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
|
# R Overlay -- ebuild creation, concrete metadata nodes
# Copyright 2006-2012 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# -- concrete metadata nodes --
from roverlay.portage.metadata.abstractnodes import \
MetadataNode, MetadataNodeNamedAccess, MetadataLeaf
class MetadataRoot ( MetadataNodeNamedAccess ):
"""This is the metadata root which represents a metadata file.
Intended usage is metadata file creation.
"""
HEADER = '\n'.join ( [
'<?xml version="1.0" encoding="UTF-8"?>',
'<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">'
] )
def __init__ ( self ):
super ( MetadataRoot, self ) . __init__ ( 'pkgmetadata' )
self.priority = 0
def empty ( self ):
#return 0 == len ( self.nodes ) or \
# True in ( node.empty() for node in self.nodes )
return 0 == len ( self.nodes )
def write_file ( self, _file ):
to_write = self.to_str()
own_fh = False
fh = None
success = False
newline = '\n'
try:
if isinstance ( _file, str ):
own_fh = True
fh = open ( _file, 'w' )
else:
fh = _file
fh.write ( MetadataRoot.HEADER )
fh.write ( newline )
fh.write ( to_write )
fh.write ( newline )
success = True
except IOError:
# log this TODO
pass
finally:
if own_fh and fh: fh.close()
return success
# --- end of write_file (...) ---
class DescriptionNode ( MetadataLeaf ):
def __init__ ( self, description, is_long=False, linewidth=None ):
super ( DescriptionNode, self ) . __init__ (
'longdescription' if is_long else 'description',
value=description,
)
# self.value_format = "break lines after 80c, ..."
if not linewidth is None and linewidth > 0:
self.linewidth = linewidth
self.priority = 150 if is_long else 149
_value_str = MetadataLeaf._pretty_value_str
class UseFlagNode ( MetadataLeaf ):
def __init__ ( self, flag_name, flag_description ):
super ( UseFlagNode, self ) . __init__ (
'flag',
flags=dict ( name = flag_name ),
value=flag_description,
)
# priority shouldn't be used for this node
self.priority = -1
class UseFlagListNode ( MetadataNode ):
def __init__ ( self, flags=dict() ):
super ( UseFlagListNode, self ) . __init__ ( 'use', flags=flags )
self.priority = 850
def active ( self ):
"""The UseFlag list is only active if it is enabled and at least
one UseFlag child node is active.
"""
# generator should stop after first True
# todo/fixme: could use super ( UseFlagListNode, self ).active() instead
# of self._enabled
return True in ( node.active() for node in self.nodes ) and self._enabled
def _sort_nodes ( self ):
"""UseFlags are sorted by lowercase flag name, not priority."""
self.nodes.sort ( key=lambda node : node.flags ['name'].lower() )
def add ( self, node ):
if isinstance ( node, UseFlagNode ):
super ( UseFlagListNode, self ) . add ( node )
else:
raise Exception ( "UseFlagListNode accepts UseFlagNodes only." )
class NopNode ( MetadataNode ):
def __init__ ( self ):
super ( NopNode, self ) . __init__ ( 'nop', flags=dict() )
|
GitWeb