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 flags = 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                        flags |= WRITE_TREE_MISSING_OK;
  26                else if (!prefixcmp(arg, "--prefix="))
  27                        prefix = arg + 9;
  28                else if (!prefixcmp(arg, "--ignore-cache-tree"))
  29                        /*
  30                         * This is only useful for debugging, so I
  31                         * do not bother documenting it.
  32                         */
  33                        flags |= WRITE_TREE_IGNORE_CACHE_TREE;
  34                else
  35                        usage(write_tree_usage);
  36                argc--; argv++;
  37        }
  38
  39        if (argc > 2)
  40                die("too many options");
  41
  42        ret = write_cache_as_tree(sha1, flags, prefix);
  43        switch (ret) {
  44        case 0:
  45                printf("%s\n", sha1_to_hex(sha1));
  46                break;
  47        case WRITE_TREE_UNREADABLE_INDEX:
  48                die("%s: error reading the index", me);
  49                break;
  50        case WRITE_TREE_UNMERGED_INDEX:
  51                die("%s: error building trees", me);
  52                break;
  53        case WRITE_TREE_PREFIX_ERROR:
  54                die("%s: prefix %s not found", me, prefix);
  55                break;
  56        }
  57        return ret;
  58}