Commit validator

This script validates the message structure of the commit command.

• The line: msg="$(cat $1 | grep -v # | head -n 1)" takes the message passed though the argument -m or by the interactive editor (vim, nano, etc) and procces the first not comment line (excludes the The lines with the # symbol.

• In the line: if ! [[ $msg =~ ^(feat|fix|docs?|style|refactor|pref|chore|revert?)(.+):{1}\ ?.{3,}$ ]]; then Validates the message structure.

Instructions

Write the following code into a file named commit-msg and save it into: /repo/path/.git/hooks/

#!/bin/sh

RED='\033[0;31m'
YELLOW='\e[33m'
GREEN='\e[32m'
CYAN='\e[36m'
NC='\033[0m'
BOLD='\e[1m'
NORMAL='\e[0m'

msg="$(cat $1 | grep -v \# | head -n 1)"
if ! [[ $msg =~ ^(feat|fix|docs?|style|refactor|pref|chore|revert?)\(.+\):{1}\ ?.{3,}$ ]]; then
	echo -e "${RED}${BOLD}Invalid commit${NORMAL}${NC}"
	echo -e "\t${YELLOW}Follow the structure: \"type(module): description, at lease 3 words\""
	echo -e "\tAvailable types:"
	echo -e "\t\tfeat|fix|docs?|style|refactor|pref|chore|revert?${NC}"
	echo -e "\t${CYAN}${BOLD}Example:${NORMAL} "
	echo -e "\t\t${CYAN}revert(usersController): remove t3 validation${NC}"
	exit 1
fi

Examples

Navigate to your repo path

Invalid commit message

$ git commit -m "Invalid message"
Invalid commit
Follow the structure: "type(module): description, at lease 3 words"
Available types:
	feat|fix|docs?|style|refactor|pref|chore|revert?
Example:
	revert(usersController): remove t3 validation

Valid commit message

git commit -m "chore(BashCommitRule): write a valid message"
[master ebdf4ef] chore(BashCommitRule): write a valid message
 1 file changed, 1 insertion(+)