From 1053fe829c037c5a725786bac35d05a113c91f55 Mon Sep 17 00:00:00 2001
From: "brian m. carlson" <sandals@crustytoothpaste.net>
Date: Sun, 15 Oct 2017 22:07:06 +0000
Subject: Convert remaining callers of resolve_gitlink_ref to object_id

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

diff --git a/diff-lib.c b/diff-lib.c
index 4e0980c..af4f1b7 100644
--- a/diff-lib.c
+++ b/diff-lib.c
@@ -36,7 +36,7 @@ static int check_removed(const struct cache_entry *ce, struct stat *st)
 	if (has_symlink_leading_path(ce->name, ce_namelen(ce)))
 		return 1;
 	if (S_ISDIR(st->st_mode)) {
-		unsigned char sub[20];
+		struct object_id sub;
 
 		/*
 		 * If ce is already a gitlink, we can have a plain
@@ -50,7 +50,7 @@ static int check_removed(const struct cache_entry *ce, struct stat *st)
 		 * a directory --- the blob was removed!
 		 */
 		if (!S_ISGITLINK(ce->ce_mode) &&
-		    resolve_gitlink_ref(ce->name, "HEAD", sub))
+		    resolve_gitlink_ref(ce->name, "HEAD", sub.hash))
 			return 1;
 	}
 	return 0;
diff --git a/dir.c b/dir.c
index 1d17b80..a4198ba 100644
--- a/dir.c
+++ b/dir.c
@@ -1390,8 +1390,8 @@ static enum path_treatment treat_directory(struct dir_struct *dir,
 		if (dir->flags & DIR_SHOW_OTHER_DIRECTORIES)
 			break;
 		if (!(dir->flags & DIR_NO_GITLINKS)) {
-			unsigned char sha1[20];
-			if (resolve_gitlink_ref(dirname, "HEAD", sha1) == 0)
+			struct object_id oid;
+			if (resolve_gitlink_ref(dirname, "HEAD", oid.hash) == 0)
 				return path_untracked;
 		}
 		return path_recurse;
@@ -2279,10 +2279,10 @@ static int remove_dir_recurse(struct strbuf *path, int flag, int *kept_up)
 	int ret = 0, original_len = path->len, len, kept_down = 0;
 	int only_empty = (flag & REMOVE_DIR_EMPTY_ONLY);
 	int keep_toplevel = (flag & REMOVE_DIR_KEEP_TOPLEVEL);
-	unsigned char submodule_head[20];
+	struct object_id submodule_head;
 
 	if ((flag & REMOVE_DIR_KEEP_NESTED_GIT) &&
-	    !resolve_gitlink_ref(path->buf, "HEAD", submodule_head)) {
+	    !resolve_gitlink_ref(path->buf, "HEAD", submodule_head.hash)) {
 		/* Do not descend and nuke a nested git work tree. */
 		if (kept_up)
 			*kept_up = 1;
diff --git a/read-cache.c b/read-cache.c
index 65f4fe8..131485b 100644
--- a/read-cache.c
+++ b/read-cache.c
@@ -191,7 +191,7 @@ static int ce_compare_link(const struct cache_entry *ce, size_t expected_size)
 
 static int ce_compare_gitlink(const struct cache_entry *ce)
 {
-	unsigned char sha1[20];
+	struct object_id oid;
 
 	/*
 	 * We don't actually require that the .git directory
@@ -201,9 +201,9 @@ static int ce_compare_gitlink(const struct cache_entry *ce)
 	 *
 	 * If so, we consider it always to match.
 	 */
-	if (resolve_gitlink_ref(ce->name, "HEAD", sha1) < 0)
+	if (resolve_gitlink_ref(ce->name, "HEAD", oid.hash) < 0)
 		return 0;
-	return hashcmp(sha1, ce->oid.hash);
+	return oidcmp(&oid, &ce->oid);
 }
 
 static int ce_modified_check_fs(const struct cache_entry *ce, struct stat *st)
diff --git a/unpack-trees.c b/unpack-trees.c
index 71b70cc..0dc76ed 100644
--- a/unpack-trees.c
+++ b/unpack-trees.c
@@ -1541,15 +1541,15 @@ static int verify_clean_subdirectory(const struct cache_entry *ce,
 	int cnt = 0;
 
 	if (S_ISGITLINK(ce->ce_mode)) {
-		unsigned char sha1[20];
-		int sub_head = resolve_gitlink_ref(ce->name, "HEAD", sha1);
+		struct object_id oid;
+		int sub_head = resolve_gitlink_ref(ce->name, "HEAD", oid.hash);
 		/*
 		 * If we are not going to update the submodule, then
 		 * we don't care.
 		 */
-		if (!sub_head && !hashcmp(sha1, ce->oid.hash))
+		if (!sub_head && !oidcmp(&oid, &ce->oid))
 			return 0;
-		return verify_clean_submodule(sub_head ? NULL : sha1_to_hex(sha1),
+		return verify_clean_submodule(sub_head ? NULL : oid_to_hex(&oid),
 					      ce, error_type, o);
 	}
 
-- 
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