/usr/lib/scons/SCons/Node/Alias.py is in scons 2.3.1-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 | """scons.Node.Alias
Alias nodes.
This creates a hash of global Aliases (dummy targets).
"""
#
# Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014 The SCons Foundation
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
__revision__ = "src/engine/SCons/Node/Alias.py 2014/03/02 14:18:15 garyo"
import collections
import SCons.Errors
import SCons.Node
import SCons.Util
class AliasNameSpace(collections.UserDict):
def Alias(self, name, **kw):
if isinstance(name, SCons.Node.Alias.Alias):
return name
try:
a = self[name]
except KeyError:
a = SCons.Node.Alias.Alias(name, **kw)
self[name] = a
return a
def lookup(self, name, **kw):
try:
return self[name]
except KeyError:
return None
class AliasNodeInfo(SCons.Node.NodeInfoBase):
current_version_id = 1
field_list = ['csig']
def str_to_node(self, s):
return default_ans.Alias(s)
class AliasBuildInfo(SCons.Node.BuildInfoBase):
current_version_id = 1
class Alias(SCons.Node.Node):
NodeInfo = AliasNodeInfo
BuildInfo = AliasBuildInfo
def __init__(self, name):
SCons.Node.Node.__init__(self)
self.name = name
def str_for_display(self):
return '"' + self.__str__() + '"'
def __str__(self):
return self.name
def make_ready(self):
self.get_csig()
really_build = SCons.Node.Node.build
is_up_to_date = SCons.Node.Node.children_are_up_to_date
def is_under(self, dir):
# Make Alias nodes get built regardless of
# what directory scons was run from. Alias nodes
# are outside the filesystem:
return 1
def get_contents(self):
"""The contents of an alias is the concatenation
of the content signatures of all its sources."""
childsigs = [n.get_csig() for n in self.children()]
return ''.join(childsigs)
def sconsign(self):
"""An Alias is not recorded in .sconsign files"""
pass
#
#
#
def changed_since_last_build(self, target, prev_ni):
cur_csig = self.get_csig()
try:
return cur_csig != prev_ni.csig
except AttributeError:
return 1
def build(self):
"""A "builder" for aliases."""
pass
def convert(self):
try: del self.builder
except AttributeError: pass
self.reset_executor()
self.build = self.really_build
def get_csig(self):
"""
Generate a node's content signature, the digested signature
of its content.
node - the node
cache - alternate node to use for the signature cache
returns - the content signature
"""
try:
return self.ninfo.csig
except AttributeError:
pass
contents = self.get_contents()
csig = SCons.Util.MD5signature(contents)
self.get_ninfo().csig = csig
return csig
default_ans = AliasNameSpace()
SCons.Node.arg2nodes_lookups.append(default_ans.lookup)
# Local Variables:
# tab-width:4
# indent-tabs-mode:nil
# End:
# vim: set expandtab tabstop=4 shiftwidth=4:
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