relay-example: Get transpile workspaces programatically

src/example-relay/next.config.js

@@ -4,21 +4,13 @@ const path = require('path');
 const withTranspileModules = require('next-transpile-modules');
 const withCustomBabelConfigFile = require('next-plugin-custom-babel-config');
 
+const getTranspileWorkspaces = require('./scripts/getTranspileWorkspaces'); // @x-shipit-disable
+
+const transpileWorkspaces = getTranspileWorkspaces(); // @x-shipit-disable
+// @x-shipit-enable: const transpileWorkspaces = [];
+
 module.exports = (withCustomBabelConfigFile(
-  withTranspileModules([
-    '@adeira/css-colors',
-    '@adeira/fetch',
-    '@adeira/graphql-bc-checker',
-    '@adeira/graphql-global-id',
-    '@adeira/graphql-relay',
-    '@adeira/js',
-    '@adeira/monorepo-utils',
-    '@adeira/murmur-hash',
-    '@adeira/relay',
-    '@adeira/relay-runtime',
-    '@adeira/relay-utils',
-    '@adeira/sx',
-  ])({
+  withTranspileModules(transpileWorkspaces)({
     images: {
       domains: ['images.kiwi.com'],
     },

src/example-relay/scripts/getTranspileWorkspaces.js

@@ -0,0 +1,28 @@
+// @flow
+
+const { spawnSync } = require('child_process');
+
+/**
+ * This should probably have been a part of @adeira/monorepo-utils,
+ * but it is difficult to make it run in next.config.js because of our setup.
+ * Maybe when we have migrated to bazel, we can move this to monorepo-utils
+ */
+function getTranspileWorkspaces() /* : $ReadOnlyArray<string> */ {
+  const workspaces = JSON.parse(
+    JSON.parse(spawnSync('yarn', ['workspaces', '--json', 'info']).stdout.toString()).data,
+  );
+
+  const transpileWorkspaces = new Set();
+
+  const getWorkspaces = (workspace = '@adeira/example-relay') => {
+    for (const dependency of workspaces[workspace].workspaceDependencies) {
+      transpileWorkspaces.add(dependency);
+      getWorkspaces(dependency);
+    }
+  };
+
+  getWorkspaces();
+  return Array.from(transpileWorkspaces);
+}
+
+module.exports = getTranspileWorkspaces;

src/monorepo-shipit/config/__tests__/example-relay.test.js

@@ -26,4 +26,5 @@ testExportedPaths(path.join(__dirname, '..', 'example-relay.js'), [
   ['src/example-relay/WORKSPACE.bazel', undefined], // correctly deleted
   ['src/example-relay/WORKSPACE', undefined], // correctly deleted
   ['package.json', undefined], // correctly deleted
+  ['src/example-relay/scripts/getTranspileWorkspaces.js', undefined], // correctly deleted
 ]);

src/monorepo-shipit/config/example-relay.js

@@ -18,6 +18,6 @@ module.exports = ({
     ]);
   },
   getStrippedFiles() {
-    return new Set([/__github__/, /^\.babelrc\.js$/]);
+    return new Set([/__github__/, /^\.babelrc\.js$/, /scripts\/getTranspileWorkspaces.js/]);
   },
 }: ConfigType);