Checks out the latest hotfix (.x) branch based on semver

git-checkout-latest-x.sh

#!/usr/bin/env bash

# Checks out the latest hotfix branch based on semver tagging

# Output function
output () {
    echo -e "\033[36m\033[1m* $1 \033[0m"
    return 0;
}

# Get up to date with origin
git fetch origin &> /dev/null

# Get relevent branches
current=$(git branch | grep \* | cut -d ' ' -f2)
locals=($(git branch --format "%(refname:short)" --sort=v:refname | grep -o "^\\d\{1,2\}\.\\d\{1,2\}\.x\$"))
locals_str="${locals[@]}"
latest=$(git branch -la --format "%(refname:short)" --sort=v:refname | grep -o "\\d\{1,2\}\.\\d\{1,2\}\.x\$" | tail -1)

# If already on the latest branch, pull to make sure it is updated
if [ "$current" = "$latest" ]
then
    output "Already on the latest release branch. Pulling from origin..."
    git pull
    exit 0
fi

# Check out the latest branch
output "Checking out the latest release branch..."
git checkout $latest

# Clean up any legacy hotfix branches
if [ "$latest" != "$locals_str" ]
then
    output "Cleaning up stale branches..."
    old_branches=${locals_str/$latest/}
    git branch -D $old_branches
fi

# Pull latest
output "Pulling from origin..."
git pull