builtin/write-tree.c

   1 /*
   2  * GIT - The information manager from hell
   3  *
   4  * Copyright (C) Linus Torvalds, 2005
   5  */
   6 #define USE_THE_INDEX_VARIABLE
   7 #include "builtin.h"
   8 #include "cache.h"
   9 #include "config.h"
  10 #include "environment.h"
  11 #include "gettext.h"
  12 #include "hex.h"
  13 #include "tree.h"
  14 #include "cache-tree.h"
  15 #include "parse-options.h"
  16 #include "repository.h"
  17
  18 static const char * const write_tree_usage[] = {
  19         N_("git write-tree [--missing-ok] [--prefix=<prefix>/]"),
  20         NULL
  21 };
  22
  23 int cmd_write_tree(int argc, const char **argv, const char *cmd_prefix)
  24 {
  25         int flags = 0, ret;
  26         const char *tree_prefix = NULL;
  27         struct object_id oid;
  28         const char *me = "git-write-tree";
  29         struct option write_tree_options[] = {
  30                 OPT_BIT(0, "missing-ok", &flags, N_("allow missing objects"),
  31                         WRITE_TREE_MISSING_OK),
  32                 OPT_STRING(0, "prefix", &tree_prefix, N_("<prefix>/"),
  33                            N_("write tree object for a subdirectory <prefix>")),
  34                 { OPTION_BIT, 0, "ignore-cache-tree", &flags, NULL,
  35                   N_("only useful for debugging"),
  36                   PARSE_OPT_HIDDEN | PARSE_OPT_NOARG, NULL,
  37                   WRITE_TREE_IGNORE_CACHE_TREE },
  38                 OPT_END()
  39         };
  40
  41         git_config(git_default_config, NULL);
  42         argc = parse_options(argc, argv, cmd_prefix, write_tree_options,
  43                              write_tree_usage, 0);
  44
  45         prepare_repo_settings(the_repository);
  46         the_repository->settings.command_requires_full_index = 0;
  47
  48         ret = write_index_as_tree(&oid, &the_index, get_index_file(), flags,
  49                                   tree_prefix);
  50         switch (ret) {
  51         case 0:
  52                 printf("%s\n", oid_to_hex(&oid));
  53                 break;
  54         case WRITE_TREE_UNREADABLE_INDEX:
  55                 die("%s: error reading the index", me);
  56                 break;
  57         case WRITE_TREE_UNMERGED_INDEX:
  58                 die("%s: error building trees", me);
  59                 break;
  60         case WRITE_TREE_PREFIX_ERROR:
  61                 die("%s: prefix %s not found", me, tree_prefix);
  62                 break;
  63         }
  64         return ret;
  65 }