feat(cli): expose a function to kill dev child

tooling/cli/node/index.d.ts

@@ -4,4 +4,5 @@
 /* auto-generated by NAPI-RS */
 
 export function run(args: Array<string>, binName: string | undefined | null, callback: (...args: any[]) => any): void
+export function killDevApp(callback: (...args: any[]) => any): void
 export function logError(error: string): void

tooling/cli/node/index.js

@@ -252,7 +252,8 @@ if (!nativeBinding) {
   throw new Error(`Failed to load native binding`)
 }
 
-const { run, logError } = nativeBinding
+const { run, killDevApp, logError } = nativeBinding
 
 module.exports.run = run
+module.exports.killDevApp = killDevApp
 module.exports.logError = logError

tooling/cli/node/main.d.ts

@@ -6,3 +6,4 @@
 /* eslint-disable */
 
 export function run(args: Array<string>, binName: string | undefined | null): Promise<void>
+export function killDevApp(): Promise<void>

tooling/cli/node/main.js

@@ -2,7 +2,7 @@
 // SPDX-License-Identifier: Apache-2.0
 // SPDX-License-Identifier: MIT
 
-const { run, logError } = require('./index')
+const { run, killDevApp, logError } = require('./index')
 
 module.exports.run = (args, binName) => {
   return new Promise((resolve, reject) => {
@@ -16,4 +16,16 @@ module.exports.run = (args, binName) => {
   })
 }
 
+module.exports.killDevApp = () => {
+  return new Promise((resolve, reject) => {
+    killDevApp(res => {
+      if (res instanceof Error) {
+        reject(res)
+      } else {
+        resolve(res)
+      }
+    })
+  })
+}
+
 module.exports.logError = logError

tooling/cli/node/src/lib.rs

@@ -25,6 +25,23 @@ pub fn run(args: Vec<String>, bin_name: Option<String>, callback: JsFunction) ->
   Ok(())
 }
 
+#[napi_derive::napi]
+pub fn kill_dev_app(callback: JsFunction) -> Result<()> {
+  let function: ThreadsafeFunction<bool, ErrorStrategy::CalleeHandled> = callback
+    .create_threadsafe_function(0, |ctx| ctx.env.get_boolean(ctx.value).map(|v| vec![v]))?;
+
+  // we need to run in a separate thread so Node.js (e.g. vue-cli-plugin-tauri) consumers
+  // can do work while `tauri dev` is running.
+  std::thread::spawn(move || match tauri_cli::kill_dev_app() {
+    Ok(_) => function.call(Ok(true), ThreadsafeFunctionCallMode::Blocking),
+    Err(e) => function.call(
+      Err(Error::new(Status::GenericFailure, format!("{:#}", e))),
+      ThreadsafeFunctionCallMode::Blocking,
+    ),
+  });
+  Ok(())
+}
+
 #[napi_derive::napi]
 pub fn log_error(error: String) {
   log::error!("{}", error);