remove unstable persistentlist dependency. fixes #52

feed2tweet/feedcache.py

@@ -0,0 +1,52 @@
+# vim:ts=4:sw=4:ft=python:fileencoding=utf-8
+# Copyright © 2015-2017 Carl Chenet <carl.chenet@ohmytux.com>
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>
+
+'''Manage a cache with the ids of the feed entries'''
+
+# standard libraires imports
+from collections import deque
+import os
+import os.path
+
+class FeedCache:
+    '''FeedCache class'''
+
+    def __init__(self, options):
+        '''Constructore of the FeedCache class'''
+        self.options = options
+        self.main()
+
+    def getdeque(self):
+        '''return the deque'''
+        return self.dbfeed
+
+    def main(self):
+        '''Main of the FeedCache class'''
+        if os.path.exists(self.options['cachefile']):
+            with open(self.options['cachefile']) as dbdsc:
+                dbfromfile = dbdsc.readlines()
+            dblist = [i.strip() for i in dbfromfile]
+            self.dbfeed = deque(dblist, self.options['cache_limit'] )
+        else:
+            self.dbfeed = deque([], self.options['cache_limit'] )
+
+    def append(self, rssid):
+        '''Append a rss id to the cache'''
+        self.dbfeed.append(rssid)
+
+    def close(self):
+        '''Close the cache'''
+        with open(self.options['cachefile'], 'w') as dbdsc:
+            dbdsc.writelines((''.join([i, os.linesep]) for i in self.dbfeed))

feed2tweet/main.py

@@ -26,11 +26,11 @@ import sys
 
 # 3rd party libraries imports
 import feedparser
-from persistentlist import PersistentList
 import tweepy
 
 # app libraries imports
 from feed2tweet.addtags import AddTags
+from feed2tweet.feedcache import FeedCache
 from feed2tweet.cliparse import CliParse
 from feed2tweet.confparse import ConfParse
 from feed2tweet.filterentry import FilterEntry
@@ -74,8 +74,8 @@ class Main(object):
             tweetformat = conf[2]
             feeds = conf[3]
             plugins = conf[4]
-            # open the persistent list
-            cache = PersistentList(options['cachefile'][0:-3], options['cache_limit'])
+            # create link to the persistent list
+            cache = FeedCache(options)
             if options['hashtaglist']:
                 severalwordshashtags = codecs.open(options['hashtaglist'],
                                                    encoding='utf-8').readlines()
@@ -99,7 +99,7 @@ class Main(object):
                 # cache the ids of last rss feeds
                 if not clioptions.all:
                     for i in entries:
-                        if 'id' in i and i['id'] not in cache:
+                        if 'id' in i and i['id'] not in cache.getdeque():
                             totweet.append(i)
                 else:
                     totweet = entries

requirements.txt

@@ -1,2 +1 @@
-persistentlist>=0.4
 tweepy>=3.5.0

setup.py

@@ -42,7 +42,7 @@ setup(
     download_url='https://github.com/chaica/feed2tweet',
     packages=find_packages(),
     scripts=['scripts/feed2tweet'],
-    install_requires=['feedparser', 'persistentlist>=0.4', 'tweepy'],
+    install_requires=['feedparser', 'tweepy'],
     extras_require={
         'influxdb':  ["influxdb"]
     }