Enforce fragment name structure

[dorschw]

We're using Jira, and want all fragments to be named according to the issue numbering format (e.g. ABCD-12345.feature.md).
Is there any way to configure towncrier to enforce the fragment file name somehow? (e.g. supplying a regex)

If there isn't one, I may be able to contribute it.

[adiroiban]

Thanks for the report

which towncrier command do you want to enforce the format create, build, or check ?

There is only support to check that .feature is one of the configured fragment types.

Happy to review and approve a PR that adds this functionality.

As long as it has documentation, tests and it does't break the existing tests, it should be good to merge.

[dorschw]

Didn't think of that, so I assume all of them, unless you have another idea? Thanks

[adiroiban]

I think that towncrier check is the high priority part ... and maybe we can keep it simple and add validation only there.

We do some validation in towncrier build and that validation is reused in towncrier check

You can give it a go and see what option is best for you.

---

I can image that in the future we can go crazy and allow towncrier to call a project specific python method that will check that the ticket actually exists and is not already closed :) ... but that is for another time.

---

Most of my errors with ticket ID is messing up the digits ... for example using 5634 instead of 5643 ... but I have no idea how you can validate this, as in most cases both issues were opened.
I only observed that I messed the tiket ID, when merging the PR and ending up with the wrong issue automatically closed.

---

We can keep it simple and add a regex.