#!/usr/bin/env python

# -*- coding: utf-8 -*-

#

# ============================================================================

#  Name        : extract.py

#  Part of     : Hb

#  Description : Hb themes script for extracting theme archives

#  Version     : %version: %

#

#  Copyright (c) 2008-2010 Nokia.  All rights reserved.

#  This material, including documentation and any related computer

#  programs, is protected by copyright controlled by Nokia.  All

#  rights are reserved.  Copying, including reproducing, storing,

#  adapting or translating, any or all of this material requires the

#  prior written consent of Nokia.  This material also contains

#  confidential information which may not be disclosed to others

#  without the prior written consent of Nokia.

# ============================================================================

import os

import re

import sys

import shutil

import zipfile

import fnmatch

import optparse

# ============================================================================

# Globals

# ============================================================================

VERBOSE = False

INPUT_DIR = os.getcwd()

OUTPUT_DIR = os.getcwd()

INCLUDE = None

EXCLUDE = None

# ============================================================================

# OptionParser

# ============================================================================

class OptionParser(optparse.OptionParser):

    def __init__(self):

        optparse.OptionParser.__init__(self)

        self.add_option("-v", "--verbose", action="store_true", dest="verbose",

                        help="print verbose information about each step of the sync process")

        self.add_option("-q", "--quiet", action="store_false", dest="verbose",

                        help="do not print information about each step of the sync process")

        self.add_option("-i", "--input", dest="input", metavar="dir",

                        help="specify the input <dir> (default %s)" % INPUT_DIR)

        self.add_option("-o", "--output", dest="output", metavar="dir",

                        help="specify the output <dir> (default %s)" % OUTPUT_DIR)

        self.add_option("--include", dest="include", action="append", metavar="pattern",

                        help="specify the include <pattern> (default %s)" % INCLUDE)

        self.add_option("--exclude", dest="exclude", action="append", metavar="pattern",

                        help="specify the exclude <pattern> (default %s)" % EXCLUDE)

# ============================================================================

# Utils

# ============================================================================

if not hasattr(os.path, "relpath"):

    def relpath(path, start=os.curdir):

        abspath = os.path.abspath(path)

        absstart = os.path.abspath(start)

        if abspath == absstart:

            return "."

        i = len(absstart)

        if not absstart.endswith(os.path.sep):

            i += len(os.path.sep)

        if not abspath.startswith(absstart):

            i = 0

        return abspath[i:]

    os.path.relpath = relpath

def extract(archive):

    global INPUT_DIR, OUTPUT_DIR

    path, filename = os.path.split(archive)

    relpath = os.path.relpath(path, INPUT_DIR)

    outpath = os.path.join(OUTPUT_DIR, relpath)

    # extract

    zip = zipfile.ZipFile(archive)

    for name in zip.namelist():

        data = zip.read(name)

        outfile = os.path.join(outpath, name)

        # overwrite only if different size

        if not os.path.exists(outfile) or os.path.getsize(outfile) != len(data):

            file = open(outfile, "w")

            file.write(data)

            file.close()

def include_exclude(filepath):

    global INCLUDE, EXCLUDE

    result = True

    if INCLUDE != None:

        for pattern in INCLUDE:

            if not fnmatch.fnmatch(filepath, pattern):

                result = False

    if EXCLUDE != None:

        for pattern in EXCLUDE:

            if fnmatch.fnmatch(filepath, pattern):

                result = False

    return result

# ============================================================================

# main()

# ============================================================================

def main():

    global VERBOSE, INPUT_DIR, OUTPUT_DIR, INCLUDE, EXCLUDE

    parser = OptionParser()

    (options, args) = parser.parse_args()

    if options.verbose != None:

        VERBOSE = options.verbose

    if options.input != None:

        INPUT_DIR = options.input

    if options.output != None:

        OUTPUT_DIR = options.output

    if options.include != None:

        INCLUDE = options.include

    if options.exclude != None:

        EXCLUDE = options.exclude

    extracted = 0

    copied = 0

    omitted = 0

    workpath = None

    newline = False

    sys.stdout.write("Processing: ")

    for root, dirs, files in os.walk(INPUT_DIR):

        for file in files:

            filepath = os.path.join(root, file)

            extension = os.path.splitext(file)[1]

            if include_exclude(filepath):

                # ensure that output dir exists

                relfilepath = os.path.relpath(filepath, INPUT_DIR)

                relpath = os.path.split(relfilepath)[0]

                outpath = os.path.join(OUTPUT_DIR, relpath)

                if not os.path.exists(outpath):

                    os.makedirs(outpath)

                # output processing dir info

                tmppath = os.path.split(filepath)[0]

                if tmppath != workpath:

                    if workpath != None:

                        newline = True

                        sys.stdout.write("\n            ")

                    workpath = tmppath

                    sys.stdout.write(os.path.relpath(workpath, INPUT_DIR).replace("\\", "/"))

                    sys.stdout.write(".")

                else:

                    sys.stdout.write(".")

                # extract zips

                if extension == ".zip":

                    extracted += 1

                    extract(filepath)

                # copy others

                else:

                    copied += 1

                    shutil.copy(filepath, outpath)

            else:

                omitted += 1

    if newline:

        sys.stdout.write("\n")

    print "        ==> %s archives(s) extracted" % extracted

    print "        ==> %s file(s) copied" % copied

    print "        ==> %s file(s) omitted" % omitted

    return 0

if __name__ == "__main__":

    sys.exit(main())