Git commit-msg hook to validate message format.

commit-msg.sh

#!/usr/bin/env bash
set -euo pipefail

# ====================================================================================================
# The script below allows to check automatically a commit message before saving it.
# In order to use it, you have to copy this code in .git/hooks/commit-msg inside your project.
# Don't forget to add proper permissions if you create a new file (chmod +x). Bash 3+ is required.
# ====================================================================================================

COMMIT_MSG=$(cat $1)

MODULES=`find app/code/local/MyMagento -depth 1 -type d -exec basename {} \; | sort | paste -sd "|" -`
EXTRA="Design"
REGEX="(MyTicket-[[:digit:]]+|N\/A):[[:space:]]\[(${MODULES}|${EXTRA})\][[:space:]].+"

if [[ ("${COMMIT_MSG}" =~ ${REGEX}) || ("${COMMIT_MSG}" =~ Merge.+branch.+into.+) ]]; then
    echo -e "\033[0;32mYour commit message has been successfully validated.\033[0m"
    CODE=0
else
    echo -e "\033[0;31mYour commit message is invalid, please check the regular expression below.\033[0m"
    echo -e "\033[0;34m${REGEX}\033[0m"
    CODE=1
fi

exit ${CODE}