61 lines
1.4 KiB
GDScript
61 lines
1.4 KiB
GDScript
class_name FileWatcher
|
|
|
|
signal file_changed
|
|
|
|
var file_name: String setget set_file_name
|
|
var scan_delay_s: float = 1.0 setget set_scan_delay_s
|
|
|
|
var _file := File.new()
|
|
var _last_modified: int = 0
|
|
var _timer := Timer.new()
|
|
|
|
|
|
func _init() -> void:
|
|
# warning-ignore:return_value_discarded
|
|
_timer.connect("timeout", self, "check")
|
|
_timer.wait_time = scan_delay_s
|
|
|
|
|
|
func set_file_name(new_file_name: String) -> void:
|
|
if file_name == new_file_name:
|
|
return
|
|
file_name = new_file_name
|
|
if file_name.begins_with("res://") or file_name.begins_with("user://"):
|
|
file_name = ProjectSettings.globalize_path(file_name)
|
|
_last_modified = _file.get_modified_time(file_name)
|
|
_timer.name = "__file_watcher_%s"%[file_name]
|
|
|
|
|
|
func set_scan_delay_s(new_scan_delay_s: float) -> void:
|
|
scan_delay_s = new_scan_delay_s
|
|
_timer.wait_time = scan_delay_s
|
|
|
|
|
|
func check() -> void:
|
|
if file_name == "":
|
|
return
|
|
var new_modified := _file.get_modified_time(file_name)
|
|
if new_modified != _last_modified:
|
|
_last_modified = new_modified
|
|
emit_signal("file_changed")
|
|
|
|
|
|
func start() -> void:
|
|
if not _timer.is_inside_tree():
|
|
var main_loop: SceneTree = Engine.get_main_loop()
|
|
var root := main_loop.root
|
|
if root == null:
|
|
printerr("Called start before any scene is loaded")
|
|
return
|
|
if not root.is_inside_tree():
|
|
yield(root, "ready")
|
|
root.call_deferred("add_child", _timer, true)
|
|
yield(_timer, "ready")
|
|
_timer.start()
|
|
|
|
|
|
func stop() -> void:
|
|
_timer.stop()
|
|
|
|
|