Select a random image from a (list of) directory(s)
and set it as the desktop wallpaper (display it in the root window)
-using xli or xsetbg programs.
+using xli program.
"""
-__version__ = "$Revision$"[11:-2]
-__revision__ = "$Id$"[5:-2]
-__date__ = "$Date$"[7:-2]
-
-__author__ = "Oleg Broytman <phd@phd.pp.ru>"
-__copyright__ = "Copyright (C) 2000-2010 PhiloSoft Design"
+__author__ = "Oleg Broytman <phd@phdru.name>"
+__copyright__ = "Copyright (C) 2000-2014 PhiloSoft Design"
__license__ = "GNU GPL"
+__all__ = ['host', 'port', 'change']
+
-import sys, os
+import anydbm
+from fcntl import flock, LOCK_EX, LOCK_UN, LOCK_NB
+from datetime import timedelta
+import os
+import random
+import re
+import shelve
import subprocess
+import sys
+from time import time
+
+from xsetbg_conf import xsetbg_dir, xsetbg_conf
+from xsetbg_db import xsetbg_db
def error(error_str, error_code=1):
sys.exit(error_code)
-from ConfigParser import SafeConfigParser
-
-xsetbg_dir = os.path.dirname(os.path.abspath(__file__))
-os.chdir(xsetbg_dir)
-
-config = SafeConfigParser()
-config.read("xsetbg.conf")
-
-if config.has_option("images", "directory") or \
- config.has_option("images", "directory0") or \
- config.has_option("images", "directory1"):
+if xsetbg_conf.has_option("images", "directory") or \
+ xsetbg_conf.has_option("images", "directory0") or \
+ xsetbg_conf.has_option("images", "directory1"):
image_dirs = []
- if config.has_option("images", "directory"):
- image_dirs.append(config.get("images", "directory"))
- if config.has_option("images", "directory0"):
- image_dirs.append(config.get("images", "directory0"))
- if config.has_option("images", "directory1"):
- image_dirs.append(config.get("images", "directory1"))
+ if xsetbg_conf.has_option("images", "directory"):
+ image_dirs.append(xsetbg_conf.get("images", "directory"))
+ if xsetbg_conf.has_option("images", "directory0"):
+ image_dirs.append(xsetbg_conf.get("images", "directory0"))
+ if xsetbg_conf.has_option("images", "directory1"):
+ image_dirs.append(xsetbg_conf.get("images", "directory1"))
i = 2
while True:
option = "directory%d" % i
- if config.has_option("images", option):
- image_dirs.append(config.get("images", option))
+ if xsetbg_conf.has_option("images", option):
+ image_dirs.append(xsetbg_conf.get("images", option))
i += 1
else:
break
]
# minimum time in seconds between background image changes
-if config.has_option("xsetbg", "min_pause"):
- min_pause = config.getint("xsetbg", "min_pause")
+if xsetbg_conf.has_option("xsetbg", "min_pause"):
+ min_pause = xsetbg_conf.getint("xsetbg", "min_pause")
else:
min_pause = 60
-borders = config.get("xsetbg", "borders").split(',')
-if config.has_option("xsetbg", "borders"):
- borders = [border.strip() for border in config.get("xsetbg", "borders").split(',')]
+borders = xsetbg_conf.get("xsetbg", "borders").split(',')
+if xsetbg_conf.has_option("xsetbg", "borders"):
+ borders = [border.strip() for border in xsetbg_conf.get("xsetbg", "borders").split(',')]
else:
borders = ["darkcyan", "steelblue", "midnightblue"]
# minimum time in seconds between occurences of the same image
-if config.has_option("xsetbg", "min_delay"):
- min_delay = config.getint("xsetbg", "min_delay")
+if xsetbg_conf.has_option("xsetbg", "min_delay"):
+ min_delay = xsetbg_conf.get("xsetbg", "min_delay")
+
+ # Borrowed from http://stackoverflow.com/a/2765366
+ td_re = re.compile('(?:(?P<years>\d+)y)?(?:(?P<months>\d+)m)?(?:(?P<days>\d+)d)?(?:T(?:(?P<hours>\d+)h)?(?:(?P<minutes>\d+)m)?(?:(?P<seconds>\d+)s)?)?')
+ td_dict = td_re.match(min_delay).groupdict(0)
+ delta = timedelta(days=int(td_dict['days']) + (int(td_dict['months']) * 30) + (int(td_dict['years']) * 365),
+ hours=int(td_dict['hours']),
+ minutes=int(td_dict['minutes']),
+ seconds=int(td_dict['seconds']))
+
+ if delta:
+ min_delay = delta.days * 24*3600 + delta.seconds
+ else:
+ min_delay = int(min_delay)
+
else:
min_delay = 3600*24 # 24 hours
# httpd settings
-if config.has_option("httpd", "host"):
- host = config.get("httpd", "host")
+if xsetbg_conf.has_option("httpd", "host"):
+ host = xsetbg_conf.get("httpd", "host")
else:
host = 'localhost'
-if config.has_option("httpd", "port"):
- port = config.getint("httpd", "port")
+if xsetbg_conf.has_option("httpd", "port"):
+ port = xsetbg_conf.getint("httpd", "port")
else:
error("Config must specify a port to listen. Abort.")
-del config
-
-
-os.umask(0066) # octal; -rw-------; make the global persistent dictionary
- # readable only by the user
-global_db_name = "xsetbg.db"
-
# DB keys
timestamp_key = "timestamp"
old_filename_key = "old_filename"
-import random
-import anydbm, shelve
-from time import time
-from fcntl import flock, LOCK_EX, LOCK_UN, LOCK_NB
+# Create the database if it is not exists yet.
-# Import pickle and all anydbm/shelve internal machinery, so that
-# when ReadyExec forks they will be ready.
-# Also create the database if it is not exists yet.
+os.umask(0066) # octal; -rw-------; make the global persistent dictionary
+ # readable only by the user
try:
- global_db = shelve.open(global_db_name, flag='c')
+ xsetbg_db = shelve.open(xsetbg_db_path, flag='c')
except anydbm.error, msg:
if str(msg) == "db type could not be determined":
- os.remove(global_db_name)
- global_db = shelve.open(global_db_name, flag='c')
+ os.remove(xsetbg_db_path)
+ xsetbg_db = shelve.open(xsetbg_db_path, flag='c')
# Remove old filenames
old_time = time() - min_delay
to_delete = [timestamp_key]
-for key in global_db.keys():
- if key.startswith('/') and global_db[key] < old_time:
+for key in xsetbg_db.keys():
+ if key.startswith('/') and xsetbg_db[key] < old_time:
to_delete.append(key)
for key in to_delete:
try:
- del global_db[key]
+ del xsetbg_db[key]
except KeyError:
pass
-global_db.close() # Close DB in the parent process
+xsetbg_db.close() # Close DB in the parent process
images = []
error("No images found. Abort.")
-def published(func):
- func._wsgi_published = True
- return func
-
-@published
-def ping(force=False):
+def change(force=False):
# Use the program's file as the lock file:
# lock it to prevent two processes run in parallel.
lock_file = open("xsetbg.py", 'r')
return
- global_db = None
+ xsetbg_db = None
try:
# Reopen the global persistent dictionary
- global_db = shelve.open(global_db_name, 'w')
+ xsetbg_db = shelve.open(xsetbg_db_path, 'w')
- timestamp = global_db.get(timestamp_key)
+ timestamp = xsetbg_db.get(timestamp_key)
current_time = time()
if not force and timestamp is not None and \
return
# Save current time
- global_db[timestamp_key] = current_time
+ xsetbg_db[timestamp_key] = current_time
# Select a random image and check if we've seen it recently;
# loop until we can find a new image (never seen before) or old enough.
for i in xrange(len(images)): # ensure the loop is not infinite
image_name = random.choice(images)
- if global_db.has_key(image_name):
- image_time = global_db[image_name]
+ if xsetbg_db.has_key(image_name):
+ image_time = xsetbg_db[image_name]
if current_time - image_time > min_delay:
break
else:
break
- global_db[image_name] = current_time
+ xsetbg_db[image_name] = current_time
# Save filename
- if global_db.has_key(filename_key):
- global_db[old_filename_key] = global_db[filename_key]
- global_db[filename_key] = image_name
+ if xsetbg_db.has_key(filename_key):
+ xsetbg_db[old_filename_key] = xsetbg_db[filename_key]
+ xsetbg_db[filename_key] = image_name
program_options = ["xli", "-onroot", "-quiet"] + \
["-center", "-border", random.choice(borders), "-zoom", "auto",
flock(lock_file, LOCK_UN)
lock_file.close()
# Flush and close the global persistent dictionary
- if global_db: global_db.close()
-
-@published
-def force():
- ping(force=True)
-
-@published
-def stop():
- QuitWSGIServer._quit_flag = True
-
-
-from wsgiref.handlers import SimpleHandler
-from wsgiref import simple_server
-simple_server.ServerHandler = SimpleHandler # Stop logging to stdout
-from wsgiref.simple_server import WSGIServer, make_server
-
-g = globals().copy()
-commands = dict([(name, g[name]) for name in g
- if getattr(g[name], '_wsgi_published', False)])
-del g
-
-class QuitWSGIServer(WSGIServer):
- _quit_flag = False
-
- def serve_forever(self):
- while not self._quit_flag:
- self.handle_request()
-
-def app(env, start_response):
- command = env['PATH_INFO'][1:] # Remove the leading slash
- if command not in commands:
- status = '404 Not found'
- response_headers = [('Content-type', 'text/plain')]
- start_response(status, response_headers)
- return ['The command was not found.\n']
-
- try:
- commands[command]()
- except:
- status = '500 Error'
- response_headers = [('Content-type', 'text/plain')]
- start_response(status, response_headers)
- return ['Error occured!\n']
-
- status = '200 OK'
- response_headers = [('Content-type', 'text/plain')]
- start_response(status, response_headers)
- return ['Ok\n']
-
-httpd = make_server(host, port, app, server_class=QuitWSGIServer)
-httpd.serve_forever()
+ if xsetbg_db: xsetbg_db.close()
projects / xsetbg.git / blobdiff