Merge pull request #192 from codegangsta/add-multi-author-support

Add multi author support

app.go

@@ -43,9 +43,11 @@ type App struct {
 	CommandNotFound func(context *Context, command string)
 	// Compilation date
 	Compiled time.Time
-	// Author
+	// List of all authors who contributed
+	Authors []Author
+	// Name of Author (Note: Use App.Authors, this is deprecated)
 	Author string
-	// Author e-mail
+	// Email of Author (Note: Use App.Authors, this is deprecated)
 	Email string
 	// Writer writer to write output to
 	Writer io.Writer
@@ -70,14 +72,19 @@ func NewApp() *App {
 		BashComplete: DefaultAppComplete,
 		Action:       helpCommand.Action,
 		Compiled:     compileTime(),
-		Author:       "Author",
-		Email:        "unknown@email",
+		Author:       "Dr. James",
+		Email:        "who@gmail.com",
+		Authors:      []Author{{"Jim", "jim@corporate.com"}, {"Hank", "hank@indiepalace.com"}},
 		Writer:       os.Stdout,
 	}
 }
 
 // Entry point to the cli app. Parses the arguments slice and routes to the proper flag/args combination
 func (a *App) Run(arguments []string) (err error) {
+	if a.Author != "" && a.Author != "" {
+		a.Authors = append(a.Authors, Author{a.Author, a.Email})
+	}
+
 	if HelpPrinter == nil {
 		defer func() {
 			HelpPrinter = nil
@@ -294,3 +301,19 @@ func (a *App) appendFlag(flag Flag) {
 		a.Flags = append(a.Flags, flag)
 	}
 }
+
+// Author represents someone who has contributed to a cli project.
+type Author struct {
+	Name  string // The Authors name
+	Email string // The Authors email
+}
+
+// String makes Author comply to the Stringer interface, to allow an easy print in the templating process
+func (a Author) String() string {
+	e := ""
+	if a.Email != "" {
+		e = "<" + a.Email + "> "
+	}
+
+	return fmt.Sprintf("%v %v", a.Name, e)
+}

app_test.go

@@ -21,6 +21,9 @@ func ExampleApp() {
 	app.Action = func(c *cli.Context) {
 		fmt.Printf("Hello %v\n", c.String("name"))
 	}
+	app.Author = "Harrison"
+	app.Email = "harrison@lolwut.com"
+	app.Authors = []cli.Author{{"Oliver Allen", "oliver@toyshop.com"}}
 	app.Run(os.Args)
 	// Output:
 	// Hello Jeremy

help.go

@@ -12,11 +12,10 @@ USAGE:
    {{.Name}} {{if .Flags}}[global options] {{end}}command{{if .Flags}} [command options]{{end}} [arguments...]
 
 VERSION:
-   {{.Version}}{{if or .Author .Email}}
+   {{.Version}}
 
-AUTHOR:{{if .Author}}
-  {{.Author}}{{if .Email}} - <{{.Email}}>{{end}}{{else}}
-  {{.Email}}{{end}}{{end}}
+AUTHOR(S): 
+	{{range .Authors}}{{ . }} {{end}}
 
 COMMANDS:
    {{range .Commands}}{{.Name}}{{with .ShortName}}, {{.}}{{end}}{{ "\t" }}{{.Usage}}