object-store: move packed_git and packed_git_mru to object store

In a process with multiple repositories open, packfile accessors
should be associated to a single repository and not shared globally.
Move packed_git and packed_git_mru into the_repository and adjust
callers to reflect this.

[nd: while at there, wrap access to these two fields in get_packed_git()
and get_packed_git_mru(). This allows us to lazily initialize these
fields without caller doing that explicitly]

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/sha1_name.c b/sha1_name.c
index a22a29cda0..ffff7d8710 100644
--- a/sha1_name.c
+++ b/sha1_name.c
@@ -197,7 +197,8 @@ static void find_short_packed_object(struct disambiguate_state *ds)
 	struct packed_git *p;
 
 	prepare_packed_git();
-	for (p = packed_git; p && !ds->ambiguous; p = p->next)
+	for (p = get_packed_git(the_repository); p && !ds->ambiguous;
+	     p = p->next)
 		unique_in_pack(p, ds);
 }
 
@@ -567,7 +568,7 @@ static void find_abbrev_len_packed(struct min_abbrev_data *mad)
 	struct packed_git *p;
 
 	prepare_packed_git();
-	for (p = packed_git; p; p = p->next)
+	for (p = get_packed_git(the_repository); p; p = p->next)
 		find_abbrev_len_for_pack(p, mad);
 }