A commit message helper supporting story numbers and Co-authored-by

commit

#!/usr/bin/env bash

set -eo pipefail

changed=$(git status --porcelain)
is_github_repo=$(git config --get remote.origin.url; echo $?)

declare -A github_users
github_users=(
    ["rd"]="Rahul De <rahul080327@gmail.com>"
    ["fb"]="Foo Bar <foo.bar@baz.qux>"
)

function validate-author() {
    if [ "${1}" == "" ]; then
        echo -e "Author $1 not recognized: ${!github_users[@]}" >&2
        exit 1
    fi
}

function co-authors() {
    local name=$(git config --get user.name)
    local email=$(git config --get user.email)
    local co_author

    while IFS='/' read -ra accounts; do for acc in ${accounts[@]}; do
        co_author="${github_users[${acc}]}"
        validate-author "${co_author}"
        if [ "${co_author,,}" != "${name,,} <${email,,}>" ]; then
            echo "Co-authored-by: ${co_author}"
        fi
    done; done <<< "$@"
}

if [ "$changed" == "" ]; then
    echo "Nothing to commit"
    exit 1
fi

echo -e "\e[1m Git Status: \e[0m"
git status -s
echo ""

touch /tmp/commit_pair
touch /tmp/commit_story

story=$(< /tmp/commit_story)
read -p "story: " -i "${story}" -e story
echo "${story}" > /tmp/commit_story

pair=$(< /tmp/commit_pair)
read -p "co-authors (shortcuts separated by /): " -i "${pair}" -e pair
co_authors="$(co-authors "$pair")"
echo "${pair}" > /tmp/commit_pair

read -p "message: " -e message

git commit --cleanup=verbatim -m "[${story}] ${message}"$'\n'$'\n'$'\n'"${co_authors}"

Usage:

• Have this in your PATH as a file called commit for example
• Make it executable
• Run commit from within a git repo directory