Mercurial > repos > bcclaywell > argo_navis

comparison 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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-1:000000000000 0:d67268158946
1 from __future__ import absolute_import
2
3 from email.parser import FeedParser
4 import logging
5 import os
6
7 from pip.basecommand import Command
8 from pip.status_codes import SUCCESS, ERROR
9 from pip._vendor import pkg_resources
10
11
12 logger = logging.getLogger(__name__)
13
14
15 class ShowCommand(Command):
16 """Show information about one or more installed packages."""
17 name = 'show'
18 usage = """
19 %prog [options] <package> ..."""
20 summary = 'Show information about installed packages.'
21
22 def __init__(self, *args, **kw):
23 super(ShowCommand, self).__init__(*args, **kw)
24 self.cmd_opts.add_option(
25 '-f', '--files',
26 dest='files',
27 action='store_true',
28 default=False,
29 help='Show the full list of installed files for each package.')
30
31 self.parser.insert_option_group(0, self.cmd_opts)
32
33 def run(self, options, args):
34 if not args:
35 logger.warning('ERROR: Please provide a package name or names.')
36 return ERROR
37 query = args
38
39 results = search_packages_info(query)
40 if not print_results(results, options.files):
41 return ERROR
42 return SUCCESS
43
44
45 def search_packages_info(query):
46 """
47 Gather details from installed distributions. Print distribution name,
48 version, location, and installed files. Installed files requires a
49 pip generated 'installed-files.txt' in the distributions '.egg-info'
50 directory.
51 """
52 installed = dict(
53 [(p.project_name.lower(), p) for p in pkg_resources.working_set])
54 query_names = [name.lower() for name in query]
55 for dist in [installed[pkg] for pkg in query_names if pkg in installed]:
56 package = {
57 'name': dist.project_name,
58 'version': dist.version,
59 'location': dist.location,
60 'requires': [dep.project_name for dep in dist.requires()],
61 }
62 file_list = None
63 metadata = None
64 if isinstance(dist, pkg_resources.DistInfoDistribution):
65 # RECORDs should be part of .dist-info metadatas
66 if dist.has_metadata('RECORD'):
67 lines = dist.get_metadata_lines('RECORD')
68 paths = [l.split(',')[0] for l in lines]
69 paths = [os.path.join(dist.location, p) for p in paths]
70 file_list = [os.path.relpath(p, dist.location) for p in paths]
71
72 if dist.has_metadata('METADATA'):
73 metadata = dist.get_metadata('METADATA')
74 else:
75 # Otherwise use pip's log for .egg-info's
76 if dist.has_metadata('installed-files.txt'):
77 paths = dist.get_metadata_lines('installed-files.txt')
78 paths = [os.path.join(dist.egg_info, p) for p in paths]
79 file_list = [os.path.relpath(p, dist.location) for p in paths]
80 if dist.has_metadata('entry_points.txt'):
81 entry_points = dist.get_metadata_lines('entry_points.txt')
82 package['entry_points'] = entry_points
83
84 if dist.has_metadata('PKG-INFO'):
85 metadata = dist.get_metadata('PKG-INFO')
86
87 # @todo: Should pkg_resources.Distribution have a
88 # `get_pkg_info` method?
89 feed_parser = FeedParser()
90 feed_parser.feed(metadata)
91 pkg_info_dict = feed_parser.close()
92 for key in ('metadata-version', 'summary',
93 'home-page', 'author', 'author-email', 'license'):
94 package[key] = pkg_info_dict.get(key)
95
96 # use and short-circuit to check for None
97 package['files'] = file_list and sorted(file_list)
98 yield package
99
100
101 def print_results(distributions, list_all_files):
102 """
103 Print the informations from installed distributions found.
104 """
105 results_printed = False
106 for dist in distributions:
107 results_printed = True
108 logger.info("---")
109 logger.info("Metadata-Version: %s" % dist.get('metadata-version'))
110 logger.info("Name: %s" % dist['name'])
111 logger.info("Version: %s" % dist['version'])
112 logger.info("Summary: %s" % dist.get('summary'))
113 logger.info("Home-page: %s" % dist.get('home-page'))
114 logger.info("Author: %s" % dist.get('author'))
115 logger.info("Author-email: %s" % dist.get('author-email'))
116 logger.info("License: %s" % dist.get('license'))
117 logger.info("Location: %s" % dist['location'])
118 logger.info("Requires: %s" % ', '.join(dist['requires']))
119 if list_all_files:
120 logger.info("Files:")
121 if dist['files'] is not None:
122 for line in dist['files']:
123 logger.info(" %s" % line.strip())
124 else:
125 logger.info("Cannot locate installed-files.txt")
126 if 'entry_points' in dist:
127 logger.info("Entry-points:")
128 for line in dist['entry_points']:
129 logger.info(" %s" % line.strip())
130 return results_printed