ci: Add release workflow (#1235)

.github/workflows/release-build.yml

@@ -0,0 +1,43 @@
+name: Release Build
+
+on:
+  push:
+    tags:
+      - "v*"
+
+jobs:
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set env
+        run: echo "RELEASE_VERSION=${GITHUB_REF#refs/*/}" >> $GITHUB_ENV
+
+      - name: Set up Java
+        run: echo "JAVA_HOME=$JAVA_HOME_17_X64" >> $GITHUB_ENV
+
+      - name: Build with Gradle
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: ./gradlew assembleRelease --no-daemon
+
+      - name: Sign APK
+        id: sign_apk
+        uses: ilharp/sign-android-release@v1
+        with:
+          releaseDir: ./app/build/outputs/apk/release/
+          signingKey: ${{ secrets.SIGNING_KEYSTORE }}
+          keyStorePassword: ${{ secrets.SIGNING_KEYSTORE_PASSWORD }}
+          keyAlias: ${{ secrets.SIGNING_KEY_ALIAS }}
+          keyPassword: ${{ secrets.SIGNING_KEY_PASSWORD }}
+
+      - name: Add version to APK
+        run: mv ${{ steps.sign_apk.outputs.signedFile }} revanced-manager-${{ env.RELEASE_VERSION }}.apk
+
+      - name: Publish release APK
+        uses: "marvinpinto/action-automatic-releases@latest"
+        with:
+          repo_token: "${{ secrets.GITHUB_TOKEN }}"
+          prerelease: false
+          files: revanced-manager-${{ env.RELEASE_VERSION }}.apk