python interface to get mb patches

source/blender/mblender/MB_blender.cc

@@ -6,6 +6,8 @@
 
 #include <boost/preprocessor/if.hpp>
 
+#include <BLI_assert.h>
+
 #include <stdio.h>
 #include <string.h>
 
@@ -36,6 +38,9 @@ void MB_patches_discover()
     BOOST_PP_IF(MB_0019_APPLIED, strcpy(patches[i++], "MB_0019"), );
     BOOST_PP_IF(MB_0020_APPLIED, strcpy(patches[i++], "MB_0020"), );
 
+    // Not necessary becuase initialitzed to {0}
+    strcpy(patches[i++], "\0");
+
     return;
 }
 
@@ -43,8 +48,9 @@ void MB_init(void) {
     MB_patches_discover();
 }
 
-char** MB_patches_get() {
-    return (char**) patches;
+const char* MB_patch_get(int pos) {
+  BLI_assert(pos < MAX_MB_PATCHES);
+  return *patches[pos] == '\0' ? nullptr : patches[pos];
 }
 
 void MB_print_info()
@@ -52,9 +58,10 @@ void MB_print_info()
     printf("%s", "Mechanical Blender Info\n");
     printf("%s", "---------------------\n");
     for (int i = 0; i < MAX_MB_PATCHES; i++) {
-        if (*patches[i] != '\0') {
-            printf("Applied Patch %s\n", patches[i]);
+        if (*patches[i] == '\0') {
+            break;
         }
+        printf("Applied Patch %s\n", patches[i]);
     }
     printf("%s", "---------------------\n");
 }

source/blender/mblender/MB_blender.h

@@ -7,7 +7,7 @@
 
 void MB_init(void);
 void MB_patches_discover(void);
-void MB_patches_get(void);
+const char* MB_patch_get(int pos);
 void MB_print_info(void);
 
 #endif

source/blender/python/intern/CMakeLists.txt

@@ -16,6 +16,7 @@ set(INC
   ../../windowmanager
   ../../../../intern/mantaflow/extern
   ../../../../intern/opencolorio
+  ../../mblender
   # RNA_prototypes.h
   ${CMAKE_BINARY_DIR}/source/blender/makesrna
 )
@@ -40,6 +41,7 @@ set(SRC
   bpy_app_timers.cc
   bpy_app_translations.cc
   bpy_app_usd.cc
+  bpy_app_mblender.cc
   bpy_capi_utils.cc
   bpy_driver.cc
   bpy_gizmo_wrap.cc
@@ -87,6 +89,7 @@ set(SRC
   bpy_app_timers.h
   bpy_app_translations.h
   bpy_app_usd.h
+  bpy_app_mblender.h
   bpy_capi_utils.h
   bpy_driver.h
   bpy_gizmo_wrap.h
@@ -128,6 +131,7 @@ set(LIB
   PRIVATE bf::intern::guardedalloc
   PRIVATE bf::animrig
   bf_python_gpu
+  mblender
 
   ${PYTHON_LINKFLAGS}
   ${PYTHON_LIBRARIES}

source/blender/python/intern/bpy_app.cc

@@ -23,6 +23,7 @@
 #include "bpy_app_openvdb.h"
 #include "bpy_app_sdl.h"
 #include "bpy_app_usd.h"
+#include "bpy_app_mblender.h"
 
 #include "bpy_app_translations.h"
 
@@ -116,6 +117,7 @@ static PyStructSequence_Field app_info_fields[] = {
     {"build_options", "A set containing most important enabled optional build features"},
     {"handlers", "Application handler callbacks"},
     {"translations", "Application and addons internationalization API"},
+    {"mblender", "Mechanical Blender"},
 
     /* Modules (not struct sequence). */
     {"icons", "Manage custom icons"},
@@ -200,6 +202,7 @@ static PyObject *make_app_info()
   SetObjItem(BPY_app_build_options_struct());
   SetObjItem(BPY_app_handlers_struct());
   SetObjItem(BPY_app_translations_struct());
+  SetObjItem(BPY_app_mblender_struct());
 
   /* modules */
   SetObjItem(BPY_app_icons_module());

source/blender/python/intern/bpy_app_mblender.cc

@@ -0,0 +1,71 @@
+/* SPDX-FileCopyrightText: 2023 Blender Authors
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later */
+
+/** \file
+ * \ingroup pythonintern
+ */
+
+#include <Python.h>
+
+#include "BLI_utildefines.h"
+
+#include "bpy_app_mblender.h"
+
+#include "MB_blender.h"
+
+static PyTypeObject BlenderAppMblenderType;
+
+static PyStructSequence_Field app_mblender_info_fields[] = {
+    {"patches", nullptr},
+    {nullptr},
+};
+
+static PyStructSequence_Desc app_mblender_info_desc = {
+    "bpy.app.mblender",                                                /* name */
+    "This module contains information about options blender is built with", /* doc */
+    app_mblender_info_fields,                                              /* fields */
+    ARRAY_SIZE(app_mblender_info_fields) - 1,
+};
+
+static PyObject *make_mblender_info()
+{
+  PyObject *mblender_info;
+  PyObject *list;
+  int pos=0;
+  char **patches;
+  
+  mblender_info = PyStructSequence_New(&BlenderAppMblenderType);
+  if (mblender_info == nullptr) {
+    return nullptr;
+  }
+  
+  list = PyList_New(0);
+  
+  PyStructSequence_SET_ITEM(mblender_info, pos++, list);
+  
+  
+  for (char** p = MB_patches_get();  *p ;p++) {
+    PyList_Append(list, PyUnicode_FromString(*p));
+  }
+  
+
+  return mblender_info;
+}
+
+PyObject *BPY_app_mblender_struct()
+{
+  PyObject *ret;
+
+  PyStructSequence_InitType(&BlenderAppMblenderType, &app_mblender_info_desc);
+
+  ret = make_mblender_info();
+
+  /* prevent user from creating new instances */
+  BlenderAppMblenderType.tp_init = nullptr;
+  BlenderAppMblenderType.tp_new = nullptr;
+  /* Without this we can't do `set(sys.modules)` #29635. */
+  BlenderAppMblenderType.tp_hash = (hashfunc)_Py_HashPointer;
+
+  return ret;
+}

source/blender/python/intern/bpy_app_mblender.h

@@ -0,0 +1,19 @@
+/* SPDX-FileCopyrightText: 2023 Blender Authors
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later */
+
+/** \file
+ * \ingroup pythonintern
+ */
+
+#pragma once
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+PyObject *BPY_app_mblender_struct(void);
+
+#ifdef __cplusplus
+}
+#endif