cache.yml

name: Cache
on:
  workflow_dispatch:
    inputs:
      versioned-package-manager:
        type: string
        description: "versioned package manager (e.g. yarn@4.5.3)"
        required: true

run-name: Cache ${{ inputs.versioned-package-manager }}
jobs:
  cache:
    name: Cache
    runs-on: ubuntu-latest
    timeout-minutes: 5
    permissions:
      contents: write
    steps:
    - name: Checkout
      uses: actions/checkout@v4

    - shell: bash
      env:
        CACHE_DIRECTORY: .cache/node/corepack/v1
        VERSIONED_PACKAGE_MANAGER: ${{ inputs.versioned-package-manager }}
        TRACE: ${{ github.run_attempt > 1 && '1' || '' }}
        ACTOR: ${{ github.actor }}
        ACTOR_ID: ${{ github.actor_id }}
      run: |
        : Get package manager
        if [ -n "$TRACE" ]; then
          set -x
        fi
        npm install -g corepack
        cache_directory=$(
          cd;
          mkdir -p "$CACHE_DIRECTORY"
          cd "$CACHE_DIRECTORY"
          pwd
        )
        package_manager=${VERSIONED_PACKAGE_MANAGER%@*}
        git checkout --orphan="new"
        git rm --cached -r .
        git clean -d -f
        commit() {
          git -c user.name="$ACTOR" -c user.email="$ACTOR_ID+$ACTOR@users.noreply.github.com" commit -m "$1"
        }
        corepack install -g "$VERSIONED_PACKAGE_MANAGER"
        mv "$cache_directory"/* .
        git add .
        commit "$VERSIONED_PACKAGE_MANAGER"
        git tag "$VERSIONED_PACKAGE_MANAGER"
        git push origin "$VERSIONED_PACKAGE_MANAGER"