Add release workflow

Author: baptistemesta

.github/workflows/release.yml

@@ -0,0 +1,43 @@
+name: Release
+on:
+  push:
+    tags:
+      - '*'
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up JDK 11
+        uses: actions/setup-java@v1
+        with:
+          java-version: 11
+      - name: Grant execute permission for gradlew
+        run: chmod +x gradlew
+      - name: Build with Gradle
+        run: ./gradlew build  
+      - name: Extract version
+        shell: bash
+        run: echo ::set-output name=version::$(echo $GITHUB_REF | cut -d / -f 3)
+        id: extract_version
+      - name: Create Release
+        id: create_release
+        uses: actions/create-release@latest
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} # This token is provided by Actions, you do not need to create your own token
+        with:
+          tag_name: ${{ steps.extract_version.outputs.version }}
+          release_name: Release ${{ steps.extract_version.outputs.version }}
+          body: "Release ${{ steps.extract_version.outputs.version }}"
+          draft: false
+          prerelease: false
+      - name: Upload Release Asset
+        id: upload-release-asset
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        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: ./build/libs/bonitasoft-gdrive-upload.hpi
+          asset_name: bonitasoft-gdrive-upload.hpi
+          asset_content_type: application/zip