X-Git-Url: https://code.delx.au/bg-scripts/blobdiff_plain/b63d8c626ddcc134450c08f137a23a35dede0207..9bbea708782fc721666590c03c36f574cbb3e756:/randombg.py diff --git a/randombg.py b/randombg.py index 3deac9c..9ff4642 100755 --- a/randombg.py +++ b/randombg.py @@ -1,13 +1,23 @@ #!/usr/bin/env python -VERSION = "2.0" +VERSION = "2.1" -import asyncore, asynchat, socket -import os, os.path, random, sys, time +import asyncore +import asynchat +import socket +import os +import random +import sys +import time from optparse import OptionParser import logging -logging.basicConfig(format="%(levelname)s: %(message)s") +try: + logging.basicConfig(format="%(levelname)s: %(message)s") +except TypeError: +# Python 2.3's logging.basicConfig does not support parameters + logging.basicConfig() + try: import cPickle as pickle except ImportError: @@ -18,7 +28,7 @@ try: import asyncsched import wallchanger except ImportError, e: - logging.critical("Missing libraries! Exiting...") + logging.critical("Missing libraries! Exiting...", exc_info=1) sys.exit(1) @@ -35,6 +45,7 @@ class BaseFileList(object): """Base file list implementation""" def __init__(self): self.paths = [] + self.favourites = [] def add_path(self, path): self.paths.append(path) @@ -43,7 +54,7 @@ class BaseFileList(object): try: logging.debug("Attempting to store cache") fd = open(filename, 'wb') - pickle.dump(obj = self, file = fd, protocol = 2) + pickle.dump(self, fd, 2) logging.debug("Cache successfully stored") except Exception, e: warning("Storing cache: %s" % e) @@ -59,10 +70,11 @@ class BaseFileList(object): if tmp.__class__ != self.__class__: raise ValueError("Using different file list type") - self.paths.sort() - if self.paths != getattr(tmp, "paths"): - raise ValueError("Path list changed") + tmp.paths.sort() + if self.paths != tmp.paths: + raise ValueError, "Path list changed" + # Overwrite this object with the other for attr, value in tmp.__dict__.items(): setattr(self, attr, value) @@ -72,6 +84,10 @@ class BaseFileList(object): logging.warning("Loading cache: %s" % e) return False + def add_to_favourites(self): + '''Adds the current image to the list of favourites''' + self.favourites.append(self.get_current_image()) + def scan_paths(self): raise NotImplementedError() @@ -147,29 +163,11 @@ class AllRandomFileList(BaseFileList): def store_cache(self, filename): try: fd = open(filename, 'wb') - pickle.dump(obj = self, file = fd, protocol = 2) + pickle.dump(self, fd, 2) logging.debug("Cache successfully stored") except Exception, e: logging.warning("Storing cache", exc_info=1) - def load_cache(self, filename, rescanPaths = False): - logging.debug('Attempting to load cache from "%s"' % filename) - self.paths.sort() - try: - fd = open(filename, 'rb') - tmp = pickle.load(fd) - if self.paths == tmp.paths: - logging.debug("Path lists match, copying properties") - # Overwrite this object with the other - for attr in ('list', 'imagePointer'): - setattr(self, attr, getattr(tmp, attr)) - else: - logging.debug("Ignoring cache, path lists do not match") - except Exception, e: - logging.warning("Loading cache", exc_info=1) - else: - return True - def get_current_image(self): return self.list[self.imagePointer] @@ -193,6 +191,7 @@ class AllRandomFileList(BaseFileList): def is_empty(self): return len(self.list) == 0 + class FolderRandomFileList(BaseFileList): """A file list that will pick a file randomly within a directory. Each directory has the same chance of being chosen.""" @@ -235,12 +234,12 @@ class FolderRandomFileList(BaseFileList): class Cycler(object): - def init(self, options, paths): + def init(self, options, paths, oneshot=False): self.cycle_time = options.cycle_time - self.history_filename = options.history_filename + self.cache_filename = options.cache_filename logging.debug("Initialising wallchanger") - wallchanger.init(options.background_colour, options.permanent) + wallchanger.init(options.background_colour, options.permanent, options.convert) logging.debug("Initialising file list") if options.all_random: @@ -253,7 +252,7 @@ class Cycler(object): for path in paths: self.filelist.add_path(path) - if self.filelist.load_cache(self.history_filename): + if self.filelist.load_cache(self.cache_filename): logging.debug("Loaded cache successfully") else: logging.debug("Could not load cache") @@ -264,10 +263,13 @@ class Cycler(object): sys.exit(1) self.task = None - self.cmd_reload() + if oneshot: + self.cmd_next() + else: + self.cmd_reload() def finish(self): - self.filelist.store_cache(self.history_filename) + self.filelist.store_cache(self.cache_filename) def find_files(self, options, paths): return filelist @@ -283,6 +285,7 @@ class Cycler(object): self.task.cancel() self.task = asyncsched.schedule(self.cycle_time, next) logging.debug("Reset timer for %s seconds" % self.cycle_time) + self.filelist.store_cache(self.cache_filename) def cmd_reload(self): image = self.filelist.get_current_image() @@ -310,9 +313,12 @@ class Cycler(object): def cmd_exit(self): asyncsched.exit() + def cmd_favourite(self): + self.filelist.add_to_favourites() + class Server(asynchat.async_chat): - def __init__(self, cycler, conn, addr): - asynchat.async_chat.__init__(self, conn=conn) + def __init__(self, cycler, sock): + asynchat.async_chat.__init__(self, sock) self.cycler = cycler self.ibuffer = [] self.set_terminator("\n") @@ -334,6 +340,14 @@ class Server(asynchat.async_chat): logging.debug('Unknown command received "%s"' % cmd) +class SockHackWrap(object): + def __init__(self, sock, addr): + self.__sock = sock + self.__addr = addr + def getpeername(self): + return self.__addr + def __getattr__(self, key): + return getattr(self.__sock, key) class Listener(asyncore.dispatcher): def __init__(self, socket_filename, cycler): @@ -344,14 +358,27 @@ class Listener(asyncore.dispatcher): self.listen(2) # Backlog = 2 def handle_accept(self): - conn, addr = self.accept() - Server(self.cycler, conn, addr) + sock, addr = self.accept() + Server(self.cycler, SockHackWrap(sock, addr)) def writable(self): return False def do_server(options, paths): + try: + sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM) + sock.connect(options.socket_filename) + print >>sys.stderr, "Server is already running! Will do nothing" + return + except: + pass + + try: + os.unlink(options.socket_filename) + except OSError: + pass + try: cycler = Cycler() listener = Listener(options.socket_filename, cycler) @@ -366,7 +393,7 @@ def do_server(options, paths): # Make sure that the socket is cleaned up try: os.unlink(options.socket_filename) - except: + except OSError: pass def do_client(options, args): @@ -383,7 +410,7 @@ def do_client(options, args): def do_oneshot(options, paths): cycler = Cycler() - cycler.init(options, paths) + cycler.init(options, paths, oneshot=True) def build_parser(): parser = OptionParser(version="%prog " + VERSION, @@ -420,9 +447,12 @@ def build_parser(): parser.add_option("--socket", action="store", type="string", dest="socket_filename", default=os.path.expanduser('~/.randombg_socket'), help="Location of the command/control socket.") - parser.add_option("--history-file", - action="store", type="string", dest="history_filename", default=os.path.expanduser('~/.randombg_historyfile'), + parser.add_option("--cache-file", + action="store", type="string", dest="cache_filename", default=os.path.expanduser('~/.randombg_cache'), help="Stores the location of the last image to be loaded.") + parser.add_option("--server", + action="store_true", dest="server", default=False, + help="Run in server mode to listen for clients.") return parser def main(): @@ -434,15 +464,20 @@ def main(): elif options.verbose >= 2: logging.getLogger().setLevel(logging.DEBUG) + if options.server: + do_server(options, args) + return + if options.oneshot: do_oneshot(options, args) + return - if os.path.exists(options.socket_filename): + try: do_client(options, args) - else: - do_server(options, args) + return + except Exception, e: + print >>sys.stderr, "Failed to connect to server:", e if __name__ == "__main__": main() -