Add clippyboard-clear command

Cargo.toml

@@ -9,6 +9,9 @@ name = "clippyboard-daemon"
 [[bin]]
 name = "clippyboard-select"
 
+[[bin]]
+name = "clippyboard-clear"
+
 [dependencies]
 ciborium = "0.2.2"
 ctrlc = "3.5.0"
@@ -22,3 +25,6 @@ tracing = { version = "0.1.41", features = ["attributes"] }
 tracing-subscriber = { version = "0.3.20", features = ["env-filter"] }
 wayland-client = "0.31.11"
 wayland-protocols = { version = "0.32.9", features = ["staging"] }
+
+[profile.release]
+lto = "thin"

default.nix

@@ -25,6 +25,8 @@
       --suffix LD_LIBRARY_PATH : ${pkgs.lib.makeLibraryPath buildInputs}
     wrapProgram $out/bin/clippyboard-daemon \
       --suffix LD_LIBRARY_PATH : ${pkgs.lib.makeLibraryPath buildInputs}
+    wrapProgram $out/bin/clippyboard-clear \
+      --suffix LD_LIBRARY_PATH : ${pkgs.lib.makeLibraryPath buildInputs}
   '';
 
   cargoLock.lockFile = ./Cargo.lock;

src/bin/clippyboard-clear.rs

@@ -0,0 +1,19 @@
+use std::{io::Write, os::unix::net::UnixStream};
+
+use eyre::Context;
+
+fn main() -> eyre::Result<()> {
+    let socket_path = clippyboard::socket_path()?;
+
+    let mut socket = UnixStream::connect(&socket_path).wrap_err_with(|| {
+        format!(
+            "connecting to socket at {}. is the daemon running?",
+            socket_path.display()
+        )
+    })?;
+    socket
+        .write_all(&[clippyboard::MESSAGE_CLEAR])
+        .wrap_err("writing clear message to socket")?;
+
+    Ok(())
+}

src/daemon.rs

@@ -375,6 +375,10 @@ fn handle_peer(mut peer: UnixStream, shared_state: &SharedState) -> eyre::Result
         super::MESSAGE_COPY => {
             handle_copy_message(peer, shared_state).wrap_err("handling copy message")?;
         }
+        super::MESSAGE_CLEAR => {
+            shared_state.items.lock().unwrap().clear();
+            info!("Cleared history");
+        }
         _ => {}
     };
     Ok(())

src/lib.rs

@@ -29,9 +29,10 @@ fn serialize_data<S: Serializer>(data: &Arc<[u8]>, serializer: S) -> Result<S::O
     data.serialize(serializer)
 }
 
-const MESSAGE_READ: u8 = 1;
+pub const MESSAGE_READ: u8 = 1;
 /// Argument: One u64-bit LE value, the ID
-const MESSAGE_COPY: u8 = 2;
+pub const MESSAGE_COPY: u8 = 2;
+pub const MESSAGE_CLEAR: u8 = 3;
 
 pub fn socket_path() -> eyre::Result<PathBuf> {
     if let Some(path) = std::env::var_os("CLIPPYBOARD_SOCKET") {