"""SCons.Tool.CVS.py

Tool-specific initialization for CVS.

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.

"""

# Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 The SCons Foundation
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__revision__ = "src/engine/SCons/Tool/CVS.py 5134 2010/08/16 23:02:40 bdeegan"

import SCons.Action
import SCons.Builder
import SCons.Util

def generate(env):
    """Add a Builder factory function and construction variables for
    CVS to an Environment."""

    def CVSFactory(repos, module='', env=env):
        """ """
        import SCons.Warnings as W
        W.warn(W.DeprecatedSourceCodeWarning, """The CVS() factory is deprecated and there is no replacement.""")
        # fail if repos is not an absolute path name?
        if module != '':
           # Don't use os.path.join() because the name we fetch might
           # be across a network and must use POSIX slashes as separators.
           module = module + '/'
           env['CVSCOM']   = '$CVS $CVSFLAGS co $CVSCOFLAGS -d ${TARGET.dir} $CVSMODULE${TARGET.posix}'
        act = SCons.Action.Action('$CVSCOM', '$CVSCOMSTR')
        return SCons.Builder.Builder(action = act,
                                     env = env,
                                     CVSREPOSITORY = repos,
                                     CVSMODULE = module)

    #setattr(env, 'CVS', CVSFactory)
    env.CVS = CVSFactory

    env['CVS']        = 'cvs'
    env['CVSFLAGS']   = SCons.Util.CLVar('-d $CVSREPOSITORY')
    env['CVSCOFLAGS'] = SCons.Util.CLVar('')
    env['CVSCOM']     = '$CVS $CVSFLAGS co $CVSCOFLAGS ${TARGET.posix}'

def exists(env):
    return env.Detect('cvs')

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