name: build and cache packages
on:
  workflow_dispatch:
    inputs:
      package:
        description: "package to build"
        required: false
        type: string
env:
  ATTIC_TOKEN: ${{ secrets.ATTIC_TOKEN }}
  NIX_CONFIG: |
    show-trace = true
    experimental-features = nix-command flakes
    accept-flake-config = true
    secret-key-files = /home/runner/cache-priv-key.pem
    extra-substituters = https://nixcache.cy7.sh
    extra-trusted-public-keys = nixcache.cy7.sh:DN3d1dt0wnXfTH03oVmTee4KgmdNdB0NY3SuzA8Fwx8=
  TERM: ansi
  AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}
  AWS_SECRET_ACCESS_KEY: ${{ secrets. AWS_SECRET_ACCESS_KEY }}
jobs:
  build-packages:
    strategy:
      fail-fast: false
      matrix:
        package:
          - ${{ inputs.package }}
        os:
          - ubuntu-latest
          - ubuntu-24.04-arm
          # - macos-latest
          # - macos-13
    runs-on: ${{ matrix.os }}
    steps:
      - name: setup binary cache key
        run: echo "${{ secrets.NIX_CACHE_SECRET_KEY }}" >> /home/runner/cache-priv-key.pem
      - name: Install Nix
        uses: cachix/install-nix-action@v30
      - name: Sync repository
        uses: actions/checkout@v4
        with:
          persist-credentials: false
      - run: nix build -L ${{ matrix.package }}
      - name: cache result
        if: always()
        run: |
          nix copy --all --to 's3://nixcache?endpoint=s3.cy7.sh' --verbose
          nix store sign --store 's3://nixcache?endpoint=s3.cy7.sh' -k /home/runner/cache-priv-key.pem --all
      - name: prepare tarball to upload
        run: nix run github:nixos/nixpkgs#gnutar hcvf result.tar result
      - name: upload result
        uses: actions/upload-artifact@v4
        with:
          name: ${{ matrix.os }}
          path: result.tar
          if-no-files-found: error