#!/usr/bin/python

#

# Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

# All rights reserved.

# This component and the accompanying materials are made available

# under the terms of "Eclipse Public License v1.0"

# which accompanies this distribution, and is available

# at the URL "http://www.eclipse.org/legal/epl-v10.html".

#

# Initial Contributors:

# Nokia Corporation - initial contribution.

#

# Contributors:

#

# Description:

#   Checks that all the java source files declare a package and that 

#   the directory within a java source file is located corresponds

#   properly to the package.

#

#   Ignores tsrc directories unless the option -all is given.

import sys, os, re

def main():

    root = sys.argv[1]

    all = len(sys.argv) > 2 and sys.argv[2] == '-all'

    # Create a reg exp matching to "package x.y.z;" with whitespace ignored

    regex = re.compile("\\s*package\\s*([\\w.]*);.*", re.IGNORECASE)

    def visitFun(arg, dirname, names):

        # Skip SVN directories

        if dirname.find("\\.svn") != -1:

            return

        # Skip tsrc

        if not all and dirname.find("\\tsrc") != -1:

            return

        for f in names:

            if not f.endswith(".java"):

                continue

            try:

                fname = dirname + "\\" + f            

                file = open(fname)

                package = None

                line = file.readline()

                while line != "":

                    result = regex.match(line)

                    if result != None:

                        package = result.group(1)

                        break;                    

                    line = file.readline()

                if package != None:

                    expectedDir = package.replace(".", "\\");

                    if not dirname.endswith(expectedDir):

                        print "Wrong directory:", fname + ", package", package

                else:

                    print "Package statement missing:", fname

                file.close()

            except IOError:

                print "Error reading the file " + fname

    os.path.walk(sys.argv[1], visitFun, None)

if __name__ == "__main__":

    main()