name: Build
on:
  push:
    branches: [main]
  pull_request:
    branches: [main]

jobs:
  build:
    runs-on: ubuntu-latest
    container:
      image: ghcr.io/flipstone/haskell-tools:debian-ghc-9.10.3-5d6640d
    env:
      STACK_ROOT: /tmp/.stack-root
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Cache Stack
        uses: actions/cache@v4
        with:
          path: /tmp/.stack-root
          key: stack-${{ runner.os }}-${{ hashFiles('stack.yaml', 'package.yaml', 'converge.cabal') }}
          restore-keys: stack-${{ runner.os }}-

      - name: Build
        run: stack build --copy-bins --local-bin-path /tmp/build

      - name: Compress with UPX
        run: |
          UPX_VERSION="5.1.1"
          curl -fsSL "https://github.com/upx/upx/releases/download/v${UPX_VERSION}/upx-${UPX_VERSION}-amd64_linux.tar.xz" \
            | tar -xJ -C /tmp
          /tmp/upx-${UPX_VERSION}-amd64_linux/upx /tmp/build/converge

      - name: Upload artifact
        uses: actions/upload-artifact@v4
        with:
          name: converge
          path: /tmp/build/converge
          compression-level: 0