[gnome-builder] autotools: stub build target provider

[Christian Hergert <chergert src gnome org>]

commit 1f578a3a849fdea5b1cc51014a077b1daaf90253
Author: Christian Hergert <chergert redhat com>
Date:   Sun Nov 19 21:09:52 2017 -0800

    autotools: stub build target provider

 .../ide-autotools-build-target-provider.c          |   96 ++++++++++++++++++++
 .../ide-autotools-build-target-provider.h          |   29 ++++++
 .../meson/gbp-meson-build-target-provider.c        |   13 +++
 3 files changed, 138 insertions(+), 0 deletions(-)
---
diff --git a/src/plugins/autotools/ide-autotools-build-target-provider.c 
b/src/plugins/autotools/ide-autotools-build-target-provider.c
new file mode 100644
index 0000000..599739e
--- /dev/null
+++ b/src/plugins/autotools/ide-autotools-build-target-provider.c
@@ -0,0 +1,96 @@
+/* ide-autotools-build-target-provider.c
+ *
+ * Copyright (C) 2017 Christian Hergert <chergert redhat com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#define G_LOG_DOMAIN "ide-autotools-build-target-provider"
+
+#include "ide-autotools-build-target-provider.h"
+
+struct _IdeAutotoolsBuildTargetProvider
+{
+  IdeObject parent_instance;
+};
+
+static void
+ide_autotools_build_target_provider_get_targets_async (IdeBuildTargetProvider *provider,
+                                                       GCancellable           *cancellable,
+                                                       GAsyncReadyCallback     callback,
+                                                       gpointer                user_data)
+{
+  IdeAutotoolsBuildTargetProvider *self = (IdeAutotoolsBuildTargetProvider *)provider;
+  g_autoptr(GTask) task = NULL;
+  IdeBuildSystem *build_system;
+  IdeContext *context;
+
+  IDE_ENTRY;
+
+  g_assert (IDE_IS_AUTOTOOLS_BUILD_TARGET_PROVIDER (self));
+  g_assert (!cancellable || G_IS_CANCELLABLE (cancellable));
+
+  task = g_task_new (self, cancellable, callback, user_data);
+  g_task_set_source_tag (task, ide_autotools_build_target_provider_get_targets_async);
+  g_task_set_priority (task, G_PRIORITY_LOW);
+
+  context = ide_object_get_context (IDE_OBJECT (self));
+  build_system = ide_context_get_build_system (context);
+
+  if (!IDE_IS_AUTOTOOLS_BUILD_SYSTEM (build_system))
+    {
+      g_task_return_new_error (task,
+                               G_IO_ERROR,
+                               G_IO_ERROR_NOT_SUPPORTED,
+                               "Not a meson build system, ignoring");
+      IDE_EXIT;
+    }
+
+  IDE_EXIT;
+}
+
+static GPtrArray *
+ide_autotools_build_target_provider_get_targets_finish (IdeBuildTargetProvider  *provider,
+                                                        GAsyncResult            *result,
+                                                        GError                 **error)
+{
+  g_assert (IDE_IS_AUTOTOOLS_BUILD_TARGET_PROVIDER (provider));
+  g_assert (G_IS_TASK (result));
+  g_assert (g_task_is_valid (G_TASK (result), provider));
+
+  return g_task_propagate_pointer (G_TASK (provider), error);
+}
+
+static void
+build_target_provider_iface_init (IdeBuildTargetProviderInterface *iface)
+{
+  iface->get_targets_async = ide_autotools_build_target_provider_get_targets_async;
+  iface->get_targets_finish = ide_autotools_build_target_provider_get_targets_finish;
+}
+
+G_DEFINE_TYPE_WITH_CODE (IdeAutotoolsBuildTargetProvider,
+                         ide_autotools_build_target_provider,
+                         IDE_TYPE_OBJECT,
+                         G_IMPLEMENT_INTERFACE (IDE_TYPE_BUILD_TARGET_PROVIDER,
+                                                build_target_provider_iface_init))
+
+static void
+ide_autotools_build_target_provider_class_init (IdeAutotoolsBuildTargetProviderClass *klass)
+{
+}
+
+static void
+ide_autotools_build_target_provider_init (IdeAutotoolsBuildTargetProvider *self)
+{
+}
diff --git a/src/plugins/autotools/ide-autotools-build-target-provider.h 
b/src/plugins/autotools/ide-autotools-build-target-provider.h
new file mode 100644
index 0000000..c6aca29
--- /dev/null
+++ b/src/plugins/autotools/ide-autotools-build-target-provider.h
@@ -0,0 +1,29 @@
+/* ide-autotools-build-target-provider.h
+ *
+ * Copyright (C) 2017 Christian Hergert <chergert redhat com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <ide.h>
+
+G_BEGIN_DECLS
+
+#define IDE_TYPE_AUTOTOOLS_BUILD_TARGET_PROVIDER (ide_autotools_build_target_provider_get_type())
+
+G_DECLARE_FINAL_TYPE (IdeAutotoolsBuildTargetProvider, ide_autotools_build_target_provider, IDE, 
AUTOTOOLS_BUILD_TARGET_PROVIDER, IdeObject)
+
+G_END_DECLS
diff --git a/src/plugins/meson/gbp-meson-build-target-provider.c 
b/src/plugins/meson/gbp-meson-build-target-provider.c
index be7dc2b..8c81659 100644
--- a/src/plugins/meson/gbp-meson-build-target-provider.c
+++ b/src/plugins/meson/gbp-meson-build-target-provider.c
@@ -20,6 +20,7 @@
 
 #include <json-glib/json-glib.h>
 
+#include "gbp-meson-build-system.h"
 #include "gbp-meson-build-target.h"
 #include "gbp-meson-build-target-provider.h"
 
@@ -314,6 +315,7 @@ gbp_meson_build_target_provider_get_targets_async (IdeBuildTargetProvider *provi
   g_autoptr(GTask) task = NULL;
   IdeBuildPipeline *pipeline;
   IdeBuildManager *build_manager;
+  IdeBuildSystem *build_system;
   IdeContext *context;
 
   IDE_ENTRY;
@@ -326,6 +328,17 @@ gbp_meson_build_target_provider_get_targets_async (IdeBuildTargetProvider *provi
   g_task_set_priority (task, G_PRIORITY_LOW);
 
   context = ide_object_get_context (IDE_OBJECT (self));
+  build_system = ide_context_get_build_system (context);
+
+  if (!GBP_IS_MESON_BUILD_SYSTEM (build_system))
+    {
+      g_task_return_new_error (task,
+                               G_IO_ERROR,
+                               G_IO_ERROR_NOT_SUPPORTED,
+                               "Not a meson build system, ignoring");
+      IDE_EXIT;
+    }
+
   build_manager = ide_context_get_build_manager (context);
   pipeline = ide_build_manager_get_pipeline (build_manager);