Mercurial > repos > bcclaywell > argo_navis

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

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planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
author bcclaywell
date Mon, 12 Oct 2015 17:43:33 -0400
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1 from __future__ import absolute_import
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2
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3 import logging
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4 import re
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5
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6 import pip
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7 from pip.compat import stdlib_pkgs
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8 from pip.req import InstallRequirement
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9 from pip.utils import get_installed_distributions
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10 from pip._vendor import pkg_resources
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11
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12
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13 logger = logging.getLogger(__name__)
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14
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15 # packages to exclude from freeze output
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16 freeze_excludes = stdlib_pkgs + ['setuptools', 'pip', 'distribute']
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17
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18
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19 def freeze(
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20 requirement=None,
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21 find_links=None, local_only=None, user_only=None, skip_regex=None,
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22 find_tags=False,
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23 default_vcs=None,
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24 isolated=False):
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25 find_links = find_links or []
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26 skip_match = None
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27
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28 if skip_regex:
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29 skip_match = re.compile(skip_regex)
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30
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31 dependency_links = []
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32
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33 for dist in pkg_resources.working_set:
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34 if dist.has_metadata('dependency_links.txt'):
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35 dependency_links.extend(
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36 dist.get_metadata_lines('dependency_links.txt')
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37 )
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38 for link in find_links:
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39 if '#egg=' in link:
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40 dependency_links.append(link)
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41 for link in find_links:
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42 yield '-f %s' % link
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43 installations = {}
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44 for dist in get_installed_distributions(local_only=local_only,
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45 skip=freeze_excludes,
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46 user_only=user_only):
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47 req = pip.FrozenRequirement.from_dist(
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48 dist,
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49 dependency_links,
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50 find_tags=find_tags,
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51 )
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52 installations[req.name] = req
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53
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54 if requirement:
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55 with open(requirement) as req_file:
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56 for line in req_file:
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57 if (not line.strip() or
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58 line.strip().startswith('#') or
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59 (skip_match and skip_match.search(line)) or
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60 line.startswith((
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61 '-r', '--requirement',
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62 '-Z', '--always-unzip',
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63 '-f', '--find-links',
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64 '-i', '--index-url',
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65 '--extra-index-url'))):
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66 yield line.rstrip()
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67 continue
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68
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69 if line.startswith('-e') or line.startswith('--editable'):
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70 if line.startswith('-e'):
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71 line = line[2:].strip()
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72 else:
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73 line = line[len('--editable'):].strip().lstrip('=')
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74 line_req = InstallRequirement.from_editable(
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75 line,
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76 default_vcs=default_vcs,
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77 isolated=isolated,
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78 )
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79 else:
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80 line_req = InstallRequirement.from_line(
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81 line,
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82 isolated=isolated,
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83 )
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84
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85 if not line_req.name:
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86 logger.info(
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87 "Skipping line because it's not clear what it "
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88 "would install: %s",
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89 line.strip(),
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90 )
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91 logger.info(
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92 " (add #egg=PackageName to the URL to avoid"
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93 " this warning)"
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94 )
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95 elif line_req.name not in installations:
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96 logger.warning(
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97 "Requirement file contains %s, but that package is"
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98 " not installed",
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99 line.strip(),
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100 )
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101 else:
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102 yield str(installations[line_req.name]).rstrip()
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103 del installations[line_req.name]
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104
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105 yield(
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106 '## The following requirements were added by '
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107 'pip freeze:'
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108 )
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109 for installation in sorted(
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110 installations.values(), key=lambda x: x.name.lower()):
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111 yield str(installation).rstrip()