[gnome-builder/wip/libide] libide: build in tree for local device if already configured

[Christian Hergert <chergert src gnome org>]

commit 24d938e793102e4fe58a33548ffc50c05af83919
Author: Christian Hergert <christian hergert me>
Date:   Fri Feb 27 18:49:14 2015 -0800

    libide: build in tree for local device if already configured
    
    This makes things easier when you open a project that has already been
    configured to build in tree. Generally, we want to do out of tree builds
    so that we can build for exteranl devices without having to make distclean.
    But this reduces friction until we get there.

 libide/autotools/ide-autotools-builder.c |   95 ++++++++++++++++++++++-------
 libide/autotools/ide-autotools-builder.h |    8 +--
 2 files changed, 74 insertions(+), 29 deletions(-)
---
diff --git a/libide/autotools/ide-autotools-builder.c b/libide/autotools/ide-autotools-builder.c
index 970f5e4..84c53e1 100644
--- a/libide/autotools/ide-autotools-builder.c
+++ b/libide/autotools/ide-autotools-builder.c
@@ -24,6 +24,7 @@
 #include "ide-context.h"
 #include "ide-device.h"
 #include "ide-project.h"
+#include "ide-vcs.h"
 
 typedef struct
 {
@@ -31,8 +32,14 @@ typedef struct
   IdeDevice *device;
 } IdeAutotoolsBuilderPrivate;
 
-G_DEFINE_TYPE_WITH_PRIVATE (IdeAutotoolsBuilder, ide_autotools_builder,
-                            IDE_TYPE_BUILDER)
+struct _IdeAutotoolsBuilder
+{
+  IdeObject parent_instance;
+
+  /* TODO: Move private to instance fields */
+};
+
+G_DEFINE_TYPE_WITH_PRIVATE (IdeAutotoolsBuilder, ide_autotools_builder, IDE_TYPE_BUILDER)
 
 enum {
   PROP_0,
@@ -124,6 +131,67 @@ ide_autotools_builder_build_cb (GObject      *object,
   g_task_return_pointer (task, g_object_ref (build_result), g_object_unref);
 }
 
+/**
+ * ide_autotools_builder_get_build_directory:
+ *
+ * Gets the directory that will contain the generated makefiles and build root.
+ *
+ * Returns: (transfer full): A #GFile containing the build directory.
+ */
+GFile *
+ide_autotools_builder_get_build_directory (IdeAutotoolsBuilder *self)
+{
+  IdeAutotoolsBuilderPrivate *priv = ide_autotools_builder_get_instance_private (self);
+  g_autofree gchar *path = NULL;
+  IdeContext *context;
+  IdeProject *project;
+  const gchar *root_build_dir;
+  const gchar *project_name;
+  const gchar *device_id;
+  const gchar *system_type;
+
+  g_return_val_if_fail (IDE_IS_AUTOTOOLS_BUILDER (self), NULL);
+
+  context = ide_object_get_context (IDE_OBJECT (self));
+  device_id = ide_device_get_id (priv->device);
+
+  /*
+   * If this is the local device, we have a special workaround for building within the project
+   * tree. Generally we want to be doing out of tree builds, but a lot of people are going to
+   * fire up their project from jhbuild or similar, and build in tree.
+   *
+   * This workaround will let us continue building their project in that location, with the
+   * caveat that we will need to `make distclean` later if they want to build for another device.
+   */
+  if (0 == g_strcmp0 (device_id, "local"))
+    {
+      IdeVcs *vcs;
+      GFile *working_directory;
+      g_autoptr(GFile) configure_file = NULL;
+      g_autofree gchar *configure_path = NULL;
+
+      vcs = ide_context_get_vcs (context);
+      working_directory = ide_vcs_get_working_directory (vcs);
+      configure_file = g_file_get_child (working_directory, "configure");
+      configure_path = g_file_get_path (configure_file);
+
+      if (g_file_test (configure_path, G_FILE_TEST_IS_EXECUTABLE))
+        return g_object_ref (working_directory);
+    }
+
+  project = ide_context_get_project (context);
+  root_build_dir = ide_context_get_root_build_dir (context);
+  system_type = ide_device_get_system_type (priv->device);
+  project_name = ide_project_get_name (project);
+  path = g_build_filename (root_build_dir,
+                           project_name,
+                           device_id,
+                           system_type,
+                           NULL);
+
+  return g_file_new_for_path (path);
+}
+
 static void
 ide_autotools_builder_build_async (IdeBuilder           *builder,
                                    IdeBuildResult      **result,
@@ -135,15 +203,9 @@ ide_autotools_builder_build_async (IdeBuilder           *builder,
   IdeAutotoolsBuilder *self = (IdeAutotoolsBuilder *)builder;
   g_autoptr(IdeAutotoolsBuildTask) build_result = NULL;
   g_autoptr(GTask) task = NULL;
-  g_autofree gchar *build_dir = NULL;
   g_autoptr(GFile) directory = NULL;
-  const gchar *device_id;
-  const gchar *project_name;
-  const gchar *root_build_dir;
-  const gchar *system_type;
   IdeContext *context;
   IdeDevice *device;
-  IdeProject *project;
 
   g_return_if_fail (IDE_IS_AUTOTOOLS_BUILDER (builder));
   g_return_if_fail (IDE_IS_AUTOTOOLS_BUILDER (self));
@@ -152,22 +214,9 @@ ide_autotools_builder_build_async (IdeBuilder           *builder,
 
   task = g_task_new (self, cancellable, callback, user_data);
 
-  device = ide_autotools_builder_get_device (self);
-  device_id = ide_device_get_id (device);
-  system_type = ide_device_get_system_type (device);
-
   context = ide_object_get_context (IDE_OBJECT (builder));
-  root_build_dir = ide_context_get_root_build_dir (context);
-
-  project = ide_context_get_project (context);
-  project_name = ide_project_get_name (project);
-
-  build_dir = g_build_filename (root_build_dir,
-                                project_name,
-                                device_id,
-                                system_type,
-                                NULL);
-  directory = g_file_new_for_path (build_dir);
+  device = ide_autotools_builder_get_device (self);
+  directory = ide_autotools_builder_get_build_directory (self);
 
   build_result = g_object_new (IDE_TYPE_AUTOTOOLS_BUILD_TASK,
                                "context", context,
diff --git a/libide/autotools/ide-autotools-builder.h b/libide/autotools/ide-autotools-builder.h
index fe14552..fd48e4b 100644
--- a/libide/autotools/ide-autotools-builder.h
+++ b/libide/autotools/ide-autotools-builder.h
@@ -25,13 +25,9 @@ G_BEGIN_DECLS
 
 #define IDE_TYPE_AUTOTOOLS_BUILDER (ide_autotools_builder_get_type())
 
-G_DECLARE_DERIVABLE_TYPE (IdeAutotoolsBuilder, ide_autotools_builder,
-                          IDE, AUTOTOOLS_BUILDER, IdeBuilder)
+G_DECLARE_FINAL_TYPE (IdeAutotoolsBuilder, ide_autotools_builder, IDE, AUTOTOOLS_BUILDER, IdeBuilder)
 
-struct _IdeAutotoolsBuilderClass
-{
-  IdeBuilderClass parent;
-};
+GFile *ide_autotools_builder_get_build_directory (IdeAutotoolsBuilder *self);
 
 G_END_DECLS