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
  13 static char default_wt_status_colors[][COLOR_MAXLEN] = {
  14         GIT_COLOR_NORMAL, /* WT_STATUS_HEADER */
  15         GIT_COLOR_GREEN,  /* WT_STATUS_UPDATED */
  16         GIT_COLOR_RED,    /* WT_STATUS_CHANGED */
  17         GIT_COLOR_RED,    /* WT_STATUS_UNTRACKED */
  18         GIT_COLOR_RED,    /* WT_STATUS_NOBRANCH */
  19         GIT_COLOR_RED,    /* WT_STATUS_UNMERGED */
  20 };
  21
  22 static const char *color(int slot, struct wt_status *s)
  23 {
  24         return s->use_color > 0 ? s->color_palette[slot] : "";
  25 }
  26
  27 void wt_status_prepare(struct wt_status *s)
  28 {
  29         unsigned char sha1[20];
  30         const char *head;
  31
  32         memset(s, 0, sizeof(*s));
  33         memcpy(s->color_palette, default_wt_status_colors,
  34                sizeof(default_wt_status_colors));
  35         s->show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
  36         s->use_color = -1;
  37         s->relative_paths = 1;
  38         head = resolve_ref("HEAD", sha1, 0, NULL);
  39         s->branch = head ? xstrdup(head) : NULL;
  40         s->reference = "HEAD";
  41         s->fp = stdout;
  42         s->index_file = get_index_file();
  43         s->change.strdup_strings = 1;
  44         s->untracked.strdup_strings = 1;
  45 }
  46
  47 static void wt_status_print_unmerged_header(struct wt_status *s)
  48 {
  49         const char *c = color(WT_STATUS_HEADER, s);
  50         color_fprintf_ln(s->fp, c, "# Unmerged paths:");
  51         if (!advice_status_hints)
  52                 return;
  53         if (!s->is_initial)
  54                 color_fprintf_ln(s->fp, c, "#   (use \"git reset %s <file>...\" to unstage)", s->reference);
  55         else
  56                 color_fprintf_ln(s->fp, c, "#   (use \"git rm --cached <file>...\" to unstage)");
  57         color_fprintf_ln(s->fp, c, "#   (use \"git add <file>...\" to mark resolution)");
  58         color_fprintf_ln(s->fp, c, "#");
  59 }
  60
  61 static void wt_status_print_cached_header(struct wt_status *s)
  62 {
  63         const char *c = color(WT_STATUS_HEADER, s);
  64         color_fprintf_ln(s->fp, c, "# Changes to be committed:");
  65         if (!advice_status_hints)
  66                 return;
  67         if (!s->is_initial) {
  68                 color_fprintf_ln(s->fp, c, "#   (use \"git reset %s <file>...\" to unstage)", s->reference);
  69         } else {
  70                 color_fprintf_ln(s->fp, c, "#   (use \"git rm --cached <file>...\" to unstage)");
  71         }
  72         color_fprintf_ln(s->fp, c, "#");
  73 }
  74
  75 static void wt_status_print_dirty_header(struct wt_status *s,
  76                                          int has_deleted)
  77 {
  78         const char *c = color(WT_STATUS_HEADER, s);
  79         color_fprintf_ln(s->fp, c, "# Changed but not updated:");
  80         if (!advice_status_hints)
  81                 return;
  82         if (!has_deleted)
  83                 color_fprintf_ln(s->fp, c, "#   (use \"git add <file>...\" to update what will be committed)");
  84         else
  85                 color_fprintf_ln(s->fp, c, "#   (use \"git add/rm <file>...\" to update what will be committed)");
  86         color_fprintf_ln(s->fp, c, "#   (use \"git checkout -- <file>...\" to discard changes in working directory)");
  87         color_fprintf_ln(s->fp, c, "#");
  88 }
  89
  90 static void wt_status_print_untracked_header(struct wt_status *s)
  91 {
  92         const char *c = color(WT_STATUS_HEADER, s);
  93         color_fprintf_ln(s->fp, c, "# Untracked files:");
  94         if (!advice_status_hints)
  95                 return;
  96         color_fprintf_ln(s->fp, c, "#   (use \"git add <file>...\" to include in what will be committed)");
  97         color_fprintf_ln(s->fp, c, "#");
  98 }
  99
 100 static void wt_status_print_trailer(struct wt_status *s)
 101 {
 102         color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "#");
 103 }
 104
 105 #define quote_path quote_path_relative
 106
 107 static void wt_status_print_unmerged_data(struct wt_status *s,
 108                                           struct string_list_item *it)
 109 {
 110         const char *c = color(WT_STATUS_UNMERGED, s);
 111         struct wt_status_change_data *d = it->util;
 112         struct strbuf onebuf = STRBUF_INIT;
 113         const char *one, *how = "bug";
 114
 115         one = quote_path(it->string, -1, &onebuf, s->prefix);
 116         color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "#\t");
 117         switch (d->stagemask) {
 118         case 1: how = "both deleted:"; break;
 119         case 2: how = "added by us:"; break;
 120         case 3: how = "deleted by them:"; break;
 121         case 4: how = "added by them:"; break;
 122         case 5: how = "deleted by us:"; break;
 123         case 6: how = "both added:"; break;
 124         case 7: how = "both modified:"; break;
 125         }
 126         color_fprintf(s->fp, c, "%-20s%s\n", how, one);
 127         strbuf_release(&onebuf);
 128 }
 129
 130 static void wt_status_print_change_data(struct wt_status *s,
 131                                         int change_type,
 132                                         struct string_list_item *it)
 133 {
 134         struct wt_status_change_data *d = it->util;
 135         const char *c = color(change_type, s);
 136         int status = status;
 137         char *one_name;
 138         char *two_name;
 139         const char *one, *two;
 140         struct strbuf onebuf = STRBUF_INIT, twobuf = STRBUF_INIT;
 141
 142         one_name = two_name = it->string;
 143         switch (change_type) {
 144         case WT_STATUS_UPDATED:
 145                 status = d->index_status;
 146                 if (d->head_path)
 147                         one_name = d->head_path;
 148                 break;
 149         case WT_STATUS_CHANGED:
 150                 status = d->worktree_status;
 151                 break;
 152         }
 153
 154         one = quote_path(one_name, -1, &onebuf, s->prefix);
 155         two = quote_path(two_name, -1, &twobuf, s->prefix);
 156
 157         color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "#\t");
 158         switch (status) {
 159         case DIFF_STATUS_ADDED:
 160                 color_fprintf(s->fp, c, "new file:   %s", one);
 161                 break;
 162         case DIFF_STATUS_COPIED:
 163                 color_fprintf(s->fp, c, "copied:     %s -> %s", one, two);
 164                 break;
 165         case DIFF_STATUS_DELETED:
 166                 color_fprintf(s->fp, c, "deleted:    %s", one);
 167                 break;
 168         case DIFF_STATUS_MODIFIED:
 169                 color_fprintf(s->fp, c, "modified:   %s", one);
 170                 break;
 171         case DIFF_STATUS_RENAMED:
 172                 color_fprintf(s->fp, c, "renamed:    %s -> %s", one, two);
 173                 break;
 174         case DIFF_STATUS_TYPE_CHANGED:
 175                 color_fprintf(s->fp, c, "typechange: %s", one);
 176                 break;
 177         case DIFF_STATUS_UNKNOWN:
 178                 color_fprintf(s->fp, c, "unknown:    %s", one);
 179                 break;
 180         case DIFF_STATUS_UNMERGED:
 181                 color_fprintf(s->fp, c, "unmerged:   %s", one);
 182                 break;
 183         default:
 184                 die("bug: unhandled diff status %c", status);
 185         }
 186         fprintf(s->fp, "\n");
 187         strbuf_release(&onebuf);
 188         strbuf_release(&twobuf);
 189 }
 190
 191 static void wt_status_collect_changed_cb(struct diff_queue_struct *q,
 192                                          struct diff_options *options,
 193                                          void *data)
 194 {
 195         struct wt_status *s = data;
 196         int i;
 197
 198         if (!q->nr)
 199                 return;
 200         s->workdir_dirty = 1;
 201         for (i = 0; i < q->nr; i++) {
 202                 struct diff_filepair *p;
 203                 struct string_list_item *it;
 204                 struct wt_status_change_data *d;
 205
 206                 p = q->queue[i];
 207                 it = string_list_insert(p->one->path, &s->change);
 208                 d = it->util;
 209                 if (!d) {
 210                         d = xcalloc(1, sizeof(*d));
 211                         it->util = d;
 212                 }
 213                 if (!d->worktree_status)
 214                         d->worktree_status = p->status;
 215         }
 216 }
 217
 218 static int unmerged_mask(const char *path)
 219 {
 220         int pos, mask;
 221         struct cache_entry *ce;
 222
 223         pos = cache_name_pos(path, strlen(path));
 224         if (0 <= pos)
 225                 return 0;
 226
 227         mask = 0;
 228         pos = -pos-1;
 229         while (pos < active_nr) {
 230                 ce = active_cache[pos++];
 231                 if (strcmp(ce->name, path) || !ce_stage(ce))
 232                         break;
 233                 mask |= (1 << (ce_stage(ce) - 1));
 234         }
 235         return mask;
 236 }
 237
 238 static void wt_status_collect_updated_cb(struct diff_queue_struct *q,
 239                                          struct diff_options *options,
 240                                          void *data)
 241 {
 242         struct wt_status *s = data;
 243         int i;
 244
 245         for (i = 0; i < q->nr; i++) {
 246                 struct diff_filepair *p;
 247                 struct string_list_item *it;
 248                 struct wt_status_change_data *d;
 249
 250                 p = q->queue[i];
 251                 it = string_list_insert(p->two->path, &s->change);
 252                 d = it->util;
 253                 if (!d) {
 254                         d = xcalloc(1, sizeof(*d));
 255                         it->util = d;
 256                 }
 257                 if (!d->index_status)
 258                         d->index_status = p->status;
 259                 switch (p->status) {
 260                 case DIFF_STATUS_COPIED:
 261                 case DIFF_STATUS_RENAMED:
 262                         d->head_path = xstrdup(p->one->path);
 263                         break;
 264                 case DIFF_STATUS_UNMERGED:
 265                         d->stagemask = unmerged_mask(p->two->path);
 266                         break;
 267                 }
 268         }
 269 }
 270
 271 static void wt_status_collect_changes_worktree(struct wt_status *s)
 272 {
 273         struct rev_info rev;
 274
 275         init_revisions(&rev, NULL);
 276         setup_revisions(0, NULL, &rev, NULL);
 277         rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 278         rev.diffopt.format_callback = wt_status_collect_changed_cb;
 279         rev.diffopt.format_callback_data = s;
 280         run_diff_files(&rev, 0);
 281 }
 282
 283 static void wt_status_collect_changes_index(struct wt_status *s)
 284 {
 285         struct rev_info rev;
 286
 287         init_revisions(&rev, NULL);
 288         setup_revisions(0, NULL, &rev,
 289                 s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference);
 290         rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 291         rev.diffopt.format_callback = wt_status_collect_updated_cb;
 292         rev.diffopt.format_callback_data = s;
 293         rev.diffopt.detect_rename = 1;
 294         rev.diffopt.rename_limit = 200;
 295         rev.diffopt.break_opt = 0;
 296         run_diff_index(&rev, 1);
 297 }
 298
 299 static void wt_status_collect_changes_initial(struct wt_status *s)
 300 {
 301         int i;
 302
 303         for (i = 0; i < active_nr; i++) {
 304                 struct string_list_item *it;
 305                 struct wt_status_change_data *d;
 306                 struct cache_entry *ce = active_cache[i];
 307
 308                 it = string_list_insert(ce->name, &s->change);
 309                 d = it->util;
 310                 if (!d) {
 311                         d = xcalloc(1, sizeof(*d));
 312                         it->util = d;
 313                 }
 314                 if (ce_stage(ce)) {
 315                         d->index_status = DIFF_STATUS_UNMERGED;
 316                         d->stagemask |= (1 << (ce_stage(ce) - 1));
 317                 }
 318                 else
 319                         d->index_status = DIFF_STATUS_ADDED;
 320         }
 321 }
 322
 323 static void wt_status_collect_untracked(struct wt_status *s)
 324 {
 325         int i;
 326         struct dir_struct dir;
 327
 328         if (!s->show_untracked_files)
 329                 return;
 330         memset(&dir, 0, sizeof(dir));
 331         if (s->show_untracked_files != SHOW_ALL_UNTRACKED_FILES)
 332                 dir.flags |=
 333                         DIR_SHOW_OTHER_DIRECTORIES | DIR_HIDE_EMPTY_DIRECTORIES;
 334         setup_standard_excludes(&dir);
 335
 336         fill_directory(&dir, NULL);
 337         for (i = 0; i < dir.nr; i++) {
 338                 struct dir_entry *ent = dir.entries[i];
 339                 if (!cache_name_is_other(ent->name, ent->len))
 340                         continue;
 341                 s->workdir_untracked = 1;
 342                 string_list_insert(ent->name, &s->untracked);
 343         }
 344 }
 345
 346 void wt_status_collect(struct wt_status *s)
 347 {
 348         wt_status_collect_changes_worktree(s);
 349
 350         if (s->is_initial)
 351                 wt_status_collect_changes_initial(s);
 352         else
 353                 wt_status_collect_changes_index(s);
 354         wt_status_collect_untracked(s);
 355 }
 356
 357 static void wt_status_print_unmerged(struct wt_status *s)
 358 {
 359         int shown_header = 0;
 360         int i;
 361
 362         for (i = 0; i < s->change.nr; i++) {
 363                 struct wt_status_change_data *d;
 364                 struct string_list_item *it;
 365                 it = &(s->change.items[i]);
 366                 d = it->util;
 367                 if (!d->stagemask)
 368                         continue;
 369                 if (!shown_header) {
 370                         wt_status_print_unmerged_header(s);
 371                         shown_header = 1;
 372                 }
 373                 wt_status_print_unmerged_data(s, it);
 374         }
 375         if (shown_header)
 376                 wt_status_print_trailer(s);
 377
 378 }
 379
 380 static void wt_status_print_updated(struct wt_status *s)
 381 {
 382         int shown_header = 0;
 383         int i;
 384
 385         for (i = 0; i < s->change.nr; i++) {
 386                 struct wt_status_change_data *d;
 387                 struct string_list_item *it;
 388                 it = &(s->change.items[i]);
 389                 d = it->util;
 390                 if (!d->index_status ||
 391                     d->index_status == DIFF_STATUS_UNMERGED)
 392                         continue;
 393                 if (!shown_header) {
 394                         wt_status_print_cached_header(s);
 395                         s->commitable = 1;
 396                         shown_header = 1;
 397                 }
 398                 wt_status_print_change_data(s, WT_STATUS_UPDATED, it);
 399         }
 400         if (shown_header)
 401                 wt_status_print_trailer(s);
 402 }
 403
 404 /*
 405  * -1 : has delete
 406  *  0 : no change
 407  *  1 : some change but no delete
 408  */
 409 static int wt_status_check_worktree_changes(struct wt_status *s)
 410 {
 411         int i;
 412         int changes = 0;
 413
 414         for (i = 0; i < s->change.nr; i++) {
 415                 struct wt_status_change_data *d;
 416                 d = s->change.items[i].util;
 417                 if (!d->worktree_status ||
 418                     d->worktree_status == DIFF_STATUS_UNMERGED)
 419                         continue;
 420                 changes = 1;
 421                 if (d->worktree_status == DIFF_STATUS_DELETED)
 422                         return -1;
 423         }
 424         return changes;
 425 }
 426
 427 static void wt_status_print_changed(struct wt_status *s)
 428 {
 429         int i;
 430         int worktree_changes = wt_status_check_worktree_changes(s);
 431
 432         if (!worktree_changes)
 433                 return;
 434
 435         wt_status_print_dirty_header(s, worktree_changes < 0);
 436
 437         for (i = 0; i < s->change.nr; i++) {
 438                 struct wt_status_change_data *d;
 439                 struct string_list_item *it;
 440                 it = &(s->change.items[i]);
 441                 d = it->util;
 442                 if (!d->worktree_status ||
 443                     d->worktree_status == DIFF_STATUS_UNMERGED)
 444                         continue;
 445                 wt_status_print_change_data(s, WT_STATUS_CHANGED, it);
 446         }
 447         wt_status_print_trailer(s);
 448 }
 449
 450 static void wt_status_print_submodule_summary(struct wt_status *s)
 451 {
 452         struct child_process sm_summary;
 453         char summary_limit[64];
 454         char index[PATH_MAX];
 455         const char *env[] = { index, NULL };
 456         const char *argv[] = {
 457                 "submodule",
 458                 "summary",
 459                 "--cached",
 460                 "--for-status",
 461                 "--summary-limit",
 462                 summary_limit,
 463                 s->amend ? "HEAD^" : "HEAD",
 464                 NULL
 465         };
 466
 467         sprintf(summary_limit, "%d", s->submodule_summary);
 468         snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", s->index_file);
 469
 470         memset(&sm_summary, 0, sizeof(sm_summary));
 471         sm_summary.argv = argv;
 472         sm_summary.env = env;
 473         sm_summary.git_cmd = 1;
 474         sm_summary.no_stdin = 1;
 475         fflush(s->fp);
 476         sm_summary.out = dup(fileno(s->fp));    /* run_command closes it */
 477         run_command(&sm_summary);
 478 }
 479
 480 static void wt_status_print_untracked(struct wt_status *s)
 481 {
 482         int i;
 483         struct strbuf buf = STRBUF_INIT;
 484
 485         if (!s->untracked.nr)
 486                 return;
 487
 488         wt_status_print_untracked_header(s);
 489         for (i = 0; i < s->untracked.nr; i++) {
 490                 struct string_list_item *it;
 491                 it = &(s->untracked.items[i]);
 492                 color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "#\t");
 493                 color_fprintf_ln(s->fp, color(WT_STATUS_UNTRACKED, s), "%s",
 494                                  quote_path(it->string, strlen(it->string),
 495                                             &buf, s->prefix));
 496         }
 497         strbuf_release(&buf);
 498 }
 499
 500 static void wt_status_print_verbose(struct wt_status *s)
 501 {
 502         struct rev_info rev;
 503
 504         init_revisions(&rev, NULL);
 505         DIFF_OPT_SET(&rev.diffopt, ALLOW_TEXTCONV);
 506         setup_revisions(0, NULL, &rev,
 507                 s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference);
 508         rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
 509         rev.diffopt.detect_rename = 1;
 510         rev.diffopt.file = s->fp;
 511         rev.diffopt.close_file = 0;
 512         /*
 513          * If we're not going to stdout, then we definitely don't
 514          * want color, since we are going to the commit message
 515          * file (and even the "auto" setting won't work, since it
 516          * will have checked isatty on stdout).
 517          */
 518         if (s->fp != stdout)
 519                 DIFF_OPT_CLR(&rev.diffopt, COLOR_DIFF);
 520         run_diff_index(&rev, 1);
 521 }
 522
 523 static void wt_status_print_tracking(struct wt_status *s)
 524 {
 525         struct strbuf sb = STRBUF_INIT;
 526         const char *cp, *ep;
 527         struct branch *branch;
 528
 529         assert(s->branch && !s->is_initial);
 530         if (prefixcmp(s->branch, "refs/heads/"))
 531                 return;
 532         branch = branch_get(s->branch + 11);
 533         if (!format_tracking_info(branch, &sb))
 534                 return;
 535
 536         for (cp = sb.buf; (ep = strchr(cp, '\n')) != NULL; cp = ep + 1)
 537                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s),
 538                                  "# %.*s", (int)(ep - cp), cp);
 539         color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "#");
 540 }
 541
 542 void wt_status_print(struct wt_status *s)
 543 {
 544         unsigned char sha1[20];
 545         const char *branch_color = color(WT_STATUS_HEADER, s);
 546
 547         s->is_initial = get_sha1(s->reference, sha1) ? 1 : 0;
 548         if (s->branch) {
 549                 const char *on_what = "On branch ";
 550                 const char *branch_name = s->branch;
 551                 if (!prefixcmp(branch_name, "refs/heads/"))
 552                         branch_name += 11;
 553                 else if (!strcmp(branch_name, "HEAD")) {
 554                         branch_name = "";
 555                         branch_color = color(WT_STATUS_NOBRANCH, s);
 556                         on_what = "Not currently on any branch.";
 557                 }
 558                 color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "# ");
 559                 color_fprintf_ln(s->fp, branch_color, "%s%s", on_what, branch_name);
 560                 if (!s->is_initial)
 561                         wt_status_print_tracking(s);
 562         }
 563
 564         wt_status_collect(s);
 565
 566         if (s->is_initial) {
 567                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "#");
 568                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "# Initial commit");
 569                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "#");
 570         }
 571
 572         wt_status_print_updated(s);
 573         wt_status_print_unmerged(s);
 574         wt_status_print_changed(s);
 575         if (s->submodule_summary)
 576                 wt_status_print_submodule_summary(s);
 577         if (s->show_untracked_files)
 578                 wt_status_print_untracked(s);
 579         else if (s->commitable)
 580                  fprintf(s->fp, "# Untracked files not listed (use -u option to show untracked files)\n");
 581
 582         if (s->verbose)
 583                 wt_status_print_verbose(s);
 584         if (!s->commitable) {
 585                 if (s->amend)
 586                         fprintf(s->fp, "# No changes\n");
 587                 else if (s->nowarn)
 588                         ; /* nothing */
 589                 else if (s->workdir_dirty)
 590                         printf("no changes added to commit (use \"git add\" and/or \"git commit -a\")\n");
 591                 else if (s->untracked.nr)
 592                         printf("nothing added to commit but untracked files present (use \"git add\" to track)\n");
 593                 else if (s->is_initial)
 594                         printf("nothing to commit (create/copy files and use \"git add\" to track)\n");
 595                 else if (!s->show_untracked_files)
 596                         printf("nothing to commit (use -u to show untracked files)\n");
 597                 else
 598                         printf("nothing to commit (working directory clean)\n");
 599         }
 600 }