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JMS #14: More help cleanup

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This commit is contained in:
Jeremy Saenz 2013-07-19 15:23:42 -07:00
parent 63b9f2823a
commit 580cc011fd
2 changed files with 18 additions and 20 deletions
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4
app.go
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@ -23,7 +23,7 @@ func NewApp() *App {
Name: os.Args[0], Name: os.Args[0],
Usage: "A new cli application", Usage: "A new cli application",
Version: "0.0.0", Version: "0.0.0",
Action: ShowHelp, Action: helpCommand.Action,
} }
} }
@ -33,7 +33,7 @@ func (a *App) Run(arguments []string) {
set.Parse(arguments[1:]) set.Parse(arguments[1:])
// append help to commands // append help to commands
a.Commands = append(a.Commands, HelpCommand) a.Commands = append(a.Commands, helpCommand)
context := NewContext(a, set, set) context := NewContext(a, set, set)
args := context.Args() args := context.Args()

34
help.go
View File

@ -4,33 +4,31 @@ import "os"
import "text/tabwriter" import "text/tabwriter"
import "text/template" import "text/template"
var HelpCommand = Command{ var helpCommand = Command{
Name: "help", Name: "help",
ShortName: "h", ShortName: "h",
Usage: "Shows a list of commands or help for one command", Usage: "Shows a list of commands or help for one command",
Action: ShowHelp, Action: func(c *Context) {
} helpTemplate := `NAME:
{{.Name}} - {{.Usage}}
func ShowHelp(c *Context) {
helpTemplate := `NAME:
{{.Name}} - {{.Usage}}
USAGE: USAGE:
{{.Name}} [global options] command [command options] [arguments...] {{.Name}} [global options] command [command options] [arguments...]
VERSION: VERSION:
{{.Version}} {{.Version}}
COMMANDS: COMMANDS:
{{range .Commands}}{{.Name}}{{with .ShortName}}, {{.}}{{end}}{{ "\t" }}{{.Usage}} {{range .Commands}}{{.Name}}{{with .ShortName}}, {{.}}{{end}}{{ "\t" }}{{.Usage}}
{{end}} {{end}}
GLOBAL OPTIONS GLOBAL OPTIONS:
{{range .Flags}}{{.}} {{range .Flags}}{{.}}
{{end}} {{end}}
` `
w := tabwriter.NewWriter(os.Stdout, 0, 8, 1, '\t', 0) w := tabwriter.NewWriter(os.Stdout, 0, 8, 1, '\t', 0)
t := template.Must(template.New("help").Parse(helpTemplate)) t := template.Must(template.New("help").Parse(helpTemplate))
t.Execute(w, c.App) t.Execute(w, c.App)
w.Flush() w.Flush()
},
} }