Poper makes sure that your git commit messages are well-formed. It's partly inspired by this article written by tpope. Rules specified there form the basis of Poper rules. But Poper doesn't stop there. It also doesn't like generic commit messages like 'oops, fix tests'. Poper was created to be used by Pronto, but will work perfectly well in whatever scenario you'll come up for it!
Install Poper like any other gem and then run it from your terminal, specifying a commit:
gem install poper
cd /repo/which/commits/you/want/to/check
poper run HEAD~3Every commit between current HEAD and specified commit will be checked.