Mercurial > hg > MakeItSo
annotate makeitso/cli.py @ 61:57f9b0349192
wait, its completely silly to print the variables since OptionParser already does that
author | Jeff Hammel <jhammel@mozilla.com> |
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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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6 |
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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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27 |
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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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31 |
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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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35 |
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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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40 |
59 | 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 |