DirectoryWatcher will notify you whenever files or file list has changed in a directory.

1. Create the watcher.

var watcher = DirectoryWatcher.new()
add_child(watcher)

2. Add a directory to watch.

watcher.add_scan_directory("res://directory")

(automatically gets converted to absolute path; you can add more than 1)

3. Connect signals.

watcher.files_created.connect(on_files_created)
watcher.files_modified.connect(on_files_modified)
watcher.files_deleted.connect(on_files_deleted)

4. Enjoy.

DirectoryWatcher will periodically crawl over the files in a directory and report all file changes. Sub-directories are ignored and the scan isn't recursive. To reduce I/O operations, the scan runs every second and scans 50 files per frame inside _process() method. Rate of scan and files per frame are configurable with scan_delay and scan_step variables.

watcher.scan_delay = 0.5
watcher.scan_step = 20

The signals are emitted at the end of a scan cycle and files are passed as absolute paths.

You can deregister a directory by using remove_scan_directory(). This will take effect at the end of the current scan cycle. The class has built-in documentation.

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