style(peer): format security hardening

Record the deterministic nightly rustfmt output for the newly added event-channel and retry code after the repository-wide formatter gate was repaired.

Test Plan:
- just fmt
- just clippy
- git diff --check

crates/lanspread-peer/src/context.rs

@@ -110,10 +110,7 @@ pub(crate) struct OutboundTransferNotifier {
 }
 
 impl OutboundTransferNotifier {
-    fn new(
-        state: Arc<AtomicU8>,
-        tx_notify_ui: PeerEventSender,
-    ) -> Self {
+    fn new(state: Arc<AtomicU8>, tx_notify_ui: PeerEventSender) -> Self {
         Self {
             state,
             tx_notify_ui,
@@ -241,10 +238,7 @@ impl NetworkServiceCtx {
         }
     }
 
-    pub(crate) fn to_peer_ctx(
-        &self,
-        tx_notify_ui: PeerEventSender,
-    ) -> PeerCtx {
+    pub(crate) fn to_peer_ctx(&self, tx_notify_ui: PeerEventSender) -> PeerCtx {
         self.core.to_peer_ctx(tx_notify_ui, self.shutdown.clone())
     }
 }

crates/lanspread-peer/src/download/orchestrator.rs

@@ -9,7 +9,6 @@ use std::{
 use futures::stream::FuturesUnordered;
 use lanspread_db::content_manifest::ContentId;
 use lanspread_proto::PeerEndpoint;
-use crate::PeerEventSender;
 use tokio_util::sync::CancellationToken;
 
 use super::{
@@ -42,6 +41,7 @@ use crate::{
     DownloadFailureReason,
     DownloadVerificationActivity,
     PeerEvent,
+    PeerEventSender,
     content_quarantine::ContentQuarantine,
     peer_db::PeerId,
     quic_runtime::QuicConnector,

crates/lanspread-peer/src/download/retry.rs

@@ -425,7 +425,12 @@ mod tests {
             .map(|index| {
                 source_at(
                     &format!("peer-{index}"),
-                    [192, 0, 2, u8::try_from(index + 1).expect("source index fits")],
+                    [
+                        192,
+                        0,
+                        2,
+                        u8::try_from(index + 1).expect("source index fits"),
+                    ],
                     12000 + index,
                 )
             })

crates/lanspread-peer/src/handlers.rs

@@ -14,7 +14,6 @@ use lanspread_db::{
     db::GameDB,
 };
 use lanspread_proto::PeerEndpoint;
-use crate::PeerEventSender;
 use tokio_util::sync::CancellationToken;
 
 #[cfg(test)]
@@ -25,6 +24,7 @@ use crate::{
     DownloadVerificationActivity,
     InstallOperation,
     PeerEvent,
+    PeerEventSender,
     StreamInstallSettings,
     apply_launch_settings_to_verified_tree,
     content_quarantine::ContentQuarantine,
@@ -545,11 +545,7 @@ async fn settle_download_completion(
 }
 
 /// Handles the `InstallGame` command.
-pub async fn handle_install_game_command(
-    ctx: &Ctx,
-    tx_notify_ui: &PeerEventSender,
-    id: String,
-) {
+pub async fn handle_install_game_command(ctx: &Ctx, tx_notify_ui: &PeerEventSender, id: String) {
     let games_folder = ctx.game_dir.read().await.clone();
     spawn_install_operation(ctx, tx_notify_ui, OperationTarget::new(games_folder, id));
 }
@@ -796,11 +792,7 @@ async fn select_stream_install_sources_or_finish(
 }
 
 /// Handles the `UninstallGame` command.
-pub async fn handle_uninstall_game_command(
-    ctx: &Ctx,
-    tx_notify_ui: &PeerEventSender,
-    id: String,
-) {
+pub async fn handle_uninstall_game_command(ctx: &Ctx, tx_notify_ui: &PeerEventSender, id: String) {
     let games_folder = ctx.game_dir.read().await.clone();
     let target = OperationTarget::new(games_folder, id);
     let ctx = ctx.clone();
@@ -1344,11 +1336,7 @@ fn promote_streamed_install(
     Ok(())
 }
 
-fn spawn_install_operation(
-    ctx: &Ctx,
-    tx_notify_ui: &PeerEventSender,
-    target: OperationTarget,
-) {
+fn spawn_install_operation(ctx: &Ctx, tx_notify_ui: &PeerEventSender, target: OperationTarget) {
     let ctx = ctx.clone();
     let tx_notify_ui = tx_notify_ui.clone();
     ctx.task_tracker.clone().spawn(async move {
@@ -1356,11 +1344,7 @@ fn spawn_install_operation(
     });
 }
 
-async fn run_install_operation(
-    ctx: &Ctx,
-    tx_notify_ui: &PeerEventSender,
-    target: OperationTarget,
-) {
+async fn run_install_operation(ctx: &Ctx, tx_notify_ui: &PeerEventSender, target: OperationTarget) {
     let id = target.game_id().to_owned();
     let Some(prepared) = prepare_install_operation(ctx, tx_notify_ui, &target).await else {
         return;
@@ -2342,10 +2326,7 @@ async fn handle_set_game_dir_command_with_drain_timeout(
 }
 
 /// Loads the configured local library and announces the result.
-pub async fn load_local_library(
-    ctx: &Ctx,
-    tx_notify_ui: &PeerEventSender,
-) -> eyre::Result<()> {
+pub async fn load_local_library(ctx: &Ctx, tx_notify_ui: &PeerEventSender) -> eyre::Result<()> {
     load_local_library_with_policy(ctx, tx_notify_ui, LocalLibraryEventPolicy::OnChange).await
 }
 

crates/lanspread-peer/src/lib.rs

@@ -59,6 +59,7 @@ use std::{
 
 pub use config::CHUNK_SIZE;
 pub use error::PeerError;
+pub use events::{PeerEventReceiver, PeerEventSender, peer_event_channel};
 pub use identity::{
     LoadedPeerIdentity,
     PeerIdentity,
@@ -85,11 +86,7 @@ pub use peer_db::{
 };
 pub use scoped_blocking::scoped_blocking;
 pub use scoped_process::{ScopedProcess, ScopedProcessOutput};
-use tokio::sync::{
-    RwLock,
-    mpsc::UnboundedReceiver,
-    oneshot,
-};
+use tokio::sync::{RwLock, mpsc::UnboundedReceiver, oneshot};
 use tokio_util::{sync::CancellationToken, task::TaskTracker};
 pub use transfer_status::{
     DownloadAttemptId,
@@ -134,7 +131,6 @@ pub use crate::{
         StreamInstallProvider,
     },
 };
-pub use events::{PeerEventReceiver, PeerEventSender, peer_event_channel};
 
 // =============================================================================
 // Public API types

crates/lanspread-peer/src/network_generation.rs

@@ -808,11 +808,7 @@ fn send_state(tx_notify_ui: &PeerEventSender, state: LocalNetworkSharingState) {
     );
 }
 
-fn report_failure(
-    tx_notify_ui: &PeerEventSender,
-    component: PeerRuntimeComponent,
-    error: String,
-) {
+fn report_failure(tx_notify_ui: &PeerEventSender, component: PeerRuntimeComponent, error: String) {
     log::error!("{component:?} failed: {error}");
     events::send(tx_notify_ui, PeerEvent::RuntimeFailed { component, error });
 }

crates/lanspread-peer/src/services/liveness.rs

@@ -3,6 +3,7 @@
 use std::{sync::Arc, time::Duration};
 
 use futures::{StreamExt as _, stream};
+
 use crate::{
     PeerEventSender,
     config::{PEER_PING_IDLE_SECS, PEER_PING_INTERVAL_SECS, peer_stale_timeout},

crates/lanspread-peer/src/services/remote_state.rs

@@ -55,10 +55,7 @@ pub(crate) struct RemoteStateCtx {
 
 impl RemoteStateCtx {
     #[must_use]
-    pub(crate) fn from_network(
-        ctx: &NetworkServiceCtx,
-        tx_notify_ui: &PeerEventSender,
-    ) -> Self {
+    pub(crate) fn from_network(ctx: &NetworkServiceCtx, tx_notify_ui: &PeerEventSender) -> Self {
         Self {
             local_peer_id: ctx.peer_id,
             peer_game_db: ctx.peer_game_db.clone(),
@@ -371,10 +368,7 @@ fn enqueue_final_views(
 /// Clears every remote projection after one network generation has fully
 /// drained, then queues the authoritative replacement views while the
 /// database-to-Call-to-Play lock order is still held.
-pub(crate) async fn clear_remote_state_and_publish(
-    ctx: &Ctx,
-    tx_notify_ui: &PeerEventSender,
-) {
+pub(crate) async fn clear_remote_state_and_publish(ctx: &Ctx, tx_notify_ui: &PeerEventSender) {
     let mut db = ctx.peer_game_db.write().await;
     let mut call_to_play = ctx.call_to_play.write().await;
     let retired = db.clear_remote_peers();

crates/lanspread-peer/src/startup.rs

@@ -23,9 +23,9 @@ use tokio_util::{sync::CancellationToken, task::TaskTracker};
 
 use crate::{
     PeerCommand,
+    PeerEventSender,
     PeerId,
     PeerIdentityDurability,
-    PeerEventSender,
     PeerRuntimeComponent,
     StreamInstallProvider,
     Unpacker,

crates/lanspread-peer/src/transfer_status.rs

@@ -10,10 +10,9 @@ use std::{
 };
 
 use serde::{Deserialize, Deserializer, Serialize, Serializer, de};
-use crate::PeerEventSender;
 use tokio_util::sync::CancellationToken;
 
-use crate::{DownloadProgress, PeerEvent, events};
+use crate::{DownloadProgress, PeerEvent, PeerEventSender, events};
 
 static NEXT_DOWNLOAD_ATTEMPT_ID: AtomicU64 = AtomicU64::new(1);
 
@@ -457,10 +456,7 @@ impl ActiveDownloadSignal {
 mod tests {
     use super::*;
 
-    fn attempt() -> (
-        DownloadAttemptStatus,
-        crate::PeerEventReceiver,
-    ) {
+    fn attempt() -> (DownloadAttemptStatus, crate::PeerEventReceiver) {
         let (tx, rx) = crate::peer_event_channel();
         (
             DownloadAttemptStatus::new(