Mercurial > repos > shellac > sam_consensus_v3
annotate env/lib/python3.9/site-packages/argcomplete/completers.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 # Copyright 2012-2019, Andrey Kislyuk and argcomplete contributors. |
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2 # Licensed under the Apache License. See https://github.com/kislyuk/argcomplete for more info. |
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3 |
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4 from __future__ import absolute_import, division, print_function, unicode_literals |
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5 |
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6 import os |
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7 import subprocess |
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8 from .compat import str, sys_encoding |
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9 |
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10 def _call(*args, **kwargs): |
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11 try: |
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12 return subprocess.check_output(*args, **kwargs).decode(sys_encoding).splitlines() |
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13 except subprocess.CalledProcessError: |
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14 return [] |
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15 |
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16 class ChoicesCompleter(object): |
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17 def __init__(self, choices): |
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18 self.choices = choices |
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19 |
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20 def _convert(self, choice): |
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21 if isinstance(choice, bytes): |
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22 choice = choice.decode(sys_encoding) |
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23 if not isinstance(choice, str): |
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24 choice = str(choice) |
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25 return choice |
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26 |
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27 def __call__(self, **kwargs): |
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28 return (self._convert(c) for c in self.choices) |
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29 |
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30 EnvironCompleter = ChoicesCompleter(os.environ) |
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31 |
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32 class FilesCompleter(object): |
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33 """ |
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34 File completer class, optionally takes a list of allowed extensions |
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35 """ |
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36 |
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37 def __init__(self, allowednames=(), directories=True): |
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38 # Fix if someone passes in a string instead of a list |
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39 if isinstance(allowednames, (str, bytes)): |
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40 allowednames = [allowednames] |
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41 |
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42 self.allowednames = [x.lstrip("*").lstrip(".") for x in allowednames] |
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43 self.directories = directories |
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44 |
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45 def __call__(self, prefix, **kwargs): |
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46 completion = [] |
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47 if self.allowednames: |
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48 if self.directories: |
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49 files = _call(["bash", "-c", "compgen -A directory -- '{p}'".format(p=prefix)]) |
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50 completion += [f + "/" for f in files] |
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51 for x in self.allowednames: |
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52 completion += _call(["bash", "-c", "compgen -A file -X '!*.{0}' -- '{p}'".format(x, p=prefix)]) |
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53 else: |
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54 completion += _call(["bash", "-c", "compgen -A file -- '{p}'".format(p=prefix)]) |
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55 anticomp = _call(["bash", "-c", "compgen -A directory -- '{p}'".format(p=prefix)]) |
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56 completion = list(set(completion) - set(anticomp)) |
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57 |
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58 if self.directories: |
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59 completion += [f + "/" for f in anticomp] |
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60 return completion |
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61 |
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62 class _FilteredFilesCompleter(object): |
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63 def __init__(self, predicate): |
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64 """ |
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65 Create the completer |
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66 |
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67 A predicate accepts as its only argument a candidate path and either |
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68 accepts it or rejects it. |
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69 """ |
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70 assert predicate, "Expected a callable predicate" |
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71 self.predicate = predicate |
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72 |
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73 def __call__(self, prefix, **kwargs): |
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74 """ |
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75 Provide completions on prefix |
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76 """ |
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77 target_dir = os.path.dirname(prefix) |
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78 try: |
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79 names = os.listdir(target_dir or ".") |
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80 except: |
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81 return # empty iterator |
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82 incomplete_part = os.path.basename(prefix) |
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83 # Iterate on target_dir entries and filter on given predicate |
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84 for name in names: |
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85 if not name.startswith(incomplete_part): |
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86 continue |
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87 candidate = os.path.join(target_dir, name) |
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88 if not self.predicate(candidate): |
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89 continue |
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90 yield candidate + "/" if os.path.isdir(candidate) else candidate |
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91 |
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92 class DirectoriesCompleter(_FilteredFilesCompleter): |
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93 def __init__(self): |
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94 _FilteredFilesCompleter.__init__(self, predicate=os.path.isdir) |
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95 |
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96 class SuppressCompleter(object): |
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97 """ |
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98 A completer used to suppress the completion of specific arguments |
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99 """ |
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100 |
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101 def __init__(self): |
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102 pass |
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103 |
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104 def suppress(self): |
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105 """ |
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106 Decide if the completion should be suppressed |
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107 """ |
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108 return True |