Add unique config option to shows

This disables the automatic detection of multiple shows with identical names,
which will add a timestamp to the filename.  With unique=true, the show is
treated as having unique episode titles, and only the first one will be
downloaded.

config.yaml

@@ -4,6 +4,7 @@ shows:
   - "Conan":
   - series: "Dirk Gently's Holistic Detective Agency"
     short: "Dirk Gently"
+    unique: true
 host: "wavehh.lassitu.de:30080"
 postprocess: 'NQDIR=/home/stb/.tivo/nq nq archivevideo "{item.target}"'
 proxies:

tivomirror.py

@@ -70,8 +70,10 @@ class Config:
 
 		for show in self.shows:
 			if isinstance(show, dict):
-				if 'short' in show and 'series' in show:
+				if 'series' in show:
-					IncludeShow(show['series'], show['short'])
+					IncludeShow(show['series'],
+						short=show.get('short', show['series']),
+						unique=show.get('unique'))
 				else:
 					logger.error("Need either a string, or a dict with 'series' and 'short' entries for a show, got \"{}\".".format\
 						(show))
@@ -87,10 +89,11 @@ config = None
 class IncludeShow:
 	includes = dict()
 	
-	def __init__(self, title, short=None):
+	def __init__(self, title, short=None, unique=None):
 		self.short = short
 		self.title = title
 		self.timestamp = False
+		self.unique = unique
 		self.includes[title] = self
 
 
@@ -316,12 +319,23 @@ class TivoToc:
 					names[item.name] = []
 				names[item.name].append(item)
 			for name in names:
-				if len(names[name]) > 1:
+				utf8title = title.encode("utf-8")
-					self.uniquedb[title.encode("utf-8")] = "1"
+				if len(names[name]) > 1 and not self.uniquedb.has_key(utf8title):
+					self.uniquedb[utf8title] = "1"
 		if getattr(self.uniquedb, "sync", None) and callable(self.uniquedb.sync):
 			self.uniquedb.sync()
+		# update all items based on config and uniquedb
 		for item in self.items:
-			if self.uniquedb.has_key(item.title.encode("utf-8")):
+			multiple = None
+			options = IncludeShow.includes.get(title)
+			if options:
+				if options.unique:
+					multiple = False
+			if multiple == None:
+				utf8title = title.encode("utf-8")
+				if self.uniquedb.has_key(utf8title) and self.uniquedb[utf8title] == '1':
+					multiple = True
+			if multiple:
 				item.makeNotUnique()
 		return self.items