Code snippets for install dotfile managed by a git bare repo following https://developer.atlassian.com/blog/2016/02/best-way-to-store-dotfiles-git-bare-repo/

install_dotfiles

# Suorce: https://news.ycombinator.com/item?id=11071754

repo="https://github.com/lijunzh/dotfiles.git"
# Uncomment if initiate a new dotfiles bare repo
# git init --bare $HOME/.cfg

# Uncomment if install existing dotfiles repo
git clone --bare ${repo} ~/.cfg

# Set temporary config commend, alias should be added in .bashrc
config="/usr/bin/git --git-dir=${HOME}/.cfg/ --work-tree=${HOME}"
${config} config status.showUntrackedFiles no

# Install to $HOME, backup esisting files
mkdir -p .config-backup/.vim/backups
mkdir -p .config-backup/.vim/swaps
mkdir -p .config-backup/.vim/undo

${config} checkout
if [ $? = 0 ]; then
  echo "Checked out config.";
else
    echo "Backing up pre-existing dot files.";
    ${config} checkout 2>&1 | egrep "\s+\." | awk {'print $1'} | xargs -I{} mv {} .config-backup/{}
    ${config} checkout
    echo "Checked out config.";
fi;

# config local git repo
$(config) config remote add origin ${repo}
$(config) config remote set-url --fetch origin ${repo}

# install vim-plug if vim is installed
if command -v vim > /dev/null 2>&1; then
    # install vim-plug if not been install before
    if [ ! -s ~/.vim/autoload/plug.vim ]; then
        curl -fLo ~/.vim/autoload/plug.vim --create-dirs https://raw.githubusercontent.com/junegunn/vim-plug/master/plug.vim
    fi
fi

# install vim-plug if neovim is installed
if command -v nvim > /dev/null 2>&1; then
    # install vim-plug if not been install before
    if [ ! -s ~/.local/share/nvim/site/autoload/plug.vim ]; then
        curl -fLo ~/.local/share/nvim/site/autoload/plug.vim --create-dirs https://raw.githubusercontent.com/junegunn/vim-plug/master/plug.vim
    fi
fi