Super simple hack to automatically switch to a specific Node version on CD (using NVM and ZSH)

gistfile1.sh

# Detects if a .nvmrc file exists, and switches
# to the specified version if it does.
# The contents of the .nvmrc file should simply be the node
# version to use, like "v0.8.11"
# Put this in your .zshrc file or somewhere else that is loaded automatically
function chpwd() {
  emulate -L zsh
  if [[ -f .nvmrc ]] then
    nvm use `cat .nvmrc`
  fi
}

You don't need to cat the contents of the nvmrc file into nvm use, the default behavior of nvm use is to look for a nvmrc file and use that, so you could just do:

function chpwd() {
  emulate -L zsh
  if [[ -f .nvmrc ]] then
    nvm use
  fi
}