[PATCH v3 02/16] init-db: set the_repository->hash_algo early on

From: Han-Wen Nienhuys <redacted>

The reftable backend needs to know the hash algorithm for writing the
initialization hash table.

The initial reftable contains a symref HEAD => "main" (or "master"), which is
agnostic to the size of hash value, but this is an exceptional circumstance, and
the reftable library does not cater for this exceptional. It insists that all
tables in the stack have a consistent format ID for the hash algorithm.

Call set_repo_hash_algo directly after reading out GIT_DEFAULT_HASH.

Signed-off-by: Han-Wen Nienhuys <redacted>
---
 builtin/init-db.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/builtin/init-db.c b/builtin/init-db.c
index 01bc648d41..5c8c67fec6 100644
--- a/builtin/init-db.c
+++ b/builtin/init-db.c

@@ -391,6 +391,7 @@ static void validate_hash_algorithm(struct repository_format *repo_fmt, int hash
 			die(_("unknown hash algorithm '%s'"), env);
 		repo_fmt->hash_algo = env_algo;
 	}
+	repo_set_hash_algo(the_repository, repo_fmt->hash_algo);
 }
 
 int init_db(const char *git_dir, const char *real_git_dir,

-- 
gitgitgadget