don't set default values for command line options so we can use paster

one and later our own conf. While I'm here display the address on which
we start to listen so we can get the port when using port=0.

bin/gunicorn_paste

@@ -63,12 +63,16 @@ def get_app(parser, opts, args):
     else:
         workers = int(ctx.local_conf.get('workers', 1))
         
+    opts.host = opts.host or ctx.local_conf.get('host', '127.0.0.1')
+    opts.port = opts.port or int(ctx.local_conf.get('port', 8000))
+        
     debug = ctx.global_conf.get('debug') == "true"
     if debug:
         # we force to one worker in debug mode.
         workers = 1
 
     opts.workers=workers
+    
     app = loadapp(config_url, relative_to=relative_to)
     return app
     

gunicorn/arbiter.py

@@ -92,6 +92,8 @@ class Arbiter(object):
                 if i < 5:
                     self.log.error("Retrying in 1 second.")
                 time.sleep(1)
+        if self.LISTENER: 
+            self.log.info("Listen on %s:%s" % self.LISTENER.getsockname())
                 
     def init_socket_fromfd(self, fd, address):
         sock = socket.fromfd(fd, socket.AF_INET, socket.SOCK_STREAM)

gunicorn/main.py

@@ -19,9 +19,9 @@ LOG_LEVELS = {
 
 def options():
     return [
-        op.make_option('--host', dest='host', default='127.0.0.1',
+        op.make_option('--host', dest='host',
             help='Host to listen on. [%default]'),
-        op.make_option('--port', dest='port', default=8000, type='int',
+        op.make_option('--port', dest='port', type='int',
             help='Port to listen on. [%default]'),
         op.make_option('--workers', dest='workers', type='int',
             help='Number of workers to spawn. [%default]'),
@@ -57,8 +57,17 @@ def main(usage, get_app):
     workers = opts.workers or 1
     if opts.debug:
         workers = 1
+        
+    host = opts.host or '127.0.0.1'
+    port = opts.port
+    if port is None:
+        if ':' in host:
+            host, port = host.split(':', 1)
+            port = int(port)
+        else:
+            port = 8000
     
-    arbiter = Arbiter((opts.host, opts.port), workers, app, 
+    arbiter = Arbiter((host,port), workers, app, 
                     opts.debug)
     arbiter.run()