name: tests

on:
  pull_request:
  push:
    branches:
      - main

jobs:
  tests:
    runs-on: ubuntu-latest
    steps:
      - name: checkout repo
        uses: actions/checkout@v3
  
      - name: install nix
        uses: cachix/install-nix-action@v20

      - name: configure cache
        uses: DeterminateSystems/magic-nix-cache-action@v1
  
      - name: check flake
        run: nix -Lv flake check
  
      - name: check nix parsing
        run: nix -Lv develop -c evalnix

      - name: get latest tag
        id: latest
        uses: actions-ecosystem/action-get-latest-tag@v1

      - name: parse changelog
        id: changelog
        uses: coditory/changelog-parser@v1

      - name: create release
        id: release
        uses: softprops/action-gh-release@v1
        if: github.ref == 'refs/heads/main' && steps.changelog.outputs.version != steps.latest.outputs.tag
        with:
          files: ${{ steps.package.outputs.path }}
          body: ${{ steps.changelog.outputs.description }}
          tag_name: ${{ steps.changelog.outputs.version }}