1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
|
#!/usr/bin/python
#
# Copyright(c) 2010, Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
#
"""Provides support functions for USE flag settings and analysis"""
__all__ = (
'get_iuse',
'get_installed_use',
'reduce_flag',
'reduce_flags',
'filter_flags',
'get_all_cpv_use',
'get_flags'
)
#import sys
from portage.api.settings import default_settings
import portage
def get_iuse(cpv, root=None, settings=default_settings):
"""Gets the current IUSE flags from the tree
To be used when a gentoolkit package object is not needed
@type: cpv: string
@param cpv: cat/pkg-ver
@type root: string
@param root: tree root to use
@param settings: optional portage config settings instance.
defaults to portage.api.settings.default_settings
@rtype list
@returns [] or the list of IUSE flags
"""
if root is None:
root = settings.settings["ROOT"]
try:
return settings.portdb[root].aux_get(cpv, ["IUSE"])[0].split()
except:
return []
def get_installed_use(cpv, use="USE", root=None, settings=default_settings):
"""Gets the installed USE flags from the VARDB
To be used when a gentoolkit package object is not needed
@type: cpv: string
@param cpv: cat/pkg-ver
@type use: string
@param use: 1 of ["USE", "PKGUSE"]
@type root: string
@param root: tree root to use
@param settings: optional portage config settings instance.
defaults to portage.api.settings.default_settings
@rtype list
@returns [] or the list of IUSE flags
"""
if root is None:
root = settings.settings["ROOT"]
return settings.vardb[root].aux_get(cpv, [use])[0].split()
def reduce_flag(flag):
"""Absolute value function for a USE flag
@type flag: string
@param flag: the use flag to absolute.
@rtype: string
@return absolute USE flag
"""
if flag[0] in ["+","-"]:
return flag[1:]
else:
return flag
def reduce_flags(the_list):
"""Absolute value function for a USE flag list
@type the_list: list
@param the_list: the use flags to absolute.
@rtype: list
@return absolute USE flags
"""
reduced = []
for member in the_list:
reduced.append(reduce_flag(member))
return reduced
def filter_flags(use, use_expand_hidden, usemasked,
useforced, settings=default_settings):
"""Filter function to remove hidden or otherwise not normally
visible USE flags from a list.
@type use: list
@param use: the USE flag list to be filtered.
@type use_expand_hidden: list
@param use_expand_hidden: list of flags hidden.
@type usemasked: list
@param usemasked: list of masked USE flags.
@type useforced: list
@param useforced: the forced USE flags.
@param settings: optional portage config settings instance.
defaults to portage.api.settings.default_settings
@rtype: list
@return the filtered USE flags.
"""
# clean out some environment flags, since they will most probably
# be confusing for the user
for flag in use_expand_hidden:
flag = flag.lower() + "_"
for expander in use:
if flag in expander:
use.remove(expander)
# clean out any arch's
archlist = settings.settings["PORTAGE_ARCHLIST"].split()
for key in use[:]:
if key in archlist:
use.remove(key)
# dbl check if any from usemasked or useforced are still there
masked = usemasked + useforced
for flag in use[:]:
if flag in masked:
use.remove(flag)
return use
def get_all_cpv_use(cpv, root=None, settings=default_settings):
"""Uses portage to determine final USE flags and settings for an emerge
@type cpv: string
@param cpv: eg cat/pkg-ver
@type root: string
@param root: tree root to use
@param settings: optional portage config settings instance.
defaults to portage.api.settings.default_settings
@rtype: lists
@return use, use_expand_hidden, usemask, useforce
"""
if root is None:
root = settings.settings["ROOT"]
use = None
settings.portdb[root].settings.unlock()
try:
settings.portdb[root].settings.setcpv(cpv, mydb=settings.portdb[root])
use = settings.settings['PORTAGE_USE'].split()
use_expand_hidden = settings.settings["USE_EXPAND_HIDDEN"].split()
usemask = list(settings.portdb[root].settings.usemask)
useforce = list(settings.portdb[root].settings.useforce)
except KeyError:
settings.portdb[root].settings.reset()
settings.portdb[root].settings.lock()
return [], [], [], []
# reset cpv filter
settings.portdb[root].settings.reset()
settings.portdb[root].settings.lock()
return use, use_expand_hidden, usemask, useforce
def get_flags(cpv, final_setting=False, root=None, settings=default_settings):
"""Retrieves all information needed to filter out hidden, masked, etc.
USE flags for a given package.
@type cpv: string
@param cpv: eg. cat/pkg-ver
@type final_setting: boolean
@param final_setting: used to also determine the final
enviroment USE flag settings and return them as well.
@type root: string
@param root: pass through variable needed, tree root to use
for other function calls.
@param settings: optional portage config settings instance.
defaults to portage.api.settings.default_settings
@rtype: list or list, list
@return IUSE or IUSE, final_flags
"""
(final_use, use_expand_hidden, usemasked, useforced) = \
get_all_cpv_use(cpv, root, settings)
iuse_flags = filter_flags(get_iuse(cpv), use_expand_hidden,
usemasked, useforced, settings)
#flags = filter_flags(use_flags, use_expand_hidden,
#usemasked, useforced, settings)
if final_setting:
final_flags = filter_flags(final_use, use_expand_hidden,
usemasked, useforced, settings)
return iuse_flags, final_flags
return iuse_flags
def get_use_flag_dict(portdir):
""" Get all the use flags and return them as a dictionary
@param portdir: the path to the repository
@rtype dictionary of:
key = use flag forced to lowercase
data = list[0] = 'local' or 'global'
list[1] = 'package-name'
list[2] = description of flag
"""
use_dict = {}
# process standard use flags
_list = portage.grabfile(portdir + '/profiles/use.desc')
for item in _list:
index = item.find(' - ')
use_dict[item[:index].strip().lower()] = ['global', '', item[index+3:]]
# process local (package specific) use flags
_list = portage.grabfile(portdir + '/profiles/use.local.desc')
for item in _list:
index = item.find(' - ')
data = item[:index].lower().split(':')
try:
use_dict[data[1].strip()] = ['local', data[0].strip(), item[index+3:]]
except:
pass
#debug.dprint("FLAG: get_use_flag_dict();"
#"error in index??? data[0].strip, item[index:]")
#debug.dprint(data[0].strip())
#debug.dprint(item[index:])
return use_dict
|
GitWeb