コミット時にブランチの命名規則のチェックをするやつ

pre-commit

#!/bin/sh
#
# An hook script to check branch name convention.
# Called by "git commit" with no arguments.  The hook should
# exit with non-zero status if you are not following
# branch name convention.

pattern='^((bug|feature|hotfix)/\d+-|junk/)[\w\d\-]+'

git rev-parse --abbrev-ref HEAD|perl -nle "print if m{$pattern} or exit 1" > /dev/null 2>&1
if [ $? -ne 0 ]; then
	cat <<EOF
ERROR: invalid branch name

Branch name convention is $pattern

Examples:
	bugs		bug/123-fix-loading (number is issue number)
	feature		feature/234-add-login (number is issue number)
	hotfix		hotfix/345-fix-mem-leak (number is issue number)
	junk		junk/testing-new-lib

Skip pre-commit hooks with --no-verify (not recommended).
EOF
	exit 1
fi

/path/to/project/hooks/pre-commit にでも設置してバージョン管理に含めておいて、チェックアウト時に git config core.hooksPath hooks でも実行すると比較的楽な気がする