function ProjectInstaller::download

@inheritDoc

Overrides InstallerInterface::download

File

vendor/composer/composer/src/Composer/Installer/ProjectInstaller.php, line 62

Class

ProjectInstaller

Project Installer is used to install a single package into a directory as root project.

Namespace

Composer\Installer

Code

public function download(PackageInterface $package, ?PackageInterface $prevPackage = null) : ?PromiseInterface {
    $installPath = $this->installPath;
    if (file_exists($installPath) && !$this->filesystem
        ->isDirEmpty($installPath)) {
        throw new \InvalidArgumentException("Project directory {$installPath} is not empty.");
    }
    if (!is_dir($installPath)) {
        mkdir($installPath, 0777, true);
    }
    return $this->downloadManager
        ->download($package, $installPath, $prevPackage);
}