Added --category

With --category, a category can be specified which will be downloaded, but only that run, next time the configured category will take over again

.gitignore

@@ -1,4 +1,4 @@
 *~
 *.pyc
-#*#
+\#*\#
 .*

4grab.py

@@ -35,9 +35,14 @@ This program comes with ABSOLUTELY NO WARRANTY.
 This is free software, and you are welcome to redistribute it
 under certain conditions.""")
 parser.add_option("-e", nargs=2, dest="confval", metavar="CONF VALUE", help="Set configuration option CONF to be VALUE")
+parser.add_option("-c", "--category", dest="tempcat", metavar="CATEGORY", help="Set the category to CATEGORY only for this run")
 
 (options, args) = parser.parse_args()
 
+if options.confval and options.tempcat:
+    print "Cannot set a value and download"
+    exit(1)
+
 if options.confval:
     if not config.Configuration().option_exists(options.confval[0]):
         print "%s: error: %s is not a valid configuration option" % (sys.argv[0], options.confval[0])
@@ -46,6 +51,8 @@ if options.confval:
     config.Configuration().set_option(options.confval[0], options.confval[1])
     config.Configuration().save()
     exit(0)
+elif options.tempcat:
+    config.Configuration().set_category(options.tempcat)
 
 base_url = "http://boards.4chan.org/%s/" % (config.Configuration().get_category())