154 lines
5.7 KiB
Python
154 lines
5.7 KiB
Python
from __future__ import absolute_import
|
|
|
|
from email.parser import FeedParser
|
|
import logging
|
|
import os
|
|
|
|
from pip.basecommand import Command
|
|
from pip.status_codes import SUCCESS, ERROR
|
|
from pip._vendor import pkg_resources
|
|
|
|
|
|
logger = logging.getLogger(__name__)
|
|
|
|
|
|
class ShowCommand(Command):
|
|
"""Show information about one or more installed packages."""
|
|
name = 'show'
|
|
usage = """
|
|
%prog [options] <package> ..."""
|
|
summary = 'Show information about installed packages.'
|
|
|
|
def __init__(self, *args, **kw):
|
|
super(ShowCommand, self).__init__(*args, **kw)
|
|
self.cmd_opts.add_option(
|
|
'-f', '--files',
|
|
dest='files',
|
|
action='store_true',
|
|
default=False,
|
|
help='Show the full list of installed files for each package.')
|
|
|
|
self.parser.insert_option_group(0, self.cmd_opts)
|
|
|
|
def run(self, options, args):
|
|
if not args:
|
|
logger.warning('ERROR: Please provide a package name or names.')
|
|
return ERROR
|
|
query = args
|
|
|
|
results = search_packages_info(query)
|
|
if not print_results(results, options.files):
|
|
return ERROR
|
|
return SUCCESS
|
|
|
|
|
|
def search_packages_info(query):
|
|
"""
|
|
Gather details from installed distributions. Print distribution name,
|
|
version, location, and installed files. Installed files requires a
|
|
pip generated 'installed-files.txt' in the distributions '.egg-info'
|
|
directory.
|
|
"""
|
|
installed = dict(
|
|
[(p.project_name.lower(), p) for p in pkg_resources.working_set])
|
|
query_names = [name.lower() for name in query]
|
|
for dist in [installed[pkg] for pkg in query_names if pkg in installed]:
|
|
package = {
|
|
'name': dist.project_name,
|
|
'version': dist.version,
|
|
'location': dist.location,
|
|
'requires': [dep.project_name for dep in dist.requires()],
|
|
}
|
|
file_list = None
|
|
metadata = None
|
|
if isinstance(dist, pkg_resources.DistInfoDistribution):
|
|
# RECORDs should be part of .dist-info metadatas
|
|
if dist.has_metadata('RECORD'):
|
|
lines = dist.get_metadata_lines('RECORD')
|
|
paths = [l.split(',')[0] for l in lines]
|
|
paths = [os.path.join(dist.location, p) for p in paths]
|
|
file_list = [os.path.relpath(p, dist.location) for p in paths]
|
|
|
|
if dist.has_metadata('METADATA'):
|
|
metadata = dist.get_metadata('METADATA')
|
|
else:
|
|
# Otherwise use pip's log for .egg-info's
|
|
if dist.has_metadata('installed-files.txt'):
|
|
paths = dist.get_metadata_lines('installed-files.txt')
|
|
paths = [os.path.join(dist.egg_info, p) for p in paths]
|
|
file_list = [os.path.relpath(p, dist.location) for p in paths]
|
|
|
|
if dist.has_metadata('PKG-INFO'):
|
|
metadata = dist.get_metadata('PKG-INFO')
|
|
|
|
if dist.has_metadata('entry_points.txt'):
|
|
entry_points = dist.get_metadata_lines('entry_points.txt')
|
|
package['entry_points'] = entry_points
|
|
|
|
installer = None
|
|
if dist.has_metadata('INSTALLER'):
|
|
for line in dist.get_metadata_lines('INSTALLER'):
|
|
if line.strip():
|
|
installer = line.strip()
|
|
break
|
|
package['installer'] = installer
|
|
|
|
# @todo: Should pkg_resources.Distribution have a
|
|
# `get_pkg_info` method?
|
|
feed_parser = FeedParser()
|
|
feed_parser.feed(metadata)
|
|
pkg_info_dict = feed_parser.close()
|
|
for key in ('metadata-version', 'summary',
|
|
'home-page', 'author', 'author-email', 'license'):
|
|
package[key] = pkg_info_dict.get(key)
|
|
|
|
# It looks like FeedParser can not deal with repeated headers
|
|
classifiers = []
|
|
for line in metadata.splitlines():
|
|
if not line:
|
|
break
|
|
# Classifier: License :: OSI Approved :: MIT License
|
|
if line.startswith('Classifier: '):
|
|
classifiers.append(line[len('Classifier: '):])
|
|
package['classifiers'] = classifiers
|
|
|
|
if file_list:
|
|
package['files'] = sorted(file_list)
|
|
yield package
|
|
|
|
|
|
def print_results(distributions, list_all_files):
|
|
"""
|
|
Print the informations from installed distributions found.
|
|
"""
|
|
results_printed = False
|
|
for dist in distributions:
|
|
results_printed = True
|
|
logger.info("---")
|
|
logger.info("Metadata-Version: %s", dist.get('metadata-version'))
|
|
logger.info("Name: %s", dist['name'])
|
|
logger.info("Version: %s", dist['version'])
|
|
logger.info("Summary: %s", dist.get('summary'))
|
|
logger.info("Home-page: %s", dist.get('home-page'))
|
|
logger.info("Author: %s", dist.get('author'))
|
|
logger.info("Author-email: %s", dist.get('author-email'))
|
|
if dist['installer'] is not None:
|
|
logger.info("Installer: %s", dist['installer'])
|
|
logger.info("License: %s", dist.get('license'))
|
|
logger.info("Location: %s", dist['location'])
|
|
logger.info("Requires: %s", ', '.join(dist['requires']))
|
|
logger.info("Classifiers:")
|
|
for classifier in dist['classifiers']:
|
|
logger.info(" %s", classifier)
|
|
if list_all_files:
|
|
logger.info("Files:")
|
|
if 'files' in dist:
|
|
for line in dist['files']:
|
|
logger.info(" %s", line.strip())
|
|
else:
|
|
logger.info("Cannot locate installed-files.txt")
|
|
if 'entry_points' in dist:
|
|
logger.info("Entry-points:")
|
|
for line in dist['entry_points']:
|
|
logger.info(" %s", line.strip())
|
|
return results_printed
|