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