Fix clippy warnings

Cargo.lock

@@ -375,8 +375,9 @@ checksum = "3c1ad908cc71012b7bea4d0c53ba96a8cba9962f048fa68d143376143d863b7a"
 
 [[package]]
 name = "inotify"
-version = "0.9.0"
-source = "git+https://github.com/htrefil/inotify/#3838a9f0d080a6e0d41ad5dc1bcaa90a8828232b"
+version = "0.9.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "04c6848dfb1580647ab039713282cdd1ab2bfb47b60ecfb598e22e60e3baf3f8"
 dependencies = [
  "bitflags",
  "futures-core",

input/src/event/button.rs

@@ -1,6 +1,7 @@
 use serde::{Deserialize, Serialize};
+use std::hash::{Hash, Hasher};
 
-#[derive(Clone, Copy, Debug, Eq, Serialize, Deserialize, Hash)]
+#[derive(Clone, Copy, Debug, Eq, Serialize, Deserialize)]
 pub enum Button {
     A,
     B,
@@ -254,7 +255,7 @@ impl Button {
         use Button::*;
 
         // This is generated from linux headers, some patterns are unreachable, and we don't care.
-        #[allow(unreachable_patterns)]
+        #[allow(unreachable_patterns, clippy::match_overlapping_arm)]
         let button = match code {
             0x0130 => A,
             0x0131 => B,
@@ -385,3 +386,12 @@ impl PartialEq for Button {
         self.to_raw() == other.to_raw()
     }
 }
+
+impl Hash for Button {
+    fn hash<H>(&self, state: &mut H)
+    where
+        H: Hasher,
+    {
+        self.to_raw().hash(state)
+    }
+}

input/src/event/key.rs

@@ -1,6 +1,7 @@
 use serde::{Deserialize, Serialize};
+use std::hash::{Hash, Hasher};
 
-#[derive(Clone, Copy, Debug, Eq, Serialize, Deserialize, Hash)]
+#[derive(Clone, Copy, Debug, Eq, Serialize, Deserialize)]
 pub enum Key {
     A,
     Ab,
@@ -1487,3 +1488,12 @@ impl PartialEq for Key {
         self.to_raw() == other.to_raw()
     }
 }
+
+impl Hash for Key {
+    fn hash<H>(&self, state: &mut H)
+    where
+        H: Hasher,
+    {
+        self.to_raw().hash(state)
+    }
+}

input/src/event_writer.rs

@@ -12,7 +12,7 @@ pub struct EventWriter {
 
 impl EventWriter {
     pub async fn new() -> Result<Self, Error> {
-        tokio::task::spawn_blocking(|| Self::new_sync()).await?
+        tokio::task::spawn_blocking(Self::new_sync).await?
     }
 
     fn new_sync() -> Result<Self, Error> {
@@ -109,7 +109,7 @@ unsafe fn setup_evdev(evdev: *mut libevdev) -> Result<(), Error> {
             return Err(Error::from_raw_os_error(-ret));
         }
 
-        for code in codes.iter().cloned().flat_map(|code| code) {
+        for code in codes.iter().cloned().flatten() {
             let ret = glue::libevdev_enable_event_code(evdev, r#type, code, std::ptr::null_mut());
             if ret < 0 {
                 return Err(Error::from_raw_os_error(-ret));

server/src/main.rs

@@ -101,7 +101,7 @@ async fn run(
                     .await
                     .err()
                     .map(|err| format!(" ({})", err))
-                    .unwrap_or(String::new());
+                    .unwrap_or_else(String::new);
                 log::info!("{}: disconnected{}", address, message);
             });
         }
@@ -121,17 +121,13 @@ async fn run(
                 let event = event?;
                 if let Event::Key { direction, kind: KeyKind::Key(key) } = event {
                     if let Some(state) = key_states.get_mut(&key) {
-                        *state = if direction == Direction::Down {
-                            true
-                        } else {
-                            false
-                        };
+                        *state = direction == Direction::Down;
                     }
                 }
 
                 // TODO: This won't work with multiple keys.
                 if key_states.iter().filter(|(_, state)| **state).count() == key_states.len() {
-                    for (_, state) in &mut key_states {
+                    for state in key_states.values_mut() {
                         *state = false;
                     }