A publisher that emits events in the file system.

What's New

Version 3


Added DocC documentation.


A publisher that emits events in the file system.


The FileSystemEventPublisher framework wraps a Combine Publisher around a DispatchSourceFileSystemObject, providing a modern high-level interface to an efficient way of monitoring filesystem events.


A typealias and a function are all the exposed interface, the Combine framework provides all remaining functionality.

The publisher is created by a function with two parameters: a file and a set of events; this signature reflects the underlying DispatchSource interface and was adopted for it's simplicity and performance.

The first parameter is a mask containing events of interest. The set of events are defined by a typealias to DispatchSoutce.FileSystemEvent. This type is also the Output of the created publisher, i.e., the type of values to be delivered to subscribers.

The second parameter is a FileDescriptor pointing to an open file, folder or socket.

The package includes a playground with a short example code.


  • Swift Tools 5.5.0
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Last updated: Fri Mar 24 2023 10:51:40 GMT-0500 (GMT-05:00)