WSL NVM fix in bash.rc

.bashrc

# Add these lines to .bashrc in WSL to prevent slow shell startup because of NVM

export NVM_DIR="$HOME/.nvm"
# add --no-use so that nvm doesn't load node automatically
[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh" --no-use  # This loads nvm
[ -s "$NVM_DIR/bash_completion" ] && \. "$NVM_DIR/bash_completion"  # This loads nvm bash_completion

# manually add desired node version to PATH
NODE_VERSION="v12.6.0"
export PATH="${PATH}:${NVM_DIR}/versions/node/${NODE_VERSION}/bin"

get_bash_w() {
  # Returns the same working directory that the \W bash prompt command
  echo $(pwd | sed 's@'"$HOME"'@~@')
}

split_pwd() {
  # Split pwd into the first element, elipsis (...) and the last subfolder
  # /usr/local/share/doc --> /usr/.../doc
  # ~/project/folder/subfolder --> ~/project/../subfolder
  split=2
  W=$(get_bash_w)
  if [ $(echo $W | grep -o '/' | wc -l) -gt $split ]; then
    echo $W | cut -d'/' -f1-$split | xargs -I{} echo {}"/../${W##*/}"
  else
    echo $W
  fi
}

# git aware bash
# export PS1='\[\033[01;34m\]\w\[\033[01;32m\]\[\033[0m\033[0;32m\]\[\033[01;32m\]$(__git_ps1)\[\033[00m\] $ '

# git aware bash with path shortened
export PS1='\[\033[01;34m\]$(split_pwd)\[\033[01;32m\]\[\033[0m\033[0;32m\]\[\033[01;32m\]$(__git_ps1)\[\033[35m\] >\[\033[94m\]>\[\033[33m\]> \[\033[00m\]'
#parse_git_branch() {
#     git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/(\1) /'
#}

#export PS1="\[\e[34m\]\u@\h \[\e[32m\]\$(parse_git_branch)\[\e[00m\]$ "