Add workflow for gradle enterprise (#15211)

* add workflow for gradle enterprise

* add xml files

* remove build cache

* install

* update

* just clean

* trigger build

* mvn clean install

.github/workflows/gradle-enterprise.yaml

@@ -0,0 +1,42 @@
+name: Gradle Enterprise
+
+on:
+  push:
+    branches:
+      - master
+      - '[5-9]+.[0-9]+.x'
+  pull_request:
+    branches:
+      - master
+      - '[5-9]+.[0-9]+.x'
+      - 'gradle-enterprise**'
+
+jobs:
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Set up JDK 8
+        uses: actions/setup-java@v3
+        with:
+          java-version: 8
+          distribution: 'temurin'
+      - name: Cache maven dependencies
+        uses: actions/cache@v3
+        env:
+          cache-name: cache-maven-repository
+        with:
+          path: |
+            ~/.m2/repository
+            ~/.gradle
+            !~/.gradle/caches/*/plugin-resolution/
+            !~/.m2/repository/org/openapitools/
+          key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ hashFiles('**/pom.xml') }}
+          restore-keys: |
+            ${{ runner.os }}-build-${{ env.cache-name }}-
+            ${{ runner.os }}-build-
+      - name: Run maven
+        run: mvn clean install
+        env:
+          GRADLE_ENTERPRISE_ACCESS_KEY: ${{ secrets.GRADLE_ENTERPRISE_ACCESS_KEY }}

.mvn/extensions.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<extensions>
+    <extension>
+        <groupId>com.gradle</groupId>
+        <artifactId>gradle-enterprise-maven-extension</artifactId>
+        <version>1.16.6</version>
+    </extension>
+    <extension>
+        <groupId>com.gradle</groupId>
+        <artifactId>common-custom-user-data-maven-extension</artifactId>
+        <version>1.11.1</version>
+    </extension>
+</extensions>

.mvn/gradle-enterprise.xml

@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
+
+<!-- Common gradle-enterprise.xml configuration for Maven shared between CI agents and developers building locally.
+
+     The build cache credentials required for CI builds to write to the remote build cache are read from environment variables.
+     Possibly, the credentials are configured in Jenkins via Credentials plugin (https://plugins.jenkins.io/credentials/) and
+     Credentials Binding plugin (https://plugins.jenkins.io/credentials-binding/), or the credentials are injected using the
+     vendor-specific mechanism of the CI server running the build.
+
+     Note: In the XML configuration below, you need to adjust
+
+             - the server url of your Gradle Enterprise server
+             - the name of the environment variable that reveals the build is running in a CI environment
+             - the names of the environment variables holding the build cache credentials
+
+           to the specifics of your CI server settings. -->
+
+<gradleEnterprise
+    xmlns="https://www.gradle.com/gradle-enterprise-maven" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:schemaLocation="https://www.gradle.com/gradle-enterprise-maven https://www.gradle.com/schema/gradle-enterprise-maven.xsd">
+  <server>
+    <url>https://ge.openapi-generator.tech/</url> <!-- adjust to your GE server -->
+    <allowUntrusted>false</allowUntrusted> <!-- ensure a trusted certificate is configured -->
+  </server>
+  <buildScan>
+    <captureGoalInputFiles>true</captureGoalInputFiles>
+    <backgroundBuildScanUpload>#{isFalse(env['CI'])}</backgroundBuildScanUpload> <!-- adjust to your CI provider -->
+    <publish>ALWAYS</publish>
+    <publishIfAuthenticated>true</publishIfAuthenticated>
+  </buildScan>
+</gradleEnterprise>