Make Static Override optional/hidden by default.

That feature will not be ready (or at least, not tested enough) to be
officially part of 2.80 beta. So we disable it by default, hidding it
behind a startup option (`--enable-static-override`), and a python
app var (`bpy.app.use_static_override`).

That way, people who really want to play with it can do it easily, while
not exposing/enabling non-production-ready feature by default.

Note that underlying override code remains active, i.e. files we do have
overridden data-blocks will be loaded correctly according to static override.

1 files changed, 26 insertions, 0 deletions

diff --git a/source/blender/python/intern/bpy_app.c b/source/blender/python/intern/bpy_app.c
index 3aad4dcde34..d8c74bdf565 100644
--- a/source/blender/python/intern/bpy_app.c
+++ b/source/blender/python/intern/bpy_app.c
@@ -55,6 +55,7 @@
 #include "BKE_appdir.h"
 #include "BKE_blender_version.h"
 #include "BKE_global.h"
+#include "BKE_library_override.h"
 
 #include "DNA_ID.h"
 
@@ -358,6 +359,29 @@ static PyObject *bpy_app_autoexec_fail_message_get(PyObject *UNUSED(self), void
 }
 
 
+PyDoc_STRVAR(bpy_app_use_static_override_doc,
+"Boolean, whether static override is exposed in UI or not."
+);
+static PyObject *bpy_app_use_static_override_get(PyObject *UNUSED(self), void *UNUSED(closure))
+{
+	return PyBool_FromLong((long)BKE_override_static_is_enabled());
+}
+
+static int bpy_app_use_static_override_set(PyObject *UNUSED(self), PyObject *value, void *UNUSED(closure))
+{
+	const int param = PyC_Long_AsBool(value);
+
+	if (param == -1 && PyErr_Occurred()) {
+		PyErr_SetString(PyExc_TypeError, "bpy.app.use_static_override must be a boolean");
+		return -1;
+	}
+
+	BKE_override_static_enable((const bool)param);
+
+	return 0;
+}
+
+
 static PyGetSetDef bpy_app_getsets[] = {
 	{(char *)"debug",           bpy_app_debug_get, bpy_app_debug_set, (char *)bpy_app_debug_doc, (void *)G_DEBUG},
 	{(char *)"debug_ffmpeg",    bpy_app_debug_get, bpy_app_debug_set, (char *)bpy_app_debug_doc, (void *)G_DEBUG_FFMPEG},
@@ -376,6 +400,8 @@ static PyGetSetDef bpy_app_getsets[] = {
 	{(char *)"debug_gpumem",    bpy_app_debug_get, bpy_app_debug_set, (char *)bpy_app_debug_doc, (void *)G_DEBUG_GPU_MEM},
 	{(char *)"debug_io",        bpy_app_debug_get, bpy_app_debug_set, (char *)bpy_app_debug_doc, (void *)G_DEBUG_IO},
 
+	{(char *)"use_static_override", bpy_app_use_static_override_get, bpy_app_use_static_override_set, (char *)bpy_app_use_static_override_doc, NULL},
+
 	{(char *)"binary_path_python", bpy_app_binary_path_python_get, NULL, (char *)bpy_app_binary_path_python_doc, NULL},
 
 	{(char *)"debug_value", bpy_app_debug_value_get, bpy_app_debug_value_set, (char *)bpy_app_debug_value_doc, NULL},