Merge branch 'custom_stubs_classifier' of https://github.com/Dominick1993/spring-cloud-contract into Dominick1993-custom_stubs_classifier

docker/spring-cloud-contract-docker/project/build.gradle

@@ -60,6 +60,7 @@ test {
 contracts {
 	baseClassForTests = "contracts.RestBase"
 	testMode = "EXPLICIT"
+	stubsSuffix = getProp("PRODUCER_STUBS_CLASSIFIER") ?: "stubs"
 	if (getProp("EXTERNAL_CONTRACTS_ARTIFACT_ID")) {
 		logger.
 				lifecycle("Will use an artifact with contracts [${getProp("EXTERNAL_CONTRACTS_GROUP_ID")}:${getProp("EXTERNAL_CONTRACTS_ARTIFACT_ID")}]")

docs/src/main/asciidoc/verifier_setup.adoc

@@ -1084,6 +1084,7 @@ your running application, to the Artifact manager instance etc.
 - `PROJECT_GROUP` - your project's group id. Defaults to `com.example`
 - `PROJECT_VERSION` - your project's version. Defaults to `0.0.1-SNAPSHOT`
 - `PROJECT_NAME` - artifact id. Defaults to `example`
+- `PRODUCER_STUBS_CLASSIFIER` - archive classifier used for generated producer stubs, defaults to `stubs`.
 - `REPO_WITH_BINARIES_URL` - URL of your Artifact Manager. Defaults to `http://localhost:8081/artifactory/libs-release-local`
 which is the default URL of https://jfrog.com/artifactory/[Artifactory] running locally
 - `REPO_WITH_BINARIES_USERNAME` - (optional) username when the Artifact Manager is secured, defaults to `admin`.

spring-cloud-contract-tools/spring-cloud-contract-gradle-plugin/src/main/groovy/org/springframework/cloud/contract/verifier/plugin/SpringCloudContractVerifierGradlePlugin.groovy

@@ -25,6 +25,8 @@ import org.gradle.api.publish.maven.MavenPublication
 import org.gradle.api.publish.maven.plugins.MavenPublishPlugin
 import org.gradle.jvm.tasks.Jar
 
+import org.springframework.cloud.contract.verifier.config.ContractVerifierConfigProperties
+
 /**
  * Gradle plugin for Spring Cloud Contract Verifier that from the DSL contract can
  * <ul>
@@ -148,11 +150,12 @@ class SpringCloudContractVerifierGradlePlugin implements Plugin<Project> {
 			return task
 		}
 		else {
+			ContractVerifierConfigProperties props = ExtensionToProperties.fromExtension(extension)
 			task = project.tasks.create(type: Jar, name: VERIFIER_STUBS_JAR_TASK_NAME,
 					dependsOn: DSL_TO_CLIENT_TASK_NAME) {
 				baseName = project.name
-				classifier = extension.stubsSuffix
-				from { extension.stubsOutputDir ?: project.file("${project.buildDir}/stubs") }
+				classifier = props.stubsSuffix
+				from { props.stubsOutputDir ?: project.file("${project.buildDir}/stubs") }
 			}
 			task.description = "Creates the stubs JAR task"
 			task.group = GROUP_NAME