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#!/usr/bin/python
#
# eaudit - Lists installed packages with useflags.
#
# Copyright (c) 2006, Alastair Tse <alastair@liquidx.net>
# All rights reserved.
#
from optparse import OptionParser
from os.path import join
import os
import sys
import string
__doc__ = "Lists installed packages in human and machine readable form."
__version__ = '0.1'
PKG_DB = '/var/db/pkg'
PKG_WORLD = '/var/lib/portage/world'
def strip_ver(pkg_ver):
parts = pkg_ver.split('-')
for i in range(1, len(parts)):
if parts[i][0] in string.digits:
return '-'.join(parts[:i]), '-'.join(parts[i:])
return pkg_ver, ''
def world():
world_index = {}
for cat_pkg in open(PKG_WORLD).xreadlines():
cat, pkg = cat_pkg.strip().split('/')
if cat in world_index:
world_index[cat].add(pkg)
else:
world_index[cat] = set([pkg])
return world_index
def allpkgs():
""" An iterator that outputs all packages in the form:
category, package, version, path_to_db
"""
for cat in sorted(os.listdir(PKG_DB)):
for pkg_ver in sorted(os.listdir(join(PKG_DB, cat))):
pkg, ver = strip_ver(pkg_ver)
yield cat, pkg, ver, join(PKG_DB, cat, pkg_ver)
def use_status(path):
""" Returns a set of enable and disabled useflags for packages. """
use_flags = set(open(join(path, 'USE')).read().split())
iuse_flags = set(open(join(path, 'IUSE')).read().split())
use_enabled = sorted(use_flags & iuse_flags)
use_disabled = sorted(iuse_flags - set(use_enabled))
return use_enabled, use_disabled
def listpkgs(with_use = False, with_status = False, format = '%s %s %s'):
world_index = world()
for cat, pkg, ver, path in allpkgs():
output = ''
if with_status:
if pkg in world_index.get(cat, set()):
output += 'W '
else:
output += ' '
output += format % (cat, pkg, ver)
if with_use:
enabled, disabled = use_status(path)
output += ' ' + ' '.join(enabled + ['-%s' % u for u in disabled])
print output
def main(args = sys.argv[1:]):
parser = OptionParser(version = '%%prog %s' % __version__,
description = __doc__)
parser.add_option('-u', '--use', action='store_true',
help = 'List USE flags')
parser.add_option('-s', '--status', action='store_true',
help = 'Display WORLD status')
parser.add_option('-f', '--format', default='%s %s %s',
help = 'Display format for category, package, version. '
'Example: "%s/%s-%s" = "sys-apps/portage-2.1"')
options, params = parser.parse_args(args)
listpkgs(with_use = options.use, with_status = options.status,
format = options.format)
if __name__ == "__main__":
main()
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