template-check.yml

name: Template Check

on:
  pull_request:
    paths:
      - 'vup/srcpkgs/**/*'

permissions:
  contents: read

jobs:
  validate:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout PR
        uses: actions/checkout@v7
        with:
          path: pr
          fetch-depth: 0

      - name: Checkout Base Scripts
        uses: actions/checkout@v7
        with:
          ref: ${{ github.event.pull_request.base.sha }}
          path: base
          fetch-depth: 0

      - name: Validate Templates
        id: validate
        run: |
          cd pr
          git fetch origin main
          CHANGED=$(git diff --name-only origin/main...HEAD -- 'vup/srcpkgs/*/*/template')

          if [ -z "$CHANGED" ]; then
            echo "No template changes detected."
            echo "passed=true" >> "$GITHUB_OUTPUT"
            echo "No template changes detected." > /tmp/validation-output.txt
            exit 0
          fi

          echo "Validating changed templates:"
          echo "$CHANGED"

          # Capture both stdout and exit code
          OUTPUT=$(python3 ../base/vup/scripts/validate_template.py $CHANGED 2>&1) && RC=$? || RC=$?
          echo "$OUTPUT"

          if [ $RC -ne 0 ]; then
            echo "passed=false" >> "$GITHUB_OUTPUT"
            # Save output for the job summary
            echo "$OUTPUT" > /tmp/validation-errors.txt
            exit 0  # Don't fail the step, we want to report the errors cleanly
          else
            echo "passed=true" >> "$GITHUB_OUTPUT"
            echo "$OUTPUT" > /tmp/validation-output.txt
          fi

      - name: Report Failure
        if: steps.validate.outputs.passed == 'false'
        uses: actions/github-script@v9
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          script: |
            const fs = require('fs');
            const errors = fs.readFileSync('/tmp/validation-errors.txt', 'utf8');
            const prNumber = context.payload.pull_request.number;

            const body = [
              '### :x: Template Validation Failed',
              '',
              'Your template has issues that must be fixed before this PR can be built:',
              '',
              '```',
              errors.trim(),
              '```',
              '',
              'Fix the errors above, push your changes, and the check will re-run automatically.',
            ].join('\n');

            const reportDir = 'pr-check-report';
            fs.mkdirSync(reportDir, { recursive: true });
            fs.writeFileSync(`${reportDir}/pr_number.txt`, `${prNumber}\n`);
            fs.writeFileSync(`${reportDir}/status.txt`, 'failure\n');
            fs.writeFileSync(`${reportDir}/details.txt`, `${errors.trim()}\n`);

            await core.summary
              .addRaw(body)
              .write();

            core.setFailed('Template validation failed.');

      - name: Report Success
        if: steps.validate.outputs.passed == 'true'
        uses: actions/github-script@v9
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          script: |
            const fs = require('fs');
            const output = fs.readFileSync('/tmp/validation-output.txt', 'utf8');
            const prNumber = context.payload.pull_request.number;

            const hasWarnings = output.includes('WARNING:');

            const body = hasWarnings
              ? [
                  '### :warning: Template Validation Passed (with warnings)',
                  '',
                  '```',
                  output.trim(),
                  '```',
                ].join('\n')
              : [
                  '### :white_check_mark: Template Validation Passed',
                  '',
                  'All required fields are present.',
                ].join('\n');

            const reportDir = 'pr-check-report';
            fs.mkdirSync(reportDir, { recursive: true });
            fs.writeFileSync(`${reportDir}/pr_number.txt`, `${prNumber}\n`);
            fs.writeFileSync(`${reportDir}/status.txt`, hasWarnings ? 'warning\n' : 'success\n');
            fs.writeFileSync(`${reportDir}/details.txt`, `${output.trim()}\n`);

            await core.summary
              .addRaw(body)
              .write();

      - name: Upload PR Check Report
        if: always()
        uses: actions/upload-artifact@v7
        with:
          name: pr-check-report
          path: pr-check-report/*
          if-no-files-found: ignore