make builds work again

.gitignore

@@ -3,3 +3,4 @@
 coverage
 dist
 node_modules
+.build

package.json

@@ -26,7 +26,9 @@
     "dist"
   ],
   "scripts": {
-    "build": "rimraf dist && rollup -c",
+    "clean": "rimraf dist",
+    "prebuild": "npm run clean",
+    "build": "tsc --project tsconfig.build.json && rollup -c",
     "prepublishOnly": "npm run test && npm run build",
     "test": "jest --runInBand"
   },
@@ -60,20 +62,17 @@
     "@types/jest": "^24.0.13",
     "@types/node": "^12.0.4",
     "@types/react": "^16.8.19",
+    "esm": "^3.2.25",
     "fs-extra": "^8.0.1",
     "jest": "^24.8.0",
     "prettier": "^1.17.1",
     "react": "^16.8.6",
     "rollup": "^1.13.1",
-    "rollup-plugin-json": "^4.0.0",
     "ts-jest": "^24.0.2",
-    "ts-node": "^8.2.0",
-    "tslib": "^1.9.3",
     "typescript": "3.5.1"
   },
   "peerDependencies": {
     "rollup": "^1.13.1",
-    "tslib": "*",
     "typescript": "^3.5.1"
   },
   "optionalDependencies": {

rollup.config.js

@@ -1,36 +1,21 @@
-// @ts-ignore
-import json from "rollup-plugin-json";
 import pkg from "./package.json";
 
-require("ts-node").register({ transpileOnly: true });
-const { ts, dts } = require("./src");
+// @ts-ignore
+require = require("esm")(module);
+const { default: dts } = require("./.build");
 
-const external = ["fs", "path", "typescript", "rollup-pluginutils", "rollup", "@babel/code-frame"];
+const external = ["typescript", "rollup", "@babel/code-frame"];
 
 /** @type {Array<import("rollup").RollupWatchOptions>} */
 const config = [
   {
-    input: "./src/index.ts",
-    output: [
-      {
-        exports: "named",
-        file: pkg.main,
-        format: "cjs",
-      },
-      { file: pkg.module, format: "es" },
-    ],
+    input: "./.build/index.js",
+    output: [{ exports: "named", file: pkg.main, format: "cjs" }, { file: pkg.module, format: "es" }],
 
     external,
-    plugins: [
-      json({
-        preferConst: true,
-        indent: "  ",
-      }),
-      ts(),
-    ],
   },
   {
-    input: "./src/index.ts",
+    input: "./.build/index.d.ts",
     output: [{ file: pkg.types, format: "es" }],
 
     external,

tsconfig.build.json

@@ -0,0 +1,21 @@
+{
+  "extends": "./tsconfig",
+  "compilerOptions": {
+    "allowJs": false,
+    "checkJs": false,
+
+    "incremental": true,
+    "tsBuildInfoFile": ".build/tsconfig.build.tsbuildinfo",
+
+    "declaration": true,
+    // "declarationMap": true,
+    // "sourceMap": true,
+    "module": "esnext",
+
+    "noEmit": false,
+
+    "outDir": ".build",
+    "rootDir": "src"
+  },
+  "include": ["src"]
+}

tsconfig.json

@@ -1,14 +1,14 @@
 {
   "compilerOptions": {
-    "noEmitOnError": true,
+    "noEmitOnError": false,
     "diagnostics": true,
     "lib": ["es2018", "esnext"],
 
     "target": "es2017",
 
     "resolveJsonModule": true,
     "moduleResolution": "node",
-    "module": "commonjs",
+    "module": "esnext",
     "esModuleInterop": true,
 
     "jsx": "react",