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annotate globalneighbors/cli.py @ 19:811adc9736eb

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add configuration for gunicorn
author Jeff Hammel <k0scist@gmail.com>
date Sun, 25 Jun 2017 15:43:45 -0700
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1 """
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2 command line interfaces
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3 """
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4
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5 import argparse
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6 from .read import read_cities
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7 from .schema import fields
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8
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9
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10 class ValidationParser(argparse.ArgumentParser):
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11 """CLI option parser"""
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13 def __init__(self, **kwargs):
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14 kwargs.setdefault('formatter_class', argparse.RawTextHelpFormatter)
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15 argparse.ArgumentParser.__init__(self, **kwargs)
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16 self.add_arguments()
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17 self.options = None
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19 def add_arguments(self):
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20 """Abstract Base Class: add your arguments here"""
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21
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22 def parse_args(self, *args, **kw):
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23 options = argparse.ArgumentParser.parse_args(self, *args, **kw)
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24 self.validate(options)
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25 self.options = options
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26 return options
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27
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28 def validate(self, options):
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29 """validate options"""
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32 class CitiesParser(ValidationParser):
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33
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34 def add_arguments(self):
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35 self.add_argument('cities',
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36 type=argparse.FileType('r'),
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37 help="path to TSV cities file, as documented in http://download.geonames.org/export/dump/")
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39 def read_cities(self):
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40 assert self.options
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41 return read_cities(self.options.cities, fields=fields)