submodule: ignore trailing slash on superproject URL

diff --git a/builtin/submodule--helper.c b/builtin/submodule--helper.c
index 7f0941ddc340583384ef1a463f34360afc16c369..612e87084c7d00d3534278da975542130faf6e49 100644 (file)
--- a/builtin/submodule--helper.c
+++ b/builtin/submodule--helper.c
@@ -95,6 +95,8 @@ static int chop_last_dir(char **remoteurl, int is_relative)
  * NEEDSWORK: This works incorrectly on the domain and protocol part.
  * remote_url      url              outcome          expectation
  * http://a.com/b  ../c             http://a.com/c   as is
+ * http://a.com/b/ ../c             http://a.com/c   same as previous line, but
+ *                                                   ignore trailing slash in url
  * http://a.com/b  ../../c          http://c         error out
  * http://a.com/b  ../../../c       http:/c          error out
  * http://a.com/b  ../../../../c    http:c           error out
@@ -113,8 +115,8 @@ static char *relative_url(const char *remote_url,
        struct strbuf sb = STRBUF_INIT;
        size_t len = strlen(remoteurl);
 
-       if (is_dir_sep(remoteurl[len]))
-               remoteurl[len] = '\0';
+       if (is_dir_sep(remoteurl[len-1]))
+               remoteurl[len-1] = '\0';
 
        if (!url_is_local_not_ssh(remoteurl) || is_absolute_path(remoteurl))
                is_relative = 0;