Subversion Repositories programming

#!/usr/bin/python

import os, re, shutil, sys

from optparse import OptionParser

### DEFAULT CONFIGURATION VARIABLES ###

DICT_FILE = os.path.expanduser('~/.config/animesorter/animesorter.dict')

WORK_DIR =  os.path.expanduser('~/downloads/usenet')

SORT_DIR =  os.path.expanduser('/data/Anime')

class AnimeSorter:

    def __init__(self):

        self.options = {}

        self.move_status = []

    def parse_dict(self):

        """Parses a dictionary file containing the sort definitions in the form:

        DIRECTORY = PATTERN

        Returns a list of tuples of the form (compiled_regex, to_directory)"""

        try:

            f = open(self.options.dict_file, 'r', 0)

            try:

                data = f.read()

            finally:

                f.close()

        except IOError:

            print 'Error opening %s ... exiting!' % options.dict_file

            sys.exit()

        ### Get a LIST containing each line in the file

        lines = [l for l in data.split('\n') if len(l) > 0]

        ### Split each line into a tuple, and strip each element of spaces

        result = [(r, d) for r, d in [l.split('=') for l in lines]]

        result = [(r.strip() ,d.strip()) for r, d in result]

        result = [(re.compile(r), d) for r, d in result]

        return tuple(result)

    def get_types_re(self):

        """Returns a compiled regular expression which will find objects of the

        types specified in this function's definition."""

        types = ('avi', 'ogm', 'mkv', 'mp4')

        types_regex = ''

        for i in types:

            types_regex += '%s|' % i

        types_regex = '.*(%s)$' % types_regex[:-1]

        return re.compile(types_regex, re.IGNORECASE)

    def get_matches(self, files, pattern):

        """get_matches(files, pattern):

        files is type LIST

        pattern is type sre.SRE_Pattern

        Returns a list of the files matching the pattern as type sre.SRE_Match."""

        matches = [m for m in files if pattern.search(m)]

        return matches

    def move_files(self, files, fromdir, todir):

        """move_files(files, fromdir, todir):

        Move the files represented by the list FILES from FROMDIR to TODIR"""

        ## Check for a non-default directory

        if todir[0] != '/':

            todir = os.path.join(self.options.output_dir, todir)

        ## Create the directory if it doesn't exist

        if not os.path.isdir(todir):

            try:

                os.makedirs(todir)

            except:

                self.move_status.append('FAILED to create directory: %s' % todir)

        ## Try to move every file, one at a time

        for f in files:

            srcname = os.path.join(fromdir, f)

            dstname = os.path.join(todir, f)

            try:

                shutil.move(srcname, dstname)

            except:

                self.move_status.append('FAILED to move %s to %s' % (f, todir))

                return

            self.move_status.append('Moved %s to %s' % (f, todir))

    def print_prog_header(self):

        if self.options.verbose:

            print 'Regular Expression File Sorter (aka animesorter)'

            print '================================================================================'

            print 'Copyright (c) 2005, Ira W. Snyder (devel@irasnyder.com)'

            print 'All rights reserved.'

            print 'This program is licensed under the GNU GPL v2'

            print

    def print_dir_header(self, dir):

        if self.options.verbose:

            print 'Working in directory: %s' % dir

            print '================================================================================'

    def print_move_status(self):

        if self.options.verbose:

            for i in self.move_status:

                print i

            print

    def get_parsed_options(self):

        parser = OptionParser()

        parser.add_option('-q', '--quiet', action='store_false', dest='verbose',

                          default=True, help='don\'t print status messages to stdout')

        parser.add_option('-d', '--dict', dest='dict_file', default=DICT_FILE,

                          help='read dictionary from FILE', metavar='FILE')

        #parser.add_option('-n', '--not-recursive', action='store_false', dest='recursive',

        #                   default=True, help='don\'t run recursively')

        parser.add_option('-s', '--start-dir', dest='start_dir', default=WORK_DIR,

                          help='start running at directory DIR', metavar='DIR')

        parser.add_option('-o', '--output-dir', dest='output_dir', default=SORT_DIR,

                          help='sort files into DIR', metavar='DIR')

        ## Parse the options

        (options, args) = parser.parse_args()

        ## Correct directories

        options.dict_file = os.path.abspath(options.dict_file)

        options.start_dir = os.path.abspath(options.start_dir)

        options.output_dir = os.path.abspath(options.output_dir)

        return options

    def main(self):

        ## Get Options

        self.options = self.get_parsed_options()

        ## Print the program's header

        self.print_prog_header()

        ## Parse the dictionary

        dict = self.parse_dict()

        ## Start walking through directories

        for root, dirs, files in os.walk(self.options.start_dir):

            ## Blank the status variable

            self.move_status = []

            ## Get all of the files in the directory that are of the correct types

            types_re = self.get_types_re()

            raw_matches = [f for f in files if types_re.match(f)]

            ### Loop through the dictionary and try to move everything that matches

            for regex, todir in dict:

                matches = self.get_matches(raw_matches, regex)

                ## Move the files if we've found some

                if len(matches) > 0:

                    self.move_files(matches, root, todir)

            if len(self.move_status) > 0:

                ## print header

                self.print_dir_header(root)

                ## print status

                self.print_move_status()

### MAIN IS HERE ###

if __name__ == '__main__':

    as = AnimeSorter()

    as.main()