Beispiel #1
0
func getVersionDir(version dockerversion.Version) string {
	versionPath := version.SemVer.String()
	if version.IsExperimental() {
		versionPath = dockerversion.ExperimentalAlias
	}
	return filepath.Join(getVersionsDir(), versionPath)
}
Beispiel #2
0
func use(version dockerversion.Version) {
	writeDebug("dvm use %s", version)

	if version.IsEmpty() {
		die("The use command requires that a version is specified or the DOCKER_VERSION environment variable is set.", nil, retCodeInvalidOperation)
	}

	if version.HasAlias() && aliasExists(version.Alias) {
		aliasedVersion, _ := ioutil.ReadFile(getAliasPath(version.Alias))
		version.SemVer = semver.MustParse(string(aliasedVersion))
		writeDebug("Using alias: %s -> %s", version.Alias, version.SemVer)
	}

	ensureVersionIsInstalled(version)

	if version.IsSystem() {
		version, _ = getSystemDockerVersion()
	} else if version.IsExperimental() {
		version, _ = getExperimentalDockerVersion()
	}

	removePreviousDockerVersionFromPath()
	if !version.IsSystem() {
		prependDockerVersionToPath(version)
	}

	writePathScript()
	writeInfo("Now using Docker %s", version)
}
Beispiel #3
0
func versionExists(version dockerversion.Version) bool {
	if version.IsExperimental() {
		return true
	}

	availableVersions := getAvailableVersions(version.SemVer.String())

	for _, availableVersion := range availableVersions {
		if version.Equals(availableVersion) {
			return true
		}
	}
	return false
}
Beispiel #4
0
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)
}
Beispiel #5
0
func install(version dockerversion.Version) {
	writeDebug("dvm install %s", version)

	if version.IsEmpty() {
		die("The install command requires that a version is specified or the DOCKER_VERSION environment variable is set.", nil, retCodeInvalidArgument)
	}

	if nocheck {
		writeDebug("Skipping version validation!")
	}

	if !nocheck && !versionExists(version) {
		die("Version %s not found - try `dvm ls-remote` to browse available versions.", nil, retCodeInvalidOperation, version)
	}

	versionDir := getVersionDir(version)

	if version.IsExperimental() && pathExists(versionDir) {
		// Always install latest of experimental build
		err := os.RemoveAll(versionDir)
		if err != nil {
			die("Unable to remove experimental version at %s.", err, retCodeRuntimeError, versionDir)
		}
	}

	if _, err := os.Stat(versionDir); err == nil {
		writeWarning("%s is already installed", version)
		use(version)
		return
	}

	writeInfo("Installing %s...", version)

	downloadRelease(version)
	use(version)
}