root / kamaki / cli / argument.py @ 34e4cf61
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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 | db8d1766 | Stavros Sachtouris | from logging import getLogger |
38 | db8d1766 | Stavros Sachtouris | |
39 | e0f40c94 | Stavros Sachtouris | |
40 | af6de846 | Stavros Sachtouris | from argparse import ArgumentParser, ArgumentError |
41 | dfee2caf | Stavros Sachtouris | |
42 | fd1f1d96 | Stavros Sachtouris | try:
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43 | 365280ca | Stavros Sachtouris | from progress.bar import ShadyBar as KamakiProgressBar |
44 | fd1f1d96 | Stavros Sachtouris | except ImportError: |
45 | fd1f1d96 | Stavros Sachtouris | # progress not installed - pls, pip install progress
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46 | fd1f1d96 | Stavros Sachtouris | pass
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47 | fd1f1d96 | Stavros Sachtouris | |
48 | b6a99832 | Stavros Sachtouris | kloger = getLogger('kamaki')
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49 | db8d1766 | Stavros Sachtouris | |
50 | fd5db045 | Stavros Sachtouris | |
51 | dfee2caf | Stavros Sachtouris | class Argument(object): |
52 | edb7fc1a | Stavros Sachtouris | """An argument that can be parsed from command line or otherwise.
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53 | edb7fc1a | Stavros Sachtouris | This is the general Argument class. It is suggested to extent this
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54 | edb7fc1a | Stavros Sachtouris | class into more specific argument types.
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55 | edb7fc1a | Stavros Sachtouris | """
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56 | dfee2caf | Stavros Sachtouris | |
57 | dfee2caf | Stavros Sachtouris | def __init__(self, arity, help=None, parsed_name=None, default=None): |
58 | 606fe15f | Stavros Sachtouris | self.arity = int(arity) |
59 | 606fe15f | Stavros Sachtouris | |
60 | dfee2caf | Stavros Sachtouris | if help is not None: |
61 | dfee2caf | Stavros Sachtouris | self.help = help
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62 | dfee2caf | Stavros Sachtouris | if parsed_name is not None: |
63 | dfee2caf | Stavros Sachtouris | self.parsed_name = parsed_name
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64 | dfee2caf | Stavros Sachtouris | if default is not None: |
65 | dfee2caf | Stavros Sachtouris | self.default = default
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66 | dfee2caf | Stavros Sachtouris | |
67 | fd5db045 | Stavros Sachtouris | @property
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68 | dfee2caf | Stavros Sachtouris | def parsed_name(self): |
69 | edb7fc1a | Stavros Sachtouris | """the string which will be recognised by the parser as an instance
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70 | edb7fc1a | Stavros Sachtouris | of this argument
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71 | edb7fc1a | Stavros Sachtouris | """
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72 | dfee2caf | Stavros Sachtouris | return getattr(self, '_parsed_name', None) |
73 | fd5db045 | Stavros Sachtouris | |
74 | dfee2caf | Stavros Sachtouris | @parsed_name.setter
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75 | dfee2caf | Stavros Sachtouris | def parsed_name(self, newname): |
76 | dfee2caf | Stavros Sachtouris | self._parsed_name = getattr(self, '_parsed_name', []) |
77 | dfee2caf | Stavros Sachtouris | if isinstance(newname, list) or isinstance(newname, tuple): |
78 | dfee2caf | Stavros Sachtouris | self._parsed_name += list(newname) |
79 | dfee2caf | Stavros Sachtouris | else:
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80 | dfee2caf | Stavros Sachtouris | self._parsed_name.append(unicode(newname)) |
81 | dfee2caf | Stavros Sachtouris | |
82 | fd5db045 | Stavros Sachtouris | @property
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83 | dfee2caf | Stavros Sachtouris | def help(self): |
84 | edb7fc1a | Stavros Sachtouris | """a user friendly help message"""
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85 | dfee2caf | Stavros Sachtouris | return getattr(self, '_help', None) |
86 | fd5db045 | Stavros Sachtouris | |
87 | dfee2caf | Stavros Sachtouris | @help.setter
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88 | dfee2caf | Stavros Sachtouris | def help(self, newhelp): |
89 | dfee2caf | Stavros Sachtouris | self._help = unicode(newhelp) |
90 | dfee2caf | Stavros Sachtouris | |
91 | fd5db045 | Stavros Sachtouris | @property
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92 | dfee2caf | Stavros Sachtouris | def arity(self): |
93 | edb7fc1a | Stavros Sachtouris | """negative for repeating, 0 for flag, 1 or more for values"""
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94 | dfee2caf | Stavros Sachtouris | return getattr(self, '_arity', None) |
95 | fd5db045 | Stavros Sachtouris | |
96 | dfee2caf | Stavros Sachtouris | @arity.setter
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97 | dfee2caf | Stavros Sachtouris | def arity(self, newarity): |
98 | dfee2caf | Stavros Sachtouris | newarity = int(newarity)
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99 | dfee2caf | Stavros Sachtouris | self._arity = newarity
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100 | dfee2caf | Stavros Sachtouris | |
101 | fd5db045 | Stavros Sachtouris | @property
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102 | dfee2caf | Stavros Sachtouris | def default(self): |
103 | edb7fc1a | Stavros Sachtouris | """the value of this argument when not set"""
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104 | dfee2caf | Stavros Sachtouris | if not hasattr(self, '_default'): |
105 | dfee2caf | Stavros Sachtouris | self._default = False if self.arity == 0 else None |
106 | dfee2caf | Stavros Sachtouris | return self._default |
107 | fd5db045 | Stavros Sachtouris | |
108 | dfee2caf | Stavros Sachtouris | @default.setter
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109 | dfee2caf | Stavros Sachtouris | def default(self, newdefault): |
110 | dfee2caf | Stavros Sachtouris | self._default = newdefault
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111 | dfee2caf | Stavros Sachtouris | |
112 | fd5db045 | Stavros Sachtouris | @property
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113 | dfee2caf | Stavros Sachtouris | def value(self): |
114 | edb7fc1a | Stavros Sachtouris | """the value of the argument"""
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115 | dfee2caf | Stavros Sachtouris | return getattr(self, '_value', self.default) |
116 | fd5db045 | Stavros Sachtouris | |
117 | dfee2caf | Stavros Sachtouris | @value.setter
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118 | dfee2caf | Stavros Sachtouris | def value(self, newvalue): |
119 | dfee2caf | Stavros Sachtouris | self._value = newvalue
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120 | dfee2caf | Stavros Sachtouris | |
121 | dfee2caf | Stavros Sachtouris | def update_parser(self, parser, name): |
122 | edb7fc1a | Stavros Sachtouris | """Update argument parser with self info"""
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123 | 0a0b9fb6 | Stavros Sachtouris | action = 'append' if self.arity < 0\ |
124 | 0a0b9fb6 | Stavros Sachtouris | else 'store_true' if self.arity == 0\ |
125 | 0a0b9fb6 | Stavros Sachtouris | else 'store' |
126 | dfee2caf | Stavros Sachtouris | parser.add_argument(*self.parsed_name, dest=name, action=action,
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127 | dfee2caf | Stavros Sachtouris | default=self.default, help=self.help) |
128 | dfee2caf | Stavros Sachtouris | |
129 | dfee2caf | Stavros Sachtouris | def main(self): |
130 | edb7fc1a | Stavros Sachtouris | """Overide this method to give functionality to your args"""
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131 | dfee2caf | Stavros Sachtouris | raise NotImplementedError |
132 | dfee2caf | Stavros Sachtouris | |
133 | fd5db045 | Stavros Sachtouris | |
134 | 9bdc89da | Stavros Sachtouris | class ConfigArgument(Argument): |
135 | 439926dd | Stavros Sachtouris | """Manage a kamaki configuration (file)"""
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136 | edb7fc1a | Stavros Sachtouris | |
137 | e9a92550 | Stavros Sachtouris | _config_file = None
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138 | e9a92550 | Stavros Sachtouris | |
139 | fd5db045 | Stavros Sachtouris | @property
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140 | c41a86b2 | Stavros Sachtouris | def value(self): |
141 | 439926dd | Stavros Sachtouris | """A Config object"""
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142 | d486baec | Stavros Sachtouris | super(self.__class__, self).value |
143 | c41a86b2 | Stavros Sachtouris | return super(self.__class__, self).value |
144 | fd5db045 | Stavros Sachtouris | |
145 | c41a86b2 | Stavros Sachtouris | @value.setter
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146 | c41a86b2 | Stavros Sachtouris | def value(self, config_file): |
147 | e9a92550 | Stavros Sachtouris | if config_file:
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148 | e9a92550 | Stavros Sachtouris | self._value = Config(config_file)
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149 | e9a92550 | Stavros Sachtouris | self._config_file = config_file
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150 | e9a92550 | Stavros Sachtouris | elif self._config_file: |
151 | e9a92550 | Stavros Sachtouris | self._value = Config(self._config_file) |
152 | e9a92550 | Stavros Sachtouris | else:
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153 | e9a92550 | Stavros Sachtouris | self._value = Config()
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154 | 9bdc89da | Stavros Sachtouris | |
155 | c41a86b2 | Stavros Sachtouris | def get(self, group, term): |
156 | 439926dd | Stavros Sachtouris | """Get a configuration setting from the Config object"""
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157 | c41a86b2 | Stavros Sachtouris | return self.value.get(group, term) |
158 | c41a86b2 | Stavros Sachtouris | |
159 | c41a86b2 | Stavros Sachtouris | def get_groups(self): |
160 | c41a86b2 | Stavros Sachtouris | return self.value.apis() |
161 | 017d37ce | Stavros Sachtouris | |
162 | 017d37ce | Stavros Sachtouris | _config_arg = ConfigArgument(1, 'Path to configuration file', '--config') |
163 | 017d37ce | Stavros Sachtouris | |
164 | fd5db045 | Stavros Sachtouris | |
165 | 9bdc89da | Stavros Sachtouris | class CmdLineConfigArgument(Argument): |
166 | edb7fc1a | Stavros Sachtouris | """Set a run-time setting option (not persistent)"""
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167 | edb7fc1a | Stavros Sachtouris | |
168 | c41a86b2 | Stavros Sachtouris | def __init__(self, config_arg, help='', parsed_name=None, default=None): |
169 | c41a86b2 | Stavros Sachtouris | super(self.__class__, self).__init__(1, help, parsed_name, default) |
170 | c41a86b2 | Stavros Sachtouris | self._config_arg = config_arg
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171 | c41a86b2 | Stavros Sachtouris | |
172 | fd5db045 | Stavros Sachtouris | @property
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173 | c41a86b2 | Stavros Sachtouris | def value(self): |
174 | 439926dd | Stavros Sachtouris | """A key=val option"""
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175 | c41a86b2 | Stavros Sachtouris | return super(self.__class__, self).value |
176 | fd5db045 | Stavros Sachtouris | |
177 | c41a86b2 | Stavros Sachtouris | @value.setter
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178 | c41a86b2 | Stavros Sachtouris | def value(self, options): |
179 | c41a86b2 | Stavros Sachtouris | if options == self.default: |
180 | c41a86b2 | Stavros Sachtouris | return
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181 | fd5db045 | Stavros Sachtouris | if not isinstance(options, list): |
182 | fd5db045 | Stavros Sachtouris | options = [unicode(options)]
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183 | c41a86b2 | Stavros Sachtouris | for option in options: |
184 | c41a86b2 | Stavros Sachtouris | keypath, sep, val = option.partition('=')
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185 | c41a86b2 | Stavros Sachtouris | if not sep: |
186 | b696ed2c | Stavros Sachtouris | raiseCLIError(CLISyntaxError('Argument Syntax Error '),
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187 | b696ed2c | Stavros Sachtouris | details=['%s is missing a "="',
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188 | b696ed2c | Stavros Sachtouris | ' (usage: -o section.key=val)' % option]
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189 | b696ed2c | Stavros Sachtouris | ) |
190 | c41a86b2 | Stavros Sachtouris | section, sep, key = keypath.partition('.')
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191 | 0a0b9fb6 | Stavros Sachtouris | if not sep: |
192 | 0a0b9fb6 | Stavros Sachtouris | key = section |
193 | 0a0b9fb6 | Stavros Sachtouris | section = 'global'
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194 | 0a0b9fb6 | Stavros Sachtouris | self._config_arg.value.override(
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195 | 0a0b9fb6 | Stavros Sachtouris | section.strip(), |
196 | fd5db045 | Stavros Sachtouris | key.strip(), |
197 | fd5db045 | Stavros Sachtouris | val.strip()) |
198 | fd5db045 | Stavros Sachtouris | |
199 | c41a86b2 | Stavros Sachtouris | |
200 | c41a86b2 | Stavros Sachtouris | class FlagArgument(Argument): |
201 | edb7fc1a | Stavros Sachtouris | """
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202 | 439926dd | Stavros Sachtouris | :value: true if set, false otherwise
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203 | edb7fc1a | Stavros Sachtouris | """
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204 | edb7fc1a | Stavros Sachtouris | |
205 | 40a9c357 | Stavros Sachtouris | def __init__(self, help='', parsed_name=None, default=False): |
206 | c41a86b2 | Stavros Sachtouris | super(FlagArgument, self).__init__(0, help, parsed_name, default) |
207 | c41a86b2 | Stavros Sachtouris | |
208 | fd5db045 | Stavros Sachtouris | |
209 | c41a86b2 | Stavros Sachtouris | class ValueArgument(Argument): |
210 | edb7fc1a | Stavros Sachtouris | """
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211 | edb7fc1a | Stavros Sachtouris | :value type: string
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212 | edb7fc1a | Stavros Sachtouris | :value returns: given value or default
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213 | edb7fc1a | Stavros Sachtouris | """
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214 | edb7fc1a | Stavros Sachtouris | |
215 | c41a86b2 | Stavros Sachtouris | def __init__(self, help='', parsed_name=None, default=None): |
216 | c41a86b2 | Stavros Sachtouris | super(ValueArgument, self).__init__(1, help, parsed_name, default) |
217 | c41a86b2 | Stavros Sachtouris | |
218 | fd5db045 | Stavros Sachtouris | |
219 | e3d4d442 | Stavros Sachtouris | class IntArgument(ValueArgument): |
220 | edb7fc1a | Stavros Sachtouris | |
221 | fd5db045 | Stavros Sachtouris | @property
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222 | e3d4d442 | Stavros Sachtouris | def value(self): |
223 | 439926dd | Stavros Sachtouris | """integer (type checking)"""
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224 | e3d4d442 | Stavros Sachtouris | return getattr(self, '_value', self.default) |
225 | fd5db045 | Stavros Sachtouris | |
226 | e3d4d442 | Stavros Sachtouris | @value.setter
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227 | e3d4d442 | Stavros Sachtouris | def value(self, newvalue): |
228 | e3d4d442 | Stavros Sachtouris | if newvalue == self.default: |
229 | e3d4d442 | Stavros Sachtouris | self._value = self.default |
230 | e3d4d442 | Stavros Sachtouris | return
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231 | e3d4d442 | Stavros Sachtouris | try:
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232 | e3d4d442 | Stavros Sachtouris | self._value = int(newvalue) |
233 | e3d4d442 | Stavros Sachtouris | except ValueError: |
234 | b696ed2c | Stavros Sachtouris | raiseCLIError(CLISyntaxError('IntArgument Error'),
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235 | fd5db045 | Stavros Sachtouris | details='Value %s not an int' % newvalue)
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236 | fd5db045 | Stavros Sachtouris | |
237 | e3d4d442 | Stavros Sachtouris | |
238 | c41a86b2 | Stavros Sachtouris | class VersionArgument(FlagArgument): |
239 | edb7fc1a | Stavros Sachtouris | """A flag argument with that prints current version"""
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240 | edb7fc1a | Stavros Sachtouris | |
241 | fd5db045 | Stavros Sachtouris | @property
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242 | c41a86b2 | Stavros Sachtouris | def value(self): |
243 | 439926dd | Stavros Sachtouris | """bool"""
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244 | c41a86b2 | Stavros Sachtouris | return super(self.__class__, self).value |
245 | fd5db045 | Stavros Sachtouris | |
246 | c41a86b2 | Stavros Sachtouris | @value.setter
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247 | c41a86b2 | Stavros Sachtouris | def value(self, newvalue): |
248 | c41a86b2 | Stavros Sachtouris | self._value = newvalue
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249 | c41a86b2 | Stavros Sachtouris | self.main()
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250 | c41a86b2 | Stavros Sachtouris | |
251 | c41a86b2 | Stavros Sachtouris | def main(self): |
252 | 439926dd | Stavros Sachtouris | """Print current version"""
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253 | c41a86b2 | Stavros Sachtouris | if self.value: |
254 | c41a86b2 | Stavros Sachtouris | import kamaki |
255 | fd5db045 | Stavros Sachtouris | print('kamaki %s' % kamaki.__version__)
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256 | fd5db045 | Stavros Sachtouris | |
257 | 9bdc89da | Stavros Sachtouris | |
258 | 0a0b9fb6 | Stavros Sachtouris | class KeyValueArgument(Argument): |
259 | edb7fc1a | Stavros Sachtouris | """A Value Argument that can be repeated
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260 | edb7fc1a | Stavros Sachtouris |
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261 | 439926dd | Stavros Sachtouris | :syntax: --<arg> key1=value1 --<arg> key2=value2 ...
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262 | edb7fc1a | Stavros Sachtouris | """
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263 | edb7fc1a | Stavros Sachtouris | |
264 | 0a0b9fb6 | Stavros Sachtouris | def __init__(self, help='', parsed_name=None, default=[]): |
265 | 0a0b9fb6 | Stavros Sachtouris | super(KeyValueArgument, self).__init__(-1, help, parsed_name, default) |
266 | f3e94e06 | Stavros Sachtouris | |
267 | fd5db045 | Stavros Sachtouris | @property
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268 | f3e94e06 | Stavros Sachtouris | def value(self): |
269 | 439926dd | Stavros Sachtouris | """
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270 | 439926dd | Stavros Sachtouris | :input: key=value
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271 | 439926dd | Stavros Sachtouris | :output: {'key1':'value1', 'key2':'value2', ...}
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272 | 439926dd | Stavros Sachtouris | """
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273 | f3e94e06 | Stavros Sachtouris | return super(KeyValueArgument, self).value |
274 | fd5db045 | Stavros Sachtouris | |
275 | fd5db045 | Stavros Sachtouris | @value.setter
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276 | f3e94e06 | Stavros Sachtouris | def value(self, keyvalue_pairs): |
277 | 0a0b9fb6 | Stavros Sachtouris | self._value = {}
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278 | f3e94e06 | Stavros Sachtouris | for pair in keyvalue_pairs: |
279 | fd5db045 | Stavros Sachtouris | key, sep, val = pair.partition('=')
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280 | f3e94e06 | Stavros Sachtouris | if not sep: |
281 | b696ed2c | Stavros Sachtouris | raiseCLIError(CLISyntaxError('Argument syntax error '),
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282 | 0a0b9fb6 | Stavros Sachtouris | details='%s is missing a "=" (usage: key1=val1 )\n' % pair)
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283 | 23803b28 | Stavros Sachtouris | self._value[key.strip()] = val.strip()
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284 | f3e94e06 | Stavros Sachtouris | |
285 | fd1f1d96 | Stavros Sachtouris | |
286 | fd1f1d96 | Stavros Sachtouris | class ProgressBarArgument(FlagArgument): |
287 | 439926dd | Stavros Sachtouris | """Manage a progress bar"""
|
288 | fd1f1d96 | Stavros Sachtouris | |
289 | fd1f1d96 | Stavros Sachtouris | def __init__(self, help='', parsed_name='', default=True): |
290 | fd1f1d96 | Stavros Sachtouris | self.suffix = '%(percent)d%%' |
291 | fd1f1d96 | Stavros Sachtouris | super(ProgressBarArgument, self).__init__(help, parsed_name, default) |
292 | fd1f1d96 | Stavros Sachtouris | try:
|
293 | 1d329d27 | Stavros Sachtouris | KamakiProgressBar |
294 | fd1f1d96 | Stavros Sachtouris | except NameError: |
295 | db8d1766 | Stavros Sachtouris | kloger.warning('no progress bar functionality')
|
296 | fd1f1d96 | Stavros Sachtouris | |
297 | 852a22e7 | Stavros Sachtouris | def clone(self): |
298 | 439926dd | Stavros Sachtouris | """Get a modifiable copy of this bar"""
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299 | 852a22e7 | Stavros Sachtouris | newarg = ProgressBarArgument( |
300 | 852a22e7 | Stavros Sachtouris | self.help,
|
301 | 852a22e7 | Stavros Sachtouris | self.parsed_name,
|
302 | 852a22e7 | Stavros Sachtouris | self.default)
|
303 | 852a22e7 | Stavros Sachtouris | newarg._value = self._value
|
304 | 852a22e7 | Stavros Sachtouris | return newarg
|
305 | 852a22e7 | Stavros Sachtouris | |
306 | fd1f1d96 | Stavros Sachtouris | def get_generator(self, message, message_len=25): |
307 | 439926dd | Stavros Sachtouris | """Get a generator to handle progress of the bar (gen.next())"""
|
308 | fd1f1d96 | Stavros Sachtouris | if self.value: |
309 | fd1f1d96 | Stavros Sachtouris | return None |
310 | fd1f1d96 | Stavros Sachtouris | try:
|
311 | 1d329d27 | Stavros Sachtouris | self.bar = KamakiProgressBar()
|
312 | fd1f1d96 | Stavros Sachtouris | except NameError: |
313 | 329753ae | Stavros Sachtouris | self.value = None |
314 | 329753ae | Stavros Sachtouris | return self.value |
315 | 329753ae | Stavros Sachtouris | self.bar.message = message.ljust(message_len)
|
316 | 852a22e7 | Stavros Sachtouris | self.bar.suffix = '%(percent)d%% - %(eta)ds' |
317 | a10f5561 | Stavros Sachtouris | self.bar.start()
|
318 | fd1f1d96 | Stavros Sachtouris | |
319 | 852a22e7 | Stavros Sachtouris | def progress_gen(n): |
320 | 852a22e7 | Stavros Sachtouris | for i in self.bar.iter(range(int(n))): |
321 | 852a22e7 | Stavros Sachtouris | yield
|
322 | 852a22e7 | Stavros Sachtouris | yield
|
323 | 852a22e7 | Stavros Sachtouris | return progress_gen
|
324 | fd1f1d96 | Stavros Sachtouris | |
325 | 852a22e7 | Stavros Sachtouris | def finish(self): |
326 | 439926dd | Stavros Sachtouris | """Stop progress bar, return terminal cursor to user"""
|
327 | 852a22e7 | Stavros Sachtouris | if self.value: |
328 | 852a22e7 | Stavros Sachtouris | return
|
329 | 852a22e7 | Stavros Sachtouris | mybar = getattr(self, 'bar', None) |
330 | 852a22e7 | Stavros Sachtouris | if mybar:
|
331 | 852a22e7 | Stavros Sachtouris | mybar.finish() |
332 | fd1f1d96 | Stavros Sachtouris | |
333 | fd1f1d96 | Stavros Sachtouris | |
334 | fd5db045 | Stavros Sachtouris | _arguments = dict(config=_config_arg,
|
335 | fd5db045 | Stavros Sachtouris | help=Argument(0, 'Show help message', ('-h', '--help')), |
336 | fd5db045 | Stavros Sachtouris | debug=FlagArgument('Include debug output', ('-d', '--debug')), |
337 | fd5db045 | Stavros Sachtouris | include=FlagArgument('Include protocol headers in the output',
|
338 | fd5db045 | Stavros Sachtouris | ('-i', '--include')), |
339 | fd5db045 | Stavros Sachtouris | silent=FlagArgument('Do not output anything', ('-s', '--silent')), |
340 | fd5db045 | Stavros Sachtouris | verbose=FlagArgument('More info at response', ('-v', '--verbose')), |
341 | fd5db045 | Stavros Sachtouris | version=VersionArgument('Print current version', ('-V', '--version')), |
342 | fd5db045 | Stavros Sachtouris | options=CmdLineConfigArgument(_config_arg, |
343 | fd5db045 | Stavros Sachtouris | 'Override a config value',
|
344 | fd5db045 | Stavros Sachtouris | ('-o', '--options')) |
345 | 9bdc89da | Stavros Sachtouris | ) |
346 | 439926dd | Stavros Sachtouris | """Initial command line interface arguments"""
|
347 | 439926dd | Stavros Sachtouris | |
348 | 439926dd | Stavros Sachtouris | |
349 | 439926dd | Stavros Sachtouris | """
|
350 | 439926dd | Stavros Sachtouris | Mechanism:
|
351 | 439926dd | Stavros Sachtouris | init_parser
|
352 | 439926dd | Stavros Sachtouris | parse_known_args
|
353 | 439926dd | Stavros Sachtouris | manage top-level user arguments input
|
354 | 439926dd | Stavros Sachtouris | find user-requested command
|
355 | 439926dd | Stavros Sachtouris | add command-specific arguments to dict
|
356 | 439926dd | Stavros Sachtouris | update_arguments
|
357 | 439926dd | Stavros Sachtouris | """
|
358 | 439926dd | Stavros Sachtouris | |
359 | 439926dd | Stavros Sachtouris | |
360 | 7c2247a0 | Stavros Sachtouris | class ArgumentParseManager(object): |
361 | e0da0f90 | Stavros Sachtouris | """Manage (initialize and update) an ArgumentParser object"""
|
362 | e0da0f90 | Stavros Sachtouris | |
363 | 5ad77121 | Stavros Sachtouris | parser = None
|
364 | 7c2247a0 | Stavros Sachtouris | _arguments = {} |
365 | b3dd8f4b | Stavros Sachtouris | _parser_modified = False
|
366 | b3dd8f4b | Stavros Sachtouris | _parsed = None
|
367 | b3dd8f4b | Stavros Sachtouris | _unparsed = None
|
368 | e0da0f90 | Stavros Sachtouris | |
369 | e0da0f90 | Stavros Sachtouris | def __init__(self, exe, arguments=None): |
370 | e0da0f90 | Stavros Sachtouris | """
|
371 | e0da0f90 | Stavros Sachtouris | :param exe: (str) the basic command (e.g. 'kamaki')
|
372 | e0da0f90 | Stavros Sachtouris |
|
373 | e0da0f90 | Stavros Sachtouris | :param arguments: (dict) if given, overrides the global _argument as
|
374 | e0da0f90 | Stavros Sachtouris | the parsers arguments specification
|
375 | e0da0f90 | Stavros Sachtouris | """
|
376 | 5ad77121 | Stavros Sachtouris | self.parser = ArgumentParser(add_help=False) |
377 | b3dd8f4b | Stavros Sachtouris | self.syntax = '%s <cmd_group> [<cmd_subbroup> ...] <cmd>' % exe |
378 | e0da0f90 | Stavros Sachtouris | if arguments:
|
379 | e0da0f90 | Stavros Sachtouris | self.arguments = arguments
|
380 | e0da0f90 | Stavros Sachtouris | else:
|
381 | e0da0f90 | Stavros Sachtouris | global _arguments
|
382 | e0da0f90 | Stavros Sachtouris | self.arguments = _arguments
|
383 | 7c2247a0 | Stavros Sachtouris | self.parse()
|
384 | e0da0f90 | Stavros Sachtouris | |
385 | e0da0f90 | Stavros Sachtouris | @property
|
386 | e0da0f90 | Stavros Sachtouris | def syntax(self): |
387 | b3dd8f4b | Stavros Sachtouris | """The command syntax (useful for help messages, descriptions, etc)"""
|
388 | e0da0f90 | Stavros Sachtouris | return self.parser.prog |
389 | e0da0f90 | Stavros Sachtouris | |
390 | e0da0f90 | Stavros Sachtouris | @syntax.setter
|
391 | e0da0f90 | Stavros Sachtouris | def syntax(self, new_syntax): |
392 | e0da0f90 | Stavros Sachtouris | self.parser.prog = new_syntax
|
393 | e0da0f90 | Stavros Sachtouris | |
394 | b3dd8f4b | Stavros Sachtouris | @property
|
395 | b3dd8f4b | Stavros Sachtouris | def arguments(self): |
396 | b3dd8f4b | Stavros Sachtouris | """(dict) arguments the parser should be aware of"""
|
397 | b3dd8f4b | Stavros Sachtouris | return self._arguments |
398 | b3dd8f4b | Stavros Sachtouris | |
399 | b3dd8f4b | Stavros Sachtouris | @arguments.setter
|
400 | b3dd8f4b | Stavros Sachtouris | def arguments(self, new_arguments): |
401 | b3dd8f4b | Stavros Sachtouris | if new_arguments:
|
402 | b3dd8f4b | Stavros Sachtouris | assert isinstance(new_arguments, dict) |
403 | b3dd8f4b | Stavros Sachtouris | self._arguments = new_arguments
|
404 | b3dd8f4b | Stavros Sachtouris | self.update_parser()
|
405 | b3dd8f4b | Stavros Sachtouris | |
406 | 7c2247a0 | Stavros Sachtouris | @property
|
407 | b3dd8f4b | Stavros Sachtouris | def parsed(self): |
408 | 7c2247a0 | Stavros Sachtouris | """(Namespace) parser-matched terms"""
|
409 | b3dd8f4b | Stavros Sachtouris | if self._parser_modified: |
410 | b3dd8f4b | Stavros Sachtouris | self.parse()
|
411 | b3dd8f4b | Stavros Sachtouris | return self._parsed |
412 | b3dd8f4b | Stavros Sachtouris | |
413 | b3dd8f4b | Stavros Sachtouris | @property
|
414 | b3dd8f4b | Stavros Sachtouris | def unparsed(self): |
415 | b3dd8f4b | Stavros Sachtouris | """(list) parser-unmatched terms"""
|
416 | b3dd8f4b | Stavros Sachtouris | if self._parser_modified: |
417 | b3dd8f4b | Stavros Sachtouris | self.parse()
|
418 | b3dd8f4b | Stavros Sachtouris | return self._unparsed |
419 | b3dd8f4b | Stavros Sachtouris | |
420 | e0da0f90 | Stavros Sachtouris | def update_parser(self, arguments=None): |
421 | e0da0f90 | Stavros Sachtouris | """Load argument specifications to parser
|
422 | e0da0f90 | Stavros Sachtouris |
|
423 | e0da0f90 | Stavros Sachtouris | :param arguments: if not given, update self.arguments instead
|
424 | e0da0f90 | Stavros Sachtouris | """
|
425 | e0da0f90 | Stavros Sachtouris | if not arguments: |
426 | b3dd8f4b | Stavros Sachtouris | arguments = self._arguments
|
427 | e0da0f90 | Stavros Sachtouris | |
428 | e0da0f90 | Stavros Sachtouris | for name, arg in arguments.items(): |
429 | e0da0f90 | Stavros Sachtouris | try:
|
430 | e0da0f90 | Stavros Sachtouris | arg.update_parser(self.parser, name)
|
431 | b3dd8f4b | Stavros Sachtouris | self._parser_modified = True |
432 | e0da0f90 | Stavros Sachtouris | except ArgumentError:
|
433 | e0da0f90 | Stavros Sachtouris | pass
|
434 | e0da0f90 | Stavros Sachtouris | |
435 | 7c2247a0 | Stavros Sachtouris | def update_arguments(self, new_arguments): |
436 | 7c2247a0 | Stavros Sachtouris | """Add to / update existing arguments
|
437 | 7c2247a0 | Stavros Sachtouris |
|
438 | 7c2247a0 | Stavros Sachtouris | :param new_arguments: (dict)
|
439 | 7c2247a0 | Stavros Sachtouris | """
|
440 | 7c2247a0 | Stavros Sachtouris | if new_arguments:
|
441 | 7c2247a0 | Stavros Sachtouris | assert isinstance(new_arguments, dict) |
442 | 7c2247a0 | Stavros Sachtouris | self._arguments.update(new_arguments)
|
443 | 7c2247a0 | Stavros Sachtouris | self.update_parser()
|
444 | 7c2247a0 | Stavros Sachtouris | |
445 | 120126f1 | Stavros Sachtouris | def parse(self, new_args=None): |
446 | 7c2247a0 | Stavros Sachtouris | """Do parse user input"""
|
447 | 120126f1 | Stavros Sachtouris | if new_args:
|
448 | 120126f1 | Stavros Sachtouris | self._parsed, unparsed = self.parser.parse_known_args(new_args) |
449 | 120126f1 | Stavros Sachtouris | else:
|
450 | 120126f1 | Stavros Sachtouris | self._parsed, unparsed = self.parser.parse_known_args() |
451 | b3dd8f4b | Stavros Sachtouris | for name, arg in self.arguments.items(): |
452 | b3dd8f4b | Stavros Sachtouris | arg.value = getattr(self._parsed, name, arg.default) |
453 | b3dd8f4b | Stavros Sachtouris | self._unparsed = []
|
454 | b3dd8f4b | Stavros Sachtouris | for term in unparsed: |
455 | b3dd8f4b | Stavros Sachtouris | self._unparsed += split_input(' \'%s\' ' % term) |
456 | b3dd8f4b | Stavros Sachtouris | self._parser_modified = False |