Innmind\Server\Status\Facade\Memory\LinuxFacade::__invoke()

Complexity

Conditions	2
Paths	2

Size

Total Lines	39
Code Lines	26

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	26
CRAP Score	2.0002

Importance

Changes	2
Bugs	0	Features	1

<?php
    public function __invoke(): Memory
    {
        $process = new Process('cat /proc/meminfo');

'cat /proc/meminfo' of type string is incompatible with the type array expected by parameter $command of Symfony\Component\Process\Process::__construct().

        $process->run();

        if (!$process->isSuccessful()) {
            throw new MemoryUsageNotAccessible;
        }

        $amounts = (new Str($process->getOutput()))
            ->trim()
            ->split("\n")
            ->filter(static function(Str $line): bool {
                return $line->matches(
                    '~^('.implode('|', array_keys(self::$entries)).'):~'
                );
            })
            ->reduce(
                new Map('string', 'int'),
                static function(Map $map, Str $line): Map {
                    $elements = $line->capture('~^(?P<key>[a-zA-Z]+): +(?P<value>\d+) kB$~');

                    return $map->put(
                        self::$entries[(string) $elements->get('key')],
                        ((int) (string) $elements->get('value')) * Bytes::BYTES
                    );
                }
            );

        $used = $amounts->get('total') - $amounts->get('free');
        $wired = $used - $amounts->get('active') - $amounts->get('inactive');

        return new Memory(
            new Bytes($amounts->get('total')),
            new Bytes($wired),
            new Bytes($amounts->get('active')),
            new Bytes($amounts->get('free')),
            new Bytes($amounts->get('swap')),
            new Bytes($used)
        );