Cache management

Signed-off-by: Cédric Couralet <cedric.couralet@insee.fr>

.github/workflows/release.yml

@@ -13,10 +13,20 @@ jobs:
     steps:
       - name: Checkout code
         uses: actions/checkout@v2
+      - name: Set up JDK 1.8
+        uses: actions/setup-java@v1
+        with:
+          java-version: 1.8
+      - name: Cache Maven packages
+        uses: actions/cache@v2
+        with:
+          path: ~/.m2
+          key: ${{ runner.os }}-m2-${{ hashFiles('**/pom.xml') }}
+          restore-keys: ${{ runner.os }}-m2
       - name: Build project # This would actually build your project, using zip for an example artifact
         run: |
-          mvn versions:set -DnewVersion=${{ github.ref }}
-          mvn package
+          mvn -B versions:set -DnewVersion=${{ github.ref }}
+          mvn -B package
       - name: Create Release
         id: create_release
         uses: actions/create-release@v1
@@ -35,5 +45,5 @@ jobs:
         with:
           upload_url: ${{ steps.create_release.outputs.upload_url }} # This pulls from the CREATE RELEASE step above, referencing it's ID to get its outputs object, which include a `upload_url`. See this blog post for more info: https://jasonet.co/posts/new-features-of-github-actions/#passing-data-to-future-steps
           asset_path: target/keycloak-mail-whitelisting-${{ github.ref }}.jar
-          asset_name: keycloak-mail-whitelisting-${{ github.ref }}.zip
+          asset_name: keycloak-mail-whitelisting-${{ github.ref }}.jar
           asset_content_type: application/jar