action.yml

name: 'Standard Ruby'
description: 'A GitHub Action that lints and auto-fixes your Ruby code with Standard Ruby'
author: 'Justin Searls <searls@gmail.com>'

inputs:
  ruby-version:
    description: 'The Ruby version specifier to pass to ruby/setup-ruby'
    required: false
    default: 'ruby' # Defaults to the latest stable CRuby version
  autofix:
    description: 'Whether autofixes should be committed back to the branch'
    required: false
    default: 'true'
  workdir:
    description: "The working directory from which to run this action's commands. Default '.'"
    default: '.'

runs:
  using: composite

  steps:
    - name: Checkout code
      uses: actions/checkout@v4

    - name: Check for .ruby-version file
      id: use_ruby_version_or_default
      shell: bash
      working-directory: ${{ inputs.workdir }}
      run: |
        if [ -f .ruby-version ]; then
          echo "Using Ruby version from .ruby-version file"
          RUBY_VERSION=$(cat .ruby-version)
          echo "ruby-version=$RUBY_VERSION" >> $GITHUB_ENV
        else
          echo "No .ruby-version file found, using default"
        fi

    - name: Set up Ruby
      uses: ruby/setup-ruby@v1
      with:
        ruby-version: ${{ env.ruby-version || inputs.ruby-version }}
        bundler-cache: true
        working-directory: ${{ inputs.workdir }}

    - name: Run Standard Ruby with autofix
      id: standardrb
      shell: bash
      working-directory: ${{ inputs.workdir }}
      run: bundle exec standardrb ${{ inputs.autofix == 'true' && '--fix' || '' }} --format github --format "Standard::Formatter"
      continue-on-error: true

    - name: Check for modified files
      id: check_changes
      shell: bash
      working-directory: ${{ inputs.workdir }}
      run: |
        if [ -n "$(git diff --name-only --diff-filter=M)" ]; then
          echo "standardrb_autofixes_found=true" >> $GITHUB_ENV
        else
          echo "standardrb_autofixes_found=false" >> $GITHUB_ENV
        fi

    - name: Commit autofixes
      shell: bash
      if: env.standardrb_autofixes_found == 'true'
      run: |
        echo "::group::Committing Standard Fixes"
        git config --global user.name 'standard-ruby-action[bot]'
        git config --global user.email 'standard-ruby-action[bot]@users.noreply.github.com'
        # Add any files that were changed by Standard Ruby
        git diff --name-only --diff-filter=M | xargs git add
        git commit -m "Apply Standard Ruby autofixes" || echo "No changes to commit"
        git push
        echo "::endgroup::"

    - name: Fail the build if Standard Ruby failed
      shell: bash
      if: ${{ steps.standardrb.outcome == 'failure' }}
      run: |
        echo "::error::Standard Ruby found issues in your code."
        exit 1

branding:
  icon: 'code'
  color: 'gray-dark'