fix(nextjs): Differentiate between webpack 4 and 5 in server builds #3878
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lobsterkatie
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AbhiPrasad
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Aug 6, 2021
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| const isWebpack5 = webpack.version.startsWith('5'); |
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I wonder if we an use the webpack 5 check to simplify the logic on how we add entry points with addFileToExistingEntryPoint (instead of having the various if else conditions)
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It's not a bad idea, but once I sat down to try to do it, I realized that though knowing it's webpack 4 would narrow down the possible formats, knowing it's webpack 5 wouldn't, because it can take all of the webpack 4 formats along with its own new formats. So just because of webpack 5 I think we need all the if/elses. Unless you're seeing something I'm not?
In any case, I'm going to merge this and we can handle that, if we do, in a later PR.
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In order to cut down on the number of unnecessary files which get uploaded by the Sentry webpack plugin during nextjs builds, we're quite specific about which filepaths to scan. The change which introduced that specificity missed the fact that under webpack 4,
.next/server/chunksis not generated. This leads the Sentry webpack plugin to throw an error when it tries to upload it, even though nothing is actually amiss.This PR fixes that, by checking the webpack version before deciding which files to upload with the plugin.