Mercurial > repos > shellac > sam_consensus_v3
annotate env/lib/python3.9/site-packages/virtualenv/activation/via_template.py @ 0:4f3585e2f14b draft default tip
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
author | shellac |
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date | Mon, 22 Mar 2021 18:12:50 +0000 |
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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_binary |
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15 else: |
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16 from importlib_resources import read_binary |
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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 # use write_bytes to avoid platform specific line normalization (\n -> \r\n) |
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48 dest.write_bytes(text.encode("utf-8")) |
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49 generated.append(dest) |
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50 return generated |
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51 |
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52 def as_name(self, template): |
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53 return template.name |
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54 |
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55 def instantiate_template(self, replacements, template, creator): |
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56 # read content as binary to avoid platform specific line normalization (\n -> \r\n) |
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57 binary = read_binary(self.__module__, str(template)) |
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58 text = binary.decode("utf-8", errors="strict") |
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59 for key, value in replacements.items(): |
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60 value = self._repr_unicode(creator, value) |
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61 text = text.replace(key, value) |
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62 return text |
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63 |
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64 @staticmethod |
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65 def _repr_unicode(creator, value): |
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66 # by default we just let it be unicode |
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67 return value |