pre-commit

#!/usr/bin/php
<?php
// Set constants.
$js_pattern  = "/\.js$/";

// Set default variables.
$return      = 0;
$exit_status = 0;
$output      = array();
$matches     = array("js" => array());

// Get aganist git version.
exec("git rev-parse --verify HEAD 2> /dev/null", $output, $return);
$against = ($return == 0) ? "HEAD" : "4b825dc642cb6eb9a060e54bf8d69288fbee4904";

// Get diff index.
$cmd = "git diff-index --cached --name-status $against";
exec($cmd, $output, $return);

// Get branch name
$branch = trim(`git rev-parse --abbrev-ref HEAD`);

// Check Code Standard Error
foreach ($output as $item)
{
    $item = explode("\t", $item);

    // Don't deal with commit id.
    if (count($item) !== 2)
    {
        continue;
    }

    // Don't deal with deleted files.
    $file   = $item[1];
    $status = $item[0];
    if ($status === "D")
    {
        continue;
    }

    // Match JavaScript files.
    if (preg_match($js_pattern, $file))
    {
        $matches["js"][] = escapeshellarg($file);
    }
}

$message = array("jslint" => array());
$return  = 0;

// Check JavaScript files.
if (count($matches["js"]))
{
    foreach ($matches["js"] as $file)
    {
        // Correct file path.
        if (mb_substr($file, 0, 1) !== "/")
        {
            $file = getcwd() . "/" . $file;
        }
        $cmd = "jslint --continue --nomen --regexp --sloppy $file";
        exec($cmd, $output, $return);
        if ($return == 0)
        {
            continue;
        }
        array_shift($output);
        array_shift($output);
        array_shift($output);
        $message["jslint"][] = implode($output, "\n");
        $exit_status = 1;
    }
}

if ($exit_status == 1)
{
    echo "\nCOMMIT FAILED!\n";
    if (count($message["jslint"]))
    {
        echo "============================================================\n";
        echo "JSLint Error report \n";
        echo "============================================================";
        echo implode($message["jslint"]) . "\n";
        echo "============================================================\n\n";
        exit(1);
    }
}

exit($exit_status);
?>