feat(single-instance): add MacOs unix domain socket impl (#1035)

* feat(single-instance): add macos implementation

* chore(single-instance): test MacOs by adding CLI to example

* feat(single-instance): simplify macOS implementation

* chore(single-instance): address remarks

plugins/single-instance/examples/vanilla/src-tauri/Cargo.toml

@@ -12,6 +12,7 @@ serde_json = { workspace = true }
 serde = { workspace = true }
 tauri = { workspace = true }
 tauri-plugin-single-instance = { path = "../../../" }
+tauri-plugin-cli = { path = "../../../../cli" }
 
 [build-dependencies]
 tauri-build = { workspace = true }

plugins/single-instance/examples/vanilla/src-tauri/src/main.rs

@@ -9,6 +9,7 @@
 
 fn main() {
   tauri::Builder::default()
+    .plugin(tauri_plugin_cli::init())
     .plugin(tauri_plugin_single_instance::init(|app, argv, cwd| {
       println!("{}, {argv:?}, {cwd}", app.package_info().name);
     }))

plugins/single-instance/examples/vanilla/src-tauri/tauri.conf.json

@@ -29,5 +29,17 @@
       "icons/icon.icns",
       "icons/icon.ico"
     ]
+  },
+  "plugins": {
+    "cli": {
+      "description": "Testing single-instance on MacOS",
+      "args": [
+        {
+          "name": "somearg",
+          "index": 1,
+          "takesValue": true
+        }
+      ]
+    }
   }
 }