setup: stop using the_repository in path_inside_repo()

Stop using `the_repository` in `path_inside_repo()` and instead accept
the repository as a parameter. The injection of `the_repository` is thus
bumped one level higher, where callers now pass it in explicitly.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

builtin/diff.c

@@ -471,8 +471,8 @@ int cmd_diff(int argc,
 		 * as a colourful "diff" replacement.
 		 */
 		if (nongit || ((argc == i + 2) &&
-			       (!path_inside_repo(prefix, argv[i]) ||
-				!path_inside_repo(prefix, argv[i + 1]))))
+			       (!path_inside_repo(the_repository, prefix, argv[i]) ||
+				!path_inside_repo(the_repository, prefix, argv[i + 1]))))
 			no_index = DIFF_NO_INDEX_IMPLICIT;
 	}
 

setup.c

@@ -160,10 +160,10 @@ char *prefix_path(struct repository *repo, const char *prefix, int len, const ch
 	return r;
 }
 
-int path_inside_repo(const char *prefix, const char *path)
+int path_inside_repo(struct repository *repo, const char *prefix, const char *path)
 {
 	int len = prefix ? strlen(prefix) : 0;
-	char *r = prefix_path_gently(the_repository, prefix, len, NULL, path);
+	char *r = prefix_path_gently(repo, prefix, len, NULL, path);
 	if (r) {
 		free(r);
 		return 1;

setup.h

@@ -146,7 +146,7 @@ void verify_filename(const char *prefix,
 		     const char *name,
 		     int diagnose_misspelt_rev);
 void verify_non_filename(const char *prefix, const char *name);
-int path_inside_repo(const char *prefix, const char *path);
+int path_inside_repo(struct repository *repo, const char *prefix, const char *path);
 
 void sanitize_stdfds(void);
 int daemonize(void);