1 files changed, 104 insertions, 0 deletions
diff --git a/history/rollup.config.js b/history/rollup.config.js
new file mode 100644
index 0000000..575cbdc
--- /dev/null
+++ b/history/rollup.config.js
@@ -0,0 +1,104 @@
+import babel from 'rollup-plugin-babel';
+import nodeResolve from 'rollup-plugin-node-resolve';
+import commonjs from 'rollup-plugin-commonjs';
+import replace from 'rollup-plugin-replace';
+import { sizeSnapshot } from 'rollup-plugin-size-snapshot';
+import { uglify } from 'rollup-plugin-uglify';
+
+import pkg from './package.json';
+
+const input = './modules/index.js';
+const globalName = 'History';
+
+function external(id) {
+  return !id.startsWith('.') && !id.startsWith('/');
+}
+
+const cjs = [
+  {
+    input,
+    output: { file: `cjs/${pkg.name}.js`, format: 'cjs' },
+    external,
+    plugins: [
+      babel({ exclude: /node_modules/ }),
+      replace({ 'process.env.NODE_ENV': JSON.stringify('development') })
+    ]
+  },
+  {
+    input,
+    output: { file: `cjs/${pkg.name}.min.js`, format: 'cjs' },
+    external,
+    plugins: [
+      babel({ exclude: /node_modules/ }),
+      replace({ 'process.env.NODE_ENV': JSON.stringify('production') }),
+      uglify()
+    ]
+  }
+];
+
+const esm = [
+  {
+    input,
+    output: { file: `esm/${pkg.name}.js`, format: 'esm' },
+    external,
+    plugins: [
+      babel({
+        exclude: /node_modules/,
+        runtimeHelpers: true,
+        plugins: [['@babel/transform-runtime', { useESModules: true }]]
+      }),
+      sizeSnapshot()
+    ]
+  }
+];
+
+const umd = [
+  {
+    input,
+    output: { file: `umd/${pkg.name}.js`, format: 'umd', name: globalName },
+    plugins: [
+      babel({
+        exclude: /node_modules/,
+        runtimeHelpers: true,
+        plugins: [['@babel/transform-runtime', { useESModules: true }]]
+      }),
+      nodeResolve(),
+      commonjs({ include: /node_modules/ }),
+      replace({ 'process.env.NODE_ENV': JSON.stringify('development') }),
+      sizeSnapshot()
+    ]
+  },
+  {
+    input,
+    output: { file: `umd/${pkg.name}.min.js`, format: 'umd', name: globalName },
+    plugins: [
+      babel({
+        exclude: /node_modules/,
+        runtimeHelpers: true,
+        plugins: [['@babel/transform-runtime', { useESModules: true }]]
+      }),
+      nodeResolve(),
+      commonjs({ include: /node_modules/ }),
+      replace({ 'process.env.NODE_ENV': JSON.stringify('production') }),
+      sizeSnapshot(),
+      uglify()
+    ]
+  }
+];
+
+let config;
+switch (process.env.BUILD_ENV) {
+  case 'cjs':
+    config = cjs;
+    break;
+  case 'esm':
+    config = esm;
+    break;
+  case 'umd':
+    config = umd;
+    break;
+  default:
+    config = cjs.concat(esm).concat(umd);
+}
+
+export default config;