shorten_unambiguous_ref: use xsnprintf
[git.git] / builtin / write-tree.c
blobbd0a78aa3c56b7e817c7ddf6fcaba703d6d5fecc
1 /*
2 * GIT - The information manager from hell
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"
13 static const char * const write_tree_usage[] = {
14 N_("git write-tree [--missing-ok] [--prefix=<prefix>/]"),
15 NULL
18 int cmd_write_tree(int argc, const char **argv, const char *unused_prefix)
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()
37 git_config(git_default_config, NULL);
38 argc = parse_options(argc, argv, unused_prefix, write_tree_options,
39 write_tree_usage, 0);
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;
56 return ret;