fix clone wiki failed via ssh (#5503)

modules/private/wiki.go

@@ -0,0 +1,33 @@
+// Copyright 2018 The Gitea Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package private
+
+import (
+	"fmt"
+
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/setting"
+)
+
+// InitWiki initwiki via repo id
+func InitWiki(repoID int64) error {
+	// Ask for running deliver hook and test pull request tasks.
+	reqURL := setting.LocalURL + fmt.Sprintf("api/internal/repositories/%d/wiki/init", repoID)
+	log.GitLogger.Trace("InitWiki: %s", reqURL)
+
+	resp, err := newInternalRequest(reqURL, "GET").Response()
+	if err != nil {
+		return err
+	}
+
+	defer resp.Body.Close()
+
+	// All 2XX status codes are accepted and others will return an error
+	if resp.StatusCode/100 != 2 {
+		return fmt.Errorf("Failed to init wiki: %s", decodeJSONError(resp).Err)
+	}
+
+	return nil
+}