better resource management

Author: neverRare

build/dev.ts

@@ -12,8 +12,13 @@ const BUILD_OPTIONS: BuildOptions = {
 };
 async function watchMain(): Promise<BuildContext<BuildOptions>> {
   const buildContext = await context(BUILD_OPTIONS);
-  await buildContext.watch();
-  await buildContext.serve({ servedir: "./dist/" });
+  try {
+    await buildContext.watch();
+    await buildContext.serve({ servedir: "./dist/" });
+  } catch (error) {
+    await buildContext.dispose();
+    throw error;
+  }
   return buildContext;
 }
 async function watchDictionary(): Promise<number> {

dictionary/watch.ts

@@ -13,8 +13,10 @@ async function tryBuild(): Promise<void> {
   }
 }
 if (import.meta.main) {
-  const watcher = Deno.watchFs("./dictionary/dictionary");
+  await using stack = new AsyncDisposableStack();
+  using watcher = Deno.watchFs("./dictionary/dictionary");
   let task = Promise.resolve();
+  stack.defer(async () => await task);
   const buildDebounced = debounce(() => {
     task = task.then(tryBuild);
   }, 200);