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[PATCH 012/194] sha1_file: add repository argument to map_sha1_file_1

Add a repository argument to allow the map_sha1_file_1 caller to be
more specific about which repository to act on. This is a small
mechanical change; it doesn't change the implementation to handle
repositories other than the_repository yet.

As with the previous commits, use a macro to catch callers passing a
repository other than the_repository at compile time.

Signed-off-by: Stefan Beller <sbeller@xxxxxxxxxx>
Signed-off-by: Jonathan Nieder <jrnieder@xxxxxxxxx>
 sha1_file.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/sha1_file.c b/sha1_file.c
index 9fa7243907..24832c4b32 100644
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -931,9 +931,10 @@ static int open_sha1_file_the_repository(const unsigned char *sha1,
  * Map the loose object at "path" if it is not NULL, or the path found by
  * searching for a loose object named "sha1".
-static void *map_sha1_file_1(const char *path,
-			     const unsigned char *sha1,
-			     unsigned long *size)
+#define map_sha1_file_1(r, p, s, si) map_sha1_file_1_##r(p, s, si)
+static void *map_sha1_file_1_the_repository(const char *path,
+					    const unsigned char *sha1,
+					    unsigned long *size)
 	void *map;
 	int fd;
@@ -962,7 +963,7 @@ static void *map_sha1_file_1(const char *path,
 void *map_sha1_file(const unsigned char *sha1, unsigned long *size)
-	return map_sha1_file_1(NULL, sha1, size);
+	return map_sha1_file_1(the_repository, NULL, sha1, size);
 static int unpack_sha1_short_header(git_zstream *stream,
@@ -2174,7 +2175,7 @@ int read_loose_object(const char *path,
 	*contents = NULL;
-	map = map_sha1_file_1(path, NULL, &mapsize);
+	map = map_sha1_file_1(the_repository, path, NULL, &mapsize);
 	if (!map) {
 		error_errno("unable to mmap %s", path);
 		goto out;