[gnome-builder] clang: add initialize operation to set workdir

[Christian Hergert <chergert src gnome org>]

commit 9419c53109a623c7ec959a3ba95380bab2aa1f66
Author: Christian Hergert <chergert redhat com>
Date:   Fri Apr 20 03:47:25 2018 -0700

    clang: add initialize operation to set workdir
    
    We'll need this to do diagnostic creation, so add an initialize operation
    that matches language server.

 src/plugins/clang/gnome-builder-clang.c | 36 ++++++++++++++++++++++++++++
 src/plugins/clang/ide-clang.c           | 26 +++++++++++++++++++-
 src/plugins/clang/ide-clang.h           |  2 ++
 src/plugins/clang/test-daemon.c         | 42 +++++++++++++++++++++++++++++++++
 4 files changed, 105 insertions(+), 1 deletion(-)
---
diff --git a/src/plugins/clang/gnome-builder-clang.c b/src/plugins/clang/gnome-builder-clang.c
index 4d91a771d..5620aa10a 100644
--- a/src/plugins/clang/gnome-builder-clang.c
+++ b/src/plugins/clang/gnome-builder-clang.c
@@ -316,6 +316,37 @@ handle_diagnose (JsonrpcServer *server,
                             client_op_ref (op));
 }
 
+/* Initialize {{{1 */
+
+static void
+handle_initialize (JsonrpcServer *server,
+                   JsonrpcClient *client,
+                   const gchar   *method,
+                   GVariant      *id,
+                   GVariant      *params,
+                   IdeClang      *clang)
+{
+  g_autoptr(ClientOp) op = NULL;
+  const gchar *uri = NULL;
+
+  g_assert (JSONRPC_IS_SERVER (server));
+  g_assert (JSONRPC_IS_CLIENT (client));
+  g_assert (g_str_equal (method, "initialize"));
+  g_assert (id != NULL);
+  g_assert (IDE_IS_CLANG (clang));
+
+  op = client_op_new (client, id);
+
+  if (JSONRPC_MESSAGE_PARSE (params, "rootUri", JSONRPC_MESSAGE_GET_STRING (&uri)))
+    {
+      g_autoptr(GFile) file = g_file_new_for_uri (uri);
+
+      ide_clang_set_workdir (clang, file);
+    }
+
+  client_op_reply (op, NULL);
+}
+
 /* Main and Server Setup {{{1 */
 
 static void
@@ -372,6 +403,11 @@ main (gint argc,
                     G_CALLBACK (on_client_closed_cb),
                     NULL);
 
+  jsonrpc_server_add_handler (server,
+                              "initialize",
+                              (JsonrpcServerHandler)handle_initialize,
+                              g_object_ref (clang),
+                              g_object_unref);
   jsonrpc_server_add_handler (server,
                               "clang/indexFile",
                               (JsonrpcServerHandler)handle_index_file,
diff --git a/src/plugins/clang/ide-clang.c b/src/plugins/clang/ide-clang.c
index cf7014907..af8f466ca 100644
--- a/src/plugins/clang/ide-clang.c
+++ b/src/plugins/clang/ide-clang.c
@@ -27,7 +27,8 @@
 
 struct _IdeClang
 {
-  GObject parent;
+  GObject  parent;
+  GFile   *workdir;
 };
 
 G_DEFINE_TYPE (IdeClang, ide_clang, G_TYPE_OBJECT)
@@ -84,9 +85,22 @@ ide_clang_cook_flags (const gchar * const *flags)
   return (gchar **)g_ptr_array_free (cooked, FALSE);
 }
 
+static void
+ide_clang_finalize (GObject *object)
+{
+  IdeClang *self = (IdeClang *)object;
+
+  g_clear_object (&self->workdir);
+
+  G_OBJECT_CLASS (ide_clang_parent_class)->finalize (object);
+}
+
 static void
 ide_clang_class_init (IdeClangClass *klass)
 {
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+  object_class->finalize = ide_clang_finalize;
 }
 
 static void
@@ -100,6 +114,16 @@ ide_clang_new (void)
   return g_object_new (IDE_TYPE_CLANG, NULL);
 }
 
+void
+ide_clang_set_workdir (IdeClang *self,
+                       GFile    *workdir)
+{
+  g_return_if_fail (IDE_IS_CLANG (self));
+  g_return_if_fail (!workdir || G_IS_FILE (workdir));
+
+  g_set_object (&self->workdir, workdir);
+}
+
 /* Index File {{{1 */
 
 typedef struct
diff --git a/src/plugins/clang/ide-clang.h b/src/plugins/clang/ide-clang.h
index 739be0114..d30e7f6be 100644
--- a/src/plugins/clang/ide-clang.h
+++ b/src/plugins/clang/ide-clang.h
@@ -27,6 +27,8 @@ G_BEGIN_DECLS
 G_DECLARE_FINAL_TYPE (IdeClang, ide_clang, IDE, CLANG, GObject)
 
 IdeClang  *ide_clang_new               (void);
+void       ide_clang_set_workdir       (IdeClang             *self,
+                                        GFile                *workdir);
 void       ide_clang_index_file_async  (IdeClang             *self,
                                         const gchar          *path,
                                         const gchar * const  *argv,
diff --git a/src/plugins/clang/test-daemon.c b/src/plugins/clang/test-daemon.c
index d9b3b54a0..5285e2687 100644
--- a/src/plugins/clang/test-daemon.c
+++ b/src/plugins/clang/test-daemon.c
@@ -8,6 +8,8 @@ typedef void (*TestFunc) (JsonrpcClient *client,
                           GTask         *task);
 
 static void tick_tests      (JsonrpcClient *client);
+static void test_initialize (JsonrpcClient *client,
+                             GTask         *task);
 static void test_diagnose   (JsonrpcClient *client,
                              GTask         *task);
 static void test_index_file (JsonrpcClient *client,
@@ -17,6 +19,7 @@ static gchar **flags;
 static const gchar *path;
 static GMainLoop *main_loop;
 static TestFunc test_funcs[] = {
+  test_initialize,
   test_diagnose,
   test_index_file,
 };
@@ -99,6 +102,45 @@ test_diagnose (JsonrpcClient *client,
                              g_object_ref (task));
 }
 
+static void
+test_initialize_cb (GObject      *object,
+                    GAsyncResult *result,
+                    gpointer      user_data)
+{
+  JsonrpcClient *client = (JsonrpcClient *)object;
+  g_autoptr(GTask) task = user_data;
+  g_autoptr(GVariant) reply = NULL;
+  g_autoptr(GError) error = NULL;
+
+  g_assert (G_IS_TASK (task));
+
+  if (!jsonrpc_client_call_finish (client, result, &reply, &error))
+    g_error ("initialize: %s", error->message);
+
+  g_printerr ("initialize: %s\n", g_variant_print (reply, TRUE));
+
+  g_task_return_boolean (task, TRUE);
+}
+
+static void
+test_initialize (JsonrpcClient *client,
+                 GTask         *task)
+{
+  g_autoptr(GVariant) params = NULL;
+  g_autofree gchar *root = NULL;
+
+  root = g_path_get_dirname (path);
+
+  params = JSONRPC_MESSAGE_NEW ("rootUri", JSONRPC_MESSAGE_PUT_STRING (root));
+
+  jsonrpc_client_call_async (client,
+                             "initialize",
+                             params,
+                             NULL,
+                             test_initialize_cb,
+                             g_object_ref (task));
+}
+
 static void
 finished_cb (GObject      *object,
              GAsyncResult *result,