Dockerfile

FROM base/archlinux

ADD dotfiles/vimrc /root/.vimrc
ADD dotfiles/vim /root/.dotfiles/vim

RUN pacman -Syu --noconfirm && \
    pacman -S --noconfirm \
      neovim \
      git \
      python2-neovim \
      python-neovim \
      xclip \
      xsel && \
    pacman -Scc --noconfirm && \
    mkdir -p /root/.config && \
    ln -s /root/.dotfiles/vim /root/.vim && \
    ln -s /root/.vim /root/.config/nvim && \
    nvim --headless +PluginInstall +qa

CMD /usr/bin/env nvim

Makefile

SUDO=sudo
DOTFILES=$(HOME)/.dotfiles

all: bindmounts build

bindmounts:
	@mkdir -p dotfiles
	@echo Bind mounting dotfiles
	mount | grep -q "on $(PWD)/dotfiles" || sudo mount --bind "$(DOTFILES)" "$(PWD)/dotfiles"

build:
	$(SUDO) -E docker build -t local/neovim .

Will nvim --headless +PluginInstall +qa wait until PluginInstall is finished or quit immediately which results in the PluginInstall command not even started yet?