Golang tabwriter.NewWriter函数代码示例

//line fitted_type.got:17
func drawFittedTableQLetters(rSeq, qSeq alphabet.QLetters, index alphabet.Index, table []int, a [][]int) {
	tw := tabwriter.NewWriter(os.Stdout, 0, 0, 0, ' ', tabwriter.AlignRight|tabwriter.Debug)
	fmt.Printf("rSeq: %s\n", rSeq)
	fmt.Printf("qSeq: %s\n", qSeq)
	fmt.Fprint(tw, "\tqSeq\t")
	for _, l := range qSeq {
		fmt.Fprintf(tw, "%c\t", l)
	}
	fmt.Fprintln(tw)

	r, c := rSeq.Len()+1, qSeq.Len()+1
	fmt.Fprint(tw, "rSeq\t")
	for i := 0; i < r; i++ {
		if i != 0 {
			fmt.Fprintf(tw, "%c\t", rSeq[i-1].L)
		}

		for j := 0; j < c; j++ {
			p := pointerFittedQLetters(rSeq, qSeq, i, j, table, index, a, c)
			if p != "" {
				fmt.Fprintf(tw, "%s % 3v\t", p, table[i*c+j])
			} else {
				fmt.Fprintf(tw, "%v\t", table[i*c+j])
			}
		}
		fmt.Fprintln(tw)
	}
	tw.Flush()
}

// createCluster generates a new cluster using the provided stopper and the
// number of nodes supplied. Each node will have one store to start.
func createCluster(
	stopper *stop.Stopper,
	nodeCount int,
	epochWriter, actionWriter io.Writer,
	script Script,
	rand *rand.Rand,
) *Cluster {
	clock := hlc.NewClock(hlc.UnixNano)
	rpcContext := rpc.NewContext(nil, clock, stopper)
	g := gossip.New(rpcContext, nil, stopper)
	// NodeID is required for Gossip, so set it to -1 for the cluster Gossip
	// instance to prevent conflicts with real NodeIDs.
	g.SetNodeID(-1)
	storePool := storage.NewStorePool(g, clock, storage.TestTimeUntilStoreDeadOff, stopper)
	c := &Cluster{
		stopper:   stopper,
		clock:     clock,
		rpc:       rpcContext,
		gossip:    g,
		storePool: storePool,
		allocator: storage.MakeAllocator(storePool, storage.AllocatorOptions{
			AllowRebalance: true,
			Deterministic:  true,
		}),
		storeGossiper:   gossiputil.NewStoreGossiper(g),
		nodes:           make(map[roachpb.NodeID]*Node),
		stores:          make(map[roachpb.StoreID]*Store),
		ranges:          make(map[roachpb.RangeID]*Range),
		rangeIDsByStore: make(map[roachpb.StoreID]roachpb.RangeIDSlice),
		rand:            rand,
		epochWriter:     tabwriter.NewWriter(epochWriter, 8, 1, 2, ' ', 0),
		actionWriter:    tabwriter.NewWriter(actionWriter, 8, 1, 2, ' ', 0),
		script:          script,
		epoch:           -1,
	}

	// Add the nodes.
	for i := 0; i < nodeCount; i++ {
		c.addNewNodeWithStore()
	}

	// Add a single range and add to this first node's first store.
	firstRange := c.addRange()
	firstRange.addReplica(c.stores[0])

	c.calculateRangeIDsByStore()

	// Output the first epoch header.
	c.epoch = 0
	c.OutputEpochHeader()
	c.OutputEpoch()
	c.flush()

	return c
}

// createCluster generates a new cluster using the provided stopper and the
// number of nodes supplied. Each node will have one store to start.
func createCluster(stopper *stop.Stopper, nodeCount int, epochWriter, actionWriter io.Writer, script Script) *Cluster {
	rand, seed := randutil.NewPseudoRand()
	clock := hlc.NewClock(hlc.UnixNano)
	rpcContext := rpc.NewContext(&base.Context{}, clock, stopper)
	g := gossip.New(rpcContext, gossip.TestInterval, gossip.TestBootstrap)
	storePool := storage.NewStorePool(g, storage.TestTimeUntilStoreDeadOff, stopper)
	c := &Cluster{
		stopper:   stopper,
		clock:     clock,
		rpc:       rpcContext,
		gossip:    g,
		storePool: storePool,
		allocator: storage.MakeAllocator(storePool, storage.RebalancingOptions{
			AllowRebalance: true,
			Deterministic:  true,
		}),
		storeGossiper:   gossiputil.NewStoreGossiper(g),
		nodes:           make(map[roachpb.NodeID]*Node),
		stores:          make(map[roachpb.StoreID]*Store),
		ranges:          make(map[roachpb.RangeID]*Range),
		rangeIDsByStore: make(map[roachpb.StoreID]roachpb.RangeIDSlice),
		rand:            rand,
		seed:            seed,
		epochWriter:     tabwriter.NewWriter(epochWriter, 8, 1, 2, ' ', 0),
		actionWriter:    tabwriter.NewWriter(actionWriter, 8, 1, 2, ' ', 0),
		script:          script,
		epoch:           -1,
	}

	// Add the nodes.
	for i := 0; i < nodeCount; i++ {
		c.addNewNodeWithStore()
	}

	// Add a single range and add to this first node's first store.
	firstRange := c.addRange()
	firstRange.addReplica(c.stores[0])

	c.calculateRangeIDsByStore()

	// Output the first epoch header.
	c.epoch = 0
	c.OutputEpochHeader()
	c.OutputEpoch()
	c.flush()

	return c
}

func (s *Simulator) Help(args []string) {
	w := tabwriter.NewWriter(s.out, 0, 8, 0, '\t', 0)
	for _, c := range s.commands {
		fmt.Fprintf(w, "%s\t%s\t%s\n", c.Name, c.Args, c.Help)
	}
	w.Flush()
}

func listTask(ctx *cli.Context) {
	tasks := pClient.GetTasks()
	if tasks.Err != nil {
		fmt.Printf("Error getting tasks:\n%v\n", tasks.Err)
		os.Exit(1)
	}

	w := tabwriter.NewWriter(os.Stdout, 0, 8, 1, '\t', 0)
	printFields(w, false, 0,
		"ID",
		"NAME",
		"STATE",
		"HIT",
		"MISS",
		"FAIL",
		"CREATED",
		"LAST FAILURE",
	)
	for _, task := range tasks.ScheduledTasks {
		printFields(w, false, 0,
			task.ID,
			task.Name,
			task.State,
			trunc(task.HitCount),
			trunc(task.MissCount),
			trunc(task.FailedCount),
			task.CreationTime().Format(unionParseFormat),
			task.LastFailureMessage,
		)
	}
	w.Flush()
}

func (cmd *ls) Run(f *flag.FlagSet) error {
	ctx := context.TODO()

	c, err := cmd.Client()
	if err != nil {
		return err
	}

	m, err := object.GetCustomFieldsManager(c)
	if err != nil {
		return err
	}

	field, err := m.Field(ctx)
	if err != nil {
		return err
	}

	tw := tabwriter.NewWriter(os.Stdout, 2, 0, 2, ' ', 0)

	for _, def := range field {
		fmt.Fprintf(tw, "%d\t%s\n", def.Key, def.Name)
	}

	return tw.Flush()
}

func (srv *Server) CmdHistory(stdin io.ReadCloser, stdout io.Writer, args ...string) error {
	cmd := rcli.Subcmd(stdout, "history", "IMAGE", "Show the history of an image")
	if err := cmd.Parse(args); err != nil {
		return nil
	}
	if cmd.NArg() != 1 {
		cmd.Usage()
		return nil
	}
	image, err := srv.runtime.repositories.LookupImage(cmd.Arg(0))
	if err != nil {
		return err
	}
	w := tabwriter.NewWriter(stdout, 20, 1, 3, ' ', 0)
	defer w.Flush()
	fmt.Fprintln(w, "ID\tCREATED\tCREATED BY")
	return image.WalkHistory(func(img *Image) error {
		fmt.Fprintf(w, "%s\t%s\t%s\n",
			srv.runtime.repositories.ImageName(img.ShortId()),
			HumanDuration(time.Now().Sub(img.Created))+" ago",
			strings.Join(img.ContainerConfig.Cmd, " "),
		)
		return nil
	})
}

func (cli *DockerCli) CmdHistory(args ...string) error {
	cmd := Subcmd("history", "IMAGE", "Show the history of an image")
	if err := cmd.Parse(args); err != nil {
		return nil
	}
	if cmd.NArg() != 1 {
		cmd.Usage()
		return nil
	}

	body, _, err := cli.call("GET", "/images/"+cmd.Arg(0)+"/history", nil)
	if err != nil {
		return err
	}

	var outs []ApiHistory
	err = json.Unmarshal(body, &outs)
	if err != nil {
		return err
	}
	w := tabwriter.NewWriter(os.Stdout, 20, 1, 3, ' ', 0)
	fmt.Fprintln(w, "ID\tCREATED\tCREATED BY")

	for _, out := range outs {
		fmt.Fprintf(w, "%s\t%s ago\t%s\n", out.Id, utils.HumanDuration(time.Now().Sub(time.Unix(out.Created, 0))), out.CreatedBy)
	}
	w.Flush()
	return nil
}

func (cmd *esxcli) formatTable(res *Response) {
	fields := res.Info.Hints.Fields()

	tw := tabwriter.NewWriter(os.Stdout, len(fields), 0, 2, ' ', 0)

	var hr []string
	for _, name := range fields {
		hr = append(hr, strings.Repeat("-", len(name)))
	}

	fmt.Fprintln(tw, strings.Join(fields, "\t"))
	fmt.Fprintln(tw, strings.Join(hr, "\t"))

	for _, vals := range res.Values {
		var row []string

		for _, name := range fields {
			key := strings.Replace(name, " ", "", -1)
			if val, ok := vals[key]; ok {
				row = append(row, strings.Join(val, ", "))
			} else {
				row = append(row, "")
			}
		}

		fmt.Fprintln(tw, strings.Join(row, "\t"))
	}

	_ = tw.Flush()
}

// Print all the images based on SUSE. It will print in a format that is as
// close to the `docker` command as possible.
func printImages(imgs []*dockerclient.Image) {
	w := tabwriter.NewWriter(os.Stdout, 20, 1, 3, ' ', 0)
	fmt.Fprintf(w, "REPOSITORY\tTAG\tIMAGE ID\tCREATED\tVIRTUAL SIZE\n")

	cache := getCacheFile()
	for counter, img := range imgs {
		fmt.Printf("Inspecting image %d/%d\r", (counter + 1), len(imgs))
		if cache.isSUSE(img.Id) {
			if len(img.RepoTags) < 1 {
				continue
			}

			id := stringid.TruncateID(img.Id)
			size := units.HumanSize(float64(img.VirtualSize))
			for _, tag := range img.RepoTags {
				t := strings.SplitN(tag, ":", 2)
				fmt.Fprintf(w, "%s\t%s\t%s\t%s ago\t%s\n", t[0], t[1], id,
					timeAgo(img.Created), size)
			}
		}
	}

	fmt.Printf("\n")

	_ = w.Flush()
	cache.flush()
}

// String formats headers by outputting headers and values in equal columns, sorted alphabetically by header. Repeated headers are marked with an asterisk.
func (h ResponseHeader) String() string {
	// Sort headers; get max header string length
	sortedHeaderKeys := make([]string, 0, len(h))
	for header := range h {
		sortedHeaderKeys = append(sortedHeaderKeys, header)
	}
	sort.Strings(sortedHeaderKeys)

	// Use a tabwriter to pretty print the output to a buffer
	var (
		buf bytes.Buffer
		tw  = tabwriter.NewWriter(&buf, 0, 0, 2, ' ', 0)
	)
	for _, headerKey := range sortedHeaderKeys {
		for i, headerValue := range h[headerKey] {
			// Flag repeated values with an asterisk
			asterisk := ""
			if i > 0 {
				asterisk = " *"
			}

			// Prevent long lines by breaking at "; "
			if len(headerValue) > 50 {
				headerValue = strings.Replace(headerValue, "; ", ";\n...\t", -1)
			}
			fmt.Fprintf(tw, "%s%s\t%s\n", headerKey, asterisk, headerValue)
		}
	}
	tw.Flush()
	return buf.String()
}

func cmdCreate(c *cli.Context) {
	utils.FlagsRequired(c, []string{"name", "domain_id", "ssh_profile_id", "firewall_profile_id"})
	webservice, err := webservice.NewWebService()
	utils.CheckError(err)

	v := make(map[string]string)

	v["name"] = c.String("name")
	v["domain_id"] = c.String("domain_id")
	v["ssh_profile_id"] = c.String("ssh_profile_id")
	v["firewall_profile_id"] = c.String("firewall_profile_id")

	jsonBytes, err := json.Marshal(v)
	utils.CheckError(err)
	err, res, code := webservice.Post("/v1/cloud/workspaces", jsonBytes)
	if res == nil {
		log.Fatal(err)
	}
	utils.CheckError(err)
	utils.CheckReturnCode(code, res)

	var workspace Workspace
	err = json.Unmarshal(res, &workspace)
	utils.CheckError(err)

	w := tabwriter.NewWriter(os.Stdout, 15, 1, 3, ' ', 0)
	fmt.Fprintln(w, "ID\tNAME\tDEFAULT\tDOMAIN ID\tSSH PROFILE ID\tFIREWALL PROFILE ID\r")
	fmt.Fprintf(w, "%s\t%s\t%t\t%s\t%s\t%s\n", workspace.Id, workspace.Name, workspace.Default, workspace.Domain_id, workspace.Ssh_profile_id, workspace.Firewall_profile_id)

	w.Flush()

}

func (r *infoResult) Write(w io.Writer) error {
	// Maintain order via r.objects as Property collector does not always return results in order.
	objects := make(map[types.ManagedObjectReference]mo.HostSystem, len(r.HostSystems))
	for _, o := range r.HostSystems {
		objects[o.Reference()] = o
	}

	tw := tabwriter.NewWriter(os.Stdout, 2, 0, 2, ' ', 0)

	for _, o := range r.objects {
		host := objects[o.Reference()]
		s := host.Summary
		h := s.Hardware
		z := s.QuickStats
		ncpu := int32(h.NumCpuPkgs * h.NumCpuCores)
		cpuUsage := 100 * float64(z.OverallCpuUsage) / float64(ncpu*h.CpuMhz)
		memUsage := 100 * float64(z.OverallMemoryUsage<<20) / float64(h.MemorySize)

		fmt.Fprintf(tw, "Name:\t%s\n", s.Config.Name)
		fmt.Fprintf(tw, "  Path:\t%s\n", o.InventoryPath)
		fmt.Fprintf(tw, "  Manufacturer:\t%s\n", h.Vendor)
		fmt.Fprintf(tw, "  Logical CPUs:\t%d CPUs @ %dMHz\n", ncpu, h.CpuMhz)
		fmt.Fprintf(tw, "  Processor type:\t%s\n", h.CpuModel)
		fmt.Fprintf(tw, "  CPU usage:\t%d MHz (%.1f%%)\n", z.OverallCpuUsage, cpuUsage)
		fmt.Fprintf(tw, "  Memory:\t%dMB\n", h.MemorySize/(1024*1024))
		fmt.Fprintf(tw, "  Memory usage:\t%d MB (%.1f%%)\n", z.OverallMemoryUsage, memUsage)
		fmt.Fprintf(tw, "  Boot time:\t%s\n", s.Runtime.BootTime)
	}

	return tw.Flush()
}

func runReleaseShow(args *docopt.Args, client *controller.Client) error {
	var release *ct.Release
	var err error
	if args.String["<id>"] != "" {
		release, err = client.GetRelease(args.String["<id>"])
	} else {
		release, err = client.GetAppRelease(mustApp())
	}
	if err != nil {
		return err
	}
	var artifactDesc string
	if release.ArtifactID != "" {
		artifact, err := client.GetArtifact(release.ArtifactID)
		if err != nil {
			return err
		}
		artifactDesc = fmt.Sprintf("%s+%s", artifact.Type, artifact.URI)
	}
	types := make([]string, 0, len(release.Processes))
	for typ := range release.Processes {
		types = append(types, typ)
	}
	w := tabwriter.NewWriter(os.Stdout, 1, 2, 2, ' ', 0)
	defer w.Flush()
	listRec(w, "ID:", release.ID)
	listRec(w, "Artifact:", artifactDesc)
	listRec(w, "Process Types:", strings.Join(types, ", "))
	listRec(w, "Created At:", release.CreatedAt)
	for k, v := range release.Env {
		listRec(w, fmt.Sprintf("ENV[%s]", k), v)
	}
	return nil
}

// PrintDefaults prints, to standard error unless configured
// otherwise, the default values of all defined flags in the set.
func (f *FlagSet) PrintDefaults() {
	writer := tabwriter.NewWriter(f.Out(), 20, 1, 3, ' ', 0)
	home := homedir.Get()

	// Don't substitute when HOME is /
	if runtime.GOOS != "windows" && home == "/" {
		home = ""
	}
	f.VisitAll(func(flag *Flag) {
		format := "  -%s=%s"
		names := []string{}
		for _, name := range flag.Names {
			if name[0] != '#' {
				names = append(names, name)
			}
		}
		if len(names) > 0 {
			val := flag.DefValue

			if home != "" && strings.HasPrefix(val, home) {
				val = homedir.GetShortcutString() + val[len(home):]
			}

			fmt.Fprintf(writer, format, strings.Join(names, ", -"), val)
			for i, line := range strings.Split(flag.Usage, "\n") {
				if i != 0 {
					line = "  " + line
				}
				fmt.Fprintln(writer, "\t", line)
			}
		}
	})
	writer.Flush()
}