Notify debouncer

Tiny debouncer for notify. Filters incoming events and emits only one event per timeframe per file.

Features

• crossbeam enabled by default, for crossbeam channel support.
  This may create problems used in tokio environments. See #380.
  Use something like the following to disable it.

notify-debouncer-mini = { version = "*", default-features = false }

This also passes through to notify as crossbeam-channel feature.

• serde for serde support of event types, off by default

lib.rs:

Debouncer for notify. Filters incoming events and emits only one event per timeframe per file.

Installation

[dependencies]
notify-debouncer-mini = "0.4.1"

In case you want to select specific features of notify, specify notify as dependency explicitly in your dependencies. Otherwise you can just use the re-export of notify from debouncer-mini.

notify-debouncer-mini = "0.4.1"
notify = { version = "..", features = [".."] }

Examples

See also the full configuration example here.

use notify_debouncer_mini::{notify::*,new_debouncer,DebounceEventResult};

  // Select recommended watcher for debouncer.
  // Using a callback here, could also be a channel.
  let mut debouncer = new_debouncer(Duration::from_secs(2), |res: DebounceEventResult| {
      match res {
          Ok(events) => events.iter().for_each(|e|println!("Event {:?} for {:?}",e.kind,e.path)),
          Err(e) => println!("Error {:?}",e),
      }
  }).unwrap();

  // Add a path to be watched. All files and directories at that path and
  // below will be monitored for changes.
  debouncer.watcher().watch(Path::new("."), RecursiveMode::Recursive).unwrap();

  // note that dropping the debouncer (as will happen here) also ends the debouncer
  // thus this demo would need an endless loop to keep running

Features

The following crate features can be turned on or off in your cargo dependency config:

• crossbeam enabled by default, adds DebounceEventHandler support for crossbeam channels. Also enables crossbeam-channel in the re-exported notify. You may want to disable this when using the tokio async runtime.
• serde enables serde support for events.

Caveats

As all file events are sourced from notify, the known problems section applies here too.