Script to convert a Serbian Cyrillic repo to Latin script

gistfile1.php

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

// Transliteration to Serbian requires ICU library >= 5.0

if (php_sapi_name() != 'cli') {
    die('Nope');
}

$targetFolder = (isset($argv[1])) ? $argv[1] : 'sr-Latn'; // target folder

/*
 * Recursively find all files, ignore common VCS dot files
 */
function findFiles($dir)
{
    $result = [];
    $root   = scandir($dir);
    $ignore = ['.', '..', '.git', '.svn', '.hg', '.hgtags', '.gitignore'];

    foreach ($root as $value) {

        if (in_array($value, $ignore)) {
            continue;
        }

        if (is_file("$dir/$value")) {
            $split = explode('.', $value);
            $result[] = "$dir/$value";
            continue;
        }

        foreach (findFiles("$dir/$value") as $value) {
            $result[] = $value;
        }
    }

    return $result;
}

/*
 * Write to a file and creates the sub-folders if needed
 */

function writeFile($dir, $contents)
{
    $parts = explode('/', $dir);
    $file = array_pop($parts);
    $dir = '';

    foreach ($parts as $part) {
        if (!is_dir($dir .= "/$part")) {
            mkdir($dir);
        }
    }

    file_put_contents("$dir/$file", $contents);
}

$sourceFolder = 'sr-Cyrl';
$sourcePath   = __DIR__ . '/';
$files        = findFiles($sourcePath . $sourceFolder);
$translit     = Transliterator::create('Serbian-Latin/BGN');

foreach ($files as $file) {
    $sourceFile = file_get_contents($file);
    $targetPath = str_replace($sourcePath . $sourceFolder, __DIR__ . '/' . $targetFolder, $file);
    writeFile($targetPath, $translit->transliterate($sourceFile));
}