1 files changed, 79 insertions, 0 deletions
diff --git a/date-fns/config/webpack.js b/date-fns/config/webpack.js
new file mode 100644
index 0000000..327b587
--- /dev/null
+++ b/date-fns/config/webpack.js
@@ -0,0 +1,79 @@
+const path = require('path')
+const webpack = require('webpack')
+
+const isProduction = process.env.NODE_ENV === 'production'
+
+const config = {
+  mode: isProduction ? 'production' : 'development',
+  devtool: isProduction ? 'source-map' : 'inline-source-map',
+  entry: getEntryConfig(),
+  output: getOutputConfig(),
+  resolve: {
+    extensions: ['.ts', '.js']
+  },
+  module: {
+    rules: [
+      { test: /\.(js|ts)$/, exclude: /node_modules/, use: 'babel-loader' }
+    ].concat(
+      process.env.COVERAGE_REPORT
+        ? [
+            {
+              test: /\.(js|ts)$/,
+              use: {
+                loader: 'istanbul-instrumenter-loader',
+                options: { esModules: true }
+              },
+              enforce: 'post',
+              exclude: /node_modules|test.js|src\/locale$/
+            }
+          ]
+        : []
+    )
+  },
+  plugins: getPlugins()
+}
+
+module.exports = config
+
+function getEntryConfig() {
+  if (process.env.BUILD_TESTS) {
+    return {
+      tests: './testWithoutLocales.js'
+    }
+  } else if (process.env.NODE_ENV === 'test') {
+    return undefined
+  } else {
+    return {
+      date_fns: './tmp/umd/index.js'
+    }
+  }
+}
+
+function getOutputConfig() {
+  if (process.env.BUILD_TESTS) {
+    return {
+      path: path.join(process.cwd(), 'tmp'),
+      filename: '[name].js'
+    }
+  } else if (process.env.NODE_ENV === 'test') {
+    return undefined
+  } else {
+    return {
+      path: path.join(process.cwd(), 'dist'),
+      filename: '[name].js',
+      library: 'dateFns',
+      libraryTarget: 'umd'
+    }
+  }
+}
+
+function getPlugins() {
+  return process.env.NODE_ENV === 'test'
+    ? [
+        new webpack.ContextReplacementPlugin(
+          /power-assert-formatter[\\/]lib/,
+          new RegExp('^\\./.*\\.js$')
+        )
+      ]
+    : undefined
+}