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

   1 #include "cache.h"
   2 #include "wt-status.h"
   3 #include "object.h"
   4 #include "dir.h"
   5 #include "commit.h"
   6 #include "diff.h"
   7 #include "revision.h"
   8 #include "diffcore.h"
   9 #include "quote.h"
  10 #include "run-command.h"
  11 #include "remote.h"
  12 #include "refs.h"
  13 #include "submodule.h"
  14 #include "column.h"
  15 #include "strbuf.h"
  16
  17 static char default_wt_status_colors[][COLOR_MAXLEN] = {
  18         GIT_COLOR_NORMAL, /* WT_STATUS_HEADER */
  19         GIT_COLOR_GREEN,  /* WT_STATUS_UPDATED */
  20         GIT_COLOR_RED,    /* WT_STATUS_CHANGED */
  21         GIT_COLOR_RED,    /* WT_STATUS_UNTRACKED */
  22         GIT_COLOR_RED,    /* WT_STATUS_NOBRANCH */
  23         GIT_COLOR_RED,    /* WT_STATUS_UNMERGED */
  24         GIT_COLOR_GREEN,  /* WT_STATUS_LOCAL_BRANCH */
  25         GIT_COLOR_RED,    /* WT_STATUS_REMOTE_BRANCH */
  26         GIT_COLOR_NIL,    /* WT_STATUS_ONBRANCH */
  27 };
  28
  29 static const char *color(int slot, struct wt_status *s)
  30 {
  31         const char *c = "";
  32         if (want_color(s->use_color))
  33                 c = s->color_palette[slot];
  34         if (slot == WT_STATUS_ONBRANCH && color_is_nil(c))
  35                 c = s->color_palette[WT_STATUS_HEADER];
  36         return c;
  37 }
  38
  39 static void status_vprintf(struct wt_status *s, int at_bol, const char *color,
  40                 const char *fmt, va_list ap, const char *trail)
  41 {
  42         struct strbuf sb = STRBUF_INIT;
  43         struct strbuf linebuf = STRBUF_INIT;
  44         const char *line, *eol;
  45
  46         strbuf_vaddf(&sb, fmt, ap);
  47         if (!sb.len) {
  48                 strbuf_addch(&sb, '#');
  49                 if (!trail)
  50                         strbuf_addch(&sb, ' ');
  51                 color_print_strbuf(s->fp, color, &sb);
  52                 if (trail)
  53                         fprintf(s->fp, "%s", trail);
  54                 strbuf_release(&sb);
  55                 return;
  56         }
  57         for (line = sb.buf; *line; line = eol + 1) {
  58                 eol = strchr(line, '\n');
  59
  60                 strbuf_reset(&linebuf);
  61                 if (at_bol) {
  62                         strbuf_addch(&linebuf, '#');
  63                         if (*line != '\n' && *line != '\t')
  64                                 strbuf_addch(&linebuf, ' ');
  65                 }
  66                 if (eol)
  67                         strbuf_add(&linebuf, line, eol - line);
  68                 else
  69                         strbuf_addstr(&linebuf, line);
  70                 color_print_strbuf(s->fp, color, &linebuf);
  71                 if (eol)
  72                         fprintf(s->fp, "\n");
  73                 else
  74                         break;
  75                 at_bol = 1;
  76         }
  77         if (trail)
  78                 fprintf(s->fp, "%s", trail);
  79         strbuf_release(&linebuf);
  80         strbuf_release(&sb);
  81 }
  82
  83 void status_printf_ln(struct wt_status *s, const char *color,
  84                         const char *fmt, ...)
  85 {
  86         va_list ap;
  87
  88         va_start(ap, fmt);
  89         status_vprintf(s, 1, color, fmt, ap, "\n");
  90         va_end(ap);
  91 }
  92
  93 void status_printf(struct wt_status *s, const char *color,
  94                         const char *fmt, ...)
  95 {
  96         va_list ap;
  97
  98         va_start(ap, fmt);
  99         status_vprintf(s, 1, color, fmt, ap, NULL);
 100         va_end(ap);
 101 }
 102
 103 static void status_printf_more(struct wt_status *s, const char *color,
 104                                const char *fmt, ...)
 105 {
 106         va_list ap;
 107
 108         va_start(ap, fmt);
 109         status_vprintf(s, 0, color, fmt, ap, NULL);
 110         va_end(ap);
 111 }
 112
 113 void wt_status_prepare(struct wt_status *s)
 114 {
 115         unsigned char sha1[20];
 116
 117         memset(s, 0, sizeof(*s));
 118         memcpy(s->color_palette, default_wt_status_colors,
 119                sizeof(default_wt_status_colors));
 120         s->show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
 121         s->use_color = -1;
 122         s->relative_paths = 1;
 123         s->branch = resolve_refdup("HEAD", sha1, 0, NULL);
 124         s->reference = "HEAD";
 125         s->fp = stdout;
 126         s->index_file = get_index_file();
 127         s->change.strdup_strings = 1;
 128         s->untracked.strdup_strings = 1;
 129         s->ignored.strdup_strings = 1;
 130 }
 131
 132 static void wt_status_print_unmerged_header(struct wt_status *s)
 133 {
 134         int i;
 135         int del_mod_conflict = 0;
 136         int both_deleted = 0;
 137         int not_deleted = 0;
 138         const char *c = color(WT_STATUS_HEADER, s);
 139
 140         status_printf_ln(s, c, _("Unmerged paths:"));
 141
 142         for (i = 0; i < s->change.nr; i++) {
 143                 struct string_list_item *it = &(s->change.items[i]);
 144                 struct wt_status_change_data *d = it->util;
 145
 146                 switch (d->stagemask) {
 147                 case 0:
 148                         break;
 149                 case 1:
 150                         both_deleted = 1;
 151                         break;
 152                 case 3:
 153                 case 5:
 154                         del_mod_conflict = 1;
 155                         break;
 156                 default:
 157                         not_deleted = 1;
 158                         break;
 159                 }
 160         }
 161
 162         if (!advice_status_hints)
 163                 return;
 164         if (s->whence != FROM_COMMIT)
 165                 ;
 166         else if (!s->is_initial)
 167                 status_printf_ln(s, c, _("  (use \"git reset %s <file>...\" to unstage)"), s->reference);
 168         else
 169                 status_printf_ln(s, c, _("  (use \"git rm --cached <file>...\" to unstage)"));
 170
 171         if (!both_deleted) {
 172                 if (!del_mod_conflict)
 173                         status_printf_ln(s, c, _("  (use \"git add <file>...\" to mark resolution)"));
 174                 else
 175                         status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" as appropriate to mark resolution)"));
 176         } else if (!del_mod_conflict && !not_deleted) {
 177                 status_printf_ln(s, c, _("  (use \"git rm <file>...\" to mark resolution)"));
 178         } else {
 179                 status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" as appropriate to mark resolution)"));
 180         }
 181         status_printf_ln(s, c, "");
 182 }
 183
 184 static void wt_status_print_cached_header(struct wt_status *s)
 185 {
 186         const char *c = color(WT_STATUS_HEADER, s);
 187
 188         status_printf_ln(s, c, _("Changes to be committed:"));
 189         if (!advice_status_hints)
 190                 return;
 191         if (s->whence != FROM_COMMIT)
 192                 ; /* NEEDSWORK: use "git reset --unresolve"??? */
 193         else if (!s->is_initial)
 194                 status_printf_ln(s, c, _("  (use \"git reset %s <file>...\" to unstage)"), s->reference);
 195         else
 196                 status_printf_ln(s, c, _("  (use \"git rm --cached <file>...\" to unstage)"));
 197         status_printf_ln(s, c, "");
 198 }
 199
 200 static void wt_status_print_dirty_header(struct wt_status *s,
 201                                          int has_deleted,
 202                                          int has_dirty_submodules)
 203 {
 204         const char *c = color(WT_STATUS_HEADER, s);
 205
 206         status_printf_ln(s, c, _("Changes not staged for commit:"));
 207         if (!advice_status_hints)
 208                 return;
 209         if (!has_deleted)
 210                 status_printf_ln(s, c, _("  (use \"git add <file>...\" to update what will be committed)"));
 211         else
 212                 status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" to update what will be committed)"));
 213         status_printf_ln(s, c, _("  (use \"git checkout -- <file>...\" to discard changes in working directory)"));
 214         if (has_dirty_submodules)
 215                 status_printf_ln(s, c, _("  (commit or discard the untracked or modified content in submodules)"));
 216         status_printf_ln(s, c, "");
 217 }
 218
 219 static void wt_status_print_other_header(struct wt_status *s,
 220                                          const char *what,
 221                                          const char *how)
 222 {
 223         const char *c = color(WT_STATUS_HEADER, s);
 224         status_printf_ln(s, c, "%s:", what);
 225         if (!advice_status_hints)
 226                 return;
 227         status_printf_ln(s, c, _("  (use \"git %s <file>...\" to include in what will be committed)"), how);
 228         status_printf_ln(s, c, "");
 229 }
 230
 231 static void wt_status_print_trailer(struct wt_status *s)
 232 {
 233         status_printf_ln(s, color(WT_STATUS_HEADER, s), "");
 234 }
 235
 236 #define quote_path quote_path_relative
 237
 238 static void wt_status_print_unmerged_data(struct wt_status *s,
 239                                           struct string_list_item *it)
 240 {
 241         const char *c = color(WT_STATUS_UNMERGED, s);
 242         struct wt_status_change_data *d = it->util;
 243         struct strbuf onebuf = STRBUF_INIT;
 244         const char *one, *how = _("bug");
 245
 246         one = quote_path(it->string, -1, &onebuf, s->prefix);
 247         status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 248         switch (d->stagemask) {
 249         case 1: how = _("both deleted:"); break;
 250         case 2: how = _("added by us:"); break;
 251         case 3: how = _("deleted by them:"); break;
 252         case 4: how = _("added by them:"); break;
 253         case 5: how = _("deleted by us:"); break;
 254         case 6: how = _("both added:"); break;
 255         case 7: how = _("both modified:"); break;
 256         }
 257         status_printf_more(s, c, "%-20s%s\n", how, one);
 258         strbuf_release(&onebuf);
 259 }
 260
 261 static void wt_status_print_change_data(struct wt_status *s,
 262                                         int change_type,
 263                                         struct string_list_item *it)
 264 {
 265         struct wt_status_change_data *d = it->util;
 266         const char *c = color(change_type, s);
 267         int status = status;
 268         char *one_name;
 269         char *two_name;
 270         const char *one, *two;
 271         struct strbuf onebuf = STRBUF_INIT, twobuf = STRBUF_INIT;
 272         struct strbuf extra = STRBUF_INIT;
 273
 274         one_name = two_name = it->string;
 275         switch (change_type) {
 276         case WT_STATUS_UPDATED:
 277                 status = d->index_status;
 278                 if (d->head_path)
 279                         one_name = d->head_path;
 280                 break;
 281         case WT_STATUS_CHANGED:
 282                 if (d->new_submodule_commits || d->dirty_submodule) {
 283                         strbuf_addstr(&extra, " (");
 284                         if (d->new_submodule_commits)
 285                                 strbuf_addf(&extra, _("new commits, "));
 286                         if (d->dirty_submodule & DIRTY_SUBMODULE_MODIFIED)
 287                                 strbuf_addf(&extra, _("modified content, "));
 288                         if (d->dirty_submodule & DIRTY_SUBMODULE_UNTRACKED)
 289                                 strbuf_addf(&extra, _("untracked content, "));
 290                         strbuf_setlen(&extra, extra.len - 2);
 291                         strbuf_addch(&extra, ')');
 292                 }
 293                 status = d->worktree_status;
 294                 break;
 295         }
 296
 297         one = quote_path(one_name, -1, &onebuf, s->prefix);
 298         two = quote_path(two_name, -1, &twobuf, s->prefix);
 299
 300         status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 301         switch (status) {
 302         case DIFF_STATUS_ADDED:
 303                 status_printf_more(s, c, _("new file:   %s"), one);
 304                 break;
 305         case DIFF_STATUS_COPIED:
 306                 status_printf_more(s, c, _("copied:     %s -> %s"), one, two);
 307                 break;
 308         case DIFF_STATUS_DELETED:
 309                 status_printf_more(s, c, _("deleted:    %s"), one);
 310                 break;
 311         case DIFF_STATUS_MODIFIED:
 312                 status_printf_more(s, c, _("modified:   %s"), one);
 313                 break;
 314         case DIFF_STATUS_RENAMED:
 315                 status_printf_more(s, c, _("renamed:    %s -> %s"), one, two);
 316                 break;
 317         case DIFF_STATUS_TYPE_CHANGED:
 318                 status_printf_more(s, c, _("typechange: %s"), one);
 319                 break;
 320         case DIFF_STATUS_UNKNOWN:
 321                 status_printf_more(s, c, _("unknown:    %s"), one);
 322                 break;
 323         case DIFF_STATUS_UNMERGED:
 324                 status_printf_more(s, c, _("unmerged:   %s"), one);
 325                 break;
 326         default:
 327                 die(_("bug: unhandled diff status %c"), status);
 328         }
 329         if (extra.len) {
 330                 status_printf_more(s, color(WT_STATUS_HEADER, s), "%s", extra.buf);
 331                 strbuf_release(&extra);
 332         }
 333         status_printf_more(s, GIT_COLOR_NORMAL, "\n");
 334         strbuf_release(&onebuf);
 335         strbuf_release(&twobuf);
 336 }
 337
 338 static void wt_status_collect_changed_cb(struct diff_queue_struct *q,
 339                                          struct diff_options *options,
 340                                          void *data)
 341 {
 342         struct wt_status *s = data;
 343         int i;
 344
 345         if (!q->nr)
 346                 return;
 347         s->workdir_dirty = 1;
 348         for (i = 0; i < q->nr; i++) {
 349                 struct diff_filepair *p;
 350                 struct string_list_item *it;
 351                 struct wt_status_change_data *d;
 352
 353                 p = q->queue[i];
 354                 it = string_list_insert(&s->change, p->one->path);
 355                 d = it->util;
 356                 if (!d) {
 357                         d = xcalloc(1, sizeof(*d));
 358                         it->util = d;
 359                 }
 360                 if (!d->worktree_status)
 361                         d->worktree_status = p->status;
 362                 d->dirty_submodule = p->two->dirty_submodule;
 363                 if (S_ISGITLINK(p->two->mode))
 364                         d->new_submodule_commits = !!hashcmp(p->one->sha1, p->two->sha1);
 365         }
 366 }
 367
 368 static int unmerged_mask(const char *path)
 369 {
 370         int pos, mask;
 371         struct cache_entry *ce;
 372
 373         pos = cache_name_pos(path, strlen(path));
 374         if (0 <= pos)
 375                 return 0;
 376
 377         mask = 0;
 378         pos = -pos-1;
 379         while (pos < active_nr) {
 380                 ce = active_cache[pos++];
 381                 if (strcmp(ce->name, path) || !ce_stage(ce))
 382                         break;
 383                 mask |= (1 << (ce_stage(ce) - 1));
 384         }
 385         return mask;
 386 }
 387
 388 static void wt_status_collect_updated_cb(struct diff_queue_struct *q,
 389                                          struct diff_options *options,
 390                                          void *data)
 391 {
 392         struct wt_status *s = data;
 393         int i;
 394
 395         for (i = 0; i < q->nr; i++) {
 396                 struct diff_filepair *p;
 397                 struct string_list_item *it;
 398                 struct wt_status_change_data *d;
 399
 400                 p = q->queue[i];
 401                 it = string_list_insert(&s->change, p->two->path);
 402                 d = it->util;
 403                 if (!d) {
 404                         d = xcalloc(1, sizeof(*d));
 405                         it->util = d;
 406                 }
 407                 if (!d->index_status)
 408                         d->index_status = p->status;
 409                 switch (p->status) {
 410                 case DIFF_STATUS_COPIED:
 411                 case DIFF_STATUS_RENAMED:
 412                         d->head_path = xstrdup(p->one->path);
 413                         break;
 414                 case DIFF_STATUS_UNMERGED:
 415                         d->stagemask = unmerged_mask(p->two->path);
 416                         break;
 417                 }
 418         }
 419 }
 420
 421 static void wt_status_collect_changes_worktree(struct wt_status *s)
 422 {
 423         struct rev_info rev;
 424
 425         init_revisions(&rev, NULL);
 426         setup_revisions(0, NULL, &rev, NULL);
 427         rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 428         DIFF_OPT_SET(&rev.diffopt, DIRTY_SUBMODULES);
 429         if (!s->show_untracked_files)
 430                 DIFF_OPT_SET(&rev.diffopt, IGNORE_UNTRACKED_IN_SUBMODULES);
 431         if (s->ignore_submodule_arg) {
 432                 DIFF_OPT_SET(&rev.diffopt, OVERRIDE_SUBMODULE_CONFIG);
 433                 handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
 434         }
 435         rev.diffopt.format_callback = wt_status_collect_changed_cb;
 436         rev.diffopt.format_callback_data = s;
 437         init_pathspec(&rev.prune_data, s->pathspec);
 438         run_diff_files(&rev, 0);
 439 }
 440
 441 static void wt_status_collect_changes_index(struct wt_status *s)
 442 {
 443         struct rev_info rev;
 444         struct setup_revision_opt opt;
 445
 446         init_revisions(&rev, NULL);
 447         memset(&opt, 0, sizeof(opt));
 448         opt.def = s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference;
 449         setup_revisions(0, NULL, &rev, &opt);
 450
 451         if (s->ignore_submodule_arg) {
 452                 DIFF_OPT_SET(&rev.diffopt, OVERRIDE_SUBMODULE_CONFIG);
 453                 handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
 454         }
 455
 456         rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 457         rev.diffopt.format_callback = wt_status_collect_updated_cb;
 458         rev.diffopt.format_callback_data = s;
 459         rev.diffopt.detect_rename = 1;
 460         rev.diffopt.rename_limit = 200;
 461         rev.diffopt.break_opt = 0;
 462         init_pathspec(&rev.prune_data, s->pathspec);
 463         run_diff_index(&rev, 1);
 464 }
 465
 466 static void wt_status_collect_changes_initial(struct wt_status *s)
 467 {
 468         struct pathspec pathspec;
 469         int i;
 470
 471         init_pathspec(&pathspec, s->pathspec);
 472         for (i = 0; i < active_nr; i++) {
 473                 struct string_list_item *it;
 474                 struct wt_status_change_data *d;
 475                 struct cache_entry *ce = active_cache[i];
 476
 477                 if (!ce_path_match(ce, &pathspec))
 478                         continue;
 479                 it = string_list_insert(&s->change, ce->name);
 480                 d = it->util;
 481                 if (!d) {
 482                         d = xcalloc(1, sizeof(*d));
 483                         it->util = d;
 484                 }
 485                 if (ce_stage(ce)) {
 486                         d->index_status = DIFF_STATUS_UNMERGED;
 487                         d->stagemask |= (1 << (ce_stage(ce) - 1));
 488                 }
 489                 else
 490                         d->index_status = DIFF_STATUS_ADDED;
 491         }
 492         free_pathspec(&pathspec);
 493 }
 494
 495 static void wt_status_collect_untracked(struct wt_status *s)
 496 {
 497         int i;
 498         struct dir_struct dir;
 499
 500         if (!s->show_untracked_files)
 501                 return;
 502         memset(&dir, 0, sizeof(dir));
 503         if (s->show_untracked_files != SHOW_ALL_UNTRACKED_FILES)
 504                 dir.flags |=
 505                         DIR_SHOW_OTHER_DIRECTORIES | DIR_HIDE_EMPTY_DIRECTORIES;
 506         setup_standard_excludes(&dir);
 507
 508         fill_directory(&dir, s->pathspec);
 509         for (i = 0; i < dir.nr; i++) {
 510                 struct dir_entry *ent = dir.entries[i];
 511                 if (cache_name_is_other(ent->name, ent->len) &&
 512                     match_pathspec(s->pathspec, ent->name, ent->len, 0, NULL))
 513                         string_list_insert(&s->untracked, ent->name);
 514                 free(ent);
 515         }
 516
 517         if (s->show_ignored_files) {
 518                 dir.nr = 0;
 519                 dir.flags = DIR_SHOW_IGNORED | DIR_SHOW_OTHER_DIRECTORIES;
 520                 fill_directory(&dir, s->pathspec);
 521                 for (i = 0; i < dir.nr; i++) {
 522                         struct dir_entry *ent = dir.entries[i];
 523                         if (cache_name_is_other(ent->name, ent->len) &&
 524                             match_pathspec(s->pathspec, ent->name, ent->len, 0, NULL))
 525                                 string_list_insert(&s->ignored, ent->name);
 526                         free(ent);
 527                 }
 528         }
 529
 530         free(dir.entries);
 531 }
 532
 533 void wt_status_collect(struct wt_status *s)
 534 {
 535         wt_status_collect_changes_worktree(s);
 536
 537         if (s->is_initial)
 538                 wt_status_collect_changes_initial(s);
 539         else
 540                 wt_status_collect_changes_index(s);
 541         wt_status_collect_untracked(s);
 542 }
 543
 544 static void wt_status_print_unmerged(struct wt_status *s)
 545 {
 546         int shown_header = 0;
 547         int i;
 548
 549         for (i = 0; i < s->change.nr; i++) {
 550                 struct wt_status_change_data *d;
 551                 struct string_list_item *it;
 552                 it = &(s->change.items[i]);
 553                 d = it->util;
 554                 if (!d->stagemask)
 555                         continue;
 556                 if (!shown_header) {
 557                         wt_status_print_unmerged_header(s);
 558                         shown_header = 1;
 559                 }
 560                 wt_status_print_unmerged_data(s, it);
 561         }
 562         if (shown_header)
 563                 wt_status_print_trailer(s);
 564
 565 }
 566
 567 static void wt_status_print_updated(struct wt_status *s)
 568 {
 569         int shown_header = 0;
 570         int i;
 571
 572         for (i = 0; i < s->change.nr; i++) {
 573                 struct wt_status_change_data *d;
 574                 struct string_list_item *it;
 575                 it = &(s->change.items[i]);
 576                 d = it->util;
 577                 if (!d->index_status ||
 578                     d->index_status == DIFF_STATUS_UNMERGED)
 579                         continue;
 580                 if (!shown_header) {
 581                         wt_status_print_cached_header(s);
 582                         s->commitable = 1;
 583                         shown_header = 1;
 584                 }
 585                 wt_status_print_change_data(s, WT_STATUS_UPDATED, it);
 586         }
 587         if (shown_header)
 588                 wt_status_print_trailer(s);
 589 }
 590
 591 /*
 592  * -1 : has delete
 593  *  0 : no change
 594  *  1 : some change but no delete
 595  */
 596 static int wt_status_check_worktree_changes(struct wt_status *s,
 597                                              int *dirty_submodules)
 598 {
 599         int i;
 600         int changes = 0;
 601
 602         *dirty_submodules = 0;
 603
 604         for (i = 0; i < s->change.nr; i++) {
 605                 struct wt_status_change_data *d;
 606                 d = s->change.items[i].util;
 607                 if (!d->worktree_status ||
 608                     d->worktree_status == DIFF_STATUS_UNMERGED)
 609                         continue;
 610                 if (!changes)
 611                         changes = 1;
 612                 if (d->dirty_submodule)
 613                         *dirty_submodules = 1;
 614                 if (d->worktree_status == DIFF_STATUS_DELETED)
 615                         changes = -1;
 616         }
 617         return changes;
 618 }
 619
 620 static void wt_status_print_changed(struct wt_status *s)
 621 {
 622         int i, dirty_submodules;
 623         int worktree_changes = wt_status_check_worktree_changes(s, &dirty_submodules);
 624
 625         if (!worktree_changes)
 626                 return;
 627
 628         wt_status_print_dirty_header(s, worktree_changes < 0, dirty_submodules);
 629
 630         for (i = 0; i < s->change.nr; i++) {
 631                 struct wt_status_change_data *d;
 632                 struct string_list_item *it;
 633                 it = &(s->change.items[i]);
 634                 d = it->util;
 635                 if (!d->worktree_status ||
 636                     d->worktree_status == DIFF_STATUS_UNMERGED)
 637                         continue;
 638                 wt_status_print_change_data(s, WT_STATUS_CHANGED, it);
 639         }
 640         wt_status_print_trailer(s);
 641 }
 642
 643 static void wt_status_print_submodule_summary(struct wt_status *s, int uncommitted)
 644 {
 645         struct child_process sm_summary;
 646         char summary_limit[64];
 647         char index[PATH_MAX];
 648         const char *env[] = { NULL, NULL };
 649         const char *argv[8];
 650
 651         env[0] =        index;
 652         argv[0] =       "submodule";
 653         argv[1] =       "summary";
 654         argv[2] =       uncommitted ? "--files" : "--cached";
 655         argv[3] =       "--for-status";
 656         argv[4] =       "--summary-limit";
 657         argv[5] =       summary_limit;
 658         argv[6] =       uncommitted ? NULL : (s->amend ? "HEAD^" : "HEAD");
 659         argv[7] =       NULL;
 660
 661         sprintf(summary_limit, "%d", s->submodule_summary);
 662         snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", s->index_file);
 663
 664         memset(&sm_summary, 0, sizeof(sm_summary));
 665         sm_summary.argv = argv;
 666         sm_summary.env = env;
 667         sm_summary.git_cmd = 1;
 668         sm_summary.no_stdin = 1;
 669         fflush(s->fp);
 670         sm_summary.out = dup(fileno(s->fp));    /* run_command closes it */
 671         run_command(&sm_summary);
 672 }
 673
 674 static void wt_status_print_other(struct wt_status *s,
 675                                   struct string_list *l,
 676                                   const char *what,
 677                                   const char *how)
 678 {
 679         int i;
 680         struct strbuf buf = STRBUF_INIT;
 681         static struct string_list output = STRING_LIST_INIT_DUP;
 682         struct column_options copts;
 683
 684         if (!l->nr)
 685                 return;
 686
 687         wt_status_print_other_header(s, what, how);
 688
 689         for (i = 0; i < l->nr; i++) {
 690                 struct string_list_item *it;
 691                 const char *path;
 692                 it = &(l->items[i]);
 693                 path = quote_path(it->string, strlen(it->string),
 694                                   &buf, s->prefix);
 695                 if (column_active(s->colopts)) {
 696                         string_list_append(&output, path);
 697                         continue;
 698                 }
 699                 status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 700                 status_printf_more(s, color(WT_STATUS_UNTRACKED, s),
 701                                    "%s\n", path);
 702         }
 703
 704         strbuf_release(&buf);
 705         if (!column_active(s->colopts))
 706                 return;
 707
 708         strbuf_addf(&buf, "%s#\t%s",
 709                     color(WT_STATUS_HEADER, s),
 710                     color(WT_STATUS_UNTRACKED, s));
 711         memset(&copts, 0, sizeof(copts));
 712         copts.padding = 1;
 713         copts.indent = buf.buf;
 714         if (want_color(s->use_color))
 715                 copts.nl = GIT_COLOR_RESET "\n";
 716         print_columns(&output, s->colopts, &copts);
 717         string_list_clear(&output, 0);
 718         strbuf_release(&buf);
 719 }
 720
 721 static void wt_status_print_verbose(struct wt_status *s)
 722 {
 723         struct rev_info rev;
 724         struct setup_revision_opt opt;
 725
 726         init_revisions(&rev, NULL);
 727         DIFF_OPT_SET(&rev.diffopt, ALLOW_TEXTCONV);
 728
 729         memset(&opt, 0, sizeof(opt));
 730         opt.def = s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference;
 731         setup_revisions(0, NULL, &rev, &opt);
 732
 733         rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
 734         rev.diffopt.detect_rename = 1;
 735         rev.diffopt.file = s->fp;
 736         rev.diffopt.close_file = 0;
 737         /*
 738          * If we're not going to stdout, then we definitely don't
 739          * want color, since we are going to the commit message
 740          * file (and even the "auto" setting won't work, since it
 741          * will have checked isatty on stdout).
 742          */
 743         if (s->fp != stdout)
 744                 rev.diffopt.use_color = 0;
 745         run_diff_index(&rev, 1);
 746 }
 747
 748 static void wt_status_print_tracking(struct wt_status *s)
 749 {
 750         struct strbuf sb = STRBUF_INIT;
 751         const char *cp, *ep;
 752         struct branch *branch;
 753
 754         assert(s->branch && !s->is_initial);
 755         if (prefixcmp(s->branch, "refs/heads/"))
 756                 return;
 757         branch = branch_get(s->branch + 11);
 758         if (!format_tracking_info(branch, &sb))
 759                 return;
 760
 761         for (cp = sb.buf; (ep = strchr(cp, '\n')) != NULL; cp = ep + 1)
 762                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s),
 763                                  "# %.*s", (int)(ep - cp), cp);
 764         color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "#");
 765 }
 766
 767 static int has_unmerged(struct wt_status *s)
 768 {
 769         int i;
 770
 771         for (i = 0; i < s->change.nr; i++) {
 772                 struct wt_status_change_data *d;
 773                 d = s->change.items[i].util;
 774                 if (d->stagemask)
 775                         return 1;
 776         }
 777         return 0;
 778 }
 779
 780 static void show_merge_in_progress(struct wt_status *s,
 781                                 struct wt_status_state *state,
 782                                 const char *color)
 783 {
 784         if (has_unmerged(s)) {
 785                 status_printf_ln(s, color, _("You have unmerged paths."));
 786                 if (advice_status_hints)
 787                         status_printf_ln(s, color,
 788                                 _("  (fix conflicts and run \"git commit\")"));
 789         } else {
 790                 status_printf_ln(s, color,
 791                         _("All conflicts fixed but you are still merging."));
 792                 if (advice_status_hints)
 793                         status_printf_ln(s, color,
 794                                 _("  (use \"git commit\" to conclude merge)"));
 795         }
 796         wt_status_print_trailer(s);
 797 }
 798
 799 static void show_am_in_progress(struct wt_status *s,
 800                                 struct wt_status_state *state,
 801                                 const char *color)
 802 {
 803         status_printf_ln(s, color,
 804                 _("You are in the middle of an am session."));
 805         if (state->am_empty_patch)
 806                 status_printf_ln(s, color,
 807                         _("The current patch is empty."));
 808         if (advice_status_hints) {
 809                 if (!state->am_empty_patch)
 810                         status_printf_ln(s, color,
 811                                 _("  (fix conflicts and then run \"git am --resolved\")"));
 812                 status_printf_ln(s, color,
 813                         _("  (use \"git am --skip\" to skip this patch)"));
 814                 status_printf_ln(s, color,
 815                         _("  (use \"git am --abort\" to restore the original branch)"));
 816         }
 817         wt_status_print_trailer(s);
 818 }
 819
 820 static char *read_line_from_git_path(const char *filename)
 821 {
 822         struct strbuf buf = STRBUF_INIT;
 823         FILE *fp = fopen(git_path("%s", filename), "r");
 824         if (!fp) {
 825                 strbuf_release(&buf);
 826                 return NULL;
 827         }
 828         strbuf_getline(&buf, fp, '\n');
 829         if (!fclose(fp)) {
 830                 return strbuf_detach(&buf, NULL);
 831         } else {
 832                 strbuf_release(&buf);
 833                 return NULL;
 834         }
 835 }
 836
 837 static int split_commit_in_progress(struct wt_status *s)
 838 {
 839         int split_in_progress = 0;
 840         char *head = read_line_from_git_path("HEAD");
 841         char *orig_head = read_line_from_git_path("ORIG_HEAD");
 842         char *rebase_amend = read_line_from_git_path("rebase-merge/amend");
 843         char *rebase_orig_head = read_line_from_git_path("rebase-merge/orig-head");
 844
 845         if (!head || !orig_head || !rebase_amend || !rebase_orig_head ||
 846             !s->branch || strcmp(s->branch, "HEAD"))
 847                 return split_in_progress;
 848
 849         if (!strcmp(rebase_amend, rebase_orig_head)) {
 850                 if (strcmp(head, rebase_amend))
 851                         split_in_progress = 1;
 852         } else if (strcmp(orig_head, rebase_orig_head)) {
 853                 split_in_progress = 1;
 854         }
 855
 856         if (!s->amend && !s->nowarn && !s->workdir_dirty)
 857                 split_in_progress = 0;
 858
 859         free(head);
 860         free(orig_head);
 861         free(rebase_amend);
 862         free(rebase_orig_head);
 863         return split_in_progress;
 864 }
 865
 866 static void show_rebase_in_progress(struct wt_status *s,
 867                                 struct wt_status_state *state,
 868                                 const char *color)
 869 {
 870         struct stat st;
 871
 872         if (has_unmerged(s)) {
 873                 status_printf_ln(s, color, _("You are currently rebasing."));
 874                 if (advice_status_hints) {
 875                         status_printf_ln(s, color,
 876                                 _("  (fix conflicts and then run \"git rebase --continue\")"));
 877                         status_printf_ln(s, color,
 878                                 _("  (use \"git rebase --skip\" to skip this patch)"));
 879                         status_printf_ln(s, color,
 880                                 _("  (use \"git rebase --abort\" to check out the original branch)"));
 881                 }
 882         } else if (state->rebase_in_progress || !stat(git_path("MERGE_MSG"), &st)) {
 883                 status_printf_ln(s, color, _("You are currently rebasing."));
 884                 if (advice_status_hints)
 885                         status_printf_ln(s, color,
 886                                 _("  (all conflicts fixed: run \"git rebase --continue\")"));
 887         } else if (split_commit_in_progress(s)) {
 888                 status_printf_ln(s, color, _("You are currently splitting a commit during a rebase."));
 889                 if (advice_status_hints)
 890                         status_printf_ln(s, color,
 891                                 _("  (Once your working directory is clean, run \"git rebase --continue\")"));
 892         } else {
 893                 status_printf_ln(s, color, _("You are currently editing a commit during a rebase."));
 894                 if (advice_status_hints && !s->amend) {
 895                         status_printf_ln(s, color,
 896                                 _("  (use \"git commit --amend\" to amend the current commit)"));
 897                         status_printf_ln(s, color,
 898                                 _("  (use \"git rebase --continue\" once you are satisfied with your changes)"));
 899                 }
 900         }
 901         wt_status_print_trailer(s);
 902 }
 903
 904 static void show_cherry_pick_in_progress(struct wt_status *s,
 905                                         struct wt_status_state *state,
 906                                         const char *color)
 907 {
 908         status_printf_ln(s, color, _("You are currently cherry-picking."));
 909         if (advice_status_hints) {
 910                 if (has_unmerged(s))
 911                         status_printf_ln(s, color,
 912                                 _("  (fix conflicts and run \"git commit\")"));
 913                 else
 914                         status_printf_ln(s, color,
 915                                 _("  (all conflicts fixed: run \"git commit\")"));
 916         }
 917         wt_status_print_trailer(s);
 918 }
 919
 920 static void show_bisect_in_progress(struct wt_status *s,
 921                                 struct wt_status_state *state,
 922                                 const char *color)
 923 {
 924         status_printf_ln(s, color, _("You are currently bisecting."));
 925         if (advice_status_hints)
 926                 status_printf_ln(s, color,
 927                         _("  (use \"git bisect reset\" to get back to the original branch)"));
 928         wt_status_print_trailer(s);
 929 }
 930
 931 static void wt_status_print_state(struct wt_status *s)
 932 {
 933         const char *state_color = color(WT_STATUS_HEADER, s);
 934         struct wt_status_state state;
 935         struct stat st;
 936
 937         memset(&state, 0, sizeof(state));
 938
 939         if (!stat(git_path("MERGE_HEAD"), &st)) {
 940                 state.merge_in_progress = 1;
 941         } else if (!stat(git_path("rebase-apply"), &st)) {
 942                 if (!stat(git_path("rebase-apply/applying"), &st)) {
 943                         state.am_in_progress = 1;
 944                         if (!stat(git_path("rebase-apply/patch"), &st) && !st.st_size)
 945                                 state.am_empty_patch = 1;
 946                 } else {
 947                         state.rebase_in_progress = 1;
 948                 }
 949         } else if (!stat(git_path("rebase-merge"), &st)) {
 950                 if (!stat(git_path("rebase-merge/interactive"), &st))
 951                         state.rebase_interactive_in_progress = 1;
 952                 else
 953                         state.rebase_in_progress = 1;
 954         } else if (!stat(git_path("CHERRY_PICK_HEAD"), &st)) {
 955                 state.cherry_pick_in_progress = 1;
 956         }
 957         if (!stat(git_path("BISECT_LOG"), &st))
 958                 state.bisect_in_progress = 1;
 959
 960         if (state.merge_in_progress)
 961                 show_merge_in_progress(s, &state, state_color);
 962         else if (state.am_in_progress)
 963                 show_am_in_progress(s, &state, state_color);
 964         else if (state.rebase_in_progress || state.rebase_interactive_in_progress)
 965                 show_rebase_in_progress(s, &state, state_color);
 966         else if (state.cherry_pick_in_progress)
 967                 show_cherry_pick_in_progress(s, &state, state_color);
 968         if (state.bisect_in_progress)
 969                 show_bisect_in_progress(s, &state, state_color);
 970 }
 971
 972 void wt_status_print(struct wt_status *s)
 973 {
 974         const char *branch_color = color(WT_STATUS_ONBRANCH, s);
 975         const char *branch_status_color = color(WT_STATUS_HEADER, s);
 976
 977         if (s->branch) {
 978                 const char *on_what = _("On branch ");
 979                 const char *branch_name = s->branch;
 980                 if (!prefixcmp(branch_name, "refs/heads/"))
 981                         branch_name += 11;
 982                 else if (!strcmp(branch_name, "HEAD")) {
 983                         branch_name = "";
 984                         branch_status_color = color(WT_STATUS_NOBRANCH, s);
 985                         on_what = _("Not currently on any branch.");
 986                 }
 987                 status_printf(s, color(WT_STATUS_HEADER, s), "");
 988                 status_printf_more(s, branch_status_color, "%s", on_what);
 989                 status_printf_more(s, branch_color, "%s\n", branch_name);
 990                 if (!s->is_initial)
 991                         wt_status_print_tracking(s);
 992         }
 993
 994         wt_status_print_state(s);
 995         if (s->is_initial) {
 996                 status_printf_ln(s, color(WT_STATUS_HEADER, s), "");
 997                 status_printf_ln(s, color(WT_STATUS_HEADER, s), _("Initial commit"));
 998                 status_printf_ln(s, color(WT_STATUS_HEADER, s), "");
 999         }
1000
1001         wt_status_print_updated(s);
1002         wt_status_print_unmerged(s);
1003         wt_status_print_changed(s);
1004         if (s->submodule_summary &&
1005             (!s->ignore_submodule_arg ||
1006              strcmp(s->ignore_submodule_arg, "all"))) {
1007                 wt_status_print_submodule_summary(s, 0);  /* staged */
1008                 wt_status_print_submodule_summary(s, 1);  /* unstaged */
1009         }
1010         if (s->show_untracked_files) {
1011                 wt_status_print_other(s, &s->untracked, _("Untracked files"), "add");
1012                 if (s->show_ignored_files)
1013                         wt_status_print_other(s, &s->ignored, _("Ignored files"), "add -f");
1014         } else if (s->commitable)
1015                 status_printf_ln(s, GIT_COLOR_NORMAL, _("Untracked files not listed%s"),
1016                         advice_status_hints
1017                         ? _(" (use -u option to show untracked files)") : "");
1018
1019         if (s->verbose)
1020                 wt_status_print_verbose(s);
1021         if (!s->commitable) {
1022                 if (s->amend)
1023                         status_printf_ln(s, GIT_COLOR_NORMAL, _("No changes"));
1024                 else if (s->nowarn)
1025                         ; /* nothing */
1026                 else if (s->workdir_dirty) {
1027                         if (advice_status_hints)
1028                                 printf(_("no changes added to commit "
1029                                          "(use \"git add\" and/or \"git commit -a\")\n"));
1030                         else
1031                                 printf(_("no changes added to commit\n"));
1032                 } else if (s->untracked.nr) {
1033                         if (advice_status_hints)
1034                                 printf(_("nothing added to commit but untracked files "
1035                                          "present (use \"git add\" to track)\n"));
1036                         else
1037                                 printf(_("nothing added to commit but untracked files present\n"));
1038                 } else if (s->is_initial) {
1039                         if (advice_status_hints)
1040                                 printf(_("nothing to commit (create/copy files "
1041                                          "and use \"git add\" to track)\n"));
1042                         else
1043                                 printf(_("nothing to commit\n"));
1044                 } else if (!s->show_untracked_files) {
1045                         if (advice_status_hints)
1046                                 printf(_("nothing to commit (use -u to show untracked files)\n"));
1047                         else
1048                                 printf(_("nothing to commit\n"));
1049                 } else
1050                         printf(_("nothing to commit, working directory clean\n"));
1051         }
1052 }
1053
1054 static void wt_shortstatus_unmerged(struct string_list_item *it,
1055                            struct wt_status *s)
1056 {
1057         struct wt_status_change_data *d = it->util;
1058         const char *how = "??";
1059
1060         switch (d->stagemask) {
1061         case 1: how = "DD"; break; /* both deleted */
1062         case 2: how = "AU"; break; /* added by us */
1063         case 3: how = "UD"; break; /* deleted by them */
1064         case 4: how = "UA"; break; /* added by them */
1065         case 5: how = "DU"; break; /* deleted by us */
1066         case 6: how = "AA"; break; /* both added */
1067         case 7: how = "UU"; break; /* both modified */
1068         }
1069         color_fprintf(s->fp, color(WT_STATUS_UNMERGED, s), "%s", how);
1070         if (s->null_termination) {
1071                 fprintf(stdout, " %s%c", it->string, 0);
1072         } else {
1073                 struct strbuf onebuf = STRBUF_INIT;
1074                 const char *one;
1075                 one = quote_path(it->string, -1, &onebuf, s->prefix);
1076                 printf(" %s\n", one);
1077                 strbuf_release(&onebuf);
1078         }
1079 }
1080
1081 static void wt_shortstatus_status(struct string_list_item *it,
1082                          struct wt_status *s)
1083 {
1084         struct wt_status_change_data *d = it->util;
1085
1086         if (d->index_status)
1087                 color_fprintf(s->fp, color(WT_STATUS_UPDATED, s), "%c", d->index_status);
1088         else
1089                 putchar(' ');
1090         if (d->worktree_status)
1091                 color_fprintf(s->fp, color(WT_STATUS_CHANGED, s), "%c", d->worktree_status);
1092         else
1093                 putchar(' ');
1094         putchar(' ');
1095         if (s->null_termination) {
1096                 fprintf(stdout, "%s%c", it->string, 0);
1097                 if (d->head_path)
1098                         fprintf(stdout, "%s%c", d->head_path, 0);
1099         } else {
1100                 struct strbuf onebuf = STRBUF_INIT;
1101                 const char *one;
1102                 if (d->head_path) {
1103                         one = quote_path(d->head_path, -1, &onebuf, s->prefix);
1104                         if (*one != '"' && strchr(one, ' ') != NULL) {
1105                                 putchar('"');
1106                                 strbuf_addch(&onebuf, '"');
1107                                 one = onebuf.buf;
1108                         }
1109                         printf("%s -> ", one);
1110                         strbuf_release(&onebuf);
1111                 }
1112                 one = quote_path(it->string, -1, &onebuf, s->prefix);
1113                 if (*one != '"' && strchr(one, ' ') != NULL) {
1114                         putchar('"');
1115                         strbuf_addch(&onebuf, '"');
1116                         one = onebuf.buf;
1117                 }
1118                 printf("%s\n", one);
1119                 strbuf_release(&onebuf);
1120         }
1121 }
1122
1123 static void wt_shortstatus_other(struct string_list_item *it,
1124                                  struct wt_status *s, const char *sign)
1125 {
1126         if (s->null_termination) {
1127                 fprintf(stdout, "%s %s%c", sign, it->string, 0);
1128         } else {
1129                 struct strbuf onebuf = STRBUF_INIT;
1130                 const char *one;
1131                 one = quote_path(it->string, -1, &onebuf, s->prefix);
1132                 color_fprintf(s->fp, color(WT_STATUS_UNTRACKED, s), "%s", sign);
1133                 printf(" %s\n", one);
1134                 strbuf_release(&onebuf);
1135         }
1136 }
1137
1138 static void wt_shortstatus_print_tracking(struct wt_status *s)
1139 {
1140         struct branch *branch;
1141         const char *header_color = color(WT_STATUS_HEADER, s);
1142         const char *branch_color_local = color(WT_STATUS_LOCAL_BRANCH, s);
1143         const char *branch_color_remote = color(WT_STATUS_REMOTE_BRANCH, s);
1144
1145         const char *base;
1146         const char *branch_name;
1147         int num_ours, num_theirs;
1148
1149         color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "## ");
1150
1151         if (!s->branch)
1152                 return;
1153         branch_name = s->branch;
1154
1155         if (!prefixcmp(branch_name, "refs/heads/"))
1156                 branch_name += 11;
1157         else if (!strcmp(branch_name, "HEAD")) {
1158                 branch_name = _("HEAD (no branch)");
1159                 branch_color_local = color(WT_STATUS_NOBRANCH, s);
1160         }
1161
1162         branch = branch_get(s->branch + 11);
1163         if (s->is_initial)
1164                 color_fprintf(s->fp, header_color, _("Initial commit on "));
1165         if (!stat_tracking_info(branch, &num_ours, &num_theirs)) {
1166                 color_fprintf(s->fp, branch_color_local, "%s", branch_name);
1167                 fputc(s->null_termination ? '\0' : '\n', s->fp);
1168                 return;
1169         }
1170
1171         base = branch->merge[0]->dst;
1172         base = shorten_unambiguous_ref(base, 0);
1173         color_fprintf(s->fp, branch_color_local, "%s", branch_name);
1174         color_fprintf(s->fp, header_color, "...");
1175         color_fprintf(s->fp, branch_color_remote, "%s", base);
1176
1177         color_fprintf(s->fp, header_color, " [");
1178         if (!num_ours) {
1179                 color_fprintf(s->fp, header_color, _("behind "));
1180                 color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
1181         } else if (!num_theirs) {
1182                 color_fprintf(s->fp, header_color, _("ahead "));
1183                 color_fprintf(s->fp, branch_color_local, "%d", num_ours);
1184         } else {
1185                 color_fprintf(s->fp, header_color, _("ahead "));
1186                 color_fprintf(s->fp, branch_color_local, "%d", num_ours);
1187                 color_fprintf(s->fp, header_color, _(", behind "));
1188                 color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
1189         }
1190
1191         color_fprintf(s->fp, header_color, "]");
1192         fputc(s->null_termination ? '\0' : '\n', s->fp);
1193 }
1194
1195 void wt_shortstatus_print(struct wt_status *s)
1196 {
1197         int i;
1198
1199         if (s->show_branch)
1200                 wt_shortstatus_print_tracking(s);
1201
1202         for (i = 0; i < s->change.nr; i++) {
1203                 struct wt_status_change_data *d;
1204                 struct string_list_item *it;
1205
1206                 it = &(s->change.items[i]);
1207                 d = it->util;
1208                 if (d->stagemask)
1209                         wt_shortstatus_unmerged(it, s);
1210                 else
1211                         wt_shortstatus_status(it, s);
1212         }
1213         for (i = 0; i < s->untracked.nr; i++) {
1214                 struct string_list_item *it;
1215
1216                 it = &(s->untracked.items[i]);
1217                 wt_shortstatus_other(it, s, "??");
1218         }
1219         for (i = 0; i < s->ignored.nr; i++) {
1220                 struct string_list_item *it;
1221
1222                 it = &(s->ignored.items[i]);
1223                 wt_shortstatus_other(it, s, "!!");
1224         }
1225 }
1226
1227 void wt_porcelain_print(struct wt_status *s)
1228 {
1229         s->use_color = 0;
1230         s->relative_paths = 0;
1231         s->prefix = NULL;
1232         wt_shortstatus_print(s);
1233 }