[v2,06/10] tag.c: use type_from_string_gently() when parsing tags

Commit Message

Ævar Arnfjörð Bjarmason April 20, 2021, 1 p.m. UTC

Change a series of strcmp() to instead use type_from_string_gently()
to get the integer type early, and then use that for comparison.

Signed-off-by: Ævar Arnfjörð Bjarmason <[e-mail]>
---
 tag.c | 19 ++++++++++---------
 1 file changed, 10 insertions(+), 9 deletions(-)

Patch

diff --git a/tag.c b/tag.c
index ed7037256e..1bd81bf1d1 100644
--- a/tag.c
+++ b/tag.c
@@ -140,7 +140,7 @@  void release_tag_memory(struct tag *t)
 int parse_tag_buffer(struct repository *r, struct tag *item, const void *data, unsigned long size)
 {
 	struct object_id oid;
-	char type[20];
+	enum object_type type;
 	const char *bufptr = data;
 	const char *tail = bufptr + size;
 	const char *nl;
@@ -167,23 +167,24 @@  int parse_tag_buffer(struct repository *r, struct tag *item, const void *data, u
 		return -1;
 	bufptr += 5;
 	nl = memchr(bufptr, '\n', tail - bufptr);
-	if (!nl || sizeof(type) <= (nl - bufptr))
+	if (!nl)
+		return -1;
+	type = type_from_string_gently(bufptr, nl - bufptr);
+	if (type < 0)
 		return -1;
-	memcpy(type, bufptr, nl - bufptr);
-	type[nl - bufptr] = '\0';
 	bufptr = nl + 1;
 
-	if (!strcmp(type, blob_type)) {
+	if (type == OBJ_BLOB) {
 		item->tagged = (struct object *)lookup_blob(r, &oid);
-	} else if (!strcmp(type, tree_type)) {
+	} else if (type == OBJ_TREE) {
 		item->tagged = (struct object *)lookup_tree(r, &oid);
-	} else if (!strcmp(type, commit_type)) {
+	} else if (type == OBJ_COMMIT) {
 		item->tagged = (struct object *)lookup_commit(r, &oid);
-	} else if (!strcmp(type, tag_type)) {
+	} else if (type == OBJ_TAG) {
 		item->tagged = (struct object *)lookup_tag(r, &oid);
 	} else {
 		return error("unknown tag type '%s' in %s",
-			     type, oid_to_hex(&item->object.oid));
+			     type_name(type), oid_to_hex(&item->object.oid));
 	}
 
 	if (!item->tagged)