Rename Stdout -> Writer

app.go

@@ -40,8 +40,8 @@ type App struct {
 	Author string
 	// Author e-mail
 	Email string
-	// Stdout writer to write output to
-	Stdout io.Writer
+	// Writer writer to write output to
+	Writer io.Writer
 }
 
 // Tries to find out when this binary was compiled.
@@ -65,7 +65,7 @@ func NewApp() *App {
 		Compiled:     compileTime(),
 		Author:       "Author",
 		Email:        "unknown@email",
-		Stdout:       os.Stdout,
+		Writer:       os.Stdout,
 	}
 }
 
@@ -77,7 +77,7 @@ func (a *App) Run(arguments []string) error {
 		}()
 
 		HelpPrinter = func(templ string, data interface{}) {
-			w := tabwriter.NewWriter(a.Stdout, 0, 8, 1, '\t', 0)
+			w := tabwriter.NewWriter(a.Writer, 0, 8, 1, '\t', 0)
 			t := template.Must(template.New("help").Parse(templ))
 			err := t.Execute(w, data)
 			if err != nil {
@@ -105,18 +105,18 @@ func (a *App) Run(arguments []string) error {
 	err := set.Parse(arguments[1:])
 	nerr := normalizeFlags(a.Flags, set)
 	if nerr != nil {
-		io.WriteString(a.Stdout, fmt.Sprintln(nerr))
+		io.WriteString(a.Writer, fmt.Sprintln(nerr))
 		context := NewContext(a, set, set)
 		ShowAppHelp(context)
-		io.WriteString(a.Stdout, fmt.Sprintln(""))
+		io.WriteString(a.Writer, fmt.Sprintln(""))
 		return nerr
 	}
 	context := NewContext(a, set, set)
 
 	if err != nil {
-		io.WriteString(a.Stdout, fmt.Sprintf("Incorrect Usage.\n\n"))
+		io.WriteString(a.Writer, fmt.Sprintf("Incorrect Usage.\n\n"))
 		ShowAppHelp(context)
-		io.WriteString(a.Stdout, fmt.Sprintln(""))
+		io.WriteString(a.Writer, fmt.Sprintln(""))
 		return err
 	}
 
@@ -176,18 +176,18 @@ func (a *App) RunAsSubcommand(ctx *Context) error {
 	context := NewContext(a, set, set)
 
 	if nerr != nil {
-		io.WriteString(a.Stdout, fmt.Sprintln(nerr))
+		io.WriteString(a.Writer, fmt.Sprintln(nerr))
 		if len(a.Commands) > 0 {
 			ShowSubcommandHelp(context)
 		} else {
 			ShowCommandHelp(ctx, context.Args().First())
 		}
-		io.WriteString(a.Stdout, fmt.Sprintln(""))
+		io.WriteString(a.Writer, fmt.Sprintln(""))
 		return nerr
 	}
 
 	if err != nil {
-		io.WriteString(a.Stdout, fmt.Sprintf("Incorrect Usage.\n\n"))
+		io.WriteString(a.Writer, fmt.Sprintf("Incorrect Usage.\n\n"))
 		ShowSubcommandHelp(context)
 		return err
 	}

app_test.go

@@ -265,7 +265,7 @@ func TestApp_ParseSliceFlags(t *testing.T) {
 func TestApp_DefaultStdout(t *testing.T) {
 	app := cli.NewApp()
 
-	if app.Stdout != os.Stdout {
+	if app.Writer != os.Stdout {
 		t.Error("Default output writer not set.")
 	}
 }
@@ -293,7 +293,7 @@ func TestApp_SetStdout(t *testing.T) {
 
 	app := cli.NewApp()
 	app.Name = "test"
-	app.Stdout = mockWriter
+	app.Writer = mockWriter
 
 	err := app.Run([]string{"help"})
 

command.go

@@ -71,18 +71,18 @@ func (c Command) Run(ctx *Context) error {
 	}
 
 	if err != nil {
-		io.WriteString(ctx.App.Stdout, fmt.Sprintf("Incorrect Usage.\n\n"))
+		io.WriteString(ctx.App.Writer, fmt.Sprintf("Incorrect Usage.\n\n"))
 		ShowCommandHelp(ctx, c.Name)
-		io.WriteString(ctx.App.Stdout, fmt.Sprintln(""))
+		io.WriteString(ctx.App.Writer, fmt.Sprintln(""))
 		return err
 	}
 
 	nerr := normalizeFlags(c.Flags, set)
 	if nerr != nil {
-		io.WriteString(ctx.App.Stdout, fmt.Sprintln(nerr))
-		io.WriteString(ctx.App.Stdout, fmt.Sprintln(""))
+		io.WriteString(ctx.App.Writer, fmt.Sprintln(nerr))
+		io.WriteString(ctx.App.Writer, fmt.Sprintln(""))
 		ShowCommandHelp(ctx, c.Name)
-		io.WriteString(ctx.App.Stdout, fmt.Sprintln(""))
+		io.WriteString(ctx.App.Writer, fmt.Sprintln(""))
 		return nerr
 	}
 	context := NewContext(ctx.App, set, ctx.globalSet)

help.go

@@ -99,9 +99,9 @@ func ShowAppHelp(c *Context) {
 // Prints the list of subcommands as the default app completion method
 func DefaultAppComplete(c *Context) {
 	for _, command := range c.App.Commands {
-		io.WriteString(c.App.Stdout, fmt.Sprintln(command.Name))
+		io.WriteString(c.App.Writer, fmt.Sprintln(command.Name))
 		if command.ShortName != "" {
-			io.WriteString(c.App.Stdout, fmt.Sprintln(command.ShortName))
+			io.WriteString(c.App.Writer, fmt.Sprintln(command.ShortName))
 		}
 	}
 }
@@ -118,7 +118,7 @@ func ShowCommandHelp(c *Context, command string) {
 	if c.App.CommandNotFound != nil {
 		c.App.CommandNotFound(c, command)
 	} else {
-		io.WriteString(c.App.Stdout, fmt.Sprintf("No help topic for '%v'\n", command))
+		io.WriteString(c.App.Writer, fmt.Sprintf("No help topic for '%v'\n", command))
 	}
 }
 
@@ -129,7 +129,7 @@ func ShowSubcommandHelp(c *Context) {
 
 // Prints the version number of the App
 func ShowVersion(c *Context) {
-	io.WriteString(c.App.Stdout, fmt.Sprintf("%v version %v\n", c.App.Name, c.App.Version))
+	io.WriteString(c.App.Writer, fmt.Sprintf("%v version %v\n", c.App.Name, c.App.Version))
 }
 
 // Prints the lists of commands within a given context