Cleanup split creator.c

creator.c was getting hard to follow.

- Split off argument and signal handling into own files.
- Move docstrings next to functions (to keep docs grouped with code).

1 files changed, 1672 insertions, 0 deletions

diff --git a/source/creator/creator_args.c b/source/creator/creator_args.c
new file mode 100644
index 00000000000..c70f275d540
--- /dev/null
+++ b/source/creator/creator_args.c
@@ -0,0 +1,1672 @@
+/*
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * 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 2
+ * 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, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+/** \file creator/creator_args.c
+ *  \ingroup creator
+ */
+
+#ifndef WITH_PYTHON_MODULE
+
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+
+#include "MEM_guardedalloc.h"
+
+#ifdef WIN32
+#  include "BLI_winstuff.h"
+#endif
+
+#include "BLI_args.h"
+#include "BLI_threads.h"
+#include "BLI_utildefines.h"
+#include "BLI_listbase.h"
+#include "BLI_string.h"
+#include "BLI_string_utf8.h"
+#include "BLI_path_util.h"
+#include "BLI_fileops.h"
+#include "BLI_mempool.h"
+
+#include "BKE_blender.h"
+#include "BKE_context.h"
+
+#include "BKE_global.h"
+#include "BKE_library.h"
+#include "BKE_main.h"
+#include "BKE_scene.h"
+#include "BKE_report.h"
+#include "BKE_sound.h"
+#include "BKE_image.h"
+
+#include "DEG_depsgraph.h"
+
+#ifdef WITH_FFMPEG
+#include "IMB_imbuf.h"
+#endif
+
+#ifdef WITH_PYTHON
+#include "BPY_extern.h"
+#endif
+
+#include "RE_engine.h"
+#include "RE_pipeline.h"
+
+#include "ED_datafiles.h"
+
+#include "WM_api.h"
+
+#include "GPU_draw.h"
+#include "GPU_extensions.h"
+
+/* for passing information between creator and gameengine */
+#ifdef WITH_GAMEENGINE
+#  include "BL_System.h"
+#else /* dummy */
+#  define SYS_SystemHandle int
+#endif
+
+#ifdef WITH_LIBMV
+#  include "libmv-capi.h"
+#endif
+
+#ifdef WITH_CYCLES_LOGGING
+#  include "CCL_api.h"
+#endif
+
+#include "creator_intern.h"  /* own include */
+
+
+/* -------------------------------------------------------------------- */
+
+/** \name Utility String Parsing
+ * \{ */
+
+static bool parse_int_relative(
+        const char *str, int pos, int neg,
+        int *r_value, const char **r_err_msg)
+{
+	char *str_end = NULL;
+	long value;
+
+	errno = 0;
+
+	switch (*str) {
+		case '+':
+			value = pos + strtol(str + 1, &str_end, 10);
+			break;
+		case '-':
+			value = (neg - strtol(str + 1, &str_end, 10)) + 1;
+			break;
+		default:
+			value = strtol(str, &str_end, 10);
+			break;
+	}
+
+
+	if (*str_end != '\0') {
+		static const char *msg = "not a number";
+		*r_err_msg = msg;
+		return false;
+	}
+	else if ((errno == ERANGE) || ((value < INT_MIN || value > INT_MAX))) {
+		static const char *msg = "exceeds range";
+		*r_err_msg = msg;
+		return false;
+	}
+	else {
+		*r_value = (int)value;
+		return true;
+	}
+}
+
+static bool parse_int_relative_clamp(
+        const char *str, int pos, int neg, int min, int max,
+        int *r_value, const char **r_err_msg)
+{
+	if (parse_int_relative(str, pos, neg, r_value, r_err_msg)) {
+		CLAMP(*r_value, min, max);
+		return true;
+	}
+	else {
+		return false;
+	}
+}
+
+/**
+ * No clamping, fails with any number outside the range.
+ */
+static bool parse_int_strict_range(
+        const char *str, const int min, const int max,
+        int *r_value, const char **r_err_msg)
+{
+	char *str_end = NULL;
+	long value;
+
+	errno = 0;
+	value = strtol(str, &str_end, 10);
+
+	if (*str_end != '\0') {
+		static const char *msg = "not a number";
+		*r_err_msg = msg;
+		return false;
+	}
+	else if ((errno == ERANGE) || ((value < min || value > max))) {
+		static const char *msg = "exceeds range";
+		*r_err_msg = msg;
+		return false;
+	}
+	else {
+		*r_value = (int)value;
+		return true;
+	}
+}
+
+static bool parse_int(
+        const char *str,
+        int *r_value, const char **r_err_msg)
+{
+	return parse_int_strict_range(str, INT_MIN, INT_MAX, r_value, r_err_msg);
+}
+
+static bool parse_int_clamp(
+        const char *str, int min, int max,
+        int *r_value, const char **r_err_msg)
+{
+	if (parse_int(str, r_value, r_err_msg)) {
+		CLAMP(*r_value, min, max);
+		return true;
+	}
+	else {
+		return false;
+	}
+}
+
+/** \} */
+
+
+/* -------------------------------------------------------------------- */
+
+#ifdef WITH_PYTHON
+
+/** \name Utilities Python Context Macro (#BPY_CTX_SETUP)
+ * \{ */
+struct BlendePyContextStore {
+	wmWindowManager *wm;
+	Scene *scene;
+	wmWindow *win;
+	bool has_win;
+};
+
+static void arg_py_context_backup(
+        bContext *C, struct BlendePyContextStore *c_py,
+        const char *script_id)
+{
+	c_py->wm = CTX_wm_manager(C);
+	c_py->scene = CTX_data_scene(C);
+	c_py->has_win = !BLI_listbase_is_empty(&c_py->wm->windows);
+	if (c_py->has_win) {
+		c_py->win = CTX_wm_window(C);
+		CTX_wm_window_set(C, c_py->wm->windows.first);
+	}
+	else {
+		c_py->win = NULL;
+		fprintf(stderr, "Python script \"%s\" "
+		        "running with missing context data.\n", script_id);
+	}
+}
+
+static void arg_py_context_restore(
+        bContext *C, struct BlendePyContextStore *c_py)
+{
+	/* script may load a file, check old data is valid before using */
+	if (c_py->has_win) {
+		if ((c_py->win == NULL) ||
+		    ((BLI_findindex(&G.main->wm, c_py->wm) != -1) &&
+		     (BLI_findindex(&c_py->wm->windows, c_py->win) != -1)))
+		{
+			CTX_wm_window_set(C, c_py->win);
+		}
+	}
+
+	if ((c_py->scene == NULL) ||
+	    BLI_findindex(&G.main->scene, c_py->scene) != -1)
+	{
+		CTX_data_scene_set(C, c_py->scene);
+	}
+}
+
+/* macro for context setup/reset */
+#define BPY_CTX_SETUP(_cmd) \
+	{ \
+		struct BlendePyContextStore py_c; \
+		arg_py_context_backup(C, &py_c, argv[1]); \
+		{ _cmd; } \
+		arg_py_context_restore(C, &py_c); \
+	} ((void)0)
+
+#endif /* WITH_PYTHON */
+
+/** \} */
+
+
+/* -------------------------------------------------------------------- */
+
+/** \name Handle Argument Callbacks
+ * \{ */
+
+static const char arg_handle_print_version_doc[] =
+"\n\tPrint Blender version and exit"
+;
+static int arg_handle_print_version(int UNUSED(argc), const char **UNUSED(argv), void *UNUSED(data))
+{
+	printf(BLEND_VERSION_STRING_FMT);
+#ifdef BUILD_DATE
+	printf("\tbuild date: %s\n", build_date);
+	printf("\tbuild time: %s\n", build_time);
+	printf("\tbuild commit date: %s\n", build_commit_date);
+	printf("\tbuild commit time: %s\n", build_commit_time);
+	printf("\tbuild hash: %s\n", build_hash);
+	printf("\tbuild platform: %s\n", build_platform);
+	printf("\tbuild type: %s\n", build_type);
+	printf("\tbuild c flags: %s\n", build_cflags);
+	printf("\tbuild c++ flags: %s\n", build_cxxflags);
+	printf("\tbuild link flags: %s\n", build_linkflags);
+	printf("\tbuild system: %s\n", build_system);
+#endif
+	exit(0);
+
+	return 0;
+}
+
+static const char arg_handle_print_help_doc[] =
+"\n\tPrint this help text and exit"
+;
+static const char arg_handle_print_help_doc_win32[] =
+"\n\tPrint this help text and exit (windows only)"
+;
+static int arg_handle_print_help(int UNUSED(argc), const char **UNUSED(argv), void *data)
+{
+	bArgs *ba = (bArgs *)data;
+
+	printf(BLEND_VERSION_STRING_FMT);
+	printf("Usage: blender [args ...] [file] [args ...]\n\n");
+
+	printf("Render Options:\n");
+	BLI_argsPrintArgDoc(ba, "--background");
+	BLI_argsPrintArgDoc(ba, "--render-anim");
+	BLI_argsPrintArgDoc(ba, "--scene");
+	BLI_argsPrintArgDoc(ba, "--render-frame");
+	BLI_argsPrintArgDoc(ba, "--frame-start");
+	BLI_argsPrintArgDoc(ba, "--frame-end");
+	BLI_argsPrintArgDoc(ba, "--frame-jump");
+	BLI_argsPrintArgDoc(ba, "--render-output");
+	BLI_argsPrintArgDoc(ba, "--engine");
+	BLI_argsPrintArgDoc(ba, "--threads");
+
+	printf("\n");
+	printf("Format Options:\n");
+	BLI_argsPrintArgDoc(ba, "--render-format");
+	BLI_argsPrintArgDoc(ba, "--use-extension");
+
+	printf("\n");
+	printf("Animation Playback Options:\n");
+	BLI_argsPrintArgDoc(ba, "-a");
+
+	printf("\n");
+	printf("Window Options:\n");
+	BLI_argsPrintArgDoc(ba, "--window-border");
+	BLI_argsPrintArgDoc(ba, "--window-borderless");
+	BLI_argsPrintArgDoc(ba, "--window-geometry");
+	BLI_argsPrintArgDoc(ba, "--start-console");
+	BLI_argsPrintArgDoc(ba, "--no-native-pixels");
+
+
+	printf("\n");
+	printf("Game Engine Specific Options:\n");
+	BLI_argsPrintArgDoc(ba, "-g");
+
+	printf("\n");
+	printf("Python Options:\n");
+	BLI_argsPrintArgDoc(ba, "--enable-autoexec");
+	BLI_argsPrintArgDoc(ba, "--disable-autoexec");
+
+	printf("\n");
+
+	BLI_argsPrintArgDoc(ba, "--python");
+	BLI_argsPrintArgDoc(ba, "--python-text");
+	BLI_argsPrintArgDoc(ba, "--python-expr");
+	BLI_argsPrintArgDoc(ba, "--python-console");
+	BLI_argsPrintArgDoc(ba, "--python-exit-code");
+	BLI_argsPrintArgDoc(ba, "--addons");
+
+
+	printf("\n");
+	printf("Debug Options:\n");
+	BLI_argsPrintArgDoc(ba, "--debug");
+	BLI_argsPrintArgDoc(ba, "--debug-value");
+
+	printf("\n");
+	BLI_argsPrintArgDoc(ba, "--debug-events");
+#ifdef WITH_FFMPEG
+	BLI_argsPrintArgDoc(ba, "--debug-ffmpeg");
+#endif
+	BLI_argsPrintArgDoc(ba, "--debug-handlers");
+#ifdef WITH_LIBMV
+	BLI_argsPrintArgDoc(ba, "--debug-libmv");
+#endif
+#ifdef WITH_CYCLES_LOGGING
+	BLI_argsPrintArgDoc(ba, "--debug-cycles");
+#endif
+	BLI_argsPrintArgDoc(ba, "--debug-memory");
+	BLI_argsPrintArgDoc(ba, "--debug-jobs");
+	BLI_argsPrintArgDoc(ba, "--debug-python");
+	BLI_argsPrintArgDoc(ba, "--debug-depsgraph");
+	BLI_argsPrintArgDoc(ba, "--debug-depsgraph-no-threads");
+
+	BLI_argsPrintArgDoc(ba, "--debug-gpumem");
+	BLI_argsPrintArgDoc(ba, "--debug-wm");
+	BLI_argsPrintArgDoc(ba, "--debug-all");
+
+	printf("\n");
+	BLI_argsPrintArgDoc(ba, "--debug-fpe");
+	BLI_argsPrintArgDoc(ba, "--disable-crash-handler");
+
+	printf("\n");
+	printf("Misc Options:\n");
+	BLI_argsPrintArgDoc(ba, "--factory-startup");
+	printf("\n");
+	BLI_argsPrintArgDoc(ba, "--env-system-datafiles");
+	BLI_argsPrintArgDoc(ba, "--env-system-scripts");
+	BLI_argsPrintArgDoc(ba, "--env-system-python");
+	printf("\n");
+	BLI_argsPrintArgDoc(ba, "-nojoystick");
+	BLI_argsPrintArgDoc(ba, "-noglsl");
+	BLI_argsPrintArgDoc(ba, "-noaudio");
+	BLI_argsPrintArgDoc(ba, "-setaudio");
+
+	printf("\n");
+
+	BLI_argsPrintArgDoc(ba, "--help");
+
+#ifdef WIN32
+	BLI_argsPrintArgDoc(ba, "-R");
+	BLI_argsPrintArgDoc(ba, "-r");
+#endif
+	BLI_argsPrintArgDoc(ba, "--version");
+
+	BLI_argsPrintArgDoc(ba, "--");
+
+	printf("Other Options:\n");
+	BLI_argsPrintOtherDoc(ba);
+
+	printf("\n");
+	printf("Experimental features:\n");
+	BLI_argsPrintArgDoc(ba, "--enable-new-depsgraph");
+
+	printf("Argument Parsing:\n");
+	printf("\tArguments must be separated by white space, eg:\n");
+	printf("\t# blender -ba test.blend\n");
+	printf("\t...will ignore the 'a'\n");
+	printf("\t# blender -b test.blend -f8\n");
+	printf("\t...will ignore '8' because there is no space between the '-f' and the frame value\n\n");
+
+	printf("Argument Order:\n");
+	printf("\tArguments are executed in the order they are given. eg:\n");
+	printf("\t# blender --background test.blend --render-frame 1 --render-output '/tmp'\n");
+	printf("\t...will not render to '/tmp' because '--render-frame 1' renders before the output path is set\n");
+	printf("\t# blender --background --render-output /tmp test.blend --render-frame 1\n");
+	printf("\t...will not render to '/tmp' because loading the blend file overwrites the render output that was set\n");
+	printf("\t# blender --background test.blend --render-output /tmp --render-frame 1\n");
+	printf("\t...works as expected.\n\n");
+
+	printf("Environment Variables:\n");
+	printf("  $BLENDER_USER_CONFIG      Directory for user configuration files.\n");
+	printf("  $BLENDER_USER_SCRIPTS     Directory for user scripts.\n");
+	printf("  $BLENDER_SYSTEM_SCRIPTS   Directory for system wide scripts.\n");
+	printf("  $BLENDER_USER_DATAFILES   Directory for user data files (icons, translations, ..).\n");
+	printf("  $BLENDER_SYSTEM_DATAFILES Directory for system wide data files.\n");
+	printf("  $BLENDER_SYSTEM_PYTHON    Directory for system python libraries.\n");
+#ifdef WIN32
+	printf("  $TEMP                     Store temporary files here.\n");
+#else
+	printf("  $TMP or $TMPDIR           Store temporary files here.\n");
+#endif
+#ifdef WITH_SDL
+	printf("  $SDL_AUDIODRIVER          LibSDL audio driver - alsa, esd, dma.\n");
+#endif
+	printf("  $PYTHONHOME               Path to the python directory, eg. /usr/lib/python.\n\n");
+
+	exit(0);
+
+	return 0;
+}
+
+static const char arg_handle_arguments_end_doc[] =
+"\n\tEnds option processing, following arguments passed unchanged. Access via Python's 'sys.argv'"
+;
+static int arg_handle_arguments_end(int UNUSED(argc), const char **UNUSED(argv), void *UNUSED(data))
+{
+	return -1;
+}
+
+/* only to give help message */
+#ifndef WITH_PYTHON_SECURITY /* default */
+#  define   PY_ENABLE_AUTO ", (default)"
+#  define   PY_DISABLE_AUTO ""
+#else
+#  define   PY_ENABLE_AUTO ""
+#  define   PY_DISABLE_AUTO ", (compiled as non-standard default)"
+#endif
+
+static const char arg_handle_python_set_doc_enable[] =
+"\n\tEnable automatic Python script execution" PY_ENABLE_AUTO
+;
+static const char arg_handle_python_set_doc_disable[] =
+"\n\tDisable automatic Python script execution (pydrivers & startup scripts)" PY_DISABLE_AUTO
+;
+#undef PY_ENABLE_AUTO
+#undef PY_DISABLE_AUTO
+
+static int arg_handle_python_set(int UNUSED(argc), const char **UNUSED(argv), void *data)
+{
+	if ((bool)data) {
+		G.f |= G_SCRIPT_AUTOEXEC;
+	}
+	else {
+		G.f &= ~G_SCRIPT_AUTOEXEC;
+	}
+	G.f |= G_SCRIPT_OVERRIDE_PREF;
+	return 0;
+}
+
+static const char arg_handle_crash_handler_disable_doc[] =
+"\n\tDisable the crash handler"
+;
+static int arg_handle_crash_handler_disable(int UNUSED(argc), const char **UNUSED(argv), void *UNUSED(data))
+{
+	app_state.signal.use_crash_handler = false;
+	return 0;
+}
+
+static const char arg_handle_abort_handler_disable_doc[] =
+"\n\tDisable the abort handler"
+;
+static int arg_handle_abort_handler_disable(int UNUSED(argc), const char **UNUSED(argv), void *UNUSED(data))
+{
+	app_state.signal.use_abort_handler = false;
+	return 0;
+}
+
+static const char arg_handle_background_mode_set_doc[] =
+"\n\tRun in background (often used for UI-less rendering)"
+;
+static int arg_handle_background_mode_set(int UNUSED(argc), const char **UNUSED(argv), void *UNUSED(data))
+{
+	G.background = 1;
+	return 0;
+}
+
+static const char arg_handle_debug_mode_set_doc[] =
+"\n\tTurn debugging on\n"
+"\n\t* Enables memory error detection"
+"\n\t* Disables mouse grab (to interact with a debugger in some cases)"
+"\n\t* Keeps Python's 'sys.stdin' rather than setting it to None"
+;
+static int arg_handle_debug_mode_set(int UNUSED(argc), const char **UNUSED(argv), void *data)
+{
+	G.debug |= G_DEBUG;  /* std output printf's */
+	printf(BLEND_VERSION_STRING_FMT);
+	MEM_set_memory_debug();
+#ifndef NDEBUG
+	BLI_mempool_set_memory_debug();
+#endif
+
+#ifdef WITH_BUILDINFO
+	printf("Build: %s %s %s %s\n", build_date, build_time, build_platform, build_type);
+#endif
+
+	BLI_argsPrint(data);
+	return 0;
+}
+
+#ifdef WITH_FFMPEG
+static const char arg_handle_debug_mode_generic_set_doc_ffmpeg[] =
+"\n\tEnable debug messages from FFmpeg library";
+#endif
+#ifdef WITH_FREESTYLE
+static const char arg_handle_debug_mode_generic_set_doc_freestyle[] =
+"\n\tEnable debug messages for FreeStyle";
+#endif
+static const char arg_handle_debug_mode_generic_set_doc_python[] =
+"\n\tEnable debug messages for Python";
+static const char arg_handle_debug_mode_generic_set_doc_events[] =
+"\n\tEnable debug messages for the event system";
+static const char arg_handle_debug_mode_generic_set_doc_handlers[] =
+"\n\tEnable debug messages for event handling";
+static const char arg_handle_debug_mode_generic_set_doc_wm[] =
+"\n\tEnable debug messages for the window manager, also prints every operator call";
+static const char arg_handle_debug_mode_generic_set_doc_all[] =
+"\n\tEnable all debug messages (excludes libmv)";
+static const char arg_handle_debug_mode_generic_set_doc_jobs[] =
+"\n\tEnable time profiling for background jobs.";
+static const char arg_handle_debug_mode_generic_set_doc_gpu[] =
+"\n\tEnable gpu debug context and information for OpenGL 4.3+.";
+static const char arg_handle_debug_mode_generic_set_doc_depsgraph[] =
+"\n\tEnable debug messages from dependency graph";
+static const char arg_handle_debug_mode_generic_set_doc_depsgraph_no_threads[] =
+"\n\tSwitch dependency graph to a single threaded evaluation";
+static const char arg_handle_debug_mode_generic_set_doc_gpumem[] =
+"\n\tEnable GPU memory stats in status bar";
+
+static int arg_handle_debug_mode_generic_set(int UNUSED(argc), const char **UNUSED(argv), void *data)
+{
+	G.debug |= GET_INT_FROM_POINTER(data);
+	return 0;
+}
+
+#ifdef WITH_LIBMV
+static const char arg_handle_debug_mode_libmv_doc[] =
+"\n\tEnable debug messages from libmv library"
+;
+static int arg_handle_debug_mode_libmv(int UNUSED(argc), const char **UNUSED(argv), void *UNUSED(data))
+{
+	libmv_startDebugLogging();
+
+	return 0;
+}
+#endif
+
+#ifdef WITH_CYCLES_LOGGING
+static const char arg_handle_debug_mode_cycles_doc[] =
+"\n\tEnable debug messages from Cycles"
+;
+static int arg_handle_debug_mode_cycles(int UNUSED(argc), const char **UNUSED(argv), void *UNUSED(data))
+{
+	CCL_start_debug_logging();
+	return 0;
+}
+#endif
+
+static const char arg_handle_debug_mode_memory_set_doc[] =
+"\n\tEnable fully guarded memory allocation and debugging"
+;
+static int arg_handle_debug_mode_memory_set(int UNUSED(argc), const char **UNUSED(argv), void *UNUSED(data))
+{
+	MEM_set_memory_debug();
+	return 0;
+}
+
+static const char arg_handle_debug_value_set_doc[] =
+"<value>\n\tSet debug value of <value> on startup\n"
+;
+static int arg_handle_debug_value_set(int argc, const char **argv, void *UNUSED(data))
+{
+	const char *arg_id = "--debug-value";
+	if (argc > 1) {
+		const char *err_msg = NULL;
+		int value;
+		if (!parse_int(argv[1], &value, &err_msg)) {
+			printf("\nError: %s '%s %s'.\n", err_msg, arg_id, argv[1]);
+			return 1;
+		}
+
+		G.debug_value = value;
+
+		return 1;
+	}
+	else {
+		printf("\nError: you must specify debug value to set.\n");
+		return 0;
+	}
+}
+
+static const char arg_handle_debug_fpe_set_doc[] =
+"\n\tEnable floating point exceptions"
+;
+static int arg_handle_debug_fpe_set(int UNUSED(argc), const char **UNUSED(argv), void *UNUSED(data))
+{
+	main_signal_setup_fpe();
+	return 0;
+}
+
+static const char arg_handle_factory_startup_set_doc[] =
+"\n\tSkip reading the " STRINGIFY(BLENDER_STARTUP_FILE) " in the users home directory"
+;
+static int arg_handle_factory_startup_set(int UNUSED(argc), const char **UNUSED(argv), void *UNUSED(data))
+{
+	G.factory_startup = 1;
+	return 0;
+}
+
+static const char arg_handle_env_system_set_doc_datafiles[] =
+"\n\tSet the "STRINGIFY_ARG (BLENDER_SYSTEM_DATAFILES)" environment variable";
+static const char arg_handle_env_system_set_doc_scripts[] =
+"\n\tSet the "STRINGIFY_ARG (BLENDER_SYSTEM_SCRIPTS)" environment variable";
+static const char arg_handle_env_system_set_doc_python[] =
+"\n\tSet the "STRINGIFY_ARG (BLENDER_SYSTEM_PYTHON)" environment variable";
+
+static int arg_handle_env_system_set(int argc, const char **argv, void *UNUSED(data))
+{
+	/* "--env-system-scripts" --> "BLENDER_SYSTEM_SCRIPTS" */
+
+	char env[64] = "BLENDER";
+	char *ch_dst = env + 7; /* skip BLENDER */
+	const char *ch_src = argv[0] + 5; /* skip --env */
+
+	if (argc < 2) {
+		printf("%s requires one argument\n", argv[0]);
+		exit(1);
+	}
+
+	for (; *ch_src; ch_src++, ch_dst++) {
+		*ch_dst = (*ch_src == '-') ? '_' : (*ch_src) - 32; /* toupper() */
+	}
+
+	*ch_dst = '\0';
+	BLI_setenv(env, argv[1]);
+	return 1;
+}
+
+static const char arg_handle_playback_mode_doc[] =
+"<options> <file(s)>\n"
+"\tPlayback <file(s)>, only operates this way when not running in background.\n"
+"\t\t-p <sx> <sy>\tOpen with lower left corner at <sx>, <sy>\n"
+"\t\t-m\t\tRead from disk (Don't buffer)\n"
+"\t\t-f <fps> <fps-base>\t\tSpecify FPS to start with\n"
+"\t\t-j <frame>\tSet frame step to <frame>\n"
+"\t\t-s <frame>\tPlay from <frame>\n"
+"\t\t-e <frame>\tPlay until <frame>"
+;
+static int arg_handle_playback_mode(int argc, const char **argv, void *UNUSED(data))
+{
+	/* not if -b was given first */
+	if (G.background == 0) {
+#ifdef WITH_FFMPEG
+		/* Setup FFmpeg with current debug flags. */
+		IMB_ffmpeg_init();
+#endif
+
+		WM_main_playanim(argc, argv); /* not the same argc and argv as before */
+		exit(0); /* 2.4x didn't do this */
+	}
+
+	return -2;
+}
+
+static const char arg_handle_window_geometry_doc[] =
+"<sx> <sy> <w> <h>\n"
+"\tOpen with lower left corner at <sx>, <sy> and width and height as <w>, <h>"
+;
+static int arg_handle_window_geometry(int argc, const char **argv, void *UNUSED(data))
+{
+	const char *arg_id = "-p / --window-geometry";
+	int params[4], i;
+
+	if (argc < 5) {
+		fprintf(stderr, "Error: requires four arguments '%s'\n", arg_id);
+		exit(1);
+	}
+
+	for (i = 0; i < 4; i++) {
+		const char *err_msg = NULL;
+		if (!parse_int(argv[i + 1], &params[i], &err_msg)) {
+			printf("\nError: %s '%s %s'.\n", err_msg, arg_id, argv[1]);
+			exit(1);
+		}
+	}
+
+	WM_init_state_size_set(UNPACK4(params));
+
+	return 4;
+}
+
+static const char arg_handle_native_pixels_set_doc[] =
+"\n\tDo not use native pixel size, for high resolution displays (MacBook 'Retina')"
+;
+static int arg_handle_native_pixels_set(int UNUSED(argc), const char **UNUSED(argv), void *UNUSED(data))
+{
+	WM_init_native_pixels(false);
+	return 0;
+}
+
+static const char arg_handle_with_borders_doc[] =
+"\n\tForce opening without borders"
+;
+static int arg_handle_with_borders(int UNUSED(argc), const char **UNUSED(argv), void *UNUSED(data))
+{
+	WM_init_state_normal_set();
+	return 0;
+}
+
+static const char arg_handle_without_borders_doc[] =
+"\n\tForce opening without borders"
+;
+static int arg_handle_without_borders(int UNUSED(argc), const char **UNUSED(argv), void *UNUSED(data))
+{
+	WM_init_state_fullscreen_set();
+	return 0;
+}
+
+extern bool wm_start_with_console; /* wm_init_exit.c */
+
+static const char arg_handle_start_with_console_doc[] =
+"\n\tStart with the console window open (ignored if -b is set), (Windows only)"
+;
+static int arg_handle_start_with_console(int UNUSED(argc), const char **UNUSED(argv), void *UNUSED(data))
+{
+	wm_start_with_console = true;
+	return 0;
+}
+
+static const char arg_handle_register_extension_doc[] =
+"\n\tRegister .blend extension, then exit (Windows only)"
+;
+static const char arg_handle_register_extension_doc_silent[] =
+"\n\tSilently register .blend extension, then exit (Windows only)"
+;
+static int arg_handle_register_extension(int UNUSED(argc), const char **UNUSED(argv), void *data)
+{
+#ifdef WIN32
+	if (data)
+		G.background = 1;
+	RegisterBlendExtension();
+#else
+	(void)data; /* unused */
+#endif
+	return 0;
+}
+
+static const char arg_handle_joystick_disable_doc[] =
+"\n\tDisable joystick support"
+;
+static int arg_handle_joystick_disable(int UNUSED(argc), const char **UNUSED(argv), void *data)
+{
+#ifndef WITH_GAMEENGINE
+	(void)data;
+#else
+	SYS_SystemHandle *syshandle = data;
+
+	/**
+	 * don't initialize joysticks if user doesn't want to use joysticks
+	 * failed joystick initialization delays over 5 seconds, before game engine start
+	 */
+	SYS_WriteCommandLineInt(*syshandle, "nojoystick", 1);
+	if (G.debug & G_DEBUG) printf("disabling nojoystick\n");
+#endif
+
+	return 0;
+}
+
+static const char arg_handle_glsl_disable_doc[] =
+"\n\tDisable GLSL shading"
+;
+static int arg_handle_glsl_disable(int UNUSED(argc), const char **UNUSED(argv), void *UNUSED(data))
+{
+	GPU_extensions_disable();
+	return 0;
+}
+
+static const char arg_handle_audio_disable_doc[] =
+"\n\tForce sound system to None"
+;
+static int arg_handle_audio_disable(int UNUSED(argc), const char **UNUSED(argv), void *UNUSED(data))
+{
+	BKE_sound_force_device("Null");
+	return 0;
+}
+
+static const char arg_handle_audio_set_doc[] =
+"\n\tForce sound system to a specific device\n\tNULL SDL OPENAL JACK"
+;
+static int arg_handle_audio_set(int argc, const char **argv, void *UNUSED(data))
+{
+	if (argc < 1) {
+		fprintf(stderr, "-setaudio require one argument\n");
+		exit(1);
+	}
+
+	BKE_sound_force_device(argv[1]);
+	return 1;
+}
+
+static const char arg_handle_output_set_doc[] =
+"<path>\n"
+"\tSet the render path and file name.\n"
+"\tUse '//' at the start of the path to render relative to the blend file.\n"
+"\n"
+"\tThe '#' characters are replaced by the frame number, and used to define zero padding.\n"
+"\t* 'ani_##_test.png' becomes 'ani_01_test.png'\n"
+"\t* 'test-######.png' becomes 'test-000001.png'\n"
+"\n"
+"\tWhen the filename does not contain '#', The suffix '####' is added to the filename.\n"
+"\n"
+"\tThe frame number will be added at the end of the filename, eg:\n"
+"\t# blender -b foobar.blend -o //render_ -F PNG -x 1 -a\n"
+"\t'//render_' becomes '//render_####', writing frames as '//render_0001.png'"
+;
+static int arg_handle_output_set(int argc, const char **argv, void *data)
+{
+	bContext *C = data;
+	if (argc > 1) {
+		Scene *scene = CTX_data_scene(C);
+		if (scene) {
+			BLI_strncpy(scene->r.pic, argv[1], sizeof(scene->r.pic));
+		}
+		else {
+			printf("\nError: no blend loaded. cannot use '-o / --render-output'.\n");
+		}
+		return 1;
+	}
+	else {
+		printf("\nError: you must specify a path after '-o  / --render-output'.\n");
+		return 0;
+	}
+}
+
+static const char arg_handle_engine_set_doc[] =
+"<engine>\n"
+"\tSpecify the render engine\n\tuse -E help to list available engines"
+;
+static int arg_handle_engine_set(int argc, const char **argv, void *data)
+{
+	bContext *C = data;
+	if (argc >= 2) {
+		if (STREQ(argv[1], "help")) {
+			RenderEngineType *type = NULL;
+			printf("Blender Engine Listing:\n");
+			for (type = R_engines.first; type; type = type->next) {
+				printf("\t%s\n", type->idname);
+			}
+			exit(0);
+		}
+		else {
+			Scene *scene = CTX_data_scene(C);
+			if (scene) {
+				RenderData *rd = &scene->r;
+
+				if (BLI_findstring(&R_engines, argv[1], offsetof(RenderEngineType, idname))) {
+					BLI_strncpy_utf8(rd->engine, argv[1], sizeof(rd->engine));
+				}
+				else {
+					printf("\nError: engine not found '%s'\n", argv[1]);
+					exit(1);
+				}
+			}
+			else {
+				printf("\nError: no blend loaded. order the arguments so '-E  / --engine ' is after a blend is loaded.\n");
+			}
+		}
+
+		return 1;
+	}
+	else {
+		printf("\nEngine not specified, give 'help' for a list of available engines.\n");
+		return 0;
+	}
+}
+
+static const char arg_handle_image_type_set_doc[] =
+"<format>\n"
+"\tSet the render format, Valid options are...\n"
+"\t\tTGA IRIS JPEG MOVIE IRIZ RAWTGA\n"
+"\t\tAVIRAW AVIJPEG PNG BMP FRAMESERVER\n"
+"\t(formats that can be compiled into blender, not available on all systems)\n"
+"\t\tHDR TIFF EXR MULTILAYER MPEG AVICODEC QUICKTIME CINEON DPX DDS"
+;
+static int arg_handle_image_type_set(int argc, const char **argv, void *data)
+{
+	bContext *C = data;
+	if (argc > 1) {
+		const char *imtype = argv[1];
+		Scene *scene = CTX_data_scene(C);
+		if (scene) {
+			const char imtype_new = BKE_imtype_from_arg(imtype);
+
+			if (imtype_new == R_IMF_IMTYPE_INVALID) {
+				printf("\nError: Format from '-F / --render-format' not known or not compiled in this release.\n");
+			}
+			else {
+				scene->r.im_format.imtype = imtype_new;
+			}
+		}
+		else {
+			printf("\nError: no blend loaded. order the arguments so '-F  / --render-format' is after the blend is loaded.\n");
+		}
+		return 1;
+	}
+	else {
+		printf("\nError: you must specify a format after '-F  / --render-foramt'.\n");
+		return 0;
+	}
+}
+
+static const char arg_handle_threads_set_doc[] =
+"<threads>\n"
+"\tUse amount of <threads> for rendering and other operations\n"
+"\t[1-" STRINGIFY(BLENDER_MAX_THREADS) "], 0 for systems processor count."
+;
+static int arg_handle_threads_set(int argc, const char **argv, void *UNUSED(data))
+{
+	const char *arg_id = "-t / --threads";
+	const int min = 0, max = BLENDER_MAX_THREADS;
+	if (argc > 1) {
+		const char *err_msg = NULL;
+		int threads;
+		if (!parse_int_strict_range(argv[1], min, max, &threads, &err_msg)) {
+			printf("\nError: %s '%s %s', expected number in [%d..%d].\n", err_msg, arg_id, argv[1], min, max);
+			return 1;
+		}
+
+		BLI_system_num_threads_override_set(threads);
+		return 1;
+	}
+	else {
+		printf("\nError: you must specify a number of threads in [%d..%d] '%s'.\n", min, max, arg_id);
+		return 0;
+	}
+}
+
+static const char arg_handle_depsgraph_use_new_doc[] =
+"\n\tUse new dependency graph"
+;
+static int arg_handle_depsgraph_use_new(int UNUSED(argc), const char **UNUSED(argv), void *UNUSED(data))
+{
+	printf("Using new dependency graph.\n");
+	DEG_depsgraph_switch_to_new();
+	return 0;
+}
+
+static const char arg_handle_verbosity_set_doc[] =
+"<verbose>\n\tSet logging verbosity level."
+;
+static int arg_handle_verbosity_set(int argc, const char **argv, void *UNUSED(data))
+{
+	const char *arg_id = "--verbose";
+	if (argc > 1) {
+		const char *err_msg = NULL;
+		int level;
+		if (!parse_int(argv[1], &level, &err_msg)) {
+			printf("\nError: %s '%s %s'.\n", err_msg, arg_id, argv[1]);
+		}
+
+#ifdef WITH_LIBMV
+		libmv_setLoggingVerbosity(level);
+#elif defined(WITH_CYCLES_LOGGING)
+		CCL_logging_verbosity_set(level);
+#else
+		(void)level;
+#endif
+
+		return 1;
+	}
+	else {
+		printf("\nError: you must specify a verbosity level.\n");
+		return 0;
+	}
+}
+
+static const char arg_handle_extension_set_doc[] =
+"<bool>\n"
+"\tSet option to add the file extension to the end of the file"
+;
+static int arg_handle_extension_set(int argc, const char **argv, void *data)
+{
+	bContext *C = data;
+	if (argc > 1) {
+		Scene *scene = CTX_data_scene(C);
+		if (scene) {
+			if (argv[1][0] == '0') {
+				scene->r.scemode &= ~R_EXTENSION;
+			}
+			else if (argv[1][0] == '1') {
+				scene->r.scemode |= R_EXTENSION;
+			}
+			else {
+				printf("\nError: Use '-x 1 / -x 0' To set the extension option or '--use-extension'\n");
+			}
+		}
+		else {
+			printf("\nError: no blend loaded. order the arguments so '-o ' is after '-x '.\n");
+		}
+		return 1;
+	}
+	else {
+		printf("\nError: you must specify a path after '- '.\n");
+		return 0;
+	}
+}
+
+static const char arg_handle_ge_parameters_set_doc[] =
+"Game Engine specific options\n"
+"\t-g fixedtime\t\tRun on 50 hertz without dropping frames\n"
+"\t-g vertexarrays\t\tUse Vertex Arrays for rendering (usually faster)\n"
+"\t-g nomipmap\t\tNo Texture Mipmapping\n"
+"\t-g linearmipmap\t\tLinear Texture Mipmapping instead of Nearest (default)"
+;
+static int arg_handle_ge_parameters_set(int argc, const char **argv, void *data)
+{
+	int a = 0;
+#ifdef WITH_GAMEENGINE
+	SYS_SystemHandle syshandle = *(SYS_SystemHandle *)data;
+#else
+	(void)data;
+#endif
+
+	/**
+	 * gameengine parameters are automatically put into system
+	 * -g [paramname = value]
+	 * -g [boolparamname]
+	 * example:
+	 * -g novertexarrays
+	 * -g maxvertexarraysize = 512
+	 */
+
+	if (argc >= 1) {
+		const char *paramname = argv[a];
+		/* check for single value versus assignment */
+		if (a + 1 < argc && (*(argv[a + 1]) == '=')) {
+			a++;
+			if (a + 1 < argc) {
+				a++;
+				/* assignment */
+#ifdef WITH_GAMEENGINE
+				SYS_WriteCommandLineString(syshandle, paramname, argv[a]);
+#endif
+			}
+			else {
+				printf("error: argument assignment (%s) without value.\n", paramname);
+				return 0;
+			}
+			/* name arg eaten */
+
+		}
+		else {
+#ifdef WITH_GAMEENGINE
+			SYS_WriteCommandLineInt(syshandle, argv[a], 1);
+#endif
+			/* doMipMap */
+			if (STREQ(argv[a], "nomipmap")) {
+				GPU_set_mipmap(0); //doMipMap = 0;
+			}
+			/* linearMipMap */
+			if (STREQ(argv[a], "linearmipmap")) {
+				GPU_set_mipmap(1);
+				GPU_set_linear_mipmap(1); //linearMipMap = 1;
+			}
+
+
+		} /* if (*(argv[a + 1]) == '=') */
+	}
+
+	return a;
+}
+
+static const char arg_handle_render_frame_doc[] =
+"<frame>\n\tRender frame <frame> and save it.\n\t+<frame> start frame relative, -<frame> end frame relative."
+;
+static int arg_handle_render_frame(int argc, const char **argv, void *data)
+{
+	const char *arg_id = "-f / --render-frame";
+	bContext *C = data;
+	Scene *scene = CTX_data_scene(C);
+	if (scene) {
+		Main *bmain = CTX_data_main(C);
+
+		if (argc > 1) {
+			const char *err_msg = NULL;
+			Render *re;
+			int frame;
+			ReportList reports;
+
+			if (!parse_int_relative_clamp(
+			        argv[1], scene->r.sfra, scene->r.efra, MINAFRAME, MAXFRAME,
+			        &frame, &err_msg))
+			{
+				printf("\nError: %s '%s %s'.\n", err_msg, arg_id, argv[1]);
+				return 1;
+			}
+
+			re = RE_NewRender(scene->id.name);
+			BLI_begin_threaded_malloc();
+			BKE_reports_init(&reports, RPT_PRINT);
+
+			RE_SetReports(re, &reports);
+			RE_BlenderAnim(re, bmain, scene, NULL, scene->lay, frame, frame, scene->r.frame_step);
+			RE_SetReports(re, NULL);
+			BLI_end_threaded_malloc();
+			return 1;
+		}
+		else {
+			printf("\nError: frame number must follow '%s'.\n", arg_id);
+			return 0;
+		}
+	}
+	else {
+		printf("\nError: no blend loaded. cannot use '%s'.\n", arg_id);
+		return 0;
+	}
+}
+
+static const char arg_handle_render_animation_doc[] =
+"\n\tRender frames from start to end (inclusive)"
+;
+static int arg_handle_render_animation(int UNUSED(argc), const char **UNUSED(argv), void *data)
+{
+	bContext *C = data;
+	Scene *scene = CTX_data_scene(C);
+	if (scene) {
+		Main *bmain = CTX_data_main(C);
+		Render *re = RE_NewRender(scene->id.name);
+		ReportList reports;
+		BLI_begin_threaded_malloc();
+		BKE_reports_init(&reports, RPT_PRINT);
+		RE_SetReports(re, &reports);
+		RE_BlenderAnim(re, bmain, scene, NULL, scene->lay, scene->r.sfra, scene->r.efra, scene->r.frame_step);
+		RE_SetReports(re, NULL);
+		BLI_end_threaded_malloc();
+	}
+	else {
+		printf("\nError: no blend loaded. cannot use '-a'.\n");
+	}
+	return 0;
+}
+
+static const char arg_handle_scene_set_doc[] =
+"<name>\n"
+"\tSet the active scene <name> for rendering"
+;
+static int arg_handle_scene_set(int argc, const char **argv, void *data)
+{
+	if (argc > 1) {
+		bContext *C = data;
+		Scene *scene = BKE_scene_set_name(CTX_data_main(C), argv[1]);
+		if (scene) {
+			CTX_data_scene_set(C, scene);
+		}
+		return 1;
+	}
+	else {
+		printf("\nError: Scene name must follow '-S / --scene'.\n");
+		return 0;
+	}
+}
+
+static const char arg_handle_frame_start_set_doc[] =
+"<frame>\n\tSet start to frame <frame>, supports +/- for relative frames too."
+;
+static int arg_handle_frame_start_set(int argc, const char **argv, void *data)
+{
+	const char *arg_id = "-s / --frame-start";
+	bContext *C = data;
+	Scene *scene = CTX_data_scene(C);
+	if (scene) {
+		if (argc > 1) {
+			const char *err_msg = NULL;
+			if (!parse_int_relative_clamp(
+			        argv[1], scene->r.sfra, scene->r.sfra - 1, MINAFRAME, MAXFRAME,
+			        &scene->r.sfra, &err_msg))
+			{
+				printf("\nError: %s '%s %s'.\n", err_msg, arg_id, argv[1]);
+			}
+			return 1;
+		}
+		else {
+			printf("\nError: frame number must follow '%s'.\n", arg_id);
+			return 0;
+		}
+	}
+	else {
+		printf("\nError: no blend loaded. cannot use '%s'.\n", arg_id);
+		return 0;
+	}
+}
+
+static const char arg_handle_frame_end_set_doc[] =
+"<frame>\n"
+"\tSet end to frame <frame>, supports +/- for relative frames too."
+;
+static int arg_handle_frame_end_set(int argc, const char **argv, void *data)
+{
+	const char *arg_id = "-e / --frame-end";
+	bContext *C = data;
+	Scene *scene = CTX_data_scene(C);
+	if (scene) {
+		if (argc > 1) {
+			const char *err_msg = NULL;
+			if (!parse_int_relative_clamp(
+			        argv[1], scene->r.efra, scene->r.efra - 1, MINAFRAME, MAXFRAME,
+			        &scene->r.efra, &err_msg))
+			{
+				printf("\nError: %s '%s %s'.\n", err_msg, arg_id, argv[1]);
+			}
+			return 1;
+		}
+		else {
+			printf("\nError: frame number must follow '%s'.\n", arg_id);
+			return 0;
+		}
+	}
+	else {
+		printf("\nError: no blend loaded. cannot use '%s'.\n", arg_id);
+		return 0;
+	}
+}
+
+static const char arg_handle_frame_skip_set_doc[] =
+"<frames>\n\tSet number of frames to step forward after each rendered frame"
+;
+static int arg_handle_frame_skip_set(int argc, const char **argv, void *data)
+{
+	const char *arg_id = "-j / --frame-jump";
+	bContext *C = data;
+	Scene *scene = CTX_data_scene(C);
+	if (scene) {
+		if (argc > 1) {
+			const char *err_msg = NULL;
+			if (!parse_int_clamp(argv[1], 1, MAXFRAME, &scene->r.frame_step, &err_msg)) {
+				printf("\nError: %s '%s %s'.\n", err_msg, arg_id, argv[1]);
+			}
+			return 1;
+		}
+		else {
+			printf("\nError: number of frames to step must follow '%s'.\n", arg_id);
+			return 0;
+		}
+	}
+	else {
+		printf("\nError: no blend loaded. cannot use '%s'.\n", arg_id);
+		return 0;
+	}
+}
+
+static const char arg_handle_python_file_run_doc[] =
+"<filename>\n"
+"\tRun the given Python script file"
+;
+static int arg_handle_python_file_run(int argc, const char **argv, void *data)
+{
+#ifdef WITH_PYTHON
+	bContext *C = data;
+
+	/* workaround for scripts not getting a bpy.context.scene, causes internal errors elsewhere */
+	if (argc > 1) {
+		/* Make the path absolute because its needed for relative linked blends to be found */
+		char filename[FILE_MAX];
+		BLI_strncpy(filename, argv[1], sizeof(filename));
+		BLI_path_cwd(filename, sizeof(filename));
+
+		bool ok;
+		BPY_CTX_SETUP(ok = BPY_execute_filepath(C, filename, NULL));
+		if (!ok && app_state.exit_code_on_error.python) {
+			printf("\nError: script failed, file: '%s', exiting.\n", argv[1]);
+			exit(app_state.exit_code_on_error.python);
+		}
+		return 1;
+	}
+	else {
+		printf("\nError: you must specify a filepath after '%s'.\n", argv[0]);
+		return 0;
+	}
+#else
+	UNUSED_VARS(argc, argv, data);
+	printf("This blender was built without python support\n");
+	return 0;
+#endif /* WITH_PYTHON */
+}
+
+static const char arg_handle_python_text_run_doc[] =
+"<name>\n"
+"\tRun the given Python script text block"
+;
+static int arg_handle_python_text_run(int argc, const char **argv, void *data)
+{
+#ifdef WITH_PYTHON
+	bContext *C = data;
+
+	/* workaround for scripts not getting a bpy.context.scene, causes internal errors elsewhere */
+	if (argc > 1) {
+		/* Make the path absolute because its needed for relative linked blends to be found */
+		struct Text *text = (struct Text *)BKE_libblock_find_name(ID_TXT, argv[1]);
+		bool ok;
+
+		if (text) {
+			BPY_CTX_SETUP(ok = BPY_execute_text(C, text, NULL, false));
+		}
+		else {
+			printf("\nError: text block not found %s.\n", argv[1]);
+			ok = false;
+		}
+
+		if (!ok && app_state.exit_code_on_error.python) {
+			printf("\nError: script failed, text: '%s', exiting.\n", argv[1]);
+			exit(app_state.exit_code_on_error.python);
+		}
+
+		return 1;
+	}
+	else {
+		printf("\nError: you must specify a text block after '%s'.\n", argv[0]);
+		return 0;
+	}
+#else
+	UNUSED_VARS(argc, argv, data);
+	printf("This blender was built without python support\n");
+	return 0;
+#endif /* WITH_PYTHON */
+}
+
+static const char arg_handle_python_expr_run_doc[] =
+"<expression>\n"
+"\tRun the given expression as a Python script"
+;
+static int arg_handle_python_expr_run(int argc, const char **argv, void *data)
+{
+#ifdef WITH_PYTHON
+	bContext *C = data;
+
+	/* workaround for scripts not getting a bpy.context.scene, causes internal errors elsewhere */
+	if (argc > 1) {
+		bool ok;
+		BPY_CTX_SETUP(ok = BPY_execute_string_ex(C, argv[1], false));
+		if (!ok && app_state.exit_code_on_error.python) {
+			printf("\nError: script failed, expr: '%s', exiting.\n", argv[1]);
+			exit(app_state.exit_code_on_error.python);
+		}
+		return 1;
+	}
+	else {
+		printf("\nError: you must specify a Python expression after '%s'.\n", argv[0]);
+		return 0;
+	}
+#else
+	UNUSED_VARS(argc, argv, data);
+	printf("This blender was built without python support\n");
+	return 0;
+#endif /* WITH_PYTHON */
+}
+
+static const char arg_handle_python_console_run_doc[] =
+"\n\tRun blender with an interactive console"
+;
+static int arg_handle_python_console_run(int UNUSED(argc), const char **argv, void *data)
+{
+#ifdef WITH_PYTHON
+	bContext *C = data;
+
+	BPY_CTX_SETUP(BPY_execute_string(C, "__import__('code').interact()"));
+
+	return 0;
+#else
+	UNUSED_VARS(argv, data);
+	printf("This blender was built without python support\n");
+	return 0;
+#endif /* WITH_PYTHON */
+}
+
+static const char arg_handle_python_exit_code_set_doc[] =
+"\n\tSet the exit-code in [0..255] to exit if a Python exception is raised\n"
+"\t(only for scripts executed from the command line), zero disables."
+;
+static int arg_handle_python_exit_code_set(int argc, const char **argv, void *UNUSED(data))
+{
+	const char *arg_id = "--python-exit-code";
+	if (argc > 1) {
+		const char *err_msg = NULL;
+		const int min = 0, max = 255;
+		int exit_code;
+		if (!parse_int_strict_range(argv[1], min, max, &exit_code, &err_msg)) {
+			printf("\nError: %s '%s %s', expected number in [%d..%d].\n", err_msg, arg_id, argv[1], min, max);
+			return 1;
+		}
+
+		app_state.exit_code_on_error.python = (unsigned char)exit_code;
+		return 1;
+	}
+	else {
+		printf("\nError: you must specify an exit code number '%s'.\n", arg_id);
+		return 0;
+	}
+}
+
+static const char arg_handle_addons_set_doc[] =
+"\n\tComma separated list of addons (no spaces)"
+;
+static int arg_handle_addons_set(int argc, const char **argv, void *data)
+{
+	/* workaround for scripts not getting a bpy.context.scene, causes internal errors elsewhere */
+	if (argc > 1) {
+#ifdef WITH_PYTHON
+		const char script_str[] =
+		        "from addon_utils import check, enable\n"
+		        "for m in '%s'.split(','):\n"
+		        "    if check(m)[1] is False:\n"
+		        "        enable(m, persistent=True)";
+		const int slen = strlen(argv[1]) + (sizeof(script_str) - 2);
+		char *str = malloc(slen);
+		bContext *C = data;
+		BLI_snprintf(str, slen, script_str, argv[1]);
+
+		BLI_assert(strlen(str) + 1 == slen);
+		BPY_CTX_SETUP(BPY_execute_string_ex(C, str, false));
+		free(str);
+#else
+		UNUSED_VARS(argv, data);
+#endif /* WITH_PYTHON */
+		return 1;
+	}
+	else {
+		printf("\nError: you must specify a comma separated list after '--addons'.\n");
+		return 0;
+	}
+}
+
+static int arg_handle_load_file(int UNUSED(argc), const char **argv, void *data)
+{
+	bContext *C = data;
+	ReportList reports;
+	bool success;
+
+	/* Make the path absolute because its needed for relative linked blends to be found */
+	char filename[FILE_MAX];
+
+	/* note, we could skip these, but so far we always tried to load these files */
+	if (argv[0][0] == '-') {
+		fprintf(stderr, "unknown argument, loading as file: %s\n", argv[0]);
+	}
+
+	BLI_strncpy(filename, argv[0], sizeof(filename));
+	BLI_path_cwd(filename, sizeof(filename));
+
+	/* load the file */
+	BKE_reports_init(&reports, RPT_PRINT);
+	WM_file_autoexec_init(filename);
+	success = WM_file_read(C, filename, &reports);
+	BKE_reports_clear(&reports);
+
+	if (success) {
+		if (G.background) {
+			/* ensuer we use 'C->data.scene' for background render */
+			CTX_wm_window_set(C, NULL);
+		}
+	}
+	else {
+		/* failed to load file, stop processing arguments if running in background mode */
+		if (G.background) {
+			/* Set is_break if running in the background mode so
+			 * blender will return non-zero exit code which then
+			 * could be used in automated script to control how
+			 * good or bad things are.
+			 */
+			G.is_break = true;
+			return -1;
+		}
+
+		/* Just pretend a file was loaded, so the user can press Save and it'll save at the filename from the CLI. */
+		BLI_strncpy(G.main->name, filename, FILE_MAX);
+		G.relbase_valid = true;
+		G.save_over = true;
+		printf("... opened default scene instead; saving will write to %s\n", filename);
+	}
+
+	G.file_loaded = 1;
+
+	return 0;
+}
+
+
+void main_args_setup(bContext *C, bArgs *ba, SYS_SystemHandle *syshandle)
+{
+
+#define CB(a) a##_doc, a
+#define CB_EX(a, b) a##_doc_##b, a
+
+	//BLI_argsAdd(ba, pass, short_arg, long_arg, doc, cb, C);
+
+	/* end argument processing after -- */
+	BLI_argsAdd(ba, -1, "--", NULL, arg_handle_arguments_end_doc, arg_handle_arguments_end, NULL);
+
+	/* first pass: background mode, disable python and commands that exit after usage */
+	BLI_argsAdd(ba, 1, "-h", "--help", CB(arg_handle_print_help), ba);
+	/* Windows only */
+	BLI_argsAdd(ba, 1, "/?", NULL, CB_EX(arg_handle_print_help, win32), ba);
+
+	BLI_argsAdd(ba, 1, "-v", "--version", CB(arg_handle_print_version), NULL);
+
+	BLI_argsAdd(ba, 1, "-y", "--enable-autoexec", CB_EX(arg_handle_python_set, enable), (void *)true);
+	BLI_argsAdd(ba, 1, "-Y", "--disable-autoexec", CB_EX(arg_handle_python_set, disable), (void *)false);
+
+	BLI_argsAdd(ba, 1, NULL, "--disable-crash-handler", CB(arg_handle_crash_handler_disable), NULL);
+	BLI_argsAdd(ba, 1, NULL, "--disable-abort-handler", CB(arg_handle_abort_handler_disable), NULL);
+
+	BLI_argsAdd(ba, 1, "-b", "--background", CB(arg_handle_background_mode_set), NULL);
+
+	BLI_argsAdd(ba, 1, "-a", NULL, CB(arg_handle_playback_mode), NULL);
+
+	BLI_argsAdd(ba, 1, "-d", "--debug", CB(arg_handle_debug_mode_set), ba);
+
+#ifdef WITH_FFMPEG
+	BLI_argsAdd(ba, 1, NULL, "--debug-ffmpeg",
+	            CB_EX(arg_handle_debug_mode_generic_set, ffmpeg), (void *)G_DEBUG_FFMPEG);
+#endif
+
+#ifdef WITH_FREESTYLE
+	BLI_argsAdd(ba, 1, NULL, "--debug-freestyle",
+	            CB_EX(arg_handle_debug_mode_generic_set, freestyle), (void *)G_DEBUG_FREESTYLE);
+#endif
+
+	BLI_argsAdd(ba, 1, NULL, "--debug-python",
+	            CB_EX(arg_handle_debug_mode_generic_set, python), (void *)G_DEBUG_PYTHON);
+	BLI_argsAdd(ba, 1, NULL, "--debug-events",
+	            CB_EX(arg_handle_debug_mode_generic_set, events), (void *)G_DEBUG_EVENTS);
+	BLI_argsAdd(ba, 1, NULL, "--debug-handlers",
+	            CB_EX(arg_handle_debug_mode_generic_set, handlers), (void *)G_DEBUG_HANDLERS);
+	BLI_argsAdd(ba, 1, NULL, "--debug-wm",
+	            CB_EX(arg_handle_debug_mode_generic_set, wm), (void *)G_DEBUG_WM);
+	BLI_argsAdd(ba, 1, NULL, "--debug-all",
+	            CB_EX(arg_handle_debug_mode_generic_set, all), (void *)G_DEBUG_ALL);
+
+	BLI_argsAdd(ba, 1, NULL, "--debug-fpe",
+	            CB(arg_handle_debug_fpe_set), NULL);
+
+#ifdef WITH_LIBMV
+	BLI_argsAdd(ba, 1, NULL, "--debug-libmv", CB(arg_handle_debug_mode_libmv), NULL);
+#endif
+#ifdef WITH_CYCLES_LOGGING
+	BLI_argsAdd(ba, 1, NULL, "--debug-cycles", CB(arg_handle_debug_mode_cycles), NULL);
+#endif
+	BLI_argsAdd(ba, 1, NULL, "--debug-memory", CB(arg_handle_debug_mode_memory_set), NULL);
+
+	BLI_argsAdd(ba, 1, NULL, "--debug-value",
+	            CB(arg_handle_debug_value_set), NULL);
+	BLI_argsAdd(ba, 1, NULL, "--debug-jobs",
+	            CB_EX(arg_handle_debug_mode_generic_set, jobs), (void *)G_DEBUG_JOBS);
+	BLI_argsAdd(ba, 1, NULL, "--debug-gpu",
+	            CB_EX(arg_handle_debug_mode_generic_set, gpu), (void *)G_DEBUG_GPU);
+	BLI_argsAdd(ba, 1, NULL, "--debug-depsgraph",
+	            CB_EX(arg_handle_debug_mode_generic_set, depsgraph), (void *)G_DEBUG_DEPSGRAPH);
+	BLI_argsAdd(ba, 1, NULL, "--debug-depsgraph-no-threads",
+	            CB_EX(arg_handle_debug_mode_generic_set, depsgraph_no_threads), (void *)G_DEBUG_DEPSGRAPH_NO_THREADS);
+	BLI_argsAdd(ba, 1, NULL, "--debug-gpumem",
+	            CB_EX(arg_handle_debug_mode_generic_set, gpumem), (void *)G_DEBUG_GPU_MEM);
+
+	BLI_argsAdd(ba, 1, NULL, "--enable-new-depsgraph", CB(arg_handle_depsgraph_use_new), NULL);
+
+	BLI_argsAdd(ba, 1, NULL, "--verbose", CB(arg_handle_verbosity_set), NULL);
+
+	BLI_argsAdd(ba, 1, NULL, "--factory-startup", CB(arg_handle_factory_startup_set), NULL);
+
+	/* TODO, add user env vars? */
+	BLI_argsAdd(ba, 1, NULL, "--env-system-datafiles", CB_EX(arg_handle_env_system_set, datafiles), NULL);
+	BLI_argsAdd(ba, 1, NULL, "--env-system-scripts", CB_EX(arg_handle_env_system_set, scripts), NULL);
+	BLI_argsAdd(ba, 1, NULL, "--env-system-python", CB_EX(arg_handle_env_system_set, python), NULL);
+
+	/* second pass: custom window stuff */
+	BLI_argsAdd(ba, 2, "-p", "--window-geometry", CB(arg_handle_window_geometry), NULL);
+	BLI_argsAdd(ba, 2, "-w", "--window-border", CB(arg_handle_with_borders), NULL);
+	BLI_argsAdd(ba, 2, "-W", "--window-borderless", CB(arg_handle_without_borders), NULL);
+	BLI_argsAdd(ba, 2, "-con", "--start-console", CB(arg_handle_start_with_console), NULL);
+	BLI_argsAdd(ba, 2, "-R", NULL, CB(arg_handle_register_extension), NULL);
+	BLI_argsAdd(ba, 2, "-r", NULL, CB_EX(arg_handle_register_extension, silent), ba);
+	BLI_argsAdd(ba, 2, NULL, "--no-native-pixels", CB(arg_handle_native_pixels_set), ba);
+
+	/* third pass: disabling things and forcing settings */
+	BLI_argsAddCase(ba, 3, "-nojoystick", 1, NULL, 0, CB(arg_handle_joystick_disable), syshandle);
+	BLI_argsAddCase(ba, 3, "-noglsl", 1, NULL, 0, CB(arg_handle_glsl_disable), NULL);
+	BLI_argsAddCase(ba, 3, "-noaudio", 1, NULL, 0, CB(arg_handle_audio_disable), NULL);
+	BLI_argsAddCase(ba, 3, "-setaudio", 1, NULL, 0, CB(arg_handle_audio_set), NULL);
+
+	/* fourth pass: processing arguments */
+	BLI_argsAdd(ba, 4, "-g", NULL, CB(arg_handle_ge_parameters_set), syshandle);
+	BLI_argsAdd(ba, 4, "-f", "--render-frame", CB(arg_handle_render_frame), C);
+	BLI_argsAdd(ba, 4, "-a", "--render-anim", CB(arg_handle_render_animation), C);
+	BLI_argsAdd(ba, 4, "-S", "--scene", CB(arg_handle_scene_set), C);
+	BLI_argsAdd(ba, 4, "-s", "--frame-start", CB(arg_handle_frame_start_set), C);
+	BLI_argsAdd(ba, 4, "-e", "--frame-end", CB(arg_handle_frame_end_set), C);
+	BLI_argsAdd(ba, 4, "-j", "--frame-jump", CB(arg_handle_frame_skip_set), C);
+	BLI_argsAdd(ba, 4, "-P", "--python", CB(arg_handle_python_file_run), C);
+	BLI_argsAdd(ba, 4, NULL, "--python-text", CB(arg_handle_python_text_run), C);
+	BLI_argsAdd(ba, 4, NULL, "--python-expr", CB(arg_handle_python_expr_run), C);
+	BLI_argsAdd(ba, 4, NULL, "--python-console", CB(arg_handle_python_console_run), C);
+	BLI_argsAdd(ba, 4, NULL, "--python-exit-code", CB(arg_handle_python_exit_code_set), NULL);
+	BLI_argsAdd(ba, 4, NULL, "--addons", CB(arg_handle_addons_set), C);
+
+	BLI_argsAdd(ba, 4, "-o", "--render-output", CB(arg_handle_output_set), C);
+	BLI_argsAdd(ba, 4, "-E", "--engine", CB(arg_handle_engine_set), C);
+
+	BLI_argsAdd(ba, 4, "-F", "--render-format", CB(arg_handle_image_type_set), C);
+	BLI_argsAdd(ba, 4, "-t", "--threads", CB(arg_handle_threads_set), NULL);
+	BLI_argsAdd(ba, 4, "-x", "--use-extension", CB(arg_handle_extension_set), C);
+
+#undef CB
+#undef CB_EX
+
+}
+
+/**
+ * Needs to be added separately.
+ */
+void main_args_setup_post(bContext *C, bArgs *ba)
+{
+	BLI_argsParse(ba, 4, arg_handle_load_file, C);
+}
+
+/** \} */
+
+#endif /* WITH_PYTHON_MODULE */