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annotate makeitso/cli.py @ 61:57f9b0349192

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wait, its completely silly to print the variables since OptionParser already does that
author Jeff Hammel <jhammel@mozilla.com>
date Thu, 06 Jan 2011 17:14:22 -0800
parents da0d8c5c5157
children 30100690ad3f
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1 """
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2 command line parser for MakeItSo
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3 """
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4
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5 from optparse import OptionParser
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7 class MakeItSoCLI(object):
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8 """command line interface to a makeitso template"""
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9
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10 def __init__(self, template_class):
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11 self.template_class = template_class
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12
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13 def parser(self):
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14 """
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15 return a command line parser for the template
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16 """
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17 usage = '%prog [options] output [var1=value1] [var2=value2] [...]'
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18 description = getattr(self.template_class, 'description', None)
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19 parser = OptionParser(usage=usage, description=description)
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20
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21 # add the variables as options
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22 for variable in self.template_class.vars:
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23 parser.add_option('--%s' % variable.name, dest=variable.name,
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24 default=variable.default,
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25 help=variable.description)
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26 return parser
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28 def parse(self):
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29 parser = self.parser()
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30 options, args = parser.parse_args()
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32 # ensure output is given
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33 if len(args) != 1:
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34 parser.error("Please specify a single output destination")
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36 # template variables
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37 variables = dict([(key, value)
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38 for key, value in options.__dict__.items()
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39 if not key.startswith('_')])
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41 # instantiate the template
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42 template = self.template_class(output=args[0], variables=variables)
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43
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44 return template