[gnome-builder] vcs-monitor: reload cached files when VCS reloads

[Christian Hergert <chergert src gnome org>]

commit ecd416f5947333e1feef190f7109798ae628c5d2
Author: Christian Hergert <chergert redhat com>
Date:   Tue Dec 19 16:26:06 2017 -0800

    vcs-monitor: reload cached files when VCS reloads
    
    If the IdeVcs changes, we need to clear our cached status and
    update so we pull in the changed index data.

 src/libide/vcs/ide-vcs-monitor.c |   27 +++++++++++++++++++++++++++
 1 files changed, 27 insertions(+), 0 deletions(-)
---
diff --git a/src/libide/vcs/ide-vcs-monitor.c b/src/libide/vcs/ide-vcs-monitor.c
index 76490a5..0e47222 100644
--- a/src/libide/vcs/ide-vcs-monitor.c
+++ b/src/libide/vcs/ide-vcs-monitor.c
@@ -211,6 +211,22 @@ ide_vcs_monitor_changed_cb (IdeVcsMonitor           *self,
   IDE_EXIT;
 }
 
+static void
+ide_vcs_monitor_vcs_changed_cb (IdeVcsMonitor *self,
+                                IdeVcs        *vcs)
+{
+  IDE_ENTRY;
+
+  g_assert (IDE_IS_VCS_MONITOR (self));
+  g_assert (IDE_IS_VCS (vcs));
+
+  /* Everything is invalidated by new VCS index, reload now */
+  g_clear_pointer (&self->status_by_file, g_hash_table_unref);
+  ide_vcs_monitor_queue_reload (self);
+
+  IDE_EXIT;
+}
+
 static gboolean
 ide_vcs_monitor_ignore_func (GFile    *file,
                              gpointer  data)
@@ -250,9 +266,20 @@ static void
 ide_vcs_monitor_constructed (GObject *object)
 {
   IdeVcsMonitor *self = (IdeVcsMonitor *)object;
+  IdeContext *context;
+  IdeVcs *vcs;
 
   G_OBJECT_CLASS (ide_vcs_monitor_parent_class)->constructed (object);
 
+  context = ide_object_get_context (IDE_OBJECT (self));
+  vcs = ide_context_get_vcs (context);
+
+  g_signal_connect_object (vcs,
+                           "changed",
+                           G_CALLBACK (ide_vcs_monitor_vcs_changed_cb),
+                           self,
+                           G_CONNECT_SWAPPED);
+
   self->monitor = dzl_recursive_file_monitor_new (self->root);
 
   dzl_recursive_file_monitor_set_ignore_func (self->monitor,