add release action

.github/workflows/release.yml

@@ -0,0 +1,62 @@
+on:
+  push:
+    # Sequence of patterns matched against refs/tags
+    tags:
+    - 'v*' # Push events to matching v*, i.e. v1.0, v20.15.10
+
+name: Upload Release Asset
+
+jobs:
+  build:
+    name: Upload Release Asset
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: textbook/git-checkout-submodule-action@master
+      - uses: actions-rs/toolchain@v1
+      - uses: actions/setup-java@v1.4.3
+        with:
+          java-version: 11
+      - uses: nttld/setup-ndk@v1
+        with:
+          ndk-version: r21d
+      - uses: android-actions/setup-android@v2
+
+      - Name: Compile core
+        run: ./scripts/install-toolchains.sh && ./ndk-make.sh
+
+      - name: Build APK
+        run: ./gradlew --no-daemon assembleGplay
+
+      - name: Sign APK
+        uses: r0adkll/sign-android-release@v1
+        # ID used to access action output
+        id: sign_app
+        with:
+          releaseDirectory: build/outputs/apk/gplay/release
+          signingKeyBase64: ${{ secrets.SIGNING_KEY }}
+          alias: ${{ secrets.ALIAS }}
+          keyStorePassword: ${{ secrets.KEY_STORE_PASSWORD }}
+          keyPassword: ${{ secrets.KEY_PASSWORD }}
+
+      - name: Create Release
+        id: create_release
+        uses: actions/create-release@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          tag_name: ${{ github.ref }}
+          release_name: Release ${{ github.ref }}
+          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 }}
+          asset_path: ${{steps.sign_app.outputs.signedReleaseFile}}
+          asset_name: app.apk
+          asset_content_type: application/zip