Mercurial > repos > bcclaywell > argo_navis

annotate venv/lib/python2.7/site-packages/pip/req/req_file.py @ 0:d67268158946 draft

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planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
author bcclaywell
date Mon, 12 Oct 2015 17:43:33 -0400
parents
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
0
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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1 from __future__ import absolute_import
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2
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3 import os
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4 import re
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5
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6 from pip._vendor.six.moves.urllib import parse as urllib_parse
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7
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8 from pip.download import get_file_content
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9 from pip.req.req_install import InstallRequirement
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10 from pip.utils import normalize_name
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11
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12 _scheme_re = re.compile(r'^(http|https|file):', re.I)
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13
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14
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15 def _remove_prefixes(line, short_prefix, long_prefix):
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16 if line.startswith(short_prefix):
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17 return line[len(short_prefix):].lstrip()
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18 else:
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19 return _remove_prefix(line, long_prefix)
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20
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21
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22 def _remove_prefix(line, prefix):
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23 """Remove the prefix and eventually one '=' or spaces"""
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24 return re.sub(r'\s*=?\s*', '', line[len(prefix):])
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25
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26
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27 def parse_requirements(filename, finder=None, comes_from=None, options=None,
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28 session=None):
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29 if session is None:
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30 raise TypeError(
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31 "parse_requirements() missing 1 required keyword argument: "
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32 "'session'"
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33 )
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34
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35 skip_match = None
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36 skip_regex = options.skip_requirements_regex if options else None
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37 if skip_regex:
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38 skip_match = re.compile(skip_regex)
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39 reqs_file_dir = os.path.dirname(os.path.abspath(filename))
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40 filename, content = get_file_content(
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41 filename,
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42 comes_from=comes_from,
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43 session=session,
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44 )
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45 for line_number, line in enumerate(content.splitlines(), 1):
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46 line = line.strip()
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47
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48 # Remove comments from file and all spaces before it
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49 line = re.sub(r"(^|\s)+#.*$", "", line)
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50
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51 if not line:
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52 continue
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53 if skip_match and skip_match.search(line):
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54 continue
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55 if line.startswith(('-r', '--requirement')):
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56 req_url = _remove_prefixes(line, '-r', '--requirement')
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57 if _scheme_re.search(filename):
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58 # Relative to a URL
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59 req_url = urllib_parse.urljoin(filename, req_url)
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60 elif not _scheme_re.search(req_url):
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61 req_url = os.path.join(os.path.dirname(filename), req_url)
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62 for item in parse_requirements(
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63 req_url, finder,
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64 comes_from=filename,
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65 options=options,
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66 session=session):
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67 yield item
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68 elif line.startswith(('-Z', '--always-unzip')):
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69 # No longer used, but previously these were used in
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70 # requirement files, so we'll ignore.
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71 pass
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72 elif line.startswith(('-f', '--find-links')):
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73 find_links = _remove_prefixes(line, '-f', '--find-links')
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74 # FIXME: it would be nice to keep track of the source of
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75 # the find_links:
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76 # support a find-links local path relative to a requirements file
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77 relative_to_reqs_file = os.path.join(reqs_file_dir, find_links)
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78 if os.path.exists(relative_to_reqs_file):
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79 find_links = relative_to_reqs_file
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80 if finder:
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81 finder.find_links.append(find_links)
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82 elif line.startswith(('-i', '--index-url')):
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83 index_url = _remove_prefixes(line, '-i', '--index-url')
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84 if finder:
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85 finder.index_urls = [index_url]
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86 elif line.startswith('--extra-index-url'):
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87 line = _remove_prefix(line, '--extra-index-url')
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88 if finder:
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89 finder.index_urls.append(line)
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90 elif line.startswith('--use-wheel'):
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91 # Default in 1.5
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92 pass
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93 elif line.startswith('--no-use-wheel'):
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94 if finder:
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95 finder.use_wheel = False
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96 elif line.startswith('--no-index'):
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97 if finder:
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98 finder.index_urls = []
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99 elif line.startswith("--allow-external"):
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100 line = _remove_prefix(line, '--allow-external')
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101 if finder:
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102 finder.allow_external |= set([normalize_name(line).lower()])
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103 elif line.startswith("--allow-all-external"):
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104 if finder:
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105 finder.allow_all_external = True
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106 # Remove in 7.0
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107 elif line.startswith("--no-allow-external"):
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108 pass
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109 # Remove in 7.0
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110 elif line.startswith("--no-allow-insecure"):
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111 pass
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112 # Remove after 7.0
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113 elif line.startswith("--allow-insecure"):
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114 line = _remove_prefix(line, '--allow-insecure')
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115 if finder:
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116 finder.allow_unverified |= set([normalize_name(line).lower()])
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117 elif line.startswith("--allow-unverified"):
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118 line = _remove_prefix(line, '--allow-unverified')
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119 if finder:
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120 finder.allow_unverified |= set([normalize_name(line).lower()])
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121 else:
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122 comes_from = '-r %s (line %s)' % (filename, line_number)
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123 if line.startswith(('-e', '--editable')):
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124 editable = _remove_prefixes(line, '-e', '--editable')
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125 req = InstallRequirement.from_editable(
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126 editable,
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127 comes_from=comes_from,
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128 default_vcs=options.default_vcs if options else None,
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129 isolated=options.isolated_mode if options else False,
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130 )
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131 else:
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132 req = InstallRequirement.from_line(
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133 line,
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134 comes_from,
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135 isolated=options.isolated_mode if options else False,
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136 )
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137 yield req