How to detect when new text was extracted in watch mode?

[wmertens]

I'm trying to do hot reloading of extracted CSS (so that dev and prod have the exact same CSS), and that's working, but I'm having trouble figuring out when there was a change to the CSS.

I tried attaching to "after-emit", but I can't really see what I should filter on to detect if a css file was rebuilt in the current compilation run.

Any hints? Maybe a special event should be emitted?

[alexander-akait]

@wmertens seems add event is good solution. Can your write PR this for this?

[wmertens]

@evilebottnawi I'd gladly create a PR but I don't know how to know when a text file was changed.

[alexander-akait]

@wmertens in theory we can store hash of extracted files and when compare them with new extracted files, what do your think about this?

[wmertens]

If you are already creating a hash, that would be great; if not, it seems that there could be a more direct way somehow? Like keeping a list of files that were output in this compile?

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On Fri, Aug 18, 2017 at 12:48 PM Evilebot Tnawi ***@***.***> wrote: @wmertens <https://github.com/wmertens> in theory we can store hash of extracted files and when compare them with new extracted files, what do your think about this? — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#577 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AADWllQ7zWR-VRPxaSPfRfUGjxEopQXWks5sZWvlgaJpZM4OfQ_e> .

[alexander-akait]

@wmertens we already have content have https://github.com/webpack-contrib/extract-text-webpack-plugin/blob/master/src/index.js#L209

[alexander-akait]

@wmertens btw can your describe more informatively why it is needs?

[wmertens]

It seems that hash only gets created on-demand, so it would be a shame to create it every time… I tried to describe my use case above. I need to know when a CSS file was emitted, so that I can tell the browser to hot-reload it. Right now I'm hot reloading every time, which is annoying…

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On Fri, Aug 18, 2017 at 1:14 PM Evilebot Tnawi ***@***.***> wrote: @wmertens <https://github.com/wmertens> btw can your describe more informatively why it is needs? — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#577 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AADWlsEI5l7lqpaW_UdDMLTEYdIV1mhjks5sZXIvgaJpZM4OfQ_e> .

[alexander-akait]

@wmertens why don't store hash of files directly in webpack-hot-middleware?

[wmertens]

If I can get the hashes of all files after a compile was done, and know which ones were generated by extract-text-plugin, that would be great. Then I can indeed track hashes and emit on change.

But I don't know how to do that, which events to listen to…

[michael-ciniawsky]

ETWP entered maintenance mode and won't receive any feature updates, please open an issue in mini-css-extract-plugin instead