#!/bin/env python
# oref.py
#
#    ========== licence begin  GPL
#    Copyright (C) 2001 SAP AG
#
#    This program is free software; you can redistribute it and/or
#    modify it under the terms of the GNU General Public License
#    as published by the Free Software Foundation; either version 2
#    of the License, or (at your option) any later version.
#
#    This program is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU General Public License for more details.
#
#    You should have received a copy of the GNU General Public License
#    along with this program; if not, write to the Free Software
#    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
#    ========== licence end
#


import sys
sys.stderr = sys.stdout
import os
from vmake import orefLib

def openStream (fname):
    if fname == 'stdout':
        result = sys.stdout
    else:
        dirname = os.path.dirname (fname)
        if dirname and not os.path.isdir (dirname):
            os.makedirs (dirname)
        result = open (fname, 'wt')
    return result


def defaultArgs ():
    wrk = os.environ ['WRK']
    result = []
    for x in ['fast', 'quick', 'slow']:
        result.append (os.path.join (wrk, x, 'obj'))
    return result

def main (options, args):
    """
creates xref file from object files

    Currently, only *.o files are parsed.

    When no arguments are given, oref searches through
    $WRK/fast, $WRK/quick and $WRK/slow.

    """
    try:
        outfile = openStream (options.outfile)
        ref = orefLib.ORef (options.verbose, options.path)
        if not args:
            args = defaultArgs ()
        for arg in args:
            ref.add (arg)
        ref.format (outfile)
    except:
        import traceback
        traceback.print_exc ()

def _options ():
    return [
        # (optstring, varname, typechar, default, help)
        ('o', 'outfile', ':', 'stdout', 'output file'),
        ('path', None, ':', None, 'path to dumpbin'),
        ('v', 'verbose', '', None, 'verbose output'),
        ]

if __name__ == '__main__':
    import optlib
    optlib.optMain2 (main, _options ())
