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 "gettext.h"
  10 #include "hex.h"
  11 #include "tree.h"
  12 #include "cache-tree.h"
  13 #include "parse-options.h"
  14
  15 static const char * const write_tree_usage[] = {
  16         N_("git write-tree [--missing-ok] [--prefix=<prefix>/]"),
  17         NULL
  18 };
  19
  20 int cmd_write_tree(int argc,
  21                    const char **argv,
  22                    const char *cmd_prefix,
  23                    struct repository *repo UNUSED)
  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                 {
  35                         .type = OPTION_BIT,
  36                         .long_name = "ignore-cache-tree",
  37                         .value = &flags,
  38                         .help = N_("only useful for debugging"),
  39                         .flags = PARSE_OPT_HIDDEN | PARSE_OPT_NOARG,
  40                         .defval = WRITE_TREE_IGNORE_CACHE_TREE,
  41                 },
  42                 OPT_END()
  43         };
  44
  45         git_config(git_default_config, NULL);
  46         argc = parse_options(argc, argv, cmd_prefix, write_tree_options,
  47                              write_tree_usage, 0);
  48
  49         prepare_repo_settings(the_repository);
  50         the_repository->settings.command_requires_full_index = 0;
  51
  52         ret = write_index_as_tree(&oid, the_repository->index,
  53                                   repo_get_index_file(the_repository),
  54                                   flags, tree_prefix);
  55         switch (ret) {
  56         case 0:
  57                 printf("%s\n", oid_to_hex(&oid));
  58                 break;
  59         case WRITE_TREE_UNREADABLE_INDEX:
  60                 die("%s: error reading the index", me);
  61                 break;
  62         case WRITE_TREE_UNMERGED_INDEX:
  63                 die("%s: error building trees", me);
  64                 break;
  65         case WRITE_TREE_PREFIX_ERROR:
  66                 die("%s: prefix %s not found", me, tree_prefix);
  67                 break;
  68         }
  69         return ret;
  70 }