action.yml

name: becwright
# The Marketplace caps description at 125 chars. The full rationale: a commit
# hook can be skipped with `git commit --no-verify`; a required CI check cannot —
# this closes that gap and makes the rules infrastructure, not a suggestion.
description: >-
  Enforce becwright rules (BECs) on the files a PR changes — a required CI check
  that can't be skipped like a local hook.
author: DataDave-Dev
branding:
  icon: shield
  color: red

inputs:
  base:
    description: >-
      Git ref to diff against. Defaults to the PR base branch
      (origin/$GITHUB_BASE_REF) on pull_request events, or the repository default
      branch otherwise. Only files changed vs this ref are checked.
    required: false
    default: ''
  version:
    description: >-
      pip requirement specifier used to install becwright — e.g. "becwright",
      "becwright==0.4.0", or "." to install the checked-out repo (for dogfooding).
    required: false
    default: becwright
  python-version:
    description: Python version used to run becwright.
    required: false
    default: '3.x'
  args:
    description: Extra arguments appended to `becwright check` (e.g. "--json").
    required: false
    default: ''

runs:
  using: composite
  steps:
    - name: Set up Python
      uses: actions/setup-python@v5
      with:
        python-version: ${{ inputs.python-version }}

    - name: Install becwright
      shell: bash
      run: pip install "${{ inputs.version }}"

    - name: Check changed files
      shell: bash
      env:
        BEC_BASE: ${{ inputs.base }}
        BEC_ARGS: ${{ inputs.args }}
        GH_BASE_REF: ${{ github.base_ref }}
        GH_DEFAULT_BRANCH: ${{ github.event.repository.default_branch }}
      run: |
        set -euo pipefail
        base="$BEC_BASE"
        if [ -z "$base" ]; then
          if [ -n "${GH_BASE_REF:-}" ]; then
            base="origin/${GH_BASE_REF}"
          else
            base="origin/${GH_DEFAULT_BRANCH}"
          fi
        fi
        # Make the base ref available even if the checkout was shallow. Harmless if
        # it is already present; requires fetch-depth: 0 for the merge-base to exist.
        branch="${GH_BASE_REF:-$GH_DEFAULT_BRANCH}"
        if [ -n "$branch" ]; then
          git fetch --no-tags --quiet origin "$branch" || true
        fi
        echo "becwright: checking files changed vs ${base}"
        becwright check --diff "$base" $BEC_ARGS