'."),
 956                                          state->branch,
 957                                          state->onto);
 958                 else
 959                         status_printf_ln(s, color,
 960                                          _("You are currently rebasing."));
 961                 if (s->hints)
 962                         status_printf_ln(s, color,
 963                                 _("  (all conflicts fixed: run \"git rebase --continue\")"));
 964         } else if (split_commit_in_progress(s)) {
 965                 if (state->branch)
 966                         status_printf_ln(s, color,
 967                                          _("You are currently splitting a commit while rebasing branch '%s' on '%s'."),
 968                                          state->branch,
 969                                          state->onto);
 970                 else
 971                         status_printf_ln(s, color,
 972                                          _("You are currently splitting a commit during a rebase."));
 973                 if (s->hints)
 974                         status_printf_ln(s, color,
 975                                 _("  (Once your working directory is clean, run \"git rebase --continue\")"));
 976         } else {
 977                 if (state->branch)
 978                         status_printf_ln(s, color,
 979                                          _("You are currently editing a commit while rebasing branch '%s' on '%s'."),
 980                                          state->branch,
 981                                          state->onto);
 982                 else
 983                         status_printf_ln(s, color,
 984                                          _("You are currently editing a commit during a rebase."));
 985                 if (s->hints && !s->amend) {
 986                         status_printf_ln(s, color,
 987                                 _("  (use \"git commit --amend\" to amend the current commit)"));
 988                         status_printf_ln(s, color,
 989                                 _("  (use \"git rebase --continue\" once you are satisfied with your changes)"));
 990                 }
 991         }
 992         wt_status_print_trailer(s);
 993 }
 994
 995 static void show_cherry_pick_in_progress(struct wt_status *s,
 996                                         struct wt_status_state *state,
 997                                         const char *color)
 998 {
 999         status_printf_ln(s, color, _("You are currently cherry-picking."));
1000         if (s->hints) {
1001                 if (has_unmerged(s))
1002                         status_printf_ln(s, color,
1003                                 _("  (fix conflicts and run \"git cherry-pick --continue\")"));
1004                 else
1005                         status_printf_ln(s, color,
1006                                 _("  (all conflicts fixed: run \"git cherry-pick --continue\")"));
1007                 status_printf_ln(s, color,
1008                         _("  (use \"git cherry-pick --abort\" to cancel the cherry-pick operation)"));
1009         }
1010         wt_status_print_trailer(s);
1011 }
1012
1013 static void show_revert_in_progress(struct wt_status *s,
1014                                         struct wt_status_state *state,
1015                                         const char *color)
1016 {
1017         status_printf_ln(s, color, _("You are currently reverting commit %s."),
1018                          find_unique_abbrev(state->revert_head_sha1, DEFAULT_ABBREV));
1019         if (s->hints) {
1020                 if (has_unmerged(s))
1021                         status_printf_ln(s, color,
1022                                 _("  (fix conflicts and run \"git revert --continue\")"));
1023                 else
1024                         status_printf_ln(s, color,
1025                                 _("  (all conflicts fixed: run \"git revert --continue\")"));
1026                 status_printf_ln(s, color,
1027                         _("  (use \"git revert --abort\" to cancel the revert operation)"));
1028         }
1029         wt_status_print_trailer(s);
1030 }
1031
1032 static void show_bisect_in_progress(struct wt_status *s,
1033                                 struct wt_status_state *state,
1034                                 const char *color)
1035 {
1036         if (state->branch)
1037                 status_printf_ln(s, color,
1038                                  _("You are currently bisecting, started from branch '%s'."),
1039                                  state->branch);
1040         else
1041                 status_printf_ln(s, color,
1042                                  _("You are currently bisecting."));
1043         if (s->hints)
1044                 status_printf_ln(s, color,
1045                         _("  (use \"git bisect reset\" to get back to the original branch)"));
1046         wt_status_print_trailer(s);
1047 }
1048
1049 /*
1050  * Extract branch information from rebase/bisect
1051  */
1052 static char *read_and_strip_branch(const char *path)
1053 {
1054         struct strbuf sb = STRBUF_INIT;
1055         unsigned char sha1[20];
1056
1057         if (strbuf_read_file(&sb, git_path("%s", path), 0) <= 0)
1058                 goto got_nothing;
1059
1060         while (&sb.len && sb.buf[sb.len - 1] == '\n')
1061                 strbuf_setlen(&sb, sb.len - 1);
1062         if (!sb.len)
1063                 goto got_nothing;
1064         if (!prefixcmp(sb.buf, "refs/heads/"))
1065                 strbuf_remove(&sb,0, strlen("refs/heads/"));
1066         else if (!prefixcmp(sb.buf, "refs/"))
1067                 ;
1068         else if (!get_sha1_hex(sb.buf, sha1)) {
1069                 const char *abbrev;
1070                 abbrev = find_unique_abbrev(sha1, DEFAULT_ABBREV);
1071                 strbuf_reset(&sb);
1072                 strbuf_addstr(&sb, abbrev);
1073         } else if (!strcmp(sb.buf, "detached HEAD")) /* rebase */
1074                 goto got_nothing;
1075         else                    /* bisect */
1076                 ;
1077         return strbuf_detach(&sb, NULL);
1078
1079 got_nothing:
1080         strbuf_release(&sb);
1081         return NULL;
1082 }
1083
1084 struct grab_1st_switch_cbdata {
1085         struct strbuf buf;
1086         unsigned char nsha1[20];
1087 };
1088
1089 static int grab_1st_switch(unsigned char *osha1, unsigned char *nsha1,
1090                            const char *email, unsigned long timestamp, int tz,
1091                            const char *message, void *cb_data)
1092 {
1093         struct grab_1st_switch_cbdata *cb = cb_data;
1094         const char *target = NULL, *end;
1095
1096         if (prefixcmp(message, "checkout: moving from "))
1097                 return 0;
1098         message += strlen("checkout: moving from ");
1099         target = strstr(message, " to ");
1100         if (!target)
1101                 return 0;
1102         target += strlen(" to ");
1103         strbuf_reset(&cb->buf);
1104         hashcpy(cb->nsha1, nsha1);
1105         for (end = target; *end && *end != '\n'; end++)
1106                 ;
1107         strbuf_add(&cb->buf, target, end - target);
1108         return 1;
1109 }
1110
1111 static void wt_status_get_detached_from(struct wt_status_state *state)
1112 {
1113         struct grab_1st_switch_cbdata cb;
1114         struct commit *commit;
1115         unsigned char sha1[20];
1116         char *ref = NULL;
1117
1118         strbuf_init(&cb.buf, 0);
1119         if (for_each_reflog_ent_reverse("HEAD", grab_1st_switch, &cb) <= 0) {
1120                 strbuf_release(&cb.buf);
1121                 return;
1122         }
1123
1124         if (dwim_ref(cb.buf.buf, cb.buf.len, sha1, &ref) == 1 &&
1125             /* sha1 is a commit? match without further lookup */
1126             (!hashcmp(cb.nsha1, sha1) ||
1127              /* perhaps sha1 is a tag, try to dereference to a commit */
1128              ((commit = lookup_commit_reference_gently(sha1, 1)) != NULL &&
1129               !hashcmp(cb.nsha1, commit->object.sha1)))) {
1130                 int ofs;
1131                 if (!prefixcmp(ref, "refs/tags/"))
1132                         ofs = strlen("refs/tags/");
1133                 else if (!prefixcmp(ref, "refs/remotes/"))
1134                         ofs = strlen("refs/remotes/");
1135                 else
1136                         ofs = 0;
1137                 state->detached_from = xstrdup(ref + ofs);
1138         } else
1139                 state->detached_from =
1140                         xstrdup(find_unique_abbrev(cb.nsha1, DEFAULT_ABBREV));
1141         hashcpy(state->detached_sha1, cb.nsha1);
1142
1143         free(ref);
1144         strbuf_release(&cb.buf);
1145 }
1146
1147 void wt_status_get_state(struct wt_status_state *state,
1148                          int get_detached_from)
1149 {
1150         struct stat st;
1151         unsigned char sha1[20];
1152
1153         if (!stat(git_path("MERGE_HEAD"), &st)) {
1154                 state->merge_in_progress = 1;
1155         } else if (!stat(git_path("rebase-apply"), &st)) {
1156                 if (!stat(git_path("rebase-apply/applying"), &st)) {
1157                         state->am_in_progress = 1;
1158                         if (!stat(git_path("rebase-apply/patch"), &st) && !st.st_size)
1159                                 state->am_empty_patch = 1;
1160                 } else {
1161                         state->rebase_in_progress = 1;
1162                         state->branch = read_and_strip_branch("rebase-apply/head-name");
1163                         state->onto = read_and_strip_branch("rebase-apply/onto");
1164                 }
1165         } else if (!stat(git_path("rebase-merge"), &st)) {
1166                 if (!stat(git_path("rebase-merge/interactive"), &st))
1167                         state->rebase_interactive_in_progress = 1;
1168                 else
1169                         state->rebase_in_progress = 1;
1170                 state->branch = read_and_strip_branch("rebase-merge/head-name");
1171                 state->onto = read_and_strip_branch("rebase-merge/onto");
1172         } else if (!stat(git_path("CHERRY_PICK_HEAD"), &st)) {
1173                 state->cherry_pick_in_progress = 1;
1174         }
1175         if (!stat(git_path("BISECT_LOG"), &st)) {
1176                 state->bisect_in_progress = 1;
1177                 state->branch = read_and_strip_branch("BISECT_START");
1178         }
1179         if (!stat(git_path("REVERT_HEAD"), &st) &&
1180             !get_sha1("REVERT_HEAD", sha1)) {
1181                 state->revert_in_progress = 1;
1182                 hashcpy(state->revert_head_sha1, sha1);
1183         }
1184
1185         if (get_detached_from)
1186                 wt_status_get_detached_from(state);
1187 }
1188
1189 static void wt_status_print_state(struct wt_status *s,
1190                                   struct wt_status_state *state)
1191 {
1192         const char *state_color = color(WT_STATUS_HEADER, s);
1193         if (state->merge_in_progress)
1194                 show_merge_in_progress(s, state, state_color);
1195         else if (state->am_in_progress)
1196                 show_am_in_progress(s, state, state_color);
1197         else if (state->rebase_in_progress || state->rebase_interactive_in_progress)
1198                 show_rebase_in_progress(s, state, state_color);
1199         else if (state->cherry_pick_in_progress)
1200                 show_cherry_pick_in_progress(s, state, state_color);
1201         else if (state->revert_in_progress)
1202                 show_revert_in_progress(s, state, state_color);
1203         if (state->bisect_in_progress)
1204                 show_bisect_in_progress(s, state, state_color);
1205 }
1206
1207 void wt_status_print(struct wt_status *s)
1208 {
1209         const char *branch_color = color(WT_STATUS_ONBRANCH, s);
1210         const char *branch_status_color = color(WT_STATUS_HEADER, s);
1211         struct wt_status_state state;
1212
1213         memset(&state, 0, sizeof(state));
1214         wt_status_get_state(&state,
1215                             s->branch && !strcmp(s->branch, "HEAD"));
1216
1217         if (s->branch) {
1218                 const char *on_what = _("On branch ");
1219                 const char *branch_name = s->branch;
1220                 if (!prefixcmp(branch_name, "refs/heads/"))
1221                         branch_name += 11;
1222                 else if (!strcmp(branch_name, "HEAD")) {
1223                         branch_status_color = color(WT_STATUS_NOBRANCH, s);
1224                         if (state.rebase_in_progress || state.rebase_interactive_in_progress) {
1225                                 on_what = _("rebase in progress; onto ");
1226                                 branch_name = state.onto;
1227                         } else if (state.detached_from) {
1228                                 unsigned char sha1[20];
1229                                 branch_name = state.detached_from;
1230                                 if (!get_sha1("HEAD", sha1) &&
1231                                     !hashcmp(sha1, state.detached_sha1))
1232                                         on_what = _("HEAD detached at ");
1233                                 else
1234                                         on_what = _("HEAD detached from ");
1235                         } else {
1236                                 branch_name = "";
1237                                 on_what = _("Not currently on any branch.");
1238                         }
1239                 }
1240                 status_printf(s, color(WT_STATUS_HEADER, s), "");
1241                 status_printf_more(s, branch_status_color, "%s", on_what);
1242                 status_printf_more(s, branch_color, "%s\n", branch_name);
1243                 if (!s->is_initial)
1244                         wt_status_print_tracking(s);
1245         }
1246
1247         wt_status_print_state(s, &state);
1248         free(state.branch);
1249         free(state.onto);
1250         free(state.detached_from);
1251
1252         if (s->is_initial) {
1253                 status_printf_ln(s, color(WT_STATUS_HEADER, s), "");
1254                 status_printf_ln(s, color(WT_STATUS_HEADER, s), _("Initial commit"));
1255                 status_printf_ln(s, color(WT_STATUS_HEADER, s), "");
1256         }
1257
1258         wt_status_print_updated(s);
1259         wt_status_print_unmerged(s);
1260         wt_status_print_changed(s);
1261         if (s->submodule_summary &&
1262             (!s->ignore_submodule_arg ||
1263              strcmp(s->ignore_submodule_arg, "all"))) {
1264                 wt_status_print_submodule_summary(s, 0);  /* staged */
1265                 wt_status_print_submodule_summary(s, 1);  /* unstaged */
1266         }
1267         if (s->show_untracked_files) {
1268                 wt_status_print_other(s, &s->untracked, _("Untracked files"), "add");
1269                 if (s->show_ignored_files)
1270                         wt_status_print_other(s, &s->ignored, _("Ignored files"), "add -f");
1271                 if (advice_status_u_option && 2000 < s->untracked_in_ms) {
1272                         status_printf_ln(s, GIT_COLOR_NORMAL, "");
1273                         status_printf_ln(s, GIT_COLOR_NORMAL,
1274                                          _("It took %.2f seconds to enumerate untracked files. 'status -uno'\n"
1275                                            "may speed it up, but you have to be careful not to forget to add\n"
1276                                            "new files yourself (see 'git help status')."),
1277                                          s->untracked_in_ms / 1000.0);
1278                 }
1279         } else if (s->commitable)
1280                 status_printf_ln(s, GIT_COLOR_NORMAL, _("Untracked files not listed%s"),
1281                         s->hints
1282                         ? _(" (use -u option to show untracked files)") : "");
1283
1284         if (s->verbose)
1285                 wt_status_print_verbose(s);
1286         if (!s->commitable) {
1287                 if (s->amend)
1288                         status_printf_ln(s, GIT_COLOR_NORMAL, _("No changes"));
1289                 else if (s->nowarn)
1290                         ; /* nothing */
1291                 else if (s->workdir_dirty) {
1292                         if (s->hints)
1293                                 printf(_("no changes added to commit "
1294                                          "(use \"git add\" and/or \"git commit -a\")\n"));
1295                         else
1296                                 printf(_("no changes added to commit\n"));
1297                 } else if (s->untracked.nr) {
1298                         if (s->hints)
1299                                 printf(_("nothing added to commit but untracked files "
1300                                          "present (use \"git add\" to track)\n"));
1301                         else
1302                                 printf(_("nothing added to commit but untracked files present\n"));
1303                 } else if (s->is_initial) {
1304                         if (s->hints)
1305                                 printf(_("nothing to commit (create/copy files "
1306                                          "and use \"git add\" to track)\n"));
1307                         else
1308                                 printf(_("nothing to commit\n"));
1309                 } else if (!s->show_untracked_files) {
1310                         if (s->hints)
1311                                 printf(_("nothing to commit (use -u to show untracked files)\n"));
1312                         else
1313                                 printf(_("nothing to commit\n"));
1314                 } else
1315                         printf(_("nothing to commit, working directory clean\n"));
1316         }
1317 }
1318
1319 static void wt_shortstatus_unmerged(struct string_list_item *it,
1320                            struct wt_status *s)
1321 {
1322         struct wt_status_change_data *d = it->util;
1323         const char *how = "??";
1324
1325         switch (d->stagemask) {
1326         case 1: how = "DD"; break; /* both deleted */
1327         case 2: how = "AU"; break; /* added by us */
1328         case 3: how = "UD"; break; /* deleted by them */
1329         case 4: how = "UA"; break; /* added by them */
1330         case 5: how = "DU"; break; /* deleted by us */
1331         case 6: how = "AA"; break; /* both added */
1332         case 7: how = "UU"; break; /* both modified */
1333         }
1334         color_fprintf(s->fp, color(WT_STATUS_UNMERGED, s), "%s", how);
1335         if (s->null_termination) {
1336                 fprintf(stdout, " %s%c", it->string, 0);
1337         } else {
1338                 struct strbuf onebuf = STRBUF_INIT;
1339                 const char *one;
1340                 one = quote_path(it->string, s->prefix, &onebuf);
1341                 printf(" %s\n", one);
1342                 strbuf_release(&onebuf);
1343         }
1344 }
1345
1346 static void wt_shortstatus_status(struct string_list_item *it,
1347                          struct wt_status *s)
1348 {
1349         struct wt_status_change_data *d = it->util;
1350
1351         if (d->index_status)
1352                 color_fprintf(s->fp, color(WT_STATUS_UPDATED, s), "%c", d->index_status);
1353         else
1354                 putchar(' ');
1355         if (d->worktree_status)
1356                 color_fprintf(s->fp, color(WT_STATUS_CHANGED, s), "%c", d->worktree_status);
1357         else
1358                 putchar(' ');
1359         putchar(' ');
1360         if (s->null_termination) {
1361                 fprintf(stdout, "%s%c", it->string, 0);
1362                 if (d->head_path)
1363                         fprintf(stdout, "%s%c", d->head_path, 0);
1364         } else {
1365                 struct strbuf onebuf = STRBUF_INIT;
1366                 const char *one;
1367                 if (d->head_path) {
1368                         one = quote_path(d->head_path, s->prefix, &onebuf);
1369                         if (*one != '"' && strchr(one, ' ') != NULL) {
1370                                 putchar('"');
1371                                 strbuf_addch(&onebuf, '"');
1372                                 one = onebuf.buf;
1373                         }
1374                         printf("%s -> ", one);
1375                         strbuf_release(&onebuf);
1376                 }
1377                 one = quote_path(it->string, s->prefix, &onebuf);
1378                 if (*one != '"' && strchr(one, ' ') != NULL) {
1379                         putchar('"');
1380                         strbuf_addch(&onebuf, '"');
1381                         one = onebuf.buf;
1382                 }
1383                 printf("%s\n", one);
1384                 strbuf_release(&onebuf);
1385         }
1386 }
1387
1388 static void wt_shortstatus_other(struct string_list_item *it,
1389                                  struct wt_status *s, const char *sign)
1390 {
1391         if (s->null_termination) {
1392                 fprintf(stdout, "%s %s%c", sign, it->string, 0);
1393         } else {
1394                 struct strbuf onebuf = STRBUF_INIT;
1395                 const char *one;
1396                 one = quote_path(it->string, s->prefix, &onebuf);
1397                 color_fprintf(s->fp, color(WT_STATUS_UNTRACKED, s), "%s", sign);
1398                 printf(" %s\n", one);
1399                 strbuf_release(&onebuf);
1400         }
1401 }
1402
1403 static void wt_shortstatus_print_tracking(struct wt_status *s)
1404 {
1405         struct branch *branch;
1406         const char *header_color = color(WT_STATUS_HEADER, s);
1407         const char *branch_color_local = color(WT_STATUS_LOCAL_BRANCH, s);
1408         const char *branch_color_remote = color(WT_STATUS_REMOTE_BRANCH, s);
1409
1410         const char *base;
1411         const char *branch_name;
1412         int num_ours, num_theirs;
1413         int upstream_is_gone = 0;
1414
1415         color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "## ");
1416
1417         if (!s->branch)
1418                 return;
1419         branch_name = s->branch;
1420
1421         if (!prefixcmp(branch_name, "refs/heads/"))
1422                 branch_name += 11;
1423         else if (!strcmp(branch_name, "HEAD")) {
1424                 branch_name = _("HEAD (no branch)");
1425                 branch_color_local = color(WT_STATUS_NOBRANCH, s);
1426         }
1427
1428         branch = branch_get(s->branch + 11);
1429         if (s->is_initial)
1430                 color_fprintf(s->fp, header_color, _("Initial commit on "));
1431
1432         color_fprintf(s->fp, branch_color_local, "%s", branch_name);
1433
1434         switch (stat_tracking_info(branch, &num_ours, &num_theirs)) {
1435         case 0:
1436                 /* no base */
1437                 fputc(s->null_termination ? '\0' : '\n', s->fp);
1438                 return;
1439         case -1:
1440                 /* with "gone" base */
1441                 upstream_is_gone = 1;
1442                 break;
1443         default:
1444                 /* with base */
1445                 break;
1446         }
1447
1448         base = branch->merge[0]->dst;
1449         base = shorten_unambiguous_ref(base, 0);
1450         color_fprintf(s->fp, header_color, "...");
1451         color_fprintf(s->fp, branch_color_remote, "%s", base);
1452
1453         if (!upstream_is_gone && !num_ours && !num_theirs) {
1454                 fputc(s->null_termination ? '\0' : '\n', s->fp);
1455                 return;
1456         }
1457
1458         color_fprintf(s->fp, header_color, " [");
1459         if (upstream_is_gone) {
1460                 color_fprintf(s->fp, header_color, _("gone"));
1461         } else if (!num_ours) {
1462                 color_fprintf(s->fp, header_color, _("behind "));
1463                 color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
1464         } else if (!num_theirs) {
1465                 color_fprintf(s->fp, header_color, _("ahead "));
1466                 color_fprintf(s->fp, branch_color_local, "%d", num_ours);
1467         } else {
1468                 color_fprintf(s->fp, header_color, _("ahead "));
1469                 color_fprintf(s->fp, branch_color_local, "%d", num_ours);
1470                 color_fprintf(s->fp, header_color, _(", behind "));
1471                 color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
1472         }
1473
1474         color_fprintf(s->fp, header_color, "]");
1475         fputc(s->null_termination ? '\0' : '\n', s->fp);
1476 }
1477
1478 void wt_shortstatus_print(struct wt_status *s)
1479 {
1480         int i;
1481
1482         if (s->show_branch)
1483                 wt_shortstatus_print_tracking(s);
1484
1485         for (i = 0; i < s->change.nr; i++) {
1486                 struct wt_status_change_data *d;
1487                 struct string_list_item *it;
1488
1489                 it = &(s->change.items[i]);
1490                 d = it->util;
1491                 if (d->stagemask)
1492                         wt_shortstatus_unmerged(it, s);
1493                 else
1494                         wt_shortstatus_status(it, s);
1495         }
1496         for (i = 0; i < s->untracked.nr; i++) {
1497                 struct string_list_item *it;
1498
1499                 it = &(s->untracked.items[i]);
1500                 wt_shortstatus_other(it, s, "??");
1501         }
1502         for (i = 0; i < s->ignored.nr; i++) {
1503                 struct string_list_item *it;
1504
1505                 it = &(s->ignored.items[i]);
1506                 wt_shortstatus_other(it, s, "!!");
1507         }
1508 }
1509
1510 void wt_porcelain_print(struct wt_status *s)
1511 {
1512         s->use_color = 0;
1513         s->relative_paths = 0;
1514         s->prefix = NULL;
1515         wt_shortstatus_print(s);
1516 }