Add appmain for backwards compatibility.

dub.sdl

@@ -8,6 +8,8 @@ dependency "eventcore" version="~>0.5.0"
 
 //subConfiguration "eventcore" "libasync"
 
+mainSourceFile "source/vibe/appmain.d"
+
 configuration "unittest" {
 	versions "VibeMutexLog" "VibeAsyncLog"
 }

source/vibe/appmain.d

@@ -0,0 +1,46 @@
+/**
+	Provides vibe based applications with a central program entry point.
+
+	This module is included automatically through the import 'vibe.d'. It will provide a default
+	application entry point which parses command line arguments, reads the global vibe configuration
+	file, and starts the event loop.
+
+	The application itself then just has to initialize itself from within a 'static this' module
+	constructor and perform the appropriate calls to listen for connections or other operations.
+
+	If you want to provide your own main function, you have to import vibe.vibe instead of
+	vibe.d and define a -version=VibeCustomMain. Be sure to call vibe.core.core.runEventLoop
+	at the end of your main function in this case. Also beware that you have to make appropriate
+	calls to vibe.core.args.finalizeCommandLineOptions and vibe.core.core.lowerPrivileges to get the
+	same behavior.
+
+	Copyright: © 2012-2016 RejectedSoftware e.K.
+	License: Subject to the terms of the MIT license, as written in the included LICENSE.txt file.
+	Authors: Sönke Ludwig
+*/
+module vibe.appmain;
+
+version (VibeDefaultMain):
+
+version (VibeCustomMain) {
+	static assert(false, "Both, VibeCustomMain and VibeDefaultMain are defined. "
+		~ "Either define only VibeDefaultMain, or nothing at all (VibeCustomMain "
+		~ "has no effect since 0.7.26).");
+}
+
+/**
+	The predefined vibe.d application entry point.
+
+	This function will automatically be executed if you import the module vibe.d in your code. It
+	will perform default command line parsing and starts the event loop.
+*/
+int main()
+{
+	import vibe.core.core : runApplication;
+
+	version (unittest) {
+		return 0;
+	} else {
+		return runApplication();
+	}
+}