Mercurial > repos > guerler > springsuite

annotate planemo/lib/python3.7/site-packages/pip/_internal/operations/freeze.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
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1 from __future__ import absolute_import
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2
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3 import collections
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4 import logging
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5 import os
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6 import re
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7
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8 from pip._vendor import six
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9 from pip._vendor.packaging.utils import canonicalize_name
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10 from pip._vendor.pkg_resources import RequirementParseError
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11
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12 from pip._internal.exceptions import BadCommand, InstallationError
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13 from pip._internal.req.constructors import (
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14 install_req_from_editable, install_req_from_line,
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15 )
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16 from pip._internal.req.req_file import COMMENT_RE
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17 from pip._internal.utils.misc import (
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18 dist_is_editable, get_installed_distributions,
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19 )
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20 from pip._internal.utils.typing import MYPY_CHECK_RUNNING
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21
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22 if MYPY_CHECK_RUNNING:
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23 from typing import (
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24 Iterator, Optional, List, Container, Set, Dict, Tuple, Iterable, Union
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25 )
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26 from pip._internal.cache import WheelCache
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27 from pip._vendor.pkg_resources import (
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28 Distribution, Requirement
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29 )
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30
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31 RequirementInfo = Tuple[Optional[Union[str, Requirement]], bool, List[str]]
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32
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33
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34 logger = logging.getLogger(__name__)
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35
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36
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37 def freeze(
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38 requirement=None, # type: Optional[List[str]]
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39 find_links=None, # type: Optional[List[str]]
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40 local_only=None, # type: Optional[bool]
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41 user_only=None, # type: Optional[bool]
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42 paths=None, # type: Optional[List[str]]
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43 skip_regex=None, # type: Optional[str]
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44 isolated=False, # type: bool
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45 wheel_cache=None, # type: Optional[WheelCache]
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46 exclude_editable=False, # type: bool
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47 skip=() # type: Container[str]
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48 ):
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49 # type: (...) -> Iterator[str]
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50 find_links = find_links or []
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51 skip_match = None
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52
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53 if skip_regex:
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54 skip_match = re.compile(skip_regex).search
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55
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56 for link in find_links:
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57 yield '-f %s' % link
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58 installations = {} # type: Dict[str, FrozenRequirement]
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59 for dist in get_installed_distributions(local_only=local_only,
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60 skip=(),
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61 user_only=user_only,
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62 paths=paths):
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63 try:
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64 req = FrozenRequirement.from_dist(dist)
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65 except RequirementParseError as exc:
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66 # We include dist rather than dist.project_name because the
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67 # dist string includes more information, like the version and
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68 # location. We also include the exception message to aid
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69 # troubleshooting.
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70 logger.warning(
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71 'Could not generate requirement for distribution %r: %s',
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72 dist, exc
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73 )
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74 continue
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75 if exclude_editable and req.editable:
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76 continue
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77 installations[req.name] = req
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78
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79 if requirement:
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80 # the options that don't get turned into an InstallRequirement
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81 # should only be emitted once, even if the same option is in multiple
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82 # requirements files, so we need to keep track of what has been emitted
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83 # so that we don't emit it again if it's seen again
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84 emitted_options = set() # type: Set[str]
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85 # keep track of which files a requirement is in so that we can
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86 # give an accurate warning if a requirement appears multiple times.
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87 req_files = collections.defaultdict(list) # type: Dict[str, List[str]]
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88 for req_file_path in requirement:
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89 with open(req_file_path) as req_file:
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90 for line in req_file:
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91 if (not line.strip() or
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92 line.strip().startswith('#') or
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93 (skip_match and skip_match(line)) or
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94 line.startswith((
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95 '-r', '--requirement',
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96 '-Z', '--always-unzip',
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97 '-f', '--find-links',
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98 '-i', '--index-url',
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99 '--pre',
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100 '--trusted-host',
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101 '--process-dependency-links',
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102 '--extra-index-url'))):
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103 line = line.rstrip()
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104 if line not in emitted_options:
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105 emitted_options.add(line)
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106 yield line
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107 continue
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108
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109 if line.startswith('-e') or line.startswith('--editable'):
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110 if line.startswith('-e'):
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111 line = line[2:].strip()
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112 else:
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113 line = line[len('--editable'):].strip().lstrip('=')
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114 line_req = install_req_from_editable(
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115 line,
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116 isolated=isolated,
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117 wheel_cache=wheel_cache,
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118 )
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119 else:
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120 line_req = install_req_from_line(
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121 COMMENT_RE.sub('', line).strip(),
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122 isolated=isolated,
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123 wheel_cache=wheel_cache,
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124 )
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125
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126 if not line_req.name:
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127 logger.info(
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128 "Skipping line in requirement file [%s] because "
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129 "it's not clear what it would install: %s",
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130 req_file_path, line.strip(),
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131 )
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132 logger.info(
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133 " (add #egg=PackageName to the URL to avoid"
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134 " this warning)"
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135 )
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136 elif line_req.name not in installations:
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137 # either it's not installed, or it is installed
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138 # but has been processed already
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139 if not req_files[line_req.name]:
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140 logger.warning(
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141 "Requirement file [%s] contains %s, but "
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142 "package %r is not installed",
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143 req_file_path,
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144 COMMENT_RE.sub('', line).strip(), line_req.name
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145 )
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146 else:
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147 req_files[line_req.name].append(req_file_path)
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148 else:
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149 yield str(installations[line_req.name]).rstrip()
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150 del installations[line_req.name]
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151 req_files[line_req.name].append(req_file_path)
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152
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153 # Warn about requirements that were included multiple times (in a
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154 # single requirements file or in different requirements files).
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155 for name, files in six.iteritems(req_files):
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156 if len(files) > 1:
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157 logger.warning("Requirement %s included multiple times [%s]",
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158 name, ', '.join(sorted(set(files))))
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159
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160 yield(
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161 '## The following requirements were added by '
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162 'pip freeze:'
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163 )
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164 for installation in sorted(
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165 installations.values(), key=lambda x: x.name.lower()):
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166 if canonicalize_name(installation.name) not in skip:
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167 yield str(installation).rstrip()
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168
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169
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170 def get_requirement_info(dist):
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171 # type: (Distribution) -> RequirementInfo
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172 """
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173 Compute and return values (req, editable, comments) for use in
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174 FrozenRequirement.from_dist().
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175 """
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176 if not dist_is_editable(dist):
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177 return (None, False, [])
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178
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179 location = os.path.normcase(os.path.abspath(dist.location))
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180
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181 from pip._internal.vcs import vcs, RemoteNotFoundError
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182 vcs_backend = vcs.get_backend_for_dir(location)
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183
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184 if vcs_backend is None:
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185 req = dist.as_requirement()
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186 logger.debug(
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187 'No VCS found for editable requirement "%s" in: %r', req,
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188 location,
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189 )
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190 comments = [
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191 '# Editable install with no version control ({})'.format(req)
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192 ]
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193 return (location, True, comments)
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194
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195 try:
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196 req = vcs_backend.get_src_requirement(location, dist.project_name)
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197 except RemoteNotFoundError:
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198 req = dist.as_requirement()
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199 comments = [
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200 '# Editable {} install with no remote ({})'.format(
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201 type(vcs_backend).__name__, req,
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202 )
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203 ]
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204 return (location, True, comments)
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205
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206 except BadCommand:
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207 logger.warning(
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208 'cannot determine version of editable source in %s '
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209 '(%s command not found in path)',
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210 location,
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211 vcs_backend.name,
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212 )
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213 return (None, True, [])
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214
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215 except InstallationError as exc:
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216 logger.warning(
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217 "Error when trying to get requirement for VCS system %s, "
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218 "falling back to uneditable format", exc
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219 )
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220 else:
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221 if req is not None:
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222 return (req, True, [])
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223
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224 logger.warning(
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225 'Could not determine repository location of %s', location
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226 )
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227 comments = ['## !! Could not determine repository location']
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228
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229 return (None, False, comments)
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230
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231
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232 class FrozenRequirement(object):
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233 def __init__(self, name, req, editable, comments=()):
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234 # type: (str, Union[str, Requirement], bool, Iterable[str]) -> None
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235 self.name = name
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236 self.req = req
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237 self.editable = editable
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238 self.comments = comments
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239
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240 @classmethod
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241 def from_dist(cls, dist):
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242 # type: (Distribution) -> FrozenRequirement
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243 req, editable, comments = get_requirement_info(dist)
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244 if req is None:
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245 req = dist.as_requirement()
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246
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247 return cls(dist.project_name, req, editable, comments=comments)
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248
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249 def __str__(self):
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250 req = self.req
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251 if self.editable:
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252 req = '-e %s' % req
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253 return '\n'.join(list(self.comments) + [str(req)]) + '\n'