amuzil-commit-msg-git-hook.sh

msg_file="$1"

r_gitmoji_text="(:[a-z0-9_+-]+:)"
# r_gitmoji_unicode="[\u{1f300}-\u{1f5ff}\u{1f900}-\u{1f9ff}\u{1f600}-\u{1f64f}\u{1f680}-\u{1f6ff}\u{2600}-\u{26ff}\u{2700}-\u{27bf}\u{1f1e6}-\u{1f1ff}\u{1f191}-\u{1f251}\u{1f004}\u{1f0cf}\u{1f170}-\u{1f171}\u{1f17e}-\u{1f17f}\u{1f18e}\u{3030}\u{2b50}\u{2b55}\u{2934}-\u{2935}\u{2b05}-\u{2b07}\u{2b1b}-\u{2b1c}\u{3297}\u{3299}\u{303d}\u{00a9}\u{00ae}\u{2122}\u{23f3}\u{24c2}\u{23e9}-\u{23ef}\u{25b6}\u{23f8}-\u{23fa}\u{200d}]"
# unfortunately, the unicode regex is not supported, so we just match any non-whitespace
r_gitmoji_unicode="\S+"
r_gitmoji="(${r_gitmoji_text}|${r_gitmoji_unicode})"

r_subject="([[:graph:]][[:print:]]{0,70}[[:graph:]])"

r_issue="( \(#\d+\))?"

pattern="^${r_gitmoji} ${r_subject}${r_issue}$"

if grep --extended-regexp --quiet "${pattern}" "${msg_file}"; then
	exit 0
fi

if test -t 1 && test -n "$(tput colors)"; then
	RED='\033[0;31m'
	GREEN='\033[0;32m'
	BLUE='\033[0;34m'
	PURPLE='\033[0;35m'
	NC='\033[0m'
fi

echo -e "${RED}ERROR: Invalid commit message${NC}:
${PURPLE}$( cat "${msg_file}" )${NC}
"

echo -e "
Your commit message does ${RED}not${NC} follow our ${PURPLE}commit naming guidelines${NC}: ${BLUE}https://github.com/amuzil/.github/blob/main/.github/contributing.md#commits${NC}
Commit messages should start with a ${GREEN}gitmoji${NC} followed by a space, followed by the commit message.
If the commit is related to an issue, the issue number should be added in parentheses at the end of the commit message.

Example commit message:
	${GREEN}✨ Add new feature (#42)${NC}
"
exit 1