Add Convention Develocity Maven extension

.github/dependabot.yml

@@ -51,6 +51,12 @@ updates:
       time: "02:00"
     ignore:
       - dependency-name: "com.gradle:build-scan-plugin"
+        versions: [ "1.16" ]
+  - package-ecosystem: "maven"
+    directory: "convention-develocity-maven-extension/extension"
+    schedule:
+      interval: "daily"
+      time: "02:00"
   - package-ecosystem: "github-actions"
     directory: "/"
     schedule:

.github/workflows/convention-gradle-enterprise-maven-extension.yml

@@ -0,0 +1,63 @@
+name: Verify Maven Convention Extension
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+  workflow_dispatch:
+
+jobs:
+  build:
+    name: Build Gradle Enterprise Conventions Maven Extension
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Set up JDK 8
+        uses: actions/setup-java@v3
+        with:
+          java-version: '8'
+          distribution: 'temurin'
+          cache: maven
+      - name: Build Gradle Enterprise Conventions Maven Extension
+        run: ./mvnw clean install -Dgradle.enterprise.url=https://ge.solutions-team.gradle.com
+        working-directory: convention-gradle-enterprise-maven-extension/extension
+        env:
+          GRADLE_ENTERPRISE_ACCESS_KEY: ${{ secrets.GE_SOLUTIONS_ACCESS_TOKEN }}
+      - name: Upload extension
+        uses: actions/upload-artifact@v3
+        with:
+          name: convention-gradle-enterprise-maven-extension
+          path: ~/.m2/repository/com/myorg/convention-gradle-enterprise-maven-extension
+  verification:
+    name: Verify Example Build for Maven ${{ matrix.maven-version }}
+    needs: [build]
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        maven-version: ['3.6.3', '3.8.8', '3.9.1']
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Set up JDK 8
+        uses: actions/setup-java@v3
+        with:
+          java-version: '8'
+          distribution: 'temurin'
+          cache: maven
+      - name: Download Extension
+        uses: actions/download-artifact@v3
+        with:
+          name: convention-gradle-enterprise-maven-extension
+          path: ~/.m2/repository/com/myorg/convention-gradle-enterprise-maven-extension
+      - name: Set Maven Version
+        run: ./mvnw wrapper:wrapper -Dmaven=${{ matrix.maven-version }} -Dgradle.enterprise.url=https://ge.solutions-team.gradle.com
+        working-directory: convention-gradle-enterprise-maven-extension/example
+        env:
+          GRADLE_ENTERPRISE_ACCESS_KEY: ${{ secrets.GE_SOLUTIONS_ACCESS_TOKEN }}
+      - name: Verify Example Build
+        run: ./mvnw clean verify -Dgradle.enterprise.url=https://ge.solutions-team.gradle.com
+        working-directory: convention-gradle-enterprise-maven-extension/example
+        env:
+          GRADLE_ENTERPRISE_ACCESS_KEY: ${{ secrets.GE_SOLUTIONS_ACCESS_TOKEN }}

convention-gradle-enterprise-maven-extension/.gitignore

@@ -0,0 +1,3 @@
+target/
+dependency-reduced-pom.xml
+**/.mvn/.gradle-enterprise/gradle-enterprise-workspace-id

convention-gradle-enterprise-maven-extension/README.md

@@ -0,0 +1,36 @@
+## Convention Gradle Enterprise Maven Extension
+
+This project demonstrates how a convention extension can share the same Gradle Enterprise build configuration across multiple projects. It
+is intended to serve as a starting point for creating your own Maven extension that applies your specific Gradle Enterprise configuration. Note
+the inline comments in the build and source code for things to adjust specifically to your needs.
+
+### Content
+
+This project is structured as follows:
+
+* `extension` - Contains the convention extension
+* `example` - Contains an example build that applies the convention extension
+
+### Running the example builds
+
+Before running the example build, install the convention extension to your local Maven repository.
+
+```bash
+cd extension
+./mvnw clean install
+```
+
+Once the extension is published, you can run the example build under `example`:
+
+```bash
+cd example
+./mvnw clean verify
+```
+
+Note that you would publish your convention extension to your internal artifact provider, e.g., Artifactory or Nexus, for 
+production usage. The artifact provider must be configured as a [Mirror](https://maven.apache.org/guides/mini/guide-mirror-settings.html) 
+to Maven Central in order to correctly resolve the extension.
+
+#### Requirements
+
+To run the example build, use Java 8.

convention-gradle-enterprise-maven-extension/example/.gitattributes

@@ -0,0 +1 @@
+*.bat           text eol=crlf

convention-gradle-enterprise-maven-extension/example/.mvn/extensions.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<extensions xmlns="http://maven.apache.org/EXTENSIONS/1.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+            xsi:schemaLocation="http://maven.apache.org/EXTENSIONS/1.0.0 http://maven.apache.org/xsd/core-extensions-1.0.0.xsd">
+    <extension>
+        <groupId>com.myorg</groupId>
+        <artifactId>convention-gradle-enterprise-maven-extension</artifactId>
+        <version>1.0.0-SNAPSHOT</version>
+    </extension>
+</extensions>

convention-gradle-enterprise-maven-extension/example/.mvn/wrapper/maven-wrapper.properties

@@ -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
+#
+#   http://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/3.9.4/apache-maven-3.9.4-bin.zip
+wrapperUrl=https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.2.0/maven-wrapper-3.2.0.jar