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
  15 static char default_wt_status_colors[][COLOR_MAXLEN] = {
  16         GIT_COLOR_NORMAL, /* WT_STATUS_HEADER */
  17         GIT_COLOR_GREEN,  /* WT_STATUS_UPDATED */
  18         GIT_COLOR_RED,    /* WT_STATUS_CHANGED */
  19         GIT_COLOR_RED,    /* WT_STATUS_UNTRACKED */
  20         GIT_COLOR_RED,    /* WT_STATUS_NOBRANCH */
  21         GIT_COLOR_RED,    /* WT_STATUS_UNMERGED */
  22         GIT_COLOR_GREEN,  /* WT_STATUS_LOCAL_BRANCH */
  23         GIT_COLOR_RED,    /* WT_STATUS_REMOTE_BRANCH */
  24         GIT_COLOR_NIL,    /* WT_STATUS_ONBRANCH */
  25 };
  26
  27 static const char *color(int slot, struct wt_status *s)
  28 {
  29         const char *c = s->use_color > 0 ? s->color_palette[slot] : "";
  30         if (slot == WT_STATUS_ONBRANCH && color_is_nil(c))
  31                 c = s->color_palette[WT_STATUS_HEADER];
  32         return c;
  33 }
  34
  35 static void status_vprintf(struct wt_status *s, int at_bol, const char *color,
  36                 const char *fmt, va_list ap, const char *trail)
  37 {
  38         struct strbuf sb = STRBUF_INIT;
  39         struct strbuf linebuf = STRBUF_INIT;
  40         const char *line, *eol;
  41
  42         strbuf_vaddf(&sb, fmt, ap);
  43         if (!sb.len) {
  44                 strbuf_addch(&sb, '#');
  45                 if (!trail)
  46                         strbuf_addch(&sb, ' ');
  47                 color_print_strbuf(s->fp, color, &sb);
  48                 if (trail)
  49                         fprintf(s->fp, "%s", trail);
  50                 strbuf_release(&sb);
  51                 return;
  52         }
  53         for (line = sb.buf; *line; line = eol + 1) {
  54                 eol = strchr(line, '\n');
  55
  56                 strbuf_reset(&linebuf);
  57                 if (at_bol) {
  58                         strbuf_addch(&linebuf, '#');
  59                         if (*line != '\n' && *line != '\t')
  60                                 strbuf_addch(&linebuf, ' ');
  61                 }
  62                 if (eol)
  63                         strbuf_add(&linebuf, line, eol - line);
  64                 else
  65                         strbuf_addstr(&linebuf, line);
  66                 color_print_strbuf(s->fp, color, &linebuf);
  67                 if (eol)
  68                         fprintf(s->fp, "\n");
  69                 else
  70                         break;
  71                 at_bol = 1;
  72         }
  73         if (trail)
  74                 fprintf(s->fp, "%s", trail);
  75         strbuf_release(&linebuf);
  76         strbuf_release(&sb);
  77 }
  78
  79 void status_printf_ln(struct wt_status *s, const char *color,
  80                         const char *fmt, ...)
  81 {
  82         va_list ap;
  83
  84         va_start(ap, fmt);
  85         status_vprintf(s, 1, color, fmt, ap, "\n");
  86         va_end(ap);
  87 }
  88
  89 void status_printf(struct wt_status *s, const char *color,
  90                         const char *fmt, ...)
  91 {
  92         va_list ap;
  93
  94         va_start(ap, fmt);
  95         status_vprintf(s, 1, color, fmt, ap, NULL);
  96         va_end(ap);
  97 }
  98
  99 void status_printf_more(struct wt_status *s, const char *color,
 100                         const char *fmt, ...)
 101 {
 102         va_list ap;
 103
 104         va_start(ap, fmt);
 105         status_vprintf(s, 0, color, fmt, ap, NULL);
 106         va_end(ap);
 107 }
 108
 109 void wt_status_prepare(struct wt_status *s)
 110 {
 111         unsigned char sha1[20];
 112         const char *head;
 113
 114         memset(s, 0, sizeof(*s));
 115         memcpy(s->color_palette, default_wt_status_colors,
 116                sizeof(default_wt_status_colors));
 117         s->show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
 118         s->use_color = -1;
 119         s->relative_paths = 1;
 120         head = resolve_ref("HEAD", sha1, 0, NULL);
 121         s->branch = head ? xstrdup(head) : NULL;
 122         s->reference = "HEAD";
 123         s->fp = stdout;
 124         s->index_file = get_index_file();
 125         s->change.strdup_strings = 1;
 126         s->untracked.strdup_strings = 1;
 127         s->ignored.strdup_strings = 1;
 128 }
 129
 130 static void wt_status_print_unmerged_header(struct wt_status *s)
 131 {
 132         const char *c = color(WT_STATUS_HEADER, s);
 133
 134         status_printf_ln(s, c, "Unmerged paths:");
 135         if (!advice_status_hints)
 136                 return;
 137         if (s->in_merge)
 138                 ;
 139         else if (!s->is_initial)
 140                 status_printf_ln(s, c, "  (use \"git reset %s <file>...\" to unstage)", s->reference);
 141         else
 142                 status_printf_ln(s, c, "  (use \"git rm --cached <file>...\" to unstage)");
 143         status_printf_ln(s, c, "  (use \"git add/rm <file>...\" as appropriate to mark resolution)");
 144         status_printf_ln(s, c, "");
 145 }
 146
 147 static void wt_status_print_cached_header(struct wt_status *s)
 148 {
 149         const char *c = color(WT_STATUS_HEADER, s);
 150
 151         status_printf_ln(s, c, "Changes to be committed:");
 152         if (!advice_status_hints)
 153                 return;
 154         if (s->in_merge)
 155                 ; /* NEEDSWORK: use "git reset --unresolve"??? */
 156         else if (!s->is_initial)
 157                 status_printf_ln(s, c, "  (use \"git reset %s <file>...\" to unstage)", s->reference);
 158         else
 159                 status_printf_ln(s, c, "  (use \"git rm --cached <file>...\" to unstage)");
 160         status_printf_ln(s, c, "");
 161 }
 162
 163 static void wt_status_print_dirty_header(struct wt_status *s,
 164                                          int has_deleted,
 165                                          int has_dirty_submodules)
 166 {
 167         const char *c = color(WT_STATUS_HEADER, s);
 168
 169         status_printf_ln(s, c, "Changes not staged for commit:");
 170         if (!advice_status_hints)
 171                 return;
 172         if (!has_deleted)
 173                 status_printf_ln(s, c, "  (use \"git add <file>...\" to update what will be committed)");
 174         else
 175                 status_printf_ln(s, c, "  (use \"git add/rm <file>...\" to update what will be committed)");
 176         status_printf_ln(s, c, "  (use \"git checkout -- <file>...\" to discard changes in working directory)");
 177         if (has_dirty_submodules)
 178                 status_printf_ln(s, c, "  (commit or discard the untracked or modified content in submodules)");
 179         status_printf_ln(s, c, "");
 180 }
 181
 182 static void wt_status_print_other_header(struct wt_status *s,
 183                                          const char *what,
 184                                          const char *how)
 185 {
 186         const char *c = color(WT_STATUS_HEADER, s);
 187         status_printf_ln(s, c, "%s files:", what);
 188         if (!advice_status_hints)
 189                 return;
 190         status_printf_ln(s, c, "  (use \"git %s <file>...\" to include in what will be committed)", how);
 191         status_printf_ln(s, c, "");
 192 }
 193
 194 static void wt_status_print_trailer(struct wt_status *s)
 195 {
 196         status_printf_ln(s, color(WT_STATUS_HEADER, s), "");
 197 }
 198
 199 #define quote_path quote_path_relative
 200
 201 static void wt_status_print_unmerged_data(struct wt_status *s,
 202                                           struct string_list_item *it)
 203 {
 204         const char *c = color(WT_STATUS_UNMERGED, s);
 205         struct wt_status_change_data *d = it->util;
 206         struct strbuf onebuf = STRBUF_INIT;
 207         const char *one, *how = "bug";
 208
 209         one = quote_path(it->string, -1, &onebuf, s->prefix);
 210         status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 211         switch (d->stagemask) {
 212         case 1: how = "both deleted:"; break;
 213         case 2: how = "added by us:"; break;
 214         case 3: how = "deleted by them:"; break;
 215         case 4: how = "added by them:"; break;
 216         case 5: how = "deleted by us:"; break;
 217         case 6: how = "both added:"; break;
 218         case 7: how = "both modified:"; break;
 219         }
 220         status_printf_more(s, c, "%-20s%s\n", how, one);
 221         strbuf_release(&onebuf);
 222 }
 223
 224 static void wt_status_print_change_data(struct wt_status *s,
 225                                         int change_type,
 226                                         struct string_list_item *it)
 227 {
 228         struct wt_status_change_data *d = it->util;
 229         const char *c = color(change_type, s);
 230         int status = status;
 231         char *one_name;
 232         char *two_name;
 233         const char *one, *two;
 234         struct strbuf onebuf = STRBUF_INIT, twobuf = STRBUF_INIT;
 235         struct strbuf extra = STRBUF_INIT;
 236
 237         one_name = two_name = it->string;
 238         switch (change_type) {
 239         case WT_STATUS_UPDATED:
 240                 status = d->index_status;
 241                 if (d->head_path)
 242                         one_name = d->head_path;
 243                 break;
 244         case WT_STATUS_CHANGED:
 245                 if (d->new_submodule_commits || d->dirty_submodule) {
 246                         strbuf_addstr(&extra, " (");
 247                         if (d->new_submodule_commits)
 248                                 strbuf_addf(&extra, "new commits, ");
 249                         if (d->dirty_submodule & DIRTY_SUBMODULE_MODIFIED)
 250                                 strbuf_addf(&extra, "modified content, ");
 251                         if (d->dirty_submodule & DIRTY_SUBMODULE_UNTRACKED)
 252                                 strbuf_addf(&extra, "untracked content, ");
 253                         strbuf_setlen(&extra, extra.len - 2);
 254                         strbuf_addch(&extra, ')');
 255                 }
 256                 status = d->worktree_status;
 257                 break;
 258         }
 259
 260         one = quote_path(one_name, -1, &onebuf, s->prefix);
 261         two = quote_path(two_name, -1, &twobuf, s->prefix);
 262
 263         status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 264         switch (status) {
 265         case DIFF_STATUS_ADDED:
 266                 status_printf_more(s, c, "new file:   %s", one);
 267                 break;
 268         case DIFF_STATUS_COPIED:
 269                 status_printf_more(s, c, "copied:     %s -> %s", one, two);
 270                 break;
 271         case DIFF_STATUS_DELETED:
 272                 status_printf_more(s, c, "deleted:    %s", one);
 273                 break;
 274         case DIFF_STATUS_MODIFIED:
 275                 status_printf_more(s, c, "modified:   %s", one);
 276                 break;
 277         case DIFF_STATUS_RENAMED:
 278                 status_printf_more(s, c, "renamed:    %s -> %s", one, two);
 279                 break;
 280         case DIFF_STATUS_TYPE_CHANGED:
 281                 status_printf_more(s, c, "typechange: %s", one);
 282                 break;
 283         case DIFF_STATUS_UNKNOWN:
 284                 status_printf_more(s, c, "unknown:    %s", one);
 285                 break;
 286         case DIFF_STATUS_UNMERGED:
 287                 status_printf_more(s, c, "unmerged:   %s", one);
 288                 break;
 289         default:
 290                 die("bug: unhandled diff status %c", status);
 291         }
 292         if (extra.len) {
 293                 status_printf_more(s, color(WT_STATUS_HEADER, s), "%s", extra.buf);
 294                 strbuf_release(&extra);
 295         }
 296         status_printf_more(s, GIT_COLOR_NORMAL, "\n");
 297         strbuf_release(&onebuf);
 298         strbuf_release(&twobuf);
 299 }
 300
 301 static void wt_status_collect_changed_cb(struct diff_queue_struct *q,
 302                                          struct diff_options *options,
 303                                          void *data)
 304 {
 305         struct wt_status *s = data;
 306         int i;
 307
 308         if (!q->nr)
 309                 return;
 310         s->workdir_dirty = 1;
 311         for (i = 0; i < q->nr; i++) {
 312                 struct diff_filepair *p;
 313                 struct string_list_item *it;
 314                 struct wt_status_change_data *d;
 315
 316                 p = q->queue[i];
 317                 it = string_list_insert(&s->change, p->one->path);
 318                 d = it->util;
 319                 if (!d) {
 320                         d = xcalloc(1, sizeof(*d));
 321                         it->util = d;
 322                 }
 323                 if (!d->worktree_status)
 324                         d->worktree_status = p->status;
 325                 d->dirty_submodule = p->two->dirty_submodule;
 326                 if (S_ISGITLINK(p->two->mode))
 327                         d->new_submodule_commits = !!hashcmp(p->one->sha1, p->two->sha1);
 328         }
 329 }
 330
 331 static int unmerged_mask(const char *path)
 332 {
 333         int pos, mask;
 334         struct cache_entry *ce;
 335
 336         pos = cache_name_pos(path, strlen(path));
 337         if (0 <= pos)
 338                 return 0;
 339
 340         mask = 0;
 341         pos = -pos-1;
 342         while (pos < active_nr) {
 343                 ce = active_cache[pos++];
 344                 if (strcmp(ce->name, path) || !ce_stage(ce))
 345                         break;
 346                 mask |= (1 << (ce_stage(ce) - 1));
 347         }
 348         return mask;
 349 }
 350
 351 static void wt_status_collect_updated_cb(struct diff_queue_struct *q,
 352                                          struct diff_options *options,
 353                                          void *data)
 354 {
 355         struct wt_status *s = data;
 356         int i;
 357
 358         for (i = 0; i < q->nr; i++) {
 359                 struct diff_filepair *p;
 360                 struct string_list_item *it;
 361                 struct wt_status_change_data *d;
 362
 363                 p = q->queue[i];
 364                 it = string_list_insert(&s->change, p->two->path);
 365                 d = it->util;
 366                 if (!d) {
 367                         d = xcalloc(1, sizeof(*d));
 368                         it->util = d;
 369                 }
 370                 if (!d->index_status)
 371                         d->index_status = p->status;
 372                 switch (p->status) {
 373                 case DIFF_STATUS_COPIED:
 374                 case DIFF_STATUS_RENAMED:
 375                         d->head_path = xstrdup(p->one->path);
 376                         break;
 377                 case DIFF_STATUS_UNMERGED:
 378                         d->stagemask = unmerged_mask(p->two->path);
 379                         break;
 380                 }
 381         }
 382 }
 383
 384 static void wt_status_collect_changes_worktree(struct wt_status *s)
 385 {
 386         struct rev_info rev;
 387
 388         init_revisions(&rev, NULL);
 389         setup_revisions(0, NULL, &rev, NULL);
 390         rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 391         DIFF_OPT_SET(&rev.diffopt, DIRTY_SUBMODULES);
 392         if (!s->show_untracked_files)
 393                 DIFF_OPT_SET(&rev.diffopt, IGNORE_UNTRACKED_IN_SUBMODULES);
 394         if (s->ignore_submodule_arg) {
 395                 DIFF_OPT_SET(&rev.diffopt, OVERRIDE_SUBMODULE_CONFIG);
 396                 handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
 397     }
 398         rev.diffopt.format_callback = wt_status_collect_changed_cb;
 399         rev.diffopt.format_callback_data = s;
 400         rev.prune_data = s->pathspec;
 401         run_diff_files(&rev, 0);
 402 }
 403
 404 static void wt_status_collect_changes_index(struct wt_status *s)
 405 {
 406         struct rev_info rev;
 407         struct setup_revision_opt opt;
 408
 409         init_revisions(&rev, NULL);
 410         memset(&opt, 0, sizeof(opt));
 411         opt.def = s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference;
 412         setup_revisions(0, NULL, &rev, &opt);
 413
 414         if (s->ignore_submodule_arg) {
 415                 DIFF_OPT_SET(&rev.diffopt, OVERRIDE_SUBMODULE_CONFIG);
 416                 handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
 417         }
 418
 419         rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 420         rev.diffopt.format_callback = wt_status_collect_updated_cb;
 421         rev.diffopt.format_callback_data = s;
 422         rev.diffopt.detect_rename = 1;
 423         rev.diffopt.rename_limit = 200;
 424         rev.diffopt.break_opt = 0;
 425         rev.prune_data = s->pathspec;
 426         run_diff_index(&rev, 1);
 427 }
 428
 429 static void wt_status_collect_changes_initial(struct wt_status *s)
 430 {
 431         int i;
 432
 433         for (i = 0; i < active_nr; i++) {
 434                 struct string_list_item *it;
 435                 struct wt_status_change_data *d;
 436                 struct cache_entry *ce = active_cache[i];
 437
 438                 if (!ce_path_match(ce, s->pathspec))
 439                         continue;
 440                 it = string_list_insert(&s->change, ce->name);
 441                 d = it->util;
 442                 if (!d) {
 443                         d = xcalloc(1, sizeof(*d));
 444                         it->util = d;
 445                 }
 446                 if (ce_stage(ce)) {
 447                         d->index_status = DIFF_STATUS_UNMERGED;
 448                         d->stagemask |= (1 << (ce_stage(ce) - 1));
 449                 }
 450                 else
 451                         d->index_status = DIFF_STATUS_ADDED;
 452         }
 453 }
 454
 455 static void wt_status_collect_untracked(struct wt_status *s)
 456 {
 457         int i;
 458         struct dir_struct dir;
 459
 460         if (!s->show_untracked_files)
 461                 return;
 462         memset(&dir, 0, sizeof(dir));
 463         if (s->show_untracked_files != SHOW_ALL_UNTRACKED_FILES)
 464                 dir.flags |=
 465                         DIR_SHOW_OTHER_DIRECTORIES | DIR_HIDE_EMPTY_DIRECTORIES;
 466         setup_standard_excludes(&dir);
 467
 468         fill_directory(&dir, s->pathspec);
 469         for (i = 0; i < dir.nr; i++) {
 470                 struct dir_entry *ent = dir.entries[i];
 471                 if (cache_name_is_other(ent->name, ent->len) &&
 472                     match_pathspec(s->pathspec, ent->name, ent->len, 0, NULL))
 473                         string_list_insert(&s->untracked, ent->name);
 474                 free(ent);
 475         }
 476
 477         if (s->show_ignored_files) {
 478                 dir.nr = 0;
 479                 dir.flags = DIR_SHOW_IGNORED | DIR_SHOW_OTHER_DIRECTORIES;
 480                 fill_directory(&dir, s->pathspec);
 481                 for (i = 0; i < dir.nr; i++) {
 482                         struct dir_entry *ent = dir.entries[i];
 483                         if (cache_name_is_other(ent->name, ent->len) &&
 484                             match_pathspec(s->pathspec, ent->name, ent->len, 0, NULL))
 485                                 string_list_insert(&s->ignored, ent->name);
 486                         free(ent);
 487                 }
 488         }
 489
 490         free(dir.entries);
 491 }
 492
 493 void wt_status_collect(struct wt_status *s)
 494 {
 495         wt_status_collect_changes_worktree(s);
 496
 497         if (s->is_initial)
 498                 wt_status_collect_changes_initial(s);
 499         else
 500                 wt_status_collect_changes_index(s);
 501         wt_status_collect_untracked(s);
 502 }
 503
 504 static void wt_status_print_unmerged(struct wt_status *s)
 505 {
 506         int shown_header = 0;
 507         int i;
 508
 509         for (i = 0; i < s->change.nr; i++) {
 510                 struct wt_status_change_data *d;
 511                 struct string_list_item *it;
 512                 it = &(s->change.items[i]);
 513                 d = it->util;
 514                 if (!d->stagemask)
 515                         continue;
 516                 if (!shown_header) {
 517                         wt_status_print_unmerged_header(s);
 518                         shown_header = 1;
 519                 }
 520                 wt_status_print_unmerged_data(s, it);
 521         }
 522         if (shown_header)
 523                 wt_status_print_trailer(s);
 524
 525 }
 526
 527 static void wt_status_print_updated(struct wt_status *s)
 528 {
 529         int shown_header = 0;
 530         int i;
 531
 532         for (i = 0; i < s->change.nr; i++) {
 533                 struct wt_status_change_data *d;
 534                 struct string_list_item *it;
 535                 it = &(s->change.items[i]);
 536                 d = it->util;
 537                 if (!d->index_status ||
 538                     d->index_status == DIFF_STATUS_UNMERGED)
 539                         continue;
 540                 if (!shown_header) {
 541                         wt_status_print_cached_header(s);
 542                         s->commitable = 1;
 543                         shown_header = 1;
 544                 }
 545                 wt_status_print_change_data(s, WT_STATUS_UPDATED, it);
 546         }
 547         if (shown_header)
 548                 wt_status_print_trailer(s);
 549 }
 550
 551 /*
 552  * -1 : has delete
 553  *  0 : no change
 554  *  1 : some change but no delete
 555  */
 556 static int wt_status_check_worktree_changes(struct wt_status *s,
 557                                              int *dirty_submodules)
 558 {
 559         int i;
 560         int changes = 0;
 561
 562         *dirty_submodules = 0;
 563
 564         for (i = 0; i < s->change.nr; i++) {
 565                 struct wt_status_change_data *d;
 566                 d = s->change.items[i].util;
 567                 if (!d->worktree_status ||
 568                     d->worktree_status == DIFF_STATUS_UNMERGED)
 569                         continue;
 570                 if (!changes)
 571                         changes = 1;
 572                 if (d->dirty_submodule)
 573                         *dirty_submodules = 1;
 574                 if (d->worktree_status == DIFF_STATUS_DELETED)
 575                         changes = -1;
 576         }
 577         return changes;
 578 }
 579
 580 static void wt_status_print_changed(struct wt_status *s)
 581 {
 582         int i, dirty_submodules;
 583         int worktree_changes = wt_status_check_worktree_changes(s, &dirty_submodules);
 584
 585         if (!worktree_changes)
 586                 return;
 587
 588         wt_status_print_dirty_header(s, worktree_changes < 0, dirty_submodules);
 589
 590         for (i = 0; i < s->change.nr; i++) {
 591                 struct wt_status_change_data *d;
 592                 struct string_list_item *it;
 593                 it = &(s->change.items[i]);
 594                 d = it->util;
 595                 if (!d->worktree_status ||
 596                     d->worktree_status == DIFF_STATUS_UNMERGED)
 597                         continue;
 598                 wt_status_print_change_data(s, WT_STATUS_CHANGED, it);
 599         }
 600         wt_status_print_trailer(s);
 601 }
 602
 603 static void wt_status_print_submodule_summary(struct wt_status *s, int uncommitted)
 604 {
 605         struct child_process sm_summary;
 606         char summary_limit[64];
 607         char index[PATH_MAX];
 608         const char *env[] = { NULL, NULL };
 609         const char *argv[8];
 610
 611         env[0] =        index;
 612         argv[0] =       "submodule";
 613         argv[1] =       "summary";
 614         argv[2] =       uncommitted ? "--files" : "--cached";
 615         argv[3] =       "--for-status";
 616         argv[4] =       "--summary-limit";
 617         argv[5] =       summary_limit;
 618         argv[6] =       uncommitted ? NULL : (s->amend ? "HEAD^" : "HEAD");
 619         argv[7] =       NULL;
 620
 621         sprintf(summary_limit, "%d", s->submodule_summary);
 622         snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", s->index_file);
 623
 624         memset(&sm_summary, 0, sizeof(sm_summary));
 625         sm_summary.argv = argv;
 626         sm_summary.env = env;
 627         sm_summary.git_cmd = 1;
 628         sm_summary.no_stdin = 1;
 629         fflush(s->fp);
 630         sm_summary.out = dup(fileno(s->fp));    /* run_command closes it */
 631         run_command(&sm_summary);
 632 }
 633
 634 static void wt_status_print_other(struct wt_status *s,
 635                                   struct string_list *l,
 636                                   const char *what,
 637                                   const char *how)
 638 {
 639         int i;
 640         struct strbuf buf = STRBUF_INIT;
 641
 642         if (!s->untracked.nr)
 643                 return;
 644
 645         wt_status_print_other_header(s, what, how);
 646
 647         for (i = 0; i < l->nr; i++) {
 648                 struct string_list_item *it;
 649                 it = &(l->items[i]);
 650                 status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 651                 status_printf_more(s, color(WT_STATUS_UNTRACKED, s),
 652                         "%s\n", quote_path(it->string, strlen(it->string),
 653                                             &buf, s->prefix));
 654         }
 655         strbuf_release(&buf);
 656 }
 657
 658 static void wt_status_print_verbose(struct wt_status *s)
 659 {
 660         struct rev_info rev;
 661         struct setup_revision_opt opt;
 662
 663         init_revisions(&rev, NULL);
 664         DIFF_OPT_SET(&rev.diffopt, ALLOW_TEXTCONV);
 665
 666         memset(&opt, 0, sizeof(opt));
 667         opt.def = s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference;
 668         setup_revisions(0, NULL, &rev, &opt);
 669
 670         rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
 671         rev.diffopt.detect_rename = 1;
 672         rev.diffopt.file = s->fp;
 673         rev.diffopt.close_file = 0;
 674         /*
 675          * If we're not going to stdout, then we definitely don't
 676          * want color, since we are going to the commit message
 677          * file (and even the "auto" setting won't work, since it
 678          * will have checked isatty on stdout).
 679          */
 680         if (s->fp != stdout)
 681                 DIFF_OPT_CLR(&rev.diffopt, COLOR_DIFF);
 682         run_diff_index(&rev, 1);
 683 }
 684
 685 static void wt_status_print_tracking(struct wt_status *s)
 686 {
 687         struct strbuf sb = STRBUF_INIT;
 688         const char *cp, *ep;
 689         struct branch *branch;
 690
 691         assert(s->branch && !s->is_initial);
 692         if (prefixcmp(s->branch, "refs/heads/"))
 693                 return;
 694         branch = branch_get(s->branch + 11);
 695         if (!format_tracking_info(branch, &sb))
 696                 return;
 697
 698         for (cp = sb.buf; (ep = strchr(cp, '\n')) != NULL; cp = ep + 1)
 699                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s),
 700                                  "# %.*s", (int)(ep - cp), cp);
 701         color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "#");
 702 }
 703
 704 void wt_status_print(struct wt_status *s)
 705 {
 706         const char *branch_color = color(WT_STATUS_ONBRANCH, s);
 707         const char *branch_status_color = color(WT_STATUS_HEADER, s);
 708
 709         if (s->branch) {
 710                 const char *on_what = "On branch ";
 711                 const char *branch_name = s->branch;
 712                 if (!prefixcmp(branch_name, "refs/heads/"))
 713                         branch_name += 11;
 714                 else if (!strcmp(branch_name, "HEAD")) {
 715                         branch_name = "";
 716                         branch_status_color = color(WT_STATUS_NOBRANCH, s);
 717                         on_what = "Not currently on any branch.";
 718                 }
 719                 status_printf(s, color(WT_STATUS_HEADER, s), "");
 720                 status_printf_more(s, branch_status_color, "%s", on_what);
 721                 status_printf_more(s, branch_color, "%s\n", branch_name);
 722                 if (!s->is_initial)
 723                         wt_status_print_tracking(s);
 724         }
 725
 726         if (s->is_initial) {
 727                 status_printf_ln(s, color(WT_STATUS_HEADER, s), "");
 728                 status_printf_ln(s, color(WT_STATUS_HEADER, s), "Initial commit");
 729                 status_printf_ln(s, color(WT_STATUS_HEADER, s), "");
 730         }
 731
 732         wt_status_print_updated(s);
 733         wt_status_print_unmerged(s);
 734         wt_status_print_changed(s);
 735         if (s->submodule_summary &&
 736             (!s->ignore_submodule_arg ||
 737              strcmp(s->ignore_submodule_arg, "all"))) {
 738                 wt_status_print_submodule_summary(s, 0);  /* staged */
 739                 wt_status_print_submodule_summary(s, 1);  /* unstaged */
 740         }
 741         if (s->show_untracked_files) {
 742                 wt_status_print_other(s, &s->untracked, "Untracked", "add");
 743                 if (s->show_ignored_files)
 744                         wt_status_print_other(s, &s->ignored, "Ignored", "add -f");
 745         } else if (s->commitable)
 746                 status_printf_ln(s, GIT_COLOR_NORMAL, "Untracked files not listed%s",
 747                         advice_status_hints
 748                         ? " (use -u option to show untracked files)" : "");
 749
 750         if (s->verbose)
 751                 wt_status_print_verbose(s);
 752         if (!s->commitable) {
 753                 if (s->amend)
 754                         status_printf_ln(s, GIT_COLOR_NORMAL, "No changes");
 755                 else if (s->nowarn)
 756                         ; /* nothing */
 757                 else if (s->workdir_dirty)
 758                         printf("no changes added to commit%s\n",
 759                                 advice_status_hints
 760                                 ? " (use \"git add\" and/or \"git commit -a\")" : "");
 761                 else if (s->untracked.nr)
 762                         printf("nothing added to commit but untracked files present%s\n",
 763                                 advice_status_hints
 764                                 ? " (use \"git add\" to track)" : "");
 765                 else if (s->is_initial)
 766                         printf("nothing to commit%s\n", advice_status_hints
 767                                 ? " (create/copy files and use \"git add\" to track)" : "");
 768                 else if (!s->show_untracked_files)
 769                         printf("nothing to commit%s\n", advice_status_hints
 770                                 ? " (use -u to show untracked files)" : "");
 771                 else
 772                         printf("nothing to commit%s\n", advice_status_hints
 773                                 ? " (working directory clean)" : "");
 774         }
 775 }
 776
 777 static void wt_shortstatus_unmerged(int null_termination, struct string_list_item *it,
 778                            struct wt_status *s)
 779 {
 780         struct wt_status_change_data *d = it->util;
 781         const char *how = "??";
 782
 783         switch (d->stagemask) {
 784         case 1: how = "DD"; break; /* both deleted */
 785         case 2: how = "AU"; break; /* added by us */
 786         case 3: how = "UD"; break; /* deleted by them */
 787         case 4: how = "UA"; break; /* added by them */
 788         case 5: how = "DU"; break; /* deleted by us */
 789         case 6: how = "AA"; break; /* both added */
 790         case 7: how = "UU"; break; /* both modified */
 791         }
 792         color_fprintf(s->fp, color(WT_STATUS_UNMERGED, s), "%s", how);
 793         if (null_termination) {
 794                 fprintf(stdout, " %s%c", it->string, 0);
 795         } else {
 796                 struct strbuf onebuf = STRBUF_INIT;
 797                 const char *one;
 798                 one = quote_path(it->string, -1, &onebuf, s->prefix);
 799                 printf(" %s\n", one);
 800                 strbuf_release(&onebuf);
 801         }
 802 }
 803
 804 static void wt_shortstatus_status(int null_termination, struct string_list_item *it,
 805                          struct wt_status *s)
 806 {
 807         struct wt_status_change_data *d = it->util;
 808
 809         if (d->index_status)
 810                 color_fprintf(s->fp, color(WT_STATUS_UPDATED, s), "%c", d->index_status);
 811         else
 812                 putchar(' ');
 813         if (d->worktree_status)
 814                 color_fprintf(s->fp, color(WT_STATUS_CHANGED, s), "%c", d->worktree_status);
 815         else
 816                 putchar(' ');
 817         putchar(' ');
 818         if (null_termination) {
 819                 fprintf(stdout, "%s%c", it->string, 0);
 820                 if (d->head_path)
 821                         fprintf(stdout, "%s%c", d->head_path, 0);
 822         } else {
 823                 struct strbuf onebuf = STRBUF_INIT;
 824                 const char *one;
 825                 if (d->head_path) {
 826                         one = quote_path(d->head_path, -1, &onebuf, s->prefix);
 827                         if (*one != '"' && strchr(one, ' ') != NULL) {
 828                                 putchar('"');
 829                                 strbuf_addch(&onebuf, '"');
 830                                 one = onebuf.buf;
 831                         }
 832                         printf("%s -> ", one);
 833                         strbuf_release(&onebuf);
 834                 }
 835                 one = quote_path(it->string, -1, &onebuf, s->prefix);
 836                 if (*one != '"' && strchr(one, ' ') != NULL) {
 837                         putchar('"');
 838                         strbuf_addch(&onebuf, '"');
 839                         one = onebuf.buf;
 840                 }
 841                 printf("%s\n", one);
 842                 strbuf_release(&onebuf);
 843         }
 844 }
 845
 846 static void wt_shortstatus_other(int null_termination, struct string_list_item *it,
 847                                  struct wt_status *s, const char *sign)
 848 {
 849         if (null_termination) {
 850                 fprintf(stdout, "%s %s%c", sign, it->string, 0);
 851         } else {
 852                 struct strbuf onebuf = STRBUF_INIT;
 853                 const char *one;
 854                 one = quote_path(it->string, -1, &onebuf, s->prefix);
 855                 color_fprintf(s->fp, color(WT_STATUS_UNTRACKED, s), "%s", sign);
 856                 printf(" %s\n", one);
 857                 strbuf_release(&onebuf);
 858         }
 859 }
 860
 861 static void wt_shortstatus_print_tracking(struct wt_status *s)
 862 {
 863         struct branch *branch;
 864         const char *header_color = color(WT_STATUS_HEADER, s);
 865         const char *branch_color_local = color(WT_STATUS_LOCAL_BRANCH, s);
 866         const char *branch_color_remote = color(WT_STATUS_REMOTE_BRANCH, s);
 867
 868         const char *base;
 869         const char *branch_name;
 870         int num_ours, num_theirs;
 871
 872         color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "## ");
 873
 874         if (!s->branch)
 875                 return;
 876         branch_name = s->branch;
 877
 878         if (!prefixcmp(branch_name, "refs/heads/"))
 879                 branch_name += 11;
 880         else if (!strcmp(branch_name, "HEAD")) {
 881                 branch_name = "HEAD (no branch)";
 882                 branch_color_local = color(WT_STATUS_NOBRANCH, s);
 883         }
 884
 885         branch = branch_get(s->branch + 11);
 886         if (s->is_initial)
 887                 color_fprintf(s->fp, header_color, "Initial commit on ");
 888         if (!stat_tracking_info(branch, &num_ours, &num_theirs)) {
 889                 color_fprintf_ln(s->fp, branch_color_local,
 890                         "%s", branch_name);
 891                 return;
 892         }
 893
 894         base = branch->merge[0]->dst;
 895         base = shorten_unambiguous_ref(base, 0);
 896         color_fprintf(s->fp, branch_color_local, "%s", branch_name);
 897         color_fprintf(s->fp, header_color, "...");
 898         color_fprintf(s->fp, branch_color_remote, "%s", base);
 899
 900         color_fprintf(s->fp, header_color, " [");
 901         if (!num_ours) {
 902                 color_fprintf(s->fp, header_color, "behind ");
 903                 color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
 904         } else if (!num_theirs) {
 905                 color_fprintf(s->fp, header_color, "ahead ");
 906                 color_fprintf(s->fp, branch_color_local, "%d", num_ours);
 907         } else {
 908                 color_fprintf(s->fp, header_color, "ahead ");
 909                 color_fprintf(s->fp, branch_color_local, "%d", num_ours);
 910                 color_fprintf(s->fp, header_color, ", behind ");
 911                 color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
 912         }
 913
 914         color_fprintf_ln(s->fp, header_color, "]");
 915 }
 916
 917 void wt_shortstatus_print(struct wt_status *s, int null_termination, int show_branch)
 918 {
 919         int i;
 920
 921         if (show_branch)
 922                 wt_shortstatus_print_tracking(s);
 923
 924         for (i = 0; i < s->change.nr; i++) {
 925                 struct wt_status_change_data *d;
 926                 struct string_list_item *it;
 927
 928                 it = &(s->change.items[i]);
 929                 d = it->util;
 930                 if (d->stagemask)
 931                         wt_shortstatus_unmerged(null_termination, it, s);
 932                 else
 933                         wt_shortstatus_status(null_termination, it, s);
 934         }
 935         for (i = 0; i < s->untracked.nr; i++) {
 936                 struct string_list_item *it;
 937
 938                 it = &(s->untracked.items[i]);
 939                 wt_shortstatus_other(null_termination, it, s, "??");
 940         }
 941         for (i = 0; i < s->ignored.nr; i++) {
 942                 struct string_list_item *it;
 943
 944                 it = &(s->ignored.items[i]);
 945                 wt_shortstatus_other(null_termination, it, s, "!!");
 946         }
 947 }
 948
 949 void wt_porcelain_print(struct wt_status *s, int null_termination)
 950 {
 951         s->use_color = 0;
 952         s->relative_paths = 0;
 953         s->prefix = NULL;
 954         wt_shortstatus_print(s, null_termination, 0);
 955 }