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annotate planemo/lib/python3.7/site-packages/virtualenv/activation/via_template.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 os
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4 import sys
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5 from abc import ABCMeta, abstractmethod
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6
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7 from six import add_metaclass
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8
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9 from virtualenv.util.six import ensure_text
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10
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11 from .activator import Activator
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12
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13 if sys.version_info >= (3, 7):
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14 from importlib.resources import read_text
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15 else:
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16 from importlib_resources import read_text
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17
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18
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19 @add_metaclass(ABCMeta)
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20 class ViaTemplateActivator(Activator):
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21 @abstractmethod
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22 def templates(self):
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23 raise NotImplementedError
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24
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25 def generate(self, creator):
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26 dest_folder = creator.bin_dir
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27 replacements = self.replacements(creator, dest_folder)
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28 generated = self._generate(replacements, self.templates(), dest_folder, creator)
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29 if self.flag_prompt is not None:
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30 creator.pyenv_cfg["prompt"] = self.flag_prompt
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31 return generated
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32
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33 def replacements(self, creator, dest_folder):
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34 return {
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35 "__VIRTUAL_PROMPT__": "" if self.flag_prompt is None else self.flag_prompt,
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36 "__VIRTUAL_ENV__": ensure_text(str(creator.dest)),
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37 "__VIRTUAL_NAME__": creator.env_name,
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38 "__BIN_NAME__": ensure_text(str(creator.bin_dir.relative_to(creator.dest))),
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39 "__PATH_SEP__": ensure_text(os.pathsep),
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40 }
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41
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42 def _generate(self, replacements, templates, to_folder, creator):
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43 generated = []
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44 for template in templates:
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45 text = self.instantiate_template(replacements, template, creator)
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46 dest = to_folder / self.as_name(template)
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47 dest.write_text(text, encoding="utf-8")
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48 generated.append(dest)
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49 return generated
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50
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51 def as_name(self, template):
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52 return template.name
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53
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54 def instantiate_template(self, replacements, template, creator):
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55 # read text and do replacements
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56 text = read_text(self.__module__, str(template), encoding="utf-8", errors="strict")
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57 for key, value in replacements.items():
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58 value = self._repr_unicode(creator, value)
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59 text = text.replace(key, value)
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60 return text
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61
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62 @staticmethod
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63 def _repr_unicode(creator, value):
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64 # by default we just let it be unicode
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65 return value