<?php

namespace Edge\QA;

function pathToBinary($tool)

{

return escapePath(COMPOSER_BINARY_DIR . $tool);

}

function escapePath($path)

{

return "\"{$path}\"";

}

function commonPath(array $dirs)

{

if (!$dirs) {

return;

}

$dirsCount = array();

foreach ($dirs as $i => $path) {

$dirs[$i] = explode('/', $path);

unset($dirs[$i][0]);

$dirsCount[$i] = count($dirs[$i]);

}

$minDirsCount = min($dirsCount);

for ($i = 0; $i < count($dirs); $i++) {

$dirs[$i] = '/' . implode('/', array_slice($dirs[$i], 0, $minDirsCount));

}

$commonDirs = array_unique($dirs);

while (count($commonDirs) !== 1) {

$commonDirs = array_unique(array_map('dirname', $commonDirs));

}

return reset($commonDirs);

}