added webpack config

webpack.config.js

@@ -0,0 +1,37 @@
+const path = require('path');
+const webpack = require('webpack');
+
+module.exports = (env) => {
+    const mode = env.mode || 'development';
+    const agent = env.agent || 'mock';
+
+    return {
+        entry: {
+            'setup-gitversion': path.resolve(__dirname, 'src/setup-gitversion.ts'),
+            //'execute-gitversion': path.resolve(__dirname, 'src/execute-gitversion.ts'),
+        },
+        target: 'node',
+        mode: mode,
+        devtool: mode == 'development' ? 'inline-source-map' : false,
+        module: {
+            rules: [{
+                test: /\.tsx?$/,
+                use: 'ts-loader',
+                exclude: /node_modules/,
+            }, ],
+        },
+        resolve: {
+            extensions: ['.tsx', '.ts', '.js', '.json'],
+        },
+        output: {
+            filename: '[name]/bundle.js',
+            path: path.resolve(__dirname, `dist/${agent}`),
+        },
+        plugins: [
+            new webpack.NormalModuleReplacementPlugin(
+                /agent\/mock\/build-agent/,
+                `../agent/${agent}/build-agent`
+            )
+        ]
+    }
+};