On Thu, Jun 30, 2022 at 07:34:54PM +0200, Christian Couder wrote: > > Hello, all: > > > > What's the best approach to non-interactively rewrite specific commit > > messages? In this particular case, I am trying to automatically retrieve code > > review trailers sent to the mailing list and put them into corresponding > > commits. > > > > For example, I have a set of commits: > > > > abcabc: This commit does foo > > bcdbcd: This commit does bar > > cdecde: This commit does baz > > > > They were all sent to the mailing list and a maintainer sent a "Reviewed-by" > > to the second commit. In a usual interactive rebase session this would be: > > > > pick abcabc > > reword bcdbcd > > pick cdecde > > > > When the edit screen comes up for the bcdbcd commit, the author would manually > > stick the new trailer into the commit message. However, I can automate all > > that away with b4 -- just need a sane strategy for non-interactively rewriting > > entire commit messages at arbitrary points in the recent history. > > > > Any pointers? > > Have you tried `git interpret-trailers`? I'm aware of interpret-trailers, but unless I'm missing something large, it's just a way of analyzing standalone text files to retrieve or insert trailers. What I'm looking for is a way to amend arbitrary commit messages within recent git history. -K