How to write git commit messages for submodule updates?

Question

I always struggle to write good git commit messages for commits which did nothing except update which commit a submodule is on. What I really want to write is "just read the freaking submodule commit messages!"

Perhaps a slightly nicer solution is, does there exist something which goes to the submodule and concatenates all of the messages since the previous commit it was on in some nice fashion and automatically makes that the message?

Answer 1

Another possibility is to use submodule summary

git config --local status.submoduleSummary true

which will provide information on the commits of the submodules which you than can copy paste into your superprojects commit message.

Also see the answers to this questions for some additional scripts.