Golang homedir.HomeDir函数代码示例

func getFabric8BinLocation() string {
	home := homedir.HomeDir()
	if home == "" {
		util.Fatalf("No user home environment variable found for OS %s", runtime.GOOS)
	}
	return filepath.Join(home, ".fabric8", "bin")
}

// currentMigrationRules returns a map that holds the history of recommended home directories used in previous versions.
// Any future changes to RecommendedHomeFile and related are expected to add a migration rule here, in order to make
// sure existing config files are migrated to their new locations properly.
func currentMigrationRules() map[string]string {
	oldRecommendedHomeFile := path.Join(homedir.HomeDir(), ".kube/.config")
	oldRecommendedWindowsHomeFile := path.Join(os.Getenv("HOME"), OpenShiftConfigHomeDirFileName)

	migrationRules := map[string]string{}
	migrationRules[RecommendedHomeFile] = oldRecommendedHomeFile
	if runtime.GOOS == "windows" {
		migrationRules[RecommendedHomeFile] = oldRecommendedWindowsHomeFile
	}
	return migrationRules
}

func isInstalled(isMinishift bool) bool {
	home := homedir.HomeDir()
	if home == "" {
		util.Fatalf("No user home environment variable found for OS %s", runtime.GOOS)
	}

	// check if we can find a local kube config file
	if _, err := os.Stat(home + "/.kube/config"); os.IsNotExist(err) {
		return false
	}

	// check for kubectl
	_, err := exec.LookPath(kubectl)
	if err != nil {
		return false
	}

	if isMinishift {
		// check for minishift
		_, err = exec.LookPath(minishift)
		if err != nil {
			return false
		}
		// check for oc client
		_, err = exec.LookPath(oc)
		if err != nil {
			return false
		}

	} else {
		// check for minikube
		_, err = exec.LookPath(minikube)
		if err != nil {
			return false
		}
	}

	return true
}

	clientcmdapi "k8s.io/kubernetes/pkg/client/unversioned/clientcmd/api"
	clientcmdlatest "k8s.io/kubernetes/pkg/client/unversioned/clientcmd/api/latest"
	"k8s.io/kubernetes/pkg/runtime"
	utilerrors "k8s.io/kubernetes/pkg/util/errors"
	"k8s.io/kubernetes/pkg/util/homedir"
)

const (
	RecommendedConfigPathFlag   = "kubeconfig"
	RecommendedConfigPathEnvVar = "KUBECONFIG"
	RecommendedHomeDir          = ".kube"
	RecommendedFileName         = "config"
	RecommendedSchemaName       = "schema"
)

var RecommendedHomeFile = path.Join(homedir.HomeDir(), RecommendedHomeDir, RecommendedFileName)
var RecommendedSchemaFile = path.Join(homedir.HomeDir(), RecommendedHomeDir, RecommendedSchemaName)

// currentMigrationRules returns a map that holds the history of recommended home directories used in previous versions.
// Any future changes to RecommendedHomeFile and related are expected to add a migration rule here, in order to make
// sure existing config files are migrated to their new locations properly.
func currentMigrationRules() map[string]string {
	oldRecommendedHomeFile := path.Join(os.Getenv("HOME"), "/.kube/.kubeconfig")
	oldRecommendedWindowsHomeFile := path.Join(os.Getenv("HOME"), RecommendedHomeDir, RecommendedFileName)

	migrationRules := map[string]string{}
	migrationRules[RecommendedHomeFile] = oldRecommendedHomeFile
	if goruntime.GOOS == "windows" {
		migrationRules[RecommendedHomeFile] = oldRecommendedWindowsHomeFile
	}
	return migrationRules

// NewFactory creates an object that holds common methods across all OpenShift commands
func NewFactory(clientConfig kclientcmd.ClientConfig) *Factory {
	restMapper := registered.RESTMapper()

	clients := &clientCache{
		clients: make(map[string]*client.Client),
		configs: make(map[string]*restclient.Config),
		loader:  clientConfig,
	}

	w := &Factory{
		Factory:                cmdutil.NewFactory(clientConfig),
		OpenShiftClientConfig:  clientConfig,
		clients:                clients,
		ImageResolutionOptions: &imageResolutionOptions{},
	}

	w.Object = func(bool) (meta.RESTMapper, runtime.ObjectTyper) {
		defaultMapper := ShortcutExpander{RESTMapper: kubectl.ShortcutExpander{RESTMapper: restMapper}}
		defaultTyper := api.Scheme

		// Output using whatever version was negotiated in the client cache. The
		// version we decode with may not be the same as what the server requires.
		cfg, err := clients.ClientConfigForVersion(nil)
		if err != nil {
			return defaultMapper, defaultTyper
		}

		cmdApiVersion := unversioned.GroupVersion{}
		if cfg.GroupVersion != nil {
			cmdApiVersion = *cfg.GroupVersion
		}

		// at this point we've negotiated and can get the client
		oclient, err := clients.ClientForVersion(nil)
		if err != nil {
			return defaultMapper, defaultTyper
		}

		cacheDir := computeDiscoverCacheDir(filepath.Join(homedir.HomeDir(), ".kube"), cfg.Host)
		cachedDiscoverClient := NewCachedDiscoveryClient(client.NewDiscoveryClient(oclient.RESTClient), cacheDir, time.Duration(10*time.Minute))

		// if we can't find the server version or its too old to have Kind information in the discovery doc, skip the discovery RESTMapper
		// and use our hardcoded levels
		mapper := registered.RESTMapper()
		if serverVersion, err := cachedDiscoverClient.ServerVersion(); err == nil && useDiscoveryRESTMapper(serverVersion.GitVersion) {
			mapper = restmapper.NewDiscoveryRESTMapper(cachedDiscoverClient)
		}
		mapper = NewShortcutExpander(cachedDiscoverClient, kubectl.ShortcutExpander{RESTMapper: mapper})
		return kubectl.OutputVersionMapper{RESTMapper: mapper, OutputVersions: []unversioned.GroupVersion{cmdApiVersion}}, api.Scheme
	}

	w.UnstructuredObject = func() (meta.RESTMapper, runtime.ObjectTyper, error) {
		// load a discovery client from the default config
		cfg, err := clients.ClientConfigForVersion(nil)
		if err != nil {
			return nil, nil, err
		}
		dc, err := discovery.NewDiscoveryClientForConfig(cfg)
		if err != nil {
			return nil, nil, err
		}
		cacheDir := computeDiscoverCacheDir(filepath.Join(homedir.HomeDir(), ".kube"), cfg.Host)
		cachedDiscoverClient := NewCachedDiscoveryClient(client.NewDiscoveryClient(dc.RESTClient), cacheDir, time.Duration(10*time.Minute))

		// enumerate all group resources
		groupResources, err := discovery.GetAPIGroupResources(cachedDiscoverClient)
		if err != nil {
			return nil, nil, err
		}

		// Register unknown APIs as third party for now to make
		// validation happy. TODO perhaps make a dynamic schema
		// validator to avoid this.
		for _, group := range groupResources {
			for _, version := range group.Group.Versions {
				gv := unversioned.GroupVersion{Group: group.Group.Name, Version: version.Version}
				if !registered.IsRegisteredVersion(gv) {
					registered.AddThirdPartyAPIGroupVersions(gv)
				}
			}
		}

		// construct unstructured mapper and typer
		mapper := discovery.NewRESTMapper(groupResources, meta.InterfacesForUnstructured)
		typer := discovery.NewUnstructuredObjectTyper(groupResources)
		return NewShortcutExpander(cachedDiscoverClient, kubectl.ShortcutExpander{RESTMapper: mapper}), typer, nil
	}

	kClientForMapping := w.Factory.ClientForMapping
	w.ClientForMapping = func(mapping *meta.RESTMapping) (resource.RESTClient, error) {
		if latest.OriginKind(mapping.GroupVersionKind) {
			mappingVersion := mapping.GroupVersionKind.GroupVersion()
			client, err := clients.ClientForVersion(&mappingVersion)
			if err != nil {
				return nil, err
			}
			return client.RESTClient, nil
		}
		return kClientForMapping(mapping)
//.........这里部分代码省略.........

	DefaultDNSPort         = 53
	AlternateDNSPort       = 8053
	cmdDetermineNodeHost   = "for name in %s; do ls /var/lib/origin/openshift.local.config/node-$name &> /dev/null && echo $name && break; done"
)

var (
	openShiftContainerBinds = []string{
		"/var/log:/var/log:rw",
		"/var/run:/var/run:rw",
		"/sys:/sys:ro",
		"/var/lib/docker:/var/lib/docker",
	}
	BasePorts             = []int{80, 443, 4001, 7001, 8443, 10250}
	DefaultPorts          = append(BasePorts, DefaultDNSPort)
	PortsWithAlternateDNS = append(BasePorts, AlternateDNSPort)
	SocatPidFile          = filepath.Join(homedir.HomeDir(), cliconfig.OpenShiftConfigHomeDir, "socat-8443.pid")
)

// Helper contains methods and utilities to help with OpenShift startup
type Helper struct {
	hostHelper    *host.HostHelper
	dockerHelper  *dockerhelper.Helper
	execHelper    *dockerexec.ExecHelper
	runHelper     *run.RunHelper
	client        *docker.Client
	publicHost    string
	image         string
	containerName string
	routingSuffix string
}

	// ClientConfig returns a complete client config
	ClientConfig() (*restConfig, error)
}

// defaultClientConfig is a modified copy of openshift/origin/pkg/cmd/util/clientcmd.DefaultClientConfig.
func defaultClientConfig() clientConfig {
	loadingRules := newOpenShiftClientConfigLoadingRules()
	// REMOVED: Allowing command-line overriding of loadingRules
	// REMOVED: clientcmd.ConfigOverrides

	clientConfig := newNonInteractiveDeferredLoadingClientConfig(loadingRules)

	return clientConfig
}

var recommendedHomeFile = path.Join(homedir.HomeDir(), ".kube/config")

// newOpenShiftClientConfigLoadingRules is a modified copy of openshift/origin/pkg/cmd/cli/config.NewOpenShiftClientConfigLoadingRules.
// NewOpenShiftClientConfigLoadingRules returns file priority loading rules for OpenShift.
// 1. --config value
// 2. if KUBECONFIG env var has a value, use it. Otherwise, ~/.kube/config file
func newOpenShiftClientConfigLoadingRules() *clientConfigLoadingRules {
	chain := []string{}

	envVarFile := os.Getenv("KUBECONFIG")
	if len(envVarFile) != 0 {
		chain = append(chain, filepath.SplitList(envVarFile)...)
	} else {
		chain = append(chain, recommendedHomeFile)
	}

import (
	"path/filepath"

	"github.com/jimmidyson/minishift/pkg/version"
	"k8s.io/kubernetes/pkg/client/unversioned/clientcmd"
	"k8s.io/kubernetes/pkg/util/homedir"
)

// MachineName is the name to use for the VM.
const MachineName = "minishift"

// APIServerPort is the port that the API server should listen on.
const APIServerPort = 8443

// Fix for windows
var Minipath = filepath.Join(homedir.HomeDir(), ".minishift")

// TODO: Fix for windows
// KubeconfigPath is the path to the Kubernetes client config
var KubeconfigPath = clientcmd.RecommendedHomeFile

// MinikubeContext is the kubeconfig context name used for minishift
const MinikubeContext = "minishift"

// MiniShiftEnvPrefix is the prefix for the environmental variables
const MiniShiftEnvPrefix = "MINISHIFT"

// MakeMiniPath is a utility to calculate a relative path to our directory.
func MakeMiniPath(fileName ...string) string {
	args := []string{Minipath}
	args = append(args, fileName...)

import (
	"path/filepath"

	"k8s.io/kubernetes/pkg/client/unversioned/clientcmd"
	"k8s.io/kubernetes/pkg/util/homedir"
	"k8s.io/kubernetes/pkg/version"
)

// MachineName is the name to use for the VM.
const MachineName = "minikube"

// APIServerPort is the port that the API server should listen on.
const APIServerPort = 8443

// Minipath is the path to the user's minikube dir
var Minipath = filepath.Join(homedir.HomeDir(), ".minikube")

// KubeconfigPath is the path to the Kubernetes client config
var KubeconfigPath = clientcmd.RecommendedHomeFile

// MinikubeContext is the kubeconfig context name used for minikube
const MinikubeContext = "minikube"

// MinikubeEnvPrefix is the prefix for the environmental variables
const MinikubeEnvPrefix = "MINIKUBE"

// MakeMiniPath is a utility to calculate a relative path to our directory.
func MakeMiniPath(fileName ...string) string {
	args := []string{Minipath}
	args = append(args, fileName...)
	return filepath.Join(args...)

func main() {
	cmds := &cobra.Command{
		Use:   "gofabric8",
		Short: "gofabric8 is used to validate & deploy fabric8 components on to your Kubernetes or OpenShift environment",
		Long: `gofabric8 is used to validate & deploy fabric8 components on to your Kubernetes or OpenShift environment
								Find more information at http://fabric8.io.`,
		Run: runHelp,
	}

	cmds.PersistentFlags().String("fabric8-version", "latest", "fabric8 version")
	cmds.PersistentFlags().BoolP("yes", "y", false, "assume yes")
	cmds.PersistentFlags().BoolP(batchFlag, "b", false, "Run in batch mode to avoid prompts")

	f := cmdutil.NewFactory(nil)
	f.BindFlags(cmds.PersistentFlags())

	updated := false
	oldHandler := cmds.PersistentPreRun
	cmds.PersistentPreRun = func(cmd *cobra.Command, args []string) {
		if !updated {
			updated = true
			flag := cmds.Flags().Lookup(batchFlag)
			batch := false
			if flag != nil {
				batch = flag.Value.String() == "true"
			}

			if !batch {
				home := homedir.HomeDir()
				if home == "" {
					util.Fatalf("No user home environment variable found for OS %s", runtime.GOOS)
				}
				writeFileLocation := home + hiddenFolder
				err := os.MkdirAll(writeFileLocation, 0700)
				if err != nil {
					util.Errorf("Unable to create directory to store update file %s %v\n", writeFileLocation, err)
				}
				localVersion, err := version.GetSemverVersion()
				if err != nil {
					util.Errorf("Unable to get local version %v", err)
				}
				viper.SetDefault(config.WantUpdateNotification, true)
				viper.SetDefault(config.ReminderWaitPeriodInHours, 24)
				update.MaybeUpdate(os.Stdout, githubOrg, githubRepo, binaryName, writeFileLocation+lastUpdateCheck, localVersion)

			}
		}
		if oldHandler != nil {
			oldHandler(cmd, args)
		}
	}

	cmds.AddCommand(commands.NewCmdConsole(f))
	cmds.AddCommand(commands.NewCmdDeploy(f))
	cmds.AddCommand(commands.NewCmdDockerEnv(f))
	cmds.AddCommand(commands.NewCmdIngress(f))
	cmds.AddCommand(commands.NewCmdInstall(f))
	cmds.AddCommand(commands.NewCmdPull(f))
	cmds.AddCommand(commands.NewCmdRoutes(f))
	cmds.AddCommand(commands.NewCmdRun(f))
	cmds.AddCommand(commands.NewCmdSecrets(f))
	cmds.AddCommand(commands.NewCmdService(f))
	cmds.AddCommand(commands.NewCmdStart(f))
	cmds.AddCommand(commands.NewCmdValidate(f))
	cmds.AddCommand(commands.NewCmdVersion())
	cmds.AddCommand(commands.NewCmdVolumes(f))

	cmds.Execute()
}

// NewFactory creates an object that holds common methods across all OpenShift commands
func NewFactory(clientConfig kclientcmd.ClientConfig) *Factory {
	restMapper := registered.RESTMapper()

	clients := &clientCache{
		clients: make(map[string]*client.Client),
		configs: make(map[string]*restclient.Config),
		loader:  clientConfig,
	}

	w := &Factory{
		Factory:               cmdutil.NewFactory(clientConfig),
		OpenShiftClientConfig: clientConfig,
		clients:               clients,
	}

	w.Object = func(bool) (meta.RESTMapper, runtime.ObjectTyper) {

		defaultMapper := ShortcutExpander{RESTMapper: kubectl.ShortcutExpander{RESTMapper: restMapper}}
		defaultTyper := api.Scheme

		// Output using whatever version was negotiated in the client cache. The
		// version we decode with may not be the same as what the server requires.
		cfg, err := clients.ClientConfigForVersion(nil)
		if err != nil {
			return defaultMapper, defaultTyper
		}

		cmdApiVersion := unversioned.GroupVersion{}
		if cfg.GroupVersion != nil {
			cmdApiVersion = *cfg.GroupVersion
		}

		// at this point we've negotiated and can get the client
		oclient, err := clients.ClientForVersion(nil)
		if err != nil {
			return defaultMapper, defaultTyper
		}

		cacheDir := computeDiscoverCacheDir(filepath.Join(homedir.HomeDir(), ".kube"), cfg.Host)
		cachedDiscoverClient := NewCachedDiscoveryClient(client.NewDiscoveryClient(oclient.RESTClient), cacheDir, time.Duration(10*time.Minute))

		mapper := restmapper.NewDiscoveryRESTMapper(cachedDiscoverClient)
		mapper = NewShortcutExpander(cachedDiscoverClient, kubectl.ShortcutExpander{RESTMapper: mapper})
		return kubectl.OutputVersionMapper{RESTMapper: mapper, OutputVersions: []unversioned.GroupVersion{cmdApiVersion}}, api.Scheme
	}

	kClientForMapping := w.Factory.ClientForMapping
	w.ClientForMapping = func(mapping *meta.RESTMapping) (resource.RESTClient, error) {
		if latest.OriginKind(mapping.GroupVersionKind) {
			mappingVersion := mapping.GroupVersionKind.GroupVersion()
			client, err := clients.ClientForVersion(&mappingVersion)
			if err != nil {
				return nil, err
			}
			return client.RESTClient, nil
		}
		return kClientForMapping(mapping)
	}

	// Save original Describer function
	kDescriberFunc := w.Factory.Describer
	w.Describer = func(mapping *meta.RESTMapping) (kubectl.Describer, error) {
		if latest.OriginKind(mapping.GroupVersionKind) {
			oClient, kClient, err := w.Clients()
			if err != nil {
				return nil, fmt.Errorf("unable to create client %s: %v", mapping.GroupVersionKind.Kind, err)
			}

			mappingVersion := mapping.GroupVersionKind.GroupVersion()
			cfg, err := clients.ClientConfigForVersion(&mappingVersion)
			if err != nil {
				return nil, fmt.Errorf("unable to load a client %s: %v", mapping.GroupVersionKind.Kind, err)
			}

			describer, ok := describe.DescriberFor(mapping.GroupVersionKind.GroupKind(), oClient, kClient, cfg.Host)
			if !ok {
				return nil, fmt.Errorf("no description has been implemented for %q", mapping.GroupVersionKind.Kind)
			}
			return describer, nil
		}
		return kDescriberFunc(mapping)
	}
	kScalerFunc := w.Factory.Scaler
	w.Scaler = func(mapping *meta.RESTMapping) (kubectl.Scaler, error) {
		oc, kc, err := w.Clients()
		if err != nil {
			return nil, err
		}

		if mapping.GroupVersionKind.GroupKind() == deployapi.Kind("DeploymentConfig") {
			return deployscaler.NewDeploymentConfigScaler(oc, kc), nil
		}
		return kScalerFunc(mapping)
	}
	kReaperFunc := w.Factory.Reaper
	w.Reaper = func(mapping *meta.RESTMapping) (kubectl.Reaper, error) {
		oc, kc, err := w.Clients()
		if err != nil {
			return nil, err
//.........这里部分代码省略.........