list files or dirs traced or ignored by git, just like `ls` does, auto-colored

git-list.sh

# list files or dirs traced or ignored by git
# gitls [<path> [<path> ...]] [--ignore] [<other-args-of-ls>]
#   --ignore         : ls files ignored by git, and dirs contain such files
#   without --ignore : ls files traced by git, and dirs contain such files
#   without <path>   : ls files or dirs under current path
# auto colored

gitls()
{
    local git_args=''
    local ls_args=''
    local dir_paths
    declare -a dir_paths
    while test $# -gt 0
    do
        case "$1" in
            --ignore)  git_args='-o -i --exclude-standard' ;;
            -*)        ls_args="$ls_args $1"  ;;
            --*)       ls_args="$ls_args $1" ;;
            *)         dir_paths=("${dir_paths[@]}" "$1");;
        esac
        shift
    done

    local gls_command="git ls-files $git_args | awk -F / '{print \$1}' | uniq | sed 's/\ /\\\ /g' | xargs ls -dh --color=auto $ls_args"

    if [ ${#dir_paths} -eq 0 ]; then
        eval "$gls_command"
    else
        local here_path="$(pwd | sed 's/\ /\\\ /g')"
        for dir_path in "${dir_paths[@]}"; do
            echo
            echo -E "$dir_path:" | sed 's/\ /\\\ /g'
            cd $dir_path
            eval "$gls_command"
            cd $here_path
        done
    fi
}

alias gl='gitls'                # list files or dirs traced by git, only show name
alias gli='gitls --ignored'     # list files or dirs ingnored by git, only show name
alias gll='gitls -l'            # list files or dirs traced by git, only full information, one file/dir per line
alias glli='gitls -l --ignored' # list files or dirs ignored by git, only full information, one file/dir per line