[gnome-builder/1074-vala-language-server-add-support-using-gvls: 21/23] GVls: initial work for Vala Server configuration response

[Daniel Espinosa Ortiz <despinosa src gnome org>]

commit 4804520a5b12adf77e61c83ca1f61a0269e0b6eb
Author: Daniel Espinosa Ortiz <esodan gmail com>
Date:   Thu Dec 5 08:57:33 2019 -0600

    GVls: initial work for Vala Server configuration response

 src/plugins/gvls/gvls_plugin.py | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)
---
diff --git a/src/plugins/gvls/gvls_plugin.py b/src/plugins/gvls/gvls_plugin.py
index 8cc06fb63..9ba613df0 100644
--- a/src/plugins/gvls/gvls_plugin.py
+++ b/src/plugins/gvls/gvls_plugin.py
@@ -116,6 +116,37 @@ class GVlsService(Ide.Object):
             self._supervisor.set_launcher(launcher)
             self._supervisor.start()
 
+            ## Construct GVls Configuration response at `initialize`
+            self._client.connect('load-configuration', _on_load_configuration)
+
+    def _on_load_configuration(self):
+        conf = GLib.VariantBuilder (GLib.Variant ('a{sv}'))
+        conf.add ('{sv}', 'initialized', GLib.Variant.boolean (True))
+        conf.add ('{sv}', 'initialized', GLib.Variant.boolean (True))
+        conf.add ('{sv}', 'defaultNamespaces', GLib.Variant.boolean (True))
+        conf.add ('{sv}', 'defaultVapiDirs', GLib.Variant.boolean (True))
+        conf.add ('{sv}', 'scanWorkspace', GLib.Variant.boolean (True))
+        conf.add ('{sv}', 'addUsingNamespaces', GLib.Variant.boolean (True))
+
+        pkgs = GLib.VariantBuilder (GLib.Variant ('av'))
+        # Get from build environment
+        # pkgs.add ('v', GLib.Variant.string ())
+
+        vargs = GLib.VariantBuilder (GLib.Variant ('av'))
+        # Get from build environment
+        # vargs.add ('v', GLib.Variant.string ())
+
+        opts = GLib.VariantBuilder (GLib.Variant ('av'))
+        # Get from build environment
+        # vargs.add ('v', GLib.Variant.string ())
+
+        conf.add ('{sv}', 'packages', pkgs)
+        conf.add ('{sv}', 'valaArgs', vargs)
+        conf.add ('{sv}', 'options', opts)
+
+        conf.end ()
+        return conf
+
     def _gvls_spawned(self, supervisor, subprocess):
         """
         This callback is executed when the `org.gnome.gvls.stdio.Server` process is spawned.