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# Copyright 1999-2013 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
from __future__ import unicode_literals
import collections
from itertools import chain
import sys
from portage import _encodings, _unicode_encode
from portage.output import red
from portage.util import cmp_sort_key
from portage.output import blue
class UseFlagDisplay(object):
__slots__ = ('name', 'enabled', 'forced')
def __init__(self, name, enabled, forced):
self.name = name
self.enabled = enabled
self.forced = forced
def __str__(self):
s = self.name
if self.enabled:
s = red(s)
else:
s = '-' + s
s = blue(s)
if self.forced:
s = '(%s)' % s
return s
if sys.hexversion < 0x3000000:
__unicode__ = __str__
def __str__(self):
return _unicode_encode(self.__unicode__(),
encoding=_encodings['content'])
def _cmp_combined(a, b):
"""
Sort by name, combining enabled and disabled flags.
"""
return (a.name > b.name) - (a.name < b.name)
sort_combined = cmp_sort_key(_cmp_combined)
del _cmp_combined
def _cmp_separated(a, b):
"""
Sort by name, separating enabled flags from disabled flags.
"""
enabled_diff = b.enabled - a.enabled
if enabled_diff:
return enabled_diff
return (a.name > b.name) - (a.name < b.name)
sort_separated = cmp_sort_key(_cmp_separated)
del _cmp_separated
_flag_info = collections.namedtuple('_flag_info', ('flag', 'display'))
def pkg_use_display(pkg, opts, modified_use=None):
settings = pkg.root_config.settings
use_expand = pkg.use.expand
use_expand_hidden = pkg.use.expand_hidden
alphabetical_use = '--alphabetical' in opts
forced_flags = set(chain(pkg.use.force,
pkg.use.mask))
if modified_use is None:
use = set(pkg.use.enabled)
else:
use = set(modified_use)
use.discard(settings.get('ARCH'))
use_expand_flags = set()
use_enabled = {}
use_disabled = {}
for varname in use_expand:
flag_prefix = varname.lower() + "_"
for f in use:
if f.startswith(flag_prefix):
use_expand_flags.add(f)
use_enabled.setdefault(
varname.upper(), []).append(
_flag_info(f, f[len(flag_prefix):]))
for f in pkg.iuse.all:
if f.startswith(flag_prefix):
use_expand_flags.add(f)
if f not in use:
use_disabled.setdefault(
varname.upper(), []).append(
_flag_info(f, f[len(flag_prefix):]))
var_order = set(use_enabled)
var_order.update(use_disabled)
var_order = sorted(var_order)
var_order.insert(0, 'USE')
use.difference_update(use_expand_flags)
use_enabled['USE'] = list(_flag_info(f, f) for f in use)
use_disabled['USE'] = []
for f in pkg.iuse.all:
if f not in use and \
f not in use_expand_flags:
use_disabled['USE'].append(_flag_info(f, f))
flag_displays = []
for varname in var_order:
if varname.lower() in use_expand_hidden:
continue
flags = []
for f in use_enabled.get(varname, []):
flags.append(UseFlagDisplay(f.display, True, f.flag in forced_flags))
for f in use_disabled.get(varname, []):
flags.append(UseFlagDisplay(f.display, False, f.flag in forced_flags))
if alphabetical_use:
flags.sort(key=UseFlagDisplay.sort_combined)
else:
flags.sort(key=UseFlagDisplay.sort_separated)
# Use unicode_literals to force unicode format string so
# that UseFlagDisplay.__unicode__() is called in python2.
flag_displays.append('%s="%s"' % (varname,
' '.join("%s" % (f,) for f in flags)))
return ' '.join(flag_displays)
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