move debouncer code into its own crate

That way the public API that isn't used doesn't have to be `dead_code`.

Also adjust CI to run the tests we have in the debouncer crate.
Previously, it might not have run them though.

.github/workflows/push.yaml

@@ -54,7 +54,7 @@ jobs:
               - 'crates/gitbutler-cli/**'
             gitbutler-watcher:
               - *rust
-              - 'crates/gitbutler-cli/**'
+              - 'crates/gitbutler-watcher/**'
 
   lint-node:
     needs: changes
@@ -228,7 +228,7 @@ jobs:
       - uses: ./.github/actions/init-env-rust
       - uses: ./.github/actions/check-crate
         with:
-          crate: gitbutler-watcher
+          crate: gitbutler-notify-debouncer
           features: ${{ toJson(matrix.features) }}
           action: ${{ matrix.action }}
 

Cargo.lock

@@ -2177,6 +2177,24 @@ dependencies = [
  "windows-named-pipe",
 ]
 
+[[package]]
+name = "gitbutler-notify-debouncer"
+version = "0.0.0"
+dependencies = [
+ "crossbeam-channel",
+ "deser-hjson",
+ "file-id",
+ "gitbutler-notify-debouncer",
+ "mock_instant",
+ "notify",
+ "parking_lot 0.12.3",
+ "pretty_assertions",
+ "rstest",
+ "serde",
+ "tracing",
+ "walkdir",
+]
+
 [[package]]
 name = "gitbutler-tauri"
 version = "0.0.0"
@@ -2232,26 +2250,15 @@ version = "0.0.0"
 dependencies = [
  "anyhow",
  "backoff",
- "crossbeam-channel",
- "deser-hjson",
- "file-id",
  "futures",
  "gitbutler-core",
- "gitbutler-watcher",
+ "gitbutler-notify-debouncer",
  "gix",
- "itertools 0.13.0",
- "mock_instant",
  "notify",
- "parking_lot 0.12.3",
- "pretty_assertions",
- "rand 0.8.5",
- "rstest",
- "serde",
  "thiserror",
  "tokio",
  "tokio-util",
  "tracing",
- "walkdir",
 ]
 
 [[package]]

Cargo.toml

@@ -4,6 +4,7 @@ members = [
     "crates/gitbutler-tauri",
     "crates/gitbutler-git",
     "crates/gitbutler-watcher",
+    "crates/gitbutler-watcher/vendor/debouncer",
     "crates/gitbutler-testsupport",
     "crates/gitbutler-cli",
 ]

crates/gitbutler-watcher/Cargo.toml

@@ -5,11 +5,9 @@ edition = "2021"
 publish = false
 
 [lib]
+test = false
 doctest = false
 
-[features]
-mock_instant = ["dep:mock_instant"]
-
 [dependencies]
 gitbutler-core.workspace = true
 thiserror.workspace = true
@@ -22,21 +20,7 @@ gix = { workspace = true, features = ["excludes"] }
 
 backoff = "0.4.0"
 notify = { version = "6.0.1" }
-parking_lot = "0.12.3"
-file-id = "0.2.1"
-walkdir = "2.2.2"
-crossbeam-channel = "0.5.13"
-itertools = "0.13"
-
-mock_instant = { version = "0.3.2", optional = true }
-
-[dev-dependencies]
-gitbutler-watcher = { path = ".", features = ["mock_instant"] }
-pretty_assertions = "1.3.0"
-rstest = "0.20"
-serde = { version = "1.0.203", features = ["derive"] }
-deser-hjson = "1.1.1"
-rand = "0.8.5"
+gitbutler-notify-debouncer.path = "vendor/debouncer"
 
 [lints.clippy]
 all = "deny"

crates/gitbutler-watcher/src/file_monitor.rs

@@ -2,12 +2,11 @@ use std::collections::HashSet;
 use std::path::Path;
 use std::time::Duration;
 
-use crate::debouncer::Debouncer;
-use crate::debouncer::FileIdMap;
-use crate::{debouncer::new_debouncer, events::InternalEvent};
+use crate::events::InternalEvent;
 use anyhow::{anyhow, Context, Result};
 use gitbutler_core::ops::OPLOG_FILE_NAME;
 use gitbutler_core::projects::ProjectId;
+use gitbutler_notify_debouncer::{new_debouncer, Debouncer, FileIdMap};
 use notify::RecommendedWatcher;
 use notify::Watcher;
 use tokio::task;

crates/gitbutler-watcher/src/lib.rs

@@ -18,7 +18,6 @@ use tokio::{
 };
 use tokio_util::sync::CancellationToken;
 
-mod debouncer;
 mod file_monitor;
 mod handler;
 

crates/gitbutler-watcher/vendor/debouncer/Cargo.toml

@@ -0,0 +1,34 @@
+[package]
+name = "gitbutler-notify-debouncer"
+version = "0.0.0"
+edition = "2021"
+publish = false
+
+[lib]
+doctest = false
+
+[features]
+mock_instant = ["dep:mock_instant"]
+
+[dependencies]
+tracing = "0.1.40"
+
+notify = { version = "6.0.1" }
+parking_lot = "0.12.3"
+file-id = "0.2.1"
+walkdir = "2.2.2"
+crossbeam-channel = "0.5.13"
+
+mock_instant = { version = "0.3.2", optional = true }
+
+[dev-dependencies]
+gitbutler-notify-debouncer = { path = ".", features = ["mock_instant"] }
+pretty_assertions = "1.4.0"
+rstest = "0.20"
+serde = { version = "1.0.203", features = ["derive"] }
+deser-hjson = "1.1.1"
+
+[lints.clippy]
+all = "deny"
+perf = "deny"
+correctness = "deny"

crates/gitbutler-watcher/vendor/debouncer/src/cache.rs

@@ -94,7 +94,6 @@ impl FileIdMap {
     /// Remove a path form the cache.
     ///
     /// If the path was added with `Recursive` mode, all children will also be removed from the cache.
-    #[allow(dead_code)]
     pub fn remove_root(&mut self, path: impl AsRef<Path>) {
         self.roots.retain(|(root, _)| !root.starts_with(&path));
 

crates/gitbutler-watcher/vendor/debouncer/src/lib.rs

@@ -495,7 +495,6 @@ pub struct Debouncer<T: Watcher, C: FileIdCache> {
 impl<T: Watcher, C: FileIdCache> Debouncer<T, C> {
     /// Stop the debouncer, waits for the event thread to finish.
     /// May block for the duration of one tick_rate.
-    #[allow(dead_code)]
     pub fn stop(mut self) {
         self.set_stop();
         if let Some(t) = self.debouncer_thread.take() {
@@ -504,7 +503,6 @@ impl<T: Watcher, C: FileIdCache> Debouncer<T, C> {
     }
 
     /// Stop the debouncer, does not wait for the event thread to finish.
-    #[allow(dead_code)]
     pub fn stop_nonblocking(self) {
         self.set_stop();
     }

crates/gitbutler-watcher/vendor/debouncer/src/tests/mod.rs

@@ -166,7 +166,7 @@ fn state(
 
 mod schema;
 mod utils {
-    use crate::debouncer::FileIdCache;
+    use crate::FileIdCache;
 
     use file_id::FileId;
     use std::collections::HashMap;

crates/gitbutler-watcher/vendor/debouncer/src/tests/schema.rs

@@ -27,7 +27,7 @@
 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
 // IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 // DEALINGS IN THE SOFTWARE.
-use crate::debouncer::{DebounceDataInner, DebouncedEvent};
+use crate::{DebounceDataInner, DebouncedEvent};
 use file_id::FileId;
 use mock_instant::Instant;
 use notify::event::{
@@ -241,7 +241,7 @@ impl State {
             .queues
             .into_iter()
             .map(|(path, queue)| {
-                let queue = crate::debouncer::Queue {
+                let queue = crate::Queue {
                     events: queue
                         .events
                         .into_iter()