docs-inject-php-code

#!/usr/bin/env php
<?php

use League\CommonMark\Environment\Environment;
use League\CommonMark\Extension\CommonMark\Node\Block\FencedCode;
use League\CommonMark\Node\Query;
use League\CommonMark\Parser\MarkdownParser;
use Wnx\CommonmarkMarkdownRenderer\MarkdownRendererExtension;
use Wnx\CommonmarkMarkdownRenderer\Renderer\MarkdownRenderer;

require __DIR__ . '/../vendor/autoload.php';



$environment = new Environment([]);
$environment->addExtension(new MarkdownRendererExtension());

$parser = new MarkdownParser($environment);
$markdownRenderer = new MarkdownRenderer($environment);

$targetDir = __DIR__ . '/../docs_php';

if (!file_exists($targetDir)) {
    exit(1);
}

$finder = new Symfony\Component\Finder\Finder();
$finder->files()->in(__DIR__ . '/../docs/pages')->name('*.md');

foreach ($finder as $file) {
    $fileName = pathinfo($file->getBasename(), PATHINFO_FILENAME);

    $content = file_get_contents($file->getPathname());
    $document = $parser->parse($content);

    $result = (new Query())
        ->where(Query::type(FencedCode::class))
        ->findAll($document);

    /**
     * @var FencedCode $node
     */
    foreach ($result as $i => $node) {
        if ($node->getInfo() !== 'php') {
            $node->setLiteral(trim($node->getLiteral()));
            continue;
        }

        $targetPath = $targetDir . '/' . $fileName . '_' . $i . '.php';

        if (!file_exists($targetPath)) {
            $node->setLiteral(trim($node->getLiteral()));
            continue;
        }

        $code = file_get_contents($targetPath);

        $lines = explode("\n", $code);
        array_splice($lines, 0, 2);
        $code = implode("\n", $lines);

        $node->setLiteral(trim($code));
    }

    file_put_contents($file->getPathname(), $markdownRenderer->renderDocument($document));
}

if (file_exists($targetDir)) {
    exec('rm -rf ' . $targetDir);
}