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Don't use webpack multi entry unnecessarily #8834

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Apr 15, 2020
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Don't use webpack multi entry unnecessarily #8834

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6 changes: 3 additions & 3 deletions packages/react-scripts/config/webpack.config.js
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Original file line number Diff line number Diff line change
Expand Up @@ -157,7 +157,7 @@ module.exports = function(webpackEnv) {
: isEnvDevelopment && 'cheap-module-source-map',
// These are the "entry points" to our application.
// This means they will be the "root" imports that are included in JS bundle.
entry: [
entry: isEnvDevelopment && !shouldUseReactRefresh ? [
// Include an alternative client for WebpackDevServer. A client's job is to
// connect to WebpackDevServer by a socket and get notified about changes.
// When you save a file, the client will either apply hot updates (in case
Expand All @@ -172,13 +172,13 @@ module.exports = function(webpackEnv) {
//
// When using the experimental react-refresh integration,
// the webpack plugin takes care of injecting the dev client for us.
isEnvDevelopment && !shouldUseReactRefresh && webpackDevClientEntry,
webpackDevClientEntry,
// Finally, this is your app's code:
paths.appIndexJs,
// We include the app code last so that if there is a runtime error during
// initialization, it doesn't blow up the WebpackDevServer client, and
// changing JS code would still trigger a refresh.
].filter(Boolean),
] : paths.appIndexJs,
output: {
// The build folder.
path: isEnvProduction ? paths.appBuild : undefined,
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