fix: separate CJS vs ESM type defs

build.ts

@@ -0,0 +1,34 @@
+import { execSync } from "node:child_process";
+import { join, resolve } from "node:path";
+import { copyFileSync } from "node:fs";
+
+execSync("npm run build", {
+	stdio: "inherit",
+});
+
+let root = resolve(".");
+let input = resolve("src");
+
+copyFileSync(
+	join(input, "async.d.mts"),
+	join(root, "index.d.mts"),
+);
+
+copyFileSync(
+	join(input, "async.d.ts"),
+	join(root, "index.d.ts"),
+);
+
+console.log("+ async dts files");
+
+copyFileSync(
+	join(input, "sync.d.mts"),
+	join(root, "sync/index.d.mts"),
+);
+
+copyFileSync(
+	join(input, "sync.d.ts"),
+	join(root, "sync/index.d.ts"),
+);
+
+console.log("+ sync dts files");

index.d.mts

@@ -0,0 +1,11 @@
+type Promisable<T> = T | Promise<T>;
+
+export type Callback = (
+	directory: string,
+	files: string[],
+) => Promisable<string | false | void>;
+
+export default function (
+	directory: string,
+	callback: Callback,
+): Promise<string | void>;

package.json

@@ -15,22 +15,33 @@
   "exports": {
     ".": [
       {
-        "types": "./index.d.ts",
-        "import": "./dist/index.mjs",
-        "require": "./dist/index.js"
+        "import": {
+          "types": "./index.d.mts",
+          "default": "./dist/index.mjs"
+        },
+        "require": {
+          "types": "./index.d.ts",
+          "default": "./dist/index.js"
+        }
       },
       "./dist/index.js"
     ],
     "./sync": [
       {
-        "types": "./sync/index.d.ts",
-        "import": "./sync/index.mjs",
-        "require": "./sync/index.js"
+        "import": {
+          "types": "./sync/index.d.mts",
+          "default": "./sync/index.mjs"
+        },
+        "require": {
+          "types": "./sync/index.d.ts",
+          "default": "./sync/index.js"
+        }
       },
       "./sync/index.js"
     ]
   },
   "files": [
+    "*.d.mts",
     "*.d.ts",
     "dist",
     "sync"

src/async.d.mts

@@ -0,0 +1,11 @@
+type Promisable<T> = T | Promise<T>;
+
+export type Callback = (
+	directory: string,
+	files: string[],
+) => Promisable<string | false | void>;
+
+export default function (
+	directory: string,
+	callback: Callback,
+): Promise<string | void>;

src/async.d.ts

@@ -1,3 +1,15 @@
 type Promisable<T> = T | Promise<T>;
-export type Callback = (directory: string, files: string[]) => Promisable<string | false | void>;
-export default function (directory: string, callback: Callback): Promise<string | void>;
+
+declare namespace escalade {
+	export type Callback = (
+		directory: string,
+		files: string[],
+	) => Promisable<string | false | void>;
+}
+
+declare function escalade(
+	directory: string,
+	callback: escalade.Callback,
+): Promise<string | void>;
+
+export = escalade;

src/sync.d.mts

@@ -0,0 +1,9 @@
+export type Callback = (
+	directory: string,
+	files: string[],
+) => string | false | void;
+
+export default function (
+	directory: string,
+	callback: Callback,
+): string | void;

src/sync.d.ts

@@ -1,2 +1,13 @@
-export type Callback = (directory: string, files: string[]) => string | false | void;
-export default function (directory: string, callback: Callback): string | void;
+declare namespace escalade {
+	export type Callback = (
+		directory: string,
+		files: string[],
+	) => string | false | void;
+}
+
+declare function escalade(
+	directory: string,
+	callback: escalade.Callback,
+): string | void;
+
+export = escalade;