# Scan the tree passed as argv[0] for .rsrc files, skipping .rsrc.df.rsrc

# files, and open these. The effect of this is to create the .rsrc.df.rsrc

# cache files if needed.

# These are needed on OSX: the .rsrc files are in reality AppleSingle-encoded

# files. We decode the resources into a datafork-based resource file.

import macresource

import os

import sys

import getopt

class NoArgsError(Exception):

    pass

def handler((verbose, force), dirname, fnames):

    for fn in fnames:

        if fn[-5:] == '.rsrc' and fn[-13:] != '.rsrc.df.rsrc':

            if force:

                try:

                    os.unlink(os.path.join(dirname, fn + '.df.rsrc'))

                except IOError:

                    pass

            macresource.open_pathname(os.path.join(dirname, fn), verbose=verbose)

def main():

    try:

        opts, args = getopt.getopt(sys.argv[1:], 'vf')

        if not args:

            raise NoArgsError

    except (getopt.GetoptError, NoArgsError):

        sys.stderr.write('Usage: cachersrc.py dirname ...\n')

        sys.exit(1)

    verbose = 0

    force = 0

    for o, v in opts:

        if o == '-v':

            verbose = 1

        if o == '-f':

            force = 1

    for dir in sys.argv[1:]:

        os.path.walk(dir, handler, (verbose, force))

if __name__ == '__main__':

    main()