Golang color.New函數代碼示例

func init() {
	// Initialize default loggers.
	Error = log.New(
		&context{
			c: color.New(color.FgRed, color.Bold),
			w: os.Stderr,
		}, "", 0,
	)
	Warn = log.New(
		&context{
			c: color.New(color.FgYellow),
			w: os.Stderr,
		}, "", 0,
	)
	Info = log.New(
		&context{
			c: color.New(color.FgGreen),
			w: os.Stdout,
		}, "", 0,
	)
	Trace = log.New(
		&context{
			c: color.New(color.FgCyan),
			w: os.Stdout,
		}, "", 0,
	)
}

// mainList - is a handler for mc ls command
func mainList(ctx *cli.Context) {
	checkListSyntax(ctx)

	args := ctx.Args()
	// Operating system tool behavior
	if globalMimicFlag && !ctx.Args().Present() {
		args = []string{"."}
	}

	console.SetCustomTheme(map[string]*color.Color{
		"File": color.New(color.FgWhite),
		"Dir":  color.New(color.FgCyan, color.Bold),
		"Size": color.New(color.FgYellow),
		"Time": color.New(color.FgGreen),
	})

	config := mustGetMcConfig()
	for _, arg := range args {
		targetURL, err := getCanonicalizedURL(arg, config.Aliases)
		fatalIf(err.Trace(arg), "Unable to parse argument ‘"+arg+"’.")

		// if recursive strip off the "..."
		err = doListCmd(stripRecursiveURL(targetURL), isURLRecursive(targetURL))
		fatalIf(err.Trace(targetURL), "Unable to list target ‘"+targetURL+"’.")
	}
}

// runTestsViaRunner runs all the tests at the given source path via the runner.
func runTestsViaRunner(runner TestRunner, path string) bool {
	log.Printf("Starting test run of %s via %v runner", path, runner.Title())

	// Run setup for the runner.
	err := runner.SetupIfNecessary()
	if err != nil {
		errHighlight := color.New(color.FgRed, color.Bold)
		errHighlight.Print("ERROR: ")

		text := color.New(color.FgWhite)
		text.Printf("Could not setup %s runner: %v\n", runner.Title(), err)
		return false
	}

	// Iterate over each test file in the source path. For each, compile the code into
	// JS at a temporary location and then pass the temporary location to the test
	// runner.
	return compilerutil.WalkSourcePath(path, func(currentPath string, info os.FileInfo) (bool, error) {
		if !strings.HasSuffix(info.Name(), "_test"+parser.SERULIAN_FILE_EXTENSION) {
			return false, nil
		}

		success, err := buildAndRunTests(currentPath, runner)
		if err != nil {
			return true, err
		}

		if success {
			return true, nil
		} else {
			return true, fmt.Errorf("Failure in test of file %s", currentPath)
		}
	})
}

func PrintUnassignedWarning(writer io.Writer, commits []*git.Commit) (n int64, err error) {
	var output bytes.Buffer

	// Let's be colorful!
	redBold := color.New(color.FgRed).Add(color.Bold).SprintFunc()
	fmt.Fprint(&output,
		redBold("Warning: There are some commits missing the Story-Id tag.\n"))

	red := color.New(color.FgRed).SprintFunc()
	fmt.Fprint(&output,
		red("Make sure that this is alright before proceeding further.\n\n"))

	hashRe := regexp.MustCompile("^[0-9a-f]{40}$")

	yellow := color.New(color.FgYellow).SprintFunc()

	for _, commit := range commits {
		var (
			sha    = commit.SHA
			source = commit.Source
			title  = prompt.ShortenCommitTitle(commit.MessageTitle)
		)
		if hashRe.MatchString(commit.Source) {
			source = "unknown commit source branch"
		}

		fmt.Fprintf(&output, "  %v | %v | %v\n", yellow(sha), yellow(source), title)
	}

	// Write the output to the writer.
	return io.Copy(ansicolor.NewAnsiColorWriter(writer), &output)
}

// mainConfig is the handle for "mc config" sub-command. writes configuration data in json format to config file.
func mainConfig(ctx *cli.Context) {
	checkConfigSyntax(ctx)

	// set new custom coloring
	console.SetCustomTheme(map[string]*color.Color{
		"Alias":        color.New(color.FgCyan, color.Bold),
		"AliasMessage": color.New(color.FgGreen, color.Bold),
		"URL":          color.New(color.FgWhite),
	})

	arg := ctx.Args().First()
	tailArgs := ctx.Args().Tail()

	switch strings.TrimSpace(arg) {
	case "add":
		if strings.TrimSpace(tailArgs.First()) == "alias" {
			addAlias(tailArgs.Get(1), tailArgs.Get(2))
		}
	case "remove":
		if strings.TrimSpace(tailArgs.First()) == "alias" {
			removeAlias(tailArgs.Get(1))
		}
	case "list":
		if strings.TrimSpace(tailArgs.First()) == "alias" {
			listAliases()
		}
	}
}

func (this *Wigo) GenerateSummary(showOnlyErrors bool) (summary string) {

	red := color.New(color.FgRed).SprintfFunc()
	yellow := color.New(color.FgYellow).SprintfFunc()

	summary += fmt.Sprintf("%s running on %s \n", this.Version, this.LocalHost.Name)
	summary += fmt.Sprintf("Local Status 	: %d\n", this.LocalHost.Status)
	summary += fmt.Sprintf("Global Status	: %d\n\n", this.GlobalStatus)

	if this.LocalHost.Status != 100 || !showOnlyErrors {
		summary += "Local probes : \n\n"

		for probeName := range this.LocalHost.Probes {
			if this.LocalHost.Probes[probeName].Status > 100 && this.LocalHost.Probes[probeName].Status < 300 {
				summary += yellow("\t%-25s : %d  %s\n", this.LocalHost.Probes[probeName].Name, this.LocalHost.Probes[probeName].Status, strings.Replace(this.LocalHost.Probes[probeName].Message, "%", "%%", -1))
			} else if this.LocalHost.Probes[probeName].Status >= 300 {
				summary += red("\t%-25s : %d  %s\n", this.LocalHost.Probes[probeName].Name, this.LocalHost.Probes[probeName].Status, strings.Replace(this.LocalHost.Probes[probeName].Message, "%", "%%", -1))
			} else {
				summary += fmt.Sprintf("\t%-25s : %d  %s\n", this.LocalHost.Probes[probeName].Name, this.LocalHost.Probes[probeName].Status, strings.Replace(this.LocalHost.Probes[probeName].Message, "%", "%%", -1))
			}
		}

		summary += "\n"
	}

	if this.GlobalStatus >= 200 && len(this.RemoteWigos) > 0 {
		summary += "Remote Wigos : \n\n"
	}

	summary += this.GenerateRemoteWigosSummary(0, showOnlyErrors, this.Version)

	return
}

func StatusMessage(view *gocui.View, data interface{}) {
	yellow := color.New(color.FgYellow).SprintFunc()
	white := color.New(color.FgWhite).SprintFunc()

	timestamp := time.Now().Format("03:04")
	fmt.Fprintf(view, "-> [%s] * %s\n", yellow(timestamp), white(data))
}

// mainList - is a handler for mc ls command
func mainList(ctx *cli.Context) {
	// Additional command speific theme customization.
	console.SetColor("File", color.New(color.FgWhite))
	console.SetColor("Dir", color.New(color.FgCyan, color.Bold))
	console.SetColor("Size", color.New(color.FgYellow))
	console.SetColor("Time", color.New(color.FgGreen))

	// check 'ls' cli arguments
	checkListSyntax(ctx)

	args := ctx.Args()
	isIncomplete := ctx.Bool("incomplete")

	// mimic operating system tool behavior
	if globalMimicFlag && !ctx.Args().Present() {
		args = []string{"."}
	}

	targetURLs, err := args2URLs(args.Head())
	fatalIf(err.Trace(args...), "One or more unknown URL types passed.")
	for _, targetURL := range targetURLs {
		// if recursive strip off the "..."
		var clnt client.Client
		clnt, err = url2Client(stripRecursiveURL(targetURL))
		fatalIf(err.Trace(targetURL), "Unable to initialize target ‘"+targetURL+"’.")

		err = doList(clnt, isURLRecursive(targetURL), isIncomplete)
		fatalIf(err.Trace(clnt.GetURL().String()), "Unable to list target ‘"+clnt.GetURL().String()+"’.")
	}
}

func main() {
	cy := color.New(color.FgCyan).Add(color.BlinkSlow).PrintfFunc()
	ma := color.New(color.FgMagenta).Add(color.BlinkSlow).PrintfFunc()

	c1 := make(chan string)
	c2 := make(chan string)

	go func() {
		time.Sleep(time.Second * 1)
		c1 <- "one"
	}()

	go func() {
		time.Sleep(time.Second * 2)
		c2 <- "two"
	}()

	for i := 0; i < 2; i++ {
		select {
		case msg1 := <-c1:
			cy("received %v ", msg1)
			emoji.Printf(":beer:\n")
		case msg2 := <-c2:
			ma("received %v ", msg2)
			emoji.Printf(":pizza:")
		}
	}
	fmt.Println("")
}

// shareSetColor sets colors share sub-commands.
func shareSetColor() {
	// Additional command speific theme customization.
	console.SetColor("Share", color.New(color.FgGreen, color.Bold))
	console.SetColor("Expires", color.New(color.FgRed, color.Bold))
	console.SetColor("URL", color.New(color.FgCyan, color.Bold))
	console.SetColor("File", color.New(color.FgRed, color.Bold))
}

// mainList - is a handler for mc ls command
func mainList(ctx *cli.Context) {
	// Additional command speific theme customization.
	console.SetColor("File", color.New(color.FgWhite))
	console.SetColor("Dir", color.New(color.FgCyan, color.Bold))
	console.SetColor("Size", color.New(color.FgYellow))
	console.SetColor("Time", color.New(color.FgGreen))

	// Set global flags from context.
	setGlobalsFromContext(ctx)

	// check 'ls' cli arguments.
	checkListSyntax(ctx)

	// Set command flags from context.
	isRecursive := ctx.Bool("recursive")
	isIncomplete := ctx.Bool("incomplete")

	args := ctx.Args()
	// mimic operating system tool behavior.
	if !ctx.Args().Present() {
		args = []string{"."}
	}

	for _, targetURL := range args {
		var clnt client.Client
		clnt, err := newClient(targetURL)
		fatalIf(err.Trace(targetURL), "Unable to initialize target ‘"+targetURL+"’.")

		err = doList(clnt, isRecursive, isIncomplete)
		if err != nil {
			errorIf(err.Trace(clnt.GetURL().String()), "Unable to list target ‘"+clnt.GetURL().String()+"’.")
			continue
		}
	}
}

func ExecuteCommand(c *template.Template, fname string) error {
	cmdStr, err := evalTemplate(c, &templateArg{File: fname})
	if err != nil {
		return err
	}

	cmd := exec.Command("bash", "-c", cmdStr)
	cmd.Stdout = os.Stdout
	cmd.Stderr = os.Stderr
	cmd.Stdin = os.Stdin

	fmt.Println()
	color.New(color.Bold).Printf("Execute by letter > ")
	fmt.Println(cmdStr)

	err = cmd.Run()
	status, err := exitStatus(err)
	if err != nil {
		return err
	}
	color.New(color.Bold).Print("Finished command with status code ")

	var colorAttr color.Attribute
	if status == 0 {
		colorAttr = color.FgGreen
	} else {
		colorAttr = color.FgRed
	}
	color.New(color.Bold, colorAttr).Println(status)

	return nil
}

//SetChannelState sets the Channel inside the State
func SetChannelState(dg *discordgo.Session) {
	State.InsertMode = false

	guild := State.Guild
	d := color.New(color.FgYellow, color.Bold)
	d.Printf("Select a Channel:\n")
	for key, channel := range guild.Channels {
		if channel.Type == "text" {
			fmt.Printf("%d:%s\n", key, channel.Name)
		}
	}

	var response int
	fmt.Scanf("%d\n", &response)
	for guild.Channels[response].Type != "text" {
		Error := color.New(color.FgRed, color.Bold)
		Error.Printf("That's a voice channel, you know this is a CLI right?\n")
		d.Printf("Select a Channel:\n")
		fmt.Scanf("%d\n", &response)
	}

	State.Channel = guild.Channels[response]

	Clear()

	State.InsertMode = true
}

func (l *Summary) Print(out io.Writer, colored bool) {
	info := func(a ...interface{}) { fmt.Fprintln(out, a...) }
	warn := info
	fail := info
	success := info

	color.Output = out
	if colored {
		warn = color.New(color.FgYellow).PrintlnFunc()
		fail = color.New(color.FgRed).PrintlnFunc()
		success = color.New(color.FgGreen).PrintlnFunc()
	}
	if len(l.Errors) == 0 {
		message := "[OK] All is well!"
		success(message)
		return
	}

	for _, e := range l.Errors {
		switch e.Level {
		case 0:
			info(e.Error())
		case 1:
			warn(e.Error())
		case 2:
			fail(e.Error())
		}
	}
	if l.Severity() > 1 {
		message := "[CRITICAL] Some critical problems found."
		fail(message)
	}
}

// mainDiff - is a handler for mc diff command
func mainDiff(ctx *cli.Context) {
	checkDiffSyntax(ctx)

	console.SetCustomTheme(map[string]*color.Color{
		"DiffMessage":     color.New(color.FgGreen, color.Bold),
		"DiffOnlyInFirst": color.New(color.FgRed, color.Bold),
		"DiffType":        color.New(color.FgYellow, color.Bold),
		"DiffSize":        color.New(color.FgMagenta, color.Bold),
	})

	config := mustGetMcConfig()
	firstArg := ctx.Args().First()
	secondArg := ctx.Args().Last()

	firstURL, err := getCanonicalizedURL(firstArg, config.Aliases)
	fatalIf(err.Trace(firstArg), "Unable to parse first argument ‘"+firstArg+"’.")

	secondURL, err := getCanonicalizedURL(secondArg, config.Aliases)
	fatalIf(err.Trace(secondArg), "Unable to parse second argument ‘"+secondArg+"’.")

	newFirstURL := stripRecursiveURL(firstURL)
	for diff := range doDiffCmd(newFirstURL, secondURL, isURLRecursive(firstURL)) {
		fatalIf(diff.Error.Trace(newFirstURL, secondURL), "Failed to diff ‘"+firstURL+"’ and ‘"+secondURL+"’.")
		console.Println(diff.String())
	}
}