git.oblomov.eu Git - git/blob - builtin-commit.c

   1 /*
   2  * Builtin "git commit"
   3  *
   4  * Copyright (c) 2007 Kristian Høgsberg <krh@redhat.com>
   5  * Based on git-commit.sh by Junio C Hamano and Linus Torvalds
   6  */
   7
   8 #include "cache.h"
   9 #include "cache-tree.h"
  10 #include "color.h"
  11 #include "dir.h"
  12 #include "builtin.h"
  13 #include "diff.h"
  14 #include "diffcore.h"
  15 #include "commit.h"
  16 #include "revision.h"
  17 #include "wt-status.h"
  18 #include "run-command.h"
  19 #include "refs.h"
  20 #include "log-tree.h"
  21 #include "strbuf.h"
  22 #include "utf8.h"
  23 #include "parse-options.h"
  24 #include "string-list.h"
  25 #include "rerere.h"
  26 #include "unpack-trees.h"
  27 #include "quote.h"
  28
  29 static const char * const builtin_commit_usage[] = {
  30         "git commit [options] [--] <filepattern>...",
  31         NULL
  32 };
  33
  34 static const char * const builtin_status_usage[] = {
  35         "git status [options] [--] <filepattern>...",
  36         NULL
  37 };
  38
  39 static unsigned char head_sha1[20], merge_head_sha1[20];
  40 static char *use_message_buffer;
  41 static const char commit_editmsg[] = "COMMIT_EDITMSG";
  42 static struct lock_file index_lock; /* real index */
  43 static struct lock_file false_lock; /* used only for partial commits */
  44 static enum {
  45         COMMIT_AS_IS = 1,
  46         COMMIT_NORMAL,
  47         COMMIT_PARTIAL,
  48 } commit_style;
  49
  50 static const char *logfile, *force_author;
  51 static const char *template_file;
  52 static char *edit_message, *use_message;
  53 static char *author_name, *author_email, *author_date;
  54 static int all, edit_flag, also, interactive, only, amend, signoff;
  55 static int quiet, verbose, no_verify, allow_empty, dry_run;
  56 static char *untracked_files_arg;
  57 /*
  58  * The default commit message cleanup mode will remove the lines
  59  * beginning with # (shell comments) and leading and trailing
  60  * whitespaces (empty lines or containing only whitespaces)
  61  * if editor is used, and only the whitespaces if the message
  62  * is specified explicitly.
  63  */
  64 static enum {
  65         CLEANUP_SPACE,
  66         CLEANUP_NONE,
  67         CLEANUP_ALL,
  68 } cleanup_mode;
  69 static char *cleanup_arg;
  70
  71 static int use_editor = 1, initial_commit, in_merge;
  72 static const char *only_include_assumed;
  73 static struct strbuf message;
  74
  75 static int null_termination;
  76 static enum {
  77         STATUS_FORMAT_LONG,
  78         STATUS_FORMAT_SHORT,
  79         STATUS_FORMAT_PORCELAIN,
  80 } status_format = STATUS_FORMAT_LONG;
  81
  82 static void short_print(struct wt_status *s, int null_termination);
  83
  84 static int opt_parse_m(const struct option *opt, const char *arg, int unset)
  85 {
  86         struct strbuf *buf = opt->value;
  87         if (unset)
  88                 strbuf_setlen(buf, 0);
  89         else {
  90                 strbuf_addstr(buf, arg);
  91                 strbuf_addstr(buf, "\n\n");
  92         }
  93         return 0;
  94 }
  95
  96 static struct option builtin_commit_options[] = {
  97         OPT__QUIET(&quiet),
  98         OPT__VERBOSE(&verbose),
  99         OPT_GROUP("Commit message options"),
 100
 101         OPT_FILENAME('F', "file", &logfile, "read log from file"),
 102         OPT_STRING(0, "author", &force_author, "AUTHOR", "override author for commit"),
 103         OPT_CALLBACK('m', "message", &message, "MESSAGE", "specify commit message", opt_parse_m),
 104         OPT_STRING('c', "reedit-message", &edit_message, "COMMIT", "reuse and edit message from specified commit "),
 105         OPT_STRING('C', "reuse-message", &use_message, "COMMIT", "reuse message from specified commit"),
 106         OPT_BOOLEAN('s', "signoff", &signoff, "add Signed-off-by:"),
 107         OPT_FILENAME('t', "template", &template_file, "use specified template file"),
 108         OPT_BOOLEAN('e', "edit", &edit_flag, "force edit of commit"),
 109
 110         OPT_GROUP("Commit contents options"),
 111         OPT_BOOLEAN('a', "all", &all, "commit all changed files"),
 112         OPT_BOOLEAN('i', "include", &also, "add specified files to index for commit"),
 113         OPT_BOOLEAN(0, "interactive", &interactive, "interactively add files"),
 114         OPT_BOOLEAN('o', "only", &only, "commit only specified files"),
 115         OPT_BOOLEAN('n', "no-verify", &no_verify, "bypass pre-commit hook"),
 116         OPT_BOOLEAN(0, "dry-run", &dry_run, "show what would be committed"),
 117         OPT_SET_INT(0, "short", &status_format, "show status concisely",
 118                     STATUS_FORMAT_SHORT),
 119         OPT_SET_INT(0, "porcelain", &status_format,
 120                     "show porcelain output format", STATUS_FORMAT_PORCELAIN),
 121         OPT_BOOLEAN('z', "null", &null_termination,
 122                     "terminate entries with NUL"),
 123         OPT_BOOLEAN(0, "amend", &amend, "amend previous commit"),
 124         { OPTION_STRING, 'u', "untracked-files", &untracked_files_arg, "mode", "show untracked files, optional modes: all, normal, no. (Default: all)", PARSE_OPT_OPTARG, NULL, (intptr_t)"all" },
 125         OPT_BOOLEAN(0, "allow-empty", &allow_empty, "ok to record an empty change"),
 126         OPT_STRING(0, "cleanup", &cleanup_arg, "default", "how to strip spaces and #comments from message"),
 127
 128         OPT_END()
 129 };
 130
 131 static void rollback_index_files(void)
 132 {
 133         switch (commit_style) {
 134         case COMMIT_AS_IS:
 135                 break; /* nothing to do */
 136         case COMMIT_NORMAL:
 137                 rollback_lock_file(&index_lock);
 138                 break;
 139         case COMMIT_PARTIAL:
 140                 rollback_lock_file(&index_lock);
 141                 rollback_lock_file(&false_lock);
 142                 break;
 143         }
 144 }
 145
 146 static int commit_index_files(void)
 147 {
 148         int err = 0;
 149
 150         switch (commit_style) {
 151         case COMMIT_AS_IS:
 152                 break; /* nothing to do */
 153         case COMMIT_NORMAL:
 154                 err = commit_lock_file(&index_lock);
 155                 break;
 156         case COMMIT_PARTIAL:
 157                 err = commit_lock_file(&index_lock);
 158                 rollback_lock_file(&false_lock);
 159                 break;
 160         }
 161
 162         return err;
 163 }
 164
 165 /*
 166  * Take a union of paths in the index and the named tree (typically, "HEAD"),
 167  * and return the paths that match the given pattern in list.
 168  */
 169 static int list_paths(struct string_list *list, const char *with_tree,
 170                       const char *prefix, const char **pattern)
 171 {
 172         int i;
 173         char *m;
 174
 175         for (i = 0; pattern[i]; i++)
 176                 ;
 177         m = xcalloc(1, i);
 178
 179         if (with_tree)
 180                 overlay_tree_on_cache(with_tree, prefix);
 181
 182         for (i = 0; i < active_nr; i++) {
 183                 struct cache_entry *ce = active_cache[i];
 184                 if (ce->ce_flags & CE_UPDATE)
 185                         continue;
 186                 if (!match_pathspec(pattern, ce->name, ce_namelen(ce), 0, m))
 187                         continue;
 188                 string_list_insert(ce->name, list);
 189         }
 190
 191         return report_path_error(m, pattern, prefix ? strlen(prefix) : 0);
 192 }
 193
 194 static void add_remove_files(struct string_list *list)
 195 {
 196         int i;
 197         for (i = 0; i < list->nr; i++) {
 198                 struct stat st;
 199                 struct string_list_item *p = &(list->items[i]);
 200
 201                 if (!lstat(p->string, &st)) {
 202                         if (add_to_cache(p->string, &st, 0))
 203                                 die("updating files failed");
 204                 } else
 205                         remove_file_from_cache(p->string);
 206         }
 207 }
 208
 209 static void create_base_index(void)
 210 {
 211         struct tree *tree;
 212         struct unpack_trees_options opts;
 213         struct tree_desc t;
 214
 215         if (initial_commit) {
 216                 discard_cache();
 217                 return;
 218         }
 219
 220         memset(&opts, 0, sizeof(opts));
 221         opts.head_idx = 1;
 222         opts.index_only = 1;
 223         opts.merge = 1;
 224         opts.src_index = &the_index;
 225         opts.dst_index = &the_index;
 226
 227         opts.fn = oneway_merge;
 228         tree = parse_tree_indirect(head_sha1);
 229         if (!tree)
 230                 die("failed to unpack HEAD tree object");
 231         parse_tree(tree);
 232         init_tree_desc(&t, tree->buffer, tree->size);
 233         if (unpack_trees(1, &t, &opts))
 234                 exit(128); /* We've already reported the error, finish dying */
 235 }
 236
 237 static char *prepare_index(int argc, const char **argv, const char *prefix, int is_status)
 238 {
 239         int fd;
 240         struct string_list partial;
 241         const char **pathspec = NULL;
 242         int refresh_flags = REFRESH_QUIET;
 243
 244         if (is_status)
 245                 refresh_flags |= REFRESH_UNMERGED;
 246         if (interactive) {
 247                 if (interactive_add(argc, argv, prefix) != 0)
 248                         die("interactive add failed");
 249                 if (read_cache_preload(NULL) < 0)
 250                         die("index file corrupt");
 251                 commit_style = COMMIT_AS_IS;
 252                 return get_index_file();
 253         }
 254
 255         if (*argv)
 256                 pathspec = get_pathspec(prefix, argv);
 257
 258         if (read_cache_preload(pathspec) < 0)
 259                 die("index file corrupt");
 260
 261         /*
 262          * Non partial, non as-is commit.
 263          *
 264          * (1) get the real index;
 265          * (2) update the_index as necessary;
 266          * (3) write the_index out to the real index (still locked);
 267          * (4) return the name of the locked index file.
 268          *
 269          * The caller should run hooks on the locked real index, and
 270          * (A) if all goes well, commit the real index;
 271          * (B) on failure, rollback the real index.
 272          */
 273         if (all || (also && pathspec && *pathspec)) {
 274                 int fd = hold_locked_index(&index_lock, 1);
 275                 add_files_to_cache(also ? prefix : NULL, pathspec, 0);
 276                 refresh_cache(refresh_flags);
 277                 if (write_cache(fd, active_cache, active_nr) ||
 278                     close_lock_file(&index_lock))
 279                         die("unable to write new_index file");
 280                 commit_style = COMMIT_NORMAL;
 281                 return index_lock.filename;
 282         }
 283
 284         /*
 285          * As-is commit.
 286          *
 287          * (1) return the name of the real index file.
 288          *
 289          * The caller should run hooks on the real index, and run
 290          * hooks on the real index, and create commit from the_index.
 291          * We still need to refresh the index here.
 292          */
 293         if (!pathspec || !*pathspec) {
 294                 fd = hold_locked_index(&index_lock, 1);
 295                 refresh_cache(refresh_flags);
 296                 if (write_cache(fd, active_cache, active_nr) ||
 297                     commit_locked_index(&index_lock))
 298                         die("unable to write new_index file");
 299                 commit_style = COMMIT_AS_IS;
 300                 return get_index_file();
 301         }
 302
 303         /*
 304          * A partial commit.
 305          *
 306          * (0) find the set of affected paths;
 307          * (1) get lock on the real index file;
 308          * (2) update the_index with the given paths;
 309          * (3) write the_index out to the real index (still locked);
 310          * (4) get lock on the false index file;
 311          * (5) reset the_index from HEAD;
 312          * (6) update the_index the same way as (2);
 313          * (7) write the_index out to the false index file;
 314          * (8) return the name of the false index file (still locked);
 315          *
 316          * The caller should run hooks on the locked false index, and
 317          * create commit from it.  Then
 318          * (A) if all goes well, commit the real index;
 319          * (B) on failure, rollback the real index;
 320          * In either case, rollback the false index.
 321          */
 322         commit_style = COMMIT_PARTIAL;
 323
 324         if (file_exists(git_path("MERGE_HEAD")))
 325                 die("cannot do a partial commit during a merge.");
 326
 327         memset(&partial, 0, sizeof(partial));
 328         partial.strdup_strings = 1;
 329         if (list_paths(&partial, initial_commit ? NULL : "HEAD", prefix, pathspec))
 330                 exit(1);
 331
 332         discard_cache();
 333         if (read_cache() < 0)
 334                 die("cannot read the index");
 335
 336         fd = hold_locked_index(&index_lock, 1);
 337         add_remove_files(&partial);
 338         refresh_cache(REFRESH_QUIET);
 339         if (write_cache(fd, active_cache, active_nr) ||
 340             close_lock_file(&index_lock))
 341                 die("unable to write new_index file");
 342
 343         fd = hold_lock_file_for_update(&false_lock,
 344                                        git_path("next-index-%"PRIuMAX,
 345                                                 (uintmax_t) getpid()),
 346                                        LOCK_DIE_ON_ERROR);
 347
 348         create_base_index();
 349         add_remove_files(&partial);
 350         refresh_cache(REFRESH_QUIET);
 351
 352         if (write_cache(fd, active_cache, active_nr) ||
 353             close_lock_file(&false_lock))
 354                 die("unable to write temporary index file");
 355
 356         discard_cache();
 357         read_cache_from(false_lock.filename);
 358
 359         return false_lock.filename;
 360 }
 361
 362 static int run_status(FILE *fp, const char *index_file, const char *prefix, int nowarn,
 363                       struct wt_status *s)
 364 {
 365         unsigned char sha1[20];
 366
 367         if (s->relative_paths)
 368                 s->prefix = prefix;
 369
 370         if (amend) {
 371                 s->amend = 1;
 372                 s->reference = "HEAD^1";
 373         }
 374         s->verbose = verbose;
 375         s->index_file = index_file;
 376         s->fp = fp;
 377         s->nowarn = nowarn;
 378         s->is_initial = get_sha1(s->reference, sha1) ? 1 : 0;
 379
 380         wt_status_collect(s);
 381
 382         switch (status_format) {
 383         case STATUS_FORMAT_SHORT:
 384                 short_print(s, null_termination);
 385                 break;
 386         case STATUS_FORMAT_PORCELAIN:
 387                 short_print(s, null_termination);
 388                 break;
 389         case STATUS_FORMAT_LONG:
 390                 wt_status_print(s);
 391                 break;
 392         }
 393
 394         return s->commitable;
 395 }
 396
 397 static int is_a_merge(const unsigned char *sha1)
 398 {
 399         struct commit *commit = lookup_commit(sha1);
 400         if (!commit || parse_commit(commit))
 401                 die("could not parse HEAD commit");
 402         return !!(commit->parents && commit->parents->next);
 403 }
 404
 405 static const char sign_off_header[] = "Signed-off-by: ";
 406
 407 static void determine_author_info(void)
 408 {
 409         char *name, *email, *date;
 410
 411         name = getenv("GIT_AUTHOR_NAME");
 412         email = getenv("GIT_AUTHOR_EMAIL");
 413         date = getenv("GIT_AUTHOR_DATE");
 414
 415         if (use_message) {
 416                 const char *a, *lb, *rb, *eol;
 417
 418                 a = strstr(use_message_buffer, "\nauthor ");
 419                 if (!a)
 420                         die("invalid commit: %s", use_message);
 421
 422                 lb = strstr(a + 8, " <");
 423                 rb = strstr(a + 8, "> ");
 424                 eol = strchr(a + 8, '\n');
 425                 if (!lb || !rb || !eol)
 426                         die("invalid commit: %s", use_message);
 427
 428                 name = xstrndup(a + 8, lb - (a + 8));
 429                 email = xstrndup(lb + 2, rb - (lb + 2));
 430                 date = xstrndup(rb + 2, eol - (rb + 2));
 431         }
 432
 433         if (force_author) {
 434                 const char *lb = strstr(force_author, " <");
 435                 const char *rb = strchr(force_author, '>');
 436
 437                 if (!lb || !rb)
 438                         die("malformed --author parameter");
 439                 name = xstrndup(force_author, lb - force_author);
 440                 email = xstrndup(lb + 2, rb - (lb + 2));
 441         }
 442
 443         author_name = name;
 444         author_email = email;
 445         author_date = date;
 446 }
 447
 448 static int prepare_to_commit(const char *index_file, const char *prefix,
 449                              struct wt_status *s)
 450 {
 451         struct stat statbuf;
 452         int commitable, saved_color_setting;
 453         struct strbuf sb = STRBUF_INIT;
 454         char *buffer;
 455         FILE *fp;
 456         const char *hook_arg1 = NULL;
 457         const char *hook_arg2 = NULL;
 458         int ident_shown = 0;
 459
 460         if (!no_verify && run_hook(index_file, "pre-commit", NULL))
 461                 return 0;
 462
 463         if (message.len) {
 464                 strbuf_addbuf(&sb, &message);
 465                 hook_arg1 = "message";
 466         } else if (logfile && !strcmp(logfile, "-")) {
 467                 if (isatty(0))
 468                         fprintf(stderr, "(reading log message from standard input)\n");
 469                 if (strbuf_read(&sb, 0, 0) < 0)
 470                         die_errno("could not read log from standard input");
 471                 hook_arg1 = "message";
 472         } else if (logfile) {
 473                 if (strbuf_read_file(&sb, logfile, 0) < 0)
 474                         die_errno("could not read log file '%s'",
 475                                   logfile);
 476                 hook_arg1 = "message";
 477         } else if (use_message) {
 478                 buffer = strstr(use_message_buffer, "\n\n");
 479                 if (!buffer || buffer[2] == '\0')
 480                         die("commit has empty message");
 481                 strbuf_add(&sb, buffer + 2, strlen(buffer + 2));
 482                 hook_arg1 = "commit";
 483                 hook_arg2 = use_message;
 484         } else if (!stat(git_path("MERGE_MSG"), &statbuf)) {
 485                 if (strbuf_read_file(&sb, git_path("MERGE_MSG"), 0) < 0)
 486                         die_errno("could not read MERGE_MSG");
 487                 hook_arg1 = "merge";
 488         } else if (!stat(git_path("SQUASH_MSG"), &statbuf)) {
 489                 if (strbuf_read_file(&sb, git_path("SQUASH_MSG"), 0) < 0)
 490                         die_errno("could not read SQUASH_MSG");
 491                 hook_arg1 = "squash";
 492         } else if (template_file && !stat(template_file, &statbuf)) {
 493                 if (strbuf_read_file(&sb, template_file, 0) < 0)
 494                         die_errno("could not read '%s'", template_file);
 495                 hook_arg1 = "template";
 496         }
 497
 498         /*
 499          * This final case does not modify the template message,
 500          * it just sets the argument to the prepare-commit-msg hook.
 501          */
 502         else if (in_merge)
 503                 hook_arg1 = "merge";
 504
 505         fp = fopen(git_path(commit_editmsg), "w");
 506         if (fp == NULL)
 507                 die_errno("could not open '%s'", git_path(commit_editmsg));
 508
 509         if (cleanup_mode != CLEANUP_NONE)
 510                 stripspace(&sb, 0);
 511
 512         if (signoff) {
 513                 struct strbuf sob = STRBUF_INIT;
 514                 int i;
 515
 516                 strbuf_addstr(&sob, sign_off_header);
 517                 strbuf_addstr(&sob, fmt_name(getenv("GIT_COMMITTER_NAME"),
 518                                              getenv("GIT_COMMITTER_EMAIL")));
 519                 strbuf_addch(&sob, '\n');
 520                 for (i = sb.len - 1; i > 0 && sb.buf[i - 1] != '\n'; i--)
 521                         ; /* do nothing */
 522                 if (prefixcmp(sb.buf + i, sob.buf)) {
 523                         if (prefixcmp(sb.buf + i, sign_off_header))
 524                                 strbuf_addch(&sb, '\n');
 525                         strbuf_addbuf(&sb, &sob);
 526                 }
 527                 strbuf_release(&sob);
 528         }
 529
 530         if (fwrite(sb.buf, 1, sb.len, fp) < sb.len)
 531                 die_errno("could not write commit template");
 532
 533         strbuf_release(&sb);
 534
 535         determine_author_info();
 536
 537         /* This checks if committer ident is explicitly given */
 538         git_committer_info(0);
 539         if (use_editor) {
 540                 char *author_ident;
 541                 const char *committer_ident;
 542
 543                 if (in_merge)
 544                         fprintf(fp,
 545                                 "#\n"
 546                                 "# It looks like you may be committing a MERGE.\n"
 547                                 "# If this is not correct, please remove the file\n"
 548                                 "#      %s\n"
 549                                 "# and try again.\n"
 550                                 "#\n",
 551                                 git_path("MERGE_HEAD"));
 552
 553                 fprintf(fp,
 554                         "\n"
 555                         "# Please enter the commit message for your changes.");
 556                 if (cleanup_mode == CLEANUP_ALL)
 557                         fprintf(fp,
 558                                 " Lines starting\n"
 559                                 "# with '#' will be ignored, and an empty"
 560                                 " message aborts the commit.\n");
 561                 else /* CLEANUP_SPACE, that is. */
 562                         fprintf(fp,
 563                                 " Lines starting\n"
 564                                 "# with '#' will be kept; you may remove them"
 565                                 " yourself if you want to.\n"
 566                                 "# An empty message aborts the commit.\n");
 567                 if (only_include_assumed)
 568                         fprintf(fp, "# %s\n", only_include_assumed);
 569
 570                 author_ident = xstrdup(fmt_name(author_name, author_email));
 571                 committer_ident = fmt_name(getenv("GIT_COMMITTER_NAME"),
 572                                            getenv("GIT_COMMITTER_EMAIL"));
 573                 if (strcmp(author_ident, committer_ident))
 574                         fprintf(fp,
 575                                 "%s"
 576                                 "# Author:    %s\n",
 577                                 ident_shown++ ? "" : "#\n",
 578                                 author_ident);
 579                 free(author_ident);
 580
 581                 if (!user_ident_explicitly_given)
 582                         fprintf(fp,
 583                                 "%s"
 584                                 "# Committer: %s\n",
 585                                 ident_shown++ ? "" : "#\n",
 586                                 committer_ident);
 587
 588                 if (ident_shown)
 589                         fprintf(fp, "#\n");
 590
 591                 saved_color_setting = s->use_color;
 592                 s->use_color = 0;
 593                 commitable = run_status(fp, index_file, prefix, 1, s);
 594                 s->use_color = saved_color_setting;
 595         } else {
 596                 unsigned char sha1[20];
 597                 const char *parent = "HEAD";
 598
 599                 if (!active_nr && read_cache() < 0)
 600                         die("Cannot read index");
 601
 602                 if (amend)
 603                         parent = "HEAD^1";
 604
 605                 if (get_sha1(parent, sha1))
 606                         commitable = !!active_nr;
 607                 else
 608                         commitable = index_differs_from(parent, 0);
 609         }
 610
 611         fclose(fp);
 612
 613         if (!commitable && !in_merge && !allow_empty &&
 614             !(amend && is_a_merge(head_sha1))) {
 615                 run_status(stdout, index_file, prefix, 0, s);
 616                 return 0;
 617         }
 618
 619         /*
 620          * Re-read the index as pre-commit hook could have updated it,
 621          * and write it out as a tree.  We must do this before we invoke
 622          * the editor and after we invoke run_status above.
 623          */
 624         discard_cache();
 625         read_cache_from(index_file);
 626         if (!active_cache_tree)
 627                 active_cache_tree = cache_tree();
 628         if (cache_tree_update(active_cache_tree,
 629                               active_cache, active_nr, 0, 0) < 0) {
 630                 error("Error building trees");
 631                 return 0;
 632         }
 633
 634         if (run_hook(index_file, "prepare-commit-msg",
 635                      git_path(commit_editmsg), hook_arg1, hook_arg2, NULL))
 636                 return 0;
 637
 638         if (use_editor) {
 639                 char index[PATH_MAX];
 640                 const char *env[2] = { index, NULL };
 641                 snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", index_file);
 642                 if (launch_editor(git_path(commit_editmsg), NULL, env)) {
 643                         fprintf(stderr,
 644                         "Please supply the message using either -m or -F option.\n");
 645                         exit(1);
 646                 }
 647         }
 648
 649         if (!no_verify &&
 650             run_hook(index_file, "commit-msg", git_path(commit_editmsg), NULL)) {
 651                 return 0;
 652         }
 653
 654         return 1;
 655 }
 656
 657 /*
 658  * Find out if the message in the strbuf contains only whitespace and
 659  * Signed-off-by lines.
 660  */
 661 static int message_is_empty(struct strbuf *sb)
 662 {
 663         struct strbuf tmpl = STRBUF_INIT;
 664         const char *nl;
 665         int eol, i, start = 0;
 666
 667         if (cleanup_mode == CLEANUP_NONE && sb->len)
 668                 return 0;
 669
 670         /* See if the template is just a prefix of the message. */
 671         if (template_file && strbuf_read_file(&tmpl, template_file, 0) > 0) {
 672                 stripspace(&tmpl, cleanup_mode == CLEANUP_ALL);
 673                 if (start + tmpl.len <= sb->len &&
 674                     memcmp(tmpl.buf, sb->buf + start, tmpl.len) == 0)
 675                         start += tmpl.len;
 676         }
 677         strbuf_release(&tmpl);
 678
 679         /* Check if the rest is just whitespace and Signed-of-by's. */
 680         for (i = start; i < sb->len; i++) {
 681                 nl = memchr(sb->buf + i, '\n', sb->len - i);
 682                 if (nl)
 683                         eol = nl - sb->buf;
 684                 else
 685                         eol = sb->len;
 686
 687                 if (strlen(sign_off_header) <= eol - i &&
 688                     !prefixcmp(sb->buf + i, sign_off_header)) {
 689                         i = eol;
 690                         continue;
 691                 }
 692                 while (i < eol)
 693                         if (!isspace(sb->buf[i++]))
 694                                 return 0;
 695         }
 696
 697         return 1;
 698 }
 699
 700 static const char *find_author_by_nickname(const char *name)
 701 {
 702         struct rev_info revs;
 703         struct commit *commit;
 704         struct strbuf buf = STRBUF_INIT;
 705         const char *av[20];
 706         int ac = 0;
 707
 708         init_revisions(&revs, NULL);
 709         strbuf_addf(&buf, "--author=%s", name);
 710         av[++ac] = "--all";
 711         av[++ac] = "-i";
 712         av[++ac] = buf.buf;
 713         av[++ac] = NULL;
 714         setup_revisions(ac, av, &revs, NULL);
 715         prepare_revision_walk(&revs);
 716         commit = get_revision(&revs);
 717         if (commit) {
 718                 strbuf_release(&buf);
 719                 format_commit_message(commit, "%an <%ae>", &buf, DATE_NORMAL);
 720                 return strbuf_detach(&buf, NULL);
 721         }
 722         die("No existing author found with '%s'", name);
 723 }
 724
 725
 726 static void handle_untracked_files_arg(struct wt_status *s)
 727 {
 728         if (!untracked_files_arg)
 729                 ; /* default already initialized */
 730         else if (!strcmp(untracked_files_arg, "no"))
 731                 s->show_untracked_files = SHOW_NO_UNTRACKED_FILES;
 732         else if (!strcmp(untracked_files_arg, "normal"))
 733                 s->show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
 734         else if (!strcmp(untracked_files_arg, "all"))
 735                 s->show_untracked_files = SHOW_ALL_UNTRACKED_FILES;
 736         else
 737                 die("Invalid untracked files mode '%s'", untracked_files_arg);
 738 }
 739
 740 static int parse_and_validate_options(int argc, const char *argv[],
 741                                       const char * const usage[],
 742                                       const char *prefix,
 743                                       struct wt_status *s)
 744 {
 745         int f = 0;
 746
 747         argc = parse_options(argc, argv, prefix, builtin_commit_options, usage,
 748                              0);
 749
 750         if (force_author && !strchr(force_author, '>'))
 751                 force_author = find_author_by_nickname(force_author);
 752
 753         if (logfile || message.len || use_message)
 754                 use_editor = 0;
 755         if (edit_flag)
 756                 use_editor = 1;
 757         if (!use_editor)
 758                 setenv("GIT_EDITOR", ":", 1);
 759
 760         if (get_sha1("HEAD", head_sha1))
 761                 initial_commit = 1;
 762
 763         if (!get_sha1("MERGE_HEAD", merge_head_sha1))
 764                 in_merge = 1;
 765
 766         /* Sanity check options */
 767         if (amend && initial_commit)
 768                 die("You have nothing to amend.");
 769         if (amend && in_merge)
 770                 die("You are in the middle of a merge -- cannot amend.");
 771
 772         if (use_message)
 773                 f++;
 774         if (edit_message)
 775                 f++;
 776         if (logfile)
 777                 f++;
 778         if (f > 1)
 779                 die("Only one of -c/-C/-F can be used.");
 780         if (message.len && f > 0)
 781                 die("Option -m cannot be combined with -c/-C/-F.");
 782         if (edit_message)
 783                 use_message = edit_message;
 784         if (amend && !use_message)
 785                 use_message = "HEAD";
 786         if (use_message) {
 787                 unsigned char sha1[20];
 788                 static char utf8[] = "UTF-8";
 789                 const char *out_enc;
 790                 char *enc, *end;
 791                 struct commit *commit;
 792
 793                 if (get_sha1(use_message, sha1))
 794                         die("could not lookup commit %s", use_message);
 795                 commit = lookup_commit_reference(sha1);
 796                 if (!commit || parse_commit(commit))
 797                         die("could not parse commit %s", use_message);
 798
 799                 enc = strstr(commit->buffer, "\nencoding");
 800                 if (enc) {
 801                         end = strchr(enc + 10, '\n');
 802                         enc = xstrndup(enc + 10, end - (enc + 10));
 803                 } else {
 804                         enc = utf8;
 805                 }
 806                 out_enc = git_commit_encoding ? git_commit_encoding : utf8;
 807
 808                 if (strcmp(out_enc, enc))
 809                         use_message_buffer =
 810                                 reencode_string(commit->buffer, out_enc, enc);
 811
 812                 /*
 813                  * If we failed to reencode the buffer, just copy it
 814                  * byte for byte so the user can try to fix it up.
 815                  * This also handles the case where input and output
 816                  * encodings are identical.
 817                  */
 818                 if (use_message_buffer == NULL)
 819                         use_message_buffer = xstrdup(commit->buffer);
 820                 if (enc != utf8)
 821                         free(enc);
 822         }
 823
 824         if (!!also + !!only + !!all + !!interactive > 1)
 825                 die("Only one of --include/--only/--all/--interactive can be used.");
 826         if (argc == 0 && (also || (only && !amend)))
 827                 die("No paths with --include/--only does not make sense.");
 828         if (argc == 0 && only && amend)
 829                 only_include_assumed = "Clever... amending the last one with dirty index.";
 830         if (argc > 0 && !also && !only)
 831                 only_include_assumed = "Explicit paths specified without -i nor -o; assuming --only paths...";
 832         if (!cleanup_arg || !strcmp(cleanup_arg, "default"))
 833                 cleanup_mode = use_editor ? CLEANUP_ALL : CLEANUP_SPACE;
 834         else if (!strcmp(cleanup_arg, "verbatim"))
 835                 cleanup_mode = CLEANUP_NONE;
 836         else if (!strcmp(cleanup_arg, "whitespace"))
 837                 cleanup_mode = CLEANUP_SPACE;
 838         else if (!strcmp(cleanup_arg, "strip"))
 839                 cleanup_mode = CLEANUP_ALL;
 840         else
 841                 die("Invalid cleanup mode %s", cleanup_arg);
 842
 843         handle_untracked_files_arg(s);
 844
 845         if (all && argc > 0)
 846                 die("Paths with -a does not make sense.");
 847         else if (interactive && argc > 0)
 848                 die("Paths with --interactive does not make sense.");
 849
 850         if (null_termination && status_format == STATUS_FORMAT_LONG)
 851                 status_format = STATUS_FORMAT_PORCELAIN;
 852         if (status_format != STATUS_FORMAT_LONG)
 853                 dry_run = 1;
 854
 855         return argc;
 856 }
 857
 858 static int dry_run_commit(int argc, const char **argv, const char *prefix,
 859                           struct wt_status *s)
 860 {
 861         int commitable;
 862         const char *index_file;
 863
 864         index_file = prepare_index(argc, argv, prefix, 1);
 865         commitable = run_status(stdout, index_file, prefix, 0, s);
 866         rollback_index_files();
 867
 868         return commitable ? 0 : 1;
 869 }
 870
 871 static int parse_status_slot(const char *var, int offset)
 872 {
 873         if (!strcasecmp(var+offset, "header"))
 874                 return WT_STATUS_HEADER;
 875         if (!strcasecmp(var+offset, "updated")
 876                 || !strcasecmp(var+offset, "added"))
 877                 return WT_STATUS_UPDATED;
 878         if (!strcasecmp(var+offset, "changed"))
 879                 return WT_STATUS_CHANGED;
 880         if (!strcasecmp(var+offset, "untracked"))
 881                 return WT_STATUS_UNTRACKED;
 882         if (!strcasecmp(var+offset, "nobranch"))
 883                 return WT_STATUS_NOBRANCH;
 884         if (!strcasecmp(var+offset, "unmerged"))
 885                 return WT_STATUS_UNMERGED;
 886         die("bad config variable '%s'", var);
 887 }
 888
 889 static int git_status_config(const char *k, const char *v, void *cb)
 890 {
 891         struct wt_status *s = cb;
 892
 893         if (!strcmp(k, "status.submodulesummary")) {
 894                 int is_bool;
 895                 s->submodule_summary = git_config_bool_or_int(k, v, &is_bool);
 896                 if (is_bool && s->submodule_summary)
 897                         s->submodule_summary = -1;
 898                 return 0;
 899         }
 900         if (!strcmp(k, "status.color") || !strcmp(k, "color.status")) {
 901                 s->use_color = git_config_colorbool(k, v, -1);
 902                 return 0;
 903         }
 904         if (!prefixcmp(k, "status.color.") || !prefixcmp(k, "color.status.")) {
 905                 int slot = parse_status_slot(k, 13);
 906                 if (!v)
 907                         return config_error_nonbool(k);
 908                 color_parse(v, k, s->color_palette[slot]);
 909                 return 0;
 910         }
 911         if (!strcmp(k, "status.relativepaths")) {
 912                 s->relative_paths = git_config_bool(k, v);
 913                 return 0;
 914         }
 915         if (!strcmp(k, "status.showuntrackedfiles")) {
 916                 if (!v)
 917                         return config_error_nonbool(k);
 918                 else if (!strcmp(v, "no"))
 919                         s->show_untracked_files = SHOW_NO_UNTRACKED_FILES;
 920                 else if (!strcmp(v, "normal"))
 921                         s->show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
 922                 else if (!strcmp(v, "all"))
 923                         s->show_untracked_files = SHOW_ALL_UNTRACKED_FILES;
 924                 else
 925                         return error("Invalid untracked files mode '%s'", v);
 926                 return 0;
 927         }
 928         return git_diff_ui_config(k, v, NULL);
 929 }
 930
 931 #define quote_path quote_path_relative
 932
 933 static void short_unmerged(int null_termination, struct string_list_item *it,
 934                            struct wt_status *s)
 935 {
 936         struct wt_status_change_data *d = it->util;
 937         const char *how = "??";
 938
 939         switch (d->stagemask) {
 940         case 1: how = "DD"; break; /* both deleted */
 941         case 2: how = "AU"; break; /* added by us */
 942         case 3: how = "UD"; break; /* deleted by them */
 943         case 4: how = "UA"; break; /* added by them */
 944         case 5: how = "DU"; break; /* deleted by us */
 945         case 6: how = "AA"; break; /* both added */
 946         case 7: how = "UU"; break; /* both modified */
 947         }
 948         printf("%s ", how);
 949         if (null_termination) {
 950                 fprintf(stdout, "%s%c", it->string, 0);
 951         } else {
 952                 struct strbuf onebuf = STRBUF_INIT;
 953                 const char *one;
 954                 one = quote_path(it->string, -1, &onebuf, s->prefix);
 955                 printf("%s\n", one);
 956                 strbuf_release(&onebuf);
 957         }
 958 }
 959
 960 static void short_status(int null_termination, struct string_list_item *it,
 961                          struct wt_status *s)
 962 {
 963         struct wt_status_change_data *d = it->util;
 964
 965         printf("%c%c ",
 966                !d->index_status ? ' ' : d->index_status,
 967                !d->worktree_status ? ' ' : d->worktree_status);
 968         if (null_termination) {
 969                 fprintf(stdout, "%s%c", it->string, 0);
 970                 if (d->head_path)
 971                         fprintf(stdout, "%s%c", d->head_path, 0);
 972         } else {
 973                 struct strbuf onebuf = STRBUF_INIT;
 974                 const char *one;
 975                 if (d->head_path) {
 976                         one = quote_path(d->head_path, -1, &onebuf, s->prefix);
 977                         printf("%s -> ", one);
 978                         strbuf_release(&onebuf);
 979                 }
 980                 one = quote_path(it->string, -1, &onebuf, s->prefix);
 981                 printf("%s\n", one);
 982                 strbuf_release(&onebuf);
 983         }
 984 }
 985
 986 static void short_untracked(int null_termination, struct string_list_item *it,
 987                             struct wt_status *s)
 988 {
 989         if (null_termination) {
 990                 fprintf(stdout, "?? %s%c", it->string, 0);
 991         } else {
 992                 struct strbuf onebuf = STRBUF_INIT;
 993                 const char *one;
 994                 one = quote_path(it->string, -1, &onebuf, s->prefix);
 995                 printf("?? %s\n", one);
 996                 strbuf_release(&onebuf);
 997         }
 998 }
 999
1000 static void short_print(struct wt_status *s, int null_termination)
1001 {
1002         int i;
1003         for (i = 0; i < s->change.nr; i++) {
1004                 struct wt_status_change_data *d;
1005                 struct string_list_item *it;
1006
1007                 it = &(s->change.items[i]);
1008                 d = it->util;
1009                 if (d->stagemask)
1010                         short_unmerged(null_termination, it, s);
1011                 else
1012                         short_status(null_termination, it, s);
1013         }
1014         for (i = 0; i < s->untracked.nr; i++) {
1015                 struct string_list_item *it;
1016
1017                 it = &(s->untracked.items[i]);
1018                 short_untracked(null_termination, it, s);
1019         }
1020 }
1021
1022 int cmd_status(int argc, const char **argv, const char *prefix)
1023 {
1024         struct wt_status s;
1025         unsigned char sha1[20];
1026         static struct option builtin_status_options[] = {
1027                 OPT__VERBOSE(&verbose),
1028                 OPT_SET_INT('s', "short", &status_format,
1029                             "show status concisely", STATUS_FORMAT_SHORT),
1030                 OPT_SET_INT(0, "porcelain", &status_format,
1031                             "show porcelain output format",
1032                             STATUS_FORMAT_PORCELAIN),
1033                 OPT_BOOLEAN('z', "null", &null_termination,
1034                             "terminate entries with NUL"),
1035                 { OPTION_STRING, 'u', "untracked-files", &untracked_files_arg,
1036                   "mode",
1037                   "show untracked files, optional modes: all, normal, no. (Default: all)",
1038                   PARSE_OPT_OPTARG, NULL, (intptr_t)"all" },
1039                 OPT_END(),
1040         };
1041
1042         if (null_termination && status_format == STATUS_FORMAT_LONG)
1043                 status_format = STATUS_FORMAT_PORCELAIN;
1044
1045         wt_status_prepare(&s);
1046         git_config(git_status_config, &s);
1047         argc = parse_options(argc, argv, prefix,
1048                              builtin_status_options,
1049                              builtin_status_usage, 0);
1050         handle_untracked_files_arg(&s);
1051
1052         if (*argv)
1053                 s.pathspec = get_pathspec(prefix, argv);
1054
1055         read_cache();
1056         refresh_cache(REFRESH_QUIET|REFRESH_UNMERGED);
1057         s.is_initial = get_sha1(s.reference, sha1) ? 1 : 0;
1058         wt_status_collect(&s);
1059
1060         switch (status_format) {
1061         case STATUS_FORMAT_SHORT:
1062                 short_print(&s, null_termination);
1063                 break;
1064         case STATUS_FORMAT_PORCELAIN:
1065                 short_print(&s, null_termination);
1066                 break;
1067         case STATUS_FORMAT_LONG:
1068                 s.verbose = verbose;
1069                 if (s.relative_paths)
1070                         s.prefix = prefix;
1071                 if (s.use_color == -1)
1072                         s.use_color = git_use_color_default;
1073                 if (diff_use_color_default == -1)
1074                         diff_use_color_default = git_use_color_default;
1075                 wt_status_print(&s);
1076                 break;
1077         }
1078         return 0;
1079 }
1080
1081 static void print_summary(const char *prefix, const unsigned char *sha1)
1082 {
1083         struct rev_info rev;
1084         struct commit *commit;
1085         static const char *format = "format:%h] %s";
1086         unsigned char junk_sha1[20];
1087         const char *head = resolve_ref("HEAD", junk_sha1, 0, NULL);
1088
1089         commit = lookup_commit(sha1);
1090         if (!commit)
1091                 die("couldn't look up newly created commit");
1092         if (!commit || parse_commit(commit))
1093                 die("could not parse newly created commit");
1094
1095         init_revisions(&rev, prefix);
1096         setup_revisions(0, NULL, &rev, NULL);
1097
1098         rev.abbrev = 0;
1099         rev.diff = 1;
1100         rev.diffopt.output_format =
1101                 DIFF_FORMAT_SHORTSTAT | DIFF_FORMAT_SUMMARY;
1102
1103         rev.verbose_header = 1;
1104         rev.show_root_diff = 1;
1105         get_commit_format(format, &rev);
1106         rev.always_show_header = 0;
1107         rev.diffopt.detect_rename = 1;
1108         rev.diffopt.rename_limit = 100;
1109         rev.diffopt.break_opt = 0;
1110         diff_setup_done(&rev.diffopt);
1111
1112         printf("[%s%s ",
1113                 !prefixcmp(head, "refs/heads/") ?
1114                         head + 11 :
1115                         !strcmp(head, "HEAD") ?
1116                                 "detached HEAD" :
1117                                 head,
1118                 initial_commit ? " (root-commit)" : "");
1119
1120         if (!log_tree_commit(&rev, commit)) {
1121                 struct strbuf buf = STRBUF_INIT;
1122                 format_commit_message(commit, format + 7, &buf, DATE_NORMAL);
1123                 printf("%s\n", buf.buf);
1124                 strbuf_release(&buf);
1125         }
1126 }
1127
1128 static int git_commit_config(const char *k, const char *v, void *cb)
1129 {
1130         struct wt_status *s = cb;
1131
1132         if (!strcmp(k, "commit.template"))
1133                 return git_config_string(&template_file, k, v);
1134
1135         return git_status_config(k, v, s);
1136 }
1137
1138 int cmd_commit(int argc, const char **argv, const char *prefix)
1139 {
1140         struct strbuf sb = STRBUF_INIT;
1141         const char *index_file, *reflog_msg;
1142         char *nl, *p;
1143         unsigned char commit_sha1[20];
1144         struct ref_lock *ref_lock;
1145         struct commit_list *parents = NULL, **pptr = &parents;
1146         struct stat statbuf;
1147         int allow_fast_forward = 1;
1148         struct wt_status s;
1149
1150         wt_status_prepare(&s);
1151         git_config(git_commit_config, &s);
1152
1153         if (s.use_color == -1)
1154                 s.use_color = git_use_color_default;
1155
1156         argc = parse_and_validate_options(argc, argv, builtin_commit_usage,
1157                                           prefix, &s);
1158         if (dry_run) {
1159                 if (diff_use_color_default == -1)
1160                         diff_use_color_default = git_use_color_default;
1161                 return dry_run_commit(argc, argv, prefix, &s);
1162         }
1163         index_file = prepare_index(argc, argv, prefix, 0);
1164
1165         /* Set up everything for writing the commit object.  This includes
1166            running hooks, writing the trees, and interacting with the user.  */
1167         if (!prepare_to_commit(index_file, prefix, &s)) {
1168                 rollback_index_files();
1169                 return 1;
1170         }
1171
1172         /* Determine parents */
1173         if (initial_commit) {
1174                 reflog_msg = "commit (initial)";
1175         } else if (amend) {
1176                 struct commit_list *c;
1177                 struct commit *commit;
1178
1179                 reflog_msg = "commit (amend)";
1180                 commit = lookup_commit(head_sha1);
1181                 if (!commit || parse_commit(commit))
1182                         die("could not parse HEAD commit");
1183
1184                 for (c = commit->parents; c; c = c->next)
1185                         pptr = &commit_list_insert(c->item, pptr)->next;
1186         } else if (in_merge) {
1187                 struct strbuf m = STRBUF_INIT;
1188                 FILE *fp;
1189
1190                 reflog_msg = "commit (merge)";
1191                 pptr = &commit_list_insert(lookup_commit(head_sha1), pptr)->next;
1192                 fp = fopen(git_path("MERGE_HEAD"), "r");
1193                 if (fp == NULL)
1194                         die_errno("could not open '%s' for reading",
1195                                   git_path("MERGE_HEAD"));
1196                 while (strbuf_getline(&m, fp, '\n') != EOF) {
1197                         unsigned char sha1[20];
1198                         if (get_sha1_hex(m.buf, sha1) < 0)
1199                                 die("Corrupt MERGE_HEAD file (%s)", m.buf);
1200                         pptr = &commit_list_insert(lookup_commit(sha1), pptr)->next;
1201                 }
1202                 fclose(fp);
1203                 strbuf_release(&m);
1204                 if (!stat(git_path("MERGE_MODE"), &statbuf)) {
1205                         if (strbuf_read_file(&sb, git_path("MERGE_MODE"), 0) < 0)
1206                                 die_errno("could not read MERGE_MODE");
1207                         if (!strcmp(sb.buf, "no-ff"))
1208                                 allow_fast_forward = 0;
1209                 }
1210                 if (allow_fast_forward)
1211                         parents = reduce_heads(parents);
1212         } else {
1213                 reflog_msg = "commit";
1214                 pptr = &commit_list_insert(lookup_commit(head_sha1), pptr)->next;
1215         }
1216
1217         /* Finally, get the commit message */
1218         strbuf_reset(&sb);
1219         if (strbuf_read_file(&sb, git_path(commit_editmsg), 0) < 0) {
1220                 int saved_errno = errno;
1221                 rollback_index_files();
1222                 die("could not read commit message: %s", strerror(saved_errno));
1223         }
1224
1225         /* Truncate the message just before the diff, if any. */
1226         if (verbose) {
1227                 p = strstr(sb.buf, "\ndiff --git ");
1228                 if (p != NULL)
1229                         strbuf_setlen(&sb, p - sb.buf + 1);
1230         }
1231
1232         if (cleanup_mode != CLEANUP_NONE)
1233                 stripspace(&sb, cleanup_mode == CLEANUP_ALL);
1234         if (message_is_empty(&sb)) {
1235                 rollback_index_files();
1236                 fprintf(stderr, "Aborting commit due to empty commit message.\n");
1237                 exit(1);
1238         }
1239
1240         if (commit_tree(sb.buf, active_cache_tree->sha1, parents, commit_sha1,
1241                         fmt_ident(author_name, author_email, author_date,
1242                                 IDENT_ERROR_ON_NO_NAME))) {
1243                 rollback_index_files();
1244                 die("failed to write commit object");
1245         }
1246
1247         ref_lock = lock_any_ref_for_update("HEAD",
1248                                            initial_commit ? NULL : head_sha1,
1249                                            0);
1250
1251         nl = strchr(sb.buf, '\n');
1252         if (nl)
1253                 strbuf_setlen(&sb, nl + 1 - sb.buf);
1254         else
1255                 strbuf_addch(&sb, '\n');
1256         strbuf_insert(&sb, 0, reflog_msg, strlen(reflog_msg));
1257         strbuf_insert(&sb, strlen(reflog_msg), ": ", 2);
1258
1259         if (!ref_lock) {
1260                 rollback_index_files();
1261                 die("cannot lock HEAD ref");
1262         }
1263         if (write_ref_sha1(ref_lock, commit_sha1, sb.buf) < 0) {
1264                 rollback_index_files();
1265                 die("cannot update HEAD ref");
1266         }
1267
1268         unlink(git_path("MERGE_HEAD"));
1269         unlink(git_path("MERGE_MSG"));
1270         unlink(git_path("MERGE_MODE"));
1271         unlink(git_path("SQUASH_MSG"));
1272
1273         if (commit_index_files())
1274                 die ("Repository has been updated, but unable to write\n"
1275                      "new_index file. Check that disk is not full or quota is\n"
1276                      "not exceeded, and then \"git reset HEAD\" to recover.");
1277
1278         rerere();
1279         run_hook(get_index_file(), "post-commit", NULL);
1280         if (!quiet)
1281                 print_summary(prefix, commit_sha1);
1282
1283         return 0;
1284 }