Subject: [PATCH 15/16] sha1_file: allow map_sha1_file to handle arbitrary object stores

From: Stefan Beller <[email-masked]>
Date: Fri, 16 Feb 2018 09:46:25 -0800

Signed-off-by: Stefan Beller <[email-masked]>
Signed-off-by: Jonathan Nieder <[email-masked]>
---
 cache.h        | 1 -
 object-store.h | 2 ++
 sha1_file.c    | 7 ++++---
 streaming.c    | 5 ++++-
 4 files changed, 10 insertions(+), 5 deletions(-)

diff --git a/cache.h b/cache.h
index 2495c7081d..df29ee72e9 100644
--- a/cache.h
+++ b/cache.h
@@ -1242,7 +1242,6 @@ extern int pretend_sha1_file(void *, unsigned long, enum object_type, unsigned c
 extern int force_object_loose(const unsigned char *sha1, time_t mtime);
 extern int git_open_cloexec(const char *name, int flags);
 #define git_open(name) git_open_cloexec(name, O_RDONLY)
-extern void *map_sha1_file(const unsigned char *sha1, unsigned long *size);
 extern int unpack_sha1_header(git_zstream *stream, unsigned char *map, unsigned long mapsize, void *buffer, unsigned long bufsiz);
 extern int parse_sha1_header(const char *hdr, unsigned long *sizep);
 
diff --git a/object-store.h b/object-store.h
index 5f6beb9d91..30b4cfdbf5 100644
--- a/object-store.h
+++ b/object-store.h
@@ -73,6 +73,8 @@ extern struct packed_git {
  */
 void sha1_file_name(struct raw_object_store *o, struct strbuf *buf, const unsigned char *sha1);
 
+void *map_sha1_file(struct raw_object_store *o, const unsigned char *sha1, unsigned long *size);
+
 void prepare_alt_odb(struct raw_object_store *o);
 
 #endif /* OBJECT_STORE_H */
diff --git a/sha1_file.c b/sha1_file.c
index aeb925a895..4cbff471a2 100644
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -962,9 +962,10 @@ static void *map_sha1_file_1(struct raw_object_store *o, const char *path,
 	return map;
 }
 
-void *map_sha1_file(const unsigned char *sha1, unsigned long *size)
+void *map_sha1_file(struct raw_object_store *o,
+		    const unsigned char *sha1, unsigned long *size)
 {
-	return map_sha1_file_1(&the_repository->objects, NULL, sha1, size);
+	return map_sha1_file_1(o, NULL, sha1, size);
 }
 
 static int unpack_sha1_short_header(git_zstream *stream,
@@ -1186,7 +1187,7 @@ static int sha1_loose_object_info(const unsigned char *sha1,
 		return 0;
 	}
 
-	map = map_sha1_file(sha1, &mapsize);
+	map = map_sha1_file(&the_repository->objects, sha1, &mapsize);
 	if (!map)
 		return -1;
 
diff --git a/streaming.c b/streaming.c
index 5892b50bd8..6888448b12 100644
--- a/streaming.c
+++ b/streaming.c
@@ -3,6 +3,8 @@
  */
 #include "cache.h"
 #include "streaming.h"
+#include "repository.h"
+#include "object-store.h"
 #include "packfile.h"
 
 enum input_source {
@@ -335,7 +337,8 @@ static struct stream_vtbl loose_vtbl = {
 
 static open_method_decl(loose)
 {
-	st->u.loose.mapped = map_sha1_file(sha1, &st->u.loose.mapsize);
+	st->u.loose.mapped = map_sha1_file(&the_repository->objects,
+					   sha1, &st->u.loose.mapsize);
 	if (!st->u.loose.mapped)
 		return -1;
 	if ((unpack_sha1_header(&st->z,
-- 
2.16.1.291.g4437f3f132-goog