summaryrefslogtreecommitdiff
path: root/builtin/index-pack.c
diff options
context:
space:
mode:
Diffstat (limited to 'builtin/index-pack.c')
-rw-r--r--builtin/index-pack.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/builtin/index-pack.c b/builtin/index-pack.c
index fd968d673d..763b01372a 100644
--- a/builtin/index-pack.c
+++ b/builtin/index-pack.c
@@ -1868,6 +1868,15 @@ int cmd_index_pack(int argc, const char **argv, const char *prefix)
if (!index_name && pack_name)
index_name = derive_filename(pack_name, "pack", "idx", &index_name_buf);
+ /*
+ * Packfiles and indices do not carry enough information to be able to
+ * identify their object hash. So when we are neither in a repository
+ * nor has the user told us which object hash to use we have no other
+ * choice but to guess the object hash.
+ */
+ if (!the_repository->hash_algo)
+ repo_set_hash_algo(the_repository, GIT_HASH_SHA1);
+
opts.flags &= ~(WRITE_REV | WRITE_REV_VERIFY);
if (rev_index) {
opts.flags |= verify ? WRITE_REV_VERIFY : WRITE_REV;