From e603b5e6ff16d11ff3307516633ceba2dbc636a4 Mon Sep 17 00:00:00 2001
From: Alexandre Dulaunoy <a@foo.be>
Date: Mon, 10 Jan 2011 06:41:41 +0100
Subject: [PATCH] tail-like option added

The option is continuously (every 60 seconds) fetching
the atom feed of RecentChanges and display the changes
like the tail-like without stopping. The option is
including by default the --state option as this inherent
to its use.
---
 wikirc2text.py | 49 +++++++++++++++++++++++++++++++------------------
 1 file changed, 31 insertions(+), 18 deletions(-)

diff --git a/wikirc2text.py b/wikirc2text.py
index 59cf643..5c21c0f 100644
--- a/wikirc2text.py
+++ b/wikirc2text.py
@@ -25,15 +25,18 @@ from optparse import OptionParser
 import time
 import datetime
 
-feedparser.USER_AGENT = "wikirc2text.py"
+feedparser.USER_AGENT = "wikirc2text - https://github.com/adulau/wikirc2text"
 usage = "usage: %s url(s)" % sys.argv[0]
 parser = OptionParser(usage)
 
 parser.add_option("-s", "--state", action="store_true" ,dest="state", help="keep state of existing rcline seen and don't output them", default=False)
 parser.add_option("-c", "--cleanstate", dest="statesec", help="expire states existing more than number of seconds specified")
-
+parser.add_option("-t", "--tail", action="store_true", dest="tail", help="tail-like operation by continuously appending new changes (--state option is enable)", default=False)
 (options, args) = parser.parse_args()
 
+if (options.tail):
+    options.state = True
+
 if (options.state):
     import shelve
     import hashlib
@@ -44,23 +47,33 @@ if len(args) < 1 and not options.statesec:
     exit()
 
 def core ():
-    for url in args:
-        d = feedparser.parse(url)
-        print d.feed.title
-        for e in d['entries']:
-            nicedate = time.strftime("%a, %d %b %Y %H:%M:%S +0000", e.updated_parsed)
-            rcline = e.links[0]['href'] + " by " +e.author_detail['name'] +" @ "+ nicedate
-            if (options.state):
-                sh = hashlib.md5()
-                sh.update(rcline.encode('utf-8'))
-                sh.digest()
-                shkey = sh.hexdigest()
-                if not (s.has_key(shkey)):
-                    s[shkey] =  time.mktime(datetime.datetime.now().timetuple())
-                    print rcline
-            else:
-                print rcline
 
+    if (options.tail):
+        r = sys.maxint
+    else:
+        r = 1
+
+    for x in xrange(r):
+
+        for url in args:
+            d = feedparser.parse(url)
+            if x == 0:
+                print d.feed.title
+            for e in d['entries']:
+                nicedate = time.strftime("%a, %d %b %Y %H:%M:%S +0000", e.updated_parsed)
+                rcline = e.links[0]['href'] + " by " +e.author_detail['name'] +" @ "+ nicedate
+                if (options.state):
+                    sh = hashlib.md5()
+                    sh.update(rcline.encode('utf-8'))
+                    sh.digest()
+                    shkey = sh.hexdigest()
+                    if not (s.has_key(shkey)):
+                        s[shkey] =  time.mktime(datetime.datetime.now().timetuple())
+                        print rcline
+                else:
+                    print rcline
+        if x > 1:
+            time.sleep(60)
 
     if (options.state):
         s.close()