name: Build liblsquic.a

on:
  push:
    branches: [ master ]
  pull_request:
    branches: [ master ]

jobs:
  build:
    runs-on: ubuntu-latest
    container: alpine:3.14

    outputs:
      LSQUIC_COMMIT: ${{ env.LSQUIC_COMMIT }}
      LSQUIC_VERSION: ${{ env.LSQUIC_VERSION }}

    steps:
      - name: Install action dependencies
        run: |
          apk add \
            binutils \
            bsd-compat-headers \
            build-base \
            cmake \
            git \
            go \
            libevent-dev \
            linux-headers \
            ninja \
            perl \
            tar \
            zlib-dev \
            zlib-static

      - uses: actions/checkout@v2

      - name: Load BORINGSSL_COMMIT and LSQUIC_COMMIT
        run: ./env.sh

      - name: Cache BoringSSL
        id: cache-boringssl
        uses: actions/cache@v2
        with:
          path: ./boringssl
          key: boringssl-${{ env.BORINGSSL_COMMIT }}

      - name: Build BoringSSL
        if: steps.cache-boringssl.outputs.cache-hit != 'true'
        run: |
          git clone https://boringssl.googlesource.com/boringssl
          cd boringssl
          git checkout $BORINGSSL_COMMIT
          cmake -DCMAKE_BUILD_TYPE=Release -GNinja .
          ninja

      - name: Build LSQUIC
        if: steps.cache-lsquic.outputs.cache-hit != 'true'
        run: |
          git clone https://github.com/litespeedtech/lsquic.git
          cd lsquic
          git checkout $LSQUIC_COMMIT
          git submodule init
          git submodule update
          cmake -DBORINGSSL_DIR=../boringssl .
          make

      - name: Test LSQUIC
        if: steps.cache-lsquic.outputs.cache-hit != 'true'
        run: |
          cd lsquic
          make test

      - name: Set LSQUIC_VERSION
        run: |
          cd lsquic
          LSQUIC_VERSION=$(git describe --contains $LSQUIC_COMMIT)
          echo "LSQUIC_VERSION=$LSQUIC_VERSION" >> $GITHUB_ENV
          echo "LSQUIC_VERSION=$LSQUIC_VERSION"

      - name: Prepare artifact / release asset
        run: |
          mkdir dist
          cd dist
          ar -x ../boringssl/ssl/libssl.a
          ar -x ../boringssl/crypto/libcrypto.a
          ar -x ../lsquic/src/liblsquic/liblsquic.a
          ar rc liblsquic.a *.o
          rm *.o
          strip --strip-unneeded liblsquic.a
          ranlib liblsquic.a

          echo "liblsquic.a $LSQUIC_VERSION (https://github.com/litespeedtech/lsquic/commit/$LSQUIC_COMMIT)" > version.txt

      - uses: actions/upload-artifact@v2
        with:
          name: liblsquic.zip
          path: dist/

  release:
    runs-on: ubuntu-latest

    if: github.ref == 'refs/heads/master' && github.event_name == 'push'

    needs: build
    env:
      LSQUIC_VERSION: ${{ needs.build.outputs.LSQUIC_VERSION }}
      LSQUIC_COMMIT: ${{ needs.build.outputs.LSQUIC_COMMIT }}

    steps:
      - uses: actions/download-artifact@v2
        with:
          name: liblsquic.zip

      - name: Create release
        id: create_release
        uses: actions/create-release@v1
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          tag_name: ${{ env.LSQUIC_VERSION }}
          release_name: ${{ env.LSQUIC_VERSION }}
          body: liblsquic.a ${{ env.LSQUIC_VERSION }} (https://github.com/litespeedtech/lsquic/commit/${{ env.LSQUIC_COMMIT }})

      - name: Upload release asset
        uses: actions/upload-release-asset@v1
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          upload_url: ${{ steps.create_release.outputs.upload_url }}
          asset_path: liblsquic.a
          asset_name: liblsquic.a
          asset_content_type: application/x-archive