build.yaml

name: build nixos hosts

on:
  push:
    branches:
      - ci

permissions:
  contents: write

jobs:
  define-matrix:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - run: |
          echo -n "hosts=" && ls hosts | sed -n 's/\.nix$//p' | jq -R | jq -sc >> "$GITHUB_OUTPUT"
          echo -n "hosts=" && ls hosts | sed -n 's/\.nix$//p' | jq -R | jq -sc

  test:
    runs-on: ubuntu-latest
    needs: define-matrix
    steps:
      - run: echo ${{ needs.define-matrix.outputs.hosts }}

  build:
    runs-on: ubuntu-latest
    needs: define-matrix
    strategy:
      matrix:
        host: ${{ fromJSON(needs.define-matrix.outputs.hosts) }}
    steps:
      - uses: actions/checkout@v4
      - uses: DeterminateSystems/nix-installer-action@v14
      - uses: DeterminateSystems/magic-nix-cache-action@v8
      - uses: DeterminateSystems/flake-checker-action@v9

      - name: Build NixOS hosts
        run: nix develop -c colmena build --on ${{ matrix.host }}