build-android-demos.yml

name: Build All Android Demos

on:
  workflow_dispatch:
  push:
    branches:
      - master
    paths:
      - 'demos/android/**'
  pull_request:
    branches:
      - master
    paths:
      - 'demos/**'
      - '.github/workflows/build-android-demos.yml'

jobs:
  generate-matrix:
    runs-on: ubuntu-latest
    outputs:
      matrix: ${{ steps.set-matrix.outputs.matrix }}
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          sparse-checkout: demos/android
          fetch-depth: 2 # Required for git diff in PRs

      - name: Generate matrix
        id: set-matrix
        run: |
          if [ "${{ github.event_name }}" = "pull_request" ]; then
            # Get list of changed files in demos/android/ directory
            changed_files=$(git diff --name-only ${{ github.event.pull_request.base.sha }} HEAD -- 'demos/android/*')

            echo "Changed files:"
            echo "$changed_files"

            # Extract unique demo directories
            matrix=$(echo "$changed_files" | grep -oE 'demos/android/[^/]*/MASTG-DEMO-[^/]+' | sort -u | head -c -1 | tr '\n' ' ' | sed 's/ /","/g')

            # If no changes, set empty matrix
            if [ -z "$matrix" ]; then
              echo "matrix={\"demo\":[]}" >> $GITHUB_OUTPUT
            else
              echo "matrix={\"demo\":[\"$matrix\"]}" >> $GITHUB_OUTPUT
            fi
          else
            # Default behavior: include all demos for master branch
            matrix=$(echo demos/android/*/MASTG-DEMO-* | sed 's/ /","/g')
            echo "matrix={\"demo\":[\"$matrix\"]}" >> $GITHUB_OUTPUT
          fi
          echo "Print matrix: $matrix"
      - name: Print matrix
        run: echo "${{ steps.set-matrix.outputs.matrix }}"

  build-base-app:
    runs-on: ubuntu-latest
    timeout-minutes: 10
    steps:
      - name: Get last commit hash of MASTestApp-Android
        id: get-mastestapp-hash
        run: |
          echo "MASTESTAPP_HASH=$(git ls-remote https://github.com/cpholguera/MASTestApp-Android.git HEAD | awk '{print $1}')" >> $GITHUB_ENV 
          echo "MASTESTAPP_HASH=$MASTESTAPP_HASH" >> $GITHUB_OUTPUT

      - name: Check if already cached
        id: cache-check
        uses: actions/cache/restore@v4
        with:
          lookup-only: true
          path: MASTestApp-Android/ # we're forced to write a path even if we don't need it
          key: base-app-${{ env.MASTESTAPP_HASH }}

      - name: Set up JDK 17
        if: steps.cache-check.outputs.cache-hit != 'true'
        uses: actions/setup-java@v4
        with:
          java-version: '17'
          distribution: 'temurin'

      - name: Setup Gradle
        if: steps.cache-check.outputs.cache-hit != 'true'
        uses: gradle/actions/setup-gradle@v4
        with:
          cache-read-only: false

      - name: Clone MASTestApp-Android repository
        if: steps.cache-check.outputs.cache-hit != 'true'
        uses: actions/checkout@v4
        with:
          repository: cpholguera/MASTestApp-Android
          path: MASTestApp-Android
          ref: ${{ env.MASTESTAPP_HASH }}

      - name: Build base app
        if: steps.cache-check.outputs.cache-hit != 'true'
        run: |
          cd MASTestApp-Android
          grep -q 'org.gradle.caching=true' gradle.properties || echo -en "\norg.gradle.caching=true\norg.gradle.configuration-cache=true\n" >> gradle.properties
          ./gradlew assembleDebug --stacktrace || (
            echo "Build failed"
            exit 1
          )
          echo "Build succeeded"

      - name: Saving cache
        if: steps.cache-check.outputs.cache-hit != 'true'
        uses: actions/cache/save@v4
        with:
          path: MASTestApp-Android/
          key: ${{ steps.cache-check.outputs.cache-primary-key }}
   
  build:
    needs: [generate-matrix, build-base-app]
    runs-on: ubuntu-latest
    timeout-minutes: 30  # Increase this value as needed
    strategy:
      matrix: ${{ fromJson(needs.generate-matrix.outputs.matrix) }}
      max-parallel: 3  # Limit the number of parallel jobs
    
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          sparse-checkout: demos/android

      - name: Set up JDK 17
        uses: actions/setup-java@v4
        with:
          java-version: '17'
          distribution: 'temurin'

      - name: Setup Gradle
        uses: gradle/actions/setup-gradle@v4
        with:
          cache-read-only: true

      - name: Restore cache
        id: cache-base-app
        uses: actions/cache/restore@v4
        with:
          path: MASTestApp-Android/
          key: base-app-${{ env.MASTESTAPP_HASH }}

      - name: Replace files and build APK
        run: |
          demo="${{ matrix.demo }}"
          [ -d "$demo" ] || (
            echo "Demo directory not found: $demo"
            exit 1
          )

          echo "Processing $demo"
          cp -f "$demo/MastgTest.kt" MASTestApp-Android/app/src/main/java/org/owasp/mastestapp/MastgTest.kt 2>/dev/null \
            && echo "Copied MastgTest.kt for $demo" \
            || echo "No MastgTest.kt found for $demo"
          cp -f "$demo/MastgTestWebView.kt" MASTestApp-Android/app/src/main/java/org/owasp/mastestapp/MastgTestWebView.kt 2>/dev/null \
            && echo "Copied MastgTestWebView.kt for $demo" \
            || echo "No MastgTestWebView.kt found for $demo"
          cp -f "$demo/AndroidManifest.xml" MASTestApp-Android/app/src/main/AndroidManifest.xml 2>/dev/null \
            && echo "Copied AndroidManifest.xml for $demo" \
            || echo "No AndroidManifest.xml found for $demo"
          cp -f "$demo/filepaths.xml" MASTestApp-Android/app/src/main/res/xml/filepaths.xml 2>/dev/null \
            && echo "Copied filepaths.xml for $demo" \
            || echo "No filepaths.xml found for $demo"
          cp -f "$demo/network_security_config.xml" MASTestApp-Android/app/src/main/res/xml/network_security_config.xml 2>/dev/null \
            && echo "Copied network_security_config.xml for $demo" \
            || echo "No network_security_config.xml found for $demo"
          cp -f "$demo/backup_rules.xml" MASTestApp-Android/app/src/main/res/xml/backup_rules.xml 2>/dev/null \
            && echo "Copied backup_rules.xml for $demo" \
            || echo "No backup_rules.xml found for $demo"
          cp -f "$demo/data_extraction_rules.xml" MASTestApp-Android/app/src/main/res/xml/data_extraction_rules.xml 2>/dev/null \
            && echo "Copied data_extraction_rules.xml for $demo" \
            || echo "No data_extraction_rules.xml found for $demo"
          
          echo "Building APK for $demo"
          cd MASTestApp-Android
          grep -q 'org.gradle.caching=true' gradle.properties || echo -en "\norg.gradle.caching=true\norg.gradle.configuration-cache=true\n" >> gradle.properties
          ./gradlew assembleDebug --stacktrace || (
            echo "Build failed for $demo"
            exit 1
          )
          cd ..
          echo "Build succeeded for $demo"          

          apk_filename="$(basename "$demo").apk"
          mv MASTestApp-Android/app/build/outputs/apk/debug/app-debug.apk "$apk_filename" || (
            echo "APK not found for $demo"
            exit 1
          )
          echo "APK for $demo moved to $apk_filename"
          echo "APK_NAME=$apk_filename" >> $GITHUB_ENV

      - name: Upload APK
        uses: actions/upload-artifact@v4
        with:
          name: ${{ env.APK_NAME }}
          path: "${{ env.APK_NAME }}"