Bash Docker VIM: Quick bash functions to support using a dockerized Vim

dvim.sh

# Append these functions to bashrc or zshenv to get quick acccess to a dockerized neovim
# For example, using curl:
# curl https://gist.githubusercontent.com/kyokley/92703c1367abfbd86b1b575be004a688/raw/65a910d066c332fdc3e428204e6138253bec2b17/dvim.sh >> ~/.bashrc

function git-absolute-path () {
    fullpath=$([[ $1 = /* ]] && echo "$1" || echo "$(pwd -P)/${1#./}")
    if [ $(git rev-parse --show-superproject-working-tree) ]
    then
        gitroot="$(git rev-parse --show-superproject-working-tree)"
    else
        gitroot="$(git rev-parse --show-toplevel)" || return 1
    fi
    [[ "$fullpath" =~ "$gitroot" ]] && echo "${fullpath/$gitroot\//}"
}

function dvim() {
    ROOT_HOME="/root"

    GIT_ROOT=$(git rev-parse --show-toplevel 2>/dev/null)

    if [ $? -eq 0 ]
    then
        TITLE_ROOT="$GIT_ROOT"

        if [ $(git rev-parse --show-superproject-working-tree 2>/dev/null) ]
        then
            GIT_ROOT="$(git rev-parse --show-superproject-working-tree)"
        fi

        docker run \
            --rm -it \
            -e DISPLAY=unix$DISPLAY \
            -v /tmp/.X11-unix:/tmp/.X11-unix \
            -v "$GIT_ROOT":/files \
            -v "$HOME"/.vimbackup:"$ROOT_HOME"/.vimbackup \
            -v "$HOME"/.vimswap:"$ROOT_HOME"/.vimswap \
            -v "$HOME"/.vimundodir:"$ROOT_HOME"/.vimundodir \
            -v "$HOME"/.vimviews:"$ROOT_HOME"/.vimviews \
            -v "$HOME"/.local/share/nvim/shada:"$ROOT_HOME"/.shada \
            kyokley/neovim-custom \
            -i "$ROOT_HOME"/.shada/dvim_main.shada \
            --cmd "let g:git_root = \"${TITLE_ROOT}\"" \
            $(
                    for file in $@
                    do
                        echo $(git-absolute-path "$file")
                    done
            )
    else
        docker run \
            --rm -it \
            -e DISPLAY=unix$DISPLAY \
            -v /tmp/.X11-unix:/tmp/.X11-unix \
            -v $(pwd):/files \
            kyokley/neovim-custom \
            "$@"
    fi
}

I created a dockerized version of my neovim which gave me an easy way to bring my config with me to any computer I used. However, the docker commands necessary to mount an entire project directory into the container or have clipboard access were very messy so I'm placing them here in a form that can easily be curl'd straight into a bashrc or zshenv.

Some things I was hoping to achieve with these functions:

• Mount the current directory or entire git project inside the container
• Persistent undo and backups
• Shared clipboard with host