New creates a new downloader for the given URL.

NewLimitedReader wraps a reader to read up to n bytes before stopping with ErrSizeLimitExceeded.

SHA256 returns the hash of the file if possible, empty string otherwise.

BadHTTPCodeError returned when the server responds with unexpected HTTP code.

Downloader fetches a file from a URL to a destination path, with various options.

NotFoundError returned by Download() when the remote resource is not found.