builtin/write-tree.c

   1 /*
   2  * GIT - The information manager from hell
   3  *
   4  * Copyright (C) Linus Torvalds, 2005
   5  */
   6 #include "builtin.h"
   7 #include "cache.h"
   8 #include "config.h"
   9 #include "tree.h"
  10 #include "cache-tree.h"
  11 #include "parse-options.h"
  12
  13 static const char * const write_tree_usage[] = {
  14         N_("git write-tree [--missing-ok] [--prefix=<prefix>/]"),
  15         NULL
  16 };
  17
  18 int cmd_write_tree(int argc, const char **argv, const char *unused_prefix)
  19 {
  20         int flags = 0, ret;
  21         const char *prefix = NULL;
  22         unsigned char sha1[20];
  23         const char *me = "git-write-tree";
  24         struct option write_tree_options[] = {
  25                 OPT_BIT(0, "missing-ok", &flags, N_("allow missing objects"),
  26                         WRITE_TREE_MISSING_OK),
  27                 { OPTION_STRING, 0, "prefix", &prefix, N_("<prefix>/"),
  28                   N_("write tree object for a subdirectory <prefix>") ,
  29                   PARSE_OPT_LITERAL_ARGHELP },
  30                 { OPTION_BIT, 0, "ignore-cache-tree", &flags, NULL,
  31                   N_("only useful for debugging"),
  32                   PARSE_OPT_HIDDEN | PARSE_OPT_NOARG, NULL,
  33                   WRITE_TREE_IGNORE_CACHE_TREE },
  34                 OPT_END()
  35         };
  36
  37         git_config(git_default_config, NULL);
  38         argc = parse_options(argc, argv, unused_prefix, write_tree_options,
  39                              write_tree_usage, 0);
  40
  41         ret = write_cache_as_tree(sha1, flags, prefix);
  42         switch (ret) {
  43         case 0:
  44                 printf("%s\n", sha1_to_hex(sha1));
  45                 break;
  46         case WRITE_TREE_UNREADABLE_INDEX:
  47                 die("%s: error reading the index", me);
  48                 break;
  49         case WRITE_TREE_UNMERGED_INDEX:
  50                 die("%s: error building trees", me);
  51                 break;
  52         case WRITE_TREE_PREFIX_ERROR:
  53                 die("%s: prefix %s not found", me, prefix);
  54                 break;
  55         }
  56         return ret;
  57 }