action.yml

name: 'setup-gh'
description: 'Setup Github CLI on workflows with custom linux container'

branding:
  icon: 'play-circle'
  color: 'blue'
  
inputs:
  repository: 
    description: 'Repository setting for Github CLI'
    required: false
    default: ${{ github.repository }}
  token:
    description: 'Authentication token setting for Github CLI'
    required: false
    default: ${{ github.token }}

runs:
  using: 'composite'
  steps:
    # This is only triggered on Linux os, 
    # as the only case for which we need to install gh is 
    # when we use an custom container. 
    # For which only Linux runner can config one.
    - name: Install gh
      if: runner.os == 'Linux'
      shell: bash
      run: |
        # This script installs Github CLI according to the official guide:
        # See: https://github.com/cli/cli/blob/trunk/docs/install_linux.md
        
        if type -p gh > /dev/null
        then
          echo "Github Cli has already been installed"
        else
          echo "::group::Install Github CLI"
        
          type -p curl >/dev/null || (apt-get update && apt-get install curl -y)
        
          curl -fsSL https://cli.github.com/packages/githubcli-archive-keyring.gpg | dd of=/usr/share/keyrings/githubcli-archive-keyring.gpg &&
          chmod go+r /usr/share/keyrings/githubcli-archive-keyring.gpg &&
          echo "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/githubcli-archive-keyring.gpg] https://cli.github.com/packages stable main" | tee /etc/apt/sources.list.d/github-cli.list > /dev/null &&
          apt-get update  && apt-get install gh -y
        
          echo "::endgroup::"
        fi

    - name: Set Environment Variables
      shell: bash
      run: |
        echo "GH_REPO=${{ inputs.repository }}" >> $GITHUB_ENV
        echo "GH_TOKEN=${{ inputs.token }}" >> $GITHUB_ENV

    - name: Print gh version
      shell: bash
      run: gh --version