git.oblomov.eu Git - git/blob - 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 "strvec.h"
  12 #include "remote.h"
  13 #include "refs.h"
  14 #include "submodule.h"
  15 #include "column.h"
  16 #include "strbuf.h"
  17 #include "utf8.h"
  18 #include "worktree.h"
  19 #include "lockfile.h"
  20 #include "sequencer.h"
  21
  22 #define AB_DELAY_WARNING_IN_MS (2 * 1000)
  23
  24 static const char cut_line[] =
  25 "------------------------ >8 ------------------------\n";
  26
  27 static char default_wt_status_colors[][COLOR_MAXLEN] = {
  28         GIT_COLOR_NORMAL, /* WT_STATUS_HEADER */
  29         GIT_COLOR_GREEN,  /* WT_STATUS_UPDATED */
  30         GIT_COLOR_RED,    /* WT_STATUS_CHANGED */
  31         GIT_COLOR_RED,    /* WT_STATUS_UNTRACKED */
  32         GIT_COLOR_RED,    /* WT_STATUS_NOBRANCH */
  33         GIT_COLOR_RED,    /* WT_STATUS_UNMERGED */
  34         GIT_COLOR_GREEN,  /* WT_STATUS_LOCAL_BRANCH */
  35         GIT_COLOR_RED,    /* WT_STATUS_REMOTE_BRANCH */
  36         GIT_COLOR_NIL,    /* WT_STATUS_ONBRANCH */
  37 };
  38
  39 static const char *color(int slot, struct wt_status *s)
  40 {
  41         const char *c = "";
  42         if (want_color(s->use_color))
  43                 c = s->color_palette[slot];
  44         if (slot == WT_STATUS_ONBRANCH && color_is_nil(c))
  45                 c = s->color_palette[WT_STATUS_HEADER];
  46         return c;
  47 }
  48
  49 static void status_vprintf(struct wt_status *s, int at_bol, const char *color,
  50                 const char *fmt, va_list ap, const char *trail)
  51 {
  52         struct strbuf sb = STRBUF_INIT;
  53         struct strbuf linebuf = STRBUF_INIT;
  54         const char *line, *eol;
  55
  56         strbuf_vaddf(&sb, fmt, ap);
  57         if (!sb.len) {
  58                 if (s->display_comment_prefix) {
  59                         strbuf_addch(&sb, comment_line_char);
  60                         if (!trail)
  61                                 strbuf_addch(&sb, ' ');
  62                 }
  63                 color_print_strbuf(s->fp, color, &sb);
  64                 if (trail)
  65                         fprintf(s->fp, "%s", trail);
  66                 strbuf_release(&sb);
  67                 return;
  68         }
  69         for (line = sb.buf; *line; line = eol + 1) {
  70                 eol = strchr(line, '\n');
  71
  72                 strbuf_reset(&linebuf);
  73                 if (at_bol && s->display_comment_prefix) {
  74                         strbuf_addch(&linebuf, comment_line_char);
  75                         if (*line != '\n' && *line != '\t')
  76                                 strbuf_addch(&linebuf, ' ');
  77                 }
  78                 if (eol)
  79                         strbuf_add(&linebuf, line, eol - line);
  80                 else
  81                         strbuf_addstr(&linebuf, line);
  82                 color_print_strbuf(s->fp, color, &linebuf);
  83                 if (eol)
  84                         fprintf(s->fp, "\n");
  85                 else
  86                         break;
  87                 at_bol = 1;
  88         }
  89         if (trail)
  90                 fprintf(s->fp, "%s", trail);
  91         strbuf_release(&linebuf);
  92         strbuf_release(&sb);
  93 }
  94
  95 void status_printf_ln(struct wt_status *s, const char *color,
  96                         const char *fmt, ...)
  97 {
  98         va_list ap;
  99
 100         va_start(ap, fmt);
 101         status_vprintf(s, 1, color, fmt, ap, "\n");
 102         va_end(ap);
 103 }
 104
 105 void status_printf(struct wt_status *s, const char *color,
 106                         const char *fmt, ...)
 107 {
 108         va_list ap;
 109
 110         va_start(ap, fmt);
 111         status_vprintf(s, 1, color, fmt, ap, NULL);
 112         va_end(ap);
 113 }
 114
 115 static void status_printf_more(struct wt_status *s, const char *color,
 116                                const char *fmt, ...)
 117 {
 118         va_list ap;
 119
 120         va_start(ap, fmt);
 121         status_vprintf(s, 0, color, fmt, ap, NULL);
 122         va_end(ap);
 123 }
 124
 125 void wt_status_prepare(struct repository *r, struct wt_status *s)
 126 {
 127         memset(s, 0, sizeof(*s));
 128         s->repo = r;
 129         memcpy(s->color_palette, default_wt_status_colors,
 130                sizeof(default_wt_status_colors));
 131         s->show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
 132         s->use_color = -1;
 133         s->relative_paths = 1;
 134         s->branch = resolve_refdup("HEAD", 0, NULL, NULL);
 135         s->reference = "HEAD";
 136         s->fp = stdout;
 137         s->index_file = get_index_file();
 138         s->change.strdup_strings = 1;
 139         s->untracked.strdup_strings = 1;
 140         s->ignored.strdup_strings = 1;
 141         s->show_branch = -1;  /* unspecified */
 142         s->show_stash = 0;
 143         s->ahead_behind_flags = AHEAD_BEHIND_UNSPECIFIED;
 144         s->display_comment_prefix = 0;
 145         s->detect_rename = -1;
 146         s->rename_score = -1;
 147         s->rename_limit = -1;
 148 }
 149
 150 static void wt_longstatus_print_unmerged_header(struct wt_status *s)
 151 {
 152         int i;
 153         int del_mod_conflict = 0;
 154         int both_deleted = 0;
 155         int not_deleted = 0;
 156         const char *c = color(WT_STATUS_HEADER, s);
 157
 158         status_printf_ln(s, c, _("Unmerged paths:"));
 159
 160         for (i = 0; i < s->change.nr; i++) {
 161                 struct string_list_item *it = &(s->change.items[i]);
 162                 struct wt_status_change_data *d = it->util;
 163
 164                 switch (d->stagemask) {
 165                 case 0:
 166                         break;
 167                 case 1:
 168                         both_deleted = 1;
 169                         break;
 170                 case 3:
 171                 case 5:
 172                         del_mod_conflict = 1;
 173                         break;
 174                 default:
 175                         not_deleted = 1;
 176                         break;
 177                 }
 178         }
 179
 180         if (!s->hints)
 181                 return;
 182         if (s->whence != FROM_COMMIT)
 183                 ;
 184         else if (!s->is_initial) {
 185                 if (!strcmp(s->reference, "HEAD"))
 186                         status_printf_ln(s, c,
 187                                          _("  (use \"git restore --staged <file>...\" to unstage)"));
 188                 else
 189                         status_printf_ln(s, c,
 190                                          _("  (use \"git restore --source=%s --staged <file>...\" to unstage)"),
 191                                          s->reference);
 192         } else
 193                 status_printf_ln(s, c, _("  (use \"git rm --cached <file>...\" to unstage)"));
 194
 195         if (!both_deleted) {
 196                 if (!del_mod_conflict)
 197                         status_printf_ln(s, c, _("  (use \"git add <file>...\" to mark resolution)"));
 198                 else
 199                         status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" as appropriate to mark resolution)"));
 200         } else if (!del_mod_conflict && !not_deleted) {
 201                 status_printf_ln(s, c, _("  (use \"git rm <file>...\" to mark resolution)"));
 202         } else {
 203                 status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" as appropriate to mark resolution)"));
 204         }
 205 }
 206
 207 static void wt_longstatus_print_cached_header(struct wt_status *s)
 208 {
 209         const char *c = color(WT_STATUS_HEADER, s);
 210
 211         status_printf_ln(s, c, _("Changes to be committed:"));
 212         if (!s->hints)
 213                 return;
 214         if (s->whence != FROM_COMMIT)
 215                 ; /* NEEDSWORK: use "git reset --unresolve"??? */
 216         else if (!s->is_initial) {
 217                 if (!strcmp(s->reference, "HEAD"))
 218                         status_printf_ln(s, c
 219                                          , _("  (use \"git restore --staged <file>...\" to unstage)"));
 220                 else
 221                         status_printf_ln(s, c,
 222                                          _("  (use \"git restore --source=%s --staged <file>...\" to unstage)"),
 223                                          s->reference);
 224         } else
 225                 status_printf_ln(s, c, _("  (use \"git rm --cached <file>...\" to unstage)"));
 226 }
 227
 228 static void wt_longstatus_print_dirty_header(struct wt_status *s,
 229                                              int has_deleted,
 230                                              int has_dirty_submodules)
 231 {
 232         const char *c = color(WT_STATUS_HEADER, s);
 233
 234         status_printf_ln(s, c, _("Changes not staged for commit:"));
 235         if (!s->hints)
 236                 return;
 237         if (!has_deleted)
 238                 status_printf_ln(s, c, _("  (use \"git add <file>...\" to update what will be committed)"));
 239         else
 240                 status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" to update what will be committed)"));
 241         status_printf_ln(s, c, _("  (use \"git restore <file>...\" to discard changes in working directory)"));
 242         if (has_dirty_submodules)
 243                 status_printf_ln(s, c, _("  (commit or discard the untracked or modified content in submodules)"));
 244 }
 245
 246 static void wt_longstatus_print_other_header(struct wt_status *s,
 247                                              const char *what,
 248                                              const char *how)
 249 {
 250         const char *c = color(WT_STATUS_HEADER, s);
 251         status_printf_ln(s, c, "%s:", what);
 252         if (!s->hints)
 253                 return;
 254         status_printf_ln(s, c, _("  (use \"git %s <file>...\" to include in what will be committed)"), how);
 255 }
 256
 257 static void wt_longstatus_print_trailer(struct wt_status *s)
 258 {
 259         status_printf_ln(s, color(WT_STATUS_HEADER, s), "%s", "");
 260 }
 261
 262 static const char *wt_status_unmerged_status_string(int stagemask)
 263 {
 264         switch (stagemask) {
 265         case 1:
 266                 return _("both deleted:");
 267         case 2:
 268                 return _("added by us:");
 269         case 3:
 270                 return _("deleted by them:");
 271         case 4:
 272                 return _("added by them:");
 273         case 5:
 274                 return _("deleted by us:");
 275         case 6:
 276                 return _("both added:");
 277         case 7:
 278                 return _("both modified:");
 279         default:
 280                 BUG("unhandled unmerged status %x", stagemask);
 281         }
 282 }
 283
 284 static const char *wt_status_diff_status_string(int status)
 285 {
 286         switch (status) {
 287         case DIFF_STATUS_ADDED:
 288                 return _("new file:");
 289         case DIFF_STATUS_COPIED:
 290                 return _("copied:");
 291         case DIFF_STATUS_DELETED:
 292                 return _("deleted:");
 293         case DIFF_STATUS_MODIFIED:
 294                 return _("modified:");
 295         case DIFF_STATUS_RENAMED:
 296                 return _("renamed:");
 297         case DIFF_STATUS_TYPE_CHANGED:
 298                 return _("typechange:");
 299         case DIFF_STATUS_UNKNOWN:
 300                 return _("unknown:");
 301         case DIFF_STATUS_UNMERGED:
 302                 return _("unmerged:");
 303         default:
 304                 return NULL;
 305         }
 306 }
 307
 308 static int maxwidth(const char *(*label)(int), int minval, int maxval)
 309 {
 310         int result = 0, i;
 311
 312         for (i = minval; i <= maxval; i++) {
 313                 const char *s = label(i);
 314                 int len = s ? utf8_strwidth(s) : 0;
 315                 if (len > result)
 316                         result = len;
 317         }
 318         return result;
 319 }
 320
 321 static void wt_longstatus_print_unmerged_data(struct wt_status *s,
 322                                               struct string_list_item *it)
 323 {
 324         const char *c = color(WT_STATUS_UNMERGED, s);
 325         struct wt_status_change_data *d = it->util;
 326         struct strbuf onebuf = STRBUF_INIT;
 327         static char *padding;
 328         static int label_width;
 329         const char *one, *how;
 330         int len;
 331
 332         if (!padding) {
 333                 label_width = maxwidth(wt_status_unmerged_status_string, 1, 7);
 334                 label_width += strlen(" ");
 335                 padding = xmallocz(label_width);
 336                 memset(padding, ' ', label_width);
 337         }
 338
 339         one = quote_path(it->string, s->prefix, &onebuf, 0);
 340         status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 341
 342         how = wt_status_unmerged_status_string(d->stagemask);
 343         len = label_width - utf8_strwidth(how);
 344         status_printf_more(s, c, "%s%.*s%s\n", how, len, padding, one);
 345         strbuf_release(&onebuf);
 346 }
 347
 348 static void wt_longstatus_print_change_data(struct wt_status *s,
 349                                             int change_type,
 350                                             struct string_list_item *it)
 351 {
 352         struct wt_status_change_data *d = it->util;
 353         const char *c = color(change_type, s);
 354         int status;
 355         char *one_name;
 356         char *two_name;
 357         const char *one, *two;
 358         struct strbuf onebuf = STRBUF_INIT, twobuf = STRBUF_INIT;
 359         struct strbuf extra = STRBUF_INIT;
 360         static char *padding;
 361         static int label_width;
 362         const char *what;
 363         int len;
 364
 365         if (!padding) {
 366                 /* If DIFF_STATUS_* uses outside the range [A..Z], we're in trouble */
 367                 label_width = maxwidth(wt_status_diff_status_string, 'A', 'Z');
 368                 label_width += strlen(" ");
 369                 padding = xmallocz(label_width);
 370                 memset(padding, ' ', label_width);
 371         }
 372
 373         one_name = two_name = it->string;
 374         switch (change_type) {
 375         case WT_STATUS_UPDATED:
 376                 status = d->index_status;
 377                 break;
 378         case WT_STATUS_CHANGED:
 379                 if (d->new_submodule_commits || d->dirty_submodule) {
 380                         strbuf_addstr(&extra, " (");
 381                         if (d->new_submodule_commits)
 382                                 strbuf_addstr(&extra, _("new commits, "));
 383                         if (d->dirty_submodule & DIRTY_SUBMODULE_MODIFIED)
 384                                 strbuf_addstr(&extra, _("modified content, "));
 385                         if (d->dirty_submodule & DIRTY_SUBMODULE_UNTRACKED)
 386                                 strbuf_addstr(&extra, _("untracked content, "));
 387                         strbuf_setlen(&extra, extra.len - 2);
 388                         strbuf_addch(&extra, ')');
 389                 }
 390                 status = d->worktree_status;
 391                 break;
 392         default:
 393                 BUG("unhandled change_type %d in wt_longstatus_print_change_data",
 394                     change_type);
 395         }
 396
 397         /*
 398          * Only pick up the rename it's relevant. If the rename is for
 399          * the changed section and we're printing the updated section,
 400          * ignore it.
 401          */
 402         if (d->rename_status == status)
 403                 one_name = d->rename_source;
 404
 405         one = quote_path(one_name, s->prefix, &onebuf, 0);
 406         two = quote_path(two_name, s->prefix, &twobuf, 0);
 407
 408         status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 409         what = wt_status_diff_status_string(status);
 410         if (!what)
 411                 BUG("unhandled diff status %c", status);
 412         len = label_width - utf8_strwidth(what);
 413         assert(len >= 0);
 414         if (one_name != two_name)
 415                 status_printf_more(s, c, "%s%.*s%s -> %s",
 416                                    what, len, padding, one, two);
 417         else
 418                 status_printf_more(s, c, "%s%.*s%s",
 419                                    what, len, padding, one);
 420         if (extra.len) {
 421                 status_printf_more(s, color(WT_STATUS_HEADER, s), "%s", extra.buf);
 422                 strbuf_release(&extra);
 423         }
 424         status_printf_more(s, GIT_COLOR_NORMAL, "\n");
 425         strbuf_release(&onebuf);
 426         strbuf_release(&twobuf);
 427 }
 428
 429 static char short_submodule_status(struct wt_status_change_data *d)
 430 {
 431         if (d->new_submodule_commits)
 432                 return 'M';
 433         if (d->dirty_submodule & DIRTY_SUBMODULE_MODIFIED)
 434                 return 'm';
 435         if (d->dirty_submodule & DIRTY_SUBMODULE_UNTRACKED)
 436                 return '?';
 437         return d->worktree_status;
 438 }
 439
 440 static void wt_status_collect_changed_cb(struct diff_queue_struct *q,
 441                                          struct diff_options *options,
 442                                          void *data)
 443 {
 444         struct wt_status *s = data;
 445         int i;
 446
 447         if (!q->nr)
 448                 return;
 449         s->workdir_dirty = 1;
 450         for (i = 0; i < q->nr; i++) {
 451                 struct diff_filepair *p;
 452                 struct string_list_item *it;
 453                 struct wt_status_change_data *d;
 454
 455                 p = q->queue[i];
 456                 it = string_list_insert(&s->change, p->two->path);
 457                 d = it->util;
 458                 if (!d) {
 459                         CALLOC_ARRAY(d, 1);
 460                         it->util = d;
 461                 }
 462                 if (!d->worktree_status)
 463                         d->worktree_status = p->status;
 464                 if (S_ISGITLINK(p->two->mode)) {
 465                         d->dirty_submodule = p->two->dirty_submodule;
 466                         d->new_submodule_commits = !oideq(&p->one->oid,
 467                                                           &p->two->oid);
 468                         if (s->status_format == STATUS_FORMAT_SHORT)
 469                                 d->worktree_status = short_submodule_status(d);
 470                 }
 471
 472                 switch (p->status) {
 473                 case DIFF_STATUS_ADDED:
 474                         d->mode_worktree = p->two->mode;
 475                         break;
 476
 477                 case DIFF_STATUS_DELETED:
 478                         d->mode_index = p->one->mode;
 479                         oidcpy(&d->oid_index, &p->one->oid);
 480                         /* mode_worktree is zero for a delete. */
 481                         break;
 482
 483                 case DIFF_STATUS_COPIED:
 484                 case DIFF_STATUS_RENAMED:
 485                         if (d->rename_status)
 486                                 BUG("multiple renames on the same target? how?");
 487                         d->rename_source = xstrdup(p->one->path);
 488                         d->rename_score = p->score * 100 / MAX_SCORE;
 489                         d->rename_status = p->status;
 490                         /* fallthru */
 491                 case DIFF_STATUS_MODIFIED:
 492                 case DIFF_STATUS_TYPE_CHANGED:
 493                 case DIFF_STATUS_UNMERGED:
 494                         d->mode_index = p->one->mode;
 495                         d->mode_worktree = p->two->mode;
 496                         oidcpy(&d->oid_index, &p->one->oid);
 497                         break;
 498
 499                 default:
 500                         BUG("unhandled diff-files status '%c'", p->status);
 501                         break;
 502                 }
 503
 504         }
 505 }
 506
 507 static int unmerged_mask(struct index_state *istate, const char *path)
 508 {
 509         int pos, mask;
 510         const struct cache_entry *ce;
 511
 512         pos = index_name_pos(istate, path, strlen(path));
 513         if (0 <= pos)
 514                 return 0;
 515
 516         mask = 0;
 517         pos = -pos-1;
 518         while (pos < istate->cache_nr) {
 519                 ce = istate->cache[pos++];
 520                 if (strcmp(ce->name, path) || !ce_stage(ce))
 521                         break;
 522                 mask |= (1 << (ce_stage(ce) - 1));
 523         }
 524         return mask;
 525 }
 526
 527 static void wt_status_collect_updated_cb(struct diff_queue_struct *q,
 528                                          struct diff_options *options,
 529                                          void *data)
 530 {
 531         struct wt_status *s = data;
 532         int i;
 533
 534         for (i = 0; i < q->nr; i++) {
 535                 struct diff_filepair *p;
 536                 struct string_list_item *it;
 537                 struct wt_status_change_data *d;
 538
 539                 p = q->queue[i];
 540                 it = string_list_insert(&s->change, p->two->path);
 541                 d = it->util;
 542                 if (!d) {
 543                         CALLOC_ARRAY(d, 1);
 544                         it->util = d;
 545                 }
 546                 if (!d->index_status)
 547                         d->index_status = p->status;
 548                 switch (p->status) {
 549                 case DIFF_STATUS_ADDED:
 550                         /* Leave {mode,oid}_head zero for an add. */
 551                         d->mode_index = p->two->mode;
 552                         oidcpy(&d->oid_index, &p->two->oid);
 553                         s->committable = 1;
 554                         break;
 555                 case DIFF_STATUS_DELETED:
 556                         d->mode_head = p->one->mode;
 557                         oidcpy(&d->oid_head, &p->one->oid);
 558                         s->committable = 1;
 559                         /* Leave {mode,oid}_index zero for a delete. */
 560                         break;
 561
 562                 case DIFF_STATUS_COPIED:
 563                 case DIFF_STATUS_RENAMED:
 564                         if (d->rename_status)
 565                                 BUG("multiple renames on the same target? how?");
 566                         d->rename_source = xstrdup(p->one->path);
 567                         d->rename_score = p->score * 100 / MAX_SCORE;
 568                         d->rename_status = p->status;
 569                         /* fallthru */
 570                 case DIFF_STATUS_MODIFIED:
 571                 case DIFF_STATUS_TYPE_CHANGED:
 572                         d->mode_head = p->one->mode;
 573                         d->mode_index = p->two->mode;
 574                         oidcpy(&d->oid_head, &p->one->oid);
 575                         oidcpy(&d->oid_index, &p->two->oid);
 576                         s->committable = 1;
 577                         break;
 578                 case DIFF_STATUS_UNMERGED:
 579                         d->stagemask = unmerged_mask(s->repo->index,
 580                                                      p->two->path);
 581                         /*
 582                          * Don't bother setting {mode,oid}_{head,index} since the print
 583                          * code will output the stage values directly and not use the
 584                          * values in these fields.
 585                          */
 586                         break;
 587
 588                 default:
 589                         BUG("unhandled diff-index status '%c'", p->status);
 590                         break;
 591                 }
 592         }
 593 }
 594
 595 static void wt_status_collect_changes_worktree(struct wt_status *s)
 596 {
 597         struct rev_info rev;
 598
 599         repo_init_revisions(s->repo, &rev, NULL);
 600         setup_revisions(0, NULL, &rev, NULL);
 601         rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 602         rev.diffopt.flags.dirty_submodules = 1;
 603         rev.diffopt.ita_invisible_in_index = 1;
 604         if (!s->show_untracked_files)
 605                 rev.diffopt.flags.ignore_untracked_in_submodules = 1;
 606         if (s->ignore_submodule_arg) {
 607                 rev.diffopt.flags.override_submodule_config = 1;
 608                 handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
 609         } else if (!rev.diffopt.flags.ignore_submodule_set &&
 610                         s->show_untracked_files != SHOW_NO_UNTRACKED_FILES)
 611                 handle_ignore_submodules_arg(&rev.diffopt, "none");
 612         rev.diffopt.format_callback = wt_status_collect_changed_cb;
 613         rev.diffopt.format_callback_data = s;
 614         rev.diffopt.detect_rename = s->detect_rename >= 0 ? s->detect_rename : rev.diffopt.detect_rename;
 615         rev.diffopt.rename_limit = s->rename_limit >= 0 ? s->rename_limit : rev.diffopt.rename_limit;
 616         rev.diffopt.rename_score = s->rename_score >= 0 ? s->rename_score : rev.diffopt.rename_score;
 617         copy_pathspec(&rev.prune_data, &s->pathspec);
 618         run_diff_files(&rev, 0);
 619 }
 620
 621 static void wt_status_collect_changes_index(struct wt_status *s)
 622 {
 623         struct rev_info rev;
 624         struct setup_revision_opt opt;
 625
 626         repo_init_revisions(s->repo, &rev, NULL);
 627         memset(&opt, 0, sizeof(opt));
 628         opt.def = s->is_initial ? empty_tree_oid_hex() : s->reference;
 629         setup_revisions(0, NULL, &rev, &opt);
 630
 631         rev.diffopt.flags.override_submodule_config = 1;
 632         rev.diffopt.ita_invisible_in_index = 1;
 633         if (s->ignore_submodule_arg) {
 634                 handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
 635         } else {
 636                 /*
 637                  * Unless the user did explicitly request a submodule ignore
 638                  * mode by passing a command line option we do not ignore any
 639                  * changed submodule SHA-1s when comparing index and HEAD, no
 640                  * matter what is configured. Otherwise the user won't be
 641                  * shown any submodules she manually added (and which are
 642                  * staged to be committed), which would be really confusing.
 643                  */
 644                 handle_ignore_submodules_arg(&rev.diffopt, "dirty");
 645         }
 646
 647         rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 648         rev.diffopt.format_callback = wt_status_collect_updated_cb;
 649         rev.diffopt.format_callback_data = s;
 650         rev.diffopt.detect_rename = s->detect_rename >= 0 ? s->detect_rename : rev.diffopt.detect_rename;
 651         rev.diffopt.rename_limit = s->rename_limit >= 0 ? s->rename_limit : rev.diffopt.rename_limit;
 652         rev.diffopt.rename_score = s->rename_score >= 0 ? s->rename_score : rev.diffopt.rename_score;
 653         copy_pathspec(&rev.prune_data, &s->pathspec);
 654         run_diff_index(&rev, 1);
 655 }
 656
 657 static int add_file_to_list(const struct object_id *oid,
 658                             struct strbuf *base, const char *path,
 659                             unsigned int mode, void *context)
 660 {
 661         struct string_list_item *it;
 662         struct wt_status_change_data *d;
 663         struct wt_status *s = context;
 664         char *full_name;
 665
 666         if (S_ISDIR(mode))
 667                 return READ_TREE_RECURSIVE;
 668
 669         full_name = xstrfmt("%s%s", base->buf, path);
 670         it = string_list_insert(&s->change, full_name);
 671         d = it->util;
 672         if (!d) {
 673                 CALLOC_ARRAY(d, 1);
 674                 it->util = d;
 675         }
 676
 677         d->index_status = DIFF_STATUS_ADDED;
 678         /* Leave {mode,oid}_head zero for adds. */
 679         d->mode_index = mode;
 680         oidcpy(&d->oid_index, oid);
 681         s->committable = 1;
 682         return 0;
 683 }
 684
 685 static void wt_status_collect_changes_initial(struct wt_status *s)
 686 {
 687         struct index_state *istate = s->repo->index;
 688         int i;
 689
 690         for (i = 0; i < istate->cache_nr; i++) {
 691                 struct string_list_item *it;
 692                 struct wt_status_change_data *d;
 693                 const struct cache_entry *ce = istate->cache[i];
 694
 695                 if (!ce_path_match(istate, ce, &s->pathspec, NULL))
 696                         continue;
 697                 if (ce_intent_to_add(ce))
 698                         continue;
 699                 if (S_ISSPARSEDIR(ce->ce_mode)) {
 700                         /*
 701                          * This is a sparse directory entry, so we want to collect all
 702                          * of the added files within the tree. This requires recursively
 703                          * expanding the trees to find the elements that are new in this
 704                          * tree and marking them with DIFF_STATUS_ADDED.
 705                          */
 706                         struct strbuf base = STRBUF_INIT;
 707                         struct pathspec ps;
 708                         struct tree *tree = lookup_tree(istate->repo, &ce->oid);
 709
 710                         memset(&ps, 0, sizeof(ps));
 711                         ps.recursive = 1;
 712                         ps.has_wildcard = 1;
 713                         ps.max_depth = -1;
 714
 715                         strbuf_add(&base, ce->name, ce->ce_namelen);
 716                         read_tree_at(istate->repo, tree, &base, &ps,
 717                                      add_file_to_list, s);
 718                         continue;
 719                 }
 720
 721                 it = string_list_insert(&s->change, ce->name);
 722                 d = it->util;
 723                 if (!d) {
 724                         CALLOC_ARRAY(d, 1);
 725                         it->util = d;
 726                 }
 727                 if (ce_stage(ce)) {
 728                         d->index_status = DIFF_STATUS_UNMERGED;
 729                         d->stagemask |= (1 << (ce_stage(ce) - 1));
 730                         /*
 731                          * Don't bother setting {mode,oid}_{head,index} since the print
 732                          * code will output the stage values directly and not use the
 733                          * values in these fields.
 734                          */
 735                         s->committable = 1;
 736                 } else {
 737                         d->index_status = DIFF_STATUS_ADDED;
 738                         /* Leave {mode,oid}_head zero for adds. */
 739                         d->mode_index = ce->ce_mode;
 740                         oidcpy(&d->oid_index, &ce->oid);
 741                         s->committable = 1;
 742                 }
 743         }
 744 }
 745
 746 static void wt_status_collect_untracked(struct wt_status *s)
 747 {
 748         int i;
 749         struct dir_struct dir;
 750         uint64_t t_begin = getnanotime();
 751         struct index_state *istate = s->repo->index;
 752
 753         if (!s->show_untracked_files)
 754                 return;
 755
 756         dir_init(&dir);
 757         if (s->show_untracked_files != SHOW_ALL_UNTRACKED_FILES)
 758                 dir.flags |=
 759                         DIR_SHOW_OTHER_DIRECTORIES | DIR_HIDE_EMPTY_DIRECTORIES;
 760         if (s->show_ignored_mode) {
 761                 dir.flags |= DIR_SHOW_IGNORED_TOO;
 762
 763                 if (s->show_ignored_mode == SHOW_MATCHING_IGNORED)
 764                         dir.flags |= DIR_SHOW_IGNORED_TOO_MODE_MATCHING;
 765         } else {
 766                 dir.untracked = istate->untracked;
 767         }
 768
 769         setup_standard_excludes(&dir);
 770
 771         fill_directory(&dir, istate, &s->pathspec);
 772
 773         for (i = 0; i < dir.nr; i++) {
 774                 struct dir_entry *ent = dir.entries[i];
 775                 if (index_name_is_other(istate, ent->name, ent->len))
 776                         string_list_insert(&s->untracked, ent->name);
 777         }
 778
 779         for (i = 0; i < dir.ignored_nr; i++) {
 780                 struct dir_entry *ent = dir.ignored[i];
 781                 if (index_name_is_other(istate, ent->name, ent->len))
 782                         string_list_insert(&s->ignored, ent->name);
 783         }
 784
 785         dir_clear(&dir);
 786
 787         if (advice_status_u_option)
 788                 s->untracked_in_ms = (getnanotime() - t_begin) / 1000000;
 789 }
 790
 791 static int has_unmerged(struct wt_status *s)
 792 {
 793         int i;
 794
 795         for (i = 0; i < s->change.nr; i++) {
 796                 struct wt_status_change_data *d;
 797                 d = s->change.items[i].util;
 798                 if (d->stagemask)
 799                         return 1;
 800         }
 801         return 0;
 802 }
 803
 804 void wt_status_collect(struct wt_status *s)
 805 {
 806         trace2_region_enter("status", "worktrees", s->repo);
 807         wt_status_collect_changes_worktree(s);
 808         trace2_region_leave("status", "worktrees", s->repo);
 809
 810         if (s->is_initial) {
 811                 trace2_region_enter("status", "initial", s->repo);
 812                 wt_status_collect_changes_initial(s);
 813                 trace2_region_leave("status", "initial", s->repo);
 814         } else {
 815                 trace2_region_enter("status", "index", s->repo);
 816                 wt_status_collect_changes_index(s);
 817                 trace2_region_leave("status", "index", s->repo);
 818         }
 819
 820         trace2_region_enter("status", "untracked", s->repo);
 821         wt_status_collect_untracked(s);
 822         trace2_region_leave("status", "untracked", s->repo);
 823
 824         wt_status_get_state(s->repo, &s->state, s->branch && !strcmp(s->branch, "HEAD"));
 825         if (s->state.merge_in_progress && !has_unmerged(s))
 826                 s->committable = 1;
 827 }
 828
 829 void wt_status_collect_free_buffers(struct wt_status *s)
 830 {
 831         wt_status_state_free_buffers(&s->state);
 832 }
 833
 834 void wt_status_state_free_buffers(struct wt_status_state *state)
 835 {
 836         FREE_AND_NULL(state->branch);
 837         FREE_AND_NULL(state->onto);
 838         FREE_AND_NULL(state->detached_from);
 839 }
 840
 841 static void wt_longstatus_print_unmerged(struct wt_status *s)
 842 {
 843         int shown_header = 0;
 844         int i;
 845
 846         for (i = 0; i < s->change.nr; i++) {
 847                 struct wt_status_change_data *d;
 848                 struct string_list_item *it;
 849                 it = &(s->change.items[i]);
 850                 d = it->util;
 851                 if (!d->stagemask)
 852                         continue;
 853                 if (!shown_header) {
 854                         wt_longstatus_print_unmerged_header(s);
 855                         shown_header = 1;
 856                 }
 857                 wt_longstatus_print_unmerged_data(s, it);
 858         }
 859         if (shown_header)
 860                 wt_longstatus_print_trailer(s);
 861
 862 }
 863
 864 static void wt_longstatus_print_updated(struct wt_status *s)
 865 {
 866         int shown_header = 0;
 867         int i;
 868
 869         for (i = 0; i < s->change.nr; i++) {
 870                 struct wt_status_change_data *d;
 871                 struct string_list_item *it;
 872                 it = &(s->change.items[i]);
 873                 d = it->util;
 874                 if (!d->index_status ||
 875                     d->index_status == DIFF_STATUS_UNMERGED)
 876                         continue;
 877                 if (!shown_header) {
 878                         wt_longstatus_print_cached_header(s);
 879                         shown_header = 1;
 880                 }
 881                 wt_longstatus_print_change_data(s, WT_STATUS_UPDATED, it);
 882         }
 883         if (shown_header)
 884                 wt_longstatus_print_trailer(s);
 885 }
 886
 887 /*
 888  * -1 : has delete
 889  *  0 : no change
 890  *  1 : some change but no delete
 891  */
 892 static int wt_status_check_worktree_changes(struct wt_status *s,
 893                                              int *dirty_submodules)
 894 {
 895         int i;
 896         int changes = 0;
 897
 898         *dirty_submodules = 0;
 899
 900         for (i = 0; i < s->change.nr; i++) {
 901                 struct wt_status_change_data *d;
 902                 d = s->change.items[i].util;
 903                 if (!d->worktree_status ||
 904                     d->worktree_status == DIFF_STATUS_UNMERGED)
 905                         continue;
 906                 if (!changes)
 907                         changes = 1;
 908                 if (d->dirty_submodule)
 909                         *dirty_submodules = 1;
 910                 if (d->worktree_status == DIFF_STATUS_DELETED)
 911                         changes = -1;
 912         }
 913         return changes;
 914 }
 915
 916 static void wt_longstatus_print_changed(struct wt_status *s)
 917 {
 918         int i, dirty_submodules;
 919         int worktree_changes = wt_status_check_worktree_changes(s, &dirty_submodules);
 920
 921         if (!worktree_changes)
 922                 return;
 923
 924         wt_longstatus_print_dirty_header(s, worktree_changes < 0, dirty_submodules);
 925
 926         for (i = 0; i < s->change.nr; i++) {
 927                 struct wt_status_change_data *d;
 928                 struct string_list_item *it;
 929                 it = &(s->change.items[i]);
 930                 d = it->util;
 931                 if (!d->worktree_status ||
 932                     d->worktree_status == DIFF_STATUS_UNMERGED)
 933                         continue;
 934                 wt_longstatus_print_change_data(s, WT_STATUS_CHANGED, it);
 935         }
 936         wt_longstatus_print_trailer(s);
 937 }
 938
 939 static int stash_count_refs(struct object_id *ooid, struct object_id *noid,
 940                             const char *email, timestamp_t timestamp, int tz,
 941                             const char *message, void *cb_data)
 942 {
 943         int *c = cb_data;
 944         (*c)++;
 945         return 0;
 946 }
 947
 948 static void wt_longstatus_print_stash_summary(struct wt_status *s)
 949 {
 950         int stash_count = 0;
 951
 952         for_each_reflog_ent("refs/stash", stash_count_refs, &stash_count);
 953         if (stash_count > 0)
 954                 status_printf_ln(s, GIT_COLOR_NORMAL,
 955                                  Q_("Your stash currently has %d entry",
 956                                     "Your stash currently has %d entries", stash_count),
 957                                  stash_count);
 958 }
 959
 960 static void wt_longstatus_print_submodule_summary(struct wt_status *s, int uncommitted)
 961 {
 962         struct child_process sm_summary = CHILD_PROCESS_INIT;
 963         struct strbuf cmd_stdout = STRBUF_INIT;
 964         struct strbuf summary = STRBUF_INIT;
 965         char *summary_content;
 966
 967         strvec_pushf(&sm_summary.env_array, "GIT_INDEX_FILE=%s", s->index_file);
 968
 969         strvec_push(&sm_summary.args, "submodule");
 970         strvec_push(&sm_summary.args, "summary");
 971         strvec_push(&sm_summary.args, uncommitted ? "--files" : "--cached");
 972         strvec_push(&sm_summary.args, "--for-status");
 973         strvec_push(&sm_summary.args, "--summary-limit");
 974         strvec_pushf(&sm_summary.args, "%d", s->submodule_summary);
 975         if (!uncommitted)
 976                 strvec_push(&sm_summary.args, s->amend ? "HEAD^" : "HEAD");
 977
 978         sm_summary.git_cmd = 1;
 979         sm_summary.no_stdin = 1;
 980
 981         capture_command(&sm_summary, &cmd_stdout, 1024);
 982
 983         /* prepend header, only if there's an actual output */
 984         if (cmd_stdout.len) {
 985                 if (uncommitted)
 986                         strbuf_addstr(&summary, _("Submodules changed but not updated:"));
 987                 else
 988                         strbuf_addstr(&summary, _("Submodule changes to be committed:"));
 989                 strbuf_addstr(&summary, "\n\n");
 990         }
 991         strbuf_addbuf(&summary, &cmd_stdout);
 992         strbuf_release(&cmd_stdout);
 993
 994         if (s->display_comment_prefix) {
 995                 size_t len;
 996                 summary_content = strbuf_detach(&summary, &len);
 997                 strbuf_add_commented_lines(&summary, summary_content, len);
 998                 free(summary_content);
 999         }
1000
1001         fputs(summary.buf, s->fp);
1002         strbuf_release(&summary);
1003 }
1004
1005 static void wt_longstatus_print_other(struct wt_status *s,
1006                                       struct string_list *l,
1007                                       const char *what,
1008                                       const char *how)
1009 {
1010         int i;
1011         struct strbuf buf = STRBUF_INIT;
1012         static struct string_list output = STRING_LIST_INIT_DUP;
1013         struct column_options copts;
1014
1015         if (!l->nr)
1016                 return;
1017
1018         wt_longstatus_print_other_header(s, what, how);
1019
1020         for (i = 0; i < l->nr; i++) {
1021                 struct string_list_item *it;
1022                 const char *path;
1023                 it = &(l->items[i]);
1024                 path = quote_path(it->string, s->prefix, &buf, 0);
1025                 if (column_active(s->colopts)) {
1026                         string_list_append(&output, path);
1027                         continue;
1028                 }
1029                 status_printf(s, color(WT_STATUS_HEADER, s), "\t");
1030                 status_printf_more(s, color(WT_STATUS_UNTRACKED, s),
1031                                    "%s\n", path);
1032         }
1033
1034         strbuf_release(&buf);
1035         if (!column_active(s->colopts))
1036                 goto conclude;
1037
1038         strbuf_addf(&buf, "%s%s\t%s",
1039                     color(WT_STATUS_HEADER, s),
1040                     s->display_comment_prefix ? "#" : "",
1041                     color(WT_STATUS_UNTRACKED, s));
1042         memset(&copts, 0, sizeof(copts));
1043         copts.padding = 1;
1044         copts.indent = buf.buf;
1045         if (want_color(s->use_color))
1046                 copts.nl = GIT_COLOR_RESET "\n";
1047         print_columns(&output, s->colopts, &copts);
1048         string_list_clear(&output, 0);
1049         strbuf_release(&buf);
1050 conclude:
1051         status_printf_ln(s, GIT_COLOR_NORMAL, "%s", "");
1052 }
1053
1054 size_t wt_status_locate_end(const char *s, size_t len)
1055 {
1056         const char *p;
1057         struct strbuf pattern = STRBUF_INIT;
1058
1059         strbuf_addf(&pattern, "\n%c %s", comment_line_char, cut_line);
1060         if (starts_with(s, pattern.buf + 1))
1061                 len = 0;
1062         else if ((p = strstr(s, pattern.buf)))
1063                 len = p - s + 1;
1064         strbuf_release(&pattern);
1065         return len;
1066 }
1067
1068 void wt_status_append_cut_line(struct strbuf *buf)
1069 {
1070         const char *explanation = _("Do not modify or remove the line above.\nEverything below it will be ignored.");
1071
1072         strbuf_commented_addf(buf, "%s", cut_line);
1073         strbuf_add_commented_lines(buf, explanation, strlen(explanation));
1074 }
1075
1076 void wt_status_add_cut_line(FILE *fp)
1077 {
1078         struct strbuf buf = STRBUF_INIT;
1079
1080         wt_status_append_cut_line(&buf);
1081         fputs(buf.buf, fp);
1082         strbuf_release(&buf);
1083 }
1084
1085 static void wt_longstatus_print_verbose(struct wt_status *s)
1086 {
1087         struct rev_info rev;
1088         struct setup_revision_opt opt;
1089         int dirty_submodules;
1090         const char *c = color(WT_STATUS_HEADER, s);
1091
1092         repo_init_revisions(s->repo, &rev, NULL);
1093         rev.diffopt.flags.allow_textconv = 1;
1094         rev.diffopt.ita_invisible_in_index = 1;
1095
1096         memset(&opt, 0, sizeof(opt));
1097         opt.def = s->is_initial ? empty_tree_oid_hex() : s->reference;
1098         setup_revisions(0, NULL, &rev, &opt);
1099
1100         rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
1101         rev.diffopt.detect_rename = s->detect_rename >= 0 ? s->detect_rename : rev.diffopt.detect_rename;
1102         rev.diffopt.rename_limit = s->rename_limit >= 0 ? s->rename_limit : rev.diffopt.rename_limit;
1103         rev.diffopt.rename_score = s->rename_score >= 0 ? s->rename_score : rev.diffopt.rename_score;
1104         rev.diffopt.file = s->fp;
1105         rev.diffopt.close_file = 0;
1106         /*
1107          * If we're not going to stdout, then we definitely don't
1108          * want color, since we are going to the commit message
1109          * file (and even the "auto" setting won't work, since it
1110          * will have checked isatty on stdout). But we then do want
1111          * to insert the scissor line here to reliably remove the
1112          * diff before committing.
1113          */
1114         if (s->fp != stdout) {
1115                 rev.diffopt.use_color = 0;
1116                 wt_status_add_cut_line(s->fp);
1117         }
1118         if (s->verbose > 1 && s->committable) {
1119                 /* print_updated() printed a header, so do we */
1120                 if (s->fp != stdout)
1121                         wt_longstatus_print_trailer(s);
1122                 status_printf_ln(s, c, _("Changes to be committed:"));
1123                 rev.diffopt.a_prefix = "c/";
1124                 rev.diffopt.b_prefix = "i/";
1125         } /* else use prefix as per user config */
1126         run_diff_index(&rev, 1);
1127         if (s->verbose > 1 &&
1128             wt_status_check_worktree_changes(s, &dirty_submodules)) {
1129                 status_printf_ln(s, c,
1130                         "--------------------------------------------------");
1131                 status_printf_ln(s, c, _("Changes not staged for commit:"));
1132                 setup_work_tree();
1133                 rev.diffopt.a_prefix = "i/";
1134                 rev.diffopt.b_prefix = "w/";
1135                 run_diff_files(&rev, 0);
1136         }
1137 }
1138
1139 static void wt_longstatus_print_tracking(struct wt_status *s)
1140 {
1141         struct strbuf sb = STRBUF_INIT;
1142         const char *cp, *ep, *branch_name;
1143         struct branch *branch;
1144         char comment_line_string[3];
1145         int i;
1146         uint64_t t_begin = 0;
1147
1148         assert(s->branch && !s->is_initial);
1149         if (!skip_prefix(s->branch, "refs/heads/", &branch_name))
1150                 return;
1151         branch = branch_get(branch_name);
1152
1153         t_begin = getnanotime();
1154
1155         if (!format_tracking_info(branch, &sb, s->ahead_behind_flags))
1156                 return;
1157
1158         if (advice_status_ahead_behind_warning &&
1159             s->ahead_behind_flags == AHEAD_BEHIND_FULL) {
1160                 uint64_t t_delta_in_ms = (getnanotime() - t_begin) / 1000000;
1161                 if (t_delta_in_ms > AB_DELAY_WARNING_IN_MS) {
1162                         strbuf_addf(&sb, _("\n"
1163                                            "It took %.2f seconds to compute the branch ahead/behind values.\n"
1164                                            "You can use '--no-ahead-behind' to avoid this.\n"),
1165                                     t_delta_in_ms / 1000.0);
1166                 }
1167         }
1168
1169         i = 0;
1170         if (s->display_comment_prefix) {
1171                 comment_line_string[i++] = comment_line_char;
1172                 comment_line_string[i++] = ' ';
1173         }
1174         comment_line_string[i] = '\0';
1175
1176         for (cp = sb.buf; (ep = strchr(cp, '\n')) != NULL; cp = ep + 1)
1177                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s),
1178                                  "%s%.*s", comment_line_string,
1179                                  (int)(ep - cp), cp);
1180         if (s->display_comment_prefix)
1181                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "%c",
1182                                  comment_line_char);
1183         else
1184                 fputs("\n", s->fp);
1185         strbuf_release(&sb);
1186 }
1187
1188 static void show_merge_in_progress(struct wt_status *s,
1189                                    const char *color)
1190 {
1191         if (has_unmerged(s)) {
1192                 status_printf_ln(s, color, _("You have unmerged paths."));
1193                 if (s->hints) {
1194                         status_printf_ln(s, color,
1195                                          _("  (fix conflicts and run \"git commit\")"));
1196                         status_printf_ln(s, color,
1197                                          _("  (use \"git merge --abort\" to abort the merge)"));
1198                 }
1199         } else {
1200                 status_printf_ln(s, color,
1201                         _("All conflicts fixed but you are still merging."));
1202                 if (s->hints)
1203                         status_printf_ln(s, color,
1204                                 _("  (use \"git commit\" to conclude merge)"));
1205         }
1206         wt_longstatus_print_trailer(s);
1207 }
1208
1209 static void show_am_in_progress(struct wt_status *s,
1210                                 const char *color)
1211 {
1212         status_printf_ln(s, color,
1213                 _("You are in the middle of an am session."));
1214         if (s->state.am_empty_patch)
1215                 status_printf_ln(s, color,
1216                         _("The current patch is empty."));
1217         if (s->hints) {
1218                 if (!s->state.am_empty_patch)
1219                         status_printf_ln(s, color,
1220                                 _("  (fix conflicts and then run \"git am --continue\")"));
1221                 status_printf_ln(s, color,
1222                         _("  (use \"git am --skip\" to skip this patch)"));
1223                 status_printf_ln(s, color,
1224                         _("  (use \"git am --abort\" to restore the original branch)"));
1225         }
1226         wt_longstatus_print_trailer(s);
1227 }
1228
1229 static char *read_line_from_git_path(const char *filename)
1230 {
1231         struct strbuf buf = STRBUF_INIT;
1232         FILE *fp = fopen_or_warn(git_path("%s", filename), "r");
1233
1234         if (!fp) {
1235                 strbuf_release(&buf);
1236                 return NULL;
1237         }
1238         strbuf_getline_lf(&buf, fp);
1239         if (!fclose(fp)) {
1240                 return strbuf_detach(&buf, NULL);
1241         } else {
1242                 strbuf_release(&buf);
1243                 return NULL;
1244         }
1245 }
1246
1247 static int split_commit_in_progress(struct wt_status *s)
1248 {
1249         int split_in_progress = 0;
1250         char *head, *orig_head, *rebase_amend, *rebase_orig_head;
1251
1252         if ((!s->amend && !s->nowarn && !s->workdir_dirty) ||
1253             !s->branch || strcmp(s->branch, "HEAD"))
1254                 return 0;
1255
1256         head = read_line_from_git_path("HEAD");
1257         orig_head = read_line_from_git_path("ORIG_HEAD");
1258         rebase_amend = read_line_from_git_path("rebase-merge/amend");
1259         rebase_orig_head = read_line_from_git_path("rebase-merge/orig-head");
1260
1261         if (!head || !orig_head || !rebase_amend || !rebase_orig_head)
1262                 ; /* fall through, no split in progress */
1263         else if (!strcmp(rebase_amend, rebase_orig_head))
1264                 split_in_progress = !!strcmp(head, rebase_amend);
1265         else if (strcmp(orig_head, rebase_orig_head))
1266                 split_in_progress = 1;
1267
1268         free(head);
1269         free(orig_head);
1270         free(rebase_amend);
1271         free(rebase_orig_head);
1272
1273         return split_in_progress;
1274 }
1275
1276 /*
1277  * Turn
1278  * "pick d6a2f0303e897ec257dd0e0a39a5ccb709bc2047 some message"
1279  * into
1280  * "pick d6a2f03 some message"
1281  *
1282  * The function assumes that the line does not contain useless spaces
1283  * before or after the command.
1284  */
1285 static void abbrev_oid_in_line(struct strbuf *line)
1286 {
1287         struct strbuf **split;
1288         int i;
1289
1290         if (starts_with(line->buf, "exec ") ||
1291             starts_with(line->buf, "x ") ||
1292             starts_with(line->buf, "label ") ||
1293             starts_with(line->buf, "l "))
1294                 return;
1295
1296         split = strbuf_split_max(line, ' ', 3);
1297         if (split[0] && split[1]) {
1298                 struct object_id oid;
1299
1300                 /*
1301                  * strbuf_split_max left a space. Trim it and re-add
1302                  * it after abbreviation.
1303                  */
1304                 strbuf_trim(split[1]);
1305                 if (!get_oid(split[1]->buf, &oid)) {
1306                         strbuf_reset(split[1]);
1307                         strbuf_add_unique_abbrev(split[1], &oid,
1308                                                  DEFAULT_ABBREV);
1309                         strbuf_addch(split[1], ' ');
1310                         strbuf_reset(line);
1311                         for (i = 0; split[i]; i++)
1312                                 strbuf_addbuf(line, split[i]);
1313                 }
1314         }
1315         strbuf_list_free(split);
1316 }
1317
1318 static int read_rebase_todolist(const char *fname, struct string_list *lines)
1319 {
1320         struct strbuf line = STRBUF_INIT;
1321         FILE *f = fopen(git_path("%s", fname), "r");
1322
1323         if (!f) {
1324                 if (errno == ENOENT)
1325                         return -1;
1326                 die_errno("Could not open file %s for reading",
1327                           git_path("%s", fname));
1328         }
1329         while (!strbuf_getline_lf(&line, f)) {
1330                 if (line.len && line.buf[0] == comment_line_char)
1331                         continue;
1332                 strbuf_trim(&line);
1333                 if (!line.len)
1334                         continue;
1335                 abbrev_oid_in_line(&line);
1336                 string_list_append(lines, line.buf);
1337         }
1338         fclose(f);
1339         strbuf_release(&line);
1340         return 0;
1341 }
1342
1343 static void show_rebase_information(struct wt_status *s,
1344                                     const char *color)
1345 {
1346         if (s->state.rebase_interactive_in_progress) {
1347                 int i;
1348                 int nr_lines_to_show = 2;
1349
1350                 struct string_list have_done = STRING_LIST_INIT_DUP;
1351                 struct string_list yet_to_do = STRING_LIST_INIT_DUP;
1352
1353                 read_rebase_todolist("rebase-merge/done", &have_done);
1354                 if (read_rebase_todolist("rebase-merge/git-rebase-todo",
1355                                          &yet_to_do))
1356                         status_printf_ln(s, color,
1357                                 _("git-rebase-todo is missing."));
1358                 if (have_done.nr == 0)
1359                         status_printf_ln(s, color, _("No commands done."));
1360                 else {
1361                         status_printf_ln(s, color,
1362                                 Q_("Last command done (%d command done):",
1363                                         "Last commands done (%d commands done):",
1364                                         have_done.nr),
1365                                 have_done.nr);
1366                         for (i = (have_done.nr > nr_lines_to_show)
1367                                 ? have_done.nr - nr_lines_to_show : 0;
1368                                 i < have_done.nr;
1369                                 i++)
1370                                 status_printf_ln(s, color, "   %s", have_done.items[i].string);
1371                         if (have_done.nr > nr_lines_to_show && s->hints)
1372                                 status_printf_ln(s, color,
1373                                         _("  (see more in file %s)"), git_path("rebase-merge/done"));
1374                 }
1375
1376                 if (yet_to_do.nr == 0)
1377                         status_printf_ln(s, color,
1378                                          _("No commands remaining."));
1379                 else {
1380                         status_printf_ln(s, color,
1381                                 Q_("Next command to do (%d remaining command):",
1382                                         "Next commands to do (%d remaining commands):",
1383                                         yet_to_do.nr),
1384                                 yet_to_do.nr);
1385                         for (i = 0; i < nr_lines_to_show && i < yet_to_do.nr; i++)
1386                                 status_printf_ln(s, color, "   %s", yet_to_do.items[i].string);
1387                         if (s->hints)
1388                                 status_printf_ln(s, color,
1389                                         _("  (use \"git rebase --edit-todo\" to view and edit)"));
1390                 }
1391                 string_list_clear(&yet_to_do, 0);
1392                 string_list_clear(&have_done, 0);
1393         }
1394 }
1395
1396 static void print_rebase_state(struct wt_status *s,
1397                                const char *color)
1398 {
1399         if (s->state.branch)
1400                 status_printf_ln(s, color,
1401                                  _("You are currently rebasing branch '%s' on '%s'."),
1402                                  s->state.branch,
1403                                  s->state.onto);
1404         else
1405                 status_printf_ln(s, color,
1406                                  _("You are currently rebasing."));
1407 }
1408
1409 static void show_rebase_in_progress(struct wt_status *s,
1410                                     const char *color)
1411 {
1412         struct stat st;
1413
1414         show_rebase_information(s, color);
1415         if (has_unmerged(s)) {
1416                 print_rebase_state(s, color);
1417                 if (s->hints) {
1418                         status_printf_ln(s, color,
1419                                 _("  (fix conflicts and then run \"git rebase --continue\")"));
1420                         status_printf_ln(s, color,
1421                                 _("  (use \"git rebase --skip\" to skip this patch)"));
1422                         status_printf_ln(s, color,
1423                                 _("  (use \"git rebase --abort\" to check out the original branch)"));
1424                 }
1425         } else if (s->state.rebase_in_progress ||
1426                    !stat(git_path_merge_msg(s->repo), &st)) {
1427                 print_rebase_state(s, color);
1428                 if (s->hints)
1429                         status_printf_ln(s, color,
1430                                 _("  (all conflicts fixed: run \"git rebase --continue\")"));
1431         } else if (split_commit_in_progress(s)) {
1432                 if (s->state.branch)
1433                         status_printf_ln(s, color,
1434                                          _("You are currently splitting a commit while rebasing branch '%s' on '%s'."),
1435                                          s->state.branch,
1436                                          s->state.onto);
1437                 else
1438                         status_printf_ln(s, color,
1439                                          _("You are currently splitting a commit during a rebase."));
1440                 if (s->hints)
1441                         status_printf_ln(s, color,
1442                                 _("  (Once your working directory is clean, run \"git rebase --continue\")"));
1443         } else {
1444                 if (s->state.branch)
1445                         status_printf_ln(s, color,
1446                                          _("You are currently editing a commit while rebasing branch '%s' on '%s'."),
1447                                          s->state.branch,
1448                                          s->state.onto);
1449                 else
1450                         status_printf_ln(s, color,
1451                                          _("You are currently editing a commit during a rebase."));
1452                 if (s->hints && !s->amend) {
1453                         status_printf_ln(s, color,
1454                                 _("  (use \"git commit --amend\" to amend the current commit)"));
1455                         status_printf_ln(s, color,
1456                                 _("  (use \"git rebase --continue\" once you are satisfied with your changes)"));
1457                 }
1458         }
1459         wt_longstatus_print_trailer(s);
1460 }
1461
1462 static void show_cherry_pick_in_progress(struct wt_status *s,
1463                                          const char *color)
1464 {
1465         if (is_null_oid(&s->state.cherry_pick_head_oid))
1466                 status_printf_ln(s, color,
1467                         _("Cherry-pick currently in progress."));
1468         else
1469                 status_printf_ln(s, color,
1470                         _("You are currently cherry-picking commit %s."),
1471                         find_unique_abbrev(&s->state.cherry_pick_head_oid,
1472                                            DEFAULT_ABBREV));
1473
1474         if (s->hints) {
1475                 if (has_unmerged(s))
1476                         status_printf_ln(s, color,
1477                                 _("  (fix conflicts and run \"git cherry-pick --continue\")"));
1478                 else if (is_null_oid(&s->state.cherry_pick_head_oid))
1479                         status_printf_ln(s, color,
1480                                 _("  (run \"git cherry-pick --continue\" to continue)"));
1481                 else
1482                         status_printf_ln(s, color,
1483                                 _("  (all conflicts fixed: run \"git cherry-pick --continue\")"));
1484                 status_printf_ln(s, color,
1485                         _("  (use \"git cherry-pick --skip\" to skip this patch)"));
1486                 status_printf_ln(s, color,
1487                         _("  (use \"git cherry-pick --abort\" to cancel the cherry-pick operation)"));
1488         }
1489         wt_longstatus_print_trailer(s);
1490 }
1491
1492 static void show_revert_in_progress(struct wt_status *s,
1493                                     const char *color)
1494 {
1495         if (is_null_oid(&s->state.revert_head_oid))
1496                 status_printf_ln(s, color,
1497                         _("Revert currently in progress."));
1498         else
1499                 status_printf_ln(s, color,
1500                         _("You are currently reverting commit %s."),
1501                         find_unique_abbrev(&s->state.revert_head_oid,
1502                                            DEFAULT_ABBREV));
1503         if (s->hints) {
1504                 if (has_unmerged(s))
1505                         status_printf_ln(s, color,
1506                                 _("  (fix conflicts and run \"git revert --continue\")"));
1507                 else if (is_null_oid(&s->state.revert_head_oid))
1508                         status_printf_ln(s, color,
1509                                 _("  (run \"git revert --continue\" to continue)"));
1510                 else
1511                         status_printf_ln(s, color,
1512                                 _("  (all conflicts fixed: run \"git revert --continue\")"));
1513                 status_printf_ln(s, color,
1514                         _("  (use \"git revert --skip\" to skip this patch)"));
1515                 status_printf_ln(s, color,
1516                         _("  (use \"git revert --abort\" to cancel the revert operation)"));
1517         }
1518         wt_longstatus_print_trailer(s);
1519 }
1520
1521 static void show_bisect_in_progress(struct wt_status *s,
1522                                     const char *color)
1523 {
1524         if (s->state.branch)
1525                 status_printf_ln(s, color,
1526                                  _("You are currently bisecting, started from branch '%s'."),
1527                                  s->state.branch);
1528         else
1529                 status_printf_ln(s, color,
1530                                  _("You are currently bisecting."));
1531         if (s->hints)
1532                 status_printf_ln(s, color,
1533                         _("  (use \"git bisect reset\" to get back to the original branch)"));
1534         wt_longstatus_print_trailer(s);
1535 }
1536
1537 static void show_sparse_checkout_in_use(struct wt_status *s,
1538                                         const char *color)
1539 {
1540         if (s->state.sparse_checkout_percentage == SPARSE_CHECKOUT_DISABLED)
1541                 return;
1542
1543         if (s->state.sparse_checkout_percentage == SPARSE_CHECKOUT_SPARSE_INDEX)
1544                 status_printf_ln(s, color, _("You are in a sparse checkout."));
1545         else
1546                 status_printf_ln(s, color,
1547                                 _("You are in a sparse checkout with %d%% of tracked files present."),
1548                                 s->state.sparse_checkout_percentage);
1549         wt_longstatus_print_trailer(s);
1550 }
1551
1552 /*
1553  * Extract branch information from rebase/bisect
1554  */
1555 static char *get_branch(const struct worktree *wt, const char *path)
1556 {
1557         struct strbuf sb = STRBUF_INIT;
1558         struct object_id oid;
1559         const char *branch_name;
1560
1561         if (strbuf_read_file(&sb, worktree_git_path(wt, "%s", path), 0) <= 0)
1562                 goto got_nothing;
1563
1564         while (sb.len && sb.buf[sb.len - 1] == '\n')
1565                 strbuf_setlen(&sb, sb.len - 1);
1566         if (!sb.len)
1567                 goto got_nothing;
1568         if (skip_prefix(sb.buf, "refs/heads/", &branch_name))
1569                 strbuf_remove(&sb, 0, branch_name - sb.buf);
1570         else if (starts_with(sb.buf, "refs/"))
1571                 ;
1572         else if (!get_oid_hex(sb.buf, &oid)) {
1573                 strbuf_reset(&sb);
1574                 strbuf_add_unique_abbrev(&sb, &oid, DEFAULT_ABBREV);
1575         } else if (!strcmp(sb.buf, "detached HEAD")) /* rebase */
1576                 goto got_nothing;
1577         else                    /* bisect */
1578                 ;
1579         return strbuf_detach(&sb, NULL);
1580
1581 got_nothing:
1582         strbuf_release(&sb);
1583         return NULL;
1584 }
1585
1586 struct grab_1st_switch_cbdata {
1587         struct strbuf buf;
1588         struct object_id noid;
1589 };
1590
1591 static int grab_1st_switch(struct object_id *ooid, struct object_id *noid,
1592                            const char *email, timestamp_t timestamp, int tz,
1593                            const char *message, void *cb_data)
1594 {
1595         struct grab_1st_switch_cbdata *cb = cb_data;
1596         const char *target = NULL, *end;
1597
1598         if (!skip_prefix(message, "checkout: moving from ", &message))
1599                 return 0;
1600         target = strstr(message, " to ");
1601         if (!target)
1602                 return 0;
1603         target += strlen(" to ");
1604         strbuf_reset(&cb->buf);
1605         oidcpy(&cb->noid, noid);
1606         end = strchrnul(target, '\n');
1607         strbuf_add(&cb->buf, target, end - target);
1608         if (!strcmp(cb->buf.buf, "HEAD")) {
1609                 /* HEAD is relative. Resolve it to the right reflog entry. */
1610                 strbuf_reset(&cb->buf);
1611                 strbuf_add_unique_abbrev(&cb->buf, noid, DEFAULT_ABBREV);
1612         }
1613         return 1;
1614 }
1615
1616 static void wt_status_get_detached_from(struct repository *r,
1617                                         struct wt_status_state *state)
1618 {
1619         struct grab_1st_switch_cbdata cb;
1620         struct commit *commit;
1621         struct object_id oid;
1622         char *ref = NULL;
1623
1624         strbuf_init(&cb.buf, 0);
1625         if (for_each_reflog_ent_reverse("HEAD", grab_1st_switch, &cb) <= 0) {
1626                 strbuf_release(&cb.buf);
1627                 return;
1628         }
1629
1630         if (dwim_ref(cb.buf.buf, cb.buf.len, &oid, &ref, 1) == 1 &&
1631             /* oid is a commit? match without further lookup */
1632             (oideq(&cb.noid, &oid) ||
1633              /* perhaps oid is a tag, try to dereference to a commit */
1634              ((commit = lookup_commit_reference_gently(r, &oid, 1)) != NULL &&
1635               oideq(&cb.noid, &commit->object.oid)))) {
1636                 const char *from = ref;
1637                 if (!skip_prefix(from, "refs/tags/", &from))
1638                         skip_prefix(from, "refs/remotes/", &from);
1639                 state->detached_from = xstrdup(from);
1640         } else
1641                 state->detached_from =
1642                         xstrdup(find_unique_abbrev(&cb.noid, DEFAULT_ABBREV));
1643         oidcpy(&state->detached_oid, &cb.noid);
1644         state->detached_at = !get_oid("HEAD", &oid) &&
1645                              oideq(&oid, &state->detached_oid);
1646
1647         free(ref);
1648         strbuf_release(&cb.buf);
1649 }
1650
1651 int wt_status_check_rebase(const struct worktree *wt,
1652                            struct wt_status_state *state)
1653 {
1654         struct stat st;
1655
1656         if (!stat(worktree_git_path(wt, "rebase-apply"), &st)) {
1657                 if (!stat(worktree_git_path(wt, "rebase-apply/applying"), &st)) {
1658                         state->am_in_progress = 1;
1659                         if (!stat(worktree_git_path(wt, "rebase-apply/patch"), &st) && !st.st_size)
1660                                 state->am_empty_patch = 1;
1661                 } else {
1662                         state->rebase_in_progress = 1;
1663                         state->branch = get_branch(wt, "rebase-apply/head-name");
1664                         state->onto = get_branch(wt, "rebase-apply/onto");
1665                 }
1666         } else if (!stat(worktree_git_path(wt, "rebase-merge"), &st)) {
1667                 if (!stat(worktree_git_path(wt, "rebase-merge/interactive"), &st))
1668                         state->rebase_interactive_in_progress = 1;
1669                 else
1670                         state->rebase_in_progress = 1;
1671                 state->branch = get_branch(wt, "rebase-merge/head-name");
1672                 state->onto = get_branch(wt, "rebase-merge/onto");
1673         } else
1674                 return 0;
1675         return 1;
1676 }
1677
1678 int wt_status_check_bisect(const struct worktree *wt,
1679                            struct wt_status_state *state)
1680 {
1681         struct stat st;
1682
1683         if (!stat(worktree_git_path(wt, "BISECT_LOG"), &st)) {
1684                 state->bisect_in_progress = 1;
1685                 state->branch = get_branch(wt, "BISECT_START");
1686                 return 1;
1687         }
1688         return 0;
1689 }
1690
1691 static void wt_status_check_sparse_checkout(struct repository *r,
1692                                             struct wt_status_state *state)
1693 {
1694         int skip_worktree = 0;
1695         int i;
1696
1697         if (!core_apply_sparse_checkout || r->index->cache_nr == 0) {
1698                 /*
1699                  * Don't compute percentage of checked out files if we
1700                  * aren't in a sparse checkout or would get division by 0.
1701                  */
1702                 state->sparse_checkout_percentage = SPARSE_CHECKOUT_DISABLED;
1703                 return;
1704         }
1705
1706         if (r->index->sparse_index) {
1707                 state->sparse_checkout_percentage = SPARSE_CHECKOUT_SPARSE_INDEX;
1708                 return;
1709         }
1710
1711         for (i = 0; i < r->index->cache_nr; i++) {
1712                 struct cache_entry *ce = r->index->cache[i];
1713                 if (ce_skip_worktree(ce))
1714                         skip_worktree++;
1715         }
1716
1717         state->sparse_checkout_percentage =
1718                 100 - (100 * skip_worktree)/r->index->cache_nr;
1719 }
1720
1721 void wt_status_get_state(struct repository *r,
1722                          struct wt_status_state *state,
1723                          int get_detached_from)
1724 {
1725         struct stat st;
1726         struct object_id oid;
1727         enum replay_action action;
1728
1729         if (!stat(git_path_merge_head(r), &st)) {
1730                 wt_status_check_rebase(NULL, state);
1731                 state->merge_in_progress = 1;
1732         } else if (wt_status_check_rebase(NULL, state)) {
1733                 ;               /* all set */
1734         } else if (refs_ref_exists(get_main_ref_store(r), "CHERRY_PICK_HEAD") &&
1735                    !get_oid("CHERRY_PICK_HEAD", &oid)) {
1736                 state->cherry_pick_in_progress = 1;
1737                 oidcpy(&state->cherry_pick_head_oid, &oid);
1738         }
1739         wt_status_check_bisect(NULL, state);
1740         if (refs_ref_exists(get_main_ref_store(r), "REVERT_HEAD") &&
1741             !get_oid("REVERT_HEAD", &oid)) {
1742                 state->revert_in_progress = 1;
1743                 oidcpy(&state->revert_head_oid, &oid);
1744         }
1745         if (!sequencer_get_last_command(r, &action)) {
1746                 if (action == REPLAY_PICK) {
1747                         state->cherry_pick_in_progress = 1;
1748                         oidcpy(&state->cherry_pick_head_oid, &null_oid);
1749                 } else {
1750                         state->revert_in_progress = 1;
1751                         oidcpy(&state->revert_head_oid, &null_oid);
1752                 }
1753         }
1754         if (get_detached_from)
1755                 wt_status_get_detached_from(r, state);
1756         wt_status_check_sparse_checkout(r, state);
1757 }
1758
1759 static void wt_longstatus_print_state(struct wt_status *s)
1760 {
1761         const char *state_color = color(WT_STATUS_HEADER, s);
1762         struct wt_status_state *state = &s->state;
1763
1764         if (state->merge_in_progress) {
1765                 if (state->rebase_interactive_in_progress) {
1766                         show_rebase_information(s, state_color);
1767                         fputs("\n", s->fp);
1768                 }
1769                 show_merge_in_progress(s, state_color);
1770         } else if (state->am_in_progress)
1771                 show_am_in_progress(s, state_color);
1772         else if (state->rebase_in_progress || state->rebase_interactive_in_progress)
1773                 show_rebase_in_progress(s, state_color);
1774         else if (state->cherry_pick_in_progress)
1775                 show_cherry_pick_in_progress(s, state_color);
1776         else if (state->revert_in_progress)
1777                 show_revert_in_progress(s, state_color);
1778         if (state->bisect_in_progress)
1779                 show_bisect_in_progress(s, state_color);
1780
1781         if (state->sparse_checkout_percentage != SPARSE_CHECKOUT_DISABLED)
1782                 show_sparse_checkout_in_use(s, state_color);
1783 }
1784
1785 static void wt_longstatus_print(struct wt_status *s)
1786 {
1787         const char *branch_color = color(WT_STATUS_ONBRANCH, s);
1788         const char *branch_status_color = color(WT_STATUS_HEADER, s);
1789
1790         if (s->branch) {
1791                 const char *on_what = _("On branch ");
1792                 const char *branch_name = s->branch;
1793                 if (!strcmp(branch_name, "HEAD")) {
1794                         branch_status_color = color(WT_STATUS_NOBRANCH, s);
1795                         if (s->state.rebase_in_progress ||
1796                             s->state.rebase_interactive_in_progress) {
1797                                 if (s->state.rebase_interactive_in_progress)
1798                                         on_what = _("interactive rebase in progress; onto ");
1799                                 else
1800                                         on_what = _("rebase in progress; onto ");
1801                                 branch_name = s->state.onto;
1802                         } else if (s->state.detached_from) {
1803                                 branch_name = s->state.detached_from;
1804                                 if (s->state.detached_at)
1805                                         on_what = _("HEAD detached at ");
1806                                 else
1807                                         on_what = _("HEAD detached from ");
1808                         } else {
1809                                 branch_name = "";
1810                                 on_what = _("Not currently on any branch.");
1811                         }
1812                 } else
1813                         skip_prefix(branch_name, "refs/heads/", &branch_name);
1814                 status_printf(s, color(WT_STATUS_HEADER, s), "%s", "");
1815                 status_printf_more(s, branch_status_color, "%s", on_what);
1816                 status_printf_more(s, branch_color, "%s\n", branch_name);
1817                 if (!s->is_initial)
1818                         wt_longstatus_print_tracking(s);
1819         }
1820
1821         wt_longstatus_print_state(s);
1822
1823         if (s->is_initial) {
1824                 status_printf_ln(s, color(WT_STATUS_HEADER, s), "%s", "");
1825                 status_printf_ln(s, color(WT_STATUS_HEADER, s),
1826                                  s->commit_template
1827                                  ? _("Initial commit")
1828                                  : _("No commits yet"));
1829                 status_printf_ln(s, color(WT_STATUS_HEADER, s), "%s", "");
1830         }
1831
1832         wt_longstatus_print_updated(s);
1833         wt_longstatus_print_unmerged(s);
1834         wt_longstatus_print_changed(s);
1835         if (s->submodule_summary &&
1836             (!s->ignore_submodule_arg ||
1837              strcmp(s->ignore_submodule_arg, "all"))) {
1838                 wt_longstatus_print_submodule_summary(s, 0);  /* staged */
1839                 wt_longstatus_print_submodule_summary(s, 1);  /* unstaged */
1840         }
1841         if (s->show_untracked_files) {
1842                 wt_longstatus_print_other(s, &s->untracked, _("Untracked files"), "add");
1843                 if (s->show_ignored_mode)
1844                         wt_longstatus_print_other(s, &s->ignored, _("Ignored files"), "add -f");
1845                 if (advice_status_u_option && 2000 < s->untracked_in_ms) {
1846                         status_printf_ln(s, GIT_COLOR_NORMAL, "%s", "");
1847                         status_printf_ln(s, GIT_COLOR_NORMAL,
1848                                          _("It took %.2f seconds to enumerate untracked files. 'status -uno'\n"
1849                                            "may speed it up, but you have to be careful not to forget to add\n"
1850                                            "new files yourself (see 'git help status')."),
1851                                          s->untracked_in_ms / 1000.0);
1852                 }
1853         } else if (s->committable)
1854                 status_printf_ln(s, GIT_COLOR_NORMAL, _("Untracked files not listed%s"),
1855                         s->hints
1856                         ? _(" (use -u option to show untracked files)") : "");
1857
1858         if (s->verbose)
1859                 wt_longstatus_print_verbose(s);
1860         if (!s->committable) {
1861                 if (s->amend)
1862                         status_printf_ln(s, GIT_COLOR_NORMAL, _("No changes"));
1863                 else if (s->nowarn)
1864                         ; /* nothing */
1865                 else if (s->workdir_dirty) {
1866                         if (s->hints)
1867                                 fprintf(s->fp, _("no changes added to commit "
1868                                                  "(use \"git add\" and/or "
1869                                                  "\"git commit -a\")\n"));
1870                         else
1871                                 fprintf(s->fp, _("no changes added to "
1872                                                  "commit\n"));
1873                 } else if (s->untracked.nr) {
1874                         if (s->hints)
1875                                 fprintf(s->fp, _("nothing added to commit but "
1876                                                  "untracked files present (use "
1877                                                  "\"git add\" to track)\n"));
1878                         else
1879                                 fprintf(s->fp, _("nothing added to commit but "
1880                                                  "untracked files present\n"));
1881                 } else if (s->is_initial) {
1882                         if (s->hints)
1883                                 fprintf(s->fp, _("nothing to commit (create/"
1884                                                  "copy files and use \"git "
1885                                                  "add\" to track)\n"));
1886                         else
1887                                 fprintf(s->fp, _("nothing to commit\n"));
1888                 } else if (!s->show_untracked_files) {
1889                         if (s->hints)
1890                                 fprintf(s->fp, _("nothing to commit (use -u to "
1891                                                  "show untracked files)\n"));
1892                         else
1893                                 fprintf(s->fp, _("nothing to commit\n"));
1894                 } else
1895                         fprintf(s->fp, _("nothing to commit, working tree "
1896                                          "clean\n"));
1897         }
1898         if(s->show_stash)
1899                 wt_longstatus_print_stash_summary(s);
1900 }
1901
1902 static void wt_shortstatus_unmerged(struct string_list_item *it,
1903                            struct wt_status *s)
1904 {
1905         struct wt_status_change_data *d = it->util;
1906         const char *how = "??";
1907
1908         switch (d->stagemask) {
1909         case 1: how = "DD"; break; /* both deleted */
1910         case 2: how = "AU"; break; /* added by us */
1911         case 3: how = "UD"; break; /* deleted by them */
1912         case 4: how = "UA"; break; /* added by them */
1913         case 5: how = "DU"; break; /* deleted by us */
1914         case 6: how = "AA"; break; /* both added */
1915         case 7: how = "UU"; break; /* both modified */
1916         }
1917         color_fprintf(s->fp, color(WT_STATUS_UNMERGED, s), "%s", how);
1918         if (s->null_termination) {
1919                 fprintf(s->fp, " %s%c", it->string, 0);
1920         } else {
1921                 struct strbuf onebuf = STRBUF_INIT;
1922                 const char *one;
1923                 one = quote_path(it->string, s->prefix, &onebuf, QUOTE_PATH_QUOTE_SP);
1924                 fprintf(s->fp, " %s\n", one);
1925                 strbuf_release(&onebuf);
1926         }
1927 }
1928
1929 static void wt_shortstatus_status(struct string_list_item *it,
1930                          struct wt_status *s)
1931 {
1932         struct wt_status_change_data *d = it->util;
1933
1934         if (d->index_status)
1935                 color_fprintf(s->fp, color(WT_STATUS_UPDATED, s), "%c", d->index_status);
1936         else
1937                 fputc(' ', s->fp);
1938         if (d->worktree_status)
1939                 color_fprintf(s->fp, color(WT_STATUS_CHANGED, s), "%c", d->worktree_status);
1940         else
1941                 fputc(' ', s->fp);
1942         fputc(' ', s->fp);
1943         if (s->null_termination) {
1944                 fprintf(s->fp, "%s%c", it->string, 0);
1945                 if (d->rename_source)
1946                         fprintf(s->fp, "%s%c", d->rename_source, 0);
1947         } else {
1948                 struct strbuf onebuf = STRBUF_INIT;
1949                 const char *one;
1950
1951                 if (d->rename_source) {
1952                         one = quote_path(d->rename_source, s->prefix, &onebuf,
1953                                          QUOTE_PATH_QUOTE_SP);
1954                         fprintf(s->fp, "%s -> ", one);
1955                         strbuf_release(&onebuf);
1956                 }
1957                 one = quote_path(it->string, s->prefix, &onebuf, QUOTE_PATH_QUOTE_SP);
1958                 fprintf(s->fp, "%s\n", one);
1959                 strbuf_release(&onebuf);
1960         }
1961 }
1962
1963 static void wt_shortstatus_other(struct string_list_item *it,
1964                                  struct wt_status *s, const char *sign)
1965 {
1966         if (s->null_termination) {
1967                 fprintf(s->fp, "%s %s%c", sign, it->string, 0);
1968         } else {
1969                 struct strbuf onebuf = STRBUF_INIT;
1970                 const char *one;
1971                 one = quote_path(it->string, s->prefix, &onebuf, QUOTE_PATH_QUOTE_SP);
1972                 color_fprintf(s->fp, color(WT_STATUS_UNTRACKED, s), "%s", sign);
1973                 fprintf(s->fp, " %s\n", one);
1974                 strbuf_release(&onebuf);
1975         }
1976 }
1977
1978 static void wt_shortstatus_print_tracking(struct wt_status *s)
1979 {
1980         struct branch *branch;
1981         const char *header_color = color(WT_STATUS_HEADER, s);
1982         const char *branch_color_local = color(WT_STATUS_LOCAL_BRANCH, s);
1983         const char *branch_color_remote = color(WT_STATUS_REMOTE_BRANCH, s);
1984
1985         const char *base;
1986         char *short_base;
1987         const char *branch_name;
1988         int num_ours, num_theirs, sti;
1989         int upstream_is_gone = 0;
1990
1991         color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "## ");
1992
1993         if (!s->branch)
1994                 return;
1995         branch_name = s->branch;
1996
1997 #define LABEL(string) (s->no_gettext ? (string) : _(string))
1998
1999         if (s->is_initial)
2000                 color_fprintf(s->fp, header_color, LABEL(N_("No commits yet on ")));
2001
2002         if (!strcmp(s->branch, "HEAD")) {
2003                 color_fprintf(s->fp, color(WT_STATUS_NOBRANCH, s), "%s",
2004                               LABEL(N_("HEAD (no branch)")));
2005                 goto conclude;
2006         }
2007
2008         skip_prefix(branch_name, "refs/heads/", &branch_name);
2009
2010         branch = branch_get(branch_name);
2011
2012         color_fprintf(s->fp, branch_color_local, "%s", branch_name);
2013
2014         sti = stat_tracking_info(branch, &num_ours, &num_theirs, &base,
2015                                  0, s->ahead_behind_flags);
2016         if (sti < 0) {
2017                 if (!base)
2018                         goto conclude;
2019
2020                 upstream_is_gone = 1;
2021         }
2022
2023         short_base = shorten_unambiguous_ref(base, 0);
2024         color_fprintf(s->fp, header_color, "...");
2025         color_fprintf(s->fp, branch_color_remote, "%s", short_base);
2026         free(short_base);
2027
2028         if (!upstream_is_gone && !sti)
2029                 goto conclude;
2030
2031         color_fprintf(s->fp, header_color, " [");
2032         if (upstream_is_gone) {
2033                 color_fprintf(s->fp, header_color, LABEL(N_("gone")));
2034         } else if (s->ahead_behind_flags == AHEAD_BEHIND_QUICK) {
2035                 color_fprintf(s->fp, header_color, LABEL(N_("different")));
2036         } else if (!num_ours) {
2037                 color_fprintf(s->fp, header_color, LABEL(N_("behind ")));
2038                 color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
2039         } else if (!num_theirs) {
2040                 color_fprintf(s->fp, header_color, LABEL(N_("ahead ")));
2041                 color_fprintf(s->fp, branch_color_local, "%d", num_ours);
2042         } else {
2043                 color_fprintf(s->fp, header_color, LABEL(N_("ahead ")));
2044                 color_fprintf(s->fp, branch_color_local, "%d", num_ours);
2045                 color_fprintf(s->fp, header_color, ", %s", LABEL(N_("behind ")));
2046                 color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
2047         }
2048
2049         color_fprintf(s->fp, header_color, "]");
2050  conclude:
2051         fputc(s->null_termination ? '\0' : '\n', s->fp);
2052 }
2053
2054 static void wt_shortstatus_print(struct wt_status *s)
2055 {
2056         struct string_list_item *it;
2057
2058         if (s->show_branch)
2059                 wt_shortstatus_print_tracking(s);
2060
2061         for_each_string_list_item(it, &s->change) {
2062                 struct wt_status_change_data *d = it->util;
2063
2064                 if (d->stagemask)
2065                         wt_shortstatus_unmerged(it, s);
2066                 else
2067                         wt_shortstatus_status(it, s);
2068         }
2069         for_each_string_list_item(it, &s->untracked)
2070                 wt_shortstatus_other(it, s, "??");
2071
2072         for_each_string_list_item(it, &s->ignored)
2073                 wt_shortstatus_other(it, s, "!!");
2074 }
2075
2076 static void wt_porcelain_print(struct wt_status *s)
2077 {
2078         s->use_color = 0;
2079         s->relative_paths = 0;
2080         s->prefix = NULL;
2081         s->no_gettext = 1;
2082         wt_shortstatus_print(s);
2083 }
2084
2085 /*
2086  * Print branch information for porcelain v2 output.  These lines
2087  * are printed when the '--branch' parameter is given.
2088  *
2089  *    # branch.oid <commit><eol>
2090  *    # branch.head <head><eol>
2091  *   [# branch.upstream <upstream><eol>
2092  *   [# branch.ab +<ahead> -<behind><eol>]]
2093  *
2094  *      <commit> ::= the current commit hash or the literal
2095  *                   "(initial)" to indicate an initialized repo
2096  *                   with no commits.
2097  *
2098  *        <head> ::= <branch_name> the current branch name or
2099  *                   "(detached)" literal when detached head or
2100  *                   "(unknown)" when something is wrong.
2101  *
2102  *    <upstream> ::= the upstream branch name, when set.
2103  *
2104  *       <ahead> ::= integer ahead value or '?'.
2105  *
2106  *      <behind> ::= integer behind value or '?'.
2107  *
2108  * The end-of-line is defined by the -z flag.
2109  *
2110  *                 <eol> ::= NUL when -z,
2111  *                           LF when NOT -z.
2112  *
2113  * When an upstream is set and present, the 'branch.ab' line will
2114  * be printed with the ahead/behind counts for the branch and the
2115  * upstream.  When AHEAD_BEHIND_QUICK is requested and the branches
2116  * are different, '?' will be substituted for the actual count.
2117  */
2118 static void wt_porcelain_v2_print_tracking(struct wt_status *s)
2119 {
2120         struct branch *branch;
2121         const char *base;
2122         const char *branch_name;
2123         int ab_info, nr_ahead, nr_behind;
2124         char eol = s->null_termination ? '\0' : '\n';
2125
2126         fprintf(s->fp, "# branch.oid %s%c",
2127                         (s->is_initial ? "(initial)" : oid_to_hex(&s->oid_commit)),
2128                         eol);
2129
2130         if (!s->branch)
2131                 fprintf(s->fp, "# branch.head %s%c", "(unknown)", eol);
2132         else {
2133                 if (!strcmp(s->branch, "HEAD")) {
2134                         fprintf(s->fp, "# branch.head %s%c", "(detached)", eol);
2135
2136                         if (s->state.rebase_in_progress ||
2137                             s->state.rebase_interactive_in_progress)
2138                                 branch_name = s->state.onto;
2139                         else if (s->state.detached_from)
2140                                 branch_name = s->state.detached_from;
2141                         else
2142                                 branch_name = "";
2143                 } else {
2144                         branch_name = NULL;
2145                         skip_prefix(s->branch, "refs/heads/", &branch_name);
2146
2147                         fprintf(s->fp, "# branch.head %s%c", branch_name, eol);
2148                 }
2149
2150                 /* Lookup stats on the upstream tracking branch, if set. */
2151                 branch = branch_get(branch_name);
2152                 base = NULL;
2153                 ab_info = stat_tracking_info(branch, &nr_ahead, &nr_behind,
2154                                              &base, 0, s->ahead_behind_flags);
2155                 if (base) {
2156                         base = shorten_unambiguous_ref(base, 0);
2157                         fprintf(s->fp, "# branch.upstream %s%c", base, eol);
2158                         free((char *)base);
2159
2160                         if (ab_info > 0) {
2161                                 /* different */
2162                                 if (nr_ahead || nr_behind)
2163                                         fprintf(s->fp, "# branch.ab +%d -%d%c",
2164                                                 nr_ahead, nr_behind, eol);
2165                                 else
2166                                         fprintf(s->fp, "# branch.ab +? -?%c",
2167                                                 eol);
2168                         } else if (!ab_info) {
2169                                 /* same */
2170                                 fprintf(s->fp, "# branch.ab +0 -0%c", eol);
2171                         }
2172                 }
2173         }
2174 }
2175
2176 /*
2177  * Convert various submodule status values into a
2178  * fixed-length string of characters in the buffer provided.
2179  */
2180 static void wt_porcelain_v2_submodule_state(
2181         struct wt_status_change_data *d,
2182         char sub[5])
2183 {
2184         if (S_ISGITLINK(d->mode_head) ||
2185                 S_ISGITLINK(d->mode_index) ||
2186                 S_ISGITLINK(d->mode_worktree)) {
2187                 sub[0] = 'S';
2188                 sub[1] = d->new_submodule_commits ? 'C' : '.';
2189                 sub[2] = (d->dirty_submodule & DIRTY_SUBMODULE_MODIFIED) ? 'M' : '.';
2190                 sub[3] = (d->dirty_submodule & DIRTY_SUBMODULE_UNTRACKED) ? 'U' : '.';
2191         } else {
2192                 sub[0] = 'N';
2193                 sub[1] = '.';
2194                 sub[2] = '.';
2195                 sub[3] = '.';
2196         }
2197         sub[4] = 0;
2198 }
2199
2200 /*
2201  * Fix-up changed entries before we print them.
2202  */
2203 static void wt_porcelain_v2_fix_up_changed(struct string_list_item *it)
2204 {
2205         struct wt_status_change_data *d = it->util;
2206
2207         if (!d->index_status) {
2208                 /*
2209                  * This entry is unchanged in the index (relative to the head).
2210                  * Therefore, the collect_updated_cb was never called for this
2211                  * entry (during the head-vs-index scan) and so the head column
2212                  * fields were never set.
2213                  *
2214                  * We must have data for the index column (from the
2215                  * index-vs-worktree scan (otherwise, this entry should not be
2216                  * in the list of changes)).
2217                  *
2218                  * Copy index column fields to the head column, so that our
2219                  * output looks complete.
2220                  */
2221                 assert(d->mode_head == 0);
2222                 d->mode_head = d->mode_index;
2223                 oidcpy(&d->oid_head, &d->oid_index);
2224         }
2225
2226         if (!d->worktree_status) {
2227                 /*
2228                  * This entry is unchanged in the worktree (relative to the index).
2229                  * Therefore, the collect_changed_cb was never called for this entry
2230                  * (during the index-vs-worktree scan) and so the worktree column
2231                  * fields were never set.
2232                  *
2233                  * We must have data for the index column (from the head-vs-index
2234                  * scan).
2235                  *
2236                  * Copy the index column fields to the worktree column so that
2237                  * our output looks complete.
2238                  *
2239                  * Note that we only have a mode field in the worktree column
2240                  * because the scan code tries really hard to not have to compute it.
2241                  */
2242                 assert(d->mode_worktree == 0);
2243                 d->mode_worktree = d->mode_index;
2244         }
2245 }
2246
2247 /*
2248  * Print porcelain v2 info for tracked entries with changes.
2249  */
2250 static void wt_porcelain_v2_print_changed_entry(
2251         struct string_list_item *it,
2252         struct wt_status *s)
2253 {
2254         struct wt_status_change_data *d = it->util;
2255         struct strbuf buf = STRBUF_INIT;
2256         struct strbuf buf_from = STRBUF_INIT;
2257         const char *path = NULL;
2258         const char *path_from = NULL;
2259         char key[3];
2260         char submodule_token[5];
2261         char sep_char, eol_char;
2262
2263         wt_porcelain_v2_fix_up_changed(it);
2264         wt_porcelain_v2_submodule_state(d, submodule_token);
2265
2266         key[0] = d->index_status ? d->index_status : '.';
2267         key[1] = d->worktree_status ? d->worktree_status : '.';
2268         key[2] = 0;
2269
2270         if (s->null_termination) {
2271                 /*
2272                  * In -z mode, we DO NOT C-quote pathnames.  Current path is ALWAYS first.
2273                  * A single NUL character separates them.
2274                  */
2275                 sep_char = '\0';
2276                 eol_char = '\0';
2277                 path = it->string;
2278                 path_from = d->rename_source;
2279         } else {
2280                 /*
2281                  * Path(s) are C-quoted if necessary. Current path is ALWAYS first.
2282                  * The source path is only present when necessary.
2283                  * A single TAB separates them (because paths can contain spaces
2284                  * which are not escaped and C-quoting does escape TAB characters).
2285                  */
2286                 sep_char = '\t';
2287                 eol_char = '\n';
2288                 path = quote_path(it->string, s->prefix, &buf, 0);
2289                 if (d->rename_source)
2290                         path_from = quote_path(d->rename_source, s->prefix, &buf_from, 0);
2291         }
2292
2293         if (path_from)
2294                 fprintf(s->fp, "2 %s %s %06o %06o %06o %s %s %c%d %s%c%s%c",
2295                                 key, submodule_token,
2296                                 d->mode_head, d->mode_index, d->mode_worktree,
2297                                 oid_to_hex(&d->oid_head), oid_to_hex(&d->oid_index),
2298                                 d->rename_status, d->rename_score,
2299                                 path, sep_char, path_from, eol_char);
2300         else
2301                 fprintf(s->fp, "1 %s %s %06o %06o %06o %s %s %s%c",
2302                                 key, submodule_token,
2303                                 d->mode_head, d->mode_index, d->mode_worktree,
2304                                 oid_to_hex(&d->oid_head), oid_to_hex(&d->oid_index),
2305                                 path, eol_char);
2306
2307         strbuf_release(&buf);
2308         strbuf_release(&buf_from);
2309 }
2310
2311 /*
2312  * Print porcelain v2 status info for unmerged entries.
2313  */
2314 static void wt_porcelain_v2_print_unmerged_entry(
2315         struct string_list_item *it,
2316         struct wt_status *s)
2317 {
2318         struct wt_status_change_data *d = it->util;
2319         struct index_state *istate = s->repo->index;
2320         const struct cache_entry *ce;
2321         struct strbuf buf_index = STRBUF_INIT;
2322         const char *path_index = NULL;
2323         int pos, stage, sum;
2324         struct {
2325                 int mode;
2326                 struct object_id oid;
2327         } stages[3];
2328         char *key;
2329         char submodule_token[5];
2330         char unmerged_prefix = 'u';
2331         char eol_char = s->null_termination ? '\0' : '\n';
2332
2333         wt_porcelain_v2_submodule_state(d, submodule_token);
2334
2335         switch (d->stagemask) {
2336         case 1: key = "DD"; break; /* both deleted */
2337         case 2: key = "AU"; break; /* added by us */
2338         case 3: key = "UD"; break; /* deleted by them */
2339         case 4: key = "UA"; break; /* added by them */
2340         case 5: key = "DU"; break; /* deleted by us */
2341         case 6: key = "AA"; break; /* both added */
2342         case 7: key = "UU"; break; /* both modified */
2343         default:
2344                 BUG("unhandled unmerged status %x", d->stagemask);
2345         }
2346
2347         /*
2348          * Disregard d.aux.porcelain_v2 data that we accumulated
2349          * for the head and index columns during the scans and
2350          * replace with the actual stage data.
2351          *
2352          * Note that this is a last-one-wins for each the individual
2353          * stage [123] columns in the event of multiple cache entries
2354          * for same stage.
2355          */
2356         memset(stages, 0, sizeof(stages));
2357         sum = 0;
2358         pos = index_name_pos(istate, it->string, strlen(it->string));
2359         assert(pos < 0);
2360         pos = -pos-1;
2361         while (pos < istate->cache_nr) {
2362                 ce = istate->cache[pos++];
2363                 stage = ce_stage(ce);
2364                 if (strcmp(ce->name, it->string) || !stage)
2365                         break;
2366                 stages[stage - 1].mode = ce->ce_mode;
2367                 oidcpy(&stages[stage - 1].oid, &ce->oid);
2368                 sum |= (1 << (stage - 1));
2369         }
2370         if (sum != d->stagemask)
2371                 BUG("observed stagemask 0x%x != expected stagemask 0x%x", sum, d->stagemask);
2372
2373         if (s->null_termination)
2374                 path_index = it->string;
2375         else
2376                 path_index = quote_path(it->string, s->prefix, &buf_index, 0);
2377
2378         fprintf(s->fp, "%c %s %s %06o %06o %06o %06o %s %s %s %s%c",
2379                         unmerged_prefix, key, submodule_token,
2380                         stages[0].mode, /* stage 1 */
2381                         stages[1].mode, /* stage 2 */
2382                         stages[2].mode, /* stage 3 */
2383                         d->mode_worktree,
2384                         oid_to_hex(&stages[0].oid), /* stage 1 */
2385                         oid_to_hex(&stages[1].oid), /* stage 2 */
2386                         oid_to_hex(&stages[2].oid), /* stage 3 */
2387                         path_index,
2388                         eol_char);
2389
2390         strbuf_release(&buf_index);
2391 }
2392
2393 /*
2394  * Print porcelain V2 status info for untracked and ignored entries.
2395  */
2396 static void wt_porcelain_v2_print_other(
2397         struct string_list_item *it,
2398         struct wt_status *s,
2399         char prefix)
2400 {
2401         struct strbuf buf = STRBUF_INIT;
2402         const char *path;
2403         char eol_char;
2404
2405         if (s->null_termination) {
2406                 path = it->string;
2407                 eol_char = '\0';
2408         } else {
2409                 path = quote_path(it->string, s->prefix, &buf, 0);
2410                 eol_char = '\n';
2411         }
2412
2413         fprintf(s->fp, "%c %s%c", prefix, path, eol_char);
2414
2415         strbuf_release(&buf);
2416 }
2417
2418 /*
2419  * Print porcelain V2 status.
2420  *
2421  * [<v2_branch>]
2422  * [<v2_changed_items>]*
2423  * [<v2_unmerged_items>]*
2424  * [<v2_untracked_items>]*
2425  * [<v2_ignored_items>]*
2426  *
2427  */
2428 static void wt_porcelain_v2_print(struct wt_status *s)
2429 {
2430         struct wt_status_change_data *d;
2431         struct string_list_item *it;
2432         int i;
2433
2434         if (s->show_branch)
2435                 wt_porcelain_v2_print_tracking(s);
2436
2437         for (i = 0; i < s->change.nr; i++) {
2438                 it = &(s->change.items[i]);
2439                 d = it->util;
2440                 if (!d->stagemask)
2441                         wt_porcelain_v2_print_changed_entry(it, s);
2442         }
2443
2444         for (i = 0; i < s->change.nr; i++) {
2445                 it = &(s->change.items[i]);
2446                 d = it->util;
2447                 if (d->stagemask)
2448                         wt_porcelain_v2_print_unmerged_entry(it, s);
2449         }
2450
2451         for (i = 0; i < s->untracked.nr; i++) {
2452                 it = &(s->untracked.items[i]);
2453                 wt_porcelain_v2_print_other(it, s, '?');
2454         }
2455
2456         for (i = 0; i < s->ignored.nr; i++) {
2457                 it = &(s->ignored.items[i]);
2458                 wt_porcelain_v2_print_other(it, s, '!');
2459         }
2460 }
2461
2462 void wt_status_print(struct wt_status *s)
2463 {
2464         trace2_data_intmax("status", s->repo, "count/changed", s->change.nr);
2465         trace2_data_intmax("status", s->repo, "count/untracked",
2466                            s->untracked.nr);
2467         trace2_data_intmax("status", s->repo, "count/ignored", s->ignored.nr);
2468
2469         trace2_region_enter("status", "print", s->repo);
2470
2471         switch (s->status_format) {
2472         case STATUS_FORMAT_SHORT:
2473                 wt_shortstatus_print(s);
2474                 break;
2475         case STATUS_FORMAT_PORCELAIN:
2476                 wt_porcelain_print(s);
2477                 break;
2478         case STATUS_FORMAT_PORCELAIN_V2:
2479                 wt_porcelain_v2_print(s);
2480                 break;
2481         case STATUS_FORMAT_UNSPECIFIED:
2482                 BUG("finalize_deferred_config() should have been called");
2483                 break;
2484         case STATUS_FORMAT_NONE:
2485         case STATUS_FORMAT_LONG:
2486                 wt_longstatus_print(s);
2487                 break;
2488         }
2489
2490         trace2_region_leave("status", "print", s->repo);
2491 }
2492
2493 /**
2494  * Returns 1 if there are unstaged changes, 0 otherwise.
2495  */
2496 int has_unstaged_changes(struct repository *r, int ignore_submodules)
2497 {
2498         struct rev_info rev_info;
2499         int result;
2500
2501         repo_init_revisions(r, &rev_info, NULL);
2502         if (ignore_submodules) {
2503                 rev_info.diffopt.flags.ignore_submodules = 1;
2504                 rev_info.diffopt.flags.override_submodule_config = 1;
2505         }
2506         rev_info.diffopt.flags.quick = 1;
2507         diff_setup_done(&rev_info.diffopt);
2508         result = run_diff_files(&rev_info, 0);
2509         return diff_result_code(&rev_info.diffopt, result);
2510 }
2511
2512 /**
2513  * Returns 1 if there are uncommitted changes, 0 otherwise.
2514  */
2515 int has_uncommitted_changes(struct repository *r,
2516                             int ignore_submodules)
2517 {
2518         struct rev_info rev_info;
2519         int result;
2520
2521         if (is_index_unborn(r->index))
2522                 return 0;
2523
2524         repo_init_revisions(r, &rev_info, NULL);
2525         if (ignore_submodules)
2526                 rev_info.diffopt.flags.ignore_submodules = 1;
2527         rev_info.diffopt.flags.quick = 1;
2528
2529         add_head_to_pending(&rev_info);
2530         if (!rev_info.pending.nr) {
2531                 /*
2532                  * We have no head (or it's corrupt); use the empty tree,
2533                  * which will complain if the index is non-empty.
2534                  */
2535                 struct tree *tree = lookup_tree(r, the_hash_algo->empty_tree);
2536                 add_pending_object(&rev_info, &tree->object, "");
2537         }
2538
2539         diff_setup_done(&rev_info.diffopt);
2540         result = run_diff_index(&rev_info, 1);
2541         return diff_result_code(&rev_info.diffopt, result);
2542 }
2543
2544 /**
2545  * If the work tree has unstaged or uncommitted changes, dies with the
2546  * appropriate message.
2547  */
2548 int require_clean_work_tree(struct repository *r,
2549                             const char *action,
2550                             const char *hint,
2551                             int ignore_submodules,
2552                             int gently)
2553 {
2554         struct lock_file lock_file = LOCK_INIT;
2555         int err = 0, fd;
2556
2557         fd = repo_hold_locked_index(r, &lock_file, 0);
2558         refresh_index(r->index, REFRESH_QUIET, NULL, NULL, NULL);
2559         if (0 <= fd)
2560                 repo_update_index_if_able(r, &lock_file);
2561         rollback_lock_file(&lock_file);
2562
2563         if (has_unstaged_changes(r, ignore_submodules)) {
2564                 /* TRANSLATORS: the action is e.g. "pull with rebase" */
2565                 error(_("cannot %s: You have unstaged changes."), _(action));
2566                 err = 1;
2567         }
2568
2569         if (has_uncommitted_changes(r, ignore_submodules)) {
2570                 if (err)
2571                         error(_("additionally, your index contains uncommitted changes."));
2572                 else
2573                         error(_("cannot %s: Your index contains uncommitted changes."),
2574                               _(action));
2575                 err = 1;
2576         }
2577
2578         if (err) {
2579                 if (hint)
2580                         error("%s", hint);
2581                 if (!gently)
2582                         exit(128);
2583         }
2584
2585         return err;
2586 }