build: migrate maven plugin integration tests to a composite build (ExpediaGroup#1662)

### 📝 Description

Migrate Maven plugin integration tests to a composite build to speed up the overall build and simplify main build logic.

### 🔗 Related Issues

Author: dariuszkuc

.github/workflows/plugin-it.yml

@@ -1,4 +1,4 @@
-name: Gradle Plugin Integration Tests
+name: Plugin Integration Tests
 
 on:
   workflow_call:
@@ -24,8 +24,15 @@ jobs:
         uses: gradle/gradle-build-action@v2
       - name: Android Test
         run: ./gradlew build
+      - name: Archive failures
+        uses: actions/upload-artifact@v3
+        if: failure()
+        with:
+          name: gradle-plugin-android-build-reports
+          path: integration/gradle-plugin-android-test/**/build/reports
+          retention-days: 7
 
-  integration-tests:
+  gradle-integration-tests:
     timeout-minutes: 30
     runs-on: ubuntu-latest
     defaults:
@@ -45,3 +52,41 @@ jobs:
         uses: gradle/gradle-build-action@v2
       - name: Integration Tests
         run: ./gradlew build
+      - name: Archive failures
+        uses: actions/upload-artifact@v3
+        if: failure()
+        with:
+          name: gradle-plugin-build-reports
+          path: integration/gradle-plugin-integration-tests/**/build/reports
+          retention-days: 7
+
+  maven-integration-tests:
+    timeout-minutes: 30
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: integration/maven-plugin-integration-tests
+
+    steps:
+      - uses: actions/checkout@v3
+      - name: Validate Gradle wrapper
+        uses: gradle/wrapper-validation-action@v1
+      - name: Set up Java 17
+        uses: actions/setup-java@v3
+        with:
+          java-version: 17
+          distribution: 'zulu'
+          cache: 'maven'
+      - name: Set up Gradle cache
+        uses: gradle/gradle-build-action@v2
+      - name: Integration Tests
+        run: ./gradlew build
+      - name: Archive failures
+        uses: actions/upload-artifact@v3
+        if: failure()
+        with:
+          name: maven-plugin-build-reports
+          path: |
+            integration/maven-plugin-integration-tests/build/integration/**/build.log
+            integration/maven-plugin-integration-tests/build/integration/**/target/surefire-reports
+          retention-days: 7

.github/workflows/release-code.yml

@@ -44,6 +44,4 @@ jobs:
           name: build-reports
           path: |
             ./**/build/reports
-            plugins/graphql-kotlin-maven-plugin/build/integration/**/build.log
-            plugins/graphql-kotlin-maven-plugin/build/integration/**/target/surefire-reports
           retention-days: 7

integration/maven-plugin-integration-tests/.mvn/wrapper/maven-wrapper.jar

@@ -0,0 +1,18 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.8.7/apache-maven-3.8.7-bin.zip
+wrapperUrl=https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.1/maven-wrapper-3.1.1.jar

integration/maven-plugin-integration-tests/.mvn/wrapper/maven-wrapper.properties

@@ -0,0 +1,94 @@
+import com.github.tomakehurst.wiremock.standalone.WireMockServerRunner
+import java.time.Duration
+import java.util.Properties
+
+description = "GraphQL Kotlin Maven Plugin that can generate type-safe GraphQL Kotlin client and GraphQL schema in SDL format using reflections"
+
+buildscript {
+    dependencies {
+        classpath(libs.wiremock.standalone)
+    }
+}
+
+@Suppress("DSL_SCOPE_VIOLATION") // TODO: remove once KTIJ-19369 / Gradle#22797 is fixed
+plugins {
+    alias(libs.plugins.kotlin.jvm)
+}
+
+repositories {
+    mavenCentral()
+    mavenLocal {
+        content {
+            includeGroup("com.expediagroup")
+        }
+    }
+}
+
+val properties = Properties()
+properties.load(File(rootDir.parentFile.parent, "gradle.properties").inputStream())
+for ((key, value) in properties) {
+    project.ext[key.toString()] = value
+}
+
+tasks {
+    val kotlinJvmVersion: String by project
+    /*
+    Integration tests are run through maven-invoker-plugin which will execute tests under src/integration/<scenario>
+     */
+    val mavenEnvironmentVariables = mapOf(
+        "graphqlKotlinVersion" to project.ext["version"],
+        "graphqlJavaVersion" to libs.versions.graphql.java.get(),
+        "kotlinJvmTarget" to kotlinJvmVersion,
+        "kotlinVersion" to libs.versions.kotlin.get(),
+        "kotlinxCoroutinesVersion" to libs.versions.kotlinx.coroutines.get(),
+        "kotlinPoetVersion" to libs.versions.poet.get(),
+        "kotlinxSerializationVersion" to libs.versions.kotlinx.serialization.get(),
+        "ktorVersion" to libs.versions.ktor.get(),
+        "reactorVersion" to libs.versions.reactor.core.get(),
+        "junitVersion" to libs.versions.junit.get()
+    )
+    var wireMockServer: WireMockServerRunner? = null
+    var wireMockServerPort: Int? = null
+    val startWireMock by register("startWireMock") {
+        dependsOn(gradle.includedBuild("graphql-kotlin").task(":resolveIntegrationTestDependencies"))
+        finalizedBy("stopWireMock")
+
+        doLast {
+            val wireMockConfig = arrayOf(
+                "--root-dir=${project.projectDir}/integration/wiremock",
+                "--port=0"
+            )
+            wireMockServer = WireMockServerRunner()
+            wireMockServer?.run(*wireMockConfig)
+            wireMockServerPort = wireMockServer?.port()
+            logger.info("wiremock started at port $wireMockServerPort")
+        }
+    }
+    val stopWireMock by register("stopWireMock") {
+        mustRunAfter("startWireMock")
+
+        doLast {
+            val server = wireMockServer
+            if (server?.isRunning == true) {
+                logger.info("attempting to stop wiremock server")
+                server.stop()
+                logger.info("wiremock server stopped")
+            }
+        }
+    }
+    val integrationTest by register("integrationTest") {
+        dependsOn(startWireMock.path)
+        finalizedBy(stopWireMock.path)
+        timeout.set(Duration.ofSeconds(500))
+        doLast {
+            exec {
+                environment(mavenEnvironmentVariables)
+                environment("graphqlEndpoint", "http://localhost:$wireMockServerPort")
+                commandLine("${project.projectDir}/mvnw", "dependency:go-offline", "invoker:install", "invoker:run", "--no-transfer-progress")
+            }
+        }
+    }
+    check {
+        dependsOn(integrationTest.path)
+    }
+}

integration/maven-plugin-integration-tests/build.gradle.kts

@@ -0,0 +1,6 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.6-bin.zip
+networkTimeout=10000
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists