Merge branch 'jk/unused-params-final-batch'
[git/git.git] / builtin / write-tree.c
1 /*
2 * GIT - The information manager from hell
3 *
4 * Copyright (C) Linus Torvalds, 2005
5 */
6 #define USE_THE_INDEX_COMPATIBILITY_MACROS
7 #include "builtin.h"
8 #include "cache.h"
9 #include "config.h"
10 #include "tree.h"
11 #include "cache-tree.h"
12 #include "parse-options.h"
13
14 static const char * const write_tree_usage[] = {
15 N_("git write-tree [--missing-ok] [--prefix=<prefix>/]"),
16 NULL
17 };
18
19 int cmd_write_tree(int argc, const char **argv, const char *cmd_prefix)
20 {
21 int flags = 0, ret;
22 const char *tree_prefix = NULL;
23 struct object_id oid;
24 const char *me = "git-write-tree";
25 struct option write_tree_options[] = {
26 OPT_BIT(0, "missing-ok", &flags, N_("allow missing objects"),
27 WRITE_TREE_MISSING_OK),
28 OPT_STRING(0, "prefix", &tree_prefix, N_("<prefix>/"),
29 N_("write tree object for a subdirectory <prefix>")),
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, cmd_prefix, write_tree_options,
39 write_tree_usage, 0);
40
41 ret = write_cache_as_tree(&oid, flags, tree_prefix);
42 switch (ret) {
43 case 0:
44 printf("%s\n", oid_to_hex(&oid));
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, tree_prefix);
54 break;
55 }
56 return ret;
57 }