[IDEA] Enable Gradle Configuration Cache for Gradle Test Runner (elastic#123552) (elastic#123623)

* [IDEA] Enable Gradle Configuration Cache for Gradle Runner

This should speedup repetitives usages of the Gradle Runner for the majority of test executions
We added a flag to disable it explicitly if it does not work for certain scenarios

Author: breskeby

build-tools-internal/src/main/groovy/elasticsearch.build-scan.gradle

@@ -133,6 +133,9 @@ develocity {
         }
       } else {
         tag 'LOCAL'
+        if (providers.systemProperty('idea.active').present) {
+          tag 'IDEA'
+        }
       }
     }
   }

build-tools-internal/src/main/groovy/elasticsearch.ide.gradle

@@ -144,7 +144,7 @@ if (providers.systemProperty('idea.active').getOrNull() == 'true') {
 
   // this path is produced by the extractLibs task above
   String testLibraryPath = TestUtil.getTestLibraryPath("${elasticsearchProject.left()}/libs/native/libraries/build/platform")
-
+  def enableIdeaCC = providers.gradleProperty("org.elasticsearch.idea-configuration-cache").getOrElse("true").toBoolean()
   idea {
     project {
       vcs = 'Git'
@@ -171,6 +171,11 @@ if (providers.systemProperty('idea.active').getOrNull() == 'true') {
           }
         }
         runConfigurations {
+          defaults(org.jetbrains.gradle.ext.Gradle) {
+            scriptParameters = enableIdeaCC ? [
+              '--configuration-cache'
+            ].join(' ') : ''
+          }
           defaults(JUnit) {
             vmParameters = [
               '-ea',

gradle.properties

@@ -19,3 +19,6 @@ org.gradle.dependency.verification.console=verbose
 
 # allow user to specify toolchain via the RUNTIME_JAVA_HOME environment variable
 org.gradle.java.installations.fromEnv=RUNTIME_JAVA_HOME
+
+# if configuration cache enabled then enable parallel support too
+org.gradle.configuration-cache.parallel=true