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annotate planemo/lib/python3.7/site-packages/virtualenv/config/convert.py @ 1:56ad4e20f292 draft

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"planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
author guerler
date Fri, 31 Jul 2020 00:32:28 -0400
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1 from __future__ import absolute_import, unicode_literals
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2
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3 import logging
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4 import os
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5
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6
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7 class TypeData(object):
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8 def __init__(self, default_type, as_type):
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9 self.default_type = default_type
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10 self.as_type = as_type
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11
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12 def __repr__(self):
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13 return "{}(base={}, as={})".format(self.__class__.__name__, self.default_type, self.as_type)
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14
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15 def convert(self, value):
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16 return self.default_type(value)
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17
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18
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19 class BoolType(TypeData):
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20 BOOLEAN_STATES = {
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21 "1": True,
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22 "yes": True,
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23 "true": True,
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24 "on": True,
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25 "0": False,
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26 "no": False,
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27 "false": False,
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28 "off": False,
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29 }
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30
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31 def convert(self, value):
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32 if value.lower() not in self.BOOLEAN_STATES:
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33 raise ValueError("Not a boolean: %s" % value)
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34 return self.BOOLEAN_STATES[value.lower()]
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35
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36
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37 class NoneType(TypeData):
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38 def convert(self, value):
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39 if not value:
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40 return None
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41 return str(value)
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42
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43
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44 class ListType(TypeData):
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45 def _validate(self):
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46 """"""
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47
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48 def convert(self, value, flatten=True):
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49 if isinstance(value, (str, bytes)):
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50 value = filter(None, [x.strip() for x in value.splitlines()])
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51 values = list(value)
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52 result = []
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53 for value in values:
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54 sub_values = value.split(os.pathsep)
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55 result.extend(sub_values)
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56 converted = [self.as_type(i) for i in result]
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57 return converted
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58
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59
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60 def convert(value, as_type, source):
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61 """Convert the value as a given type where the value comes from the given source"""
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62 try:
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63 return as_type.convert(value)
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64 except Exception as exception:
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65 logging.warning("%s failed to convert %r as %r because %r", source, value, as_type, exception)
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66 raise
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69 _CONVERT = {bool: BoolType, type(None): NoneType, list: ListType}
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71
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72 def get_type(action):
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73 default_type = type(action.default)
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74 as_type = default_type if action.type is None else action.type
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75 return _CONVERT.get(default_type, TypeData)(default_type, as_type)
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76
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77
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78 __all__ = (
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79 "convert",
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80 "get_type",
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81 )