action.yml

name: "Checkout Action"
description: "Cleanup the remaining traces of previous jobs in self hosted runner and checkout the repository"

inputs:
  actions-repo:
    description: "The private actions repository to checkout in the .github/actions folder"
    required: false
    default: ""
  actions-ssh-key:
    description: "The ssh deploy key used to clone the actions private repository"
    required: false
    default: ""
  fetch-depth:
    description: "Number of commits to fetch. 0 indicates all history for all branches and tags."
    required: false
    default: 1

runs:
  using: composite
  steps:
    # When mixing jobs on the host and inside containers, some folders could have root ownership and break the next builds
    # https://github.com/actions/runner/issues/434#issuecomment-992865457
    - name: Cleanup workspace
      uses: docker://alpine
      with:
        args: /bin/sh -c "rm -rf /github/workspace/.* || rm -rf /github/workspace/*"

    - name: Checkout the current repository
      uses: actions/checkout@v4
      with:
        fetch-depth: inputs.fetch-depth

    - name: Set variables
      if: inputs.actions-repo != '' && inputs.actions-ssh-key != ''
      id: actions-set-vars
      shell: bash
      run: |
        repo_basepath=$(echo "${{ inputs.actions-repo }}" | cut -d '@' -f1)
        repo_ref=$(echo "${{ inputs.actions-repo }}" | cut -d '@' -f2)
        echo "repo-basepath=$(echo ${repo_basepath})" >> $GITHUB_OUTPUT
        echo "repo-ref=$(echo ${repo_ref})" >> $GITHUB_OUTPUT

    - name: Checkout the actions private repository
      if: inputs.actions-repo != '' && inputs.actions-ssh-key != ''
      uses: actions/checkout@v4
      with:
        repository: ${{ steps.actions-set-vars.outputs.repo-basepath }}
        ref: ${{ steps.actions-set-vars.outputs.repo-ref }}
        path: .github/actions/${{ steps.actions-set-vars.outputs.repo-basepath }}
        ssh-key: ${{ inputs.actions-ssh-key }}