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#!/usr/bin/env php
<?php
$options = getopt("i:e:h", ['include:', 'exclude:', 'help']);

if (isset($options['include'])) {
    $options['i'] = $options['include'];
}

if (isset($options['exclude'])) {
    $options['e'] = $options['exclude'];
}

if (isset($options['h']) || isset($options['help'])) {
    echo "Cleaning composer vendor directory" . PHP_EOL . PHP_EOL;

    echo "\e[0;33mUsage:\e[0m" . PHP_EOL;
    echo "  command [options] [arguments]" . PHP_EOL . PHP_EOL;

    echo "\e[0;33mOptions:\e[0m" . PHP_EOL;
    echo "  \e[0;32m-h, --help    \e[0m  Display this help message" . PHP_EOL;
    echo "  \e[0;32m-i, --include \e[0m  Add patterns for common files, comma separated" . PHP_EOL;
    echo "  \e[0;32m-e, --exclude \e[0m  Remove patterns for common files, comma separated" . PHP_EOL . PHP_EOL;

    echo "\e[0;33mExample:\e[0m" . PHP_EOL;
    echo "  ./vendor/bin/cleanup --include *.zip,*.rar --exclude doc,docs,test" . PHP_EOL;
    return;
}

// Default patterns for common files
$patterns = [
    '.git',
    '.github',
    'test',
    'tests',
    'travis',
    'demo',
    'example',
    'examples',
    'doc',
    'docs',
    'license',
    'changelog*',
    'changes*',
    'faq*',
    'contributing*',
    'history*',
    'upgrading*',
    'upgrade*',
    'package*',
    'readme*',
    '{,.}*.yml',
    '*.md',
    '*.xml',
    '*.txt',
    '*.dist',
    '.php_cs*',
    '.scrutinizer',
    '.gitignore',
    '.gitattributes',
    '.editorconfig',
    'dockerfile',
    'composer.lock',
];

if (isset($options['i'])) {
    $patterns = array_merge($patterns, explode(',', $options['i']));
}

if (isset($options['e'])) {
    $patterns = array_diff($patterns, explode(',', $options['e']));
}
/**
 * Recursively traverses the directory tree
 *
 * @param  string $dir
 * @return array
 */
function expandTree($dir)
{
    $directories = [];
    $files = array_diff(scandir($dir), ['.', '..']);
    foreach($files as $file) {
        $directory = $dir . '/' . $file;
        if(is_dir($directory)) {
            $directories[] = $directory;
            $directories = array_merge($directories, expandTree($directory));
        }
    }

    return $directories;
}

/**
 * Recursively deletes the directory
 *
 * @param  string $dir
 * @return bool
 */
function delTree($dir)
{
    $files = array_diff(scandir($dir), ['.', '..']);
    foreach ($files as $file) {
        (is_dir($dir . '/' . $file)) ? delTree($dir . '/' . $file) : unlink($dir . '/' . $file);
    }

    return rmdir($dir);
}

/**
 * Prepare word
 *
 * @param  string $matches
 * @return string
 */
function prepareWord($matches)
{
    return '[' . strtolower($matches[1]) . strtoupper($matches[1]) . ']';
}

$directories = expandTree(dirname(__DIR__, 2));

foreach ($directories as $directory) {
    foreach ($patterns as $pattern) {

        $casePattern = preg_replace_callback('/([a-z])/i', 'prepareWord', $pattern);

        foreach (glob($directory . '/' . $casePattern, GLOB_BRACE) as $file) {

            echo 'delete: ' . $file . PHP_EOL;

            if (is_dir($file)) {
                delTree($file);
            } else {
                unlink($file);
            }
        }
    }
}

echo 'success' . PHP_EOL;