name: Continuous Integration Checks

on: [push, pull_request]

jobs:
  check_bindings:
    runs-on: ubuntu-20.04
    env:
      TOOLCHAIN: stable
    steps:
      - name: Install native Rust toolchain, Valgrind, and build utilitis
        run: |
          sudo apt-get update
          sudo apt-get -y dist-upgrade
          sudo apt-get -y install cargo valgrind lld git g++ clang curl
      - name: Checkout source code
        uses: actions/checkout@v2
      - name: Install cbindgen
        run: cargo install --force cbindgen
      - name: Checkout Rust-Lightning and LDK-C-Bindings git
        run: |
          git config --global user.email "ldk-ci@example.com"
          git config --global user.name "LDK CI"
          # Note this is a different endpoint, as we need one non-upstream commit!
          git clone https://git.bitcoin.ninja/rust-lightning
          cd rust-lightning
          git checkout origin/2021-03-java-bindings-base
          cd ..
          git clone https://github.com/lightningdevkit/ldk-c-bindings
      - name: Install Swift Toolchain
        run: |
          curl https://swift.org/builds/swift-5.4.2-release/ubuntu2004/swift-5.4.2-RELEASE/swift-5.4.2-RELEASE-ubuntu20.04.tar.gz > swift-5.4.2-RELEASE-ubuntu20.04.tar.gz
          if [ "$(sha256sum swift-5.4.2-RELEASE-ubuntu20.04.tar.gz | awk '{ print $1 }')" != "86b849d9f6ba2eda4e12ea5eafaa0748bffcd6272466b514c2b0fd4a829c63a4" ]; then
            echo "Bad hash"
            exit 1
          fi
          tar xvvf swift-5.4.2-RELEASE-ubuntu20.04.tar.gz
      - name: Rebuild C bindings
        run: |
          cd ldk-c-bindings
          ./genbindings.sh ../rust-lightning true
          cd ..
      - name: Copy new headers into bindings
        run: |
          cp ldk-c-bindings/lightning-c-bindings/include/*.h LDKCHeaders/Headers/
          cp ldk-c-bindings/ldk-net/ldk_net.h LDKCHeaders/Headers/
      - name: Build and test bindings
        run: |
          cd LDKSwift
          LDK_C_BINDINGS_BASE="../ldk-c-bindings" RUST_BACKTRACE=1 ../swift-5.4.2-RELEASE-ubuntu20.04/usr/bin/swift test
      - name: Check that the latest headers are in the swift repo
        run: |
          git diff --exit-code