Add GitHub Actions CI/CD workflow

Author: jaymcnallie

.github/workflows/ci.yml

@@ -0,0 +1,103 @@
+name: CI
+
+on:
+  push:
+    branches:
+      - master
+      - '[0-9]+.[0-9]+.x'
+  pull_request:
+    branches:
+      - master
+      - '[0-9]+.[0-9]+.x'
+  schedule:
+    - cron: '0 18 * * *'
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+env:
+  MAVEN_OPTS: '-Xmx4G -Xms1G -Djava.security.egd=file:/dev/./urandom'
+  MAVEN_CLI_OPTS: '-B -Dorg.slf4j.simpleLogger.log.org.apache.maven.cli.transfer.Slf4jMavenTransferListener=warn'
+
+jobs:
+  incremental-build:
+    if: github.event_name == 'pull_request'
+    runs-on: ubuntu-latest
+    timeout-minutes: 30
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Set up JDK 17
+        uses: actions/setup-java@v4
+        with:
+          java-version: '17'
+          distribution: 'temurin'
+          cache: maven
+
+      - name: Build
+        run: mvn clean install $MAVEN_CLI_OPTS -DskipTests
+
+  full-build:
+    if: github.event_name != 'pull_request'
+    runs-on: ubuntu-latest
+    timeout-minutes: 30
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up JDK 17
+        uses: actions/setup-java@v4
+        with:
+          java-version: '17'
+          distribution: 'temurin'
+          cache: maven
+
+      - name: Build
+        run: mvn clean install $MAVEN_CLI_OPTS -DskipTests
+
+  deploy:
+    needs: full-build
+    if: |
+      github.event_name != 'pull_request' &&
+      (github.ref == 'refs/heads/master' || contains(github.ref, '.x'))
+    runs-on: ubuntu-latest
+    environment: production
+    permissions:
+      packages: write
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up JDK 17
+        uses: actions/setup-java@v4
+        with:
+          java-version: '17'
+          distribution: 'temurin'
+          cache: maven
+
+      - name: Configure Maven settings
+        uses: s4u/maven-settings-action@v3.0.0
+        with:
+          servers: |
+            [{
+              "id": "releases",
+              "username": "${{ github.actor }}",
+              "password": "${{ secrets.GITHUB_TOKEN }}"
+            },
+            {
+              "id": "snapshots",
+              "username": "${{ github.actor }}",
+              "password": "${{ secrets.GITHUB_TOKEN }}"
+            }]
+
+      - name: Deploy
+        run: |
+          mvn deploy $MAVEN_CLI_OPTS \
+            -DskipTests=true \
+            -DretryFailedDeploymentCount=10 \
+            -DaltReleaseDeploymentRepository=releases::https://maven.pkg.github.com/codice/jcodec \
+            -DaltSnapshotDeploymentRepository=snapshots::https://maven.pkg.github.com/codice/jcodec