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);
}
/**
* Appends merge candidates from FETCH_HEAD that are not marked not-for-merge
* into merge_heads.
*/
static void get_merge_heads(struct oid_array *merge_heads)
{
const char *filename = git_path_fetch_head(the_repository);
FILE *fp;
struct strbuf sb = STRBUF_INIT;
struct object_id oid;
fp = xfopen(filename, "r");
while (strbuf_getline_lf(&sb, fp) != EOF) {
if (get_oid_hex(sb.buf, &oid))
continue; /* invalid line: does not start with SHA1 */
if (starts_with(sb.buf + GIT_SHA1_HEXSZ, "\tnot-for-merge\t"))
continue; /* ref is not-for-merge */
oid_array_append(merge_heads, &oid);
}
fclose(fp);
strbuf_release(&sb);
}
