mirror of
https://github.com/nvm-sh/nvm.git
synced 2025-10-31 10:15:53 +08:00
319 lines
8.9 KiB
Bash
Executable File
319 lines
8.9 KiB
Bash
Executable File
#!/usr/bin/env bash
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{ # this ensures the entire script is downloaded #
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nvm_has() {
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type "$1" > /dev/null 2>&1
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}
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nvm_install_dir() {
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echo ${NVM_DIR:-"$HOME/.nvm"}
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}
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nvm_latest_version() {
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echo "v0.31.3"
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}
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#
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# Outputs the location to NVM depending on:
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# * The availability of $NVM_SOURCE
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# * The method used ("script" or "git" in the script, defaults to "git")
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# NVM_SOURCE always takes precedence unless the method is "script-nvm-exec"
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#
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nvm_source() {
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local NVM_METHOD
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NVM_METHOD="$1"
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local NVM_SOURCE_URL
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NVM_SOURCE_URL="$NVM_SOURCE"
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if [ "_$NVM_METHOD" = "_script-nvm-exec" ]; then
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NVM_SOURCE_URL="https://raw.githubusercontent.com/creationix/nvm/$(nvm_latest_version)/nvm-exec"
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elif [ -z "$NVM_SOURCE_URL" ]; then
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if [ "_$NVM_METHOD" = "_script" ]; then
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NVM_SOURCE_URL="https://raw.githubusercontent.com/creationix/nvm/$(nvm_latest_version)/nvm.sh"
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elif [ "_$NVM_METHOD" = "_git" ] || [ -z "$NVM_METHOD" ]; then
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NVM_SOURCE_URL="https://github.com/creationix/nvm.git"
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else
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echo >&2 "Unexpected value \"$NVM_METHOD\" for \$NVM_METHOD"
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return 1
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fi
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fi
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echo "$NVM_SOURCE_URL"
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}
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#
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# Node.js version to install
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#
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nvm_node_version() {
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echo "$NODE_VERSION"
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}
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nvm_download() {
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if nvm_has "curl"; then
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curl -q $*
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elif nvm_has "wget"; then
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# Emulate curl with wget
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ARGS=$(echo "$*" | command sed -e 's/--progress-bar /--progress=bar /' \
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-e 's/-L //' \
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-e 's/-I /--server-response /' \
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-e 's/-s /-q /' \
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-e 's/-o /-O /' \
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-e 's/-C - /-c /')
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wget $ARGS
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fi
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}
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install_nvm_from_git() {
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local INSTALL_DIR
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INSTALL_DIR="$(nvm_install_dir)"
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if [ -d "$INSTALL_DIR/.git" ]; then
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echo "=> nvm is already installed in $INSTALL_DIR, trying to update using git"
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printf "\r=> "
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command git --git-dir="$INSTALL_DIR"/.git --work-tree="$INSTALL_DIR" fetch 2> /dev/null || {
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echo >&2 "Failed to update nvm, run 'git fetch' in $INSTALL_DIR yourself."
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exit 1
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}
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else
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# Cloning to $NVM_DIR
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echo "=> Downloading nvm from git to '$INSTALL_DIR'"
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printf "\r=> "
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mkdir -p "$INSTALL_DIR"
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command git clone "$(nvm_source)" "$INSTALL_DIR" || {
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echo >&2 "Failed to clone nvm repo. Please report this!"
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exit 1
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}
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fi
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command git --git-dir="$INSTALL_DIR"/.git --work-tree="$INSTALL_DIR" checkout --quiet "$(nvm_latest_version)"
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if [ ! -z "$(command git --git-dir="$INSTALL_DIR"/.git --work-tree="$INSTALL_DIR" show-ref refs/heads/master)" ]; then
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if command git --git-dir="$INSTALL_DIR"/.git --work-tree="$INSTALL_DIR" branch --quiet 2>/dev/null; then
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command git --git-dir="$INSTALL_DIR"/.git --work-tree="$INSTALL_DIR" branch --quiet -D master >/dev/null 2>&1
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else
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echo >&2 "Your version of git is out of date. Please update it!"
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command git --git-dir="$INSTALL_DIR"/.git --work-tree="$INSTALL_DIR" branch -D master >/dev/null 2>&1
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fi
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fi
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return
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}
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#
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# Automatically install Node.js
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#
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nvm_install_node() {
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local NODE_VERSION
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NODE_VERSION="$(nvm_node_version)"
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if [ -z "$NODE_VERSION" ]; then
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return 0
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fi
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echo "=> Installing Node.js version $NODE_VERSION"
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nvm install "$NODE_VERSION"
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local CURRENT_NVM_NODE
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CURRENT_NVM_NODE="$(nvm_version current)"
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if [ "$(nvm_version "$NODE_VERSION")" == "$CURRENT_NVM_NODE" ]; then
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echo "=> Node.js version $NODE_VERSION has been successfully installed"
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else
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echo >&2 "Failed to install Node.js $NODE_VERSION"
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fi
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}
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install_nvm_as_script() {
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local INSTALL_DIR
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INSTALL_DIR="$(nvm_install_dir)"
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local NVM_SOURCE_LOCAL
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NVM_SOURCE_LOCAL=$(nvm_source script)
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local NVM_EXEC_SOURCE
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NVM_EXEC_SOURCE=$(nvm_source script-nvm-exec)
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# Downloading to $INSTALL_DIR
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mkdir -p "$INSTALL_DIR"
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if [ -f "$INSTALL_DIR/nvm.sh" ]; then
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echo "=> nvm is already installed in $INSTALL_DIR, trying to update the script"
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else
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echo "=> Downloading nvm as script to '$INSTALL_DIR'"
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fi
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nvm_download -s "$NVM_SOURCE_LOCAL" -o "$INSTALL_DIR/nvm.sh" || {
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echo >&2 "Failed to download '$NVM_SOURCE_LOCAL'"
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return 1
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}
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nvm_download -s "$NVM_EXEC_SOURCE" -o "$NVM_DIR/nvm-exec" || {
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echo >&2 "Failed to download '$NVM_EXEC_SOURCE'"
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return 2
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}
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chmod a+x "$NVM_DIR/nvm-exec" || {
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echo >&2 "Failed to mark '$NVM_DIR/nvm-exec' as executable"
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return 3
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}
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}
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#
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# Detect profile file if not specified as environment variable
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# (eg: PROFILE=~/.myprofile)
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# The echo'ed path is guaranteed to be an existing file
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# Otherwise, an empty string is returned
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#
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nvm_detect_profile() {
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if [ -n "$PROFILE" -a -f "$PROFILE" ]; then
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echo "$PROFILE"
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return
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fi
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local DETECTED_PROFILE
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DETECTED_PROFILE=''
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local SHELLTYPE
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SHELLTYPE="$(basename "/$SHELL")"
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if [ "$SHELLTYPE" = "bash" ]; then
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if [ -f "$HOME/.bashrc" ]; then
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DETECTED_PROFILE="$HOME/.bashrc"
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elif [ -f "$HOME/.bash_profile" ]; then
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DETECTED_PROFILE="$HOME/.bash_profile"
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fi
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elif [ "$SHELLTYPE" = "zsh" ]; then
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DETECTED_PROFILE="$HOME/.zshrc"
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fi
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if [ -z "$DETECTED_PROFILE" ]; then
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if [ -f "$HOME/.profile" ]; then
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DETECTED_PROFILE="$HOME/.profile"
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elif [ -f "$HOME/.bashrc" ]; then
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DETECTED_PROFILE="$HOME/.bashrc"
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elif [ -f "$HOME/.bash_profile" ]; then
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DETECTED_PROFILE="$HOME/.bash_profile"
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elif [ -f "$HOME/.zshrc" ]; then
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DETECTED_PROFILE="$HOME/.zshrc"
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fi
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fi
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if [ ! -z "$DETECTED_PROFILE" ]; then
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echo "$DETECTED_PROFILE"
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fi
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}
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#
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# Check whether the user has any globally-installed npm modules in their system
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# Node, and warn them if so.
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#
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nvm_check_global_modules() {
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command -v npm >/dev/null 2>&1 || return 0
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local NPM_VERSION
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NPM_VERSION="$(npm --version)"
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NPM_VERSION="${NPM_VERSION:--1}"
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[ "${NPM_VERSION%%[!-0-9]*}" -gt 0 ] || return 0
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local NPM_GLOBAL_MODULES
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NPM_GLOBAL_MODULES="$(
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npm list -g --depth=0 |
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sed '/ npm@/d' |
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sed '/ (empty)$/d'
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)"
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local MODULE_COUNT
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MODULE_COUNT="$(
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printf %s\\n "$NPM_GLOBAL_MODULES" |
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sed -ne '1!p' | # Remove the first line
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wc -l | tr -d ' ' # Count entries
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)"
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if [ $MODULE_COUNT -ne 0 ]; then
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cat <<-'END_MESSAGE'
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=> You currently have modules installed globally with `npm`. These will no
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=> longer be linked to the active version of Node when you install a new node
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=> with `nvm`; and they may (depending on how you construct your `$PATH`)
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=> override the binaries of modules installed with `nvm`:
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END_MESSAGE
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printf %s\\n "$NPM_GLOBAL_MODULES"
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cat <<-'END_MESSAGE'
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=> If you wish to uninstall them at a later point (or re-install them under your
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=> `nvm` Nodes), you can remove them from the system Node as follows:
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$ nvm use system
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$ npm uninstall -g a_module
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END_MESSAGE
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fi
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}
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nvm_do_install() {
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if [ -z "$METHOD" ]; then
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# Autodetect install method
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if nvm_has "git"; then
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install_nvm_from_git
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elif nvm_has "nvm_download"; then
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install_nvm_as_script
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else
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echo >&2 "You need git, curl, or wget to install nvm"
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exit 1
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fi
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elif [ "~$METHOD" = "~git" ]; then
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if ! nvm_has "git"; then
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echo >&2 "You need git to install nvm"
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exit 1
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fi
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install_nvm_from_git
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elif [ "~$METHOD" = "~script" ]; then
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if ! nvm_has "nvm_download"; then
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echo >&2 "You need curl or wget to install nvm"
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exit 1
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fi
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install_nvm_as_script
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fi
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echo
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local NVM_PROFILE
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NVM_PROFILE=$(nvm_detect_profile)
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local INSTALL_DIR
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INSTALL_DIR="$(nvm_install_dir)"
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SOURCE_STR="\nexport NVM_DIR=\"$INSTALL_DIR\"\n[ -s \"\$NVM_DIR/nvm.sh\" ] && . \"\$NVM_DIR/nvm.sh\" # This loads nvm"
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if [ -z "$NVM_PROFILE" ] ; then
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echo "=> Profile not found. Tried $NVM_PROFILE (as defined in \$PROFILE), ~/.bashrc, ~/.bash_profile, ~/.zshrc, and ~/.profile."
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echo "=> Create one of them and run this script again"
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echo "=> Create it (touch $NVM_PROFILE) and run this script again"
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echo " OR"
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echo "=> Append the following lines to the correct file yourself:"
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printf "$SOURCE_STR"
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echo
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else
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if ! command grep -qc '/nvm.sh' "$NVM_PROFILE"; then
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echo "=> Appending source string to $NVM_PROFILE"
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printf "$SOURCE_STR\n" >> "$NVM_PROFILE"
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else
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echo "=> Source string already in $NVM_PROFILE"
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fi
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fi
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# Source nvm
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. "$NVM_DIR/nvm.sh"
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nvm_check_global_modules
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nvm_install_node
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nvm_reset
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echo "=> Close and reopen your terminal to start using nvm or run the following to use it now:"
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printf "$SOURCE_STR"
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}
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#
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# Unsets the various functions defined
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# during the execution of the install script
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#
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nvm_reset() {
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unset -f nvm_reset nvm_has nvm_latest_version \
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nvm_source nvm_download install_nvm_as_script install_nvm_from_git \
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nvm_detect_profile nvm_check_global_modules nvm_do_install \
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nvm_install_dir nvm_node_version nvm_install_node
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}
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[ "_$NVM_ENV" = "_testing" ] || nvm_do_install
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} # this ensures the entire script is downloaded #
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