Consider caching isbn definitions on load

[mvolz]

The ISBN definitions seem to be updated fairly frequently as far as I can tell. Would it be possible to make a request on loading the library for the new definitions? The hard-coded ones could be used as back-up if the library is offline / the website is down. If that seems like something that we want to do I could make a PR.

[maxlath]

maybe as a postinstall script or something of this kind?

[mvolz]

I was thinking more of making the request as part of an init sort of thing. So the request is made once, when the application is started.

[maxlath]

I wouldn't like it to be the default behaviour as that would:

• make the startup much slower
• add a dependency on isbn-international.org status
• add a non-dev dependency on a xml parsing lib

I tried to improve the documentation on how one could update the groups without having to rely on those being updated by the module maintainers, could that be enough?

Edit: I reverted the change in the documentation as that's actually bad advice: as re-running npm install in the root project will revert the group update

[maxlath]

I added a CI action to auto-update groups data every 1st of the month: today was the first auto-update+patch version publication triggered that way.

This means that as long as this action is up and there is no breaking change in the isbn-international.org API, we [the maintainers] could well totally forget about this repo and it would still be periodically updated.

[natlibfi-jonollil]

There has been change Dec 18, 2020. Is auto update working? (Top margin in pdf says so https://www.isbn-international.org/range_file_generation)

[maxlath]

The action was disabled for some reason I don't get, but now it's reactivated, and I manually ran (8afee59) and published (v1.1.7) an update