gitk: Second try to work around the command line limit on Windows
[git/dscho.git] / builtin / commit-tree.c
blob87f0591c2f68a03e06c73b352282426b803450ba
1 /*
2 * GIT - The information manager from hell
4 * Copyright (C) Linus Torvalds, 2005
5 */
6 #include "cache.h"
7 #include "commit.h"
8 #include "tree.h"
9 #include "builtin.h"
10 #include "utf8.h"
12 static const char commit_tree_usage[] = "git commit-tree <sha1> [-p <sha1>]* < changelog";
14 static void new_parent(struct commit *parent, struct commit_list **parents_p)
16 unsigned char *sha1 = parent->object.sha1;
17 struct commit_list *parents;
18 for (parents = *parents_p; parents; parents = parents->next) {
19 if (parents->item == parent) {
20 error("duplicate parent %s ignored", sha1_to_hex(sha1));
21 return;
23 parents_p = &parents->next;
25 commit_list_insert(parent, parents_p);
28 int cmd_commit_tree(int argc, const char **argv, const char *prefix)
30 int i;
31 struct commit_list *parents = NULL;
32 unsigned char tree_sha1[20];
33 unsigned char commit_sha1[20];
34 struct strbuf buffer = STRBUF_INIT;
36 git_config(git_default_config, NULL);
38 if (argc < 2 || !strcmp(argv[1], "-h"))
39 usage(commit_tree_usage);
40 if (get_sha1(argv[1], tree_sha1))
41 die("Not a valid object name %s", argv[1]);
43 for (i = 2; i < argc; i += 2) {
44 unsigned char sha1[20];
45 const char *a, *b;
46 a = argv[i]; b = argv[i+1];
47 if (!b || strcmp(a, "-p"))
48 usage(commit_tree_usage);
50 if (get_sha1(b, sha1))
51 die("Not a valid object name %s", b);
52 assert_sha1_type(sha1, OBJ_COMMIT);
53 new_parent(lookup_commit(sha1), &parents);
56 if (strbuf_read(&buffer, 0, 0) < 0)
57 die_errno("git commit-tree: failed to read");
59 if (!commit_tree(buffer.buf, tree_sha1, parents, commit_sha1, NULL)) {
60 printf("%s\n", sha1_to_hex(commit_sha1));
61 return 0;
63 else
64 return 1;