function Cache::isUsable

Return value

bool

6 calls to Cache::isUsable()
Cache::__construct in vendor/composer/composer/src/Composer/Cache.php
FossilDriver::initialize in vendor/composer/composer/src/Composer/Repository/Vcs/FossilDriver.php
@inheritDoc
GitDownloader::doDownload in vendor/composer/composer/src/Composer/Downloader/GitDownloader.php
@inheritDoc
GitDriver::initialize in vendor/composer/composer/src/Composer/Repository/Vcs/GitDriver.php
@inheritDoc
HgDriver::initialize in vendor/composer/composer/src/Composer/Repository/Vcs/HgDriver.php
@inheritDoc

... See full list

File

vendor/composer/composer/src/Composer/Cache.php, line 82

Class

Cache
Reads/writes to a filesystem cache

Namespace

Composer

Code

public static function isUsable(string $path) {
    return !Preg::isMatch('{(^|[\\\\/])(\\$null|nul|NUL|/dev/null)([\\\\/]|$)}', $path);
}