Bash script to auto create release_x_x_x GIT branch with x.x.x is the version in package.json

create_release_gitbranch.sh

#!/bin/bash
PACKAGE_VERSION=$(cat package.json | grep version | head -1 | awk -F: '{ print $2 }' | sed 's/[\",]//g' | tr -d '[[:space:]]')

NEW_PACKAGE_VERSION="${PACKAGE_VERSION//./_}"
BRANCH_NAME="release_${NEW_PACKAGE_VERSION}"

if [ `git branch -ra | egrep "remotes/origin/${BRANCH_NAME}$"` ]
then
   echo "Branch name $BRANCH_NAME already exists!"
   git checkout $BRANCH_NAME
   git pull
   git merge master
   git add -A
   git commit -m "[ci skip] Updated $BRANCH_NAME"
   git push
else
   echo "Branch name $BRANCH_NAME doesn't exists!"
   git checkout master
   git checkout -b $BRANCH_NAME
   git push -u origin $BRANCH_NAME
fi