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annotate cmd/sievemgr/command.go @ 0:6369453d47a3

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Initial revision
author Guido Berhoerster <guido+managesieve@berhoerster.name>
date Thu, 15 Oct 2020 09:11:05 +0200
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1 // Copyright (C) 2020 Guido Berhoerster <guido+managesieve@berhoerster.name>
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2 //
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3 // Permission is hereby granted, free of charge, to any person obtaining
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4 // a copy of this software and associated documentation files (the
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5 // "Software"), to deal in the Software without restriction, including
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6 // without limitation the rights to use, copy, modify, merge, publish,
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7 // distribute, sublicense, and/or sell copies of the Software, and to
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8 // permit persons to whom the Software is furnished to do so, subject to
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9 // the following conditions:
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10 //
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11 // The above copyright notice and this permission notice shall be included
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12 // in all copies or substantial portions of the Software.
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13 //
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14 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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15 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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16 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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17 // IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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18 // CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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19 // TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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20 // SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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21
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22 package main
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23
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24 import (
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25 "flag"
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26 "fmt"
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27 "strings"
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28 )
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29
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30 type command struct {
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31 UsageLine string
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32 Flag flag.FlagSet
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33 Run func(cmd *command, args []string) error
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34 }
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35
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36 func (c *command) Usage() {
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37 fmt.Fprintf(flag.CommandLine.Output(), "usage:\n %s %s\n",
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38 flag.CommandLine.Name(), c.UsageLine)
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39 fmt.Fprintln(flag.CommandLine.Output(), "options:")
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40 c.Flag.PrintDefaults()
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41 }
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42
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43 func (c *command) Name() string {
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44 return strings.SplitN(strings.Trim(c.UsageLine, " "), " ", 2)[0]
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45 }