Mercurial > repos > bcclaywell > argo_navis

annotate venv/lib/python2.7/site-packages/pip/commands/show.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 from email.parser import FeedParser
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4 import logging
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5 import os
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6
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7 from pip.basecommand import Command
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8 from pip.status_codes import SUCCESS, ERROR
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9 from pip._vendor import pkg_resources
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10
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11
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12 logger = logging.getLogger(__name__)
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13
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14
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15 class ShowCommand(Command):
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16 """Show information about one or more installed packages."""
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17 name = 'show'
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18 usage = """
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19 %prog [options] <package> ..."""
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20 summary = 'Show information about installed packages.'
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21
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22 def __init__(self, *args, **kw):
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23 super(ShowCommand, self).__init__(*args, **kw)
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24 self.cmd_opts.add_option(
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25 '-f', '--files',
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26 dest='files',
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27 action='store_true',
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28 default=False,
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29 help='Show the full list of installed files for each package.')
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30
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31 self.parser.insert_option_group(0, self.cmd_opts)
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32
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33 def run(self, options, args):
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34 if not args:
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35 logger.warning('ERROR: Please provide a package name or names.')
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36 return ERROR
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37 query = args
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38
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39 results = search_packages_info(query)
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40 if not print_results(results, options.files):
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41 return ERROR
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42 return SUCCESS
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43
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44
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45 def search_packages_info(query):
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46 """
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47 Gather details from installed distributions. Print distribution name,
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48 version, location, and installed files. Installed files requires a
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49 pip generated 'installed-files.txt' in the distributions '.egg-info'
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50 directory.
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51 """
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52 installed = dict(
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53 [(p.project_name.lower(), p) for p in pkg_resources.working_set])
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54 query_names = [name.lower() for name in query]
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55 for dist in [installed[pkg] for pkg in query_names if pkg in installed]:
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56 package = {
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57 'name': dist.project_name,
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58 'version': dist.version,
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59 'location': dist.location,
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60 'requires': [dep.project_name for dep in dist.requires()],
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61 }
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62 file_list = None
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63 metadata = None
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64 if isinstance(dist, pkg_resources.DistInfoDistribution):
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65 # RECORDs should be part of .dist-info metadatas
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66 if dist.has_metadata('RECORD'):
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67 lines = dist.get_metadata_lines('RECORD')
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68 paths = [l.split(',')[0] for l in lines]
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69 paths = [os.path.join(dist.location, p) for p in paths]
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70 file_list = [os.path.relpath(p, dist.location) for p in paths]
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71
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72 if dist.has_metadata('METADATA'):
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73 metadata = dist.get_metadata('METADATA')
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74 else:
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75 # Otherwise use pip's log for .egg-info's
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76 if dist.has_metadata('installed-files.txt'):
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77 paths = dist.get_metadata_lines('installed-files.txt')
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78 paths = [os.path.join(dist.egg_info, p) for p in paths]
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79 file_list = [os.path.relpath(p, dist.location) for p in paths]
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80 if dist.has_metadata('entry_points.txt'):
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81 entry_points = dist.get_metadata_lines('entry_points.txt')
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82 package['entry_points'] = entry_points
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83
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84 if dist.has_metadata('PKG-INFO'):
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85 metadata = dist.get_metadata('PKG-INFO')
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86
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87 # @todo: Should pkg_resources.Distribution have a
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88 # `get_pkg_info` method?
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89 feed_parser = FeedParser()
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90 feed_parser.feed(metadata)
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91 pkg_info_dict = feed_parser.close()
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92 for key in ('metadata-version', 'summary',
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93 'home-page', 'author', 'author-email', 'license'):
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94 package[key] = pkg_info_dict.get(key)
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95
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96 # use and short-circuit to check for None
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97 package['files'] = file_list and sorted(file_list)
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98 yield package
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99
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100
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101 def print_results(distributions, list_all_files):
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102 """
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103 Print the informations from installed distributions found.
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104 """
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105 results_printed = False
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106 for dist in distributions:
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107 results_printed = True
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108 logger.info("---")
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109 logger.info("Metadata-Version: %s" % dist.get('metadata-version'))
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110 logger.info("Name: %s" % dist['name'])
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111 logger.info("Version: %s" % dist['version'])
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112 logger.info("Summary: %s" % dist.get('summary'))
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113 logger.info("Home-page: %s" % dist.get('home-page'))
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114 logger.info("Author: %s" % dist.get('author'))
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115 logger.info("Author-email: %s" % dist.get('author-email'))
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116 logger.info("License: %s" % dist.get('license'))
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117 logger.info("Location: %s" % dist['location'])
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118 logger.info("Requires: %s" % ', '.join(dist['requires']))
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119 if list_all_files:
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120 logger.info("Files:")
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121 if dist['files'] is not None:
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122 for line in dist['files']:
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123 logger.info(" %s" % line.strip())
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124 else:
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125 logger.info("Cannot locate installed-files.txt")
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126 if 'entry_points' in dist:
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127 logger.info("Entry-points:")
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128 for line in dist['entry_points']:
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129 logger.info(" %s" % line.strip())
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130 return results_printed