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
  11static const char write_tree_usage[] =
  12"git write-tree [--missing-ok] [--prefix=<prefix>/]";
  13
  14int cmd_write_tree(int argc, const char **argv, const char *unused_prefix)
  15{
  16        int missing_ok = 0, ret;
  17        const char *prefix = NULL;
  18        unsigned char sha1[20];
  19        const char *me = "git-write-tree";
  20
  21        git_config(git_default_config, NULL);
  22        while (1 < argc) {
  23                const char *arg = argv[1];
  24                if (!strcmp(arg, "--missing-ok"))
  25                        missing_ok = 1;
  26                else if (!prefixcmp(arg, "--prefix="))
  27                        prefix = arg + 9;
  28                else
  29                        usage(write_tree_usage);
  30                argc--; argv++;
  31        }
  32
  33        if (argc > 2)
  34                die("too many options");
  35
  36        ret = write_cache_as_tree(sha1, missing_ok, prefix);
  37        switch (ret) {
  38        case 0:
  39                printf("%s\n", sha1_to_hex(sha1));
  40                break;
  41        case WRITE_TREE_UNREADABLE_INDEX:
  42                die("%s: error reading the index", me);
  43                break;
  44        case WRITE_TREE_UNMERGED_INDEX:
  45                die("%s: error building trees; the index is unmerged?", me);
  46                break;
  47        case WRITE_TREE_PREFIX_ERROR:
  48                die("%s: prefix %s not found", me, prefix);
  49                break;
  50        }
  51        return ret;
  52}