Merge themes as settable from outside console, add a default theme as well.

flags.go

@@ -16,13 +16,7 @@
 
 package main
 
-import (
+import "github.com/minio/mc/internal/github.com/minio/cli"
-	"fmt"
-	"strings"
-
-	"github.com/minio/mc/internal/github.com/minio/cli"
-	"github.com/minio/mc/pkg/console"
-)
 
 // Collection of mc commands currently supported are
 var commands = []cli.Command{}
@@ -47,21 +41,6 @@ var (
 		Usage: "Mimic operating system toolchain behavior wherever it makes sense",
 	}
 
-	themeFlag = cli.StringFlag{
-		Name:  "theme",
-		Value: console.GetDefaultThemeName(),
-		Usage: fmt.Sprintf("Choose a console theme from this list [%s]", func() string {
-			keys := []string{}
-			for _, themeName := range console.GetThemeNames() {
-				if console.GetThemeName() == themeName {
-					themeName = "*" + themeName + "*"
-				}
-				keys = append(keys, themeName)
-			}
-			return strings.Join(keys, ", ")
-		}()),
-	}
-
 	jsonFlag = cli.BoolFlag{
 		Name:  "json",
 		Usage: "Enable json formatted output",

ls-json.go

@@ -18,6 +18,7 @@ package main
 
 import (
 	"encoding/json"
+	"fmt"
 
 	"github.com/minio/mc/pkg/console"
 )
@@ -33,13 +34,13 @@ type ContentMessage struct {
 // String string printer for Content metadata
 func (c ContentMessage) String() string {
 	if !globalJSONFlag {
-		message := console.Time("[%s] ", c.Time)
+		message := console.Colorize("Time", fmt.Sprintf("[%s] ", c.Time))
-		message = message + console.Size("%6s ", c.Size)
+		message = message + console.Colorize("Size", fmt.Sprintf("%6s ", c.Size))
 		message = func() string {
 			if c.Filetype == "folder" {
-				return message + console.Dir("%s", c.Name)
+				return message + console.Colorize("Dir", fmt.Sprintf("%s", c.Name))
 			}
-			return message + console.File("%s", c.Name)
+			return message + console.Colorize("File", fmt.Sprintf("%s", c.Name))
 		}()
 		return message + "\n"
 	}

main.go

@@ -78,18 +78,9 @@ func registerBefore(ctx *cli.Context) error {
 	globalMimicFlag = ctx.GlobalBool("mimic")
 	globalDebugFlag = ctx.GlobalBool("debug")
 	globalJSONFlag = ctx.GlobalBool("json")
-	themeName := ctx.GlobalString("theme")
 	if globalDebugFlag {
 		console.NoDebugPrint = false
 	}
-	if console.IsValidTheme(themeName) != true {
-		console.Errorf("Invalid theme, please choose from the following list: %s.\n", console.GetThemeNames())
-		return errInvalidTheme{Theme: themeName}
-	}
-
-	if err := console.SetTheme(themeName); err != nil {
-		errorIf(err, "Unable to set theme")
-	}
 
 	verifyMCRuntime()
 
@@ -128,7 +119,6 @@ func registerApp() *cli.App {
 	registerFlag(configFlag) // path to config folder
 	registerFlag(quietFlag)  // suppress console output
 	registerFlag(mimicFlag)  // OS toolchain mimic
-	registerFlag(themeFlag)  // console theme flag
 	registerFlag(jsonFlag)   // json formatted output
 	registerFlag(debugFlag)  // enable debugging output
 

pb.go

@@ -156,7 +156,7 @@ func newCpBar() barSend {
 		bar.NotPrint = true
 		bar.ShowSpeed = true
 		bar.Callback = func(s string) {
-			console.Bar("\r" + s)
+			console.Colorize("Bar", ("\r" + s))
 		}
 		switch runtime.GOOS {
 		case "linux":

pkg/console/console.go

@@ -41,21 +41,21 @@ var IsExited = false
 // IsError sets this boolean value if Error is called when IsTesting is enabled
 var IsError = false
 
-// Theme holds console color scheme
+// Theme default map
-type Theme struct {
+var Theme = map[string]*color.Color{
-	Fatal     *color.Color
+	"Debug":     color.New(color.FgWhite, color.Faint, color.Italic),
-	Error     *color.Color
+	"Fatal":     color.New(color.FgRed, color.Italic, color.Bold),
-	Info      *color.Color
+	"Error":     color.New(color.FgYellow, color.Italic),
-	Debug     *color.Color
+	"Info":      color.New(color.FgGreen, color.Bold),
-	Size      *color.Color
+	"File":      color.New(color.FgWhite),
-	Time      *color.Color
+	"Dir":       color.New(color.FgCyan, color.Bold),
-	File      *color.Color
+	"Command":   color.New(color.FgWhite, color.Bold),
-	Dir       *color.Color
+	"SessionID": color.New(color.FgYellow, color.Bold),
-	Command   *color.Color
+	"Size":      color.New(color.FgYellow),
-	SessionID *color.Color
+	"Time":      color.New(color.FgGreen),
-	Bar       *color.Color
+	"Bar":       color.New(color.FgGreen, color.Bold),
-	PrintC    *color.Color
+	"Print":     color.New(),
-	Print     *color.Color
+	"PrintC":    color.New(color.FgGreen, color.Bold),
 }
 
 var (
@@ -63,47 +63,33 @@ var (
 
 	stderrColoredOutput = ansicolor.NewAnsiColorWriter(os.Stderr)
 
-	// themesDB contains supported list of Themes
-	themesDB = map[string]Theme{
-		"minimal": MiniTheme,
-		"nocolor": NoColorTheme,
-		"white":   WhiteTheme,
-	}
-
-	// currTheme is current theme
-	currThemeName = GetDefaultThemeName()
-
-	// Bar print progress bar
-	Bar = func(data ...interface{}) {
-		print(themesDB[currThemeName].Bar, data...)
-	}
-
 	// Print prints a message
 	Print = func(data ...interface{}) {
-		print(themesDB[currThemeName].Print, data...)
+		consolePrint("Print", Theme["Print"], data...)
 		return
 	}
 
 	// PrintC prints a message with color
 	PrintC = func(data ...interface{}) {
-		print(themesDB[currThemeName].PrintC, data...)
+		consolePrint("PrintC", Theme["PrintC"], data...)
 		return
 	}
 
 	// Printf prints a formatted message
-	Printf = func(f string, data ...interface{}) {
+	Printf = func(format string, data ...interface{}) {
-		printf(themesDB[currThemeName].Print, f, data...)
+		consolePrintf("Print", Theme["Print"], format, data...)
 		return
 	}
 
 	// Println prints a message with a newline
 	Println = func(data ...interface{}) {
-		println(themesDB[currThemeName].Print, data...)
+		consolePrintln("Print", Theme["Print"], data...)
+		return
 	}
 
 	// Fatal print a error message and exit
 	Fatal = func(data ...interface{}) {
-		print(themesDB[currThemeName].Fatal, data...)
+		consolePrint("Fatal", Theme["Fatal"], data...)
 		if !IsTesting {
 			os.Exit(1)
 		}
@@ -114,8 +100,8 @@ var (
 	}
 
 	// Fatalf print a error message with a format specified and exit
-	Fatalf = func(f string, data ...interface{}) {
+	Fatalf = func(format string, data ...interface{}) {
-		printf(themesDB[currThemeName].Fatal, f, data...)
+		consolePrintf("Fatal", Theme["Fatal"], format, data...)
 		if !IsTesting {
 			os.Exit(1)
 		}
@@ -127,7 +113,7 @@ var (
 
 	// Fatalln print a error message with a new line and exit
 	Fatalln = func(data ...interface{}) {
-		println(themesDB[currThemeName].Fatal, data...)
+		consolePrintln("Fatal", Theme["Fatal"], data...)
 		if !IsTesting {
 			os.Exit(1)
 		}
@@ -144,18 +130,18 @@ var (
 				IsError = true
 			}()
 		}
-		print(themesDB[currThemeName].Error, data...)
+		consolePrint("Error", Theme["Error"], data...)
 		return
 	}
 
 	// Errorf print a error message with a format specified
-	Errorf = func(f string, data ...interface{}) {
+	Errorf = func(format string, data ...interface{}) {
 		if IsTesting {
 			defer func() {
 				IsError = true
 			}()
 		}
-		printf(themesDB[currThemeName].Error, f, data...)
+		consolePrintf("Error", Theme["Error"], format, data...)
 		return
 	}
 
@@ -166,25 +152,25 @@ var (
 				IsError = true
 			}()
 		}
-		println(themesDB[currThemeName].Error, data...)
+		consolePrintln("Error", Theme["Error"], data...)
 		return
 	}
 
 	// Info prints a informational message
 	Info = func(data ...interface{}) {
-		print(themesDB[currThemeName].Info, data...)
+		consolePrint("Info", Theme["Info"], data...)
 		return
 	}
 
 	// Infof prints a informational message in custom format
-	Infof = func(f string, data ...interface{}) {
+	Infof = func(format string, data ...interface{}) {
-		printf(themesDB[currThemeName].Info, f, data...)
+		consolePrintf("Info", Theme["Info"], format, data...)
 		return
 	}
 
 	// Infoln prints a informational message with a new line
 	Infoln = func(data ...interface{}) {
-		println(themesDB[currThemeName].Info, data...)
+		consolePrintln("Info", Theme["Info"], data...)
 		return
 	}
 
@@ -192,82 +178,41 @@ var (
 	// Debug prints a debug message
 	Debug = func(data ...interface{}) {
 		if !NoDebugPrint {
-			print(themesDB[currThemeName].Debug, data...)
+			consolePrint("Debug", Theme["Debug"], data...)
 		}
 	}
 
 	// Debugf prints a debug message with a new line
-	Debugf = func(f string, data ...interface{}) {
+	Debugf = func(format string, data ...interface{}) {
 		if !NoDebugPrint {
-			printf(themesDB[currThemeName].Debug, f, data...)
+			consolePrintf("Debug", Theme["Debug"], format, data...)
 		}
 	}
 
 	// Debugln prints a debug message with a new line
 	Debugln = func(data ...interface{}) {
 		if !NoDebugPrint {
-			println(themesDB[currThemeName].Debug, data...)
+			consolePrintln("Debug", Theme["Debug"], data...)
 		}
 	}
 
-	// Time helper to print Time theme
+	Colorize = func(tag string, data interface{}) string {
-	Time = func(format string, data ...interface{}) string {
 		if isatty.IsTerminal(os.Stdout.Fd()) {
-			return themesDB[currThemeName].Time.SprintfFunc()(format, data...)
+			return Theme[tag].SprintFunc()(data)
 		}
-		return fmt.Sprintf(format, data...)
+		return fmt.Sprint(data)
-	}
-
-	// Size helper to print Size theme
-	Size = func(format string, data ...interface{}) string {
-		if isatty.IsTerminal(os.Stdout.Fd()) {
-			return themesDB[currThemeName].Size.SprintfFunc()(format, data...)
-		}
-		return fmt.Sprintf(format, data...)
-	}
-
-	// File helper to print File theme
-	File = func(format string, data ...interface{}) string {
-		if isatty.IsTerminal(os.Stdout.Fd()) {
-			return themesDB[currThemeName].File.SprintfFunc()(format, data...)
-		}
-		return fmt.Sprintf(format, data...)
-	}
-
-	// Dir helper to print Dir theme
-	Dir = func(format string, data ...interface{}) string {
-		if isatty.IsTerminal(os.Stdout.Fd()) {
-			return themesDB[currThemeName].Dir.SprintfFunc()(format, data...)
-		}
-		return fmt.Sprintf(format, data...)
-	}
-
-	// Command helper to print command theme
-	Command = func(format string, data ...interface{}) string {
-		if isatty.IsTerminal(os.Stdout.Fd()) {
-			return themesDB[currThemeName].Command.SprintfFunc()(format, data...)
-		}
-		return fmt.Sprintf(format, data...)
-	}
-
-	// SessionID helper to print sessionid theme
-	SessionID = func(format string, data ...interface{}) string {
-		if isatty.IsTerminal(os.Stdout.Fd()) {
-			return themesDB[currThemeName].SessionID.SprintfFunc()(format, data...)
-		}
-		return fmt.Sprintf(format, data...)
 	}
 )
 
 var (
 	// wrap around standard fmt functions
-	// print prints a message prefixed with message type and program name
+	// consolePrint prints a message prefixed with message type and program name
-	print = func(c *color.Color, a ...interface{}) {
+	consolePrint = func(tag string, c *color.Color, a ...interface{}) {
 		mutex.Lock()
 		defer mutex.Unlock()
 
-		switch c {
+		switch tag {
-		case themesDB[currThemeName].Debug:
+		case "Debug":
 			output := color.Output
 			color.Output = stderrColoredOutput
 			if isatty.IsTerminal(os.Stderr.Fd()) {
@@ -278,9 +223,9 @@ var (
 				fmt.Fprint(color.Output, a...)
 			}
 			color.Output = output
-		case themesDB[currThemeName].Fatal:
+		case "Fatal":
 			fallthrough
-		case themesDB[currThemeName].Error:
+		case "Error":
 			output := color.Output
 			color.Output = stderrColoredOutput
 			if isatty.IsTerminal(os.Stderr.Fd()) {
@@ -291,7 +236,7 @@ var (
 				fmt.Fprint(color.Output, a...)
 			}
 			color.Output = output
-		case themesDB[currThemeName].Info:
+		case "Info":
 			if isatty.IsTerminal(os.Stdout.Fd()) {
 				c.Print(ProgramName() + ": ")
 				c.Print(a...)
@@ -308,60 +253,60 @@ var (
 		}
 	}
 
-	// printf - same as print with a new line
+	// consolePrintf - same as print with a new line
-	printf = func(c *color.Color, f string, a ...interface{}) {
+	consolePrintf = func(tag string, c *color.Color, format string, a ...interface{}) {
 		mutex.Lock()
 		defer mutex.Unlock()
 
-		switch c {
+		switch tag {
-		case themesDB[currThemeName].Debug:
+		case "Debug":
 			output := color.Output
 			color.Output = stderrColoredOutput
 			if isatty.IsTerminal(os.Stderr.Fd()) {
 				c.Print(ProgramName() + ": <DEBUG> ")
-				c.Printf(f, a...)
+				c.Printf(format, a...)
 			} else {
 				fmt.Fprint(color.Output, ProgramName()+": <DEBUG> ")
-				fmt.Fprintf(color.Output, f, a...)
+				fmt.Fprintf(color.Output, format, a...)
 			}
 			color.Output = output
-		case themesDB[currThemeName].Fatal:
+		case "Fatal":
 			fallthrough
-		case themesDB[currThemeName].Error:
+		case "Error":
 			output := color.Output
 			color.Output = stderrColoredOutput
 			if isatty.IsTerminal(os.Stderr.Fd()) {
 				c.Print(ProgramName() + ": <ERROR> ")
-				c.Printf(f, a...)
+				c.Printf(format, a...)
 			} else {
 				fmt.Fprint(color.Output, ProgramName()+": <ERROR> ")
-				fmt.Fprintf(color.Output, f, a...)
+				fmt.Fprintf(color.Output, format, a...)
 			}
 			color.Output = output
-		case themesDB[currThemeName].Info:
+		case "Info":
 			if isatty.IsTerminal(os.Stdout.Fd()) {
 				c.Print(ProgramName() + ": ")
-				c.Printf(f, a...)
+				c.Printf(format, a...)
 			} else {
 				fmt.Fprint(color.Output, ProgramName()+": ")
-				fmt.Fprintf(color.Output, f, a...)
+				fmt.Fprintf(color.Output, format, a...)
 			}
 		default:
 			if isatty.IsTerminal(os.Stdout.Fd()) {
-				c.Printf(f, a...)
+				c.Printf(format, a...)
 			} else {
-				fmt.Fprintf(color.Output, f, a...)
+				fmt.Fprintf(color.Output, format, a...)
 			}
 		}
 	}
 
-	// println - same as print with a new line
+	// consolePrintln - same as print with a new line
-	println = func(c *color.Color, a ...interface{}) {
+	consolePrintln = func(tag string, c *color.Color, a ...interface{}) {
 		mutex.Lock()
 		defer mutex.Unlock()
 
-		switch c {
+		switch tag {
-		case themesDB[currThemeName].Debug:
+		case "Debug":
 			output := color.Output
 			color.Output = stderrColoredOutput
 			if isatty.IsTerminal(os.Stderr.Fd()) {
@@ -372,9 +317,9 @@ var (
 				fmt.Fprintln(color.Output, a...)
 			}
 			color.Output = output
-		case themesDB[currThemeName].Fatal:
+		case "Fatal":
 			fallthrough
-		case themesDB[currThemeName].Error:
+		case "Error":
 			output := color.Output
 			color.Output = stderrColoredOutput
 			if isatty.IsTerminal(os.Stderr.Fd()) {
@@ -385,7 +330,7 @@ var (
 				fmt.Fprintln(color.Output, a...)
 			}
 			color.Output = output
-		case themesDB[currThemeName].Info:
+		case "Info":
 			if isatty.IsTerminal(os.Stdout.Fd()) {
 				c.Print(ProgramName() + ": ")
 				c.Println(a...)
@@ -413,54 +358,17 @@ func Unlock() {
 	mutex.Unlock()
 }
 
-// SetTheme sets a color theme
+// SetCustomTheme sets a color theme
-func SetTheme(themeName string) *probe.Error {
+func SetCustomTheme(theme map[string]*color.Color) *probe.Error {
-	if !IsValidTheme(themeName) {
-		return probe.NewError(fmt.Errorf("Unsupported theme name [%s]", themeName))
-	}
-
 	mutex.Lock()
-
+	defer mutex.Unlock()
-	// Just another additional precaution to completely disable color.
+	// add new theme
-	// Color theme is also necessary, because it does other useful things like exit-on-fatal..
+	for k, v := range theme {
-	switch currThemeName {
+		Theme[k] = v
-	case "nocolor":
-		color.NoColor = true
-	default:
-		color.NoColor = false
 	}
-
-	currThemeName = themeName
-
-	mutex.Unlock()
-
 	return nil
 }
 
-// GetThemeName returns currently set theme name
-func GetThemeName() string {
-	return currThemeName
-}
-
-// GetDefaultThemeName returns the default theme
-func GetDefaultThemeName() string {
-	return "minimal"
-}
-
-// GetThemeNames returns currently supported list of  themes
-func GetThemeNames() (themeNames []string) {
-	for themeName := range themesDB {
-		themeNames = append(themeNames, themeName)
-	}
-	return themeNames
-}
-
-// IsValidTheme returns true if "themeName" is currently supported
-func IsValidTheme(themeName string) bool {
-	_, ok := themesDB[themeName]
-	return ok
-}
-
 // ProgramName - return the name of the executable program
 func ProgramName() string {
 	_, progName := filepath.Split(os.Args[0])

pkg/console/console_test.go

@@ -19,6 +19,7 @@ package console
 import (
 	"testing"
 
+	"github.com/minio/mc/internal/github.com/fatih/color"
 	. "github.com/minio/mc/internal/gopkg.in/check.v1"
 )
 
@@ -29,14 +30,8 @@ type MySuite struct{}
 var _ = Suite(&MySuite{})
 
 func (s *MySuite) TestSetTheme(c *C) {
-	err := SetTheme("nocolor")
+	err := SetCustomTheme(map[string]*color.Color{"unknown": new(color.Color)})
 	c.Assert(err, IsNil)
-	c.Assert(GetThemeName(), Equals, "nocolor")
+	_, ok := Theme["unknown"]
-	err = SetTheme("unknown")
+	c.Assert(ok, Equals, true)
-	c.Assert(err, Not(IsNil))
-	c.Assert(GetThemeName(), Equals, "nocolor")
-}
-
-func (s *MySuite) TestDefaultTheme(c *C) {
-	c.Assert(GetDefaultThemeName(), Equals, "minimal")
 }

pkg/console/themes.go

@@ -1,70 +0,0 @@
-/*
- * Minio Client (C) 2015 Minio, Inc.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package console
-
-import "github.com/minio/mc/internal/github.com/fatih/color"
-
-// MiniTheme - Minio's default color theme
-var MiniTheme = Theme{
-	Debug:     (color.New(color.FgWhite, color.Faint, color.Italic)),
-	Fatal:     (color.New(color.FgRed, color.Italic, color.Bold)),
-	Error:     (color.New(color.FgYellow, color.Italic)),
-	Info:      (color.New(color.FgGreen, color.Bold)),
-	File:      (color.New(color.FgWhite)),
-	Dir:       (color.New(color.FgCyan, color.Bold)),
-	Command:   (color.New(color.FgWhite, color.Bold)),
-	SessionID: (color.New(color.FgYellow, color.Bold)),
-	Size:      (color.New(color.FgYellow)),
-	Time:      (color.New(color.FgGreen)),
-	Bar:       (color.New(color.FgGreen, color.Bold)),
-	PrintC:    (color.New(color.FgGreen, color.Bold)),
-	Print:     (color.New()),
-}
-
-// WhiteTheme - All white color theme
-var WhiteTheme = Theme{
-	Debug:     (color.New(color.FgWhite, color.Faint, color.Italic)),
-	Fatal:     (color.New(color.FgWhite, color.Bold, color.Italic)),
-	Error:     (color.New(color.FgWhite, color.Bold, color.Italic)),
-	Info:      (color.New(color.FgWhite, color.Bold)),
-	File:      (color.New(color.FgWhite, color.Bold)),
-	Dir:       (color.New(color.FgWhite, color.Bold)),
-	Command:   (color.New(color.FgWhite, color.Bold)),
-	SessionID: (color.New(color.FgWhite, color.Bold)),
-	Size:      (color.New(color.FgWhite, color.Bold)),
-	Time:      (color.New(color.FgWhite, color.Bold)),
-	Bar:       (color.New(color.FgWhite, color.Bold)),
-	PrintC:    (color.New(color.FgWhite, color.Bold)),
-	Print:     (color.New()),
-}
-
-// NoColorTheme - Disables color theme
-var NoColorTheme = Theme{
-	Debug:     new(color.Color),
-	Fatal:     new(color.Color),
-	Error:     new(color.Color),
-	Info:      new(color.Color),
-	File:      new(color.Color),
-	Dir:       new(color.Color),
-	Command:   new(color.Color),
-	SessionID: new(color.Color),
-	Size:      new(color.Color),
-	Time:      new(color.Color),
-	Bar:       new(color.Color),
-	PrintC:    new(color.Color),
-	Print:     new(color.Color),
-}

session-json.go

@@ -18,6 +18,7 @@ package main
 
 import (
 	"encoding/json"
+	"fmt"
 	"strings"
 
 	"github.com/minio/mc/pkg/console"
@@ -33,9 +34,9 @@ type SessionJSONMessage struct {
 
 func (s sessionV2) String() string {
 	if !globalJSONFlag {
-		message := console.SessionID("%s -> ", s.SessionID)
+		message := console.Colorize("SessionID", fmt.Sprintf("%s -> ", s.SessionID))
-		message = message + console.Time("[%s]", s.Header.When.Local().Format(printDate))
+		message = message + console.Colorize("Time", fmt.Sprintf("[%s]", s.Header.When.Local().Format(printDate)))
-		message = message + console.Command(" %s %s", s.Header.CommandType, strings.Join(s.Header.CommandArgs, " "))
+		message = message + console.Colorize("Command", fmt.Sprintf(" %s %s", s.Header.CommandType, strings.Join(s.Header.CommandArgs, " ")))
 		return message + "\n"
 	}
 	sessionMesage := SessionJSONMessage{

session-v1.go

@@ -17,6 +17,7 @@
 package main
 
 import (
+	"fmt"
 	"os"
 	"path/filepath"
 	"regexp"
@@ -41,9 +42,9 @@ type sessionV1 struct {
 }
 
 func (s sessionV1) String() string {
-	message := console.Time("[%s] ", s.Started.Local().Format(printDate))
+	message := console.Colorize("Time", fmt.Sprintf("[%s] ", s.Started.Local().Format(printDate)))
-	message = message + console.SessionID("%s", s.SessionID)
+	message = message + console.Colorize("SessionID", fmt.Sprintf("%s", s.SessionID))
-	message = message + console.Command(" [%s %s]", s.CommandType, strings.Join(s.URLs, " "))
+	message = message + console.Colorize("Command", fmt.Sprintf(" [%s %s]", s.CommandType, strings.Join(s.URLs, " ")))
 	return message
 }
 

typed-errors.go

@@ -122,14 +122,6 @@ func (e errInvalidTarget) Error() string {
 	return "Invalid target " + e.URL
 }
 
-type errInvalidTheme struct {
-	Theme string
-}
-
-func (e errInvalidTheme) Error() string {
-	return "Theme " + e.Theme + " is not supported."
-}
-
 type errTargetIsNotDir errInvalidURL
 
 func (e errTargetIsNotDir) Error() string {