@@ -136,6 +136,48 @@ static int convert_tag_object(struct strbuf *out,
return 0;
}
+static int convert_commit_object(struct strbuf *out,
+ const struct git_hash_algo *from,
+ const struct git_hash_algo *to,
+ const char *buffer, size_t size)
+{
+ const char *tail = buffer;
+ const char *bufptr = buffer;
+ const int tree_entry_len = from->hexsz + 5;
+ const int parent_entry_len = from->hexsz + 7;
+ struct object_id oid, mapped_oid;
+ const char *p;
+
+ tail += size;
+ if (tail <= bufptr + tree_entry_len + 1 || memcmp(bufptr, "tree ", 5) ||
+ bufptr[tree_entry_len] != '\n')
+ return error("bogus commit object");
+ if (parse_oid_hex_algop(bufptr + 5, &oid, &p, from) < 0)
+ return error("bad tree pointer");
+
+ if (repo_oid_to_algop(the_repository, &oid, to, &mapped_oid))
+ return error("unable to map tree %s in commit object",
+ oid_to_hex(&oid));
+ strbuf_addf(out, "tree %s\n", oid_to_hex(&mapped_oid));
+ bufptr = p + 1;
+
+ while (bufptr + parent_entry_len < tail && !memcmp(bufptr, "parent ", 7)) {
+ if (tail <= bufptr + parent_entry_len + 1 ||
+ parse_oid_hex_algop(bufptr + 7, &oid, &p, from) ||
+ *p != '\n')
+ return error("bad parents in commit");
+
+ if (repo_oid_to_algop(the_repository, &oid, to, &mapped_oid))
+ return error("unable to map parent %s in commit object",
+ oid_to_hex(&oid));
+
+ strbuf_addf(out, "parent %s\n", oid_to_hex(&mapped_oid));
+ bufptr = p + 1;
+ }
+ strbuf_add(out, bufptr, tail - bufptr);
+ return 0;
+}
+
int convert_object_file(struct strbuf *outbuf,
const struct git_hash_algo *from,
const struct git_hash_algo *to,
@@ -150,13 +192,15 @@ int convert_object_file(struct strbuf *outbuf,
BUG("Refusing noop object file conversion");
switch (type) {
+ case OBJ_COMMIT:
+ ret = convert_commit_object(outbuf, from, to, buf, len);
+ break;
case OBJ_TREE:
ret = convert_tree_object(outbuf, from, to, buf, len);
break;
case OBJ_TAG:
ret = convert_tag_object(outbuf, from, to, buf, len);
break;
- case OBJ_COMMIT:
default:
/* Not implemented yet, so fail. */
ret = -1;