Extract Jira code from branch name

prepare-commit-msg

#!/bin/bash

# Copy this file into .git/hooks/prepare-commit-msg file
# Usage: Your branch must follow the name convention: `CODE-123-Lorem-ipsum-telnet`
# This hook will try to extract the `CODE-123` and add it into your commit message.
# For example, `git commit -m "fix something"` will create a commit message content:
# `CODE-123 fix something`

COMMIT_MSG_FILE=$1

# Ignore if branch name is: master/main/develop/dev
if [ -z "$NAMES_TO_SKIP" ]; then
  NAMES_TO_SKIP=(master main develop dev)
fi

# Get code in branch name with format DEV-123
CODE_NAME=$(git symbolic-ref --short HEAD | ggrep -oP "(?<=feature\/|bugfix\/)([a-zA-Z]+)-(\d+)" | awk '{print $1}')

BRANCH_EXCLUDED=$(printf "%s\n" "${NAMES_TO_SKIP[@]}" | grep -c "^$CODE_NAME$")

# If commit message already have it, do not duplicate
BRANCH_IN_COMMIT=$(grep -c "$CODE_NAME" $1)

if [ -n "$CODE_NAME" ] && ! [[ $BRANCH_EXCLUDED -eq 1 ]] && ! [[ $BRANCH_IN_COMMIT -ge 1 ]]; then 
  # Add code name to commit message
  sed -i.bak -e "1s/^/$CODE_NAME /" "$COMMIT_MSG_FILE"
fi