strbuf_release(&truname);
}
- if (!strcmp(remote, "FETCH_HEAD") &&
- !access(git_path("FETCH_HEAD"), R_OK)) {
- const char *filename;
- FILE *fp;
- struct strbuf line = STRBUF_INIT;
- char *ptr;
-
- filename = git_path("FETCH_HEAD");
- fp = fopen(filename, "r");
- if (!fp)
- die_errno(_("could not open '%s' for reading"),
- filename);
- strbuf_getline(&line, fp, '\n');
- fclose(fp);
- ptr = strstr(line.buf, "\tnot-for-merge\t");
- if (ptr)
- strbuf_remove(&line, ptr-line.buf+1, 13);
- strbuf_addbuf(msg, &line);
- strbuf_release(&line);
- goto cleanup;
- }
-
if (remote_head->util) {
struct merge_remote_desc *desc;
desc = merge_remote_util(remote_head);
return remoteheads;
}
+static void prepare_merge_message(struct strbuf *merge_names, struct strbuf *merge_msg)
+{
+ struct fmt_merge_msg_opts opts;
+
+ memset(&opts, 0, sizeof(opts));
+ opts.add_title = !have_message;
+ opts.shortlog_len = shortlog_len;
+ opts.credit_people = (0 < option_edit);
+
+ fmt_merge_msg(merge_names, merge_msg, &opts);
+ if (merge_msg->len)
+ strbuf_setlen(merge_msg, merge_msg->len - 1);
+}
+
+static void handle_fetch_head(struct commit_list **remotes, struct strbuf *merge_names)
+{
+ const char *filename;
+ int fd, pos, npos;
+ struct strbuf fetch_head_file = STRBUF_INIT;
+
+ if (!merge_names)
+ merge_names = &fetch_head_file;
+
+ filename = git_path("FETCH_HEAD");
+ fd = open(filename, O_RDONLY);
+ if (fd < 0)
+ die_errno(_("could not open '%s' for reading"), filename);
+
+ if (strbuf_read(merge_names, fd, 0) < 0)
+ die_errno(_("could not read '%s'"), filename);
+ if (close(fd) < 0)
+ die_errno(_("could not close '%s'"), filename);
+
+ for (pos = 0; pos < merge_names->len; pos = npos) {
+ unsigned char sha1[20];
+ char *ptr;
+ struct commit *commit;
+
+ ptr = strchr(merge_names->buf + pos, '\n');
+ if (ptr)
+ npos = ptr - merge_names->buf + 1;
+ else
+ npos = merge_names->len;
+
+ if (npos - pos < 40 + 2 ||
+ get_sha1_hex(merge_names->buf + pos, sha1))
+ commit = NULL; /* bad */
+ else if (memcmp(merge_names->buf + pos + 40, "\t\t", 2))
+ continue; /* not-for-merge */
+ else {
+ char saved = merge_names->buf[pos + 40];
+ merge_names->buf[pos + 40] = '\0';
+ commit = get_merge_parent(merge_names->buf + pos);
+ merge_names->buf[pos + 40] = saved;
+ }
+ if (!commit) {
+ if (ptr)
+ *ptr = '\0';
+ die("not something we can merge in %s: %s",
+ filename, merge_names->buf + pos);
+ }
+ remotes = &commit_list_insert(commit, remotes)->next;
+ }
+
+ if (merge_names == &fetch_head_file)
+ strbuf_release(&fetch_head_file);
+}
+
static struct commit_list *collect_parents(struct commit *head_commit,
int *head_subsumed,
- int argc, const char **argv)
+ int argc, const char **argv,
+ struct strbuf *merge_msg)
{
int i;
struct commit_list *remoteheads = NULL;
struct commit_list **remotes = &remoteheads;
+ struct strbuf merge_names = STRBUF_INIT, *autogen = NULL;
+
+ if (merge_msg && (!have_message || shortlog_len))
+ autogen = &merge_names;
if (head_commit)
remotes = &commit_list_insert(head_commit, remotes)->next;
- for (i = 0; i < argc; i++) {
- struct commit *commit = get_merge_parent(argv[i]);
- if (!commit)
- help_unknown_ref(argv[i], "merge",
- "not something we can merge");
- remotes = &commit_list_insert(commit, remotes)->next;
+
+ if (argc == 1 && !strcmp(argv[0], "FETCH_HEAD")) {
+ handle_fetch_head(remotes, autogen);
+ remoteheads = reduce_parents(head_commit, head_subsumed, remoteheads);
+ } else {
+ for (i = 0; i < argc; i++) {
+ struct commit *commit = get_merge_parent(argv[i]);
+ if (!commit)
+ help_unknown_ref(argv[i], "merge",
+ "not something we can merge");
+ remotes = &commit_list_insert(commit, remotes)->next;
+ }
+ remoteheads = reduce_parents(head_commit, head_subsumed, remoteheads);
+ if (autogen) {
+ struct commit_list *p;
+ for (p = remoteheads; p; p = p->next)
+ merge_name(merge_remote_util(p->item)->name, autogen);
+ }
}
- return reduce_parents(head_commit, head_subsumed, remoteheads);
+ if (autogen) {
+ prepare_merge_message(autogen, merge_msg);
+ strbuf_release(autogen);
+ }
+
+ return remoteheads;
}
int cmd_merge(int argc, const char **argv, const char *prefix)
if (fast_forward == FF_NO)
die(_("Non-fast-forward commit does not make sense into "
"an empty head"));
- remoteheads = collect_parents(head_commit, &head_subsumed, argc, argv);
+ remoteheads = collect_parents(head_commit, &head_subsumed,
+ argc, argv, NULL);
remote_head = remoteheads->item;
if (!remote_head)
die(_("%s - not something we can merge"), argv[0]);
*/
if (!have_message &&
is_old_style_invocation(argc, argv, head_commit->object.sha1)) {
+ warning("old-style 'git merge <msg> HEAD <commit>' is deprecated.");
strbuf_addstr(&merge_msg, argv[0]);
head_arg = argv[1];
argv += 2;
argc -= 2;
- remoteheads = collect_parents(head_commit, &head_subsumed, argc, argv);
+ remoteheads = collect_parents(head_commit, &head_subsumed,
+ argc, argv, NULL);
} else {
- struct strbuf merge_names = STRBUF_INIT;
-
/* We are invoked directly as the first-class UI. */
head_arg = "HEAD";
* the standard merge summary message to be appended
* to the given message.
*/
- remoteheads = collect_parents(head_commit, &head_subsumed, argc, argv);
- for (p = remoteheads; p; p = p->next)
- merge_name(merge_remote_util(p->item)->name, &merge_names);
-
- if (!have_message || shortlog_len) {
- struct fmt_merge_msg_opts opts;
- memset(&opts, 0, sizeof(opts));
- opts.add_title = !have_message;
- opts.shortlog_len = shortlog_len;
- opts.credit_people = (0 < option_edit);
-
- fmt_merge_msg(&merge_names, &merge_msg, &opts);
- if (merge_msg.len)
- strbuf_setlen(&merge_msg, merge_msg.len - 1);
- }
+ remoteheads = collect_parents(head_commit, &head_subsumed,
+ argc, argv, &merge_msg);
}
if (!head_commit || !argc)