fix(bin): fallback for webpack config path

Author: steven-pribilinskiy

src/bin/download-federated-types.ts

@@ -13,7 +13,7 @@ import {
 } from '../helpers';
 
 import {
-  assertRunningFromRoot, getOptionsFromWebpackConfig,
+  assertRunningFromRoot, getOptionsFromWebpackConfig, getWebpackConfigPathFromArgs,
 } from './helpers';
 
 assertRunningFromRoot();
@@ -23,7 +23,7 @@ type Argv = {
 };
 
 const argv = parseArgs<Argv>(process.argv.slice(2));
-const webpackConfigPath = argv['webpack-config'] || 'webpack.config.js';
+const webpackConfigPath = getWebpackConfigPathFromArgs(argv['webpack-config']);
 
 const { mfPluginOptions, mfTypesPluginOptions } = getOptionsFromWebpackConfig(webpackConfigPath);
 

src/bin/helpers/getWebpackConfigPathFromArgs.ts

@@ -0,0 +1,16 @@
+import { existsSync } from 'fs';
+
+export function getWebpackConfigPathFromArgs(webpackConfigPath?: string): string {
+  if (!webpackConfigPath) {
+    if (existsSync('webpack.config.ts')) {
+      webpackConfigPath = 'webpack.config.ts';
+    } else if (existsSync('webpack.config.js')) {
+      webpackConfigPath = 'webpack.config.js';
+    } else {
+      console.error(`Could not find webpack.config.ts file at ${process.cwd()}`);
+      process.exit(1);
+    }
+  }
+
+  return webpackConfigPath;
+}

src/bin/helpers/index.ts

@@ -1,3 +1,4 @@
 export * from './assertRunningFromRoot';
 export * from './getFederationConfig';
 export * from './getOptionsFromWebpackConfig';
+export * from './getWebpackConfigPathFromArgs';

src/bin/make-federated-types.ts

@@ -14,7 +14,7 @@ import { setLogger } from '../helpers';
 import { FederationConfig } from '../models';
 
 import {
-  assertRunningFromRoot, getFederationConfig, getOptionsFromWebpackConfig,
+  assertRunningFromRoot, getFederationConfig, getOptionsFromWebpackConfig, getWebpackConfigPathFromArgs,
 } from './helpers';
 
 assertRunningFromRoot();
@@ -36,12 +36,15 @@ const argv = parseArgs<Argv>(process.argv.slice(2), {
   } as Partial<Argv>,
 });
 
-const webpackConfigPath = argv['webpack-config'] || 'webpack.config.js';
-const federationConfig = webpackConfigPath
-  ? getOptionsFromWebpackConfig(webpackConfigPath).mfPluginOptions as unknown as FederationConfig
-  : getFederationConfig(argv['federation-config']);
-const compileFiles = Object.values(federationConfig.exposes);
+let federationConfig: FederationConfig;
+if (argv['federation-config']) {
+  federationConfig = getFederationConfig(argv['federation-config']);
+} else {
+  const webpackConfigPath = getWebpackConfigPathFromArgs(argv['webpack-config']);
+  federationConfig = getOptionsFromWebpackConfig(webpackConfigPath).mfPluginOptions as FederationConfig;
+}
 
+const compileFiles = Object.values(federationConfig.exposes);
 const outDir = argv['output-types-folder'] || path.join(DEFAULT_DIR_DIST, DEFAULT_DIR_EMITTED_TYPES);
 const outFile = path.join(outDir, 'index.d.ts');
 const dirGlobalTypes = argv['global-types'] || DEFAULT_DIR_GLOBAL_TYPES;