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