Bundle as cjs to fix yarn create (#97)

Author: cknitt

.gitignore

@@ -3,4 +3,4 @@
 **/*.res.js
 **/*.res.mjs
 .bsb.lock
-out/create-rescript-app.mjs
+out/create-rescript-app.cjs

package-lock.json

@@ -2,7 +2,7 @@
   "name": "create-rescript-app",
   "version": "1.10.0-beta.1",
   "description": "Quickly create new ReScript apps from project templates.",
-  "main": "out/create-rescript-app.mjs",
+  "main": "out/create-rescript-app.cjs",
   "scripts": {
     "start": "node src/Main.res.mjs",
     "prepack": "rescript && rollup -c",
@@ -30,10 +30,10 @@
   ],
   "files": [
     "templates",
-    "out/create-rescript-app.mjs"
+    "out/create-rescript-app.cjs"
   ],
   "bin": {
-    "create-rescript-app": "out/create-rescript-app.mjs"
+    "create-rescript-app": "out/create-rescript-app.cjs"
   },
   "devDependencies": {
     "@clack/prompts": "^0.11.0",

package.json

@@ -5,8 +5,8 @@ import terser from "@rollup/plugin-terser";
 export default {
   input: `src/Main.res.mjs`,
   output: {
-    file: `out/create-rescript-app.mjs`,
-    format: "es",
+    file: `out/create-rescript-app.cjs`,
+    format: "cjs",
     banner: "#!/usr/bin/env node",
   },
   plugins: [terser(), nodeResolve({ preferBuiltins: true }), commonjs()],

rollup.config.mjs

@@ -18,7 +18,7 @@ let handleError = async (~outro, perform) =>
     Process.exitWithCode(1)
   }
 
-let run = async () => {
+let main = async () => {
   let version = await getVersion()
   P.intro(C.dim(`create-rescript-app ${version}`))
 
@@ -66,6 +66,10 @@ https://rescript-lang.org`,
   }
 }
 
-try await run() catch {
-| P.Canceled => P.cancel("Canceled.")
-}
+// Do not use top-level await, otherwise we can't package as .cjs.
+let run = async () =>
+  try await main() catch {
+  | P.Canceled => P.cancel("Canceled.")
+  }
+
+run()->Promise.ignore