PHPStan output tweaker - version, colors, better dividers

phpstan-tweak.php

<?php

// Ensure output is treated as a TTY/ANSI capable stream
// Usage: phpstan analyze --ansi | php phpstan-tweak.php

$width = static function (): int
{
    static $col;
    if ($col !== null) {
        return $col;
    }

    $col = (int) @exec('tput cols');
    if ($col !== 0) {
        return $col;
    }

    if (PHP_OS_FAMILY === 'Windows') {
        exec('mode CON', $output);
        [, $col] = explode(':', $output[4]);
        $col = (int) trim($col);
    }

    return $col = $col ?: 120;
};

// PHPStan version
$version = null;
$lockFile = __DIR__ . '/../composer.lock';
if (file_exists($lockFile)) {
    $data = json_decode(file_get_contents($lockFile), true, 512, JSON_THROW_ON_ERROR);

    $packages = array_merge($data['packages'] ?? [], $data['packages-dev'] ?? []);

    foreach ($packages as $package) {
        if ($package['name'] === 'phpstan/phpstan') {
            $version = $package['version'];
            break;
        }
    }
}

echo "  \e[32mPHPStan {$version}\e[39m on PHP " . PHP_VERSION . "\n\n";

while ($line = fgets(STDIN)) {
    // drop less useful tips
    if (str_contains($line, 'user-guide/discovering-symbols')) {
        continue;
    }
    // remove original separators
    if (preg_match('~^ ------ -+\s+$~', $line)) {
        continue;
    }
    // add better
    if (preg_match("~\e\[32mLine\e\[39m~", $line)) {
        $line .= " ------ " . str_repeat('-', $width() - 9) . "\n";
    }

    // highlight rule identifiers (e.g., ? class.notFound)
    $line = preg_replace('/?\s*([a-zA-Z0-9._-]+)/u', "\e[30m$0\e[0m", $line);

    // highlight variables
    $line = preg_replace('/(\\$\w+)/u', "\e[33m$0\e[0m", $line);

    // highlight types
    $types = 'bool|true|false|null|scalar|empty-scalar|non-empty-scalar'
        . '|(?:non-)?(?:negative-|positive-|zero-)?int(?:<(?:\d+|min|max)>)?|float|number|numeric'
        . '|(?:non-empty-|non-falsy-|numeric-|class-|callable-|)string|array-key'
        . '|(?:non-empty-)?(?:array|list|iterable|key-of|value-of)(?:<[^>]>|\\[\\]|{[^}]})?' // todo: nested <>, collections
        . '|object|resource|callable|mixed|never|void|self|static|parent';
    $codePattern = '/(::[a-zA-Z0-9_]+)|([a-zA-Z0-9_]+\(\))|([a-zA-Z0-9_\\\|]*[\\\|][a-zA-Z0-9_\\\|]+)|(\b(' . $types . ')\b)/';
    $line = preg_replace_callback($codePattern, static function ($m): string {
        $str = $m[0];
        $str = preg_replace('~[|&<>[\\]]~', "\e[95m$0\e[34m", $str);
        return "\e[34m{$str}\e[0m";
    }, $line);

    echo $line;
}

in ide with light background: