fix groovy syntax

Jenkinsfile

@@ -263,15 +263,18 @@ def cmake_build(Map conf=[:]){
     echo cmd
     if(check_host() && params.USE_SCCACHE && "${env.CK_SCCACHE}" != "null" && "${invocation_tag}" != "") {
         try {
-            sh """${redis_pre_setup_cmd}"""
+            def cmd1 = conf.get("cmd1", """${redis_pre_setup_cmd}""")
+            sh cmd1
         }
-        catch(err){
-            echo "could not connect to redis server. using local sccache."
-            sh """${local_pre_setup_cmd}"""
+        catch(Exception err){
+            echo "could not connect to redis server: ${err.getMessage()}. using local sccache."
+            def cmd2 = conf.get("cmd2", """${local_pre_setup_cmd}""")
+            sh cmd2
         }
     }
     else{
-        sh """${pre_setup_cmd}"""
+        def cmd3 = conf.get("cmd3",  """${pre_setup_cmd}""")
+        sh cmd3
     }
     dir("build"){
         sh cmd