chore: tweak babel config (#11918)

jestjs · Oct 1, 2021 · a5ee117 · a5ee117
1 parent c3b0946
commit a5ee117
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Showing 2 changed files with 3 additions and 10 deletions.
diff --git a/babel.config.js b/babel.config.js
@@ -46,8 +46,8 @@ module.exports = {
       '@babel/preset-env',
       {
         bugfixes: true,
-        // a runtime error is preferable, and we need a real `import`
-        exclude: ['@babel/plugin-proposal-dynamic-import'],
+        // we manually include the CJS plugin above, so let's make preset-env do less work
+        modules: false,
         shippedProposals: true,
         targets: {node: supportedNodeVersion},
       },

diff --git a/scripts/build.js b/scripts/build.js
@@ -112,14 +112,7 @@ function buildFile(file, silent) {
           Array.isArray(plugin) &&
           plugin[0] === '@babel/plugin-transform-modules-commonjs'
         ) {
-          return [
-            plugin[0],
-            Object.assign({}, plugin[1], {
-              lazy: string =>
-                // we want to lazyload all non-local modules plus `importEsm` - the latter to avoid syntax errors. Set to just `true` when we drop support for node 8
-                !string.startsWith('./') || string === './importEsm',
-            }),
-          ];
+          return [plugin[0], Object.assign({}, plugin[1], {lazy: true})];
         }
 
         return plugin;