packfile: split up responsibilities of `reprepare_packed_git()`

In `reprepare_packed_git()` we perform a couple of operations:

  - We reload alternate object directories.

  - We clear the loose object cache.

  - We reprepare packfiles.

While the logic is hosted in "packfile.c", it clearly reaches into other
subsystems that aren't related to packfiles.

Split up the responsibility and introduce `odb_reprepare()` which now
becomes responsible for repreparing the whole object database. The
existing `reprepare_packed_git()` function is refactored accordingly and
only cares about reloading the packfile store now.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/odb.h b/odb.h
index 9dd7bb6bc3..ab39e3605d 100644
--- a/odb.h
+++ b/odb.h
@@ -162,6 +162,12 @@ struct object_database *odb_new(struct repository *repo);
 void odb_clear(struct object_database *o);
 
 /*
+ * Clear caches, reload alternates and then reload object sources so that new
+ * objects may become accessible.
+ */
+void odb_reprepare(struct object_database *o);
+
+/*
  * Find source by its object directory path. Returns a `NULL` pointer in case
  * the source could not be found.
  */