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, "%s", "");
 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, "%s", "");
 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, "%s", "");
 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, "%s", "");
 239 }
 240
 241 static void wt_status_print_trailer(struct wt_status *s)
 242 {
 243         status_printf_ln(s, color(WT_STATUS_HEADER, s), "%s", "");
 244 }
 245
 246 #define quote_path quote_path_relative
 247
 248 static const char *wt_status_unmerged_status_string(int stagemask)
 249 {
 250         switch (stagemask) {
 251         case 1:
 252                 return _("both deleted:");
 253         case 2:
 254                 return _("added by us:");
 255         case 3:
 256                 return _("deleted by them:");
 257         case 4:
 258                 return _("added by them:");
 259         case 5:
 260                 return _("deleted by us:");
 261         case 6:
 262                 return _("both added:");
 263         case 7:
 264                 return _("both modified:");
 265         default:
 266                 die(_("bug: unhandled unmerged status %x"), stagemask);
 267         }
 268 }
 269
 270 static const char *wt_status_diff_status_string(int status)
 271 {
 272         switch (status) {
 273         case DIFF_STATUS_ADDED:
 274                 return _("new file:");
 275         case DIFF_STATUS_COPIED:
 276                 return _("copied:");
 277         case DIFF_STATUS_DELETED:
 278                 return _("deleted:");
 279         case DIFF_STATUS_MODIFIED:
 280                 return _("modified:");
 281         case DIFF_STATUS_RENAMED:
 282                 return _("renamed:");
 283         case DIFF_STATUS_TYPE_CHANGED:
 284                 return _("typechange:");
 285         case DIFF_STATUS_UNKNOWN:
 286                 return _("unknown:");
 287         case DIFF_STATUS_UNMERGED:
 288                 return _("unmerged:");
 289         default:
 290                 return NULL;
 291         }
 292 }
 293
 294 static int maxwidth(const char *(*label)(int), int minval, int maxval)
 295 {
 296         int result = 0, i;
 297
 298         for (i = minval; i <= maxval; i++) {
 299                 const char *s = label(i);
 300                 int len = s ? utf8_strwidth(s) : 0;
 301                 if (len > result)
 302                         result = len;
 303         }
 304         return result;
 305 }
 306
 307 static void wt_status_print_unmerged_data(struct wt_status *s,
 308                                           struct string_list_item *it)
 309 {
 310         const char *c = color(WT_STATUS_UNMERGED, s);
 311         struct wt_status_change_data *d = it->util;
 312         struct strbuf onebuf = STRBUF_INIT;
 313         static char *padding;
 314         static int label_width;
 315         const char *one, *how;
 316         int len;
 317
 318         if (!padding) {
 319                 label_width = maxwidth(wt_status_unmerged_status_string, 1, 7);
 320                 label_width += strlen(" ");
 321                 padding = xmallocz(label_width);
 322                 memset(padding, ' ', label_width);
 323         }
 324
 325         one = quote_path(it->string, s->prefix, &onebuf);
 326         status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 327
 328         how = wt_status_unmerged_status_string(d->stagemask);
 329         len = label_width - utf8_strwidth(how);
 330         status_printf_more(s, c, "%s%.*s%s\n", how, len, padding, one);
 331         strbuf_release(&onebuf);
 332 }
 333
 334 static void wt_status_print_change_data(struct wt_status *s,
 335                                         int change_type,
 336                                         struct string_list_item *it)
 337 {
 338         struct wt_status_change_data *d = it->util;
 339         const char *c = color(change_type, s);
 340         int status;
 341         char *one_name;
 342         char *two_name;
 343         const char *one, *two;
 344         struct strbuf onebuf = STRBUF_INIT, twobuf = STRBUF_INIT;
 345         struct strbuf extra = STRBUF_INIT;
 346         static char *padding;
 347         static int label_width;
 348         const char *what;
 349         int len;
 350
 351         if (!padding) {
 352                 /* If DIFF_STATUS_* uses outside the range [A..Z], we're in trouble */
 353                 label_width = maxwidth(wt_status_diff_status_string, 'A', 'Z');
 354                 label_width += strlen(" ");
 355                 padding = xmallocz(label_width);
 356                 memset(padding, ' ', label_width);
 357         }
 358
 359         one_name = two_name = it->string;
 360         switch (change_type) {
 361         case WT_STATUS_UPDATED:
 362                 status = d->index_status;
 363                 if (d->head_path)
 364                         one_name = d->head_path;
 365                 break;
 366         case WT_STATUS_CHANGED:
 367                 if (d->new_submodule_commits || d->dirty_submodule) {
 368                         strbuf_addstr(&extra, " (");
 369                         if (d->new_submodule_commits)
 370                                 strbuf_addf(&extra, _("new commits, "));
 371                         if (d->dirty_submodule & DIRTY_SUBMODULE_MODIFIED)
 372                                 strbuf_addf(&extra, _("modified content, "));
 373                         if (d->dirty_submodule & DIRTY_SUBMODULE_UNTRACKED)
 374                                 strbuf_addf(&extra, _("untracked content, "));
 375                         strbuf_setlen(&extra, extra.len - 2);
 376                         strbuf_addch(&extra, ')');
 377                 }
 378                 status = d->worktree_status;
 379                 break;
 380         default:
 381                 die("BUG: unhandled change_type %d in wt_status_print_change_data",
 382                     change_type);
 383         }
 384
 385         one = quote_path(one_name, s->prefix, &onebuf);
 386         two = quote_path(two_name, s->prefix, &twobuf);
 387
 388         status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 389         what = wt_status_diff_status_string(status);
 390         if (!what)
 391                 die(_("bug: unhandled diff status %c"), status);
 392         len = label_width - utf8_strwidth(what);
 393         assert(len >= 0);
 394         if (status == DIFF_STATUS_COPIED || status == DIFF_STATUS_RENAMED)
 395                 status_printf_more(s, c, "%s%.*s%s -> %s",
 396                                    what, len, padding, one, two);
 397         else
 398                 status_printf_more(s, c, "%s%.*s%s",
 399                                    what, len, padding, one);
 400         if (extra.len) {
 401                 status_printf_more(s, color(WT_STATUS_HEADER, s), "%s", extra.buf);
 402                 strbuf_release(&extra);
 403         }
 404         status_printf_more(s, GIT_COLOR_NORMAL, "\n");
 405         strbuf_release(&onebuf);
 406         strbuf_release(&twobuf);
 407 }
 408
 409 static void wt_status_collect_changed_cb(struct diff_queue_struct *q,
 410                                          struct diff_options *options,
 411                                          void *data)
 412 {
 413         struct wt_status *s = data;
 414         int i;
 415
 416         if (!q->nr)
 417                 return;
 418         s->workdir_dirty = 1;
 419         for (i = 0; i < q->nr; i++) {
 420                 struct diff_filepair *p;
 421                 struct string_list_item *it;
 422                 struct wt_status_change_data *d;
 423
 424                 p = q->queue[i];
 425                 it = string_list_insert(&s->change, p->one->path);
 426                 d = it->util;
 427                 if (!d) {
 428                         d = xcalloc(1, sizeof(*d));
 429                         it->util = d;
 430                 }
 431                 if (!d->worktree_status)
 432                         d->worktree_status = p->status;
 433                 d->dirty_submodule = p->two->dirty_submodule;
 434                 if (S_ISGITLINK(p->two->mode))
 435                         d->new_submodule_commits = !!hashcmp(p->one->sha1, p->two->sha1);
 436         }
 437 }
 438
 439 static int unmerged_mask(const char *path)
 440 {
 441         int pos, mask;
 442         const struct cache_entry *ce;
 443
 444         pos = cache_name_pos(path, strlen(path));
 445         if (0 <= pos)
 446                 return 0;
 447
 448         mask = 0;
 449         pos = -pos-1;
 450         while (pos < active_nr) {
 451                 ce = active_cache[pos++];
 452                 if (strcmp(ce->name, path) || !ce_stage(ce))
 453                         break;
 454                 mask |= (1 << (ce_stage(ce) - 1));
 455         }
 456         return mask;
 457 }
 458
 459 static void wt_status_collect_updated_cb(struct diff_queue_struct *q,
 460                                          struct diff_options *options,
 461                                          void *data)
 462 {
 463         struct wt_status *s = data;
 464         int i;
 465
 466         for (i = 0; i < q->nr; i++) {
 467                 struct diff_filepair *p;
 468                 struct string_list_item *it;
 469                 struct wt_status_change_data *d;
 470
 471                 p = q->queue[i];
 472                 it = string_list_insert(&s->change, p->two->path);
 473                 d = it->util;
 474                 if (!d) {
 475                         d = xcalloc(1, sizeof(*d));
 476                         it->util = d;
 477                 }
 478                 if (!d->index_status)
 479                         d->index_status = p->status;
 480                 switch (p->status) {
 481                 case DIFF_STATUS_COPIED:
 482                 case DIFF_STATUS_RENAMED:
 483                         d->head_path = xstrdup(p->one->path);
 484                         break;
 485                 case DIFF_STATUS_UNMERGED:
 486                         d->stagemask = unmerged_mask(p->two->path);
 487                         break;
 488                 }
 489         }
 490 }
 491
 492 static void wt_status_collect_changes_worktree(struct wt_status *s)
 493 {
 494         struct rev_info rev;
 495
 496         init_revisions(&rev, NULL);
 497         setup_revisions(0, NULL, &rev, NULL);
 498         rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 499         DIFF_OPT_SET(&rev.diffopt, DIRTY_SUBMODULES);
 500         if (!s->show_untracked_files)
 501                 DIFF_OPT_SET(&rev.diffopt, IGNORE_UNTRACKED_IN_SUBMODULES);
 502         if (s->ignore_submodule_arg) {
 503                 DIFF_OPT_SET(&rev.diffopt, OVERRIDE_SUBMODULE_CONFIG);
 504                 handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
 505         }
 506         rev.diffopt.format_callback = wt_status_collect_changed_cb;
 507         rev.diffopt.format_callback_data = s;
 508         copy_pathspec(&rev.prune_data, &s->pathspec);
 509         run_diff_files(&rev, 0);
 510 }
 511
 512 static void wt_status_collect_changes_index(struct wt_status *s)
 513 {
 514         struct rev_info rev;
 515         struct setup_revision_opt opt;
 516
 517         init_revisions(&rev, NULL);
 518         memset(&opt, 0, sizeof(opt));
 519         opt.def = s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference;
 520         setup_revisions(0, NULL, &rev, &opt);
 521
 522         if (s->ignore_submodule_arg) {
 523                 DIFF_OPT_SET(&rev.diffopt, OVERRIDE_SUBMODULE_CONFIG);
 524                 handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
 525         }
 526
 527         rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 528         rev.diffopt.format_callback = wt_status_collect_updated_cb;
 529         rev.diffopt.format_callback_data = s;
 530         rev.diffopt.detect_rename = 1;
 531         rev.diffopt.rename_limit = 200;
 532         rev.diffopt.break_opt = 0;
 533         copy_pathspec(&rev.prune_data, &s->pathspec);
 534         run_diff_index(&rev, 1);
 535 }
 536
 537 static void wt_status_collect_changes_initial(struct wt_status *s)
 538 {
 539         int i;
 540
 541         for (i = 0; i < active_nr; i++) {
 542                 struct string_list_item *it;
 543                 struct wt_status_change_data *d;
 544                 const struct cache_entry *ce = active_cache[i];
 545
 546                 if (!ce_path_match(ce, &s->pathspec, NULL))
 547                         continue;
 548                 it = string_list_insert(&s->change, ce->name);
 549                 d = it->util;
 550                 if (!d) {
 551                         d = xcalloc(1, sizeof(*d));
 552                         it->util = d;
 553                 }
 554                 if (ce_stage(ce)) {
 555                         d->index_status = DIFF_STATUS_UNMERGED;
 556                         d->stagemask |= (1 << (ce_stage(ce) - 1));
 557                 }
 558                 else
 559                         d->index_status = DIFF_STATUS_ADDED;
 560         }
 561 }
 562
 563 static void wt_status_collect_untracked(struct wt_status *s)
 564 {
 565         int i;
 566         struct dir_struct dir;
 567         struct timeval t_begin;
 568
 569         if (!s->show_untracked_files)
 570                 return;
 571
 572         if (advice_status_u_option)
 573                 gettimeofday(&t_begin, NULL);
 574
 575         memset(&dir, 0, sizeof(dir));
 576         if (s->show_untracked_files != SHOW_ALL_UNTRACKED_FILES)
 577                 dir.flags |=
 578                         DIR_SHOW_OTHER_DIRECTORIES | DIR_HIDE_EMPTY_DIRECTORIES;
 579         if (s->show_ignored_files)
 580                 dir.flags |= DIR_SHOW_IGNORED_TOO;
 581         setup_standard_excludes(&dir);
 582
 583         fill_directory(&dir, &s->pathspec);
 584
 585         for (i = 0; i < dir.nr; i++) {
 586                 struct dir_entry *ent = dir.entries[i];
 587                 if (cache_name_is_other(ent->name, ent->len) &&
 588                     dir_path_match(ent, &s->pathspec, 0, NULL))
 589                         string_list_insert(&s->untracked, ent->name);
 590                 free(ent);
 591         }
 592
 593         for (i = 0; i < dir.ignored_nr; i++) {
 594                 struct dir_entry *ent = dir.ignored[i];
 595                 if (cache_name_is_other(ent->name, ent->len) &&
 596                     dir_path_match(ent, &s->pathspec, 0, NULL))
 597                         string_list_insert(&s->ignored, ent->name);
 598                 free(ent);
 599         }
 600
 601         free(dir.entries);
 602         free(dir.ignored);
 603         clear_directory(&dir);
 604
 605         if (advice_status_u_option) {
 606                 struct timeval t_end;
 607                 gettimeofday(&t_end, NULL);
 608                 s->untracked_in_ms =
 609                         (uint64_t)t_end.tv_sec * 1000 + t_end.tv_usec / 1000 -
 610                         ((uint64_t)t_begin.tv_sec * 1000 + t_begin.tv_usec / 1000);
 611         }
 612 }
 613
 614 void wt_status_collect(struct wt_status *s)
 615 {
 616         wt_status_collect_changes_worktree(s);
 617
 618         if (s->is_initial)
 619                 wt_status_collect_changes_initial(s);
 620         else
 621                 wt_status_collect_changes_index(s);
 622         wt_status_collect_untracked(s);
 623 }
 624
 625 static void wt_status_print_unmerged(struct wt_status *s)
 626 {
 627         int shown_header = 0;
 628         int i;
 629
 630         for (i = 0; i < s->change.nr; i++) {
 631                 struct wt_status_change_data *d;
 632                 struct string_list_item *it;
 633                 it = &(s->change.items[i]);
 634                 d = it->util;
 635                 if (!d->stagemask)
 636                         continue;
 637                 if (!shown_header) {
 638                         wt_status_print_unmerged_header(s);
 639                         shown_header = 1;
 640                 }
 641                 wt_status_print_unmerged_data(s, it);
 642         }
 643         if (shown_header)
 644                 wt_status_print_trailer(s);
 645
 646 }
 647
 648 static void wt_status_print_updated(struct wt_status *s)
 649 {
 650         int shown_header = 0;
 651         int i;
 652
 653         for (i = 0; i < s->change.nr; i++) {
 654                 struct wt_status_change_data *d;
 655                 struct string_list_item *it;
 656                 it = &(s->change.items[i]);
 657                 d = it->util;
 658                 if (!d->index_status ||
 659                     d->index_status == DIFF_STATUS_UNMERGED)
 660                         continue;
 661                 if (!shown_header) {
 662                         wt_status_print_cached_header(s);
 663                         s->commitable = 1;
 664                         shown_header = 1;
 665                 }
 666                 wt_status_print_change_data(s, WT_STATUS_UPDATED, it);
 667         }
 668         if (shown_header)
 669                 wt_status_print_trailer(s);
 670 }
 671
 672 /*
 673  * -1 : has delete
 674  *  0 : no change
 675  *  1 : some change but no delete
 676  */
 677 static int wt_status_check_worktree_changes(struct wt_status *s,
 678                                              int *dirty_submodules)
 679 {
 680         int i;
 681         int changes = 0;
 682
 683         *dirty_submodules = 0;
 684
 685         for (i = 0; i < s->change.nr; i++) {
 686                 struct wt_status_change_data *d;
 687                 d = s->change.items[i].util;
 688                 if (!d->worktree_status ||
 689                     d->worktree_status == DIFF_STATUS_UNMERGED)
 690                         continue;
 691                 if (!changes)
 692                         changes = 1;
 693                 if (d->dirty_submodule)
 694                         *dirty_submodules = 1;
 695                 if (d->worktree_status == DIFF_STATUS_DELETED)
 696                         changes = -1;
 697         }
 698         return changes;
 699 }
 700
 701 static void wt_status_print_changed(struct wt_status *s)
 702 {
 703         int i, dirty_submodules;
 704         int worktree_changes = wt_status_check_worktree_changes(s, &dirty_submodules);
 705
 706         if (!worktree_changes)
 707                 return;
 708
 709         wt_status_print_dirty_header(s, worktree_changes < 0, dirty_submodules);
 710
 711         for (i = 0; i < s->change.nr; i++) {
 712                 struct wt_status_change_data *d;
 713                 struct string_list_item *it;
 714                 it = &(s->change.items[i]);
 715                 d = it->util;
 716                 if (!d->worktree_status ||
 717                     d->worktree_status == DIFF_STATUS_UNMERGED)
 718                         continue;
 719                 wt_status_print_change_data(s, WT_STATUS_CHANGED, it);
 720         }
 721         wt_status_print_trailer(s);
 722 }
 723
 724 static void wt_status_print_submodule_summary(struct wt_status *s, int uncommitted)
 725 {
 726         struct child_process sm_summary;
 727         char summary_limit[64];
 728         char index[PATH_MAX];
 729         const char *env[] = { NULL, NULL };
 730         struct argv_array argv = ARGV_ARRAY_INIT;
 731         struct strbuf cmd_stdout = STRBUF_INIT;
 732         struct strbuf summary = STRBUF_INIT;
 733         char *summary_content;
 734         size_t len;
 735
 736         sprintf(summary_limit, "%d", s->submodule_summary);
 737         snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", s->index_file);
 738
 739         env[0] = index;
 740         argv_array_push(&argv, "submodule");
 741         argv_array_push(&argv, "summary");
 742         argv_array_push(&argv, uncommitted ? "--files" : "--cached");
 743         argv_array_push(&argv, "--for-status");
 744         argv_array_push(&argv, "--summary-limit");
 745         argv_array_push(&argv, summary_limit);
 746         if (!uncommitted)
 747                 argv_array_push(&argv, s->amend ? "HEAD^" : "HEAD");
 748
 749         memset(&sm_summary, 0, sizeof(sm_summary));
 750         sm_summary.argv = argv.argv;
 751         sm_summary.env = env;
 752         sm_summary.git_cmd = 1;
 753         sm_summary.no_stdin = 1;
 754         fflush(s->fp);
 755         sm_summary.out = -1;
 756
 757         run_command(&sm_summary);
 758         argv_array_clear(&argv);
 759
 760         len = strbuf_read(&cmd_stdout, sm_summary.out, 1024);
 761
 762         /* prepend header, only if there's an actual output */
 763         if (len) {
 764                 if (uncommitted)
 765                         strbuf_addstr(&summary, _("Submodules changed but not updated:"));
 766                 else
 767                         strbuf_addstr(&summary, _("Submodule changes to be committed:"));
 768                 strbuf_addstr(&summary, "\n\n");
 769         }
 770         strbuf_addbuf(&summary, &cmd_stdout);
 771         strbuf_release(&cmd_stdout);
 772
 773         if (s->display_comment_prefix) {
 774                 summary_content = strbuf_detach(&summary, &len);
 775                 strbuf_add_commented_lines(&summary, summary_content, len);
 776                 free(summary_content);
 777         }
 778
 779         fputs(summary.buf, s->fp);
 780         strbuf_release(&summary);
 781 }
 782
 783 static void wt_status_print_other(struct wt_status *s,
 784                                   struct string_list *l,
 785                                   const char *what,
 786                                   const char *how)
 787 {
 788         int i;
 789         struct strbuf buf = STRBUF_INIT;
 790         static struct string_list output = STRING_LIST_INIT_DUP;
 791         struct column_options copts;
 792
 793         if (!l->nr)
 794                 return;
 795
 796         wt_status_print_other_header(s, what, how);
 797
 798         for (i = 0; i < l->nr; i++) {
 799                 struct string_list_item *it;
 800                 const char *path;
 801                 it = &(l->items[i]);
 802                 path = quote_path(it->string, s->prefix, &buf);
 803                 if (column_active(s->colopts)) {
 804                         string_list_append(&output, path);
 805                         continue;
 806                 }
 807                 status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 808                 status_printf_more(s, color(WT_STATUS_UNTRACKED, s),
 809                                    "%s\n", path);
 810         }
 811
 812         strbuf_release(&buf);
 813         if (!column_active(s->colopts))
 814                 goto conclude;
 815
 816         strbuf_addf(&buf, "%s%s\t%s",
 817                     color(WT_STATUS_HEADER, s),
 818                     s->display_comment_prefix ? "#" : "",
 819                     color(WT_STATUS_UNTRACKED, s));
 820         memset(&copts, 0, sizeof(copts));
 821         copts.padding = 1;
 822         copts.indent = buf.buf;
 823         if (want_color(s->use_color))
 824                 copts.nl = GIT_COLOR_RESET "\n";
 825         print_columns(&output, s->colopts, &copts);
 826         string_list_clear(&output, 0);
 827         strbuf_release(&buf);
 828 conclude:
 829         status_printf_ln(s, GIT_COLOR_NORMAL, "%s", "");
 830 }
 831
 832 void wt_status_truncate_message_at_cut_line(struct strbuf *buf)
 833 {
 834         const char *p;
 835         struct strbuf pattern = STRBUF_INIT;
 836
 837         strbuf_addf(&pattern, "%c %s", comment_line_char, cut_line);
 838         p = strstr(buf->buf, pattern.buf);
 839         if (p && (p == buf->buf || p[-1] == '\n'))
 840                 strbuf_setlen(buf, p - buf->buf);
 841         strbuf_release(&pattern);
 842 }
 843
 844 void wt_status_add_cut_line(FILE *fp)
 845 {
 846         const char *explanation = _("Do not touch the line above.\nEverything below will be removed.");
 847         struct strbuf buf = STRBUF_INIT;
 848
 849         fprintf(fp, "%c %s", comment_line_char, cut_line);
 850         strbuf_add_commented_lines(&buf, explanation, strlen(explanation));
 851         fputs(buf.buf, fp);
 852         strbuf_release(&buf);
 853 }
 854
 855 static void wt_status_print_verbose(struct wt_status *s)
 856 {
 857         struct rev_info rev;
 858         struct setup_revision_opt opt;
 859
 860         init_revisions(&rev, NULL);
 861         DIFF_OPT_SET(&rev.diffopt, ALLOW_TEXTCONV);
 862
 863         memset(&opt, 0, sizeof(opt));
 864         opt.def = s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference;
 865         setup_revisions(0, NULL, &rev, &opt);
 866
 867         rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
 868         rev.diffopt.detect_rename = 1;
 869         rev.diffopt.file = s->fp;
 870         rev.diffopt.close_file = 0;
 871         /*
 872          * If we're not going to stdout, then we definitely don't
 873          * want color, since we are going to the commit message
 874          * file (and even the "auto" setting won't work, since it
 875          * will have checked isatty on stdout). But we then do want
 876          * to insert the scissor line here to reliably remove the
 877          * diff before committing.
 878          */
 879         if (s->fp != stdout) {
 880                 rev.diffopt.use_color = 0;
 881                 wt_status_add_cut_line(s->fp);
 882         }
 883         run_diff_index(&rev, 1);
 884 }
 885
 886 static void wt_status_print_tracking(struct wt_status *s)
 887 {
 888         struct strbuf sb = STRBUF_INIT;
 889         const char *cp, *ep;
 890         struct branch *branch;
 891         char comment_line_string[3];
 892         int i;
 893
 894         assert(s->branch && !s->is_initial);
 895         if (!starts_with(s->branch, "refs/heads/"))
 896                 return;
 897         branch = branch_get(s->branch + 11);
 898         if (!format_tracking_info(branch, &sb))
 899                 return;
 900
 901         i = 0;
 902         if (s->display_comment_prefix) {
 903                 comment_line_string[i++] = comment_line_char;
 904                 comment_line_string[i++] = ' ';
 905         }
 906         comment_line_string[i] = '\0';
 907
 908         for (cp = sb.buf; (ep = strchr(cp, '\n')) != NULL; cp = ep + 1)
 909                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s),
 910                                  "%s%.*s", comment_line_string,
 911                                  (int)(ep - cp), cp);
 912         if (s->display_comment_prefix)
 913                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "%c",
 914                                  comment_line_char);
 915         else
 916                 fputs("", s->fp);
 917 }
 918
 919 static int has_unmerged(struct wt_status *s)
 920 {
 921         int i;
 922
 923         for (i = 0; i < s->change.nr; i++) {
 924                 struct wt_status_change_data *d;
 925                 d = s->change.items[i].util;
 926                 if (d->stagemask)
 927                         return 1;
 928         }
 929         return 0;
 930 }
 931
 932 static void show_merge_in_progress(struct wt_status *s,
 933                                 struct wt_status_state *state,
 934                                 const char *color)
 935 {
 936         if (has_unmerged(s)) {
 937                 status_printf_ln(s, color, _("You have unmerged paths."));
 938                 if (s->hints)
 939                         status_printf_ln(s, color,
 940                                 _("  (fix conflicts and run \"git commit\")"));
 941         } else {
 942                 status_printf_ln(s, color,
 943                         _("All conflicts fixed but you are still merging."));
 944                 if (s->hints)
 945                         status_printf_ln(s, color,
 946                                 _("  (use \"git commit\" to conclude merge)"));
 947         }
 948         wt_status_print_trailer(s);
 949 }
 950
 951 static void show_am_in_progress(struct wt_status *s,
 952                                 struct wt_status_state *state,
 953                                 const char *color)
 954 {
 955         status_printf_ln(s, color,
 956                 _("You are in the middle of an am session."));
 957         if (state->am_empty_patch)
 958                 status_printf_ln(s, color,
 959                         _("The current patch is empty."));
 960         if (s->hints) {
 961                 if (!state->am_empty_patch)
 962                         status_printf_ln(s, color,
 963                                 _("  (fix conflicts and then run \"git am --continue\")"));
 964                 status_printf_ln(s, color,
 965                         _("  (use \"git am --skip\" to skip this patch)"));
 966                 status_printf_ln(s, color,
 967                         _("  (use \"git am --abort\" to restore the original branch)"));
 968         }
 969         wt_status_print_trailer(s);
 970 }
 971
 972 static char *read_line_from_git_path(const char *filename)
 973 {
 974         struct strbuf buf = STRBUF_INIT;
 975         FILE *fp = fopen(git_path("%s", filename), "r");
 976         if (!fp) {
 977                 strbuf_release(&buf);
 978                 return NULL;
 979         }
 980         strbuf_getline(&buf, fp, '\n');
 981         if (!fclose(fp)) {
 982                 return strbuf_detach(&buf, NULL);
 983         } else {
 984                 strbuf_release(&buf);
 985                 return NULL;
 986         }
 987 }
 988
 989 static int split_commit_in_progress(struct wt_status *s)
 990 {
 991         int split_in_progress = 0;
 992         char *head = read_line_from_git_path("HEAD");
 993         char *orig_head = read_line_from_git_path("ORIG_HEAD");
 994         char *rebase_amend = read_line_from_git_path("rebase-merge/amend");
 995         char *rebase_orig_head = read_line_from_git_path("rebase-merge/orig-head");
 996
 997         if (!head || !orig_head || !rebase_amend || !rebase_orig_head ||
 998             !s->branch || strcmp(s->branch, "HEAD"))
 999                 return split_in_progress;
1000
1001         if (!strcmp(rebase_amend, rebase_orig_head)) {
1002                 if (strcmp(head, rebase_amend))
1003                         split_in_progress = 1;
1004         } else if (strcmp(orig_head, rebase_orig_head)) {
1005                 split_in_progress = 1;
1006         }
1007
1008         if (!s->amend && !s->nowarn && !s->workdir_dirty)
1009                 split_in_progress = 0;
1010
1011         free(head);
1012         free(orig_head);
1013         free(rebase_amend);
1014         free(rebase_orig_head);
1015         return split_in_progress;
1016 }
1017
1018 static void show_rebase_in_progress(struct wt_status *s,
1019                                 struct wt_status_state *state,
1020                                 const char *color)
1021 {
1022         struct stat st;
1023
1024         if (has_unmerged(s)) {
1025                 if (state->branch)
1026                         status_printf_ln(s, color,
1027                                          _("You are currently rebasing branch '%s' on '%s'."),
1028                                          state->branch,
1029                                          state->onto);
1030                 else
1031                         status_printf_ln(s, color,
1032                                          _("You are currently rebasing."));
1033                 if (s->hints) {
1034                         status_printf_ln(s, color,
1035                                 _("  (fix conflicts and then run \"git rebase --continue\")"));
1036                         status_printf_ln(s, color,
1037                                 _("  (use \"git rebase --skip\" to skip this patch)"));
1038                         status_printf_ln(s, color,
1039                                 _("  (use \"git rebase --abort\" to check out the original branch)"));
1040                 }
1041         } else if (state->rebase_in_progress || !stat(git_path("MERGE_MSG"), &st)) {
1042                 if (state->branch)
1043                         status_printf_ln(s, color,
1044                                          _("You are currently rebasing branch '%s' on '%s'."),
1045                                          state->branch,
1046                                          state->onto);
1047                 else
1048                         status_printf_ln(s, color,
1049                                          _("You are currently rebasing."));
1050                 if (s->hints)
1051                         status_printf_ln(s, color,
1052                                 _("  (all conflicts fixed: run \"git rebase --continue\")"));
1053         } else if (split_commit_in_progress(s)) {
1054                 if (state->branch)
1055                         status_printf_ln(s, color,
1056                                          _("You are currently splitting a commit while rebasing branch '%s' on '%s'."),
1057                                          state->branch,
1058                                          state->onto);
1059                 else
1060                         status_printf_ln(s, color,
1061                                          _("You are currently splitting a commit during a rebase."));
1062                 if (s->hints)
1063                         status_printf_ln(s, color,
1064                                 _("  (Once your working directory is clean, run \"git rebase --continue\")"));
1065         } else {
1066                 if (state->branch)
1067                         status_printf_ln(s, color,
1068                                          _("You are currently editing a commit while rebasing branch '%s' on '%s'."),
1069                                          state->branch,
1070                                          state->onto);
1071                 else
1072                         status_printf_ln(s, color,
1073                                          _("You are currently editing a commit during a rebase."));
1074                 if (s->hints && !s->amend) {
1075                         status_printf_ln(s, color,
1076                                 _("  (use \"git commit --amend\" to amend the current commit)"));
1077                         status_printf_ln(s, color,
1078                                 _("  (use \"git rebase --continue\" once you are satisfied with your changes)"));
1079                 }
1080         }
1081         wt_status_print_trailer(s);
1082 }
1083
1084 static void show_cherry_pick_in_progress(struct wt_status *s,
1085                                         struct wt_status_state *state,
1086                                         const char *color)
1087 {
1088         status_printf_ln(s, color, _("You are currently cherry-picking commit %s."),
1089                         find_unique_abbrev(state->cherry_pick_head_sha1, DEFAULT_ABBREV));
1090         if (s->hints) {
1091                 if (has_unmerged(s))
1092                         status_printf_ln(s, color,
1093                                 _("  (fix conflicts and run \"git cherry-pick --continue\")"));
1094                 else
1095                         status_printf_ln(s, color,
1096                                 _("  (all conflicts fixed: run \"git cherry-pick --continue\")"));
1097                 status_printf_ln(s, color,
1098                         _("  (use \"git cherry-pick --abort\" to cancel the cherry-pick operation)"));
1099         }
1100         wt_status_print_trailer(s);
1101 }
1102
1103 static void show_revert_in_progress(struct wt_status *s,
1104                                         struct wt_status_state *state,
1105                                         const char *color)
1106 {
1107         status_printf_ln(s, color, _("You are currently reverting commit %s."),
1108                          find_unique_abbrev(state->revert_head_sha1, DEFAULT_ABBREV));
1109         if (s->hints) {
1110                 if (has_unmerged(s))
1111                         status_printf_ln(s, color,
1112                                 _("  (fix conflicts and run \"git revert --continue\")"));
1113                 else
1114                         status_printf_ln(s, color,
1115                                 _("  (all conflicts fixed: run \"git revert --continue\")"));
1116                 status_printf_ln(s, color,
1117                         _("  (use \"git revert --abort\" to cancel the revert operation)"));
1118         }
1119         wt_status_print_trailer(s);
1120 }
1121
1122 static void show_bisect_in_progress(struct wt_status *s,
1123                                 struct wt_status_state *state,
1124                                 const char *color)
1125 {
1126         if (state->branch)
1127                 status_printf_ln(s, color,
1128                                  _("You are currently bisecting, started from branch '%s'."),
1129                                  state->branch);
1130         else
1131                 status_printf_ln(s, color,
1132                                  _("You are currently bisecting."));
1133         if (s->hints)
1134                 status_printf_ln(s, color,
1135                         _("  (use \"git bisect reset\" to get back to the original branch)"));
1136         wt_status_print_trailer(s);
1137 }
1138
1139 /*
1140  * Extract branch information from rebase/bisect
1141  */
1142 static char *read_and_strip_branch(const char *path)
1143 {
1144         struct strbuf sb = STRBUF_INIT;
1145         unsigned char sha1[20];
1146
1147         if (strbuf_read_file(&sb, git_path("%s", path), 0) <= 0)
1148                 goto got_nothing;
1149
1150         while (&sb.len && sb.buf[sb.len - 1] == '\n')
1151                 strbuf_setlen(&sb, sb.len - 1);
1152         if (!sb.len)
1153                 goto got_nothing;
1154         if (starts_with(sb.buf, "refs/heads/"))
1155                 strbuf_remove(&sb,0, strlen("refs/heads/"));
1156         else if (starts_with(sb.buf, "refs/"))
1157                 ;
1158         else if (!get_sha1_hex(sb.buf, sha1)) {
1159                 const char *abbrev;
1160                 abbrev = find_unique_abbrev(sha1, DEFAULT_ABBREV);
1161                 strbuf_reset(&sb);
1162                 strbuf_addstr(&sb, abbrev);
1163         } else if (!strcmp(sb.buf, "detached HEAD")) /* rebase */
1164                 goto got_nothing;
1165         else                    /* bisect */
1166                 ;
1167         return strbuf_detach(&sb, NULL);
1168
1169 got_nothing:
1170         strbuf_release(&sb);
1171         return NULL;
1172 }
1173
1174 struct grab_1st_switch_cbdata {
1175         struct strbuf buf;
1176         unsigned char nsha1[20];
1177 };
1178
1179 static int grab_1st_switch(unsigned char *osha1, unsigned char *nsha1,
1180                            const char *email, unsigned long timestamp, int tz,
1181                            const char *message, void *cb_data)
1182 {
1183         struct grab_1st_switch_cbdata *cb = cb_data;
1184         const char *target = NULL, *end;
1185
1186         if (!starts_with(message, "checkout: moving from "))
1187                 return 0;
1188         message += strlen("checkout: moving from ");
1189         target = strstr(message, " to ");
1190         if (!target)
1191                 return 0;
1192         target += strlen(" to ");
1193         strbuf_reset(&cb->buf);
1194         hashcpy(cb->nsha1, nsha1);
1195         for (end = target; *end && *end != '\n'; end++)
1196                 ;
1197         strbuf_add(&cb->buf, target, end - target);
1198         return 1;
1199 }
1200
1201 static void wt_status_get_detached_from(struct wt_status_state *state)
1202 {
1203         struct grab_1st_switch_cbdata cb;
1204         struct commit *commit;
1205         unsigned char sha1[20];
1206         char *ref = NULL;
1207
1208         strbuf_init(&cb.buf, 0);
1209         if (for_each_reflog_ent_reverse("HEAD", grab_1st_switch, &cb) <= 0) {
1210                 strbuf_release(&cb.buf);
1211                 return;
1212         }
1213
1214         if (dwim_ref(cb.buf.buf, cb.buf.len, sha1, &ref) == 1 &&
1215             /* sha1 is a commit? match without further lookup */
1216             (!hashcmp(cb.nsha1, sha1) ||
1217              /* perhaps sha1 is a tag, try to dereference to a commit */
1218              ((commit = lookup_commit_reference_gently(sha1, 1)) != NULL &&
1219               !hashcmp(cb.nsha1, commit->object.sha1)))) {
1220                 int ofs;
1221                 if (starts_with(ref, "refs/tags/"))
1222                         ofs = strlen("refs/tags/");
1223                 else if (starts_with(ref, "refs/remotes/"))
1224                         ofs = strlen("refs/remotes/");
1225                 else
1226                         ofs = 0;
1227                 state->detached_from = xstrdup(ref + ofs);
1228         } else
1229                 state->detached_from =
1230                         xstrdup(find_unique_abbrev(cb.nsha1, DEFAULT_ABBREV));
1231         hashcpy(state->detached_sha1, cb.nsha1);
1232
1233         free(ref);
1234         strbuf_release(&cb.buf);
1235 }
1236
1237 void wt_status_get_state(struct wt_status_state *state,
1238                          int get_detached_from)
1239 {
1240         struct stat st;
1241         unsigned char sha1[20];
1242
1243         if (!stat(git_path("MERGE_HEAD"), &st)) {
1244                 state->merge_in_progress = 1;
1245         } else if (!stat(git_path("rebase-apply"), &st)) {
1246                 if (!stat(git_path("rebase-apply/applying"), &st)) {
1247                         state->am_in_progress = 1;
1248                         if (!stat(git_path("rebase-apply/patch"), &st) && !st.st_size)
1249                                 state->am_empty_patch = 1;
1250                 } else {
1251                         state->rebase_in_progress = 1;
1252                         state->branch = read_and_strip_branch("rebase-apply/head-name");
1253                         state->onto = read_and_strip_branch("rebase-apply/onto");
1254                 }
1255         } else if (!stat(git_path("rebase-merge"), &st)) {
1256                 if (!stat(git_path("rebase-merge/interactive"), &st))
1257                         state->rebase_interactive_in_progress = 1;
1258                 else
1259                         state->rebase_in_progress = 1;
1260                 state->branch = read_and_strip_branch("rebase-merge/head-name");
1261                 state->onto = read_and_strip_branch("rebase-merge/onto");
1262         } else if (!stat(git_path("CHERRY_PICK_HEAD"), &st) &&
1263                         !get_sha1("CHERRY_PICK_HEAD", sha1)) {
1264                 state->cherry_pick_in_progress = 1;
1265                 hashcpy(state->cherry_pick_head_sha1, sha1);
1266         }
1267         if (!stat(git_path("BISECT_LOG"), &st)) {
1268                 state->bisect_in_progress = 1;
1269                 state->branch = read_and_strip_branch("BISECT_START");
1270         }
1271         if (!stat(git_path("REVERT_HEAD"), &st) &&
1272             !get_sha1("REVERT_HEAD", sha1)) {
1273                 state->revert_in_progress = 1;
1274                 hashcpy(state->revert_head_sha1, sha1);
1275         }
1276
1277         if (get_detached_from)
1278                 wt_status_get_detached_from(state);
1279 }
1280
1281 static void wt_status_print_state(struct wt_status *s,
1282                                   struct wt_status_state *state)
1283 {
1284         const char *state_color = color(WT_STATUS_HEADER, s);
1285         if (state->merge_in_progress)
1286                 show_merge_in_progress(s, state, state_color);
1287         else if (state->am_in_progress)
1288                 show_am_in_progress(s, state, state_color);
1289         else if (state->rebase_in_progress || state->rebase_interactive_in_progress)
1290                 show_rebase_in_progress(s, state, state_color);
1291         else if (state->cherry_pick_in_progress)
1292                 show_cherry_pick_in_progress(s, state, state_color);
1293         else if (state->revert_in_progress)
1294                 show_revert_in_progress(s, state, state_color);
1295         if (state->bisect_in_progress)
1296                 show_bisect_in_progress(s, state, state_color);
1297 }
1298
1299 void wt_status_print(struct wt_status *s)
1300 {
1301         const char *branch_color = color(WT_STATUS_ONBRANCH, s);
1302         const char *branch_status_color = color(WT_STATUS_HEADER, s);
1303         struct wt_status_state state;
1304
1305         memset(&state, 0, sizeof(state));
1306         wt_status_get_state(&state,
1307                             s->branch && !strcmp(s->branch, "HEAD"));
1308
1309         if (s->branch) {
1310                 const char *on_what = _("On branch ");
1311                 const char *branch_name = s->branch;
1312                 if (starts_with(branch_name, "refs/heads/"))
1313                         branch_name += 11;
1314                 else if (!strcmp(branch_name, "HEAD")) {
1315                         branch_status_color = color(WT_STATUS_NOBRANCH, s);
1316                         if (state.rebase_in_progress || state.rebase_interactive_in_progress) {
1317                                 on_what = _("rebase in progress; onto ");
1318                                 branch_name = state.onto;
1319                         } else if (state.detached_from) {
1320                                 unsigned char sha1[20];
1321                                 branch_name = state.detached_from;
1322                                 if (!get_sha1("HEAD", sha1) &&
1323                                     !hashcmp(sha1, state.detached_sha1))
1324                                         on_what = _("HEAD detached at ");
1325                                 else
1326                                         on_what = _("HEAD detached from ");
1327                         } else {
1328                                 branch_name = "";
1329                                 on_what = _("Not currently on any branch.");
1330                         }
1331                 }
1332                 status_printf(s, color(WT_STATUS_HEADER, s), "%s", "");
1333                 status_printf_more(s, branch_status_color, "%s", on_what);
1334                 status_printf_more(s, branch_color, "%s\n", branch_name);
1335                 if (!s->is_initial)
1336                         wt_status_print_tracking(s);
1337         }
1338
1339         wt_status_print_state(s, &state);
1340         free(state.branch);
1341         free(state.onto);
1342         free(state.detached_from);
1343
1344         if (s->is_initial) {
1345                 status_printf_ln(s, color(WT_STATUS_HEADER, s), "%s", "");
1346                 status_printf_ln(s, color(WT_STATUS_HEADER, s), _("Initial commit"));
1347                 status_printf_ln(s, color(WT_STATUS_HEADER, s), "%s", "");
1348         }
1349
1350         wt_status_print_updated(s);
1351         wt_status_print_unmerged(s);
1352         wt_status_print_changed(s);
1353         if (s->submodule_summary &&
1354             (!s->ignore_submodule_arg ||
1355              strcmp(s->ignore_submodule_arg, "all"))) {
1356                 wt_status_print_submodule_summary(s, 0);  /* staged */
1357                 wt_status_print_submodule_summary(s, 1);  /* unstaged */
1358         }
1359         if (s->show_untracked_files) {
1360                 wt_status_print_other(s, &s->untracked, _("Untracked files"), "add");
1361                 if (s->show_ignored_files)
1362                         wt_status_print_other(s, &s->ignored, _("Ignored files"), "add -f");
1363                 if (advice_status_u_option && 2000 < s->untracked_in_ms) {
1364                         status_printf_ln(s, GIT_COLOR_NORMAL, "%s", "");
1365                         status_printf_ln(s, GIT_COLOR_NORMAL,
1366                                          _("It took %.2f seconds to enumerate untracked files. 'status -uno'\n"
1367                                            "may speed it up, but you have to be careful not to forget to add\n"
1368                                            "new files yourself (see 'git help status')."),
1369                                          s->untracked_in_ms / 1000.0);
1370                 }
1371         } else if (s->commitable)
1372                 status_printf_ln(s, GIT_COLOR_NORMAL, _("Untracked files not listed%s"),
1373                         s->hints
1374                         ? _(" (use -u option to show untracked files)") : "");
1375
1376         if (s->verbose)
1377                 wt_status_print_verbose(s);
1378         if (!s->commitable) {
1379                 if (s->amend)
1380                         status_printf_ln(s, GIT_COLOR_NORMAL, _("No changes"));
1381                 else if (s->nowarn)
1382                         ; /* nothing */
1383                 else if (s->workdir_dirty) {
1384                         if (s->hints)
1385                                 printf(_("no changes added to commit "
1386                                          "(use \"git add\" and/or \"git commit -a\")\n"));
1387                         else
1388                                 printf(_("no changes added to commit\n"));
1389                 } else if (s->untracked.nr) {
1390                         if (s->hints)
1391                                 printf(_("nothing added to commit but untracked files "
1392                                          "present (use \"git add\" to track)\n"));
1393                         else
1394                                 printf(_("nothing added to commit but untracked files present\n"));
1395                 } else if (s->is_initial) {
1396                         if (s->hints)
1397                                 printf(_("nothing to commit (create/copy files "
1398                                          "and use \"git add\" to track)\n"));
1399                         else
1400                                 printf(_("nothing to commit\n"));
1401                 } else if (!s->show_untracked_files) {
1402                         if (s->hints)
1403                                 printf(_("nothing to commit (use -u to show untracked files)\n"));
1404                         else
1405                                 printf(_("nothing to commit\n"));
1406                 } else
1407                         printf(_("nothing to commit, working directory clean\n"));
1408         }
1409 }
1410
1411 static void wt_shortstatus_unmerged(struct string_list_item *it,
1412                            struct wt_status *s)
1413 {
1414         struct wt_status_change_data *d = it->util;
1415         const char *how = "??";
1416
1417         switch (d->stagemask) {
1418         case 1: how = "DD"; break; /* both deleted */
1419         case 2: how = "AU"; break; /* added by us */
1420         case 3: how = "UD"; break; /* deleted by them */
1421         case 4: how = "UA"; break; /* added by them */
1422         case 5: how = "DU"; break; /* deleted by us */
1423         case 6: how = "AA"; break; /* both added */
1424         case 7: how = "UU"; break; /* both modified */
1425         }
1426         color_fprintf(s->fp, color(WT_STATUS_UNMERGED, s), "%s", how);
1427         if (s->null_termination) {
1428                 fprintf(stdout, " %s%c", it->string, 0);
1429         } else {
1430                 struct strbuf onebuf = STRBUF_INIT;
1431                 const char *one;
1432                 one = quote_path(it->string, s->prefix, &onebuf);
1433                 printf(" %s\n", one);
1434                 strbuf_release(&onebuf);
1435         }
1436 }
1437
1438 static void wt_shortstatus_status(struct string_list_item *it,
1439                          struct wt_status *s)
1440 {
1441         struct wt_status_change_data *d = it->util;
1442
1443         if (d->index_status)
1444                 color_fprintf(s->fp, color(WT_STATUS_UPDATED, s), "%c", d->index_status);
1445         else
1446                 putchar(' ');
1447         if (d->worktree_status)
1448                 color_fprintf(s->fp, color(WT_STATUS_CHANGED, s), "%c", d->worktree_status);
1449         else
1450                 putchar(' ');
1451         putchar(' ');
1452         if (s->null_termination) {
1453                 fprintf(stdout, "%s%c", it->string, 0);
1454                 if (d->head_path)
1455                         fprintf(stdout, "%s%c", d->head_path, 0);
1456         } else {
1457                 struct strbuf onebuf = STRBUF_INIT;
1458                 const char *one;
1459                 if (d->head_path) {
1460                         one = quote_path(d->head_path, s->prefix, &onebuf);
1461                         if (*one != '"' && strchr(one, ' ') != NULL) {
1462                                 putchar('"');
1463                                 strbuf_addch(&onebuf, '"');
1464                                 one = onebuf.buf;
1465                         }
1466                         printf("%s -> ", one);
1467                         strbuf_release(&onebuf);
1468                 }
1469                 one = quote_path(it->string, s->prefix, &onebuf);
1470                 if (*one != '"' && strchr(one, ' ') != NULL) {
1471                         putchar('"');
1472                         strbuf_addch(&onebuf, '"');
1473                         one = onebuf.buf;
1474                 }
1475                 printf("%s\n", one);
1476                 strbuf_release(&onebuf);
1477         }
1478 }
1479
1480 static void wt_shortstatus_other(struct string_list_item *it,
1481                                  struct wt_status *s, const char *sign)
1482 {
1483         if (s->null_termination) {
1484                 fprintf(stdout, "%s %s%c", sign, it->string, 0);
1485         } else {
1486                 struct strbuf onebuf = STRBUF_INIT;
1487                 const char *one;
1488                 one = quote_path(it->string, s->prefix, &onebuf);
1489                 color_fprintf(s->fp, color(WT_STATUS_UNTRACKED, s), "%s", sign);
1490                 printf(" %s\n", one);
1491                 strbuf_release(&onebuf);
1492         }
1493 }
1494
1495 static void wt_shortstatus_print_tracking(struct wt_status *s)
1496 {
1497         struct branch *branch;
1498         const char *header_color = color(WT_STATUS_HEADER, s);
1499         const char *branch_color_local = color(WT_STATUS_LOCAL_BRANCH, s);
1500         const char *branch_color_remote = color(WT_STATUS_REMOTE_BRANCH, s);
1501
1502         const char *base;
1503         const char *branch_name;
1504         int num_ours, num_theirs;
1505         int upstream_is_gone = 0;
1506
1507         color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "## ");
1508
1509         if (!s->branch)
1510                 return;
1511         branch_name = s->branch;
1512
1513         if (starts_with(branch_name, "refs/heads/"))
1514                 branch_name += 11;
1515         else if (!strcmp(branch_name, "HEAD")) {
1516                 branch_name = _("HEAD (no branch)");
1517                 branch_color_local = color(WT_STATUS_NOBRANCH, s);
1518         }
1519
1520         branch = branch_get(s->branch + 11);
1521         if (s->is_initial)
1522                 color_fprintf(s->fp, header_color, _("Initial commit on "));
1523
1524         color_fprintf(s->fp, branch_color_local, "%s", branch_name);
1525
1526         switch (stat_tracking_info(branch, &num_ours, &num_theirs)) {
1527         case 0:
1528                 /* no base */
1529                 fputc(s->null_termination ? '\0' : '\n', s->fp);
1530                 return;
1531         case -1:
1532                 /* with "gone" base */
1533                 upstream_is_gone = 1;
1534                 break;
1535         default:
1536                 /* with base */
1537                 break;
1538         }
1539
1540         base = branch->merge[0]->dst;
1541         base = shorten_unambiguous_ref(base, 0);
1542         color_fprintf(s->fp, header_color, "...");
1543         color_fprintf(s->fp, branch_color_remote, "%s", base);
1544
1545         if (!upstream_is_gone && !num_ours && !num_theirs) {
1546                 fputc(s->null_termination ? '\0' : '\n', s->fp);
1547                 return;
1548         }
1549
1550 #define LABEL(string) (s->no_gettext ? (string) : _(string))
1551
1552         color_fprintf(s->fp, header_color, " [");
1553         if (upstream_is_gone) {
1554                 color_fprintf(s->fp, header_color, LABEL(N_("gone")));
1555         } else if (!num_ours) {
1556                 color_fprintf(s->fp, header_color, LABEL(N_("behind ")));
1557                 color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
1558         } else if (!num_theirs) {
1559                 color_fprintf(s->fp, header_color, LABEL(N_(("ahead "))));
1560                 color_fprintf(s->fp, branch_color_local, "%d", num_ours);
1561         } else {
1562                 color_fprintf(s->fp, header_color, LABEL(N_(("ahead "))));
1563                 color_fprintf(s->fp, branch_color_local, "%d", num_ours);
1564                 color_fprintf(s->fp, header_color, ", %s", LABEL(N_("behind ")));
1565                 color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
1566         }
1567
1568         color_fprintf(s->fp, header_color, "]");
1569         fputc(s->null_termination ? '\0' : '\n', s->fp);
1570 }
1571
1572 void wt_shortstatus_print(struct wt_status *s)
1573 {
1574         int i;
1575
1576         if (s->show_branch)
1577                 wt_shortstatus_print_tracking(s);
1578
1579         for (i = 0; i < s->change.nr; i++) {
1580                 struct wt_status_change_data *d;
1581                 struct string_list_item *it;
1582
1583                 it = &(s->change.items[i]);
1584                 d = it->util;
1585                 if (d->stagemask)
1586                         wt_shortstatus_unmerged(it, s);
1587                 else
1588                         wt_shortstatus_status(it, s);
1589         }
1590         for (i = 0; i < s->untracked.nr; i++) {
1591                 struct string_list_item *it;
1592
1593                 it = &(s->untracked.items[i]);
1594                 wt_shortstatus_other(it, s, "??");
1595         }
1596         for (i = 0; i < s->ignored.nr; i++) {
1597                 struct string_list_item *it;
1598
1599                 it = &(s->ignored.items[i]);
1600                 wt_shortstatus_other(it, s, "!!");
1601         }
1602 }
1603
1604 void wt_porcelain_print(struct wt_status *s)
1605 {
1606         s->use_color = 0;
1607         s->relative_paths = 0;
1608         s->prefix = NULL;
1609         s->no_gettext = 1;
1610         wt_shortstatus_print(s);
1611 }