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 int parse_status_slot(const char *var, int offset)
  23 {
  24         if (!strcasecmp(var+offset, "header"))
  25                 return WT_STATUS_HEADER;
  26         if (!strcasecmp(var+offset, "updated")
  27                 || !strcasecmp(var+offset, "added"))
  28                 return WT_STATUS_UPDATED;
  29         if (!strcasecmp(var+offset, "changed"))
  30                 return WT_STATUS_CHANGED;
  31         if (!strcasecmp(var+offset, "untracked"))
  32                 return WT_STATUS_UNTRACKED;
  33         if (!strcasecmp(var+offset, "nobranch"))
  34                 return WT_STATUS_NOBRANCH;
  35         if (!strcasecmp(var+offset, "unmerged"))
  36                 return WT_STATUS_UNMERGED;
  37         die("bad config variable '%s'", var);
  38 }
  39
  40 static const char *color(int slot, struct wt_status *s)
  41 {
  42         return s->use_color > 0 ? s->color_palette[slot] : "";
  43 }
  44
  45 void wt_status_prepare(struct wt_status *s)
  46 {
  47         unsigned char sha1[20];
  48         const char *head;
  49
  50         memset(s, 0, sizeof(*s));
  51         memcpy(s->color_palette, default_wt_status_colors,
  52                sizeof(default_wt_status_colors));
  53         s->show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
  54         s->use_color = -1;
  55         s->relative_paths = 1;
  56         head = resolve_ref("HEAD", sha1, 0, NULL);
  57         s->branch = head ? xstrdup(head) : NULL;
  58         s->reference = "HEAD";
  59         s->fp = stdout;
  60         s->index_file = get_index_file();
  61         s->change.strdup_strings = 1;
  62 }
  63
  64 static void wt_status_print_unmerged_header(struct wt_status *s)
  65 {
  66         const char *c = color(WT_STATUS_HEADER, s);
  67         color_fprintf_ln(s->fp, c, "# Unmerged paths:");
  68         if (!s->is_initial)
  69                 color_fprintf_ln(s->fp, c, "#   (use \"git reset %s <file>...\" to unstage)", s->reference);
  70         else
  71                 color_fprintf_ln(s->fp, c, "#   (use \"git rm --cached <file>...\" to unstage)");
  72         color_fprintf_ln(s->fp, c, "#   (use \"git add <file>...\" to mark resolution)");
  73         color_fprintf_ln(s->fp, c, "#");
  74 }
  75
  76 static void wt_status_print_cached_header(struct wt_status *s)
  77 {
  78         const char *c = color(WT_STATUS_HEADER, s);
  79         color_fprintf_ln(s->fp, c, "# Changes to be committed:");
  80         if (!s->is_initial) {
  81                 color_fprintf_ln(s->fp, c, "#   (use \"git reset %s <file>...\" to unstage)", s->reference);
  82         } else {
  83                 color_fprintf_ln(s->fp, c, "#   (use \"git rm --cached <file>...\" to unstage)");
  84         }
  85         color_fprintf_ln(s->fp, c, "#");
  86 }
  87
  88 static void wt_status_print_dirty_header(struct wt_status *s,
  89                                          int has_deleted)
  90 {
  91         const char *c = color(WT_STATUS_HEADER, s);
  92         color_fprintf_ln(s->fp, c, "# Changed but not updated:");
  93         if (!has_deleted)
  94                 color_fprintf_ln(s->fp, c, "#   (use \"git add <file>...\" to update what will be committed)");
  95         else
  96                 color_fprintf_ln(s->fp, c, "#   (use \"git add/rm <file>...\" to update what will be committed)");
  97         color_fprintf_ln(s->fp, c, "#   (use \"git checkout -- <file>...\" to discard changes in working directory)");
  98         color_fprintf_ln(s->fp, c, "#");
  99 }
 100
 101 static void wt_status_print_untracked_header(struct wt_status *s)
 102 {
 103         const char *c = color(WT_STATUS_HEADER, s);
 104         color_fprintf_ln(s->fp, c, "# Untracked files:");
 105         color_fprintf_ln(s->fp, c, "#   (use \"git add <file>...\" to include in what will be committed)");
 106         color_fprintf_ln(s->fp, c, "#");
 107 }
 108
 109 static void wt_status_print_trailer(struct wt_status *s)
 110 {
 111         color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "#");
 112 }
 113
 114 #define quote_path quote_path_relative
 115
 116 static void wt_status_print_unmerged_data(struct wt_status *s,
 117                                           struct string_list_item *it)
 118 {
 119         const char *c = color(WT_STATUS_UNMERGED, s);
 120         struct wt_status_change_data *d = it->util;
 121         struct strbuf onebuf = STRBUF_INIT;
 122         const char *one, *how = "bug";
 123
 124         one = quote_path(it->string, -1, &onebuf, s->prefix);
 125         color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "#\t");
 126         switch (d->stagemask) {
 127         case 1: how = "both deleted:"; break;
 128         case 2: how = "added by us:"; break;
 129         case 3: how = "deleted by them:"; break;
 130         case 4: how = "added by them:"; break;
 131         case 5: how = "deleted by us:"; break;
 132         case 6: how = "both added:"; break;
 133         case 7: how = "both modified:"; break;
 134         }
 135         color_fprintf(s->fp, c, "%-20s%s\n", how, one);
 136         strbuf_release(&onebuf);
 137 }
 138
 139 static void wt_status_print_change_data(struct wt_status *s,
 140                                         int change_type,
 141                                         struct string_list_item *it)
 142 {
 143         struct wt_status_change_data *d = it->util;
 144         const char *c = color(change_type, s);
 145         int status = status;
 146         char *one_name;
 147         char *two_name;
 148         const char *one, *two;
 149         struct strbuf onebuf = STRBUF_INIT, twobuf = STRBUF_INIT;
 150
 151         one_name = two_name = it->string;
 152         switch (change_type) {
 153         case WT_STATUS_UPDATED:
 154                 status = d->index_status;
 155                 if (d->head_path)
 156                         one_name = d->head_path;
 157                 break;
 158         case WT_STATUS_CHANGED:
 159                 status = d->worktree_status;
 160                 break;
 161         }
 162
 163         one = quote_path(one_name, -1, &onebuf, s->prefix);
 164         two = quote_path(two_name, -1, &twobuf, s->prefix);
 165
 166         color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "#\t");
 167         switch (status) {
 168         case DIFF_STATUS_ADDED:
 169                 color_fprintf(s->fp, c, "new file:   %s", one);
 170                 break;
 171         case DIFF_STATUS_COPIED:
 172                 color_fprintf(s->fp, c, "copied:     %s -> %s", one, two);
 173                 break;
 174         case DIFF_STATUS_DELETED:
 175                 color_fprintf(s->fp, c, "deleted:    %s", one);
 176                 break;
 177         case DIFF_STATUS_MODIFIED:
 178                 color_fprintf(s->fp, c, "modified:   %s", one);
 179                 break;
 180         case DIFF_STATUS_RENAMED:
 181                 color_fprintf(s->fp, c, "renamed:    %s -> %s", one, two);
 182                 break;
 183         case DIFF_STATUS_TYPE_CHANGED:
 184                 color_fprintf(s->fp, c, "typechange: %s", one);
 185                 break;
 186         case DIFF_STATUS_UNKNOWN:
 187                 color_fprintf(s->fp, c, "unknown:    %s", one);
 188                 break;
 189         case DIFF_STATUS_UNMERGED:
 190                 color_fprintf(s->fp, c, "unmerged:   %s", one);
 191                 break;
 192         default:
 193                 die("bug: unhandled diff status %c", status);
 194         }
 195         fprintf(s->fp, "\n");
 196         strbuf_release(&onebuf);
 197         strbuf_release(&twobuf);
 198 }
 199
 200 static void wt_status_collect_changed_cb(struct diff_queue_struct *q,
 201                                          struct diff_options *options,
 202                                          void *data)
 203 {
 204         struct wt_status *s = data;
 205         int i;
 206
 207         if (!q->nr)
 208                 return;
 209         s->workdir_dirty = 1;
 210         for (i = 0; i < q->nr; i++) {
 211                 struct diff_filepair *p;
 212                 struct string_list_item *it;
 213                 struct wt_status_change_data *d;
 214
 215                 p = q->queue[i];
 216                 it = string_list_insert(p->one->path, &s->change);
 217                 d = it->util;
 218                 if (!d) {
 219                         d = xcalloc(1, sizeof(*d));
 220                         it->util = d;
 221                 }
 222                 if (!d->worktree_status)
 223                         d->worktree_status = p->status;
 224         }
 225 }
 226
 227 static int unmerged_mask(const char *path)
 228 {
 229         int pos, mask;
 230         struct cache_entry *ce;
 231
 232         pos = cache_name_pos(path, strlen(path));
 233         if (0 <= pos)
 234                 return 0;
 235
 236         mask = 0;
 237         pos = -pos-1;
 238         while (pos < active_nr) {
 239                 ce = active_cache[pos++];
 240                 if (strcmp(ce->name, path) || !ce_stage(ce))
 241                         break;
 242                 mask |= (1 << (ce_stage(ce) - 1));
 243         }
 244         return mask;
 245 }
 246
 247 static void wt_status_collect_updated_cb(struct diff_queue_struct *q,
 248                                          struct diff_options *options,
 249                                          void *data)
 250 {
 251         struct wt_status *s = data;
 252         int i;
 253
 254         for (i = 0; i < q->nr; i++) {
 255                 struct diff_filepair *p;
 256                 struct string_list_item *it;
 257                 struct wt_status_change_data *d;
 258
 259                 p = q->queue[i];
 260                 it = string_list_insert(p->two->path, &s->change);
 261                 d = it->util;
 262                 if (!d) {
 263                         d = xcalloc(1, sizeof(*d));
 264                         it->util = d;
 265                 }
 266                 if (!d->index_status)
 267                         d->index_status = p->status;
 268                 switch (p->status) {
 269                 case DIFF_STATUS_COPIED:
 270                 case DIFF_STATUS_RENAMED:
 271                         d->head_path = xstrdup(p->one->path);
 272                         break;
 273                 case DIFF_STATUS_UNMERGED:
 274                         d->stagemask = unmerged_mask(p->two->path);
 275                         break;
 276                 }
 277         }
 278 }
 279
 280 static void wt_status_collect_changes_worktree(struct wt_status *s)
 281 {
 282         struct rev_info rev;
 283
 284         init_revisions(&rev, NULL);
 285         setup_revisions(0, NULL, &rev, NULL);
 286         rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 287         rev.diffopt.format_callback = wt_status_collect_changed_cb;
 288         rev.diffopt.format_callback_data = s;
 289         run_diff_files(&rev, 0);
 290 }
 291
 292 static void wt_status_collect_changes_index(struct wt_status *s)
 293 {
 294         struct rev_info rev;
 295
 296         init_revisions(&rev, NULL);
 297         setup_revisions(0, NULL, &rev,
 298                 s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference);
 299         rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 300         rev.diffopt.format_callback = wt_status_collect_updated_cb;
 301         rev.diffopt.format_callback_data = s;
 302         rev.diffopt.detect_rename = 1;
 303         rev.diffopt.rename_limit = 200;
 304         rev.diffopt.break_opt = 0;
 305         run_diff_index(&rev, 1);
 306 }
 307
 308 static void wt_status_collect_changes_initial(struct wt_status *s)
 309 {
 310         int i;
 311
 312         for (i = 0; i < active_nr; i++) {
 313                 struct string_list_item *it;
 314                 struct wt_status_change_data *d;
 315                 struct cache_entry *ce = active_cache[i];
 316
 317                 it = string_list_insert(ce->name, &s->change);
 318                 d = it->util;
 319                 if (!d) {
 320                         d = xcalloc(1, sizeof(*d));
 321                         it->util = d;
 322                 }
 323                 if (ce_stage(ce)) {
 324                         d->index_status = DIFF_STATUS_UNMERGED;
 325                         d->stagemask |= (1 << (ce_stage(ce) - 1));
 326                 }
 327                 else
 328                         d->index_status = DIFF_STATUS_ADDED;
 329         }
 330 }
 331
 332 void wt_status_collect_changes(struct wt_status *s)
 333 {
 334         wt_status_collect_changes_worktree(s);
 335
 336         if (s->is_initial)
 337                 wt_status_collect_changes_initial(s);
 338         else
 339                 wt_status_collect_changes_index(s);
 340 }
 341
 342 static void wt_status_print_unmerged(struct wt_status *s)
 343 {
 344         int shown_header = 0;
 345         int i;
 346
 347         for (i = 0; i < s->change.nr; i++) {
 348                 struct wt_status_change_data *d;
 349                 struct string_list_item *it;
 350                 it = &(s->change.items[i]);
 351                 d = it->util;
 352                 if (!d->stagemask)
 353                         continue;
 354                 if (!shown_header) {
 355                         wt_status_print_unmerged_header(s);
 356                         shown_header = 1;
 357                 }
 358                 wt_status_print_unmerged_data(s, it);
 359         }
 360         if (shown_header)
 361                 wt_status_print_trailer(s);
 362
 363 }
 364
 365 static void wt_status_print_updated(struct wt_status *s)
 366 {
 367         int shown_header = 0;
 368         int i;
 369
 370         for (i = 0; i < s->change.nr; i++) {
 371                 struct wt_status_change_data *d;
 372                 struct string_list_item *it;
 373                 it = &(s->change.items[i]);
 374                 d = it->util;
 375                 if (!d->index_status ||
 376                     d->index_status == DIFF_STATUS_UNMERGED)
 377                         continue;
 378                 if (!shown_header) {
 379                         wt_status_print_cached_header(s);
 380                         s->commitable = 1;
 381                         shown_header = 1;
 382                 }
 383                 wt_status_print_change_data(s, WT_STATUS_UPDATED, it);
 384         }
 385         if (shown_header)
 386                 wt_status_print_trailer(s);
 387 }
 388
 389 /*
 390  * -1 : has delete
 391  *  0 : no change
 392  *  1 : some change but no delete
 393  */
 394 static int wt_status_check_worktree_changes(struct wt_status *s)
 395 {
 396         int i;
 397         int changes = 0;
 398
 399         for (i = 0; i < s->change.nr; i++) {
 400                 struct wt_status_change_data *d;
 401                 d = s->change.items[i].util;
 402                 if (!d->worktree_status ||
 403                     d->worktree_status == DIFF_STATUS_UNMERGED)
 404                         continue;
 405                 changes = 1;
 406                 if (d->worktree_status == DIFF_STATUS_DELETED)
 407                         return -1;
 408         }
 409         return changes;
 410 }
 411
 412 static void wt_status_print_changed(struct wt_status *s)
 413 {
 414         int i;
 415         int worktree_changes = wt_status_check_worktree_changes(s);
 416
 417         if (!worktree_changes)
 418                 return;
 419
 420         wt_status_print_dirty_header(s, worktree_changes < 0);
 421
 422         for (i = 0; i < s->change.nr; i++) {
 423                 struct wt_status_change_data *d;
 424                 struct string_list_item *it;
 425                 it = &(s->change.items[i]);
 426                 d = it->util;
 427                 if (!d->worktree_status ||
 428                     d->worktree_status == DIFF_STATUS_UNMERGED)
 429                         continue;
 430                 wt_status_print_change_data(s, WT_STATUS_CHANGED, it);
 431         }
 432         wt_status_print_trailer(s);
 433 }
 434
 435 static void wt_status_print_submodule_summary(struct wt_status *s)
 436 {
 437         struct child_process sm_summary;
 438         char summary_limit[64];
 439         char index[PATH_MAX];
 440         const char *env[] = { index, NULL };
 441         const char *argv[] = {
 442                 "submodule",
 443                 "summary",
 444                 "--cached",
 445                 "--for-status",
 446                 "--summary-limit",
 447                 summary_limit,
 448                 s->amend ? "HEAD^" : "HEAD",
 449                 NULL
 450         };
 451
 452         sprintf(summary_limit, "%d", s->submodule_summary);
 453         snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", s->index_file);
 454
 455         memset(&sm_summary, 0, sizeof(sm_summary));
 456         sm_summary.argv = argv;
 457         sm_summary.env = env;
 458         sm_summary.git_cmd = 1;
 459         sm_summary.no_stdin = 1;
 460         fflush(s->fp);
 461         sm_summary.out = dup(fileno(s->fp));    /* run_command closes it */
 462         run_command(&sm_summary);
 463 }
 464
 465 static void wt_status_print_untracked(struct wt_status *s)
 466 {
 467         struct dir_struct dir;
 468         int i;
 469         int shown_header = 0;
 470         struct strbuf buf = STRBUF_INIT;
 471
 472         memset(&dir, 0, sizeof(dir));
 473         if (s->show_untracked_files != SHOW_ALL_UNTRACKED_FILES)
 474                 dir.flags |=
 475                         DIR_SHOW_OTHER_DIRECTORIES | DIR_HIDE_EMPTY_DIRECTORIES;
 476         setup_standard_excludes(&dir);
 477
 478         fill_directory(&dir, NULL);
 479         for(i = 0; i < dir.nr; i++) {
 480                 struct dir_entry *ent = dir.entries[i];
 481                 if (!cache_name_is_other(ent->name, ent->len))
 482                         continue;
 483                 if (!shown_header) {
 484                         s->workdir_untracked = 1;
 485                         wt_status_print_untracked_header(s);
 486                         shown_header = 1;
 487                 }
 488                 color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "#\t");
 489                 color_fprintf_ln(s->fp, color(WT_STATUS_UNTRACKED, s), "%s",
 490                                 quote_path(ent->name, ent->len,
 491                                         &buf, s->prefix));
 492         }
 493         strbuf_release(&buf);
 494 }
 495
 496 static void wt_status_print_verbose(struct wt_status *s)
 497 {
 498         struct rev_info rev;
 499
 500         init_revisions(&rev, NULL);
 501         DIFF_OPT_SET(&rev.diffopt, ALLOW_TEXTCONV);
 502         setup_revisions(0, NULL, &rev,
 503                 s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference);
 504         rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
 505         rev.diffopt.detect_rename = 1;
 506         rev.diffopt.file = s->fp;
 507         rev.diffopt.close_file = 0;
 508         /*
 509          * If we're not going to stdout, then we definitely don't
 510          * want color, since we are going to the commit message
 511          * file (and even the "auto" setting won't work, since it
 512          * will have checked isatty on stdout).
 513          */
 514         if (s->fp != stdout)
 515                 DIFF_OPT_CLR(&rev.diffopt, COLOR_DIFF);
 516         run_diff_index(&rev, 1);
 517 }
 518
 519 static void wt_status_print_tracking(struct wt_status *s)
 520 {
 521         struct strbuf sb = STRBUF_INIT;
 522         const char *cp, *ep;
 523         struct branch *branch;
 524
 525         assert(s->branch && !s->is_initial);
 526         if (prefixcmp(s->branch, "refs/heads/"))
 527                 return;
 528         branch = branch_get(s->branch + 11);
 529         if (!format_tracking_info(branch, &sb))
 530                 return;
 531
 532         for (cp = sb.buf; (ep = strchr(cp, '\n')) != NULL; cp = ep + 1)
 533                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s),
 534                                  "# %.*s", (int)(ep - cp), cp);
 535         color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "#");
 536 }
 537
 538 void wt_status_print(struct wt_status *s)
 539 {
 540         unsigned char sha1[20];
 541         const char *branch_color = color(WT_STATUS_HEADER, s);
 542
 543         s->is_initial = get_sha1(s->reference, sha1) ? 1 : 0;
 544         if (s->branch) {
 545                 const char *on_what = "On branch ";
 546                 const char *branch_name = s->branch;
 547                 if (!prefixcmp(branch_name, "refs/heads/"))
 548                         branch_name += 11;
 549                 else if (!strcmp(branch_name, "HEAD")) {
 550                         branch_name = "";
 551                         branch_color = color(WT_STATUS_NOBRANCH, s);
 552                         on_what = "Not currently on any branch.";
 553                 }
 554                 color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "# ");
 555                 color_fprintf_ln(s->fp, branch_color, "%s%s", on_what, branch_name);
 556                 if (!s->is_initial)
 557                         wt_status_print_tracking(s);
 558         }
 559
 560         wt_status_collect_changes(s);
 561
 562         if (s->is_initial) {
 563                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "#");
 564                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "# Initial commit");
 565                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "#");
 566         }
 567
 568         wt_status_print_unmerged(s);
 569         wt_status_print_updated(s);
 570         wt_status_print_changed(s);
 571         if (s->submodule_summary)
 572                 wt_status_print_submodule_summary(s);
 573         if (s->show_untracked_files)
 574                 wt_status_print_untracked(s);
 575         else if (s->commitable)
 576                  fprintf(s->fp, "# Untracked files not listed (use -u option to show untracked files)\n");
 577
 578         if (s->verbose)
 579                 wt_status_print_verbose(s);
 580         if (!s->commitable) {
 581                 if (s->amend)
 582                         fprintf(s->fp, "# No changes\n");
 583                 else if (s->nowarn)
 584                         ; /* nothing */
 585                 else if (s->workdir_dirty)
 586                         printf("no changes added to commit (use \"git add\" and/or \"git commit -a\")\n");
 587                 else if (s->workdir_untracked)
 588                         printf("nothing added to commit but untracked files present (use \"git add\" to track)\n");
 589                 else if (s->is_initial)
 590                         printf("nothing to commit (create/copy files and use \"git add\" to track)\n");
 591                 else if (!s->show_untracked_files)
 592                         printf("nothing to commit (use -u to show untracked files)\n");
 593                 else
 594                         printf("nothing to commit (working directory clean)\n");
 595         }
 596 }
 597
 598 int git_status_config(const char *k, const char *v, void *cb)
 599 {
 600         struct wt_status *s = cb;
 601
 602         if (!strcmp(k, "status.submodulesummary")) {
 603                 int is_bool;
 604                 s->submodule_summary = git_config_bool_or_int(k, v, &is_bool);
 605                 if (is_bool && s->submodule_summary)
 606                         s->submodule_summary = -1;
 607                 return 0;
 608         }
 609         if (!strcmp(k, "status.color") || !strcmp(k, "color.status")) {
 610                 s->use_color = git_config_colorbool(k, v, -1);
 611                 return 0;
 612         }
 613         if (!prefixcmp(k, "status.color.") || !prefixcmp(k, "color.status.")) {
 614                 int slot = parse_status_slot(k, 13);
 615                 if (!v)
 616                         return config_error_nonbool(k);
 617                 color_parse(v, k, s->color_palette[slot]);
 618                 return 0;
 619         }
 620         if (!strcmp(k, "status.relativepaths")) {
 621                 s->relative_paths = git_config_bool(k, v);
 622                 return 0;
 623         }
 624         if (!strcmp(k, "status.showuntrackedfiles")) {
 625                 if (!v)
 626                         return config_error_nonbool(k);
 627                 else if (!strcmp(v, "no"))
 628                         s->show_untracked_files = SHOW_NO_UNTRACKED_FILES;
 629                 else if (!strcmp(v, "normal"))
 630                         s->show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
 631                 else if (!strcmp(v, "all"))
 632                         s->show_untracked_files = SHOW_ALL_UNTRACKED_FILES;
 633                 else
 634                         return error("Invalid untracked files mode '%s'", v);
 635                 return 0;
 636         }
 637         return git_diff_ui_config(k, v, NULL);
 638 }