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