builtin/write-tree.c

   1 /*
   2  * GIT - The information manager from hell
   3  *
   4  * Copyright (C) Linus Torvalds, 2005
   5  */
   6 #define USE_THE_REPOSITORY_VARIABLE
   7 #include "builtin.h"
   8 #include "config.h"
   9 #include "environment.h"
  10 #include "gettext.h"
  11 #include "hex.h"
  12 #include "tree.h"
  13 #include "cache-tree.h"
  14 #include "parse-options.h"
  15
  16 static const char * const write_tree_usage[] = {
  17         N_("git write-tree [--missing-ok] [--prefix=<prefix>/]"),
  18         NULL
  19 };
  20
  21 int cmd_write_tree(int argc,
  22                    const char **argv,
  23                    const char *cmd_prefix,
  24                    struct repository *repo UNUSED)
  25 {
  26         int flags = 0, ret;
  27         const char *tree_prefix = NULL;
  28         struct object_id oid;
  29         const char *me = "git-write-tree";
  30         struct option write_tree_options[] = {
  31                 OPT_BIT(0, "missing-ok", &flags, N_("allow missing objects"),
  32                         WRITE_TREE_MISSING_OK),
  33                 OPT_STRING(0, "prefix", &tree_prefix, N_("<prefix>/"),
  34                            N_("write tree object for a subdirectory <prefix>")),
  35                 {
  36                         .type = OPTION_BIT,
  37                         .long_name = "ignore-cache-tree",
  38                         .value = &flags,
  39                         .precision = sizeof(flags),
  40                         .help = N_("only useful for debugging"),
  41                         .flags = PARSE_OPT_HIDDEN | PARSE_OPT_NOARG,
  42                         .defval = WRITE_TREE_IGNORE_CACHE_TREE,
  43                 },
  44                 OPT_END()
  45         };
  46
  47         repo_config(the_repository, git_default_config, NULL);
  48         argc = parse_options(argc, argv, cmd_prefix, write_tree_options,
  49                              write_tree_usage, 0);
  50
  51         prepare_repo_settings(the_repository);
  52         the_repository->settings.command_requires_full_index = 0;
  53
  54         ret = write_index_as_tree(&oid, the_repository->index,
  55                                   repo_get_index_file(the_repository),
  56                                   flags, tree_prefix);
  57         switch (ret) {
  58         case 0:
  59                 printf("%s\n", oid_to_hex(&oid));
  60                 break;
  61         case WRITE_TREE_UNREADABLE_INDEX:
  62                 die("%s: error reading the index", me);
  63                 break;
  64         case WRITE_TREE_UNMERGED_INDEX:
  65                 die("%s: error building trees", me);
  66                 break;
  67         case WRITE_TREE_PREFIX_ERROR:
  68                 die("%s: prefix %s not found", me, tree_prefix);
  69                 break;
  70         }
  71         return ret;
  72 }