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prezto/modules/node/init.zsh

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#
# Loads the Node Version Manager and enables npm completion.
#
# Authors:
# Sorin Ionescu <sorin.ionescu@gmail.com>
# Zeh Rizzatti <zehrizzatti@gmail.com>
#
# Load manually installed NVM into the shell session.
if [[ -s "$HOME/.nvm/nvm.sh" ]]; then
source "$HOME/.nvm/nvm.sh"
# OSX: Homebrew
elif (( $+commands[brew] )) && [[ -d "$(brew --prefix nvm 2>/dev/null)" ]]; then
source $(brew --prefix nvm)/nvm.sh
# Arch Linux: Pacman
elif [[ -s "/usr/share/nvm/nvm.sh" ]]; then
source "/usr/share/nvm/nvm.sh"
# Return if requirements are not found.
elif (( ! $+commands[node] )); then
return 1
fi
# Load NPM completion.
if (( $+commands[npm] )); then
cache_file="${0:h}/cache.zsh"
if [[ "$commands[npm]" -nt "$cache_file" || ! -s "$cache_file" ]]; then
# npm is slow; cache its output.
npm completion >! "$cache_file" 2> /dev/null
fi
source "$cache_file"
unset cache_file
fi