Bash script to select a branch and checkout using charmbracelet/gum

branch

#!/bin/sh

if ! [ -d .git ]; then
  echo "This directory does not have a Git repository"
  exit 1
fi

repository=$(git branch | awk '{print $NF}' | sort -r | gum filter --limit=1)

if [ -z "$repository" ]; then
  echo "No branch selected"
  exit 1
else
  git checkout $repository
fi