ng serve should watch i18n messages files

[cexbrayat]

🚀 Feature request

Command (mark with an x)

- [ ] new
- [ ] build
- [x] serve
- [ ] test
- [ ] e2e
- [ ] generate
- [ ] add
- [ ] update
- [ ] lint
- [ ] xi18n
- [ ] run
- [ ] config
- [ ] help
- [ ] version
- [ ] doc

Description

When using the new i18n support with CLI v9 (rc.4 at the time of writing), it is possible to run:

ng serve --configuration=fr

with fr:

"i18n": {
  "locales": {
    "fr": "src/locale/messages.fr.xlf"
  }
},
"fr": {
  "localize": ["fr"]
}

This works great, but does not pick up translation changes in messages.fr.xlf, requiring a stop and restart of ng serve.

Describe the solution you'd like

It would be nice to have ng serve watch the files defined in the locales configuration.

Describe alternatives you've considered

It is possible to stop and restart the server to have the up-to-date translations.

[fetis]

it's still an issue with v10 :(

I would also re-qualify it from feature to bug/regression because it worked fine in v8

[montogeek]

I have to restart my dev server when changing anything in the .xlf files to see the change reflected in the server. Is this issue related?

[dev054]

@clydin sorry to bother you, but I just saw that you have a PR that address this issue... so allow me to kindly ask: is there a plan to merge this before v13 comes out? If not, does anyone know if there's any workaround available? Currently is too tedious to restart server to see the changes in the file.

Thanks.