root / kamaki / cli / argument.py @ 9986e569
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1 | b9331a9f | Stavros Sachtouris | # Copyright 2012 GRNET S.A. All rights reserved.
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2 | b9331a9f | Stavros Sachtouris | #
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3 | b9331a9f | Stavros Sachtouris | # Redistribution and use in source and binary forms, with or
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4 | b9331a9f | Stavros Sachtouris | # without modification, are permitted provided that the following
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5 | b9331a9f | Stavros Sachtouris | # conditions are met:
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6 | b9331a9f | Stavros Sachtouris | #
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7 | b9331a9f | Stavros Sachtouris | # 1. Redistributions of source code must retain the above
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8 | b9331a9f | Stavros Sachtouris | # copyright notice, this list of conditions and the following
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9 | b9331a9f | Stavros Sachtouris | # disclaimer.
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10 | b9331a9f | Stavros Sachtouris | #
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11 | b9331a9f | Stavros Sachtouris | # 2. Redistributions in binary form must reproduce the above
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12 | b9331a9f | Stavros Sachtouris | # copyright notice, this list of conditions and the following
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13 | b9331a9f | Stavros Sachtouris | # disclaimer in the documentation and/or other materials
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14 | b9331a9f | Stavros Sachtouris | # provided with the distribution.
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15 | b9331a9f | Stavros Sachtouris | #
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16 | b9331a9f | Stavros Sachtouris | # THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
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17 | b9331a9f | Stavros Sachtouris | # OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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18 | b9331a9f | Stavros Sachtouris | # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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19 | b9331a9f | Stavros Sachtouris | # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
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20 | b9331a9f | Stavros Sachtouris | # CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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21 | b9331a9f | Stavros Sachtouris | # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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22 | b9331a9f | Stavros Sachtouris | # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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23 | b9331a9f | Stavros Sachtouris | # USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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24 | b9331a9f | Stavros Sachtouris | # AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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25 | b9331a9f | Stavros Sachtouris | # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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26 | b9331a9f | Stavros Sachtouris | # ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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27 | b9331a9f | Stavros Sachtouris | # POSSIBILITY OF SUCH DAMAGE.
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28 | b9331a9f | Stavros Sachtouris | #
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29 | b9331a9f | Stavros Sachtouris | # The views and conclusions contained in the software and
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30 | b9331a9f | Stavros Sachtouris | # documentation are those of the authors and should not be
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31 | b9331a9f | Stavros Sachtouris | # interpreted as representing official policies, either expressed
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32 | b9331a9f | Stavros Sachtouris | # or implied, of GRNET S.A.
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33 | 9bdc89da | Stavros Sachtouris | |
34 | c270fe96 | Stavros Sachtouris | from kamaki.cli.config import Config |
35 | b696ed2c | Stavros Sachtouris | from kamaki.cli.errors import CLISyntaxError, raiseCLIError |
36 | e0f40c94 | Stavros Sachtouris | from kamaki.cli.utils import split_input |
37 | 9986e569 | Stavros Sachtouris | from kamaki.logger import get_logger |
38 | 04d01cd4 | Stavros Sachtouris | from datetime import datetime as dtm |
39 | ea4a21b8 | Stavros Sachtouris | from time import mktime |
40 | db8d1766 | Stavros Sachtouris | |
41 | e0f40c94 | Stavros Sachtouris | |
42 | af6de846 | Stavros Sachtouris | from argparse import ArgumentParser, ArgumentError |
43 | 2703cceb | Stavros Sachtouris | from argparse import RawDescriptionHelpFormatter |
44 | dfee2caf | Stavros Sachtouris | |
45 | fd1f1d96 | Stavros Sachtouris | try:
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46 | 365280ca | Stavros Sachtouris | from progress.bar import ShadyBar as KamakiProgressBar |
47 | fd1f1d96 | Stavros Sachtouris | except ImportError: |
48 | ca092af4 | Stavros Sachtouris | try:
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49 | ca092af4 | Stavros Sachtouris | from progress.bar import Bar as KamakiProgressBar |
50 | ca092af4 | Stavros Sachtouris | except ImportError: |
51 | ca092af4 | Stavros Sachtouris | pass
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52 | fd1f1d96 | Stavros Sachtouris | # progress not installed - pls, pip install progress
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53 | fd1f1d96 | Stavros Sachtouris | pass
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54 | fd1f1d96 | Stavros Sachtouris | |
55 | 9986e569 | Stavros Sachtouris | log = get_logger('kamaki.cli')
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56 | db8d1766 | Stavros Sachtouris | |
57 | fd5db045 | Stavros Sachtouris | |
58 | dfee2caf | Stavros Sachtouris | class Argument(object): |
59 | edb7fc1a | Stavros Sachtouris | """An argument that can be parsed from command line or otherwise.
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60 | edb7fc1a | Stavros Sachtouris | This is the general Argument class. It is suggested to extent this
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61 | edb7fc1a | Stavros Sachtouris | class into more specific argument types.
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62 | edb7fc1a | Stavros Sachtouris | """
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63 | dfee2caf | Stavros Sachtouris | |
64 | dfee2caf | Stavros Sachtouris | def __init__(self, arity, help=None, parsed_name=None, default=None): |
65 | 606fe15f | Stavros Sachtouris | self.arity = int(arity) |
66 | 606fe15f | Stavros Sachtouris | |
67 | 06eccea2 | Stavros Sachtouris | if help:
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68 | dfee2caf | Stavros Sachtouris | self.help = help
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69 | 06eccea2 | Stavros Sachtouris | if parsed_name:
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70 | dfee2caf | Stavros Sachtouris | self.parsed_name = parsed_name
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71 | d00fd070 | Stavros Sachtouris | self.default = default
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72 | dfee2caf | Stavros Sachtouris | |
73 | fd5db045 | Stavros Sachtouris | @property
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74 | dfee2caf | Stavros Sachtouris | def parsed_name(self): |
75 | edb7fc1a | Stavros Sachtouris | """the string which will be recognised by the parser as an instance
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76 | edb7fc1a | Stavros Sachtouris | of this argument
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77 | edb7fc1a | Stavros Sachtouris | """
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78 | dfee2caf | Stavros Sachtouris | return getattr(self, '_parsed_name', None) |
79 | fd5db045 | Stavros Sachtouris | |
80 | dfee2caf | Stavros Sachtouris | @parsed_name.setter
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81 | dfee2caf | Stavros Sachtouris | def parsed_name(self, newname): |
82 | dfee2caf | Stavros Sachtouris | self._parsed_name = getattr(self, '_parsed_name', []) |
83 | dfee2caf | Stavros Sachtouris | if isinstance(newname, list) or isinstance(newname, tuple): |
84 | dfee2caf | Stavros Sachtouris | self._parsed_name += list(newname) |
85 | dfee2caf | Stavros Sachtouris | else:
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86 | a517ff50 | Stavros Sachtouris | self._parsed_name.append('%s' % newname) |
87 | dfee2caf | Stavros Sachtouris | |
88 | fd5db045 | Stavros Sachtouris | @property
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89 | dfee2caf | Stavros Sachtouris | def help(self): |
90 | edb7fc1a | Stavros Sachtouris | """a user friendly help message"""
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91 | dfee2caf | Stavros Sachtouris | return getattr(self, '_help', None) |
92 | fd5db045 | Stavros Sachtouris | |
93 | dfee2caf | Stavros Sachtouris | @help.setter
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94 | dfee2caf | Stavros Sachtouris | def help(self, newhelp): |
95 | a517ff50 | Stavros Sachtouris | self._help = '%s' % newhelp |
96 | dfee2caf | Stavros Sachtouris | |
97 | fd5db045 | Stavros Sachtouris | @property
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98 | dfee2caf | Stavros Sachtouris | def arity(self): |
99 | edb7fc1a | Stavros Sachtouris | """negative for repeating, 0 for flag, 1 or more for values"""
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100 | dfee2caf | Stavros Sachtouris | return getattr(self, '_arity', None) |
101 | fd5db045 | Stavros Sachtouris | |
102 | dfee2caf | Stavros Sachtouris | @arity.setter
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103 | dfee2caf | Stavros Sachtouris | def arity(self, newarity): |
104 | dfee2caf | Stavros Sachtouris | newarity = int(newarity)
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105 | dfee2caf | Stavros Sachtouris | self._arity = newarity
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106 | dfee2caf | Stavros Sachtouris | |
107 | fd5db045 | Stavros Sachtouris | @property
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108 | dfee2caf | Stavros Sachtouris | def default(self): |
109 | edb7fc1a | Stavros Sachtouris | """the value of this argument when not set"""
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110 | dfee2caf | Stavros Sachtouris | if not hasattr(self, '_default'): |
111 | dfee2caf | Stavros Sachtouris | self._default = False if self.arity == 0 else None |
112 | dfee2caf | Stavros Sachtouris | return self._default |
113 | fd5db045 | Stavros Sachtouris | |
114 | dfee2caf | Stavros Sachtouris | @default.setter
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115 | dfee2caf | Stavros Sachtouris | def default(self, newdefault): |
116 | dfee2caf | Stavros Sachtouris | self._default = newdefault
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117 | dfee2caf | Stavros Sachtouris | |
118 | fd5db045 | Stavros Sachtouris | @property
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119 | dfee2caf | Stavros Sachtouris | def value(self): |
120 | edb7fc1a | Stavros Sachtouris | """the value of the argument"""
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121 | dfee2caf | Stavros Sachtouris | return getattr(self, '_value', self.default) |
122 | fd5db045 | Stavros Sachtouris | |
123 | dfee2caf | Stavros Sachtouris | @value.setter
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124 | dfee2caf | Stavros Sachtouris | def value(self, newvalue): |
125 | dfee2caf | Stavros Sachtouris | self._value = newvalue
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126 | dfee2caf | Stavros Sachtouris | |
127 | dfee2caf | Stavros Sachtouris | def update_parser(self, parser, name): |
128 | edb7fc1a | Stavros Sachtouris | """Update argument parser with self info"""
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129 | 0a0b9fb6 | Stavros Sachtouris | action = 'append' if self.arity < 0\ |
130 | 0a0b9fb6 | Stavros Sachtouris | else 'store_true' if self.arity == 0\ |
131 | 0a0b9fb6 | Stavros Sachtouris | else 'store' |
132 | de73876b | Stavros Sachtouris | parser.add_argument( |
133 | de73876b | Stavros Sachtouris | *self.parsed_name,
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134 | de73876b | Stavros Sachtouris | dest=name, |
135 | de73876b | Stavros Sachtouris | action=action, |
136 | de73876b | Stavros Sachtouris | default=self.default,
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137 | de73876b | Stavros Sachtouris | help=self.help)
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138 | dfee2caf | Stavros Sachtouris | |
139 | dfee2caf | Stavros Sachtouris | def main(self): |
140 | edb7fc1a | Stavros Sachtouris | """Overide this method to give functionality to your args"""
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141 | dfee2caf | Stavros Sachtouris | raise NotImplementedError |
142 | dfee2caf | Stavros Sachtouris | |
143 | fd5db045 | Stavros Sachtouris | |
144 | 9bdc89da | Stavros Sachtouris | class ConfigArgument(Argument): |
145 | 439926dd | Stavros Sachtouris | """Manage a kamaki configuration (file)"""
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146 | edb7fc1a | Stavros Sachtouris | |
147 | e9a92550 | Stavros Sachtouris | _config_file = None
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148 | e9a92550 | Stavros Sachtouris | |
149 | fd5db045 | Stavros Sachtouris | @property
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150 | c41a86b2 | Stavros Sachtouris | def value(self): |
151 | 439926dd | Stavros Sachtouris | """A Config object"""
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152 | d486baec | Stavros Sachtouris | super(self.__class__, self).value |
153 | c41a86b2 | Stavros Sachtouris | return super(self.__class__, self).value |
154 | fd5db045 | Stavros Sachtouris | |
155 | c41a86b2 | Stavros Sachtouris | @value.setter
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156 | c41a86b2 | Stavros Sachtouris | def value(self, config_file): |
157 | e9a92550 | Stavros Sachtouris | if config_file:
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158 | e9a92550 | Stavros Sachtouris | self._value = Config(config_file)
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159 | e9a92550 | Stavros Sachtouris | self._config_file = config_file
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160 | e9a92550 | Stavros Sachtouris | elif self._config_file: |
161 | e9a92550 | Stavros Sachtouris | self._value = Config(self._config_file) |
162 | e9a92550 | Stavros Sachtouris | else:
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163 | e9a92550 | Stavros Sachtouris | self._value = Config()
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164 | 9bdc89da | Stavros Sachtouris | |
165 | c41a86b2 | Stavros Sachtouris | def get(self, group, term): |
166 | 439926dd | Stavros Sachtouris | """Get a configuration setting from the Config object"""
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167 | c41a86b2 | Stavros Sachtouris | return self.value.get(group, term) |
168 | c41a86b2 | Stavros Sachtouris | |
169 | c41a86b2 | Stavros Sachtouris | def get_groups(self): |
170 | c41a86b2 | Stavros Sachtouris | return self.value.apis() |
171 | 017d37ce | Stavros Sachtouris | |
172 | 1736e06d | Stavros Sachtouris | _config_arg = ConfigArgument( |
173 | 1736e06d | Stavros Sachtouris | 1, 'Path to configuration file', |
174 | 1736e06d | Stavros Sachtouris | ('-c', '--config')) |
175 | 017d37ce | Stavros Sachtouris | |
176 | fd5db045 | Stavros Sachtouris | |
177 | 9bdc89da | Stavros Sachtouris | class CmdLineConfigArgument(Argument): |
178 | edb7fc1a | Stavros Sachtouris | """Set a run-time setting option (not persistent)"""
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179 | edb7fc1a | Stavros Sachtouris | |
180 | c41a86b2 | Stavros Sachtouris | def __init__(self, config_arg, help='', parsed_name=None, default=None): |
181 | c41a86b2 | Stavros Sachtouris | super(self.__class__, self).__init__(1, help, parsed_name, default) |
182 | c41a86b2 | Stavros Sachtouris | self._config_arg = config_arg
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183 | c41a86b2 | Stavros Sachtouris | |
184 | fd5db045 | Stavros Sachtouris | @property
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185 | c41a86b2 | Stavros Sachtouris | def value(self): |
186 | 439926dd | Stavros Sachtouris | """A key=val option"""
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187 | c41a86b2 | Stavros Sachtouris | return super(self.__class__, self).value |
188 | fd5db045 | Stavros Sachtouris | |
189 | c41a86b2 | Stavros Sachtouris | @value.setter
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190 | c41a86b2 | Stavros Sachtouris | def value(self, options): |
191 | c41a86b2 | Stavros Sachtouris | if options == self.default: |
192 | c41a86b2 | Stavros Sachtouris | return
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193 | fd5db045 | Stavros Sachtouris | if not isinstance(options, list): |
194 | a517ff50 | Stavros Sachtouris | options = ['%s' % options]
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195 | c41a86b2 | Stavros Sachtouris | for option in options: |
196 | c41a86b2 | Stavros Sachtouris | keypath, sep, val = option.partition('=')
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197 | c41a86b2 | Stavros Sachtouris | if not sep: |
198 | de73876b | Stavros Sachtouris | raiseCLIError( |
199 | de73876b | Stavros Sachtouris | CLISyntaxError('Argument Syntax Error '),
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200 | 24ff0a35 | Stavros Sachtouris | details=[ |
201 | 24ff0a35 | Stavros Sachtouris | '%s is missing a "="',
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202 | 24ff0a35 | Stavros Sachtouris | ' (usage: -o section.key=val)' % option])
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203 | c41a86b2 | Stavros Sachtouris | section, sep, key = keypath.partition('.')
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204 | 0a0b9fb6 | Stavros Sachtouris | if not sep: |
205 | 0a0b9fb6 | Stavros Sachtouris | key = section |
206 | 0a0b9fb6 | Stavros Sachtouris | section = 'global'
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207 | 0a0b9fb6 | Stavros Sachtouris | self._config_arg.value.override(
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208 | 0a0b9fb6 | Stavros Sachtouris | section.strip(), |
209 | fd5db045 | Stavros Sachtouris | key.strip(), |
210 | fd5db045 | Stavros Sachtouris | val.strip()) |
211 | fd5db045 | Stavros Sachtouris | |
212 | c41a86b2 | Stavros Sachtouris | |
213 | c41a86b2 | Stavros Sachtouris | class FlagArgument(Argument): |
214 | edb7fc1a | Stavros Sachtouris | """
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215 | 439926dd | Stavros Sachtouris | :value: true if set, false otherwise
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216 | edb7fc1a | Stavros Sachtouris | """
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217 | edb7fc1a | Stavros Sachtouris | |
218 | 40a9c357 | Stavros Sachtouris | def __init__(self, help='', parsed_name=None, default=False): |
219 | c41a86b2 | Stavros Sachtouris | super(FlagArgument, self).__init__(0, help, parsed_name, default) |
220 | c41a86b2 | Stavros Sachtouris | |
221 | fd5db045 | Stavros Sachtouris | |
222 | c41a86b2 | Stavros Sachtouris | class ValueArgument(Argument): |
223 | edb7fc1a | Stavros Sachtouris | """
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224 | edb7fc1a | Stavros Sachtouris | :value type: string
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225 | edb7fc1a | Stavros Sachtouris | :value returns: given value or default
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226 | edb7fc1a | Stavros Sachtouris | """
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227 | edb7fc1a | Stavros Sachtouris | |
228 | c41a86b2 | Stavros Sachtouris | def __init__(self, help='', parsed_name=None, default=None): |
229 | c41a86b2 | Stavros Sachtouris | super(ValueArgument, self).__init__(1, help, parsed_name, default) |
230 | c41a86b2 | Stavros Sachtouris | |
231 | fd5db045 | Stavros Sachtouris | |
232 | e3d4d442 | Stavros Sachtouris | class IntArgument(ValueArgument): |
233 | edb7fc1a | Stavros Sachtouris | |
234 | fd5db045 | Stavros Sachtouris | @property
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235 | e3d4d442 | Stavros Sachtouris | def value(self): |
236 | 439926dd | Stavros Sachtouris | """integer (type checking)"""
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237 | e3d4d442 | Stavros Sachtouris | return getattr(self, '_value', self.default) |
238 | fd5db045 | Stavros Sachtouris | |
239 | e3d4d442 | Stavros Sachtouris | @value.setter
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240 | e3d4d442 | Stavros Sachtouris | def value(self, newvalue): |
241 | e3d4d442 | Stavros Sachtouris | if newvalue == self.default: |
242 | e3d4d442 | Stavros Sachtouris | self._value = self.default |
243 | e3d4d442 | Stavros Sachtouris | return
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244 | e3d4d442 | Stavros Sachtouris | try:
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245 | e3d4d442 | Stavros Sachtouris | self._value = int(newvalue) |
246 | e3d4d442 | Stavros Sachtouris | except ValueError: |
247 | 24ff0a35 | Stavros Sachtouris | raiseCLIError(CLISyntaxError( |
248 | 24ff0a35 | Stavros Sachtouris | 'IntArgument Error',
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249 | c8e17a67 | Stavros Sachtouris | details=['Value %s not an int' % newvalue]))
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250 | fd5db045 | Stavros Sachtouris | |
251 | e3d4d442 | Stavros Sachtouris | |
252 | 04d01cd4 | Stavros Sachtouris | class DateArgument(ValueArgument): |
253 | 04d01cd4 | Stavros Sachtouris | """
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254 | 04d01cd4 | Stavros Sachtouris | :value type: a string formated in an acceptable date format
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255 | 04d01cd4 | Stavros Sachtouris |
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256 | 04d01cd4 | Stavros Sachtouris | :value returns: same date in first of DATE_FORMATS
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257 | 04d01cd4 | Stavros Sachtouris | """
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258 | 04d01cd4 | Stavros Sachtouris | |
259 | de73876b | Stavros Sachtouris | DATE_FORMATS = [ |
260 | de73876b | Stavros Sachtouris | "%a %b %d %H:%M:%S %Y",
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261 | 04d01cd4 | Stavros Sachtouris | "%A, %d-%b-%y %H:%M:%S GMT",
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262 | 04d01cd4 | Stavros Sachtouris | "%a, %d %b %Y %H:%M:%S GMT"]
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263 | 04d01cd4 | Stavros Sachtouris | |
264 | 04d01cd4 | Stavros Sachtouris | INPUT_FORMATS = DATE_FORMATS + ["%d-%m-%Y", "%H:%M:%S %d-%m-%Y"] |
265 | 04d01cd4 | Stavros Sachtouris | |
266 | 04d01cd4 | Stavros Sachtouris | @property
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267 | ea4a21b8 | Stavros Sachtouris | def timestamp(self): |
268 | ea4a21b8 | Stavros Sachtouris | v = getattr(self, '_value', self.default) |
269 | ea4a21b8 | Stavros Sachtouris | return mktime(v.timetuple()) if v else None |
270 | ea4a21b8 | Stavros Sachtouris | |
271 | ea4a21b8 | Stavros Sachtouris | @property
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272 | ea4a21b8 | Stavros Sachtouris | def formated(self): |
273 | ea4a21b8 | Stavros Sachtouris | v = getattr(self, '_value', self.default) |
274 | ea4a21b8 | Stavros Sachtouris | return v.strftime(self.DATE_FORMATS[0]) if v else None |
275 | ea4a21b8 | Stavros Sachtouris | |
276 | ea4a21b8 | Stavros Sachtouris | @property
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277 | 04d01cd4 | Stavros Sachtouris | def value(self): |
278 | ea4a21b8 | Stavros Sachtouris | return self.timestamp |
279 | 04d01cd4 | Stavros Sachtouris | |
280 | 04d01cd4 | Stavros Sachtouris | @value.setter
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281 | 04d01cd4 | Stavros Sachtouris | def value(self, newvalue): |
282 | ea4a21b8 | Stavros Sachtouris | if newvalue:
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283 | ea4a21b8 | Stavros Sachtouris | self._value = self.format_date(newvalue) |
284 | 04d01cd4 | Stavros Sachtouris | |
285 | 04d01cd4 | Stavros Sachtouris | def format_date(self, datestr): |
286 | 04d01cd4 | Stavros Sachtouris | for format in self.INPUT_FORMATS: |
287 | 04d01cd4 | Stavros Sachtouris | try:
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288 | 04d01cd4 | Stavros Sachtouris | t = dtm.strptime(datestr, format) |
289 | 04d01cd4 | Stavros Sachtouris | except ValueError: |
290 | 04d01cd4 | Stavros Sachtouris | continue
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291 | ea4a21b8 | Stavros Sachtouris | return t # .strftime(self.DATE_FORMATS[0]) |
292 | de73876b | Stavros Sachtouris | raiseCLIError( |
293 | de73876b | Stavros Sachtouris | None,
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294 | 04d01cd4 | Stavros Sachtouris | 'Date Argument Error',
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295 | 24ff0a35 | Stavros Sachtouris | details='%s not a valid date. correct formats:\n\t%s' % (
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296 | 24ff0a35 | Stavros Sachtouris | datestr, self.INPUT_FORMATS))
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297 | 04d01cd4 | Stavros Sachtouris | |
298 | 04d01cd4 | Stavros Sachtouris | |
299 | c41a86b2 | Stavros Sachtouris | class VersionArgument(FlagArgument): |
300 | edb7fc1a | Stavros Sachtouris | """A flag argument with that prints current version"""
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301 | edb7fc1a | Stavros Sachtouris | |
302 | fd5db045 | Stavros Sachtouris | @property
|
303 | c41a86b2 | Stavros Sachtouris | def value(self): |
304 | 439926dd | Stavros Sachtouris | """bool"""
|
305 | c41a86b2 | Stavros Sachtouris | return super(self.__class__, self).value |
306 | fd5db045 | Stavros Sachtouris | |
307 | c41a86b2 | Stavros Sachtouris | @value.setter
|
308 | c41a86b2 | Stavros Sachtouris | def value(self, newvalue): |
309 | c41a86b2 | Stavros Sachtouris | self._value = newvalue
|
310 | c41a86b2 | Stavros Sachtouris | self.main()
|
311 | c41a86b2 | Stavros Sachtouris | |
312 | c41a86b2 | Stavros Sachtouris | def main(self): |
313 | 439926dd | Stavros Sachtouris | """Print current version"""
|
314 | c41a86b2 | Stavros Sachtouris | if self.value: |
315 | c41a86b2 | Stavros Sachtouris | import kamaki |
316 | fd5db045 | Stavros Sachtouris | print('kamaki %s' % kamaki.__version__)
|
317 | fd5db045 | Stavros Sachtouris | |
318 | 9bdc89da | Stavros Sachtouris | |
319 | 0a0b9fb6 | Stavros Sachtouris | class KeyValueArgument(Argument): |
320 | edb7fc1a | Stavros Sachtouris | """A Value Argument that can be repeated
|
321 | edb7fc1a | Stavros Sachtouris |
|
322 | 439926dd | Stavros Sachtouris | :syntax: --<arg> key1=value1 --<arg> key2=value2 ...
|
323 | edb7fc1a | Stavros Sachtouris | """
|
324 | edb7fc1a | Stavros Sachtouris | |
325 | 0a0b9fb6 | Stavros Sachtouris | def __init__(self, help='', parsed_name=None, default=[]): |
326 | 0a0b9fb6 | Stavros Sachtouris | super(KeyValueArgument, self).__init__(-1, help, parsed_name, default) |
327 | f3e94e06 | Stavros Sachtouris | |
328 | fd5db045 | Stavros Sachtouris | @property
|
329 | f3e94e06 | Stavros Sachtouris | def value(self): |
330 | 439926dd | Stavros Sachtouris | """
|
331 | 439926dd | Stavros Sachtouris | :input: key=value
|
332 | 439926dd | Stavros Sachtouris | :output: {'key1':'value1', 'key2':'value2', ...}
|
333 | 439926dd | Stavros Sachtouris | """
|
334 | f3e94e06 | Stavros Sachtouris | return super(KeyValueArgument, self).value |
335 | fd5db045 | Stavros Sachtouris | |
336 | fd5db045 | Stavros Sachtouris | @value.setter
|
337 | f3e94e06 | Stavros Sachtouris | def value(self, keyvalue_pairs): |
338 | 0a0b9fb6 | Stavros Sachtouris | self._value = {}
|
339 | f3e94e06 | Stavros Sachtouris | for pair in keyvalue_pairs: |
340 | fd5db045 | Stavros Sachtouris | key, sep, val = pair.partition('=')
|
341 | f3e94e06 | Stavros Sachtouris | if not sep: |
342 | de73876b | Stavros Sachtouris | raiseCLIError( |
343 | de73876b | Stavros Sachtouris | CLISyntaxError('Argument syntax error '),
|
344 | 0a0b9fb6 | Stavros Sachtouris | details='%s is missing a "=" (usage: key1=val1 )\n' % pair)
|
345 | 23803b28 | Stavros Sachtouris | self._value[key.strip()] = val.strip()
|
346 | f3e94e06 | Stavros Sachtouris | |
347 | fd1f1d96 | Stavros Sachtouris | |
348 | fd1f1d96 | Stavros Sachtouris | class ProgressBarArgument(FlagArgument): |
349 | 439926dd | Stavros Sachtouris | """Manage a progress bar"""
|
350 | fd1f1d96 | Stavros Sachtouris | |
351 | fd1f1d96 | Stavros Sachtouris | def __init__(self, help='', parsed_name='', default=True): |
352 | fd1f1d96 | Stavros Sachtouris | self.suffix = '%(percent)d%%' |
353 | fd1f1d96 | Stavros Sachtouris | super(ProgressBarArgument, self).__init__(help, parsed_name, default) |
354 | fd1f1d96 | Stavros Sachtouris | try:
|
355 | 1d329d27 | Stavros Sachtouris | KamakiProgressBar |
356 | fd1f1d96 | Stavros Sachtouris | except NameError: |
357 | 9986e569 | Stavros Sachtouris | log.debug('WARNING: no progress bar functionality')
|
358 | fd1f1d96 | Stavros Sachtouris | |
359 | 852a22e7 | Stavros Sachtouris | def clone(self): |
360 | 439926dd | Stavros Sachtouris | """Get a modifiable copy of this bar"""
|
361 | 852a22e7 | Stavros Sachtouris | newarg = ProgressBarArgument( |
362 | 852a22e7 | Stavros Sachtouris | self.help,
|
363 | 852a22e7 | Stavros Sachtouris | self.parsed_name,
|
364 | 852a22e7 | Stavros Sachtouris | self.default)
|
365 | 852a22e7 | Stavros Sachtouris | newarg._value = self._value
|
366 | 852a22e7 | Stavros Sachtouris | return newarg
|
367 | 852a22e7 | Stavros Sachtouris | |
368 | fd1f1d96 | Stavros Sachtouris | def get_generator(self, message, message_len=25): |
369 | 439926dd | Stavros Sachtouris | """Get a generator to handle progress of the bar (gen.next())"""
|
370 | fd1f1d96 | Stavros Sachtouris | if self.value: |
371 | fd1f1d96 | Stavros Sachtouris | return None |
372 | fd1f1d96 | Stavros Sachtouris | try:
|
373 | 1d329d27 | Stavros Sachtouris | self.bar = KamakiProgressBar()
|
374 | fd1f1d96 | Stavros Sachtouris | except NameError: |
375 | 329753ae | Stavros Sachtouris | self.value = None |
376 | 329753ae | Stavros Sachtouris | return self.value |
377 | 329753ae | Stavros Sachtouris | self.bar.message = message.ljust(message_len)
|
378 | 852a22e7 | Stavros Sachtouris | self.bar.suffix = '%(percent)d%% - %(eta)ds' |
379 | a10f5561 | Stavros Sachtouris | self.bar.start()
|
380 | fd1f1d96 | Stavros Sachtouris | |
381 | 852a22e7 | Stavros Sachtouris | def progress_gen(n): |
382 | 852a22e7 | Stavros Sachtouris | for i in self.bar.iter(range(int(n))): |
383 | 852a22e7 | Stavros Sachtouris | yield
|
384 | 852a22e7 | Stavros Sachtouris | yield
|
385 | 852a22e7 | Stavros Sachtouris | return progress_gen
|
386 | fd1f1d96 | Stavros Sachtouris | |
387 | 852a22e7 | Stavros Sachtouris | def finish(self): |
388 | 439926dd | Stavros Sachtouris | """Stop progress bar, return terminal cursor to user"""
|
389 | 852a22e7 | Stavros Sachtouris | if self.value: |
390 | 852a22e7 | Stavros Sachtouris | return
|
391 | 852a22e7 | Stavros Sachtouris | mybar = getattr(self, 'bar', None) |
392 | 852a22e7 | Stavros Sachtouris | if mybar:
|
393 | 852a22e7 | Stavros Sachtouris | mybar.finish() |
394 | fd1f1d96 | Stavros Sachtouris | |
395 | fd1f1d96 | Stavros Sachtouris | |
396 | de73876b | Stavros Sachtouris | _arguments = dict(
|
397 | de73876b | Stavros Sachtouris | config=_config_arg, |
398 | fd5db045 | Stavros Sachtouris | help=Argument(0, 'Show help message', ('-h', '--help')), |
399 | fd5db045 | Stavros Sachtouris | debug=FlagArgument('Include debug output', ('-d', '--debug')), |
400 | de73876b | Stavros Sachtouris | include=FlagArgument( |
401 | de73876b | Stavros Sachtouris | 'Include raw connection data in the output',
|
402 | fd5db045 | Stavros Sachtouris | ('-i', '--include')), |
403 | fd5db045 | Stavros Sachtouris | silent=FlagArgument('Do not output anything', ('-s', '--silent')), |
404 | fd5db045 | Stavros Sachtouris | verbose=FlagArgument('More info at response', ('-v', '--verbose')), |
405 | fd5db045 | Stavros Sachtouris | version=VersionArgument('Print current version', ('-V', '--version')), |
406 | de73876b | Stavros Sachtouris | options=CmdLineConfigArgument( |
407 | de73876b | Stavros Sachtouris | _config_arg, |
408 | fd5db045 | Stavros Sachtouris | 'Override a config value',
|
409 | fd5db045 | Stavros Sachtouris | ('-o', '--options')) |
410 | 9bdc89da | Stavros Sachtouris | ) |
411 | 439926dd | Stavros Sachtouris | """Initial command line interface arguments"""
|
412 | 439926dd | Stavros Sachtouris | |
413 | 439926dd | Stavros Sachtouris | |
414 | 439926dd | Stavros Sachtouris | """
|
415 | 439926dd | Stavros Sachtouris | Mechanism:
|
416 | 439926dd | Stavros Sachtouris | init_parser
|
417 | 439926dd | Stavros Sachtouris | parse_known_args
|
418 | 439926dd | Stavros Sachtouris | manage top-level user arguments input
|
419 | 439926dd | Stavros Sachtouris | find user-requested command
|
420 | 439926dd | Stavros Sachtouris | add command-specific arguments to dict
|
421 | 439926dd | Stavros Sachtouris | update_arguments
|
422 | 439926dd | Stavros Sachtouris | """
|
423 | 439926dd | Stavros Sachtouris | |
424 | 439926dd | Stavros Sachtouris | |
425 | 7c2247a0 | Stavros Sachtouris | class ArgumentParseManager(object): |
426 | e0da0f90 | Stavros Sachtouris | """Manage (initialize and update) an ArgumentParser object"""
|
427 | e0da0f90 | Stavros Sachtouris | |
428 | 5ad77121 | Stavros Sachtouris | parser = None
|
429 | 7c2247a0 | Stavros Sachtouris | _arguments = {} |
430 | b3dd8f4b | Stavros Sachtouris | _parser_modified = False
|
431 | b3dd8f4b | Stavros Sachtouris | _parsed = None
|
432 | b3dd8f4b | Stavros Sachtouris | _unparsed = None
|
433 | e0da0f90 | Stavros Sachtouris | |
434 | e0da0f90 | Stavros Sachtouris | def __init__(self, exe, arguments=None): |
435 | e0da0f90 | Stavros Sachtouris | """
|
436 | e0da0f90 | Stavros Sachtouris | :param exe: (str) the basic command (e.g. 'kamaki')
|
437 | e0da0f90 | Stavros Sachtouris |
|
438 | e0da0f90 | Stavros Sachtouris | :param arguments: (dict) if given, overrides the global _argument as
|
439 | e0da0f90 | Stavros Sachtouris | the parsers arguments specification
|
440 | e0da0f90 | Stavros Sachtouris | """
|
441 | de73876b | Stavros Sachtouris | self.parser = ArgumentParser(
|
442 | de73876b | Stavros Sachtouris | add_help=False,
|
443 | 2703cceb | Stavros Sachtouris | formatter_class=RawDescriptionHelpFormatter) |
444 | b3dd8f4b | Stavros Sachtouris | self.syntax = '%s <cmd_group> [<cmd_subbroup> ...] <cmd>' % exe |
445 | e0da0f90 | Stavros Sachtouris | if arguments:
|
446 | e0da0f90 | Stavros Sachtouris | self.arguments = arguments
|
447 | e0da0f90 | Stavros Sachtouris | else:
|
448 | e0da0f90 | Stavros Sachtouris | global _arguments
|
449 | e0da0f90 | Stavros Sachtouris | self.arguments = _arguments
|
450 | 7c2247a0 | Stavros Sachtouris | self.parse()
|
451 | e0da0f90 | Stavros Sachtouris | |
452 | e0da0f90 | Stavros Sachtouris | @property
|
453 | e0da0f90 | Stavros Sachtouris | def syntax(self): |
454 | b3dd8f4b | Stavros Sachtouris | """The command syntax (useful for help messages, descriptions, etc)"""
|
455 | e0da0f90 | Stavros Sachtouris | return self.parser.prog |
456 | e0da0f90 | Stavros Sachtouris | |
457 | e0da0f90 | Stavros Sachtouris | @syntax.setter
|
458 | e0da0f90 | Stavros Sachtouris | def syntax(self, new_syntax): |
459 | e0da0f90 | Stavros Sachtouris | self.parser.prog = new_syntax
|
460 | e0da0f90 | Stavros Sachtouris | |
461 | b3dd8f4b | Stavros Sachtouris | @property
|
462 | b3dd8f4b | Stavros Sachtouris | def arguments(self): |
463 | b3dd8f4b | Stavros Sachtouris | """(dict) arguments the parser should be aware of"""
|
464 | b3dd8f4b | Stavros Sachtouris | return self._arguments |
465 | b3dd8f4b | Stavros Sachtouris | |
466 | b3dd8f4b | Stavros Sachtouris | @arguments.setter
|
467 | b3dd8f4b | Stavros Sachtouris | def arguments(self, new_arguments): |
468 | b3dd8f4b | Stavros Sachtouris | if new_arguments:
|
469 | b3dd8f4b | Stavros Sachtouris | assert isinstance(new_arguments, dict) |
470 | b3dd8f4b | Stavros Sachtouris | self._arguments = new_arguments
|
471 | b3dd8f4b | Stavros Sachtouris | self.update_parser()
|
472 | b3dd8f4b | Stavros Sachtouris | |
473 | 7c2247a0 | Stavros Sachtouris | @property
|
474 | b3dd8f4b | Stavros Sachtouris | def parsed(self): |
475 | 7c2247a0 | Stavros Sachtouris | """(Namespace) parser-matched terms"""
|
476 | b3dd8f4b | Stavros Sachtouris | if self._parser_modified: |
477 | b3dd8f4b | Stavros Sachtouris | self.parse()
|
478 | b3dd8f4b | Stavros Sachtouris | return self._parsed |
479 | b3dd8f4b | Stavros Sachtouris | |
480 | b3dd8f4b | Stavros Sachtouris | @property
|
481 | b3dd8f4b | Stavros Sachtouris | def unparsed(self): |
482 | b3dd8f4b | Stavros Sachtouris | """(list) parser-unmatched terms"""
|
483 | b3dd8f4b | Stavros Sachtouris | if self._parser_modified: |
484 | b3dd8f4b | Stavros Sachtouris | self.parse()
|
485 | b3dd8f4b | Stavros Sachtouris | return self._unparsed |
486 | b3dd8f4b | Stavros Sachtouris | |
487 | e0da0f90 | Stavros Sachtouris | def update_parser(self, arguments=None): |
488 | e0da0f90 | Stavros Sachtouris | """Load argument specifications to parser
|
489 | e0da0f90 | Stavros Sachtouris |
|
490 | e0da0f90 | Stavros Sachtouris | :param arguments: if not given, update self.arguments instead
|
491 | e0da0f90 | Stavros Sachtouris | """
|
492 | e0da0f90 | Stavros Sachtouris | if not arguments: |
493 | b3dd8f4b | Stavros Sachtouris | arguments = self._arguments
|
494 | e0da0f90 | Stavros Sachtouris | |
495 | e0da0f90 | Stavros Sachtouris | for name, arg in arguments.items(): |
496 | e0da0f90 | Stavros Sachtouris | try:
|
497 | e0da0f90 | Stavros Sachtouris | arg.update_parser(self.parser, name)
|
498 | b3dd8f4b | Stavros Sachtouris | self._parser_modified = True |
499 | e0da0f90 | Stavros Sachtouris | except ArgumentError:
|
500 | e0da0f90 | Stavros Sachtouris | pass
|
501 | e0da0f90 | Stavros Sachtouris | |
502 | 7c2247a0 | Stavros Sachtouris | def update_arguments(self, new_arguments): |
503 | 7c2247a0 | Stavros Sachtouris | """Add to / update existing arguments
|
504 | 7c2247a0 | Stavros Sachtouris |
|
505 | 7c2247a0 | Stavros Sachtouris | :param new_arguments: (dict)
|
506 | 7c2247a0 | Stavros Sachtouris | """
|
507 | 7c2247a0 | Stavros Sachtouris | if new_arguments:
|
508 | 7c2247a0 | Stavros Sachtouris | assert isinstance(new_arguments, dict) |
509 | 7c2247a0 | Stavros Sachtouris | self._arguments.update(new_arguments)
|
510 | 7c2247a0 | Stavros Sachtouris | self.update_parser()
|
511 | 7c2247a0 | Stavros Sachtouris | |
512 | 120126f1 | Stavros Sachtouris | def parse(self, new_args=None): |
513 | 7c2247a0 | Stavros Sachtouris | """Do parse user input"""
|
514 | c8e17a67 | Stavros Sachtouris | try:
|
515 | c8e17a67 | Stavros Sachtouris | if new_args:
|
516 | c8e17a67 | Stavros Sachtouris | self._parsed, unparsed = self.parser.parse_known_args(new_args) |
517 | c8e17a67 | Stavros Sachtouris | else:
|
518 | c8e17a67 | Stavros Sachtouris | self._parsed, unparsed = self.parser.parse_known_args() |
519 | c8e17a67 | Stavros Sachtouris | except SystemExit: |
520 | c8e17a67 | Stavros Sachtouris | # deal with the fact that argparse error system is STUPID
|
521 | c8e17a67 | Stavros Sachtouris | raiseCLIError(CLISyntaxError('Argument Syntax Error'))
|
522 | b3dd8f4b | Stavros Sachtouris | for name, arg in self.arguments.items(): |
523 | b3dd8f4b | Stavros Sachtouris | arg.value = getattr(self._parsed, name, arg.default) |
524 | b3dd8f4b | Stavros Sachtouris | self._unparsed = []
|
525 | b3dd8f4b | Stavros Sachtouris | for term in unparsed: |
526 | b3dd8f4b | Stavros Sachtouris | self._unparsed += split_input(' \'%s\' ' % term) |
527 | b3dd8f4b | Stavros Sachtouris | self._parser_modified = False |