2 * GIT - The information manager from hell
4 * Copyright (C) Linus Torvalds, 2005
13 #define BLOCKING (1ul << 14)
16 * FIXME! Share the code with "write-tree.c"
18 static void check_valid(unsigned char *sha1, enum object_type expect)
20 enum object_type type = sha1_object_info(sha1, NULL);
22 die("%s is not a valid object", sha1_to_hex(sha1));
24 die("%s is not a valid '%s' object", sha1_to_hex(sha1),
29 * Having more than two parents is not strange at all, and this is
30 * how multi-way merges are represented.
32 #define MAXPARENT (16)
33 static unsigned char parent_sha1[MAXPARENT][20];
35 static const char commit_tree_usage[] = "git-commit-tree <sha1> [-p <sha1>]* < changelog";
37 static int new_parent(int idx)
40 unsigned char *sha1 = parent_sha1[idx];
41 for (i = 0; i < idx; i++) {
42 if (!hashcmp(parent_sha1[i], sha1)) {
43 error("duplicate parent %s ignored", sha1_to_hex(sha1));
50 static const char commit_utf8_warn[] =
51 "Warning: commit message does not conform to UTF-8.\n"
52 "You may want to amend it after fixing the message, or set the config\n"
53 "variable i18n.commitencoding to the encoding your project uses.\n";
55 int cmd_commit_tree(int argc, const char **argv, const char *prefix)
59 unsigned char tree_sha1[20];
60 unsigned char commit_sha1[20];
64 git_config(git_default_config);
67 usage(commit_tree_usage);
68 if (get_sha1(argv[1], tree_sha1))
69 die("Not a valid object name %s", argv[1]);
71 check_valid(tree_sha1, OBJ_TREE);
72 for (i = 2; i < argc; i += 2) {
74 a = argv[i]; b = argv[i+1];
75 if (!b || strcmp(a, "-p"))
76 usage(commit_tree_usage);
78 if (parents >= MAXPARENT)
79 die("Too many parents (%d max)", MAXPARENT);
80 if (get_sha1(b, parent_sha1[parents]))
81 die("Not a valid object name %s", b);
82 check_valid(parent_sha1[parents], OBJ_COMMIT);
83 if (new_parent(parents))
87 /* Not having i18n.commitencoding is the same as having utf-8 */
88 encoding_is_utf8 = is_encoding_utf8(git_commit_encoding);
91 strbuf_grow(&buffer, 8192); /* should avoid reallocs for the headers */
92 strbuf_addf(&buffer, "tree %s\n", sha1_to_hex(tree_sha1));
95 * NOTE! This ordering means that the same exact tree merged with a
96 * different order of parents will be a _different_ changeset even
97 * if everything else stays the same.
99 for (i = 0; i < parents; i++)
100 strbuf_addf(&buffer, "parent %s\n", sha1_to_hex(parent_sha1[i]));
102 /* Person/date information */
103 strbuf_addf(&buffer, "author %s\n", git_author_info(1));
104 strbuf_addf(&buffer, "committer %s\n", git_committer_info(1));
105 if (!encoding_is_utf8)
106 strbuf_addf(&buffer, "encoding %s\n", git_commit_encoding);
107 strbuf_addch(&buffer, '\n');
109 /* And add the comment */
110 if (strbuf_read(&buffer, 0) < 0)
111 die("git-commit-tree: read returned %s", strerror(errno));
113 /* And check the encoding */
114 if (encoding_is_utf8 && !is_utf8(buffer.buf))
115 fprintf(stderr, commit_utf8_warn);
117 if (!write_sha1_file(buffer.buf, buffer.len, commit_type, commit_sha1)) {
118 printf("%s\n", sha1_to_hex(commit_sha1));