build.yml

name: Build APK (Self-Healing)

on:
  workflow_dispatch:

permissions:
  contents: read

concurrency:
  group: build-apk-${{ github.ref }}
  cancel-in-progress: true

jobs:
  build:
    runs-on: ubuntu-latest
    timeout-minutes: 45

    env:
      CI: true
      GRADLE_OPTS: -Dorg.gradle.daemon=false -Dorg.gradle.jvmargs=-Xmx4g
      JAVA_TOOL_OPTIONS: -Xmx4g

    steps:
      - name: Checkout repo
        uses: actions/checkout@v5
        with:
          fetch-depth: 1

      - name: Set up JDK 17
        uses: actions/setup-java@v5
        with:
          distribution: temurin
          java-version: '17'
          cache: gradle

      - name: Set up Gradle
        uses: gradle/actions/setup-gradle@v6
        with:
          gradle-version: '8.2'

      - name: Set up Android SDK base tools
        uses: android-actions/setup-android@v4
        with:
          packages: ''

      - name: Build with auto-repair
        shell: bash
        run: |
          set -Eeuo pipefail
          shopt -s nullglob

          log() {
            echo "[$(date +'%H:%M:%S')] $*"
          }

          detect_project_root() {
            if [ -f "./settings.gradle" ] || [ -f "./settings.gradle.kts" ] || [ -f "./gradlew" ]; then
              echo "."
              return 0
            fi

            local found
            found="$(find . -maxdepth 4 -type f \
              \( -name "settings.gradle" -o -name "settings.gradle.kts" -o -name "gradlew" \) \
              ! -path "./.git/*" ! -path "./.github/*" | head -n 1 || true)"

            if [ -z "$found" ]; then
              return 1
            fi

            dirname "$found"
          }

          PROJECT_ROOT="$(detect_project_root)" || {
            echo "Could not find Android project root."
            exit 1
          }

          log "Project root: $PROJECT_ROOT"
          cd "$PROJECT_ROOT"

          SDKMANAGER="$(command -v sdkmanager || true)"
          if [ -z "$SDKMANAGER" ]; then
            echo "sdkmanager not found in PATH"
            exit 1
          fi

          detect_compile_sdk() {
            local sdk
            sdk="$(grep -RhoE \
              'compileSdkVersion[[:space:]]*[= ]*[0-9]+|compileSdk[[:space:]]*[= ]*[0-9]+' \
              . --include='*.gradle' --include='*.kts' 2>/dev/null \
              | grep -oE '[0-9]+' | head -n 1 || true)"
            if [ -z "$sdk" ]; then
              sdk="34"
            fi
            echo "$sdk"
          }

          COMPILE_SDK="$(detect_compile_sdk)"
          DEFAULT_BUILD_TOOLS="${COMPILE_SDK}.0.0"

          log "Detected compileSdk: $COMPILE_SDK"
          log "Default build-tools target: $DEFAULT_BUILD_TOOLS"

          write_local_properties() {
            local sdk_dir="${ANDROID_SDK_ROOT:-${ANDROID_HOME:-}}"
            if [ -n "$sdk_dir" ]; then
              printf 'sdk.dir=%s\n' "$sdk_dir" > local.properties
              log "Wrote local.properties with sdk.dir=$sdk_dir"
            fi
          }

          accept_licenses() {
            yes | "$SDKMANAGER" --licenses >/dev/null || true
          }

          install_sdk_package() {
            local pkg="$1"
            local attempt
            for attempt in 1 2 3; do
              log "Installing SDK package: $pkg (attempt $attempt/3)"
              if "$SDKMANAGER" --install "$pkg"; then
                return 0
              fi
              sleep $((attempt * 5))
            done
            return 1
          }

          latest_build_tools_for_api() {
            local api="$1"
            "$SDKMANAGER" --list 2>/dev/null \
              | tr -d '\r' \
              | grep -oE "build-tools;${api}\.[0-9]+\.[0-9]+" \
              | sort -V \
              | tail -n 1 || true
          }

          ensure_android_packages() {
            accept_licenses
            install_sdk_package "platform-tools" || true
            install_sdk_package "platforms;android-${COMPILE_SDK}" || true

            if ! install_sdk_package "build-tools;${DEFAULT_BUILD_TOOLS}"; then
              local latest_bt
              latest_bt="$(latest_build_tools_for_api "$COMPILE_SDK")"
              if [ -n "$latest_bt" ]; then
                install_sdk_package "$latest_bt" || true
              fi
            fi
          }

          ensure_gradle_bootstrap() {
            if [ -f "./gradlew" ]; then
              chmod +x ./gradlew
            fi

            if [ ! -f "./gradle/wrapper/gradle-wrapper.jar" ]; then
              log "gradle-wrapper.jar missing. Trying to regenerate wrapper with system Gradle."
              gradle wrapper --gradle-version 8.2 --no-daemon || true
            fi

            if [ -f "./gradlew" ]; then
              chmod +x ./gradlew
              GRADLE_CMD="./gradlew"
            else
              GRADLE_CMD="gradle"
            fi

            log "Using Gradle command: $GRADLE_CMD"
          }

          fix_from_log() {
            local logfile="$1"
            local changed=1

            if grep -qiE 'SDK location not found|local.properties' "$logfile"; then
              write_local_properties
              changed=0
            fi

            if grep -qiE 'License .* not accepted|licenses not accepted' "$logfile"; then
              accept_licenses
              changed=0
            fi

            if grep -qiE 'GradleWrapperMain|gradle-wrapper\.jar' "$logfile"; then
              ensure_gradle_bootstrap
              changed=0
            fi

            if grep -qiE 'Permission denied' "$logfile" && [ -f "./gradlew" ]; then
              chmod +x ./gradlew
              changed=0
            fi

            local api
            api="$(grep -oE 'android-[0-9]+' "$logfile" | grep -oE '[0-9]+' | tail -n 1 || true)"
            if [ -n "$api" ]; then
              if grep -qiE 'failed to find target with hash string|platforms;android-|compileSdkVersion is not specified|compileSdk' "$logfile"; then
                install_sdk_package "platforms;android-${api}" || true
                changed=0
              fi
            fi

            local bt
            bt="$(grep -oE 'build-tools;[0-9]+\.[0-9]+\.[0-9]+|Build Tools revision [0-9]+\.[0-9]+\.[0-9]+' "$logfile" \
              | grep -oE '[0-9]+\.[0-9]+\.[0-9]+' | head -n 1 || true)"
            if [ -n "$bt" ]; then
              install_sdk_package "build-tools;${bt}" || true
              changed=0
            fi

            if grep -qiE 'Could not resolve|Failed to transform|Connection reset|Read timed out|502 Bad Gateway|503 Service Unavailable|Temporary failure' "$logfile"; then
              EXTRA_GRADLE_ARGS="--refresh-dependencies"
              changed=0
            fi

            return "$changed"
          }

          run_build_once() {
            local attempt="$1"
            local logfile="build-attempt-${attempt}.log"

            set +e
            "$GRADLE_CMD" \
              clean \
              assembleDebug \
              --stacktrace \
              --no-daemon \
              --no-configuration-cache \
              ${EXTRA_GRADLE_ARGS:-} \
              2>&1 | tee "$logfile"
            local exit_code="${PIPESTATUS[0]}"
            set -e

            return "$exit_code"
          }

          mkdir -p ci-logs
          write_local_properties
          ensure_android_packages
          ensure_gradle_bootstrap

          build_ok=0
          max_attempts=5

          for attempt in $(seq 1 "$max_attempts"); do
            log "Starting build attempt ${attempt}/${max_attempts}"
            EXTRA_GRADLE_ARGS="${EXTRA_GRADLE_ARGS:-}"

            if run_build_once "$attempt"; then
              build_ok=1
              log "Build succeeded on attempt ${attempt}"
              mv "build-attempt-${attempt}.log" "ci-logs/"
              break
            fi

            mv "build-attempt-${attempt}.log" "ci-logs/" || true

            log "Build failed on attempt ${attempt}"
            if fix_from_log "ci-logs/build-attempt-${attempt}.log"; then
              log "No known auto-fix matched this failure. Stopping retries."
              break
            fi

            log "Applied auto-fix. Retrying..."
            sleep 5
          done

          echo "=== APK files found ==="
          find . -type f \( -path "*/build/outputs/apk/*/*.apk" -o -path "*/build/outputs/apk/*.apk" \) | sed 's#^#- #'

          if [ "$build_ok" -ne 1 ]; then
            echo "Build did not succeed after retries."
            exit 1
          fi

      - name: Upload APKs
        if: always()
        uses: actions/upload-artifact@v4
        with:
          name: apk-files
          path: |
            **/build/outputs/apk/debug/*.apk
            **/build/outputs/apk/release/*.apk
          if-no-files-found: warn

      - name: Upload logs
        if: always()
        uses: actions/upload-artifact@v4
        with:
          name: build-logs
          path: |
            **/ci-logs/*.log
            **/build/reports/**
          if-no-files-found: warn