caddy/middleware/commands.go

package middleware

import (
	"errors"

	"github.com/flynn/go-shlex"
)

// SplitCommandAndArgs takes a command string and parses it
// shell-style into the command and its separate arguments.
func SplitCommandAndArgs(command string) (cmd string, args []string, err error) {
	parts, err := shlex.Split(command)
	if err != nil {
		err = errors.New("error parsing command: " + err.Error())
		return
	} else if len(parts) == 0 {
		err = errors.New("no command contained in '" + command + "'")
		return
	}

	cmd = parts[0]
	if len(parts) > 1 {
		args = parts[1:]
	}

	return
}