Added github workflow and added nightly build plus pre-release

Author: bladeoner

.github/workflows/build.yml

@@ -0,0 +1,102 @@
+name: moonlight-android
+
+on: [push, pull_request]
+
+jobs:
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: android-actions/setup-android@v3
+      with:
+        cmdline-tools-version: 9477386
+
+    - uses: actions/setup-java@v4
+      with:
+        java-version: 21
+        distribution: 'adopt'
+
+    - name: Set up environment
+      run: |
+        echo "ANDROID_NDK_HOME=$ANDROID_NDK_HOME" >> $GITHUB_ENV
+        echo "ANDROID_SDK_ROOT=$ANDROID_HOME" >> $GITHUB_ENV
+        echo "COMMIT_PREFIX=$(echo ${{ github.sha }} | cut -c1-8)" >> $GITHUB_ENV
+
+    - name: Checkout moonlight-android repo
+      uses: actions/checkout@v4
+      with:
+        fetch-depth: 0
+        submodules: recursive
+
+    - name: Decode debug keystore
+      env:
+        DEBUG_KEYSTORE: ${{ secrets.DEBUG_KEYSTORE }}
+      run: |
+        if [ -z "$DEBUG_KEYSTORE" ]
+        then
+          echo "No debug keystore value"
+        else
+          echo $DEBUG_KEYSTORE > debug.keystore.base64
+          base64 --decode debug.keystore.base64 > debug.keystore
+          sudo cp -f debug.keystore /root/.android/.
+        fi
+
+    - name: Build artifact
+      run: ./gradlew assemble
+
+    - name: Copy artifact
+      run: |
+        mkdir moonlight-android
+        cp app/build/outputs/apk/root/debug/app-root-debug.apk "moonlight-android/app-root-debug-${COMMIT_PREFIX}.apk"
+        cp app/build/outputs/apk/nonRoot/debug/app-nonRoot-debug.apk "moonlight-android/app-nonRoot-debug-${COMMIT_PREFIX}.apk"
+
+    - name: Upload artifact
+      uses: actions/upload-artifact@v4
+      with:
+        name: moonlight-android
+        path: ${{ github.workspace }}/moonlight-android
+
+  release:
+    name: Release
+    runs-on: ubuntu-latest
+    needs: [build]
+    if: github.ref == 'refs/heads/master'
+
+    steps:
+    - name: Checkout moonlight-android repo
+      uses: actions/checkout@v4
+      with:
+        fetch-depth: 0
+
+    - name: Download Artifacts
+      uses: actions/download-artifact@v4
+      with:
+        path: dist
+        merge-multiple: true
+
+    - name: Re-zip artifacts
+      run: |
+        cd dist
+        COMMIT_PREFIX=$(echo ${{ github.sha }} | cut -c1-8)
+        for artifact in *.apk
+        do
+          file_name="${artifact%.apk}"
+          echo "-> Creating ${file_name//-${COMMIT_PREFIX}/}.zip"
+          zip "${file_name//-${COMMIT_PREFIX}/}.zip" "${file_name}.apk"
+        done
+
+    - name: Update Git Tag
+      run: |
+        git tag -f Pre-release
+        git push -f origin Pre-release
+
+    - name: Create Release
+      uses: ncipollo/release-action@v1
+      with:
+        prerelease: true
+        allowUpdates: true
+        removeArtifacts: true
+        replacesArtifacts: false
+        tag: Pre-release
+        artifacts: "dist/*.zip"

README.md

@@ -18,6 +18,18 @@ You can follow development on our [Discord server](https://moonlight-stream.org/
 * [F-Droid](https://f-droid.org/packages/com.limelight)
 * [APK](https://github.com/moonlight-stream/moonlight-android/releases)
 
+## Nightly builds
+| Name                    | Status                            | File                                                |
+|-------------------------|-----------------------------------|-----------------------------------------------------|
+| app nonRoot debug       | [![Build Status][Build]][Actions] | [![moonlight-android][Download]][app nonRoot debug] |
+| app Root debug          | [![Build Status][Build]][Actions] | [![moonlight-android][Download]][app root debug]    |
+
+[Actions]: https://github.com/moonlight-stream/moonlight-android/actions/workflows/build.yml
+[Build]: https://github.com/moonlight-stream/moonlight-android/actions/workflows/build.yml/badge.svg
+[Download]: https://img.shields.io/badge/Download-blue
+[app nonRoot debug]: https://github.com/moonlight-stream/moonlight-android/releases/download/Pre-release/app-nonRoot-debug.zip
+[app root debug]: https://github.com/moonlight-stream/moonlight-android/releases/download/Pre-release/app-root-debug.zip
+
 ## Building
 * Install Android Studio and the Android NDK
 * Run ‘git submodule update --init --recursive’ from within moonlight-android/
@@ -26,9 +38,9 @@ You can follow development on our [Discord server](https://moonlight-stream.org/
 
 ## Authors
 
-* [Cameron Gutman](https://github.com/cgutman)  
-* [Diego Waxemberg](https://github.com/dwaxemberg)  
-* [Aaron Neyer](https://github.com/Aaronneyer)  
+* [Cameron Gutman](https://github.com/cgutman)
+* [Diego Waxemberg](https://github.com/dwaxemberg)
+* [Aaron Neyer](https://github.com/Aaronneyer)
 * [Andrew Hennessy](https://github.com/yetanothername)
 
 Moonlight is the work of students at [Case Western](http://case.edu) and was