Prefix every commit with the JIRA ticket, given that the ticket can be found in the current branch's name

commit-msg

#!/bin/sh

COMMIT_FILE=$1
COMMIT_MSG=$(cat $1)
CURRENT_BRANCH=$(git rev-parse --abbrev-ref HEAD)
JIRA_ID=$(echo "$CURRENT_BRANCH" | grep -Eo "[A-Z0-9]{1,10}-?[A-Z0-9]+-\d+")

if [ ! -z "$JIRA_ID" ]; then
    echo "[$JIRA_ID] $COMMIT_MSG" > $COMMIT_FILE
    echo "JIRA ID '$JIRA_ID', matched in current branch name, prepended to commit message. (Use --no-verify to skip)"
fi