Merge branch 'mk/clone-recurse-submodules' into seen

* mk/clone-recurse-submodules:
  clone: set submodule.recurse=true if user enables feature.experimental flag

Author: gitster

builtin/clone.c

@@ -874,6 +874,7 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
 	struct remote *remote;
 	int err = 0, complete_refs_before_fetch = 1;
 	int submodule_progress;
+	int experimental_flag;
 
 	struct transport_ls_refs_options transport_ls_refs_options =
 		TRANSPORT_LS_REFS_OPTIONS_INIT;
@@ -1015,6 +1016,11 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
 					   strbuf_detach(&sb, NULL));
 		}
 
+		if(!git_config_get_bool("feature.experimental", &experimental_flag) &&
+		    experimental_flag) {
+		    string_list_append(&option_config, "submodule.recurse=true");
+		}
+
 		if (option_required_reference.nr &&
 		    option_optional_reference.nr)
 			die(_("clone --recursive is not compatible with "

t/t5606-clone-options.sh

@@ -16,6 +16,18 @@ test_expect_success 'setup' '
 
 '
 
+test_expect_success 'feature.experimental flag manipulates submodule.recurse value' '
+
+	test_config_global feature.experimental true &&
+	git clone --recurse-submodules parent clone_recurse_true &&
+	test_cmp_config -C clone_recurse_true true submodule.recurse &&
+
+	test_config_global feature.experimental false &&
+	git clone --recurse-submodules parent clone_recurse_false &&
+	test_expect_code 1 git -C clone_recurse_false config --get submodule.recurse
+
+'
+
 test_expect_success 'clone -o' '
 
 	git clone -o foo parent clone-o &&