Sync with 2.18.1

* maint-2.18:
  Git 2.18.1
  Git 2.17.2
  fsck: detect submodule paths starting with dash
  fsck: detect submodule urls starting with dash
  Git 2.16.5
  Git 2.15.3
  Git 2.14.5
  submodule-config: ban submodule paths that start with a dash
  submodule-config: ban submodule urls that start with dash
  submodule--helper: use "--" to signal end of clone options

1 files changed, 10 insertions, 0 deletions

diff --git a/submodule-config.c b/submodule-config.c
index fc2c41b947..0b2f1647ab 100644
--- a/submodule-config.c
+++ b/submodule-config.c
@@ -384,6 +384,12 @@ static void warn_multiple_config(const struct object_id *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 struct object_id *treeish_name;
@@ -409,6 +415,8 @@ static int parse_config(const char *var, const char *value, void *data)
 	if (!strcmp(item.buf, "path")) {
 		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->path)
 			warn_multiple_config(me->treeish_name, submodule->name,
 					"path");
@@ -449,6 +457,8 @@ 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");