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

   1 #include "cache.h"
   2 #include "pathspec.h"
   3 #include "wt-status.h"
   4 #include "object.h"
   5 #include "dir.h"
   6 #include "commit.h"
   7 #include "diff.h"
   8 #include "revision.h"
   9 #include "diffcore.h"
  10 #include "quote.h"
  11 #include "run-command.h"
  12 #include "argv-array.h"
  13 #include "remote.h"
  14 #include "refs.h"
  15 #include "submodule.h"
  16 #include "column.h"
  17 #include "strbuf.h"
  18 #include "utf8.h"
  19
  20 static const char cut_line[] =
  21 "------------------------ >8 ------------------------\n";
  22
  23 static char default_wt_status_colors[][COLOR_MAXLEN] = {
  24         GIT_COLOR_NORMAL, /* WT_STATUS_HEADER */
  25         GIT_COLOR_GREEN,  /* WT_STATUS_UPDATED */
  26         GIT_COLOR_RED,    /* WT_STATUS_CHANGED */
  27         GIT_COLOR_RED,    /* WT_STATUS_UNTRACKED */
  28         GIT_COLOR_RED,    /* WT_STATUS_NOBRANCH */
  29         GIT_COLOR_RED,    /* WT_STATUS_UNMERGED */
  30         GIT_COLOR_GREEN,  /* WT_STATUS_LOCAL_BRANCH */
  31         GIT_COLOR_RED,    /* WT_STATUS_REMOTE_BRANCH */
  32         GIT_COLOR_NIL,    /* WT_STATUS_ONBRANCH */
  33 };
  34
  35 static const char *color(int slot, struct wt_status *s)
  36 {
  37         const char *c = "";
  38         if (want_color(s->use_color))
  39                 c = s->color_palette[slot];
  40         if (slot == WT_STATUS_ONBRANCH && color_is_nil(c))
  41                 c = s->color_palette[WT_STATUS_HEADER];
  42         return c;
  43 }
  44
  45 static void status_vprintf(struct wt_status *s, int at_bol, const char *color,
  46                 const char *fmt, va_list ap, const char *trail)
  47 {
  48         struct strbuf sb = STRBUF_INIT;
  49         struct strbuf linebuf = STRBUF_INIT;
  50         const char *line, *eol;
  51
  52         strbuf_vaddf(&sb, fmt, ap);
  53         if (!sb.len) {
  54                 if (s->display_comment_prefix) {
  55                         strbuf_addch(&sb, comment_line_char);
  56                         if (!trail)
  57                                 strbuf_addch(&sb, ' ');
  58                 }
  59                 color_print_strbuf(s->fp, color, &sb);
  60                 if (trail)
  61                         fprintf(s->fp, "%s", trail);
  62                 strbuf_release(&sb);
  63                 return;
  64         }
  65         for (line = sb.buf; *line; line = eol + 1) {
  66                 eol = strchr(line, '\n');
  67
  68                 strbuf_reset(&linebuf);
  69                 if (at_bol && s->display_comment_prefix) {
  70                         strbuf_addch(&linebuf, comment_line_char);
  71                         if (*line != '\n' && *line != '\t')
  72                                 strbuf_addch(&linebuf, ' ');
  73                 }
  74                 if (eol)
  75                         strbuf_add(&linebuf, line, eol - line);
  76                 else
  77                         strbuf_addstr(&linebuf, line);
  78                 color_print_strbuf(s->fp, color, &linebuf);
  79                 if (eol)
  80                         fprintf(s->fp, "\n");
  81                 else
  82                         break;
  83                 at_bol = 1;
  84         }
  85         if (trail)
  86                 fprintf(s->fp, "%s", trail);
  87         strbuf_release(&linebuf);
  88         strbuf_release(&sb);
  89 }
  90
  91 void status_printf_ln(struct wt_status *s, const char *color,
  92                         const char *fmt, ...)
  93 {
  94         va_list ap;
  95
  96         va_start(ap, fmt);
  97         status_vprintf(s, 1, color, fmt, ap, "\n");
  98         va_end(ap);
  99 }
 100
 101 void status_printf(struct wt_status *s, const char *color,
 102                         const char *fmt, ...)
 103 {
 104         va_list ap;
 105
 106         va_start(ap, fmt);
 107         status_vprintf(s, 1, color, fmt, ap, NULL);
 108         va_end(ap);
 109 }
 110
 111 static void status_printf_more(struct wt_status *s, const char *color,
 112                                const char *fmt, ...)
 113 {
 114         va_list ap;
 115
 116         va_start(ap, fmt);
 117         status_vprintf(s, 0, color, fmt, ap, NULL);
 118         va_end(ap);
 119 }
 120
 121 void wt_status_prepare(struct wt_status *s)
 122 {
 123         unsigned char sha1[20];
 124
 125         memset(s, 0, sizeof(*s));
 126         memcpy(s->color_palette, default_wt_status_colors,
 127                sizeof(default_wt_status_colors));
 128         s->show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
 129         s->use_color = -1;
 130         s->relative_paths = 1;
 131         s->branch = resolve_refdup("HEAD", sha1, 0, NULL);
 132         s->reference = "HEAD";
 133         s->fp = stdout;
 134         s->index_file = get_index_file();
 135         s->change.strdup_strings = 1;
 136         s->untracked.strdup_strings = 1;
 137         s->ignored.strdup_strings = 1;
 138         s->show_branch = -1;  /* unspecified */
 139         s->display_comment_prefix = 0;
 140 }
 141
 142 static void wt_status_print_unmerged_header(struct wt_status *s)
 143 {
 144         int i;
 145         int del_mod_conflict = 0;
 146         int both_deleted = 0;
 147         int not_deleted = 0;
 148         const char *c = color(WT_STATUS_HEADER, s);
 149
 150         status_printf_ln(s, c, _("Unmerged paths:"));
 151
 152         for (i = 0; i < s->change.nr; i++) {
 153                 struct string_list_item *it = &(s->change.items[i]);
 154                 struct wt_status_change_data *d = it->util;
 155
 156                 switch (d->stagemask) {
 157                 case 0:
 158                         break;
 159                 case 1:
 160                         both_deleted = 1;
 161                         break;
 162                 case 3:
 163                 case 5:
 164                         del_mod_conflict = 1;
 165                         break;
 166                 default:
 167                         not_deleted = 1;
 168                         break;
 169                 }
 170         }
 171
 172         if (!s->hints)
 173                 return;
 174         if (s->whence != FROM_COMMIT)
 175                 ;
 176         else if (!s->is_initial)
 177                 status_printf_ln(s, c, _("  (use \"git reset %s <file>...\" to unstage)"), s->reference);
 178         else
 179                 status_printf_ln(s, c, _("  (use \"git rm --cached <file>...\" to unstage)"));
 180
 181         if (!both_deleted) {
 182                 if (!del_mod_conflict)
 183                         status_printf_ln(s, c, _("  (use \"git add <file>...\" to mark resolution)"));
 184                 else
 185                         status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" as appropriate to mark resolution)"));
 186         } else if (!del_mod_conflict && !not_deleted) {
 187                 status_printf_ln(s, c, _("  (use \"git rm <file>...\" to mark resolution)"));
 188         } else {
 189                 status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" as appropriate to mark resolution)"));
 190         }
 191         status_printf_ln(s, c, "");
 192 }
 193
 194 static void wt_status_print_cached_header(struct wt_status *s)
 195 {
 196         const char *c = color(WT_STATUS_HEADER, s);
 197
 198         status_printf_ln(s, c, _("Changes to be committed:"));
 199         if (!s->hints)
 200                 return;
 201         if (s->whence != FROM_COMMIT)
 202                 ; /* NEEDSWORK: use "git reset --unresolve"??? */
 203         else if (!s->is_initial)
 204                 status_printf_ln(s, c, _("  (use \"git reset %s <file>...\" to unstage)"), s->reference);
 205         else
 206                 status_printf_ln(s, c, _("  (use \"git rm --cached <file>...\" to unstage)"));
 207         status_printf_ln(s, c, "");
 208 }
 209
 210 static void wt_status_print_dirty_header(struct wt_status *s,
 211                                          int has_deleted,
 212                                          int has_dirty_submodules)
 213 {
 214         const char *c = color(WT_STATUS_HEADER, s);
 215
 216         status_printf_ln(s, c, _("Changes not staged for commit:"));
 217         if (!s->hints)
 218                 return;
 219         if (!has_deleted)
 220                 status_printf_ln(s, c, _("  (use \"git add <file>...\" to update what will be committed)"));
 221         else
 222                 status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" to update what will be committed)"));
 223         status_printf_ln(s, c, _("  (use \"git checkout -- <file>...\" to discard changes in working directory)"));
 224         if (has_dirty_submodules)
 225                 status_printf_ln(s, c, _("  (commit or discard the untracked or modified content in submodules)"));
 226         status_printf_ln(s, c, "");
 227 }
 228
 229 static void wt_status_print_other_header(struct wt_status *s,
 230                                          const char *what,
 231                                          const char *how)
 232 {
 233         const char *c = color(WT_STATUS_HEADER, s);
 234         status_printf_ln(s, c, "%s:", what);
 235         if (!s->hints)
 236                 return;
 237         status_printf_ln(s, c, _("  (use \"git %s <file>...\" to include in what will be committed)"), how);
 238         status_printf_ln(s, c, "");
 239 }
 240
 241 static void wt_status_print_trailer(struct wt_status *s)
 242 {
 243         status_printf_ln(s, color(WT_STATUS_HEADER, s), "");
 244 }
 245
 246 #define quote_path quote_path_relative
 247
 248 static void wt_status_print_unmerged_data(struct wt_status *s,
 249                                           struct string_list_item *it)
 250 {
 251         const char *c = color(WT_STATUS_UNMERGED, s);
 252         struct wt_status_change_data *d = it->util;
 253         struct strbuf onebuf = STRBUF_INIT;
 254         const char *one, *how = _("bug");
 255
 256         one = quote_path(it->string, s->prefix, &onebuf);
 257         status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 258         switch (d->stagemask) {
 259         case 1: how = _("both deleted:"); break;
 260         case 2: how = _("added by us:"); break;
 261         case 3: how = _("deleted by them:"); break;
 262         case 4: how = _("added by them:"); break;
 263         case 5: how = _("deleted by us:"); break;
 264         case 6: how = _("both added:"); break;
 265         case 7: how = _("both modified:"); break;
 266         }
 267         status_printf_more(s, c, "%-20s%s\n", how, one);
 268         strbuf_release(&onebuf);
 269 }
 270
 271 static const char *wt_status_diff_status_string(int status)
 272 {
 273         switch (status) {
 274         case DIFF_STATUS_ADDED:
 275                 return _("new file");
 276         case DIFF_STATUS_COPIED:
 277                 return _("copied");
 278         case DIFF_STATUS_DELETED:
 279                 return _("deleted");
 280         case DIFF_STATUS_MODIFIED:
 281                 return _("modified");
 282         case DIFF_STATUS_RENAMED:
 283                 return _("renamed");
 284         case DIFF_STATUS_TYPE_CHANGED:
 285                 return _("typechange");
 286         case DIFF_STATUS_UNKNOWN:
 287                 return _("unknown");
 288         case DIFF_STATUS_UNMERGED:
 289                 return _("unmerged");
 290         default:
 291                 return NULL;
 292         }
 293 }
 294
 295 static void wt_status_print_change_data(struct wt_status *s,
 296                                         int change_type,
 297                                         struct string_list_item *it)
 298 {
 299         struct wt_status_change_data *d = it->util;
 300         const char *c = color(change_type, s);
 301         int status;
 302         char *one_name;
 303         char *two_name;
 304         const char *one, *two;
 305         struct strbuf onebuf = STRBUF_INIT, twobuf = STRBUF_INIT;
 306         struct strbuf extra = STRBUF_INIT;
 307         static char *padding;
 308         const char *what;
 309         int len;
 310
 311         if (!padding) {
 312                 int width = 0;
 313                 /* If DIFF_STATUS_* uses outside this range, we're in trouble */
 314                 for (status = 'A'; status <= 'Z'; status++) {
 315                         what = wt_status_diff_status_string(status);
 316                         len = what ? strlen(what) : 0;
 317                         if (len > width)
 318                                 width = len;
 319                 }
 320                 width += 2;     /* colon and a space */
 321                 padding = xmallocz(width);
 322                 memset(padding, ' ', width);
 323         }
 324
 325         one_name = two_name = it->string;
 326         switch (change_type) {
 327         case WT_STATUS_UPDATED:
 328                 status = d->index_status;
 329                 if (d->head_path)
 330                         one_name = d->head_path;
 331                 break;
 332         case WT_STATUS_CHANGED:
 333                 if (d->new_submodule_commits || d->dirty_submodule) {
 334                         strbuf_addstr(&extra, " (");
 335                         if (d->new_submodule_commits)
 336                                 strbuf_addf(&extra, _("new commits, "));
 337                         if (d->dirty_submodule & DIRTY_SUBMODULE_MODIFIED)
 338                                 strbuf_addf(&extra, _("modified content, "));
 339                         if (d->dirty_submodule & DIRTY_SUBMODULE_UNTRACKED)
 340                                 strbuf_addf(&extra, _("untracked content, "));
 341                         strbuf_setlen(&extra, extra.len - 2);
 342                         strbuf_addch(&extra, ')');
 343                 }
 344                 status = d->worktree_status;
 345                 break;
 346         default:
 347                 die("BUG: unhandled change_type %d in wt_status_print_change_data",
 348                     change_type);
 349         }
 350
 351         one = quote_path(one_name, s->prefix, &onebuf);
 352         two = quote_path(two_name, s->prefix, &twobuf);
 353
 354         status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 355         what = wt_status_diff_status_string(status);
 356         if (!what)
 357                 die(_("bug: unhandled diff status %c"), status);
 358         /* 1 for colon, which is not part of "what" */
 359         len = strlen(padding) - (utf8_strwidth(what) + 1);
 360         assert(len >= 0);
 361         if (status == DIFF_STATUS_COPIED || status == DIFF_STATUS_RENAMED)
 362                 status_printf_more(s, c, "%s:%.*s%s -> %s",
 363                                    what, len, padding, one, two);
 364         else
 365                 status_printf_more(s, c, "%s:%.*s%s",
 366                                    what, len, padding, one);
 367         if (extra.len) {
 368                 status_printf_more(s, color(WT_STATUS_HEADER, s), "%s", extra.buf);
 369                 strbuf_release(&extra);
 370         }
 371         status_printf_more(s, GIT_COLOR_NORMAL, "\n");
 372         strbuf_release(&onebuf);
 373         strbuf_release(&twobuf);
 374 }
 375
 376 static void wt_status_collect_changed_cb(struct diff_queue_struct *q,
 377                                          struct diff_options *options,
 378                                          void *data)
 379 {
 380         struct wt_status *s = data;
 381         int i;
 382
 383         if (!q->nr)
 384                 return;
 385         s->workdir_dirty = 1;
 386         for (i = 0; i < q->nr; i++) {
 387                 struct diff_filepair *p;
 388                 struct string_list_item *it;
 389                 struct wt_status_change_data *d;
 390
 391                 p = q->queue[i];
 392                 it = string_list_insert(&s->change, p->one->path);
 393                 d = it->util;
 394                 if (!d) {
 395                         d = xcalloc(1, sizeof(*d));
 396                         it->util = d;
 397                 }
 398                 if (!d->worktree_status)
 399                         d->worktree_status = p->status;
 400                 d->dirty_submodule = p->two->dirty_submodule;
 401                 if (S_ISGITLINK(p->two->mode))
 402                         d->new_submodule_commits = !!hashcmp(p->one->sha1, p->two->sha1);
 403         }
 404 }
 405
 406 static int unmerged_mask(const char *path)
 407 {
 408         int pos, mask;
 409         const struct cache_entry *ce;
 410
 411         pos = cache_name_pos(path, strlen(path));
 412         if (0 <= pos)
 413                 return 0;
 414
 415         mask = 0;
 416         pos = -pos-1;
 417         while (pos < active_nr) {
 418                 ce = active_cache[pos++];
 419                 if (strcmp(ce->name, path) || !ce_stage(ce))
 420                         break;
 421                 mask |= (1 << (ce_stage(ce) - 1));
 422         }
 423         return mask;
 424 }
 425
 426 static void wt_status_collect_updated_cb(struct diff_queue_struct *q,
 427                                          struct diff_options *options,
 428                                          void *data)
 429 {
 430         struct wt_status *s = data;
 431         int i;
 432
 433         for (i = 0; i < q->nr; i++) {
 434                 struct diff_filepair *p;
 435                 struct string_list_item *it;
 436                 struct wt_status_change_data *d;
 437
 438                 p = q->queue[i];
 439                 it = string_list_insert(&s->change, p->two->path);
 440                 d = it->util;
 441                 if (!d) {
 442                         d = xcalloc(1, sizeof(*d));
 443                         it->util = d;
 444                 }
 445                 if (!d->index_status)
 446                         d->index_status = p->status;
 447                 switch (p->status) {
 448                 case DIFF_STATUS_COPIED:
 449                 case DIFF_STATUS_RENAMED:
 450                         d->head_path = xstrdup(p->one->path);
 451                         break;
 452                 case DIFF_STATUS_UNMERGED:
 453                         d->stagemask = unmerged_mask(p->two->path);
 454                         break;
 455                 }
 456         }
 457 }
 458
 459 static void wt_status_collect_changes_worktree(struct wt_status *s)
 460 {
 461         struct rev_info rev;
 462
 463         init_revisions(&rev, NULL);
 464         setup_revisions(0, NULL, &rev, NULL);
 465         rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 466         DIFF_OPT_SET(&rev.diffopt, DIRTY_SUBMODULES);
 467         if (!s->show_untracked_files)
 468                 DIFF_OPT_SET(&rev.diffopt, IGNORE_UNTRACKED_IN_SUBMODULES);
 469         if (s->ignore_submodule_arg) {
 470                 DIFF_OPT_SET(&rev.diffopt, OVERRIDE_SUBMODULE_CONFIG);
 471                 handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
 472         }
 473         rev.diffopt.format_callback = wt_status_collect_changed_cb;
 474         rev.diffopt.format_callback_data = s;
 475         copy_pathspec(&rev.prune_data, &s->pathspec);
 476         run_diff_files(&rev, 0);
 477 }
 478
 479 static void wt_status_collect_changes_index(struct wt_status *s)
 480 {
 481         struct rev_info rev;
 482         struct setup_revision_opt opt;
 483
 484         init_revisions(&rev, NULL);
 485         memset(&opt, 0, sizeof(opt));
 486         opt.def = s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference;
 487         setup_revisions(0, NULL, &rev, &opt);
 488
 489         if (s->ignore_submodule_arg) {
 490                 DIFF_OPT_SET(&rev.diffopt, OVERRIDE_SUBMODULE_CONFIG);
 491                 handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
 492         }
 493
 494         rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 495         rev.diffopt.format_callback = wt_status_collect_updated_cb;
 496         rev.diffopt.format_callback_data = s;
 497         rev.diffopt.detect_rename = 1;
 498         rev.diffopt.rename_limit = 200;
 499         rev.diffopt.break_opt = 0;
 500         copy_pathspec(&rev.prune_data, &s->pathspec);
 501         run_diff_index(&rev, 1);
 502 }
 503
 504 static void wt_status_collect_changes_initial(struct wt_status *s)
 505 {
 506         int i;
 507
 508         for (i = 0; i < active_nr; i++) {
 509                 struct string_list_item *it;
 510                 struct wt_status_change_data *d;
 511                 const struct cache_entry *ce = active_cache[i];
 512
 513                 if (!ce_path_match(ce, &s->pathspec))
 514                         continue;
 515                 it = string_list_insert(&s->change, ce->name);
 516                 d = it->util;
 517                 if (!d) {
 518                         d = xcalloc(1, sizeof(*d));
 519                         it->util = d;
 520                 }
 521                 if (ce_stage(ce)) {
 522                         d->index_status = DIFF_STATUS_UNMERGED;
 523                         d->stagemask |= (1 << (ce_stage(ce) - 1));
 524                 }
 525                 else
 526                         d->index_status = DIFF_STATUS_ADDED;
 527         }
 528 }
 529
 530 static void wt_status_collect_untracked(struct wt_status *s)
 531 {
 532         int i;
 533         struct dir_struct dir;
 534         struct timeval t_begin;
 535
 536         if (!s->show_untracked_files)
 537                 return;
 538
 539         if (advice_status_u_option)
 540                 gettimeofday(&t_begin, NULL);
 541
 542         memset(&dir, 0, sizeof(dir));
 543         if (s->show_untracked_files != SHOW_ALL_UNTRACKED_FILES)
 544                 dir.flags |=
 545                         DIR_SHOW_OTHER_DIRECTORIES | DIR_HIDE_EMPTY_DIRECTORIES;
 546         if (s->show_ignored_files)
 547                 dir.flags |= DIR_SHOW_IGNORED_TOO;
 548         setup_standard_excludes(&dir);
 549
 550         fill_directory(&dir, &s->pathspec);
 551
 552         for (i = 0; i < dir.nr; i++) {
 553                 struct dir_entry *ent = dir.entries[i];
 554                 if (cache_name_is_other(ent->name, ent->len) &&
 555                     match_pathspec_depth(&s->pathspec, ent->name, ent->len, 0, NULL))
 556                         string_list_insert(&s->untracked, ent->name);
 557                 free(ent);
 558         }
 559
 560         for (i = 0; i < dir.ignored_nr; i++) {
 561                 struct dir_entry *ent = dir.ignored[i];
 562                 if (cache_name_is_other(ent->name, ent->len) &&
 563                     match_pathspec_depth(&s->pathspec, ent->name, ent->len, 0, NULL))
 564                         string_list_insert(&s->ignored, ent->name);
 565                 free(ent);
 566         }
 567
 568         free(dir.entries);
 569         free(dir.ignored);
 570         clear_directory(&dir);
 571
 572         if (advice_status_u_option) {
 573                 struct timeval t_end;
 574                 gettimeofday(&t_end, NULL);
 575                 s->untracked_in_ms =
 576                         (uint64_t)t_end.tv_sec * 1000 + t_end.tv_usec / 1000 -
 577                         ((uint64_t)t_begin.tv_sec * 1000 + t_begin.tv_usec / 1000);
 578         }
 579 }
 580
 581 void wt_status_collect(struct wt_status *s)
 582 {
 583         wt_status_collect_changes_worktree(s);
 584
 585         if (s->is_initial)
 586                 wt_status_collect_changes_initial(s);
 587         else
 588                 wt_status_collect_changes_index(s);
 589         wt_status_collect_untracked(s);
 590 }
 591
 592 static void wt_status_print_unmerged(struct wt_status *s)
 593 {
 594         int shown_header = 0;
 595         int i;
 596
 597         for (i = 0; i < s->change.nr; i++) {
 598                 struct wt_status_change_data *d;
 599                 struct string_list_item *it;
 600                 it = &(s->change.items[i]);
 601                 d = it->util;
 602                 if (!d->stagemask)
 603                         continue;
 604                 if (!shown_header) {
 605                         wt_status_print_unmerged_header(s);
 606                         shown_header = 1;
 607                 }
 608                 wt_status_print_unmerged_data(s, it);
 609         }
 610         if (shown_header)
 611                 wt_status_print_trailer(s);
 612
 613 }
 614
 615 static void wt_status_print_updated(struct wt_status *s)
 616 {
 617         int shown_header = 0;
 618         int i;
 619
 620         for (i = 0; i < s->change.nr; i++) {
 621                 struct wt_status_change_data *d;
 622                 struct string_list_item *it;
 623                 it = &(s->change.items[i]);
 624                 d = it->util;
 625                 if (!d->index_status ||
 626                     d->index_status == DIFF_STATUS_UNMERGED)
 627                         continue;
 628                 if (!shown_header) {
 629                         wt_status_print_cached_header(s);
 630                         s->commitable = 1;
 631                         shown_header = 1;
 632                 }
 633                 wt_status_print_change_data(s, WT_STATUS_UPDATED, it);
 634         }
 635         if (shown_header)
 636                 wt_status_print_trailer(s);
 637 }
 638
 639 /*
 640  * -1 : has delete
 641  *  0 : no change
 642  *  1 : some change but no delete
 643  */
 644 static int wt_status_check_worktree_changes(struct wt_status *s,
 645                                              int *dirty_submodules)
 646 {
 647         int i;
 648         int changes = 0;
 649
 650         *dirty_submodules = 0;
 651
 652         for (i = 0; i < s->change.nr; i++) {
 653                 struct wt_status_change_data *d;
 654                 d = s->change.items[i].util;
 655                 if (!d->worktree_status ||
 656                     d->worktree_status == DIFF_STATUS_UNMERGED)
 657                         continue;
 658                 if (!changes)
 659                         changes = 1;
 660                 if (d->dirty_submodule)
 661                         *dirty_submodules = 1;
 662                 if (d->worktree_status == DIFF_STATUS_DELETED)
 663                         changes = -1;
 664         }
 665         return changes;
 666 }
 667
 668 static void wt_status_print_changed(struct wt_status *s)
 669 {
 670         int i, dirty_submodules;
 671         int worktree_changes = wt_status_check_worktree_changes(s, &dirty_submodules);
 672
 673         if (!worktree_changes)
 674                 return;
 675
 676         wt_status_print_dirty_header(s, worktree_changes < 0, dirty_submodules);
 677
 678         for (i = 0; i < s->change.nr; i++) {
 679                 struct wt_status_change_data *d;
 680                 struct string_list_item *it;
 681                 it = &(s->change.items[i]);
 682                 d = it->util;
 683                 if (!d->worktree_status ||
 684                     d->worktree_status == DIFF_STATUS_UNMERGED)
 685                         continue;
 686                 wt_status_print_change_data(s, WT_STATUS_CHANGED, it);
 687         }
 688         wt_status_print_trailer(s);
 689 }
 690
 691 static void wt_status_print_submodule_summary(struct wt_status *s, int uncommitted)
 692 {
 693         struct child_process sm_summary;
 694         char summary_limit[64];
 695         char index[PATH_MAX];
 696         const char *env[] = { NULL, NULL };
 697         struct argv_array argv = ARGV_ARRAY_INIT;
 698         struct strbuf cmd_stdout = STRBUF_INIT;
 699         struct strbuf summary = STRBUF_INIT;
 700         char *summary_content;
 701         size_t len;
 702
 703         sprintf(summary_limit, "%d", s->submodule_summary);
 704         snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", s->index_file);
 705
 706         env[0] = index;
 707         argv_array_push(&argv, "submodule");
 708         argv_array_push(&argv, "summary");
 709         argv_array_push(&argv, uncommitted ? "--files" : "--cached");
 710         argv_array_push(&argv, "--for-status");
 711         argv_array_push(&argv, "--summary-limit");
 712         argv_array_push(&argv, summary_limit);
 713         if (!uncommitted)
 714                 argv_array_push(&argv, s->amend ? "HEAD^" : "HEAD");
 715
 716         memset(&sm_summary, 0, sizeof(sm_summary));
 717         sm_summary.argv = argv.argv;
 718         sm_summary.env = env;
 719         sm_summary.git_cmd = 1;
 720         sm_summary.no_stdin = 1;
 721         fflush(s->fp);
 722         sm_summary.out = -1;
 723
 724         run_command(&sm_summary);
 725         argv_array_clear(&argv);
 726
 727         len = strbuf_read(&cmd_stdout, sm_summary.out, 1024);
 728
 729         /* prepend header, only if there's an actual output */
 730         if (len) {
 731                 if (uncommitted)
 732                         strbuf_addstr(&summary, _("Submodules changed but not updated:"));
 733                 else
 734                         strbuf_addstr(&summary, _("Submodule changes to be committed:"));
 735                 strbuf_addstr(&summary, "\n\n");
 736         }
 737         strbuf_addbuf(&summary, &cmd_stdout);
 738         strbuf_release(&cmd_stdout);
 739
 740         if (s->display_comment_prefix) {
 741                 summary_content = strbuf_detach(&summary, &len);
 742                 strbuf_add_commented_lines(&summary, summary_content, len);
 743                 free(summary_content);
 744         }
 745
 746         fputs(summary.buf, s->fp);
 747         strbuf_release(&summary);
 748 }
 749
 750 static void wt_status_print_other(struct wt_status *s,
 751                                   struct string_list *l,
 752                                   const char *what,
 753                                   const char *how)
 754 {
 755         int i;
 756         struct strbuf buf = STRBUF_INIT;
 757         static struct string_list output = STRING_LIST_INIT_DUP;
 758         struct column_options copts;
 759
 760         if (!l->nr)
 761                 return;
 762
 763         wt_status_print_other_header(s, what, how);
 764
 765         for (i = 0; i < l->nr; i++) {
 766                 struct string_list_item *it;
 767                 const char *path;
 768                 it = &(l->items[i]);
 769                 path = quote_path(it->string, s->prefix, &buf);
 770                 if (column_active(s->colopts)) {
 771                         string_list_append(&output, path);
 772                         continue;
 773                 }
 774                 status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 775                 status_printf_more(s, color(WT_STATUS_UNTRACKED, s),
 776                                    "%s\n", path);
 777         }
 778
 779         strbuf_release(&buf);
 780         if (!column_active(s->colopts))
 781                 goto conclude;
 782
 783         strbuf_addf(&buf, "%s%s\t%s",
 784                     color(WT_STATUS_HEADER, s),
 785                     s->display_comment_prefix ? "#" : "",
 786                     color(WT_STATUS_UNTRACKED, s));
 787         memset(&copts, 0, sizeof(copts));
 788         copts.padding = 1;
 789         copts.indent = buf.buf;
 790         if (want_color(s->use_color))
 791                 copts.nl = GIT_COLOR_RESET "\n";
 792         print_columns(&output, s->colopts, &copts);
 793         string_list_clear(&output, 0);
 794         strbuf_release(&buf);
 795 conclude:
 796         status_printf_ln(s, GIT_COLOR_NORMAL, "");
 797 }
 798
 799 void wt_status_truncate_message_at_cut_line(struct strbuf *buf)
 800 {
 801         const char *p;
 802         struct strbuf pattern = STRBUF_INIT;
 803
 804         strbuf_addf(&pattern, "%c %s", comment_line_char, cut_line);
 805         p = strstr(buf->buf, pattern.buf);
 806         if (p && (p == buf->buf || p[-1] == '\n'))
 807                 strbuf_setlen(buf, p - buf->buf);
 808         strbuf_release(&pattern);
 809 }
 810
 811 void wt_status_add_cut_line(FILE *fp)
 812 {
 813         const char *explanation = _("Do not touch the line above.\nEverything below will be removed.");
 814         struct strbuf buf = STRBUF_INIT;
 815
 816         fprintf(fp, "%c %s", comment_line_char, cut_line);
 817         strbuf_add_commented_lines(&buf, explanation, strlen(explanation));
 818         fputs(buf.buf, fp);
 819         strbuf_release(&buf);
 820 }
 821
 822 static void wt_status_print_verbose(struct wt_status *s)
 823 {
 824         struct rev_info rev;
 825         struct setup_revision_opt opt;
 826
 827         init_revisions(&rev, NULL);
 828         DIFF_OPT_SET(&rev.diffopt, ALLOW_TEXTCONV);
 829
 830         memset(&opt, 0, sizeof(opt));
 831         opt.def = s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference;
 832         setup_revisions(0, NULL, &rev, &opt);
 833
 834         rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
 835         rev.diffopt.detect_rename = 1;
 836         rev.diffopt.file = s->fp;
 837         rev.diffopt.close_file = 0;
 838         /*
 839          * If we're not going to stdout, then we definitely don't
 840          * want color, since we are going to the commit message
 841          * file (and even the "auto" setting won't work, since it
 842          * will have checked isatty on stdout). But we then do want
 843          * to insert the scissor line here to reliably remove the
 844          * diff before committing.
 845          */
 846         if (s->fp != stdout) {
 847                 rev.diffopt.use_color = 0;
 848                 wt_status_add_cut_line(s->fp);
 849         }
 850         run_diff_index(&rev, 1);
 851 }
 852
 853 static void wt_status_print_tracking(struct wt_status *s)
 854 {
 855         struct strbuf sb = STRBUF_INIT;
 856         const char *cp, *ep;
 857         struct branch *branch;
 858         char comment_line_string[3];
 859         int i;
 860
 861         assert(s->branch && !s->is_initial);
 862         if (!starts_with(s->branch, "refs/heads/"))
 863                 return;
 864         branch = branch_get(s->branch + 11);
 865         if (!format_tracking_info(branch, &sb))
 866                 return;
 867
 868         i = 0;
 869         if (s->display_comment_prefix) {
 870                 comment_line_string[i++] = comment_line_char;
 871                 comment_line_string[i++] = ' ';
 872         }
 873         comment_line_string[i] = '\0';
 874
 875         for (cp = sb.buf; (ep = strchr(cp, '\n')) != NULL; cp = ep + 1)
 876                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s),
 877                                  "%s%.*s", comment_line_string,
 878                                  (int)(ep - cp), cp);
 879         if (s->display_comment_prefix)
 880                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "%c",
 881                                  comment_line_char);
 882         else
 883                 fprintf_ln(s->fp, "");
 884 }
 885
 886 static int has_unmerged(struct wt_status *s)
 887 {
 888         int i;
 889
 890         for (i = 0; i < s->change.nr; i++) {
 891                 struct wt_status_change_data *d;
 892                 d = s->change.items[i].util;
 893                 if (d->stagemask)
 894                         return 1;
 895         }
 896         return 0;
 897 }
 898
 899 static void show_merge_in_progress(struct wt_status *s,
 900                                 struct wt_status_state *state,
 901                                 const char *color)
 902 {
 903         if (has_unmerged(s)) {
 904                 status_printf_ln(s, color, _("You have unmerged paths."));
 905                 if (s->hints)
 906                         status_printf_ln(s, color,
 907                                 _("  (fix conflicts and run \"git commit\")"));
 908         } else {
 909                 status_printf_ln(s, color,
 910                         _("All conflicts fixed but you are still merging."));
 911                 if (s->hints)
 912                         status_printf_ln(s, color,
 913                                 _("  (use \"git commit\" to conclude merge)"));
 914         }
 915         wt_status_print_trailer(s);
 916 }
 917
 918 static void show_am_in_progress(struct wt_status *s,
 919                                 struct wt_status_state *state,
 920                                 const char *color)
 921 {
 922         status_printf_ln(s, color,
 923                 _("You are in the middle of an am session."));
 924         if (state->am_empty_patch)
 925                 status_printf_ln(s, color,
 926                         _("The current patch is empty."));
 927         if (s->hints) {
 928                 if (!state->am_empty_patch)
 929                         status_printf_ln(s, color,
 930                                 _("  (fix conflicts and then run \"git am --continue\")"));
 931                 status_printf_ln(s, color,
 932                         _("  (use \"git am --skip\" to skip this patch)"));
 933                 status_printf_ln(s, color,
 934                         _("  (use \"git am --abort\" to restore the original branch)"));
 935         }
 936         wt_status_print_trailer(s);
 937 }
 938
 939 static char *read_line_from_git_path(const char *filename)
 940 {
 941         struct strbuf buf = STRBUF_INIT;
 942         FILE *fp = fopen(git_path("%s", filename), "r");
 943         if (!fp) {
 944                 strbuf_release(&buf);
 945                 return NULL;
 946         }
 947         strbuf_getline(&buf, fp, '\n');
 948         if (!fclose(fp)) {
 949                 return strbuf_detach(&buf, NULL);
 950         } else {
 951                 strbuf_release(&buf);
 952                 return NULL;
 953         }
 954 }
 955
 956 static int split_commit_in_progress(struct wt_status *s)
 957 {
 958         int split_in_progress = 0;
 959         char *head = read_line_from_git_path("HEAD");
 960         char *orig_head = read_line_from_git_path("ORIG_HEAD");
 961         char *rebase_amend = read_line_from_git_path("rebase-merge/amend");
 962         char *rebase_orig_head = read_line_from_git_path("rebase-merge/orig-head");
 963
 964         if (!head || !orig_head || !rebase_amend || !rebase_orig_head ||
 965             !s->branch || strcmp(s->branch, "HEAD"))
 966                 return split_in_progress;
 967
 968         if (!strcmp(rebase_amend, rebase_orig_head)) {
 969                 if (strcmp(head, rebase_amend))
 970                         split_in_progress = 1;
 971         } else if (strcmp(orig_head, rebase_orig_head)) {
 972                 split_in_progress = 1;
 973         }
 974
 975         if (!s->amend && !s->nowarn && !s->workdir_dirty)
 976                 split_in_progress = 0;
 977
 978         free(head);
 979         free(orig_head);
 980         free(rebase_amend);
 981         free(rebase_orig_head);
 982         return split_in_progress;
 983 }
 984
 985 static void show_rebase_in_progress(struct wt_status *s,
 986                                 struct wt_status_state *state,
 987                                 const char *color)
 988 {
 989         struct stat st;
 990
 991         if (has_unmerged(s)) {
 992                 if (state->branch)
 993                         status_printf_ln(s, color,
 994                                          _("You are currently rebasing branch '%s' on '%s'."),
 995                                          state->branch,
 996                                          state->onto);
 997                 else
 998                         status_printf_ln(s, color,
 999                                          _("You are currently rebasing."));
1000                 if (s->hints) {
1001                         status_printf_ln(s, color,
1002                                 _("  (fix conflicts and then run \"git rebase --continue\")"));
1003                         status_printf_ln(s, color,
1004                                 _("  (use \"git rebase --skip\" to skip this patch)"));
1005                         status_printf_ln(s, color,
1006                                 _("  (use \"git rebase --abort\" to check out the original branch)"));
1007                 }
1008         } else if (state->rebase_in_progress || !stat(git_path("MERGE_MSG"), &st)) {
1009                 if (state->branch)
1010                         status_printf_ln(s, color,
1011                                          _("You are currently rebasing branch '%s' on '%s'."),
1012                                          state->branch,
1013                                          state->onto);
1014                 else
1015                         status_printf_ln(s, color,
1016                                          _("You are currently rebasing."));
1017                 if (s->hints)
1018                         status_printf_ln(s, color,
1019                                 _("  (all conflicts fixed: run \"git rebase --continue\")"));
1020         } else if (split_commit_in_progress(s)) {
1021                 if (state->branch)
1022                         status_printf_ln(s, color,
1023                                          _("You are currently splitting a commit while rebasing branch '%s' on '%s'."),
1024                                          state->branch,
1025                                          state->onto);
1026                 else
1027                         status_printf_ln(s, color,
1028                                          _("You are currently splitting a commit during a rebase."));
1029                 if (s->hints)
1030                         status_printf_ln(s, color,
1031                                 _("  (Once your working directory is clean, run \"git rebase --continue\")"));
1032         } else {
1033                 if (state->branch)
1034                         status_printf_ln(s, color,
1035                                          _("You are currently editing a commit while rebasing branch '%s' on '%s'."),
1036                                          state->branch,
1037                                          state->onto);
1038                 else
1039                         status_printf_ln(s, color,
1040                                          _("You are currently editing a commit during a rebase."));
1041                 if (s->hints && !s->amend) {
1042                         status_printf_ln(s, color,
1043                                 _("  (use \"git commit --amend\" to amend the current commit)"));
1044                         status_printf_ln(s, color,
1045                                 _("  (use \"git rebase --continue\" once you are satisfied with your changes)"));
1046                 }
1047         }
1048         wt_status_print_trailer(s);
1049 }
1050
1051 static void show_cherry_pick_in_progress(struct wt_status *s,
1052                                         struct wt_status_state *state,
1053                                         const char *color)
1054 {
1055         status_printf_ln(s, color, _("You are currently cherry-picking commit %s."),
1056                         find_unique_abbrev(state->cherry_pick_head_sha1, DEFAULT_ABBREV));
1057         if (s->hints) {
1058                 if (has_unmerged(s))
1059                         status_printf_ln(s, color,
1060                                 _("  (fix conflicts and run \"git cherry-pick --continue\")"));
1061                 else
1062                         status_printf_ln(s, color,
1063                                 _("  (all conflicts fixed: run \"git cherry-pick --continue\")"));
1064                 status_printf_ln(s, color,
1065                         _("  (use \"git cherry-pick --abort\" to cancel the cherry-pick operation)"));
1066         }
1067         wt_status_print_trailer(s);
1068 }
1069
1070 static void show_revert_in_progress(struct wt_status *s,
1071                                         struct wt_status_state *state,
1072                                         const char *color)
1073 {
1074         status_printf_ln(s, color, _("You are currently reverting commit %s."),
1075                          find_unique_abbrev(state->revert_head_sha1, DEFAULT_ABBREV));
1076         if (s->hints) {
1077                 if (has_unmerged(s))
1078                         status_printf_ln(s, color,
1079                                 _("  (fix conflicts and run \"git revert --continue\")"));
1080                 else
1081                         status_printf_ln(s, color,
1082                                 _("  (all conflicts fixed: run \"git revert --continue\")"));
1083                 status_printf_ln(s, color,
1084                         _("  (use \"git revert --abort\" to cancel the revert operation)"));
1085         }
1086         wt_status_print_trailer(s);
1087 }
1088
1089 static void show_bisect_in_progress(struct wt_status *s,
1090                                 struct wt_status_state *state,
1091                                 const char *color)
1092 {
1093         if (state->branch)
1094                 status_printf_ln(s, color,
1095                                  _("You are currently bisecting, started from branch '%s'."),
1096                                  state->branch);
1097         else
1098                 status_printf_ln(s, color,
1099                                  _("You are currently bisecting."));
1100         if (s->hints)
1101                 status_printf_ln(s, color,
1102                         _("  (use \"git bisect reset\" to get back to the original branch)"));
1103         wt_status_print_trailer(s);
1104 }
1105
1106 /*
1107  * Extract branch information from rebase/bisect
1108  */
1109 static char *read_and_strip_branch(const char *path)
1110 {
1111         struct strbuf sb = STRBUF_INIT;
1112         unsigned char sha1[20];
1113
1114         if (strbuf_read_file(&sb, git_path("%s", path), 0) <= 0)
1115                 goto got_nothing;
1116
1117         while (&sb.len && sb.buf[sb.len - 1] == '\n')
1118                 strbuf_setlen(&sb, sb.len - 1);
1119         if (!sb.len)
1120                 goto got_nothing;
1121         if (starts_with(sb.buf, "refs/heads/"))
1122                 strbuf_remove(&sb,0, strlen("refs/heads/"));
1123         else if (starts_with(sb.buf, "refs/"))
1124                 ;
1125         else if (!get_sha1_hex(sb.buf, sha1)) {
1126                 const char *abbrev;
1127                 abbrev = find_unique_abbrev(sha1, DEFAULT_ABBREV);
1128                 strbuf_reset(&sb);
1129                 strbuf_addstr(&sb, abbrev);
1130         } else if (!strcmp(sb.buf, "detached HEAD")) /* rebase */
1131                 goto got_nothing;
1132         else                    /* bisect */
1133                 ;
1134         return strbuf_detach(&sb, NULL);
1135
1136 got_nothing:
1137         strbuf_release(&sb);
1138         return NULL;
1139 }
1140
1141 struct grab_1st_switch_cbdata {
1142         struct strbuf buf;
1143         unsigned char nsha1[20];
1144 };
1145
1146 static int grab_1st_switch(unsigned char *osha1, unsigned char *nsha1,
1147                            const char *email, unsigned long timestamp, int tz,
1148                            const char *message, void *cb_data)
1149 {
1150         struct grab_1st_switch_cbdata *cb = cb_data;
1151         const char *target = NULL, *end;
1152
1153         if (!starts_with(message, "checkout: moving from "))
1154                 return 0;
1155         message += strlen("checkout: moving from ");
1156         target = strstr(message, " to ");
1157         if (!target)
1158                 return 0;
1159         target += strlen(" to ");
1160         strbuf_reset(&cb->buf);
1161         hashcpy(cb->nsha1, nsha1);
1162         for (end = target; *end && *end != '\n'; end++)
1163                 ;
1164         strbuf_add(&cb->buf, target, end - target);
1165         return 1;
1166 }
1167
1168 static void wt_status_get_detached_from(struct wt_status_state *state)
1169 {
1170         struct grab_1st_switch_cbdata cb;
1171         struct commit *commit;
1172         unsigned char sha1[20];
1173         char *ref = NULL;
1174
1175         strbuf_init(&cb.buf, 0);
1176         if (for_each_reflog_ent_reverse("HEAD", grab_1st_switch, &cb) <= 0) {
1177                 strbuf_release(&cb.buf);
1178                 return;
1179         }
1180
1181         if (dwim_ref(cb.buf.buf, cb.buf.len, sha1, &ref) == 1 &&
1182             /* sha1 is a commit? match without further lookup */
1183             (!hashcmp(cb.nsha1, sha1) ||
1184              /* perhaps sha1 is a tag, try to dereference to a commit */
1185              ((commit = lookup_commit_reference_gently(sha1, 1)) != NULL &&
1186               !hashcmp(cb.nsha1, commit->object.sha1)))) {
1187                 int ofs;
1188                 if (starts_with(ref, "refs/tags/"))
1189                         ofs = strlen("refs/tags/");
1190                 else if (starts_with(ref, "refs/remotes/"))
1191                         ofs = strlen("refs/remotes/");
1192                 else
1193                         ofs = 0;
1194                 state->detached_from = xstrdup(ref + ofs);
1195         } else
1196                 state->detached_from =
1197                         xstrdup(find_unique_abbrev(cb.nsha1, DEFAULT_ABBREV));
1198         hashcpy(state->detached_sha1, cb.nsha1);
1199
1200         free(ref);
1201         strbuf_release(&cb.buf);
1202 }
1203
1204 void wt_status_get_state(struct wt_status_state *state,
1205                          int get_detached_from)
1206 {
1207         struct stat st;
1208         unsigned char sha1[20];
1209
1210         if (!stat(git_path("MERGE_HEAD"), &st)) {
1211                 state->merge_in_progress = 1;
1212         } else if (!stat(git_path("rebase-apply"), &st)) {
1213                 if (!stat(git_path("rebase-apply/applying"), &st)) {
1214                         state->am_in_progress = 1;
1215                         if (!stat(git_path("rebase-apply/patch"), &st) && !st.st_size)
1216                                 state->am_empty_patch = 1;
1217                 } else {
1218                         state->rebase_in_progress = 1;
1219                         state->branch = read_and_strip_branch("rebase-apply/head-name");
1220                         state->onto = read_and_strip_branch("rebase-apply/onto");
1221                 }
1222         } else if (!stat(git_path("rebase-merge"), &st)) {
1223                 if (!stat(git_path("rebase-merge/interactive"), &st))
1224                         state->rebase_interactive_in_progress = 1;
1225                 else
1226                         state->rebase_in_progress = 1;
1227                 state->branch = read_and_strip_branch("rebase-merge/head-name");
1228                 state->onto = read_and_strip_branch("rebase-merge/onto");
1229         } else if (!stat(git_path("CHERRY_PICK_HEAD"), &st) &&
1230                         !get_sha1("CHERRY_PICK_HEAD", sha1)) {
1231                 state->cherry_pick_in_progress = 1;
1232                 hashcpy(state->cherry_pick_head_sha1, sha1);
1233         }
1234         if (!stat(git_path("BISECT_LOG"), &st)) {
1235                 state->bisect_in_progress = 1;
1236                 state->branch = read_and_strip_branch("BISECT_START");
1237         }
1238         if (!stat(git_path("REVERT_HEAD"), &st) &&
1239             !get_sha1("REVERT_HEAD", sha1)) {
1240                 state->revert_in_progress = 1;
1241                 hashcpy(state->revert_head_sha1, sha1);
1242         }
1243
1244         if (get_detached_from)
1245                 wt_status_get_detached_from(state);
1246 }
1247
1248 static void wt_status_print_state(struct wt_status *s,
1249                                   struct wt_status_state *state)
1250 {
1251         const char *state_color = color(WT_STATUS_HEADER, s);
1252         if (state->merge_in_progress)
1253                 show_merge_in_progress(s, state, state_color);
1254         else if (state->am_in_progress)
1255                 show_am_in_progress(s, state, state_color);
1256         else if (state->rebase_in_progress || state->rebase_interactive_in_progress)
1257                 show_rebase_in_progress(s, state, state_color);
1258         else if (state->cherry_pick_in_progress)
1259                 show_cherry_pick_in_progress(s, state, state_color);
1260         else if (state->revert_in_progress)
1261                 show_revert_in_progress(s, state, state_color);
1262         if (state->bisect_in_progress)
1263                 show_bisect_in_progress(s, state, state_color);
1264 }
1265
1266 void wt_status_print(struct wt_status *s)
1267 {
1268         const char *branch_color = color(WT_STATUS_ONBRANCH, s);
1269         const char *branch_status_color = color(WT_STATUS_HEADER, s);
1270         struct wt_status_state state;
1271
1272         memset(&state, 0, sizeof(state));
1273         wt_status_get_state(&state,
1274                             s->branch && !strcmp(s->branch, "HEAD"));
1275
1276         if (s->branch) {
1277                 const char *on_what = _("On branch ");
1278                 const char *branch_name = s->branch;
1279                 if (starts_with(branch_name, "refs/heads/"))
1280                         branch_name += 11;
1281                 else if (!strcmp(branch_name, "HEAD")) {
1282                         branch_status_color = color(WT_STATUS_NOBRANCH, s);
1283                         if (state.rebase_in_progress || state.rebase_interactive_in_progress) {
1284                                 on_what = _("rebase in progress; onto ");
1285                                 branch_name = state.onto;
1286                         } else if (state.detached_from) {
1287                                 unsigned char sha1[20];
1288                                 branch_name = state.detached_from;
1289                                 if (!get_sha1("HEAD", sha1) &&
1290                                     !hashcmp(sha1, state.detached_sha1))
1291                                         on_what = _("HEAD detached at ");
1292                                 else
1293                                         on_what = _("HEAD detached from ");
1294                         } else {
1295                                 branch_name = "";
1296                                 on_what = _("Not currently on any branch.");
1297                         }
1298                 }
1299                 status_printf(s, color(WT_STATUS_HEADER, s), "");
1300                 status_printf_more(s, branch_status_color, "%s", on_what);
1301                 status_printf_more(s, branch_color, "%s\n", branch_name);
1302                 if (!s->is_initial)
1303                         wt_status_print_tracking(s);
1304         }
1305
1306         wt_status_print_state(s, &state);
1307         free(state.branch);
1308         free(state.onto);
1309         free(state.detached_from);
1310
1311         if (s->is_initial) {
1312                 status_printf_ln(s, color(WT_STATUS_HEADER, s), "");
1313                 status_printf_ln(s, color(WT_STATUS_HEADER, s), _("Initial commit"));
1314                 status_printf_ln(s, color(WT_STATUS_HEADER, s), "");
1315         }
1316
1317         wt_status_print_updated(s);
1318         wt_status_print_unmerged(s);
1319         wt_status_print_changed(s);
1320         if (s->submodule_summary &&
1321             (!s->ignore_submodule_arg ||
1322              strcmp(s->ignore_submodule_arg, "all"))) {
1323                 wt_status_print_submodule_summary(s, 0);  /* staged */
1324                 wt_status_print_submodule_summary(s, 1);  /* unstaged */
1325         }
1326         if (s->show_untracked_files) {
1327                 wt_status_print_other(s, &s->untracked, _("Untracked files"), "add");
1328                 if (s->show_ignored_files)
1329                         wt_status_print_other(s, &s->ignored, _("Ignored files"), "add -f");
1330                 if (advice_status_u_option && 2000 < s->untracked_in_ms) {
1331                         status_printf_ln(s, GIT_COLOR_NORMAL, "");
1332                         status_printf_ln(s, GIT_COLOR_NORMAL,
1333                                          _("It took %.2f seconds to enumerate untracked files. 'status -uno'\n"
1334                                            "may speed it up, but you have to be careful not to forget to add\n"
1335                                            "new files yourself (see 'git help status')."),
1336                                          s->untracked_in_ms / 1000.0);
1337                 }
1338         } else if (s->commitable)
1339                 status_printf_ln(s, GIT_COLOR_NORMAL, _("Untracked files not listed%s"),
1340                         s->hints
1341                         ? _(" (use -u option to show untracked files)") : "");
1342
1343         if (s->verbose)
1344                 wt_status_print_verbose(s);
1345         if (!s->commitable) {
1346                 if (s->amend)
1347                         status_printf_ln(s, GIT_COLOR_NORMAL, _("No changes"));
1348                 else if (s->nowarn)
1349                         ; /* nothing */
1350                 else if (s->workdir_dirty) {
1351                         if (s->hints)
1352                                 printf(_("no changes added to commit "
1353                                          "(use \"git add\" and/or \"git commit -a\")\n"));
1354                         else
1355                                 printf(_("no changes added to commit\n"));
1356                 } else if (s->untracked.nr) {
1357                         if (s->hints)
1358                                 printf(_("nothing added to commit but untracked files "
1359                                          "present (use \"git add\" to track)\n"));
1360                         else
1361                                 printf(_("nothing added to commit but untracked files present\n"));
1362                 } else if (s->is_initial) {
1363                         if (s->hints)
1364                                 printf(_("nothing to commit (create/copy files "
1365                                          "and use \"git add\" to track)\n"));
1366                         else
1367                                 printf(_("nothing to commit\n"));
1368                 } else if (!s->show_untracked_files) {
1369                         if (s->hints)
1370                                 printf(_("nothing to commit (use -u to show untracked files)\n"));
1371                         else
1372                                 printf(_("nothing to commit\n"));
1373                 } else
1374                         printf(_("nothing to commit, working directory clean\n"));
1375         }
1376 }
1377
1378 static void wt_shortstatus_unmerged(struct string_list_item *it,
1379                            struct wt_status *s)
1380 {
1381         struct wt_status_change_data *d = it->util;
1382         const char *how = "??";
1383
1384         switch (d->stagemask) {
1385         case 1: how = "DD"; break; /* both deleted */
1386         case 2: how = "AU"; break; /* added by us */
1387         case 3: how = "UD"; break; /* deleted by them */
1388         case 4: how = "UA"; break; /* added by them */
1389         case 5: how = "DU"; break; /* deleted by us */
1390         case 6: how = "AA"; break; /* both added */
1391         case 7: how = "UU"; break; /* both modified */
1392         }
1393         color_fprintf(s->fp, color(WT_STATUS_UNMERGED, s), "%s", how);
1394         if (s->null_termination) {
1395                 fprintf(stdout, " %s%c", it->string, 0);
1396         } else {
1397                 struct strbuf onebuf = STRBUF_INIT;
1398                 const char *one;
1399                 one = quote_path(it->string, s->prefix, &onebuf);
1400                 printf(" %s\n", one);
1401                 strbuf_release(&onebuf);
1402         }
1403 }
1404
1405 static void wt_shortstatus_status(struct string_list_item *it,
1406                          struct wt_status *s)
1407 {
1408         struct wt_status_change_data *d = it->util;
1409
1410         if (d->index_status)
1411                 color_fprintf(s->fp, color(WT_STATUS_UPDATED, s), "%c", d->index_status);
1412         else
1413                 putchar(' ');
1414         if (d->worktree_status)
1415                 color_fprintf(s->fp, color(WT_STATUS_CHANGED, s), "%c", d->worktree_status);
1416         else
1417                 putchar(' ');
1418         putchar(' ');
1419         if (s->null_termination) {
1420                 fprintf(stdout, "%s%c", it->string, 0);
1421                 if (d->head_path)
1422                         fprintf(stdout, "%s%c", d->head_path, 0);
1423         } else {
1424                 struct strbuf onebuf = STRBUF_INIT;
1425                 const char *one;
1426                 if (d->head_path) {
1427                         one = quote_path(d->head_path, s->prefix, &onebuf);
1428                         if (*one != '"' && strchr(one, ' ') != NULL) {
1429                                 putchar('"');
1430                                 strbuf_addch(&onebuf, '"');
1431                                 one = onebuf.buf;
1432                         }
1433                         printf("%s -> ", one);
1434                         strbuf_release(&onebuf);
1435                 }
1436                 one = quote_path(it->string, s->prefix, &onebuf);
1437                 if (*one != '"' && strchr(one, ' ') != NULL) {
1438                         putchar('"');
1439                         strbuf_addch(&onebuf, '"');
1440                         one = onebuf.buf;
1441                 }
1442                 printf("%s\n", one);
1443                 strbuf_release(&onebuf);
1444         }
1445 }
1446
1447 static void wt_shortstatus_other(struct string_list_item *it,
1448                                  struct wt_status *s, const char *sign)
1449 {
1450         if (s->null_termination) {
1451                 fprintf(stdout, "%s %s%c", sign, it->string, 0);
1452         } else {
1453                 struct strbuf onebuf = STRBUF_INIT;
1454                 const char *one;
1455                 one = quote_path(it->string, s->prefix, &onebuf);
1456                 color_fprintf(s->fp, color(WT_STATUS_UNTRACKED, s), "%s", sign);
1457                 printf(" %s\n", one);
1458                 strbuf_release(&onebuf);
1459         }
1460 }
1461
1462 static void wt_shortstatus_print_tracking(struct wt_status *s)
1463 {
1464         struct branch *branch;
1465         const char *header_color = color(WT_STATUS_HEADER, s);
1466         const char *branch_color_local = color(WT_STATUS_LOCAL_BRANCH, s);
1467         const char *branch_color_remote = color(WT_STATUS_REMOTE_BRANCH, s);
1468
1469         const char *base;
1470         const char *branch_name;
1471         int num_ours, num_theirs;
1472         int upstream_is_gone = 0;
1473
1474         color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "## ");
1475
1476         if (!s->branch)
1477                 return;
1478         branch_name = s->branch;
1479
1480         if (starts_with(branch_name, "refs/heads/"))
1481                 branch_name += 11;
1482         else if (!strcmp(branch_name, "HEAD")) {
1483                 branch_name = _("HEAD (no branch)");
1484                 branch_color_local = color(WT_STATUS_NOBRANCH, s);
1485         }
1486
1487         branch = branch_get(s->branch + 11);
1488         if (s->is_initial)
1489                 color_fprintf(s->fp, header_color, _("Initial commit on "));
1490
1491         color_fprintf(s->fp, branch_color_local, "%s", branch_name);
1492
1493         switch (stat_tracking_info(branch, &num_ours, &num_theirs)) {
1494         case 0:
1495                 /* no base */
1496                 fputc(s->null_termination ? '\0' : '\n', s->fp);
1497                 return;
1498         case -1:
1499                 /* with "gone" base */
1500                 upstream_is_gone = 1;
1501                 break;
1502         default:
1503                 /* with base */
1504                 break;
1505         }
1506
1507         base = branch->merge[0]->dst;
1508         base = shorten_unambiguous_ref(base, 0);
1509         color_fprintf(s->fp, header_color, "...");
1510         color_fprintf(s->fp, branch_color_remote, "%s", base);
1511
1512         if (!upstream_is_gone && !num_ours && !num_theirs) {
1513                 fputc(s->null_termination ? '\0' : '\n', s->fp);
1514                 return;
1515         }
1516
1517         color_fprintf(s->fp, header_color, " [");
1518         if (upstream_is_gone) {
1519                 color_fprintf(s->fp, header_color, _("gone"));
1520         } else if (!num_ours) {
1521                 color_fprintf(s->fp, header_color, _("behind "));
1522                 color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
1523         } else if (!num_theirs) {
1524                 color_fprintf(s->fp, header_color, _("ahead "));
1525                 color_fprintf(s->fp, branch_color_local, "%d", num_ours);
1526         } else {
1527                 color_fprintf(s->fp, header_color, _("ahead "));
1528                 color_fprintf(s->fp, branch_color_local, "%d", num_ours);
1529                 color_fprintf(s->fp, header_color, _(", behind "));
1530                 color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
1531         }
1532
1533         color_fprintf(s->fp, header_color, "]");
1534         fputc(s->null_termination ? '\0' : '\n', s->fp);
1535 }
1536
1537 void wt_shortstatus_print(struct wt_status *s)
1538 {
1539         int i;
1540
1541         if (s->show_branch)
1542                 wt_shortstatus_print_tracking(s);
1543
1544         for (i = 0; i < s->change.nr; i++) {
1545                 struct wt_status_change_data *d;
1546                 struct string_list_item *it;
1547
1548                 it = &(s->change.items[i]);
1549                 d = it->util;
1550                 if (d->stagemask)
1551                         wt_shortstatus_unmerged(it, s);
1552                 else
1553                         wt_shortstatus_status(it, s);
1554         }
1555         for (i = 0; i < s->untracked.nr; i++) {
1556                 struct string_list_item *it;
1557
1558                 it = &(s->untracked.items[i]);
1559                 wt_shortstatus_other(it, s, "??");
1560         }
1561         for (i = 0; i < s->ignored.nr; i++) {
1562                 struct string_list_item *it;
1563
1564                 it = &(s->ignored.items[i]);
1565                 wt_shortstatus_other(it, s, "!!");
1566         }
1567 }
1568
1569 void wt_porcelain_print(struct wt_status *s)
1570 {
1571         s->use_color = 0;
1572         s->relative_paths = 0;
1573         s->prefix = NULL;
1574         wt_shortstatus_print(s);
1575 }