Files
weave-scope/vendor/github.com/jessevdk/go-flags/examples/main.go
Roberto Bruggemann 710d665c41 Upgrade k8s.io/client-go to kubernetes-1.9.1
Upgraded from 99c19923, branch release-3.0.

This required fetching or upgrading the following:
* k8s.io/api to kubernetes-1.9.1
* k8s.io/apimachinery to kubernetes-1.9.1
* github.com/juju/ratelimit to 1.0.1
* github.com/spf13/pflag to 4c012f6d

Also, update Scope's imports/function calls to be compatible with the new client.
2018-01-30 10:14:42 +00:00

80 lines
1.7 KiB
Go

package main
import (
"errors"
"fmt"
"github.com/jessevdk/go-flags"
"os"
"strconv"
"strings"
)
type EditorOptions struct {
Input flags.Filename `short:"i" long:"input" description:"Input file" default:"-"`
Output flags.Filename `short:"o" long:"output" description:"Output file" default:"-"`
}
type Point struct {
X, Y int
}
func (p *Point) UnmarshalFlag(value string) error {
parts := strings.Split(value, ",")
if len(parts) != 2 {
return errors.New("expected two numbers separated by a ,")
}
x, err := strconv.ParseInt(parts[0], 10, 32)
if err != nil {
return err
}
y, err := strconv.ParseInt(parts[1], 10, 32)
if err != nil {
return err
}
p.X = int(x)
p.Y = int(y)
return nil
}
func (p Point) MarshalFlag() (string, error) {
return fmt.Sprintf("%d,%d", p.X, p.Y), nil
}
type Options struct {
// Example of verbosity with level
Verbose []bool `short:"v" long:"verbose" description:"Verbose output"`
// Example of optional value
User string `short:"u" long:"user" description:"User name" optional:"yes" optional-value:"pancake"`
// Example of map with multiple default values
Users map[string]string `long:"users" description:"User e-mail map" default:"system:system@example.org" default:"admin:admin@example.org"`
// Example of option group
Editor EditorOptions `group:"Editor Options"`
// Example of custom type Marshal/Unmarshal
Point Point `long:"point" description:"A x,y point" default:"1,2"`
}
var options Options
var parser = flags.NewParser(&options, flags.Default)
func main() {
if _, err := parser.Parse(); err != nil {
if flagsErr, ok := err.(*flags.Error); ok && flagsErr.Type == flags.ErrHelp {
os.Exit(0)
} else {
os.Exit(1)
}
}
}