Determine the version

.github/workflows/build.yml

@@ -18,6 +18,16 @@ jobs:
         runs-on: ubuntu-latest
         steps:
             - uses: actions/checkout@v2
+            - name: Determine the version
+              # Updates the build version to the tag if it's a release.
+              # Otherwise updates the build version to latest tag with the branch name as a suffix (i.e. 1.0.0-feature-upload).
+              run: |
+                LAST_VERSION=$(git describe --tags --always --first-parent)
+                VERSION_SUFFIX=$(echo ${{ github.head_ref }} | sed -e 's/^refs\///' -e 's/[^0-9a-zA-Z\-_]/-/g')
+                BUILD_VERSION=$([[ "${{ github.event_name }}" == "release" ]] && echo $LAST_VERSION || echo "$LAST_VERSION-$VERSION_SUFFIX")
+                sed -i'' -e "/^version=/s/=.*/=$BUILD_VERSION/" gradle.properties
+                echo $BUILD_VERSION
+                echo "::set-output name=BUILD_VERSION::$BUILD_VERSION"
             - name: Set up JDK 1.8
               uses: actions/setup-java@v1
               with: