name: 'Set up Emacs'
description: 'Install a specific Emacs version for use in your workflow.'
author: 'Steve Purcell'
inputs:
  version:
    description: 'The version of Emacs to install, e.g. "24.3", or "snapshot" for a recent development version.'
runs:
  using: 'composite'
  steps:
    - name: Restore cached version
      id: cache-restore
      uses: https://code.forgejo.org/actions/cache/restore@v4
      if: inputs.version != 'snapshot'
      with:
        path: |
          /nix/store
        key: ${{ inputs.version }}-${{ hashFiles('**/flake.lock') }}
    - run: ${{ github.action_path }}/install.sh
      shell: bash
      env:
        INPUT_VERSION: ${{ inputs.version }}
    - name: Cache version
      id: cache-put
      uses: https://code.forgejo.org/actions/cache/save@v4
      if: inputs.version != 'snapshot'
      with:
        path: |
          /nix/store
        key: ${{ inputs.version }}-${{ hashFiles('**/flake.lock') }}