name: Update lockfile

on:
  schedule:
    - cron: '30 6 * * *'
  push:
    branches:
      - master

jobs:
  update-lockfile:
    name: Update lockfile
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
        with:
          ref: master

      - name: Prepare
        env:
          NVIM_TAG: stable
        run: |
          wget https://github.com/stedolan/jq/releases/download/jq-1.6/jq-linux64
          mv ./jq-linux64 /tmp/jq
          chmod +x /tmp/jq
          wget https://github.com/neovim/neovim/releases/download/${NVIM_TAG}/nvim.appimage
          chmod u+x nvim.appimage
          mkdir -p ~/.local/share/nvim/site/pack/nvim-treesitter/start
          ln -s $(pwd) ~/.local/share/nvim/site/pack/nvim-treesitter/start

      - name: Update parsers
        env:
          SKIP_LOCKFILE_UPDATE_FOR_LANGS: verilog,gleam,nix
        run: |
          ./nvim.appimage --headless -c "luafile ./scripts/write-lockfile.lua" -c "q"
          # Pretty print
          cp lockfile.json /tmp/lockfile.json
          cat /tmp/lockfile.json | /tmp/jq --sort-keys > lockfile.json

      - name: Commit changes
        run: |
          git config user.name "GitHub"
          git config user.email "noreply@github.com"
          git add lockfile.json
          git commit -m "Update lockfile.json" || echo 'No commit necessary!'
          git clean -xf

      - name: Create Pull Request
        uses: peter-evans/create-pull-request@v3
        with:
          commit-message: Update lockfile.json
          title: Update lockfile.json
          branch: update-lockfile-pr
          base: ${{ github.head_ref }}
          draft: true