chore: add GUT test framework

addons/gut/scratch/demo_generate_all_warnings.gd

@@ -0,0 +1,105 @@
+# ------------------------------------------------------------------------------
+# This script loads scripts so you can see a list of all the warnings that
+# are generated by your scripts.
+# 	* Sets all ERROR warnings to WARN
+#	* Loads all scripts in "res" and all subdirectories (by default)
+#	* If you specify a path after the script it will load that path instead
+#
+# You must run this script with the -d option or errors/warnings are not
+# printed by Godot.
+#
+# Example:
+# 	godot -d -s scratch/demo_generate_all_warnings.gd
+#	godot -d -s scratch/demo_generate_all_warnings.gd res://addons/my_addon
+# ------------------------------------------------------------------------------
+extends SceneTree
+
+var include_subdirectories := true
+const GDSCRIPT_WARNING = 'debug/gdscript/warnings/'
+
+
+# ------------------------------------------------------------------------------
+# Gets all the files in a directory and all subdirectories if include_subdirectories
+# is true.  The files returned are all sorted by name.
+# ------------------------------------------------------------------------------
+func get_files(path: String, prefix: String, suffix: String) -> Array[String]:
+	var files: Array[String] = []
+	var directories: Array[String] = []
+
+	var d := DirAccess.open(path)
+	d.list_dir_begin()
+
+	# Traversing a directory is kinda odd.  You have to start the process of listing
+	# the contents of a directory with list_dir_begin then use get_next until it
+	# returns an empty string.  Then I guess you should end it.
+	var fs_item := d.get_next()
+	var full_path := ''
+	while fs_item != '':
+		full_path = path.path_join(fs_item)
+
+		#file_exists returns fasle for directories
+		if d.file_exists(full_path):
+			if fs_item.begins_with(prefix) and fs_item.ends_with(suffix):
+				files.append(full_path)
+		elif include_subdirectories and d.dir_exists(full_path):
+			directories.append(full_path)
+
+		fs_item = d.get_next()
+	d.list_dir_end()
+
+	for dir in range(directories.size()):
+		var dir_files := get_files(directories[dir], prefix, suffix)
+		for i in range(dir_files.size()):
+			files.append(dir_files[i])
+
+	files.sort()
+	return files
+
+
+func set_all_errors_to_warnings() -> void:
+	var props := ProjectSettings.get_property_list()
+	for prop in props:
+		var prop_name: String = prop.name
+		var prop_hint_string: String = prop.hint_string
+		if prop_name.begins_with(GDSCRIPT_WARNING) and\
+			prop_hint_string == 'Ignore,Warn,Error' and \
+			ProjectSettings.get_setting(prop_name) == 2:
+				print('Changed [', prop_name.replace(GDSCRIPT_WARNING, ''), '] to WARN')
+				ProjectSettings.set_setting(prop_name, 1)
+
+
+func load_all_scripts(path:String) -> void:
+	var files := get_files(path, '', '.gd')
+	for f in files:
+		print("---- ", f, " ----")
+		var _thing := load(f)
+
+
+# get_cmdline_args always has -s as first and the script path as the second
+# argument.  All other arguments used by the engine do not appear in
+# get_cmdline_args.
+#
+# This treats the 3rd argument as the directory.  All other arguments are
+# ignored.
+func get_directory_to_load(default) -> String:
+	var args = OS.get_cmdline_args()
+	var to_return = default
+
+	if(args.size() > 2):
+		to_return = args[2]
+
+	return to_return
+
+
+func _init() -> void:
+	if(EngineDebugger.is_active()):
+		var dir = get_directory_to_load('res://')
+		print('Loading scripts from ', dir)
+		set_all_errors_to_warnings()
+		load_all_scripts(dir)
+	else:
+		print("This script must be run with -d flag or warnings/errors will not be displayed.")
+
+	quit()
+
+