mirror of
https://github.com/git/git.git
synced 2024-11-24 10:26:17 +08:00
134 lines
3.6 KiB
C
134 lines
3.6 KiB
C
/*
|
|
* GIT - The information manager from hell
|
|
*
|
|
* Copyright (C) Linus Torvalds, 2005
|
|
*/
|
|
#include "cache.h"
|
|
#include "commit.h"
|
|
#include "tree.h"
|
|
#include "builtin.h"
|
|
#include "utf8.h"
|
|
|
|
/*
|
|
* FIXME! Share the code with "write-tree.c"
|
|
*/
|
|
static void check_valid(unsigned char *sha1, enum object_type expect)
|
|
{
|
|
enum object_type type = sha1_object_info(sha1, NULL);
|
|
if (type < 0)
|
|
die("%s is not a valid object", sha1_to_hex(sha1));
|
|
if (type != expect)
|
|
die("%s is not a valid '%s' object", sha1_to_hex(sha1),
|
|
typename(expect));
|
|
}
|
|
|
|
static const char commit_tree_usage[] = "git commit-tree <sha1> [-p <sha1>]* < changelog";
|
|
|
|
static void new_parent(struct commit *parent, struct commit_list **parents_p)
|
|
{
|
|
unsigned char *sha1 = parent->object.sha1;
|
|
struct commit_list *parents;
|
|
for (parents = *parents_p; parents; parents = parents->next) {
|
|
if (parents->item == parent) {
|
|
error("duplicate parent %s ignored", sha1_to_hex(sha1));
|
|
return;
|
|
}
|
|
parents_p = &parents->next;
|
|
}
|
|
commit_list_insert(parent, parents_p);
|
|
}
|
|
|
|
static const char commit_utf8_warn[] =
|
|
"Warning: commit message does not conform to UTF-8.\n"
|
|
"You may want to amend it after fixing the message, or set the config\n"
|
|
"variable i18n.commitencoding to the encoding your project uses.\n";
|
|
|
|
int commit_tree(const char *msg, unsigned char *tree,
|
|
struct commit_list *parents, unsigned char *ret,
|
|
const char *author)
|
|
{
|
|
int result;
|
|
int encoding_is_utf8;
|
|
struct strbuf buffer;
|
|
|
|
check_valid(tree, OBJ_TREE);
|
|
|
|
/* Not having i18n.commitencoding is the same as having utf-8 */
|
|
encoding_is_utf8 = is_encoding_utf8(git_commit_encoding);
|
|
|
|
strbuf_init(&buffer, 8192); /* should avoid reallocs for the headers */
|
|
strbuf_addf(&buffer, "tree %s\n", sha1_to_hex(tree));
|
|
|
|
/*
|
|
* NOTE! This ordering means that the same exact tree merged with a
|
|
* different order of parents will be a _different_ changeset even
|
|
* if everything else stays the same.
|
|
*/
|
|
while (parents) {
|
|
struct commit_list *next = parents->next;
|
|
strbuf_addf(&buffer, "parent %s\n",
|
|
sha1_to_hex(parents->item->object.sha1));
|
|
free(parents);
|
|
parents = next;
|
|
}
|
|
|
|
/* Person/date information */
|
|
if (!author)
|
|
author = git_author_info(IDENT_ERROR_ON_NO_NAME);
|
|
strbuf_addf(&buffer, "author %s\n", author);
|
|
strbuf_addf(&buffer, "committer %s\n", git_committer_info(IDENT_ERROR_ON_NO_NAME));
|
|
if (!encoding_is_utf8)
|
|
strbuf_addf(&buffer, "encoding %s\n", git_commit_encoding);
|
|
strbuf_addch(&buffer, '\n');
|
|
|
|
/* And add the comment */
|
|
strbuf_addstr(&buffer, msg);
|
|
|
|
/* And check the encoding */
|
|
if (encoding_is_utf8 && !is_utf8(buffer.buf))
|
|
fprintf(stderr, commit_utf8_warn);
|
|
|
|
result = write_sha1_file(buffer.buf, buffer.len, commit_type, ret);
|
|
strbuf_release(&buffer);
|
|
return result;
|
|
}
|
|
|
|
int cmd_commit_tree(int argc, const char **argv, const char *prefix)
|
|
{
|
|
int i;
|
|
struct commit_list *parents = NULL;
|
|
unsigned char tree_sha1[20];
|
|
unsigned char commit_sha1[20];
|
|
struct strbuf buffer = STRBUF_INIT;
|
|
|
|
git_config(git_default_config, NULL);
|
|
|
|
if (argc < 2 || !strcmp(argv[1], "-h"))
|
|
usage(commit_tree_usage);
|
|
if (get_sha1(argv[1], tree_sha1))
|
|
die("Not a valid object name %s", argv[1]);
|
|
|
|
for (i = 2; i < argc; i += 2) {
|
|
unsigned char sha1[20];
|
|
const char *a, *b;
|
|
a = argv[i]; b = argv[i+1];
|
|
if (!b || strcmp(a, "-p"))
|
|
usage(commit_tree_usage);
|
|
|
|
if (get_sha1(b, sha1))
|
|
die("Not a valid object name %s", b);
|
|
check_valid(sha1, OBJ_COMMIT);
|
|
new_parent(lookup_commit(sha1), &parents);
|
|
}
|
|
|
|
if (strbuf_read(&buffer, 0, 0) < 0)
|
|
die_errno("git commit-tree: failed to read");
|
|
|
|
if (!commit_tree(buffer.buf, tree_sha1, parents, commit_sha1, NULL)) {
|
|
printf("%s\n", sha1_to_hex(commit_sha1));
|
|
return 0;
|
|
}
|
|
else
|
|
return 1;
|
|
}
|