action.yml

name: "Check WIP"
description: "Checks for WIP patterns in Titles"
branding:
  icon: box
  color: blue
inputs:
  title:
    description: "Text to perform pattern match against"
    required: true
    default: "${{ github.event.pull_request.title }}"
  regex:
    description: "Regex pattern to match in title"
    required: true
    # starts with zero or more leading whitespace chars, WIP and zero or more colons
    default: "^[[:space:]]*(WIP)+(:)*"
  debug:
    description: "Enable verbose logging"
    required: false
    default: "false"
runs:
  using: "composite"
  steps:
    - shell: bash
      env:
        TITLE: ${{ inputs.title }}
        REGEX: ${{ inputs.regex }}
        DEBUG: ${{ inputs.debug }}
      run: |
        set -e

        if [[ ${DEBUG} == "true" ]]; then 
          echo "Enabling debug output"
          set -x
        fi
        
        # TODO (@mgasch): make configurable
        # case-insensitive
        shopt -s nocasematch
        
        if [[ -z ${TITLE} ]]; then 
          echo "::error::title input must be set";
          exit 1
        fi
        
        if [[ -z ${REGEX} ]]; then 
          echo "::error::regex input must be set";
          exit 1
        fi
        
        if [[ ${TITLE} =~ ${REGEX} ]]; then
          echo "::error::Title marked as work in progress"
          exit 1
        else
          echo "Title not marked as work in progress"
        fi
        
        # unset nocasematch option
        shopt -u nocasematch

        if [[ ${DEBUG} == "true" ]]; then 
          echo "Disabling debug output"
          set +x
        fi