func downloadRelease(version dockerversion.Version) {
url := buildDownloadURL(version)
binaryName := getBinaryName()
binaryPath := filepath.Join(getVersionDir(version), binaryName)
if version.ShouldUseArchivedRelease() {
archivedFile := path.Join("docker", binaryName)
downloadArchivedFileWithChecksum(url, archivedFile, binaryPath)
} else {
downloadFileWithChecksum(url, binaryPath)
}
writeDebug("Downloaded Docker %s to %s.", version, binaryPath)
}
func buildDownloadURL(version dockerversion.Version) string {
dockerVersion := version.SemVer.String()
if version.IsExperimental() {
dockerVersion = "latest"
}
if mirrorURL == "" {
mirrorURL = "https://get.docker.com/builds"
if version.IsExperimental() {
writeDebug("Downloading from experimental builds mirror")
mirrorURL = "https://experimental.docker.com/builds"
}
}
// New Docker versions are released in a zip file, vs. the old way of releasing the client binary only
if version.ShouldUseArchivedRelease() {
return fmt.Sprintf("%s/%s/%s/docker-%s%s", mirrorURL, dockerOS, dockerArch, dockerVersion, archiveFileExt)
}
return fmt.Sprintf("%s/%s/%s/docker-%s%s", mirrorURL, dockerOS, dockerArch, dockerVersion, binaryFileExt)
}