feat: rollup runner for jest

.eslintignore

@@ -2,6 +2,8 @@ CHANGELOG.md
 *.d.ts
 recipes
 
+koa-better-body
+
 *.tsbuildinfo
 .cache
 .*cache

.eslintrc.js

@@ -0,0 +1,2 @@
+module.exports = require('@tunnckocore/eslint-config');
+

.prettierrc.js

@@ -0,0 +1,2 @@
+module.exports = require('@tunnckocore/prettier-config');
+

.rolluprc.js

@@ -0,0 +1,91 @@
+/* eslint-disable import/no-extraneous-dependencies */
+const builtins = require('builtin-modules');
+const nodeResolve = require('rollup-plugin-node-resolve');
+const commonjs = require('rollup-plugin-commonjs');
+
+const fs = require('fs');
+const path = require('path');
+
+const tunnckocoreInterop = `const ___exportsWithoutDefault = Object.keys(exports)
+  .filter((x) => x !== 'default')
+  .reduce((acc, key) => {
+    acc[key] = exports[key];
+    return acc;
+  }, {});
+
+module.exports = Object.assign(exports.default, ___exportsWithoutDefault);
+`;
+
+module.exports = {
+  pkgHook: ({ pkgRoot, output }) => {
+    const {
+      name,
+      version,
+      description,
+      license,
+      author,
+      engines,
+      keywords,
+      repository,
+      dependencies,
+      peerDependencies,
+    } = JSON.parse(fs.readFileSync(path.join(pkgRoot, 'package.json'), 'utf8'));
+
+    const pkg = {
+      name,
+      version,
+      description,
+      license,
+      author,
+      engines,
+      keywords,
+      repository,
+      dependencies,
+      peerDependencies,
+      files: output.map(({ format }) => format),
+      main: output.find(({ format }) => format === 'cjs').file,
+      module: output.find(({ format }) => format === 'esm').file,
+      typings: 'dist/types/index.d.ts',
+    };
+
+    const pkgJson = Object.keys(pkg).reduce((acc, key) => {
+      if (pkg[key]) {
+        acc[key] = pkg[key];
+      }
+      return acc;
+    }, {});
+
+    fs.writeFileSync(
+      path.join(pkgRoot, 'dist', 'package.json'),
+      JSON.stringify(pkgJson, null, 2),
+    );
+  },
+
+  external: builtins,
+  inlineDynamicImports: true,
+  experimentalTopLevelAwait: true,
+  plugins: [
+    nodeResolve({
+      preferBuiltins: true,
+      mainFields: ['module', 'main'],
+    }),
+    commonjs({
+      // extensions,
+    }),
+  ],
+  output: [
+    {
+      exports: 'named',
+      outro: tunnckocoreInterop,
+      esModule: false,
+      preferConst: true,
+      format: 'cjs',
+      // file: 'builds/index.cjs.js',
+    },
+    {
+      preferConst: true,
+      format: 'esm',
+      // file: 'builds/index.esm.js',
+    },
+  ],
+};