89 lines
2.7 KiB
Python
89 lines
2.7 KiB
Python
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"""scons.Node.Alias
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Alias nodes.
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This creates a hash of global Aliases (dummy targets).
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"""
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#
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# Copyright (c) 2001, 2002, 2003, 2004 The SCons Foundation
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#
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# Permission is hereby granted, free of charge, to any person obtaining
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# a copy of this software and associated documentation files (the
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# "Software"), to deal in the Software without restriction, including
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# without limitation the rights to use, copy, modify, merge, publish,
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# distribute, sublicense, and/or sell copies of the Software, and to
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# permit persons to whom the Software is furnished to do so, subject to
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# the following conditions:
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#
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# The above copyright notice and this permission notice shall be included
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# in all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
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# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
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# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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#
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__revision__ = "/home/scons/scons/branch.0/baseline/src/engine/SCons/Node/Alias.py 0.96.1.D001 2004/08/23 09:55:29 knight"
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import UserDict
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import SCons.Errors
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import SCons.Node
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import SCons.Util
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class AliasNameSpace(UserDict.UserDict):
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def Alias(self, name):
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if self.has_key(name):
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raise SCons.Errors.UserError
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self[name] = SCons.Node.Alias.Alias(name)
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return self[name]
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def lookup(self, name):
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try:
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return self[name]
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except KeyError:
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return None
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class Alias(SCons.Node.Node):
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def __init__(self, name):
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SCons.Node.Node.__init__(self)
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self.name = name
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def __str__(self):
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return self.name
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def build(self):
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"""A "builder" for aliases."""
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pass
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current = SCons.Node.Node.children_are_up_to_date
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def sconsign(self):
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"""An Alias is not recorded in .sconsign files"""
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pass
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def is_under(self, dir):
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# Make Alias nodes get built regardless of
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# what directory scons was run from. Alias nodes
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# are outside the filesystem:
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return 1
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def get_contents(self):
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"""The contents of an alias is the concatenation
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of all the contents of its sources"""
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contents = ""
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for kid in self.children(None):
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contents = contents + kid.get_contents()
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return contents
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default_ans = AliasNameSpace()
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SCons.Node.arg2nodes_lookups.append(default_ans.lookup)
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