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<?php |
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declare(strict_types = 1); |
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namespace Innmind\Server\Status\Server\Disk; |
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use Innmind\Server\Status\{ |
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Server\Disk, |
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Server\Disk\Volume\MountPoint, |
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Server\Disk\Volume\Usage, |
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Server\Memory\Bytes, |
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Exception\DiskUsageNotAccessible, |
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}; |
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use Innmind\Immutable\{ |
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Str, |
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Sequence, |
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Map, |
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}; |
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use Symfony\Component\Process\Process; |
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final class UnixDisk implements Disk |
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{ |
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private static array $columns = [ |
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'Size' => 'size', |
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'Used' => 'used', |
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'Avail' => 'available', |
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'Use%' => 'usage', |
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'Capacity' => 'usage', |
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'Mounted' => 'mountPoint', |
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]; |
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/** |
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* {@inheritdoc} |
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*/ |
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public function volumes(): Map |
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{ |
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return $this->parse( |
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$this->run('df -lh'), |
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); |
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} |
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public function get(MountPoint $point): Volume |
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{ |
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return $this |
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->volumes() |
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->get($point->toString()); |
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} |
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private function run(string $command): Str |
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{ |
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$process = Process::fromShellCommandline($command); |
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$process->run(); |
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if (!$process->isSuccessful()) { |
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throw new DiskUsageNotAccessible; |
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} |
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return Str::of($process->getOutput()); |
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} |
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/** |
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* @return Map<string, Volume> |
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*/ |
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private function parse(Str $output): Map |
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{ |
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$lines = $output |
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->trim() |
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->split("\n"); |
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$columns = $lines |
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->first() |
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->pregSplit('~ +~') |
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->reduce( |
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Sequence::strings(), |
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static function(Sequence $columns, Str $column): Sequence { |
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$column = $column->toString(); |
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return ($columns)(self::$columns[$column] ?? $column); |
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}, |
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); |
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/** @var Sequence<Sequence<Str>> */ |
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$partsByLine = $lines |
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->drop(1) |
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->reduce( |
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Sequence::of(Sequence::class), |
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static function(Sequence $lines, Str $line) use ($columns): Sequence { |
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return ($lines)( |
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$line->pregSplit('~ +~', $columns->size()), |
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); |
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}, |
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); |
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$volumes = $partsByLine->mapTo( |
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Volume::class, |
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function(Sequence $parts) use ($columns): Volume { |
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return new Volume( |
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new MountPoint( |
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$parts->get($columns->indexOf('mountPoint'))->toString(), |
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), |
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Bytes::of( |
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$parts->get($columns->indexOf('size'))->toString(), |
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), |
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Bytes::of( |
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$parts->get($columns->indexOf('available'))->toString(), |
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), |
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Bytes::of( |
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$parts->get($columns->indexOf('used'))->toString(), |
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), |
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new Usage( |
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(float) $parts->get($columns->indexOf('usage'))->toString(), |
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), |
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); |
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}, |
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); |
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/** @var Map<string, Volume> */ |
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return $volumes->reduce( |
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Map::of('string', Volume::class), |
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static function(Map $volumes, Volume $volume): Map { |
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return ($volumes)( |
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$volume->mountPoint()->toString(), |
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$volume, |
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); |
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}, |
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); |
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} |
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} |
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