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main.go
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main.go
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package main
import (
"encoding/json"
"fmt"
"os"
"github.com/akeylesslabs/cli"
)
const version = "v1.0.0"
var app = &cli.Command{
Name: os.Args[0],
Desc: "Golang package manager",
Text: `gogo is a new golang package manager
very very good`,
Argv: func() interface{} { return new(gogoT) },
Fn: gogo,
}
type gogoT struct {
cli.Helper
Version bool `cli:"v,version" usage:"display version"`
List bool `cli:"l,list" usage:"list all sub commands or not" dft:"false"`
}
func gogo(ctx *cli.Context) error {
argv := ctx.Argv().(*gogoT)
if argv.Version {
ctx.String(version + "\n")
return nil
}
if argv.List {
ctx.String(ctx.Command().ChildrenDescriptions(" ", " => "))
return nil
}
ctx.String("try `%s --help for more information'\n", ctx.Path())
return nil
}
func jsonIndent(i interface{}) string {
data, err := json.MarshalIndent(i, "", " ")
if err != nil {
return ""
}
return string(data) + "\n"
}
func main() {
cli.SetUsageStyle(cli.ManualStyle)
//NOTE: You can set any writer implements io.Writer
// default writer is os.Stdout
if err := app.RunWith(os.Args[1:], os.Stderr, nil); err != nil {
fmt.Printf("%v\n", err)
}
}