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@lapistano
Forked from ezzatron/clean-use.php
Created December 9, 2011 11:11
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Script to clean unnecessary PHP use statements
#!/usr/bin/env php
<?php
$paths = array();
if (isset($_SERVER['argv']))
{
$paths = $_SERVER['argv'];
array_shift($paths);
if (!$paths)
{
$paths[] = '.';
}
}
foreach ($paths as $path)
{
if (!$realpath = realpath($path)) throw new Exception("Unable to resolve path '".$path."'.");
cleanUse($realpath);
}
function cleanUse($path)
{
if (is_dir($path))
{
foreach (glob($path.DIRECTORY_SEPARATOR.'*') as $subPath)
{
cleanUse($subPath);
}
return;
}
echo "Cleaning '".$path."'".PHP_EOL;
$content = file_get_contents($path);
if ('<?php' != substr($content, 0, 5)) return;
if (!preg_match_all('/^use (?<name>.*?)(?:as (?<alias>.*))?;$/m', $content, $matches, PREG_OFFSET_CAPTURE)) return;
$useNames = array();
foreach ($matches['name'] as $matchNumber => $match)
{
$name = explode('\\', $match[0]);
$useNames[$matchNumber] = array_pop($name);
}
foreach ($matches['alias'] as $matchNumber => $match)
{
if (!$match || !$match[0]) continue;
$useNames[$matchNumber] = $match[0];
}
$lastMatch = $matches[0][count($matches[0]) - 1];
$offset = $lastMatch[1] + strlen($lastMatch[0]);
$unusedNames = array();
foreach ($useNames as $useName)
{
if (preg_match('/\b'.preg_quote($useName, '/').'\b/', $content, $matches, null, $offset)) continue;
$unusedNames[] = $useName;
}
if (!$unusedNames) return;
echo "Found unused 'use'(s) in '".$path."':".PHP_EOL;
foreach ($unusedNames as $unusedName)
{
echo " - '".$unusedName."'".PHP_EOL;
}
echo 'Removing...';
foreach ($unusedNames as $unusedName)
{
$content = preg_replace('/^use .*'.preg_quote($unusedName, '/').';$\s/m', '', $content);
}
file_put_contents($path, $content);
echo 'done.'.PHP_EOL;
}
@edorian
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edorian commented Feb 3, 2012

You don't happen to have that as a phpcs/phpmd rule do you? :)

@lapistano
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lapistano commented Feb 3, 2012 via email

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