bump-nix.yml

name: Bump Nix

on:
  push:
    tags:
      - 'v-test'

jobs:
  update-flake:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout repository
        uses: actions/checkout@v3

      - name: Set up Nix
        run: |
          curl -L https://nixos.org/nix/install | sh
          export PATH=$PATH:/home/runner/.nix-profile/bin

      - name: Extract version from tag
        id: version
        run: echo "VERSION=${GITHUB_REF#refs/tags/v}" >> $GITHUB_ENV

      - name: Update version
        run: |
          sed -i 's/version = "[^"]*";/version = "${{ env.VERSION }}";/' flake.nix

      - name: Update flake.lock
        run: |
          nix --version
          nix flake update

      - name: Commit & Push
        run: |
          git config --global user.name 'github-actions'
          git config --global user.email 'github-actions@users.noreply.github.com'
          git add flake.lock flake.nix
          git commit -m 'bump nix to ${{ env.VERSION }}'
          git push origin HEAD:main
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}