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