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Warn during multi-compilation scenarios #2245

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merged 1 commit into from
Oct 4, 2019

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jeffposnick
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R: @philipwalton

This addresses some of #1790 by adding in a webpack compilation warning message letting developers know that they shouldn't rely on a consistent set of assets in the precache manifest when the same plugin instance is used across multiple compilations (such as in --watch scenarios).

@@ -80,6 +81,17 @@ class GenerateSW {
* @private
*/
async handleEmit(compilation) {
// See https://github.com/GoogleChrome/workbox/issues/1790
if (this.alreadyCalled) {
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I was thinking about putting this logic in a reusable module, but it a) relies on instance properties of the plugin and b) relies on the compilation object being available. It ended up being cleaner just duplicating this logic in both plugin classes, but if there are strong feelings, I could refactor.

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PR-Bot Size Plugin

Changed File Sizes

File Before After Change GZipped
packages/workbox-webpack-plugin/build/generate-sw.js 4.22 KB 4.72 KB +12% 1.76 KB ☠️
packages/workbox-webpack-plugin/build/inject-manifest.js 6.94 KB 7.43 KB +7% 2.48 KB

New Files

No new files have been added.

All File Sizes

View Table
File Before After Change GZipped
packages/workbox-background-sync/build/workbox-background-sync.prod.js 3.87 KB 3.87 KB 0% 1.60 KB
packages/workbox-broadcast-update/build/workbox-broadcast-update.prod.js 1.27 KB 1.27 KB 0% 700 B
packages/workbox-build/build/_types.js 41 B 41 B 0% 61 B
packages/workbox-build/build/generate-sw.js 2.75 KB 2.75 KB 0% 1.23 KB
packages/workbox-build/build/get-manifest.js 1.60 KB 1.60 KB 0% 779 B
packages/workbox-build/build/index.js 613 B 613 B 0% 344 B
packages/workbox-build/build/inject-manifest.js 4.93 KB 4.93 KB 0% 1.90 KB
packages/workbox-cacheable-response/build/workbox-cacheable-response.prod.js 610 B 610 B 0% 356 B
packages/workbox-cli/build/app.js 4.16 KB 4.16 KB 0% 1.64 KB
packages/workbox-cli/build/bin.js 940 B 940 B 0% 502 B
packages/workbox-core/build/workbox-core.prod.js 6.80 KB 6.80 KB 0% 2.82 KB
packages/workbox-expiration/build/workbox-expiration.prod.js 2.95 KB 2.95 KB 0% 1.27 KB
packages/workbox-google-analytics/build/workbox-offline-ga.prod.js 1.97 KB 1.97 KB 0% 915 B
packages/workbox-navigation-preload/build/workbox-navigation-preload.prod.js 659 B 659 B 0% 323 B
packages/workbox-precaching/build/workbox-precaching.prod.js 4.95 KB 4.95 KB 0% 1.92 KB
packages/workbox-range-requests/build/workbox-range-requests.prod.js 1.64 KB 1.64 KB 0% 808 B
packages/workbox-routing/build/workbox-routing.prod.js 3.09 KB 3.09 KB 0% 1.35 KB
packages/workbox-strategies/build/workbox-strategies.prod.js 4.10 KB 4.10 KB 0% 1.13 KB
packages/workbox-streams/build/workbox-streams.prod.js 1.44 KB 1.44 KB 0% 698 B
packages/workbox-sw/build/workbox-sw.js 1.34 KB 1.34 KB 0% 746 B
packages/workbox-webpack-plugin/build/generate-sw.js 4.22 KB 4.72 KB +12% 1.76 KB ☠️
packages/workbox-webpack-plugin/build/index.js 349 B 349 B 0% 255 B
packages/workbox-webpack-plugin/build/inject-manifest.js 6.94 KB 7.43 KB +7% 2.48 KB
packages/workbox-window/build/workbox-window.dev.umd.js 41.51 KB 41.51 KB 0% 9.20 KB
packages/workbox-window/build/workbox-window.prod.umd.js 4.52 KB 4.52 KB 0% 1.85 KB

Workbox Aggregate Size Plugin

3.51KB gzip'ed (23% of limit)
7.93KB uncompressed

@jeffposnick jeffposnick merged commit 1a6ec45 into master Oct 4, 2019
@jeffposnick jeffposnick deleted the warn-on-multi-compilation branch October 4, 2019 18:03
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3 participants