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builtin-commit: use commit_tree()

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First, it adds less code than removes, second this allows us to use
recuce_heads() for parents, so that the parents of a merge will be
always the same with or without a conflict.

Signed-off-by: Miklos Vajna <vmiklos@frugalware.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Miklos Vajna 2008-09-10 22:10:32 +02:00 committed by Junio C Hamano
parent ee20a129de
commit 6bb6b0341a
1 changed files with 16 additions and 51 deletions
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67
builtin-commit.c
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@ -667,14 +667,14 @@ static int prepare_to_commit(const char *index_file, const char *prefix)
}
/*
* Find out if the message starting at position 'start' in the strbuf
* contains only whitespace and Signed-off-by lines.
* Find out if the message in the strbuf contains only whitespace and
* Signed-off-by lines.
*/
static int message_is_empty(struct strbuf *sb, int start)
static int message_is_empty(struct strbuf *sb)
{
struct strbuf tmpl;
const char *nl;
int eol, i;
int eol, i, start = 0;
if (cleanup_mode == CLEANUP_NONE && sb->len)
return 0;
@ -929,34 +929,14 @@ static const char commit_utf8_warn[] =
"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";
static void add_parent(struct strbuf *sb, const unsigned char *sha1)
{
struct object *obj = parse_object(sha1);
const char *parent = sha1_to_hex(sha1);
const char *cp;
if (!obj)
die("Unable to find commit parent %s", parent);
if (obj->type != OBJ_COMMIT)
die("Parent %s isn't a proper commit", parent);
for (cp = sb->buf; cp && (cp = strstr(cp, "\nparent ")); cp += 8) {
if (!memcmp(cp + 8, parent, 40) && cp[48] == '\n') {
error("duplicate parent %s ignored", parent);
return;
}
}
strbuf_addf(sb, "parent %s\n", parent);
}
int cmd_commit(int argc, const char **argv, const char *prefix)
{
int header_len;
struct strbuf sb;
const char *index_file, *reflog_msg;
char *nl, *p;
unsigned char commit_sha1[20];
struct ref_lock *ref_lock;
struct commit_list *parents = NULL, **pptr = &parents;
git_config(git_commit_config, NULL);
@ -971,13 +951,6 @@ int cmd_commit(int argc, const char **argv, const char *prefix)
return 1;
}
/*
* The commit object
*/
strbuf_init(&sb, 0);
strbuf_addf(&sb, "tree %s\n",
sha1_to_hex(active_cache_tree->sha1));
/* Determine parents */
if (initial_commit) {
reflog_msg = "commit (initial)";
@ -991,13 +964,13 @@ int cmd_commit(int argc, const char **argv, const char *prefix)
die("could not parse HEAD commit");
for (c = commit->parents; c; c = c->next)
add_parent(&sb, c->item->object.sha1);
pptr = &commit_list_insert(c->item, pptr)->next;
} else if (in_merge) {
struct strbuf m;
FILE *fp;
reflog_msg = "commit (merge)";
add_parent(&sb, head_sha1);
pptr = &commit_list_insert(lookup_commit(head_sha1), pptr)->next;
strbuf_init(&m, 0);
fp = fopen(git_path("MERGE_HEAD"), "r");
if (fp == NULL)
@ -1007,24 +980,18 @@ int cmd_commit(int argc, const char **argv, const char *prefix)
unsigned char sha1[20];
if (get_sha1_hex(m.buf, sha1) < 0)
die("Corrupt MERGE_HEAD file (%s)", m.buf);
add_parent(&sb, sha1);
pptr = &commit_list_insert(lookup_commit(sha1), pptr)->next;
}
fclose(fp);
strbuf_release(&m);
} else {
reflog_msg = "commit";
strbuf_addf(&sb, "parent %s\n", sha1_to_hex(head_sha1));
pptr = &commit_list_insert(lookup_commit(head_sha1), pptr)->next;
}
strbuf_addf(&sb, "author %s\n",
fmt_ident(author_name, author_email, author_date, IDENT_ERROR_ON_NO_NAME));
strbuf_addf(&sb, "committer %s\n", git_committer_info(IDENT_ERROR_ON_NO_NAME));
if (!is_encoding_utf8(git_commit_encoding))
strbuf_addf(&sb, "encoding %s\n", git_commit_encoding);
strbuf_addch(&sb, '\n');
parents = reduce_heads(parents);
/* Finally, get the commit message */
header_len = sb.len;
strbuf_init(&sb, 0);
if (strbuf_read_file(&sb, git_path(commit_editmsg), 0) < 0) {
rollback_index_files();
die("could not read commit message");
@ -1037,16 +1004,15 @@ int cmd_commit(int argc, const char **argv, const char *prefix)
if (cleanup_mode != CLEANUP_NONE)
stripspace(&sb, cleanup_mode == CLEANUP_ALL);
if (sb.len < header_len || message_is_empty(&sb, header_len)) {
if (message_is_empty(&sb)) {
rollback_index_files();
fprintf(stderr, "Aborting commit due to empty commit message.\n");
exit(1);
}
strbuf_addch(&sb, '\0');
if (is_encoding_utf8(git_commit_encoding) && !is_utf8(sb.buf))
fprintf(stderr, commit_utf8_warn);
if (write_sha1_file(sb.buf, sb.len - 1, commit_type, commit_sha1)) {
if (commit_tree(sb.buf, active_cache_tree->sha1, parents, commit_sha1,
fmt_ident(author_name, author_email, author_date,
IDENT_ERROR_ON_NO_NAME))) {
rollback_index_files();
die("failed to write commit object");
}
@ -1055,12 +1021,11 @@ int cmd_commit(int argc, const char **argv, const char *prefix)
initial_commit ? NULL : head_sha1,
0);
nl = strchr(sb.buf + header_len, '\n');
nl = strchr(sb.buf, '\n');
if (nl)
strbuf_setlen(&sb, nl + 1 - sb.buf);
else
strbuf_addch(&sb, '\n');
strbuf_remove(&sb, 0, header_len);
strbuf_insert(&sb, 0, reflog_msg, strlen(reflog_msg));
strbuf_insert(&sb, strlen(reflog_msg), ": ", 2);