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#!/usr/bin/env python2.6
#-*- mode: python -*-
##-*****************************************************************************
##
## Copyright (c) 2009-2011,
## Sony Pictures Imageworks Inc. and
## Industrial Light & Magic, a division of Lucasfilm Entertainment Company Ltd.
##
## All rights reserved.
##
## Redistribution and use in source and binary forms, with or without
## modification, are permitted provided that the following conditions are
## met:
## * Redistributions of source code must retain the above copyright
## notice, this list of conditions and the following disclaimer.
## * Redistributions in binary form must reproduce the above
## copyright notice, this list of conditions and the following disclaimer
## in the documentation and/or other materials provided with the
## distribution.
## * Neither the name of Industrial Light & Magic nor the names of
## its contributors may be used to endorse or promote products derived
## from this software without specific prior written permission.
##
## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
## "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
## LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
## A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
## OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
## DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
## THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
##
##-*****************************************************************************
from __future__ import with_statement
import os, sys, re
from Path import Path
##-*****************************************************************************
COMMENT = re.compile( r"//|#" )
WS = re.compile( r"\s" )
##-*****************************************************************************
class CacheEntry( object ):
def __init__( self, _line ):
line = WS.sub( "", str( _line ) )
if not line:
return None
elif COMMENT.match( line ):
return None
else:
# get rid of comments at the end of the line
line = COMMENT.split( line, 1 )[0].strip()
try:
name_type, value = line.split( '=' )
self._value = value.strip()
if self._value == '':
self._value = None
name, typ = name_type.split( ':' )
self._name = name.strip()
self._type = typ.strip()
except ValueError:
sys.stderr.write( "Could not parse line '%s'\n" % _line )
self._value = None
self._name = None
self._type = None
def __str__( self ):
val = ""
typ = ""
if self._value != None:
val = self._value
if self._type != None:
typ = self._type
if self._name == None:
return ""
else:
s = "%s:%s=%s" % ( self._name, typ, val )
return s.strip()
def __eq__( self, other ):
return str( self ) == str( other )
def __nonzero__( self ):
try:
return self._name != None and self._value != None
except AttributeError:
return False
def name( self ):
return self._name
def value( self, newval = None ):
if newval != None:
self._value = newval
else:
return self._value
def hint( self ):
"""Return the CMakeCache TYPE of the entry; used as a hint to CMake
GUIs."""
return self._type
##-*****************************************************************************
class CMakeCache( object ):
"""This class is used to read in and get programmatic access to the
variables in a CMakeCache.txt file, manipulate them, and then write the
cache back out."""
def __init__( self, path=None ):
self._cachefile = Path( path )
_cachefile = str( self._cachefile )
self._entries = {}
if self._cachefile.exists():
with open( _cachefile ) as c:
entries = filter( None, map( lambda x: CacheEntry( x ),
c.readlines() ) )
entries = filter( lambda x: x.value() != None, entries )
for i in entries:
self._entries[i.name()] = i
def __contains__( self, thingy ):
try:
return thingy in self.names()
except TypeError:
return thingy in self._entries.values()
def __iter__( self ):
return self._entries
def __nonzero__( self ):
return len( self._entries ) > 0
def __str__( self ):
return os.linesep.join( map( lambda x: str( x ), self.entries() ) )
def add( self, entry ):
e = CacheEntry( entry )
if e:
if not e in self:
self._entries[e.name()] = e
else:
sys.stderr.write( "Entry for '%s' is already in the cache.\n" % \
e.name() )
else:
sys.stderr.write( "Could not create cache entry for '%s'\n" % e )
def update( self, entry ):
e = CacheEntry( entry )
if e:
self._entries[e.name()] = e
else:
sys.stderr.write( "Could not create cache entry for '%s'\n" % e )
def names( self ):
return self._entries.keys()
def entries( self ):
return self._entries.values()
def get( self, name ):
return self._entries[name]
def cachefile( self ):
return self._cachefile
def refresh( self ):
self.__init__( self._cachefile )
def write( self, newfile = None ):
if newfile == None:
newfile = self._cachefile
with open( newfile, 'w' ) as f:
for e in self.entries():
f.write( str( e ) + os.linesep )
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