[post] Allow the append (not overwrite) CHANGELOG generation mode

[vovacodes]

Say I have an old CHANGELOG in the package and I would like to preserve its content whilst being able to use lerna-semantic-release post to append new entries there.

We could check conventional-changelog-cli for inspiration, they have this functionality implemented

[vovacodes]

seems like we only need to allow to override this parameter through a CLI flag

[jpnelson]

I was thinking about this – one nice thing about regenerating every time is that we can fix up changelog generation as we go – if the format of the log is incorrect, we can change the formatter and the changelogs will get updated.

Maybe a nice alternative would be to let git notes show in the changelog? That way we'd have a way of appending to changelogs after the fact, and still associate the notes with specific commits. You'd get to keep the benefits of regenerating every time.

Maybe this idea should make it back to conventional-changelog-cli for us to consume, somehow

[vovacodes]

Maybe a nice alternative would be to let git notes show in the changelog?

Could you please explain in more detail what git notes you mean and how it would work?

one nice thing about regenerating every time is that we can fix up changelog generation as we go

I'm totally for it to be a default behavior, but I would simply allow adjusting the defaults with a flag, so that for those who don't want to add any "extra" changelog processing there will be an option to keep the old entries intact.

[vovacodes]

I have started progressing on this