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build: Fix minifier options for webpack builds #78717

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Merged
merged 1 commit into from
Apr 30, 2025
Merged

build: Fix minifier options for webpack builds #78717

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5 changes: 4 additions & 1 deletion packages/next/src/build/webpack-config.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -1207,7 +1207,10 @@ export default async function getBaseWebpackConfig(
// @ts-ignore No typings yet
const { MinifyPlugin } =
require('./webpack/plugins/minify-webpack-plugin/src/index.js') as typeof import('./webpack/plugins/minify-webpack-plugin/src')
new MinifyPlugin({ noMangling }).apply(compiler)
new MinifyPlugin({
noMangling,
disableCharFreq: !isClient,
}).apply(compiler)
},
// Minify CSS
(compiler: webpack.Compiler) => {
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10 changes: 8 additions & 2 deletions packages/next/src/build/webpack/plugins/minify-webpack-plugin/src/index.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -32,7 +32,9 @@ function buildError(error: any, file: string) {
const debugMinify = process.env.NEXT_DEBUG_MINIFY

export class MinifyPlugin {
constructor(private options: { noMangling?: boolean }) {}
constructor(
private options: { noMangling?: boolean; disableCharFreq?: boolean }
) {}

async optimize(
compiler: any,
Expand All @@ -47,7 +49,11 @@ export class MinifyPlugin {
RawSource: typeof sources.RawSource
}
) {
const mangle = !this.options.noMangling
const mangle = this.options.noMangling
? false
: {
disableCharFreq: !!this.options.disableCharFreq,
}
const compilationSpan =
getCompilationSpan(compilation)! || getCompilationSpan(compiler)

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