sha1_file: convert read_sha1_file to struct object_id

Convert read_sha1_file to take a pointer to struct object_id and rename
it read_object_file.  Do the same for read_sha1_file_extended.

Convert one use in grep.c to use the new function without any other code
change, since the pointer being passed is a void pointer that is already
initialized with a pointer to struct object_id.  Update the declaration
and definitions of the modified functions, and apply the following
semantic patch to convert the remaining callers:

@@
expression E1, E2, E3;
@@
- read_sha1_file(E1.hash, E2, E3)
+ read_object_file(&E1, E2, E3)

@@
expression E1, E2, E3;
@@
- read_sha1_file(E1->hash, E2, E3)
+ read_object_file(E1, E2, E3)

@@
expression E1, E2, E3, E4;
@@
- read_sha1_file_extended(E1.hash, E2, E3, E4)
+ read_object_file_extended(&E1, E2, E3, E4)

@@
expression E1, E2, E3, E4;
@@
- read_sha1_file_extended(E1->hash, E2, E3, E4)
+ read_object_file_extended(E1, E2, E3, E4)

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/tree-walk.c b/tree-walk.c
index b7e504070c..e11b3063af 100644
--- a/tree-walk.c
+++ b/tree-walk.c
@@ -713,8 +713,8 @@ enum follow_symlinks_result get_tree_entry_follow_symlinks(unsigned char *tree_s
 			 */
 			retval = DANGLING_SYMLINK;
 
-			contents = read_sha1_file(current_tree_oid.hash, &type,
-						  &link_len);
+			contents = read_object_file(&current_tree_oid, &type,
+						    &link_len);
 
 			if (!contents)
 				goto done;