name: Lockfile checks

on:
  push:
    branches: [main]
    paths:
      - yarn.lock
  pull_request:
    # We want all branches so we configure types to be the GH default again
    types: [opened, synchronize, reopened]
    paths:
      - yarn.lock

env:
  YARN_ENABLE_GLOBAL_CACHE: false

jobs:
  lint_lockfile:
    name: Lint yarn.lock
    runs-on: ubuntu-latest
    steps:
      - name: Checkout sources
        uses: actions/checkout@v4
      - name: Get yarn cache directory path
        id: yarn-cache-dir-path
        run:
          echo "dir=$(corepack yarn config get cacheFolder)" >> $GITHUB_OUTPUT

      - uses: actions/cache@v4
        id: yarn-cache # use this to check for `cache-hit` (`steps.yarn-cache.outputs.cache-hit != 'true'`)
        with:
          path: ${{ steps.yarn-cache-dir-path.outputs.dir }}
          key: ${{ runner.os }}-yarn-${{ hashFiles('**/yarn.lock') }}
          restore-keys: |
            ${{ runner.os }}-yarn-
      - name: Install Node.js
        uses: actions/setup-node@v4
        with:
          node-version: lts/*
      - name: Install dependencies
        run: corepack yarn install --immutable --mode=skip-build