projects/sievemgr

view cmd/sievemgr/command.go @ 3:3cd182bff992

Show warning messages in put output
author Guido Berhoerster <guido+sievemgr@berhoerster.name>
date Tue Oct 27 17:54:58 2020 +0100 (13 months ago)
parents b00673734e58
children
line source
1 // Copyright (C) 2020 Guido Berhoerster <guido+sievemgr@berhoerster.name>
2 //
3 // Permission is hereby granted, free of charge, to any person obtaining
4 // a copy of this software and associated documentation files (the
5 // "Software"), to deal in the Software without restriction, including
6 // without limitation the rights to use, copy, modify, merge, publish,
7 // distribute, sublicense, and/or sell copies of the Software, and to
8 // permit persons to whom the Software is furnished to do so, subject to
9 // the following conditions:
10 //
11 // The above copyright notice and this permission notice shall be included
12 // in all copies or substantial portions of the Software.
13 //
14 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
15 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
16 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
17 // IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
18 // CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
19 // TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
20 // SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
22 package main
24 import (
25 "flag"
26 "fmt"
27 "strings"
28 )
30 type command struct {
31 UsageLine string
32 Flag flag.FlagSet
33 Run func(cmd *command, args []string) error
34 }
36 func (c *command) Usage() {
37 fmt.Fprintf(flag.CommandLine.Output(), "usage:\n %s %s\n",
38 flag.CommandLine.Name(), c.UsageLine)
39 fmt.Fprintln(flag.CommandLine.Output(), "options:")
40 c.Flag.PrintDefaults()
41 }
43 func (c *command) Name() string {
44 return strings.SplitN(strings.Trim(c.UsageLine, " "), " ", 2)[0]
45 }