refactor(runtime): use dynamic import for emit module to improve cli …

…performance (#70)

src/cli/bundle.ts

@@ -1,10 +1,4 @@
-import {
-  Command,
-  copy,
-  denoBundle,
-  DenoBundleOptions,
-  ValidationError,
-} from "./deps.ts";
+import { Command, copy, DenoBundleOptions, ValidationError } from "./deps.ts";
 import { error } from "../_utils.ts";
 import { path } from "../runtime/mod.ts";
 import { bootstrapModule } from "./lib/bootstrap.ts";
@@ -90,6 +84,9 @@ async function bundleFile(
     if (options.check) {
       await check(file);
     }
+    const { bundle: denoBundle } = await import(
+      "https://deno.land/x/[email protected]/mod.ts"
+    );
     const { code } = await denoBundle(file, {
       type: "module",
       ...options,

src/cli/deps.ts

@@ -10,7 +10,4 @@ export {
   ValidationError,
 } from "https://deno.land/x/[email protected]/command/_errors.ts";
 export { tokens } from "https://deno.land/x/[email protected]/mod.ts";
-export {
-  bundle as denoBundle,
-  type BundleOptions as DenoBundleOptions,
-} from "https://deno.land/x/[email protected]/mod.ts";
+export { type BundleOptions as DenoBundleOptions } from "https://deno.land/x/[email protected]/mod.ts";