validate-story.yml

name: validate-story

on:
  workflow_dispatch:
  pull_request:
  push:
    branches: [main]

jobs:
  detect:
    name: Detect non-markdown changes
    runs-on: ubuntu-latest
    outputs:
      run_validate: ${{ steps.detect.outputs.run_validate }}
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Determine base ref
        id: base
        run: |
          if [ "${{ github.event_name }}" = "pull_request" ]; then
            echo "base=${{ github.event.pull_request.base.sha }}" >> "$GITHUB_OUTPUT"
          elif [ -n "${{ github.event.before }}" ] && [ "${{ github.event.before }}" != "0000000000000000000000000000000000000000" ]; then
            echo "base=${{ github.event.before }}" >> "$GITHUB_OUTPUT"
          else
            if git rev-parse HEAD^ >/dev/null 2>&1; then
              echo "base=$(git rev-parse HEAD^)" >> "$GITHUB_OUTPUT"
            else
              echo "base=$(git rev-parse HEAD)" >> "$GITHUB_OUTPUT"
            fi
          fi

      - name: Detect non-markdown changes
        id: detect
        run: |
          set -euo pipefail
          base_ref="${{ steps.base.outputs.base }}"
          changed_files=$(git diff --name-only "$base_ref"...HEAD || true)
          if [ -z "$changed_files" ]; then
            run_validate=true
          else
            non_md=$(printf "%s\n" "$changed_files" | grep -vE '\.md$' || true)
            if [ -z "$non_md" ]; then
              run_validate=false
            else
              run_validate=true
            fi
          fi
          {
            echo "run_validate=${run_validate}"
            printf 'changed_files<<EOF\n%s\nEOF\n' "$changed_files"
          } >> "$GITHUB_OUTPUT"

  validate:
    needs: detect
    if: needs.detect.outputs.run_validate == 'true'
    runs-on: ubuntu-latest
    env:
      CI: true

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

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: '20'
          cache: 'npm'

      - name: Install dependencies
        run: npm ci

      - name: Prepare results dir
        run: mkdir -p results

      - name: Run validate-story
        run: node scripts/validate-story.js --glob "web/stories/**/*.ink" --max-steps 500 --output results/validate-story.json

      - name: Upload results
        if: failure() || always()
        uses: actions/upload-artifact@v4
        with:
          name: validate-story-results
          path: results/**
          if-no-files-found: ignore