This change allows to add fixup commits by running the command
`git commit --fixup=<sha>` without complaining about the commit
message not being in conventional commit format. (Running the
git command will result in the commit title of the referenced
commit with `fixup!` prepended. It will later be squashed with
the referenced commit in a git rebase.)
If no scope is found in the branch name, then don't include the
parentheses around the scope, as this breaks automatic merge messages
and the parentheses are unnecessary.
This change allows a different project to override the definitions
by providing a local `commit-msg-defs` file while still sharing the
`commit-msg` hook. Other projects might have a different set of
scopes.
Adds support for conventional commit style validation of all commit
messages and makes configuration against all Keyman repos
straightforward with the configure-repo.sh script.
