feat(core): add restart option in context menu and improve exit handling

espanso/src/cli/daemon/mod.rs

@@ -27,7 +27,14 @@ use espanso_ipc::IPCClient;
 use espanso_path::Paths;
 use log::{error, info, warn};
 
-use crate::{exit_code::{DAEMON_ALREADY_RUNNING, DAEMON_GENERAL_ERROR, DAEMON_SUCCESS, WORKER_EXIT_ALL_PROCESSES, WORKER_SUCCESS}, ipc::{create_ipc_client_to_worker, IPCEvent}, lock::{acquire_daemon_lock, acquire_worker_lock}};
+use crate::{
+  exit_code::{
+    DAEMON_ALREADY_RUNNING, DAEMON_GENERAL_ERROR, DAEMON_SUCCESS, WORKER_EXIT_ALL_PROCESSES,
+    WORKER_RESTART, WORKER_SUCCESS,
+  },
+  ipc::{create_ipc_client_to_worker, IPCEvent},
+  lock::{acquire_daemon_lock, acquire_worker_lock},
+};
 
 use super::{CliModule, CliModuleArgs};
 
@@ -74,13 +81,11 @@ fn daemon_main(args: CliModuleArgs) -> i32 {
 
   spawn_worker(&paths, exit_notify.clone());
 
-  ipc::initialize_and_spawn(&paths.runtime, exit_notify)
+  ipc::initialize_and_spawn(&paths.runtime, exit_notify.clone())
     .expect("unable to initialize ipc server for daemon");
 
   // TODO: start file watcher thread
 
-  let mut exit_code: i32 = DAEMON_SUCCESS;
-
   loop {
     select! {
       recv(exit_signal) -> code => {
@@ -89,24 +94,28 @@ fn daemon_main(args: CliModuleArgs) -> i32 {
             match code {
               WORKER_EXIT_ALL_PROCESSES => {
                 info!("worker requested a general exit, quitting the daemon");
+                break;
+              }
+              WORKER_RESTART => {
+                info!("worker requested a restart, spawning a new one...");
+                spawn_worker(&paths, exit_notify.clone());
               }
               _ => {
                 error!("received unexpected exit code from worker {}, exiting", code);
-                exit_code = code
+                return code;
               }
             }
           },
           Err(err) => {
             error!("received error when unwrapping exit_code: {}", err);
-            exit_code = DAEMON_GENERAL_ERROR;
+            return DAEMON_GENERAL_ERROR;
           },
         }
-        break;
       },
     }
   }
 
-  exit_code
+  DAEMON_SUCCESS
 }
 
 fn terminate_worker_if_already_running(runtime_dir: &Path, worker_ipc: impl IPCClient<IPCEvent>) {

espanso/src/cli/worker/engine/mod.rs

@@ -27,7 +27,7 @@ use espanso_ui::{UIRemote, event::UIEvent};
 use log::info;
 use ui::selector::MatchSelectorAdapter;
 
-use crate::cli::worker::engine::{matcher::regex::RegexMatcherAdapterOptions, path::PathProviderAdapter};
+use crate::{cli::worker::engine::{matcher::regex::RegexMatcherAdapterOptions, path::PathProviderAdapter}, engine::event::ExitMode};
 
 use super::ui::icon::IconPaths;
 
@@ -48,7 +48,7 @@ pub fn initialize_and_spawn(
   ui_remote: Box<dyn UIRemote>,
   exit_signal: Receiver<()>,
   ui_event_receiver: Receiver<UIEvent>,
-) -> Result<JoinHandle<bool>> {
+) -> Result<JoinHandle<ExitMode>> {
   let handle = std::thread::Builder::new()
     .name("engine thread".to_string())
     .spawn(move || {
@@ -154,12 +154,12 @@ pub fn initialize_and_spawn(
       );
 
       let mut engine = crate::engine::Engine::new(&funnel, &mut processor, &dispatcher);
-      let exit_all_processes = engine.run();
+      let exit_mode = engine.run();
 
       info!("engine eventloop has terminated, propagating exit event...");
       ui_remote.exit();
 
-      exit_all_processes
+      exit_mode
     })?;
 
   Ok(handle)

espanso/src/cli/worker/engine/source/exit.rs

@@ -19,7 +19,7 @@
 
 use crossbeam::channel::{Receiver, Select, SelectedOperation};
 
-use crate::engine::{event::{Event, EventType}, funnel};
+use crate::engine::{event::{Event, EventType, ExitMode}, funnel};
 
 use super::sequencer::Sequencer;
 
@@ -48,7 +48,7 @@ impl<'a> funnel::Source<'a> for ExitSource<'a> {
       .expect("unable to select data from ExitSource receiver");
     Event {
       source_id: self.sequencer.next_id(),
-      etype: EventType::ExitRequested(false),
+      etype: EventType::ExitRequested(ExitMode::Exit),
     }
   }
 }

espanso/src/cli/worker/mod.rs

@@ -20,7 +20,14 @@
 use crossbeam::channel::unbounded;
 use log::{error, info};
 
-use crate::{exit_code::{WORKER_ALREADY_RUNNING, WORKER_EXIT_ALL_PROCESSES, WORKER_GENERAL_ERROR, WORKER_SUCCESS}, lock::acquire_worker_lock};
+use crate::{
+  engine::event::ExitMode,
+  exit_code::{
+    WORKER_ALREADY_RUNNING, WORKER_EXIT_ALL_PROCESSES, WORKER_GENERAL_ERROR, WORKER_RESTART,
+    WORKER_SUCCESS,
+  },
+  lock::acquire_worker_lock,
+};
 
 use self::ui::util::convert_icon_paths_to_tray_vec;
 
@@ -108,15 +115,20 @@ fn worker_main(args: CliModuleArgs) -> i32 {
 
   info!("waiting for engine exit mode...");
   match engine_handle.join() {
-    Ok(exit_all_processes) => {
-      if exit_all_processes {
-        info!("exiting worker process and daemon...");
-        return WORKER_EXIT_ALL_PROCESSES;
-      } else {
+    Ok(mode) => match mode {
+      ExitMode::Exit => {
         info!("exiting worker process...");
         return WORKER_SUCCESS;
       }
-    }
+      ExitMode::ExitAllProcesses => {
+        info!("exiting worker process and daemon...");
+        return WORKER_EXIT_ALL_PROCESSES;
+      }
+      ExitMode::RestartWorker => {
+        info!("exiting worker (to be restarted)");
+        return WORKER_RESTART;
+      }
+    },
     Err(err) => {
       error!("unable to read engine exit mode: {:?}", err);
       return WORKER_GENERAL_ERROR;

espanso/src/engine/event/mod.rs

@@ -48,8 +48,8 @@ impl Event {
 pub enum EventType {
   NOOP,
   ProcessingError(String),
-  ExitRequested(bool),  // If true, exit also the daemon process and not just the worker
-  Exit(bool),
+  ExitRequested(ExitMode),
+  Exit(ExitMode),
   
   // Inputs
   Keyboard(input::KeyboardEvent),
@@ -82,4 +82,11 @@ pub enum EventType {
 
   // UI
   ShowContextMenu(ui::ShowContextMenuEvent),
+}
+
+#[derive(Debug, Clone)]
+pub enum ExitMode {
+  Exit,
+  ExitAllProcesses,
+  RestartWorker,
 }

espanso/src/engine/mod.rs

@@ -19,7 +19,7 @@
 
 use log::{debug};
 
-use self::{dispatch::Dispatcher, event::{Event, EventType}, funnel::{Funnel, FunnelResult}, process::Processor};
+use self::{dispatch::Dispatcher, event::{Event, EventType, ExitMode}, funnel::{Funnel, FunnelResult}, process::Processor};
 
 pub mod dispatch;
 pub mod event;
@@ -41,15 +41,15 @@ impl <'a> Engine<'a> {
     }
   }
 
-  pub fn run(&mut self) -> bool {
+  pub fn run(&mut self) -> ExitMode {
     loop {
       match self.funnel.receive() {
         FunnelResult::Event(event) => {
           let processed_events = self.processor.process(event);
           for event in processed_events {
-            if let EventType::Exit(exit_all_processes) = &event.etype {
-              debug!("exit event received, exiting engine");
-              return *exit_all_processes;
+            if let EventType::Exit(mode) = &event.etype {
+              debug!("exit event received with mode {:?}, exiting engine", mode);
+              return mode.clone();
             }
 
             self.dispatcher.dispatch(event);
@@ -57,7 +57,7 @@ impl <'a> Engine<'a> {
         } 
         FunnelResult::EndOfStream => {
           debug!("end of stream received");
-          return false;
+          return ExitMode::Exit;
         }
       }
     }

espanso/src/engine/process/middleware/context_menu.rs

@@ -20,10 +20,11 @@
 use super::super::Middleware;
 use crate::engine::event::{
   ui::{MenuItem, ShowContextMenuEvent, SimpleMenuItem},
-  Event, EventType,
+  Event, EventType, ExitMode,
 };
 
 const CONTEXT_ITEM_EXIT: u32 = 0;
+const CONTEXT_ITEM_RELOAD: u32 = 1;
 
 pub struct ContextMenuMiddleware {}
 
@@ -51,18 +52,30 @@ impl Middleware for ContextMenuMiddleware {
           event.source_id,
           EventType::ShowContextMenu(ShowContextMenuEvent {
             // TODO: add actual entries
-            items: vec![MenuItem::Simple(SimpleMenuItem {
-              id: CONTEXT_ITEM_EXIT,
-              label: "Exit espanso".to_string(),
-            })],
+            items: vec![
+              MenuItem::Simple(SimpleMenuItem {
+                id: CONTEXT_ITEM_RELOAD,
+                label: "Reload config".to_string(),
+              }),
+              MenuItem::Separator,
+              MenuItem::Simple(SimpleMenuItem {
+                id: CONTEXT_ITEM_EXIT,
+                label: "Exit espanso".to_string(),
+              }),
+            ],
           }),
         );
       }
       EventType::ContextMenuClicked(context_click_event) => {
         match context_click_event.context_item_id {
-          CONTEXT_ITEM_EXIT => {
-            Event::caused_by(event.source_id, EventType::ExitRequested(true))
-          }
+          CONTEXT_ITEM_EXIT => Event::caused_by(
+            event.source_id,
+            EventType::ExitRequested(ExitMode::ExitAllProcesses),
+          ),
+          CONTEXT_ITEM_RELOAD => Event::caused_by(
+            event.source_id,
+            EventType::ExitRequested(ExitMode::RestartWorker),
+          ),
           custom => {
             // TODO: handle dynamic items
             todo!()

espanso/src/engine/process/middleware/exit.rs

@@ -36,9 +36,9 @@ impl Middleware for ExitMiddleware {
   }
 
   fn next(&self, event: Event, _: &mut dyn FnMut(Event)) -> Event {
-    if let EventType::ExitRequested(exit_all_processes) = &event.etype {
-      debug!("received ExitRequested event with 'exit_all_processes: {}', dispatching exit", exit_all_processes);
-      return Event::caused_by(event.source_id, EventType::Exit(*exit_all_processes));
+    if let EventType::ExitRequested(mode) = &event.etype {
+      debug!("received ExitRequested event with mode: {:?}, dispatching exit", mode);
+      return Event::caused_by(event.source_id, EventType::Exit(mode.clone()));
     }
 
     event

espanso/src/exit_code.rs

@@ -21,6 +21,7 @@ pub const WORKER_SUCCESS: i32 = 0;
 pub const WORKER_ALREADY_RUNNING: i32 = 1;
 pub const WORKER_GENERAL_ERROR: i32 = 2;
 pub const WORKER_EXIT_ALL_PROCESSES: i32 = 101;
+pub const WORKER_RESTART: i32 = 102;
 
 pub const DAEMON_SUCCESS: i32 = 0;
 pub const DAEMON_ALREADY_RUNNING: i32 = 1;