feat: output esm build & exports

marko-js · Feb 14, 2022 · 8f990f8 · 8f990f8
1 parent fb5dad7
commit 8f990f8
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Showing 4 changed files with 1,237 additions and 1,177 deletions.
diff --git a/build.ts b/build.ts
@@ -1,7 +1,7 @@
 import fs from "fs";
 import path from "path";
 import glob from "fast-glob";
-import { build } from "esbuild";
+import { build, BuildOptions } from "esbuild";
 
 (async () => {
   const entryPoints = [];
@@ -21,15 +21,42 @@ import { build } from "esbuild";
     }
   }
 
-  await build({
+  const opts: BuildOptions = {
     outdir,
     entryPoints,
-    format: "cjs",
     outbase: srcdir,
     platform: "node",
     target: ["es2019"],
     define: {
       "process.env.NODE_ENV": "'production'",
     },
-  });
+  };
+
+  await Promise.all([
+    build({
+      ...opts,
+      format: "cjs",
+    }),
+    build({
+      ...opts,
+      format: "esm",
+      bundle: true,
+      splitting: true,
+      outExtension: { ".js": ".mjs" },
+      plugins: [
+        {
+          name: "external-modules",
+          setup(build) {
+            build.onResolve(
+              { filter: /^[^./]|^\.[^./]|^\.\.[^/]/ },
+              ({ path }) => ({
+                path,
+                external: true,
+              })
+            );
+          },
+        },
+      ],
+    }),
+  ]);
 })();