Add script formatting plugin

Requires gdtoolkit to be installed on the system

addons/format_on_save/LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2023 Ryan Haskell-Glatz
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

addons/format_on_save/format_on_save.gd

@@ -0,0 +1,70 @@
+@tool
+class_name FormatOnSave extends EditorPlugin
+
+const SUCCESS: int = 0
+const AUTO_RELOAD_SETTING: String = "text_editor/behavior/files/auto_reload_scripts_on_external_change"
+var original_auto_reload_setting: bool
+
+
+# LIFECYCLE EVENTS
+func _enter_tree():
+	activate_auto_reload_setting()
+	resource_saved.connect(on_resource_saved)
+
+
+func _exit_tree():
+	resource_saved.disconnect(on_resource_saved)
+	restore_original_auto_reload_setting()
+
+
+# CALLED WHEN A SCRIPT IS SAVED
+func on_resource_saved(resource: Resource):
+	if resource is Script:
+		var script: Script = resource
+		var current_script = get_editor_interface().get_script_editor().get_current_script()
+		var text_edit: CodeEdit = (
+			get_editor_interface().get_script_editor().get_current_editor().get_base_editor()
+		)
+
+		# Prevents other unsaved scripts from overwriting the active one
+		if current_script == script:
+			var filepath: String = ProjectSettings.globalize_path(resource.resource_path)
+
+			# Run gdformat
+			var exit_code = OS.execute("gdformat", [filepath])
+
+			# Replace source_code with formatted source_code
+			if exit_code == SUCCESS:
+				var formatted_source = FileAccess.get_file_as_string(resource.resource_path)
+				FormatOnSave.reload_script(text_edit, formatted_source)
+
+
+# Workaround until this PR is merged:
+# https://github.com/godotengine/godot/pull/83267
+# Thanks, @KANAjetzt 💖
+static func reload_script(text_edit: TextEdit, source_code: String) -> void:
+	var column := text_edit.get_caret_column()
+	var row := text_edit.get_caret_line()
+	var scroll_position_h := text_edit.get_h_scroll_bar().value
+	var scroll_position_v := text_edit.get_v_scroll_bar().value
+
+	text_edit.text = source_code
+	text_edit.set_caret_column(column)
+	text_edit.set_caret_line(row)
+	text_edit.scroll_horizontal = scroll_position_h
+	text_edit.scroll_vertical = scroll_position_v
+
+	text_edit.tag_saved_version()
+
+
+# For this workaround to work, we need to disable the "Reload/Resave" pop-up
+func activate_auto_reload_setting():
+	var settings := get_editor_interface().get_editor_settings()
+	original_auto_reload_setting = settings.get(AUTO_RELOAD_SETTING)
+	settings.set(AUTO_RELOAD_SETTING, true)
+
+
+# If the plugin is disabled, let's attempt to restore the original editor setting
+func restore_original_auto_reload_setting():
+	var settings := get_editor_interface().get_editor_settings()
+	settings.set(AUTO_RELOAD_SETTING, original_auto_reload_setting)

addons/format_on_save/plugin.cfg

@@ -0,0 +1,6 @@
+[plugin]
+name="Format on Save"
+description="Runs `gdformat` on save to automatically format your GD script as you code."
+author="Ryan Haskell-Glatz"
+version="1.2.0"
+script="format_on_save.gd"

project.godot

@@ -29,7 +29,7 @@ project/assembly_name="Character Controller"
 
 [editor_plugins]
 
-enabled=PackedStringArray("res://addons/qodot/plugin.cfg")
+enabled=PackedStringArray("res://addons/format_on_save/plugin.cfg", "res://addons/qodot/plugin.cfg")
 
 [input]