Add a convinient way to enable Zope's debug mode from the runwsgi command.

docs/operation.rst

@@ -45,6 +45,18 @@ To run Zope without detaching from the console, use:
 In this mode, Zope emits its log messages to the console, and does not
 detach from the terminal.
 
+By default this command does not enable Zope's debug mode, so it can
+be used for production.
+
+In order to enable debug_mode, you can add the additional `-d` or
+``--debug`` argument to the command:
+
+.. code-block:: sh
+
+   $ bin/runwsgi -v etc/zope.ini -d
+   Starting server in PID 55111.
+   serving on http://127.0.0.1:8080
+
 The runwsgi commands takes a PasteDeploy configuration file as its
 argument. You can configure different WSGI capable servers,
 the WSGI pipeline or logging configuration in this file.

src/App/ApplicationManager.py

@@ -177,6 +177,9 @@ class ApplicationManager(Folder, CacheManager):
     def thread_get_ident(self):
         return get_ident()
 
+    def debug_mode(self):
+        return getConfiguration().debug_mode
+
     def db_name(self):
         return self._p_jar.db().getName()
 

src/App/dtml/cpContents.dtml

@@ -67,6 +67,18 @@ The Control Panel provides access to system information.
   </div>
   </td>
 </tr>
+<tr>
+  <td align="left" valign="top">
+  <div class="form-label">
+  Debug mode
+  </div>
+  </td>
+  <td align="left" valign="top">
+  <div class="form-text">
+  &dtml-debug_mode;
+  </div>
+  </td>
+</tr>
 <tr>
   <td align="left" valign="top">
   <div class="form-label">

src/Zope2/Startup/run.py

@@ -58,6 +58,9 @@ def make_wsgi_app(global_config, zope_conf):
     from ZPublisher.WSGIPublisher import publish_module
     starter = get_wsgi_starter()
     opts = ZopeWSGIOptions(configfile=zope_conf)()
+    if 'debug_mode' in global_config:
+        if global_config['debug_mode'] in ('true', 'on', '1'):
+            opts.configroot.debug_mode = True
     handleWSGIConfig(opts.configroot, opts.confighandlers)
     setConfiguration(opts.configroot)
     starter.setConfiguration(opts.configroot)

src/Zope2/Startup/serve.py

@@ -122,6 +122,12 @@ and then use %(http_port)s in your config files.
         const=0,
         dest='verbose',
         help="Suppress verbose output")
+    parser.add_option(
+        '-d', '--debug',
+        action='store_const',
+        const=1,
+        dest='debug',
+        help="Enable debug mode.")
 
     _scheme_re = re.compile(r'^[a-z][a-z]+:', re.I)
 
@@ -170,6 +176,8 @@ and then use %(http_port)s in your config files.
         server = self.loadserver(server_spec, name=server_name,
                                  relative_to=base, global_conf=vars)
 
+        if 'debug_mode' not in vars and self.options.debug:
+            vars['debug_mode'] = 'true'
         app = self.loadapp(app_spec, name=app_name, relative_to=base,
                            global_conf=vars)