Git commit-msg hook to validate for jira issue or the word merge

commit-msg.sh

#!/usr/bin/env bash

# set this to your active development branch
develop_branch="develop"
current_branch="$(git rev-parse --abbrev-ref HEAD)"

# only check commit messages on main development branch
[ "$current_branch" != "$develop_branch" ] && exit 0

# regex to validate in commit msg
commit_regex='(wap-[0-9]+|merge)'
error_msg="Aborting commit. Your commit message is missing either a JIRA Issue ('WAP-1111') or 'Merge'"

if ! grep -iqE "$commit_regex" "$1"; then
    echo "$error_msg" >&2
    exit 1
fi

Instructions.md

Instructions

• copy the file commit-msg to .git/hooks/commit-msg
• make sure your delete the sample file .git/hooks/commit-msg.sample
• Make commit msg executable. chmod +x .git/hooks/commit-msg
• Edit commit-msg to better fit your development branch, commit regex and error message
• Profit $$

Shell example

curl https://gist.githubusercontent.com/pgilad/5d7e4db725a906bd7aa7/raw/feba0ca462f87a382cfbc3eddfcc529ceb9b7350/commit-msg.sh > .git/hooks/commit-msg

rm .git/hooks/commit-msg.sample

chmod +x .git/hooks/commit-msg

vim .git/hooks/commit-msg

echo "Profit $$"

configuration free git-commit-msg-linter

Found this old gem - much appreciated! I expanded it and shared with the corporation:

#!/usr/bin/env bash

commit_regex = '^((build|chore|ci|docs|feat|fix|perf|refactor|revert|style|test|Publish)(\([a-zA-Z0-9 /_,.-]+?\))?: .{1,59}\w (\([A-Z]+-[0-9]+\)|\(#[0-9]+\)|\[skip ci\]|\[ci\])|Merge branch .+|(fixup|squash)! .+|WIP: .+)$'

error_msg = '
.git/hooks/commit-msg: Aborting commit, try again with a valid message. The regexp checks for:

* a conventional commit message subject (to be parsed into changelogs, see https://www.conventionalcommits.org/en/v1.0.0 ):
   - a change type, either of "build", "chore", "ci", "docs", "feat", "fix", "perf", "refactor", "revert", "style", "test" or "Publish"
   - optionally, in parenthesis, subsystem(s) affected by the change (comma delimited list)
   - a colon, space (": ") and a brief subject (60 characters maximum) not ending with a period
   - a space and in parenthesis, an issue id " (FOO-123)" or " (#123)"... or the tags "[skip ci]" or "[ci]" (do we use these?)
* ... or, a Git autosquash line, i.e. "fixup! My previous commit" or "squash! Another previous commit" (see https://thoughtbot.com/blog/autosquashing-git-commits )
* ... or, a merge commit "Merge branch x..."
* ... or, a work-in-progress tag "WIP: "
* optionally (not validated), two line breaks and a commit message body
This script is written by CJ Sveningsson (carl-johan.sveningsson@scania.com), inspired by https://gist.github.com/pgilad/5d7e4db725a906bd7aa7 (Gilad Peleg)'

if ! grep -iqE "${commit_regex}" "$1"; then
    echo "${error_msg}" >&2
    exit 1
fi

I wrote a very simple syntax checker for N amount of characters and numbers as the Jira key (e.g. ABCDE-12345):

#!/bin/bash
[[ $(cat $1) =~ [A-Z]+-[0-9]+.* ]] || {
    echo >&2 "ERROR: Commit message requires JIRA key. Example: \"ABC-123: Test Commit\""
    exit 1
}

Hope it helps for anyone looking for a super basic checker.

Hi,

I wrote a regex for commit message convention 1.0.0 which is based off the Angular Convention.

commit_regex='^(feat|fix|build|chore|docs|style|refactor|perf|test)(\(.+\))?!?: (.+[^.\r\n])([\r\n]+(.+[\r\n]+)+)?$'

This is a simple, lightweight commit message convention enforcing a format like this:

<type>[optional scope]: <description>

[optional body]

[optional footer(s)]

This should work out of box but you can modify it the way you want. Hope it's helpful!

Hi Remirno, you should add the '?' question mark before group 2 because the scope is not a positional argument in the conventional commit,
so it should be like this;
^(feat|fix|build|chore|docs|style|refactor|perf|test)?(\(.+\))?!?: (.+[^.\r\n])([\r\n]+(.+[\r\n]+)+)?$

You'd need to write a server-side commit hook for that

This might help: https://git-scm.com/book/uz/v2/Customizing-Git-An-Example-Git-Enforced-Policy

@thekiwicoder0 I know this is an old issue. can you provide an example reference or more details??

I made like this, you can check it
https://gist.github.com/Umut-Deniz1/12408a7c6931f62f0c901b50d6e5b965

Used this as a starting point for https://gist.github.com/jorimvanhove/2251e829955f43b0e0df92c33271ead6