From cbaf7d5cee5d198cb771710a25b727c75e8ead32 Mon Sep 17 00:00:00 2001
From: Vincent Le Gallic <legallic@crans.org>
Date: Mon, 6 Apr 2015 01:24:53 +0200
Subject: [PATCH] daemonisable
MIME-Version: 1.0
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shamelessly pillé sur basile
---
 helixbot.py | 82 +++++++++++++++++++++++++++++++++++++++++++++++------
 1 file changed, 74 insertions(+), 8 deletions(-)

diff --git a/helixbot.py b/helixbot.py
index f9b14c6..6ea8572 100755
--- a/helixbot.py
+++ b/helixbot.py
@@ -6,13 +6,19 @@
 Un bot IRC qui donne les réponses de Helix the fossil.
 """
 
-import irclib
+import sys
+import os
 import ircbot
 import random
 import time
 import re
+import signal
 from commands import getstatusoutput as ex
 
+# Oui, j'ai recodé ma version d'irclib pour pouvoir rattrapper les SIGHUP
+sys.path.insert(0, "/home/vincent/scripts/python-myirclib")
+import irclib
+
 # on récupère la config
 import config
 
@@ -23,6 +29,9 @@ def get_config_logfile(serveur):
     return config.logfile_template % (serveurs[serveur])
 
 def log(serveur, channel, auteur=None, message=None):
+    import os
+    print "\n", serveur, channel, auteur, message, get_config_logfile(serveur), os.getenv("USER")
+    print os.getcwd()
     f = open(get_config_logfile(serveur), "a")
     if auteur == message == None:
         # alors c'est que c'est pas un channel mais juste une ligne de log
@@ -391,26 +400,83 @@ class HelixBot(ircbot.SingleServerIRCBot):
     def _getnick(self):
         return self.serv.get_nickname()
     nick = property(_getnick)
+    
+    ### .fork trick
+    def start_as_daemon(self, outfile):
+        sys.stderr = Logger(outfile)
+        self.start()
 
+class Logger(object):
+    """Pour écrire ailleurs que sur stdout"""
+    def __init__(self, filename="basile.full.log"):
+        self.filename = filename
 
-if __name__ == "__main__":
-    import sys
+    def write(self, message):
+        f = open(self.filename, "a")
+        f.write(message)
+        f.close()
+
+def main():
+    """Exécution principale : lecture des paramètres et lancement du bot."""
     if len(sys.argv) == 1:
-        print "Usage : helixbot.py <serveur> [--debug]"
+        print "Usage : helixbot.py <serveur> [--debug] [--no-output] [--daemon [--pidfile]] [--outfile]"
+        print "        --outfile sans --no-output ni --daemon n'a aucun effet"
         exit(1)
     serveur = sys.argv[1]
+    if "--daemon" in sys.argv:
+        thisfile = os.path.realpath(__file__)
+        thisdirectory = thisfile.rsplit("/", 1)[0]
+        os.chdir(thisdirectory)
+        daemon = True
+    else:
+        daemon = False
     if "debug" in sys.argv or "--debug" in sys.argv:
         debug = True
     else:
         debug = False
     if "--quiet" in sys.argv:
         config.debug_stdout = False
-    serveurs = {"a♡":"acoeur.crans.org", "acoeur":"acoeur.crans.org", "acoeur.crans.org":"acoeur.crans.org",
-              "irc":"irc.crans.org", "crans":"irc.crans.org", "irc.crans.org":"irc.crans.org"}
+    serveurs = {"a♡" : "acoeur.crans.org",
+              "acoeur" : "acoeur.crans.org",
+              "acoeur.crans.org" : "acoeur.crans.org",
+              "irc" : "irc.crans.org",
+              "crans" : "irc.crans.org",
+              "irc.crans.org" : "irc.crans.org"}
+    if "--no-output" in sys.argv or "--daemon" in sys.argv:
+        outfile = "/var/log/bots/helixbot.full.log"
+        for arg in sys.argv:
+            arg = arg.split("=")
+            if arg[0].strip('-') in ["out", "outfile", "logfile"]:
+                outfile = arg[1]
+        sys.stdout = Logger(outfile)
     try:
         serveur = serveurs[serveur]
     except KeyError:
         print "Server Unknown : %s" % (serveur)
         exit(404)
-    bot = HelixBot(serveur, debug)
-    bot.start()
+    helix = HelixBot(serveur,debug)
+    # Si on reçoit un SIGHUP, on reload la config
+    def sighup_handler(signum, frame):
+        helix.execute_reload(auteur="SIGHUP")
+    signal.signal(signal.SIGHUP, sighup_handler)
+    # Daemonization
+    if daemon:
+        child_pid = os.fork()
+        if child_pid == 0:
+            os.setsid()
+            helix.start_as_daemon(outfile)
+        else:
+            # on enregistre le pid de basile
+            pidfile = "/var/run/bots/helix.pid"
+            for arg in sys.argv:
+                arg = arg.split("=")
+                if arg[0].strip('-') in ["pidfile"]:
+                    pidfile = arg[1]
+            f = open(pidfile, "w")
+            f.write("%s\n" % child_pid)
+            f.close()
+    else:
+        helix.start()
+
+if __name__ == "__main__":
+    main()
-- 
2.39.2