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Commit | Line | Data |
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8bc9a0c7 LT |
1 | /* |
2 | * GIT - The information manager from hell | |
3 | * | |
4 | * Copyright (C) Linus Torvalds, 2005 | |
5 | */ | |
e83c5163 | 6 | #include "cache.h" |
8e440259 PE |
7 | #include "commit.h" |
8 | #include "tree.h" | |
6d96ac18 | 9 | #include "builtin.h" |
9e832665 | 10 | #include "utf8.h" |
e83c5163 | 11 | |
e83c5163 | 12 | #define BLOCKING (1ul << 14) |
e83c5163 LT |
13 | |
14 | /* | |
e83c5163 LT |
15 | * FIXME! Share the code with "write-tree.c" |
16 | */ | |
66035a6b | 17 | static void check_valid(unsigned char *sha1, enum object_type expect) |
d0d7cbe7 | 18 | { |
21666f1a NP |
19 | enum object_type type = sha1_object_info(sha1, NULL); |
20 | if (type < 0) | |
5981e099 | 21 | die("%s is not a valid object", sha1_to_hex(sha1)); |
66035a6b | 22 | if (type != expect) |
5981e099 | 23 | die("%s is not a valid '%s' object", sha1_to_hex(sha1), |
66035a6b | 24 | typename(expect)); |
d0d7cbe7 LT |
25 | } |
26 | ||
05207a28 | 27 | static const char commit_tree_usage[] = "git commit-tree <sha1> [-p <sha1>]* < changelog"; |
c5bac17a | 28 | |
ef98c5ca | 29 | static void new_parent(struct commit *parent, struct commit_list **parents_p) |
b389237a | 30 | { |
ef98c5ca JS |
31 | unsigned char *sha1 = parent->object.sha1; |
32 | struct commit_list *parents; | |
33 | for (parents = *parents_p; parents; parents = parents->next) { | |
34 | if (parents->item == parent) { | |
b389237a | 35 | error("duplicate parent %s ignored", sha1_to_hex(sha1)); |
ef98c5ca | 36 | return; |
b389237a | 37 | } |
ef98c5ca | 38 | parents_p = &parents->next; |
b389237a | 39 | } |
ef98c5ca | 40 | commit_list_insert(parent, parents_p); |
b389237a LT |
41 | } |
42 | ||
9e832665 JS |
43 | static const char commit_utf8_warn[] = |
44 | "Warning: commit message does not conform to UTF-8.\n" | |
45 | "You may want to amend it after fixing the message, or set the config\n" | |
46 | "variable i18n.commitencoding to the encoding your project uses.\n"; | |
47 | ||
7b9c0a69 MV |
48 | int commit_tree(const char *msg, unsigned char *tree, |
49 | struct commit_list *parents, unsigned char *ret) | |
e83c5163 | 50 | { |
4b2bced5 | 51 | int encoding_is_utf8; |
7b9c0a69 | 52 | struct strbuf buffer; |
e83c5163 | 53 | |
7b9c0a69 | 54 | check_valid(tree, OBJ_TREE); |
e83c5163 | 55 | |
d2c11a38 | 56 | /* Not having i18n.commitencoding is the same as having utf-8 */ |
677cfed5 | 57 | encoding_is_utf8 = is_encoding_utf8(git_commit_encoding); |
4b2bced5 | 58 | |
f1696ee3 | 59 | strbuf_init(&buffer, 8192); /* should avoid reallocs for the headers */ |
7b9c0a69 | 60 | strbuf_addf(&buffer, "tree %s\n", sha1_to_hex(tree)); |
e83c5163 LT |
61 | |
62 | /* | |
63 | * NOTE! This ordering means that the same exact tree merged with a | |
64 | * different order of parents will be a _different_ changeset even | |
65 | * if everything else stays the same. | |
66 | */ | |
ef98c5ca JS |
67 | while (parents) { |
68 | struct commit_list *next = parents->next; | |
69 | strbuf_addf(&buffer, "parent %s\n", | |
70 | sha1_to_hex(parents->item->object.sha1)); | |
71 | free(parents); | |
72 | parents = next; | |
73 | } | |
e83c5163 LT |
74 | |
75 | /* Person/date information */ | |
774751a8 JH |
76 | strbuf_addf(&buffer, "author %s\n", git_author_info(IDENT_ERROR_ON_NO_NAME)); |
77 | strbuf_addf(&buffer, "committer %s\n", git_committer_info(IDENT_ERROR_ON_NO_NAME)); | |
4b2bced5 | 78 | if (!encoding_is_utf8) |
af6eb822 PH |
79 | strbuf_addf(&buffer, "encoding %s\n", git_commit_encoding); |
80 | strbuf_addch(&buffer, '\n'); | |
e83c5163 LT |
81 | |
82 | /* And add the comment */ | |
7b9c0a69 | 83 | strbuf_addstr(&buffer, msg); |
e83c5163 | 84 | |
9e832665 | 85 | /* And check the encoding */ |
af6eb822 | 86 | if (encoding_is_utf8 && !is_utf8(buffer.buf)) |
9e832665 JS |
87 | fprintf(stderr, commit_utf8_warn); |
88 | ||
7b9c0a69 MV |
89 | return write_sha1_file(buffer.buf, buffer.len, commit_type, ret); |
90 | } | |
91 | ||
92 | int cmd_commit_tree(int argc, const char **argv, const char *prefix) | |
93 | { | |
94 | int i; | |
95 | struct commit_list *parents = NULL; | |
96 | unsigned char tree_sha1[20]; | |
97 | unsigned char commit_sha1[20]; | |
98 | struct strbuf buffer = STRBUF_INIT; | |
99 | ||
100 | git_config(git_default_config, NULL); | |
101 | ||
102 | if (argc < 2) | |
103 | usage(commit_tree_usage); | |
104 | if (get_sha1(argv[1], tree_sha1)) | |
105 | die("Not a valid object name %s", argv[1]); | |
106 | ||
107 | for (i = 2; i < argc; i += 2) { | |
108 | unsigned char sha1[20]; | |
109 | const char *a, *b; | |
110 | a = argv[i]; b = argv[i+1]; | |
111 | if (!b || strcmp(a, "-p")) | |
112 | usage(commit_tree_usage); | |
113 | ||
114 | if (get_sha1(b, sha1)) | |
115 | die("Not a valid object name %s", b); | |
116 | check_valid(sha1, OBJ_COMMIT); | |
117 | new_parent(lookup_commit(sha1), &parents); | |
118 | } | |
119 | ||
120 | if (strbuf_read(&buffer, 0, 0) < 0) | |
7e44c935 | 121 | die("git commit-tree: read returned %s", strerror(errno)); |
7b9c0a69 MV |
122 | |
123 | if (!commit_tree(buffer.buf, tree_sha1, parents, commit_sha1)) { | |
7561d9f5 JH |
124 | printf("%s\n", sha1_to_hex(commit_sha1)); |
125 | return 0; | |
126 | } | |
127 | else | |
128 | return 1; | |
e83c5163 | 129 | } |