feat(core): implement macOS bundle launching logic

espanso/src/cli/launcher/mod.rs

@@ -31,7 +31,6 @@ pub fn new() -> CliModule {
   #[allow(clippy::needless_update)]
   CliModule {
     requires_paths: true,
-    requires_config: true,
     enable_logs: false,
     subcommand: "launcher".to_string(),
     entry: launcher_main,
@@ -60,7 +59,7 @@ fn launcher_main(args: CliModuleArgs) -> i32 {
   let is_legacy_version_running_handler =
     Box::new(move || util::is_legacy_version_running(&runtime_dir_clone));
 
-  let is_migrate_page_enabled = args.is_legacy_config;
+  let is_migrate_page_enabled = espanso_config::is_legacy_config(&paths.config);
   let paths_clone = paths.clone();
   let backup_and_migrate_handler =
     Box::new(move || match util::migrate_configuration(&paths_clone) {

espanso/src/main.rs

@@ -132,14 +132,8 @@ fn main() {
             .takes_value(false)
             .help("Prompt for permissions if the operation requires elevated privileges."),
         )
-        .subcommand(
-          SubCommand::with_name("register")
-            .about("Add 'espanso' command to PATH"),
-        )
-        .subcommand(
-          SubCommand::with_name("unregister")
-            .about("Remove 'espanso' command from PATH"),
-        )
+        .subcommand(SubCommand::with_name("register").about("Add 'espanso' command to PATH"))
+        .subcommand(SubCommand::with_name("unregister").about("Remove 'espanso' command from PATH"))
         .about("Add or remove the 'espanso' command from the PATH (macOS and Windows only)"),
     )
     // .subcommand(SubCommand::with_name("cmd")
@@ -326,10 +320,20 @@ fn main() {
     _ => LevelFilter::Debug,
   };
 
-  let handler = CLI_HANDLERS
+  let mut handler = CLI_HANDLERS
     .iter()
     .find(|cli| matches.subcommand_matches(&cli.subcommand).is_some());
 
+  // When started from the macOS App Bundle, override the default
+  // handler with "launcher", otherwise the GUI could not be started.
+  if let Some(context) = std::env::var_os("MAC_LAUNCH_CONTEXT") {
+    if context == "bundle" {
+      handler = CLI_HANDLERS
+        .iter()
+        .find(|cli| cli.subcommand == "launcher");
+    }
+  }
+
   if let Some(handler) = handler {
     let log_proxy = FileProxy::new();
     if handler.enable_logs {

espanso/src/res/macos/Info.plist

@@ -2,6 +2,11 @@
 <!DOCTYPE plist SYSTEM "file://localhost/System/Library/DTDs/PropertyList.dtd">
 <plist version="0.9">
 <dict>
+	<key>LSEnvironment</key>
+	<dict>
+    <key>MAC_LAUNCH_CONTEXT</key>
+    <string>bundle</string>
+	</dict>
 	<key>NSPrincipalClass</key>
 	<string>NSApplication</string>
 	<key>CFBundleInfoDictionaryVersion</key>