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