mapnik/scons/scons-local-2.3.1/SCons/Tool/wix.py

"""SCons.Tool.wix

Tool-specific initialization for wix, the Windows Installer XML Tool.

There normally shouldn't be any need to import this module directly.
It will usually be imported through the generic SCons.Tool.Tool()
selection method.
"""

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__revision__ = "src/engine/SCons/Tool/wix.py  2014/03/02 14:18:15 garyo"

import SCons.Builder
import SCons.Action
import os

def generate(env):
    """Add Builders and construction variables for WiX to an Environment."""
    if not exists(env):
      return

    env['WIXCANDLEFLAGS'] = ['-nologo']
    env['WIXCANDLEINCLUDE'] = []
    env['WIXCANDLECOM'] = '$WIXCANDLE $WIXCANDLEFLAGS -I $WIXCANDLEINCLUDE -o ${TARGET} ${SOURCE}'

    env['WIXLIGHTFLAGS'].append( '-nologo' )
    env['WIXLIGHTCOM'] = "$WIXLIGHT $WIXLIGHTFLAGS -out ${TARGET} ${SOURCES}"
    env['WIXSRCSUF'] = '.wxs'
    env['WIXOBJSUF'] = '.wixobj'

    object_builder = SCons.Builder.Builder(
        action      = '$WIXCANDLECOM',
        suffix      = '$WIXOBJSUF',
        src_suffix  = '$WIXSRCSUF')

    linker_builder = SCons.Builder.Builder(
        action      = '$WIXLIGHTCOM',
        src_suffix  = '$WIXOBJSUF',
        src_builder = object_builder)

    env['BUILDERS']['WiX'] = linker_builder

def exists(env):
    env['WIXCANDLE'] = 'candle.exe'
    env['WIXLIGHT']  = 'light.exe'

    # try to find the candle.exe and light.exe tools and 
    # add the install directory to light libpath.
    for path in os.environ['PATH'].split(os.pathsep):
        if not path:
            continue

        # workaround for some weird python win32 bug.
        if path[0] == '"' and path[-1:]=='"':
            path = path[1:-1]

        # normalize the path
        path = os.path.normpath(path)

        # search for the tools in the PATH environment variable
        try:
            files = os.listdir(path)
            if env['WIXCANDLE'] in files and env['WIXLIGHT'] in files:
                env.PrependENVPath('PATH', path)
                # include appropriate flags if running WiX 2.0
                if 'wixui.wixlib' in files and 'WixUI_en-us.wxl' in files:
                    env['WIXLIGHTFLAGS'] = [ os.path.join( path, 'wixui.wixlib' ),
                                             '-loc',
                                             os.path.join( path, 'WixUI_en-us.wxl' ) ]
                else:
                    env['WIXLIGHTFLAGS'] = []
                return 1
        except OSError:
            pass # ignore this, could be a stale PATH entry.

    return None

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