fix: avoid package.json check on built-in modules (#39418)

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Samuel Attard 2023-08-09 00:32:00 -07:00 committed by GitHub
parent ab08803959
commit d24d8f1f78
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@ -6,19 +6,42 @@ Subject: fix: do not resolve electron entrypoints
This wastes fs cycles and can result in strange behavior if this path actually exists on disk
diff --git a/lib/internal/modules/run_main.js b/lib/internal/modules/run_main.js
index 5a50d5d6afab6e6648f72a1c0efa1df4cd80bcd9..0be45309028b00a6957ee473322a9452a7fa7d67 100644
index 5a50d5d6afab6e6648f72a1c0efa1df4cd80bcd9..ebc9999358ccf16689dc02322eb1aeb86355f39b 100644
--- a/lib/internal/modules/run_main.js
+++ b/lib/internal/modules/run_main.js
@@ -13,6 +13,12 @@ const {
@@ -3,6 +3,7 @@
const {
ObjectCreate,
StringPrototypeEndsWith,
+ StringPrototypeStartsWith,
} = primordials;
const CJSLoader = require('internal/modules/cjs/loader');
const { Module, toRealPath, readPackageScope } = CJSLoader;
@@ -13,6 +14,13 @@ const {
} = require('internal/modules/esm/handle_process_exit');
function resolveMainPath(main) {
+ // For built-in modules used as the main entry point we _never_
+ // want to waste cycles resolving them to file paths on disk
+ // that actually might exist
+ if (typeof main === 'string' && main.startsWith('electron/js2c')) {
+ if (typeof main === 'string' && StringPrototypeStartsWith(main, 'electron/js2c')) {
+ return main;
+ }
+
// Note extension resolution for the main entry point can be deprecated in a
// future major.
// Module._findPath is monkey-patchable here.
@@ -28,6 +36,13 @@ function resolveMainPath(main) {
}
function shouldUseESMLoader(mainPath) {
+ // For built-in modules used as the main entry point we _never_
+ // want to waste cycles resolving them to file paths on disk
+ // that actually might exist
+ if (typeof mainPath === 'string' && StringPrototypeStartsWith(mainPath, 'electron/js2c')) {
+ return false;
+ }
+
/**
* @type {string[]} userLoaders A list of custom loaders registered by the user
* (or an empty list when none have been registered).