name: "GitHub Slug Action"
description: "GitHub Action to expose slug value of environment variables inside your GitHub workflow"
author: "Romain Lespinasse"
branding:
  icon: "minimize"
  color: "blue"
inputs:
  prefix:
    description: "Value to prepend to each generated variable"
    default: ""
    required: false
  slug-maxlength:
    description: "Max length of the slugified values"
    default: "63"
    required: true
  short-length:
    description: "Length of the shortify values (git default if empty)"
    required: false
runs:
  using: "composite"
  steps:
    - run: $GITHUB_ACTION_PATH/preflight.sh
      id: prefligth
      shell: bash
      env:
        INPUT_SLUG_MAXLENGTH: ${{ inputs.slug-maxlength }}
        INPUT_SHORT_LENGTH: ${{ inputs.short-length }}

    - uses: rlespinasse/slugify-value@v1.2.1
      with:
        key: GITHUB_REPOSITORY
        value: ${{ github.repository }}
        prefix: ${{ inputs.prefix }}
        slug-maxlength: ${{ inputs.slug-maxlength }}
    - uses: rlespinasse/slugify-value@v1.2.1
      with:
        key: GITHUB_REF
        prefix: ${{ inputs.prefix }}
        slug-maxlength: ${{ inputs.slug-maxlength }}
    - uses: rlespinasse/slugify-value@v1.2.0
      with:
        key: GITHUB_HEAD_REF
        prefix: ${{ inputs.prefix }}
        slug-maxlength: ${{ inputs.slug-maxlength }}
    - uses: rlespinasse/slugify-value@v1.2.1
      with:
        key: GITHUB_BASE_REF
        prefix: ${{ inputs.prefix }}
        slug-maxlength: ${{ inputs.slug-maxlength }}

    # Specific values
    - uses: rlespinasse/slugify-value@v1.2.1
      with:
        key: GITHUB_EVENT_REF
        value: ${{ github.event.ref }}
        prefix: ${{ inputs.prefix }}
        slug-maxlength: ${{ inputs.slug-maxlength }}

    # Calculated values
    - id: get-github-ref-name
      run: echo "::set-output name=github-ref-name::$(echo "${{ github.head_ref || github.ref }}" | cut -d/ -f3)"
      shell: bash
    - uses: rlespinasse/slugify-value@v1.2.1
      with:
        key: GITHUB_REF_NAME
        value: ${{ steps.get-github-ref-name.outputs.github-ref-name }}
        prefix: ${{ inputs.prefix }}
        slug-maxlength: ${{ inputs.slug-maxlength }}
    - id: get-github-repository-owner-part
      run: echo "::set-output name=github-repository-owner-part::$(echo $GITHUB_REPOSITORY | cut -d/ -f1)"
      shell: bash
    - uses: rlespinasse/slugify-value@v1.2.1
      with:
        key: GITHUB_REPOSITORY_OWNER_PART
        value: ${{ steps.get-github-repository-owner-part.outputs.github-repository-owner-part }}
        prefix: ${{ inputs.prefix }}
        slug-maxlength: ${{ inputs.slug-maxlength }}
    - id: get-github-repository-name-part
      run: echo "::set-output name=github-repository-name-part::$(echo $GITHUB_REPOSITORY | cut -d/ -f2)"
      shell: bash
    - uses: rlespinasse/slugify-value@v1.2.1
      with:
        key: GITHUB_REPOSITORY_NAME_PART
        value: ${{ steps.get-github-repository-name-part.outputs.github-repository-name-part }}
        prefix: ${{ inputs.prefix }}
        slug-maxlength: ${{ inputs.slug-maxlength }}

    # Short
    - uses: rlespinasse/shortify-git-revision@v1.4.0
      with:
        name: GITHUB_SHA
        short-on-error: true
        length: ${{ steps.prefligth.outputs.PREFLIGHT_SHORT_LENGTH }}
        prefix: ${{ inputs.prefix }}
    - uses: rlespinasse/shortify-git-revision@v1.4.0
      with:
        name: GITHUB_EVENT_PULL_REQUEST_HEAD_SHA
        revision: ${{ github.event.pull_request.head.sha }}
        short-on-error: true
        length: ${{ steps.prefligth.outputs.PREFLIGHT_SHORT_LENGTH }}
        prefix: ${{ inputs.prefix }}