merged function for easily telling if a Git branch has been merged into the current branch

merged.sh

merged () {
  CURRENT=`git rev-parse --abbrev-ref HEAD`;
  if git merge-base --is-ancestor $1 $CURRENT; then
    echo "\e[32m$1 is merged into $CURRENT"
  else
    echo "\e[31m$1 is NOT merged into $CURRENT"
  fi
}