submodule-config: ban submodule urls that start with dash

diff --git a/submodule-config.c b/submodule-config.c
index acb7767d3704bafd5ec555daf17f2cb37d33e2a7..6eb13a5536d31b7b29bd906fa5d9ae3f1ee1c2af 100644 (file)
--- a/submodule-config.c
+++ b/submodule-config.c
@@ -367,6 +367,12 @@ static void warn_multiple_config(const unsigned char *treeish_name,
                        commit_string, name, option);
 }
 
+static void warn_command_line_option(const char *var, const char *value)
+{
+       warning(_("ignoring '%s' which may be interpreted as"
+                 " a command-line option: %s"), var, value);
+}
+
 struct parse_config_parameter {
        struct submodule_cache *cache;
        const unsigned char *treeish_name;
@@ -432,6 +438,8 @@ static int parse_config(const char *var, const char *value, void *data)
        } else if (!strcmp(item.buf, "url")) {
                if (!value) {
                        ret = config_error_nonbool(var);
+               } else if (looks_like_command_line_option(value)) {
+                       warn_command_line_option(var, value);
                } else if (!me->overwrite && submodule->url) {
                        warn_multiple_config(me->treeish_name, submodule->name,
                                        "url");