diff: convert run_diff_files to struct object_id

Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/diff-lib.c b/diff-lib.c
index 7984ff962fd216a20f50ba8970310adf5b2d98d6..c82b07dc1eb47b439bd56f50fb4d07cc8218d22a 100644 (file)
--- a/diff-lib.c
+++ b/diff-lib.c
@@ -101,7 +101,7 @@ int run_diff_files(struct rev_info *revs, unsigned int option)
                struct cache_entry *ce = active_cache[i];
                int changed;
                unsigned dirty_submodule = 0;
-               const unsigned char *old_sha1, *new_sha1;
+               const struct object_id *old_oid, *new_oid;
 
                if (diff_can_quit_early(&revs->diffopt))
                        break;
@@ -233,12 +233,12 @@ int run_diff_files(struct rev_info *revs, unsigned int option)
                                continue;
                }
                oldmode = ce->ce_mode;
-               old_sha1 = ce->oid.hash;
-               new_sha1 = changed ? null_sha1 : ce->oid.hash;
+               old_oid = &ce->oid;
+               new_oid = changed ? &null_oid : &ce->oid;
                diff_change(&revs->diffopt, oldmode, newmode,
-                           old_sha1, new_sha1,
-                           !is_null_sha1(old_sha1),
-                           !is_null_sha1(new_sha1),
+                           old_oid->hash, new_oid->hash,
+                           !is_null_oid(old_oid),
+                           !is_null_oid(new_oid),
                            ce->name, 0, dirty_submodule);
 
        }