[git-buildpackage] How to generate changelog completely from the beginning of git history

[Kirill Shestakov]

Hi!
I wonder is there a way to generate debian changelog using gbp dch
completely from the beginning of git history? E.g. there is a repo with
tags like 0.1, 0.2, 0.3 etc. And a changelog section for every release
is needed.
If there was an option to select an arbitrary end commit instead of
hardcoded HEAD, it would be possible to do:

#!/bin/bash
prev=$first_commit
for tag in 0.1 0.2 0.3; do
      gpb dch --since $prev --to $tag --new-version $tag
      prev=$tag
done

Doing git checkout $tag in cycle to set new HEAD did not work for me and
I got "gbp:error: Currently not on a branch". Selecting an end commit
with (e.g. "--git-log=0.4") did not work for me either:

$ gbp dch --new-version="0.4" --since 0.3 --git-log="0.4" gbp:error: Dch
failed: debchange: warning:     debian/changelog(l1): version 'VERSION'
is invalid: version number does not start with digit LINE: my-project
(VERSION) UNRELEASED; urgency=medium debchange: error: unknown is not a
valid version

I look forward to your reply.
Best regards,
Kirill