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chore: watch for messages changes in dev generate script #15950

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Merged
merged 5 commits into from
May 19, 2025

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paoloricciuti
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This always bothers me when adding a new warning/error because you have to rerun the dev script to regenerate the messages and if you forget it will also fail lint (since the script it also re-organise them).

This adds a watch mode to the script so that you can just run the dev script and be done with it (i had to do a bit of promise gymnastics because messages it's changing when the script run).

Dunno if we want to merge this but it seems useful.

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pnpm add https://pkg.pr.new/svelte@15950

@paoloricciuti
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@Rich-Harris it needs to be async because it's changing the files it's watching...without that guard it goes into an infinite loop

@Rich-Harris
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ah lol whoops! i was being careless and thought it was about preventing multiple runs immediately after each other. I still think we can keep it sync though, and bail out inside the watch callback instead

@paoloricciuti
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ah lol whoops! i was being careless and thought it was about preventing multiple runs immediately after each other. I still think we can keep it sync though, and bail out inside the watch callback instead

I tried but the watch callback is not sync so it's invoked a tad later.

@Rich-Harris
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It's not sync, but you can reset the guard when it re-runs instead of after calling run() and it seems to work well. Still involves a bit of song and dance but it's more localised hence easier to follow

@paoloricciuti
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Yeah i guess it works too...good change!

@Rich-Harris Rich-Harris merged commit b7b393d into main May 19, 2025
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@Rich-Harris Rich-Harris deleted the watch-regenerate branch May 19, 2025 16:26
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2 participants