apibuild: Introduce app class

All top-level functions have been moved to this class.

On top of that, the app.warning() method has been defined,
so that calls to it - already present in rebuild() - can
actually succeed.

docs/apibuild.py

@@ -2584,7 +2584,13 @@ class docBuilder:
         output.close()
 
 
-def rebuild(name):
+class app:
+    def warning(self, msg):
+        global warnings
+        warnings = warnings + 1
+        print msg
+
+    def rebuild(self, name):
         if name not in ["libvirt", "libvirt-qemu", "libvirt-lxc", "libvirt-admin"]:
             self.warning("rebuild() failed, unknown module %s") % name
             return None
@@ -2618,23 +2624,25 @@ def rebuild(name):
         builder.serialize()
         return builder
 
-#
-# for debugging the parser
-#
-def parse(filename):
+    #
+    # for debugging the parser
+    #
+    def parse(self, filename):
         parser = CParser(filename)
         idx = parser.parse()
         return idx
 
+
 if __name__ == "__main__":
+    app = app()
     if len(sys.argv) > 1:
         debug = 1
-        parse(sys.argv[1])
+        app.parse(sys.argv[1])
     else:
-        rebuild("libvirt")
-        rebuild("libvirt-qemu")
-        rebuild("libvirt-lxc")
-        rebuild("libvirt-admin")
+        app.rebuild("libvirt")
+        app.rebuild("libvirt-qemu")
+        app.rebuild("libvirt-lxc")
+        app.rebuild("libvirt-admin")
     if warnings > 0:
         sys.exit(2)
     else: