[gnome-builder] buildsystem: add ide_build_system_get_id() vfunc

[Christian Hergert <chergert src gnome org>]

commit 7a59c3af68c21d9aa13d359ef4e003532c32ec0c
Author: Christian Hergert <chergert redhat com>
Date:   Mon Mar 13 15:13:56 2017 -0700

    buildsystem: add ide_build_system_get_id() vfunc
    
    This allows for specifying a small identifier for the build system type
    such as "autotools" or "cmake" or "meson" or "cargo".
    
    We can use this in future patches for matching up a build system with
    a given load hint.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=780006

 libide/buildsystem/ide-build-system.c          |   11 +++++++++++
 libide/buildsystem/ide-build-system.h          |    2 ++
 plugins/autotools/ide-autotools-build-system.c |    7 +++++++
 plugins/cargo/cargo_plugin.py                  |    3 +++
 plugins/cmake/cmake_plugin/__init__.py         |    3 +++
 plugins/meson/meson_plugin/__init__.py         |    3 +++
 6 files changed, 29 insertions(+), 0 deletions(-)
---
diff --git a/libide/buildsystem/ide-build-system.c b/libide/buildsystem/ide-build-system.c
index 9b0d064..615ed4b 100644
--- a/libide/buildsystem/ide-build-system.c
+++ b/libide/buildsystem/ide-build-system.c
@@ -318,3 +318,14 @@ ide_build_system_get_builddir (IdeBuildSystem   *self,
 
   IDE_RETURN (ret);
 }
+
+gchar *
+ide_build_system_get_id (IdeBuildSystem *self)
+{
+  g_return_val_if_fail (IDE_IS_BUILD_SYSTEM (self), NULL);
+
+  if (IDE_BUILD_SYSTEM_GET_IFACE (self)->get_id)
+    return IDE_BUILD_SYSTEM_GET_IFACE (self)->get_id (self);
+
+  return g_strdup (G_OBJECT_TYPE_NAME (self));
+}
diff --git a/libide/buildsystem/ide-build-system.h b/libide/buildsystem/ide-build-system.h
index 1fd05af..f5d00ec 100644
--- a/libide/buildsystem/ide-build-system.h
+++ b/libide/buildsystem/ide-build-system.h
@@ -51,8 +51,10 @@ struct _IdeBuildSystemInterface
                                            GError              **error);
   gchar      *(*get_builddir)             (IdeBuildSystem       *self,
                                            IdeConfiguration     *configuration);
+  gchar      *(*get_id)                   (IdeBuildSystem       *self);
 };
 
+gchar          *ide_build_system_get_id                   (IdeBuildSystem       *self);
 void            ide_build_system_new_async                (IdeContext           *context,
                                                            GFile                *project_file,
                                                            GCancellable         *cancellable,
diff --git a/plugins/autotools/ide-autotools-build-system.c b/plugins/autotools/ide-autotools-build-system.c
index beca8c5..75ea1cb 100644
--- a/plugins/autotools/ide-autotools-build-system.c
+++ b/plugins/autotools/ide-autotools-build-system.c
@@ -638,6 +638,12 @@ ide_autotools_build_system_get_builddir (IdeBuildSystem   *build_system,
   return NULL;
 }
 
+static gchar *
+ide_autotools_build_system_get_id (IdeBuildSystem *build_system)
+{
+  return g_strdup ("autotools");
+}
+
 static void
 ide_autotools_build_system_finalize (GObject *object)
 {
@@ -702,6 +708,7 @@ build_system_iface_init (IdeBuildSystemInterface *iface)
   iface->get_builddir = ide_autotools_build_system_get_builddir;
   iface->get_build_targets_async = ide_autotools_build_system_get_build_targets_async;
   iface->get_build_targets_finish = ide_autotools_build_system_get_build_targets_finish;
+  iface->get_id = ide_autotools_build_system_get_id;
 }
 
 static void
diff --git a/plugins/cargo/cargo_plugin.py b/plugins/cargo/cargo_plugin.py
index d926044..6eed797 100644
--- a/plugins/cargo/cargo_plugin.py
+++ b/plugins/cargo/cargo_plugin.py
@@ -34,6 +34,9 @@ _CARGO = 'cargo'
 class CargoBuildSystem(Ide.Object, Ide.BuildSystem, Gio.AsyncInitable):
     project_file = GObject.Property(type=Gio.File)
 
+    def get_id(self):
+        return 'cargo'
+
     def do_init_async(self, io_priority, cancellable, callback, data):
         task = Gio.Task.new(self, cancellable, callback)
 
diff --git a/plugins/cmake/cmake_plugin/__init__.py b/plugins/cmake/cmake_plugin/__init__.py
index 2d9cf49..9605c10 100644
--- a/plugins/cmake/cmake_plugin/__init__.py
+++ b/plugins/cmake/cmake_plugin/__init__.py
@@ -31,6 +31,9 @@ _NINJA_NAMES = [ 'ninja-build', 'ninja' ]
 class CMakeBuildSystem(Ide.Object, Ide.BuildSystem, Gio.AsyncInitable):
     project_file = GObject.Property(type=Gio.File)
 
+    def get_id(self):
+        return 'cmake'
+
     def do_init_async(self, priority, cancel, callback, data=None):
         task = Gio.Task.new(self, cancel, callback)
         task.set_priority(priority)
diff --git a/plugins/meson/meson_plugin/__init__.py b/plugins/meson/meson_plugin/__init__.py
index 9a7da2d..307c036 100644
--- a/plugins/meson/meson_plugin/__init__.py
+++ b/plugins/meson/meson_plugin/__init__.py
@@ -59,6 +59,9 @@ def extract_flags(command: str, builddir: str):
 class MesonBuildSystem(Ide.Object, Ide.BuildSystem, Gio.AsyncInitable):
     project_file = GObject.Property(type=Gio.File)
 
+    def get_id(self):
+        return 'meson'
+
     def do_init_async(self, priority, cancel, callback, data=None):
         task = Gio.Task.new(self, cancel, callback)
         task.set_priority(priority)