git—save everyting to master with message shortcut

For saving everything to master with a message from whatever branch I work in (and delete it after), I like to use this shortcut.

saveas() # save to master as
{
    if [ -z "$1" ]; then                           # Is parameter #1 zero length?
        echo "you need to specify parameters..."
        return 0
    fi

    current_branch=$(git symbolic-ref --short HEAD)

    # save everything with message from parameters 
    git add .
    git commit -m "$1"

    # if we are on master, return
    if [ "$current_branch" = "master" ]; then
        return 0
    fi

    # if not on master, merge current branch and delete it
    git checkout master
    git merge $current_branch
    git branch -d $current_branch
}