lint.yml

name: Lint Check on Push

# branches: [main]
#   → mainブランチ向けのPRのみで発火します
# types: [opened, synchronize, reopened, ready_for_review]
#   → PRが作成された時・更新された時・下書きからreadyにした時だけ実行
# closed や merged などは含まれません
# Draft PRでは自動で実行されません
# Draft中はsynchronizeやopenedイベントでもGitHub側でWorkflow実行がスキップされます
# ただし「Draft → Ready」に切り替えた瞬間のみ ready_for_review で実行されます
on:
  pull_request:
    types: [opened, reopened, synchronize, requested_review, ready_for_review]
    branches:
      - main

# 同じブランチに新しいコミットが追加された場合、前のActionsの実行をキャンセルする
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

jobs:
  lint:
    if: github.event.pull_request.draft == false
    runs-on: ubuntu-latest
    name: Lint Changed Modules
    env:
      NDK_VERSION: 27.3.13750724
      ANDROID_SDK_ROOT: /usr/local/lib/android/sdk
      ANDROID_HOME: /usr/local/lib/android/sdk
      GPR_USER: ${{ secrets.GPR_USER }}
      GPR_TOKEN: ${{ secrets.GPR_TOKEN }}

    steps:
      - name: Check variables
        run: |
          if [ -z "$GPR_USER" ] || [ -z "$GPR_TOKEN" ]; then
            echo "GPR credentials are not available"
            exit 1
          fi

      - name: Checkout
        uses: actions/checkout@v6
        with:
            submodules: recursive
            token: ${{ secrets.GITHUB_TOKEN }}

      - name: Write gradle.properties
        run: |
          {
            echo "android.ndkVersion=${NDK_VERSION}"
          } >> gradle.properties

      - name: Set NDK environment
        run: |
          echo "ANDROID_NDK_ROOT=/usr/local/lib/android/sdk/ndk/${NDK_VERSION}" >> $GITHUB_ENV
          echo "NDK_VERSION=${NDK_VERSION}" >> $GITHUB_ENV

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

#      - name: Install Android NDK $NDK_VERSION
#        uses: android-actions/setup-android@v3
#        with:
#          packages: "build-tools;36.0.0 ndk;${{ env.NDK_VERSION }} platform-tools platforms;android-35"

      - name: Read module list from projects.properties
        id: define
        run: |
          modules=$(grep '^modules=' projects.properties | cut -d= -f2 | tr ',' ' ')
          echo "modules=$modules" >> $GITHUB_OUTPUT
          # here_sdk_name=$(grep '^hereSdkAarName=' gradle.properties | cut -d= -f2 | tr -d '\r')
          # echo "here_sdk_artifact=$here_sdk_name" >> $GITHUB_OUTPUT

      - name: Restore hash cache
        uses: actions/cache/restore@v5
        with:
          key: lint-hash-cache-${{ github.base_ref || 'main' }}
          path: .lint-hash-cache/
          restore-keys: |
            lint-hash-cache-

      - name: Detect changed modules by hashing
        id: detect
        env:
          MODULES: ${{ steps.define.outputs.modules }}
        run: |
          changed_modules=""
          mkdir -p .lint-hash-cache

          for module in $MODULES; do
            if [ "$module" != "mapconductor-bom" ]; then
              # src配下のKotlinとXMLファイルのハッシュを計算
              if [ -d "$module/src" ]; then
                hash=$(find "$module/src" -type f -name "*.kt" -print0 2>/dev/null | \
                      sort -z | xargs -0 sha256sum 2>/dev/null | sha256sum | cut -d ' ' -f1)
              else
                hash="empty"
              fi

              CACHE_KEY_FILE=".lint-hash-cache/${module//\//-}.txt"

              # ハッシュベースの比較
              if [ -f "$CACHE_KEY_FILE" ]; then
                old_hash=$(cat "$CACHE_KEY_FILE")
                if [ "$hash" == "$old_hash" ]; then
                  echo "Module $module unchanged (hash match)"
                  continue
                else
                  echo "Module $module changed (hash mismatch: $old_hash -> $hash)"
                fi
              else
                echo "Module $module changed (no previous hash)"
              fi

              changed_modules="${changed_modules:+$changed_modules }$module"
              echo "$hash" > "$CACHE_KEY_FILE"
            fi
          done

          # 余分な空白や改行を除去
          changed_modules=$(echo "$changed_modules" | xargs)
          echo "Changed modules: $changed_modules"
          echo "changed_modules=$changed_modules" >> $GITHUB_OUTPUT

      - name: Fetch HERE SDK mock artifact
        if: steps.detect.outputs.changed_modules != ''
        run: |
          mkdir -p libs
          target_path="libs/heresdk-explore-mock-4.23.2.0.210004.jar"
          echo "Downloading HERE SDK mock artifact to $target_path"
          curl --fail --show-error --silent --location \
            -u "$GPR_USER:$GPR_TOKEN" \
            -o "$target_path" \
            "https://raw.githubusercontent.com/MapConductor/here-sdk-mocks/main/heresdk-explore-mock-4.23.2.0.210004.jar"
          if [ ! -s "$target_path" ]; then
            echo "Failed to download HERE SDK mock artifact"
            exit 1
          fi

      - name: Run ktlintCheck
        if: steps.detect.outputs.changed_modules != ''
        run: |
          echo "Running ktlintCheck for modules: ${{ steps.detect.outputs.changed_modules }}"
          for module in ${{ steps.detect.outputs.changed_modules }}; do
            echo "Running ktlintCheck for $module"
            if ./gradlew ":$module:ktlintCheck"; then
              echo "✅ ktlintCheck passed for $module"
            else
              echo "❌ ktlintCheck failed for $module"
              exit 1
            fi
          done

      - name: Run Android Lint
        if: steps.detect.outputs.changed_modules != ''
        run: |
          echo "Running Android Lint for modules: ${{ steps.detect.outputs.changed_modules }}"
          for module in ${{ steps.detect.outputs.changed_modules }}; do
            echo "Running lint for $module"
            if ./gradlew ":$module:lint"; then
              echo "✅ Android Lint passed for $module"
            else
              echo "❌ Android Lint failed for $module"
              exit 1
            fi
          done

      - name: Save hash cache
        if: success()
        uses: actions/cache/save@v5
        with:
          key: lint-hash-cache-${{ github.base_ref || 'main' }}-${{ github.run_id }}
          path: .lint-hash-cache/

      - name: No modules to lint
        if: steps.detect.outputs.changed_modules == ''
        run: |
          echo "🎉 No modules have changed - skipping lint checks"