path.c: refactor relative_path(), not only strip prefix

diff --git a/cache.h b/cache.h
index 94ca1acf704bd2dfdc561b6b2d3d64740b975f61..8e42256942bdb3b1170938094963970a8e4fad66 100644 (file)
--- a/cache.h
+++ b/cache.h
@@ -737,7 +737,7 @@ int is_directory(const char *);
 const char *real_path(const char *path);
 const char *real_path_if_valid(const char *path);
 const char *absolute_path(const char *path);
-const char *relative_path(const char *abs, const char *base);
+const char *relative_path(const char *in, const char *prefix, struct strbuf *sb);
 int normalize_path_copy(char *dst, const char *src);
 int longest_ancestor_length(const char *path, struct string_list *prefixes);
 char *strip_path_suffix(const char *path, const char *suffix);