Composer API
Namespace

Composer\Downloader

DownloadManager Downloaders manager.
FileDownloader Base downloader for file packages
GitDownloader
HgDownloader
PearDownloader Downloader for pear packages
PharDownloader Downloader for phar files
SvnDownloader
TarDownloader Downloader for tar files: tar, tar.gz or tar.bz2
VcsDownloader
ZipDownloader

Interfaces

DownloaderInterface Downloader interface.