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Add support for specifying an authorization identity on the command line
author Guido Berhoerster <guido+sievemgr@berhoerster.name>
date Wed, 17 Feb 2021 07:50:55 +0100
parents 44c07eb8ef08
children
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rev   line source
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0cd5a454dfb4 Add README file
Guido Berhoerster <guido+sievemgr@berhoerster.name>
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1 // Copyright (C) 2020 Guido Berhoerster <guido+sievemgr@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 //go:generate go run gendocstr.go . code.guido-berhoerster.org/go/sievemgr docText docstr.go
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23
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24 package main
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25
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26 import (
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27 "errors"
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28 "flag"
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29 "fmt"
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30 "os"
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31
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32 "go.guido-berhoerster.org/sievemgr/cmd/sievemgr/internal/config"
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33 )
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34
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35 const (
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36 exitSuccess = iota
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37 exitFailure
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38 exitUsage
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39 )
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40
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41 type usageError string
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42
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43 func (e usageError) Error() string {
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44 return string(e)
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45 }
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46
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47 // command-line flags
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48 var (
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49 confFilename string
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50 acctName string
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51 authzID string
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52 )
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53
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54 var conf config.Configuration
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55
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56 func init() {
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57 var err error
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58 confFilename, err = config.DefaultFilename()
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59 if err != nil {
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60 fmt.Fprintln(flag.CommandLine.Output(), err)
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61 os.Exit(exitFailure)
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62 }
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63 }
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64
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65 var cmds = []*command{
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66 cmdList,
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67 cmdPut,
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68 cmdGet,
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69 cmdActivate,
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70 cmdDeactivate,
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71 cmdDelete,
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72 cmdInfo,
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73 cmdCheck,
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74 cmdCheckSpace,
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75 cmdRename,
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76 cmdEdit,
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77 cmdMan,
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78 }
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79
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80 func usage() {
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81 fmt.Fprintf(flag.CommandLine.Output(),
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82 "usage:\n %s [options] [subcommand [options] [arguments]]\n",
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83 flag.CommandLine.Name())
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84 fmt.Fprintln(flag.CommandLine.Output(), "subcommands:")
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85 for _, cmd := range cmds {
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86 fmt.Fprintf(flag.CommandLine.Output(), " %s\n", cmd.Name())
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87 }
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88 fmt.Fprintln(flag.CommandLine.Output(), "global options:")
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89 flag.PrintDefaults()
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90 }
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91
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92 func main() {
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93 flag.Usage = usage
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94 flag.StringVar(&confFilename, "f", confFilename,
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95 "Set the name of the configuration file")
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96 flag.Parse()
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97 if flag.NArg() == 0 {
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98 fmt.Fprintln(flag.CommandLine.Output(), "missing subcommand")
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99 usage()
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100 os.Exit(exitUsage)
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101 }
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102
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103 if err := config.ParseFile(confFilename, &conf); err != nil {
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104 fmt.Fprintln(flag.CommandLine.Output(), err)
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105 os.Exit(exitFailure)
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106 }
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107
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108 name := flag.Arg(0)
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109 var cmd *command
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110 for _, c := range cmds {
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111 if c.Name() == name {
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112 cmd = c
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113 break
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114 }
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115 }
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116 if cmd == nil {
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117 fmt.Fprintf(flag.CommandLine.Output(),
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118 "unknown subcommand %q\n", name)
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119 usage()
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120 os.Exit(exitUsage)
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121 }
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122
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123 cmd.Flag.Init(cmd.Name(), flag.ExitOnError)
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124 cmd.Flag.Usage = cmd.Usage
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125 args := flag.Args()
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126 if err := cmd.Flag.Parse(args[1:]); err != nil {
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127 fmt.Fprintln(flag.CommandLine.Output(), err)
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128 os.Exit(exitFailure)
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129 }
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130
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131 if err := cmd.Run(cmd, cmd.Flag.Args()); err != nil {
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132 fmt.Fprintln(flag.CommandLine.Output(), err)
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133
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134 var uerr usageError
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135 if errors.As(err, &uerr) {
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136 cmd.Usage()
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137 os.Exit(exitUsage)
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138 }
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139
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140 os.Exit(exitFailure)
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141 }
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142 }