nvm_profile_is_bash_or_zsh() { local TEST_PROFILE TEST_PROFILE="${1-}" case "${TEST_PROFILE-}" in *"/.bashrc" | *"/.bash_profile" | *"/.zshrc") return ;; *) return 1 ;; esac } # # Outputs the location to NVM depending on: # * The availability of $NVM_SOURCE # * The method used ("script" or "git"in the script, defaults to "git") # NVM_SOURCE always takes precedence unless the method is "script-nvm-exec" # nvm_source() { local NVM_METHOD NVM_METHOD="$1" local NVM_SOURCE_URL NVM_SOURCE_URL="$NVM_SOURCE" if [ "_$NVM_METHOD" = "_script-nvm-exec" ]; then NVM_SOURCE_URL="https://raw.githubusercontent.com/creationix/nvm/$(nvm_latest_version)/nvm-exec" elif [ "_$NVM_METHOD" = "_script-nvm-bash-completion" ]; then NVM_SOURCE_URL="https://raw.githubusercontent.com/creationix/nvm/$(nvm_latest_version)/bash_completion" elif [ -z "$NVM_SOURCE_URL" ]; then if [ "_$NVM_METHOD" = "_script" ]; then NVM_SOURCE_URL="https://raw.githubusercontent.com/creationix/nvm/$(nvm_latest_version)/nvm.sh" elif [ "_$NVM_METHOD" = "_git" ] || [ -z "$NVM_METHOD" ]; then NVM_SOURCE_URL="https://github.com/creationix/nvm.git" else echo >&2 "Unexpected value \"$NVM_METHOD\" for \$NVM_METHOD" return 1 fi fi echo "$NVM_SOURCE_URL" } # # Node.js version to install # nvm_node_version() { echo "$NODE_VERSION" }
install_nvm_from_git() { local INSTALL_DIR INSTALL_DIR="$(nvm_install_dir)"
if [ -d "$INSTALL_DIR/.git" ]; then echo "=> nvm is already installed in $INSTALL_DIR, trying to update using git" command printf '\r=> ' command git --git-dir="$INSTALL_DIR"/.git --work-tree="$INSTALL_DIR" fetch origin tag "$(nvm_latest_version)" --depth=1 2> /dev/null || { echo >&2 "Failed to update nvm, run 'git fetch' in $INSTALL_DIR yourself." exit 1 } else # Cloning to $INSTALL_DIR echo "=> Downloading nvm from git to '$INSTALL_DIR'" command printf '\r=> ' mkdir -p "${INSTALL_DIR}" if [ "$(ls -A "${INSTALL_DIR}")" ]; then command git init "${INSTALL_DIR}" || { echo >&2 'Failed to initialize nvm repo. Please report this!' exit 2 } command git --git-dir="${INSTALL_DIR}/.git" remote add origin "$(nvm_source)" 2> /dev/null \ || command git --git-dir="${INSTALL_DIR}/.git" remote set-url origin "$(nvm_source)" || { echo >&2 'Failed to add remote "origin" (or set the URL). Please report this!' exit 2 } command git --git-dir="${INSTALL_DIR}/.git" fetch origin tag "$(nvm_latest_version)" --depth=1 || { echo >&2 'Failed to fetch origin with tags. Please report this!' exit 2 } else command git -c advice.detachedHead=false clone "$(nvm_source)" -b "$(nvm_latest_version)" --depth=1 "${INSTALL_DIR}" || { echo >&2 'Failed to clone nvm repo. Please report this!' exit 2 } fi fi command git -c advice.detachedHead=false --git-dir="$INSTALL_DIR"/.git --work-tree="$INSTALL_DIR" checkout -f --quiet "$(nvm_latest_version)" if [ ! -z "$(command git --git-dir="$INSTALL_DIR"/.git --work-tree="$INSTALL_DIR" show-ref refs/heads/master)" ]; then if command git --git-dir="$INSTALL_DIR"/.git --work-tree="$INSTALL_DIR" branch --quiet 2>/dev/null; then command git --git-dir="$INSTALL_DIR"/.git --work-tree="$INSTALL_DIR" branch --quiet -D master >/dev/null 2>&1 else echo >&2 "Your version of git is out of date. Please update it!" command git --git-dir="$INSTALL_DIR"/.git --work-tree="$INSTALL_DIR" branch -D master >/dev/null 2>&1 fi fi
echo "=> Compressing and cleaning up git repository" if ! command git --git-dir="$INSTALL_DIR"/.git --work-tree="$INSTALL_DIR" reflog expire --expire=now --all; then echo >&2 "Your version of git is out of date. Please update it!" fi if ! command git --git-dir="$INSTALL_DIR"/.git --work-tree="$INSTALL_DIR" gc --auto --aggressive --prune=now ; then echo >&2 "Your version of git is out of date. Please update it!" fi return } # # Automatically install Node.js # nvm_install_node() { local NODE_VERSION_LOCAL NODE_VERSION_LOCAL="$(nvm_node_version)"
if [ -z "$NODE_VERSION_LOCAL" ]; then return 0 fi
echo "=> Installing Node.js version $NODE_VERSION_LOCAL" nvm install "$NODE_VERSION_LOCAL" local CURRENT_NVM_NODE
CURRENT_NVM_NODE="$(nvm_version current)" if [ "$(nvm_version "$NODE_VERSION_LOCAL")" == "$CURRENT_NVM_NODE" ]; then echo "=> Node.js version $NODE_VERSION_LOCAL has been successfully installed" else echo >&2 "Failed to install Node.js $NODE_VERSION_LOCAL" fi }
install_nvm_as_script() { local INSTALL_DIR INSTALL_DIR="$(nvm_install_dir)" local NVM_SOURCE_LOCAL NVM_SOURCE_LOCAL="$(nvm_source script)" local NVM_EXEC_SOURCE NVM_EXEC_SOURCE="$(nvm_source script-nvm-exec)" local NVM_BASH_COMPLETION_SOURCE NVM_BASH_COMPLETION_SOURCE="$(nvm_source script-nvm-bash-completion)" # Downloading to $INSTALL_DIR mkdir -p "$INSTALL_DIR" if [ -f "$INSTALL_DIR/nvm.sh" ]; then echo "=> nvm is already installed in $INSTALL_DIR, trying to update the script" else echo "=> Downloading nvm as script to '$INSTALL_DIR'" fi nvm_download -s "$NVM_SOURCE_LOCAL" -o "$INSTALL_DIR/nvm.sh" || { echo >&2 "Failed to download '$NVM_SOURCE_LOCAL'" return 1 } & nvm_download -s "$NVM_EXEC_SOURCE" -o "$INSTALL_DIR/nvm-exec" || { echo >&2 "Failed to download '$NVM_EXEC_SOURCE'" return 2 } & nvm_download -s "$NVM_BASH_COMPLETION_SOURCE" -o "$INSTALL_DIR/bash_completion" || { echo >&2 "Failed to download '$NVM_BASH_COMPLETION_SOURCE'" return 2 } & for job in $(jobs -p | command sort) do wait "$job" || return $? done chmod a+x "$INSTALL_DIR/nvm-exec" || { echo >&2 "Failed to mark '$INSTALL_DIR/nvm-exec' as executable" return 3 } }
nvm_try_profile() { if [ -z "${1-}" ] || [ ! -f "${1}" ]; then return 1 fi echo "${1}" } # # Detect profile file if not specified as environment variable # (eg: PROFILE=~/.myprofile) # The echo'ed path is guaranteed to be an existing file # Otherwise, an empty string is returned # nvm_detect_profile() { if [ -n "${PROFILE}" ] && [ -f "${PROFILE}" ]; then echo "${PROFILE}" return fi
local DETECTED_PROFILE DETECTED_PROFILE=''
if [ -n "${BASH_VERSION-}" ]; then if [ -f "$HOME/.bashrc" ]; then DETECTED_PROFILE="$HOME/.bashrc" elif [ -f "$HOME/.bash_profile" ]; then DETECTED_PROFILE="$HOME/.bash_profile" fi elif [ -n "${ZSH_VERSION-}" ]; then DETECTED_PROFILE="$HOME/.zshrc" fi
if [ -z "$DETECTED_PROFILE" ]; then for EACH_PROFILE in ".profile" ".bashrc" ".bash_profile" ".zshrc" do if DETECTED_PROFILE="$(nvm_try_profile "${HOME}/${EACH_PROFILE}")"; then break fi done fi
if [ ! -z "$DETECTED_PROFILE" ]; then echo "$DETECTED_PROFILE" fi } # # Check whether the user has any globally-installed npm modules in their system # Node, and warn them if so. # nvm_check_global_modules() { command -v npm >/dev/null 2>&1 || return 0
local NPM_GLOBAL_MODULES NPM_GLOBAL_MODULES="$( npm list -g --depth=0 | command sed -e '/ npm@/d' -e '/ (empty)$/d' )"
local MODULE_COUNT MODULE_COUNT="$( command printf %s\\n "$NPM_GLOBAL_MODULES" | command sed -ne '1!p' | # Remove the first line wc -l | command tr -d ' ' # Count entries )"
if [ "${MODULE_COUNT}" != '0' ]; then # shellcheck disable=SC2016 echo '=> You currently have modules installed globally with `npm`. These will no' # shellcheck disable=SC2016 echo '=> longer be linked to the active version of Node when you install a new node' # shellcheck disable=SC2016 echo '=> with `nvm`; and they may (depending on how you construct your `$PATH`)' # shellcheck disable=SC2016 echo '=> override the binaries of modules installed with `nvm`:' echo
command printf %s\\n "$NPM_GLOBAL_MODULES" echo '=> If you wish to uninstall them at a later point (or re-install them under your' # shellcheck disable=SC2016 echo '=> `nvm` Nodes), you can remove them from the system Node as follows:' echo echo ' $ nvm use system' echo ' $ npm uninstall -g a_module' echo fi }
nvm_do_install() { if [ -n "${NVM_DIR-}" ] && ! [ -d "${NVM_DIR}" ]; then echo >&2 "You have \$NVM_DIR set to \"${NVM_DIR}\", but that directory does not exist. Check your profile files and environment." exit 1 fi if [ -z "${METHOD}" ]; then # Autodetect install method if nvm_has git; then install_nvm_from_git elif nvm_has nvm_download; then install_nvm_as_script else echo >&2 'You need git, curl, or wget to install nvm' exit 1 fi elif [ "${METHOD}" = 'git' ]; then if ! nvm_has git; then echo >&2 "You need git to install nvm" exit 1 fi install_nvm_from_git elif [ "${METHOD}" = 'script' ]; then if ! nvm_has nvm_download; then echo >&2 "You need curl or wget to install nvm" exit 1 fi install_nvm_as_script fi
echo
local NVM_PROFILE NVM_PROFILE="$(nvm_detect_profile)" local PROFILE_INSTALL_DIR PROFILE_INSTALL_DIR="$(nvm_install_dir | command sed "s:^$HOME:\$HOME:")"
if [ -z "${NVM_PROFILE-}" ] ; then local TRIED_PROFILE if [ -n "${PROFILE}" ]; then TRIED_PROFILE="${NVM_PROFILE} (as defined in \$PROFILE), " fi echo "=> Profile not found. Tried ${TRIED_PROFILE-}~/.bashrc, ~/.bash_profile, ~/.zshrc, and ~/.profile." echo "=> Create one of them and run this script again" echo " OR" echo "=> Append the following lines to the correct file yourself:" command printf "${SOURCE_STR}" echo else if nvm_profile_is_bash_or_zsh "${NVM_PROFILE-}"; then BASH_OR_ZSH=true fi if ! command grep -qc '/nvm.sh' "$NVM_PROFILE"; then echo "=> Appending nvm source string to $NVM_PROFILE" command printf "${SOURCE_STR}" >> "$NVM_PROFILE" else echo "=> nvm source string already in ${NVM_PROFILE}" fi # shellcheck disable=SC2016 if ${BASH_OR_ZSH} && ! command grep -qc '$NVM_DIR/bash_completion' "$NVM_PROFILE"; then echo "=> Appending bash_completion source string to $NVM_PROFILE" command printf "$COMPLETION_STR" >> "$NVM_PROFILE" else echo "=> bash_completion source string already in ${NVM_PROFILE}" fi fi if ${BASH_OR_ZSH} && [ -z "${NVM_PROFILE-}" ] ; then echo "=> Please also append the following lines to the if you are using bash/zsh shell:" command printf "${COMPLETION_STR}" fi # Source nvm # shellcheck source=/dev/null \. "$(nvm_install_dir)/nvm.sh"
nvm_check_global_modules
nvm_install_node
nvm_reset
echo "=> Close and reopen your terminal to start using nvm or run the following to use it now:" command printf "${SOURCE_STR}" if ${BASH_OR_ZSH} ; then command printf "${COMPLETION_STR}" fi } # # Unsets the various functions defined # during the execution of the install script # nvm_reset() { unset -f nvm_has nvm_install_dir nvm_latest_version nvm_profile_is_bash_or_zsh \ nvm_source nvm_node_version nvm_download install_nvm_from_git nvm_install_node \ install_nvm_as_script nvm_try_profile nvm_detect_profile nvm_check_global_modules \ nvm_do_install nvm_reset }
[ "_$NVM_ENV" = "_testing" ] || nvm_do_install
} # this ensures the entire script is downloaded #
