Vardoc generator for Magento collection classes

collections.php

<?php
/* This script generates @method annotations for magento collection classes.
 * Example:
 *   cd [magento root]
 *   php shell/collections.php
 *
 */
// Init framework
require __DIR__.'/../app/Mage.php';
Mage::app();
// Factory methods to search for
$methods = array(
  'Mage::getModel',
);
// Path to search for source files
$projectPath = 'app';
$sourceRegex = '/^.+\.(?:php|phtml)$/';
// Collect class names
$iterator = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($projectPath, FilesystemIterator::FOLLOW_SYMLINKS));
$files = new RegexIterator($iterator, $sourceRegex, RecursiveRegexIterator::GET_MATCH);
$classes = $collections = [];
foreach($files as $file) {
    $code = file_get_contents($file[0]);
    if ($code === FALSE) die("Could not get contents of {$file[0]}\n");
    foreach($methods as $method) {
        if(preg_match_all('#'.preg_quote($method).'\s*\(\s*[\'"]([a-zA-Z0-9/_]+)[\'"]#', $code, $matches)) {
            if(empty($classes[$method])) $classes[$method] = array();
            foreach($matches[1] as $token) {
                if(isset($classes[$method][$token])) continue;
                $className = Mage::getConfig()->getModelClassName($token);
                if ($className && preg_match('/^Mage_/', $className) && ! preg_match('/_(Paypal|Api|Api2|Service|Config|Calculator|Exception|Import|Export|Uploader|Install|XmlConnect|Acl)/', $className)) {
                    $object = Mage::getModel($token);
                    if ($object && $object instanceof Mage_Core_Model_Abstract &&  method_exists($object, 'getCollection')) {
                        try {
                            $collection = $object->getCollection();
                            if ($collection) {
                                $collectionClass = get_class($collection);
                                $collections[$collectionClass] = $className;
                            } else {
                                $collections[$collectionClass] = 'FAILED (getCollection)';
                            }
                        } catch (Exception $e) {
                            $collections[$collectionClass] = 'FAILED (exception)';
                        }
                    } else {
                        $collections[$collectionClass] = 'SKIPPED (instanceof)';
                    }
                    $classes[$method][$token] = $className;
                } else {
                     $collections[$collectionClass] = 'SKIPPED (pattern)';
                }
            }
        }
    }
}
foreach ($collections as $collectionClass => $className) {
    if (preg_match('/^(SKIPPED|FAILED)/', $className)) {
        echo "$className  $collectionClass\n";
    }
    $classFile = str_replace(' ', DIRECTORY_SEPARATOR, ucwords(str_replace('_', ' ', $collectionClass))).'.php';
    $classFilePath = stream_resolve_include_path($classFile);
    if ($classFilePath) {
        $contents = file("$classFilePath");
        foreach ($contents as $index => $line) {
            if ($line == " * @category    Mage\n") {
                $insertAfter = $index - 1;
            }
        }
        if ($insertAfter) {
            $newLines = [
                " *\n",
                " * @method {$className}[] getIterator()\n",
                " * @method {$className} getFirstItem()\n",
                " * @method {$className}[] getItems()\n",
                " * @method {$className} getItemById(\$value)\n",
                " * @method {$className}[] getItemsByColumnValue(\$column, \$value)\n",
                " * @method {$className} getItemByColumnValue(\$column, \$value)\n",
            ];
            array_splice($contents, $insertAfter, 0, $newLines);
            file_put_contents("$classFilePath", implode("", $contents));
            echo "$className::$classFilePath\n";
        } else {
            echo "No insertion point found for $className::$classFilePath";
        }
        #exit; // Testing
    } else {
        echo "Could not resolve file for $className::$collectionClass\n";
    }
}