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nvm.sh
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# Node Version Manager
# Implemented as a POSIX-compliant function
# Should work on sh, dash, bash, ksh, zsh
# To use source this file from your bash profile
#
# Implemented by Tim Caswell <tim@creationix.com>
# with much bash help from Matthew Ranney
# "local" warning, quote expansion warning, sed warning, `local` warning
# shellcheck disable=SC2039,SC2016,SC2001,SC3043
{ # this ensures the entire script is downloaded #
# shellcheck disable=SC3028
NVM_SCRIPT_SOURCE="$_"
nvm_is_zsh() {
[ -n "${ZSH_VERSION-}" ]
}
nvm_stdout_is_terminal() {
[ -t 1 ]
}
nvm_echo() {
command printf %s\\n "$*" 2>/dev/null
}
nvm_echo_with_colors() {
command printf %b\\n "$*" 2>/dev/null
}
nvm_cd() {
\cd "$@"
}
nvm_err() {
>&2 nvm_echo "$@"
}
nvm_err_with_colors() {
>&2 nvm_echo_with_colors "$@"
}
nvm_grep() {
GREP_OPTIONS='' command grep "$@"
}
nvm_has() {
type "${1-}" >/dev/null 2>&1
}
nvm_has_non_aliased() {
nvm_has "${1-}" && ! nvm_is_alias "${1-}"
}
nvm_is_alias() {
# this is intentionally not "command alias" so it works in zsh.
\alias "${1-}" >/dev/null 2>&1
}
nvm_command_info() {
local COMMAND
local INFO
COMMAND="${1}"
if type "${COMMAND}" | nvm_grep -q hashed; then
INFO="$(type "${COMMAND}" | command sed -E 's/\(|\)//g' | command awk '{print $4}')"
elif type "${COMMAND}" | nvm_grep -q aliased; then
# shellcheck disable=SC2230
INFO="$(which "${COMMAND}") ($(type "${COMMAND}" | command awk '{ $1=$2=$3=$4="" ;print }' | command sed -e 's/^\ *//g' -Ee "s/\`|'//g"))"
elif type "${COMMAND}" | nvm_grep -q "^${COMMAND} is an alias for"; then
# shellcheck disable=SC2230
INFO="$(which "${COMMAND}") ($(type "${COMMAND}" | command awk '{ $1=$2=$3=$4=$5="" ;print }' | command sed 's/^\ *//g'))"
elif type "${COMMAND}" | nvm_grep -q "^${COMMAND} is /"; then
INFO="$(type "${COMMAND}" | command awk '{print $3}')"
else
INFO="$(type "${COMMAND}")"
fi
nvm_echo "${INFO}"
}
nvm_has_colors() {
local NVM_NUM_COLORS
if nvm_has tput; then
NVM_NUM_COLORS="$(command tput -T "${TERM:-vt100}" colors)"
fi
[ "${NVM_NUM_COLORS:--1}" -ge 8 ] && [ "${NVM_NO_COLORS-}" != '--no-colors' ]
}
nvm_curl_libz_support() {
curl -V 2>/dev/null | nvm_grep "^Features:" | nvm_grep -q "libz"
}
nvm_curl_use_compression() {
nvm_curl_libz_support && nvm_version_greater_than_or_equal_to "$(nvm_curl_version)" 7.21.0
}
nvm_get_latest() {
local NVM_LATEST_URL
local CURL_COMPRESSED_FLAG
if nvm_has "curl"; then
if nvm_curl_use_compression; then
CURL_COMPRESSED_FLAG="--compressed"
fi
NVM_LATEST_URL="$(curl ${CURL_COMPRESSED_FLAG:-} -q -w "%{url_effective}\\n" -L -s -S https://latest.nvm.sh -o /dev/null)"
elif nvm_has "wget"; then
NVM_LATEST_URL="$(wget -q https://latest.nvm.sh --server-response -O /dev/null 2>&1 | command awk '/^ Location: /{DEST=$2} END{ print DEST }')"
else
nvm_err 'nvm needs curl or wget to proceed.'
return 1
fi
if [ -z "${NVM_LATEST_URL}" ]; then
nvm_err "https://latest.nvm.sh did not redirect to the latest release on GitHub"
return 2
fi
nvm_echo "${NVM_LATEST_URL##*/}"
}
nvm_download() {
if nvm_has "curl"; then
local CURL_COMPRESSED_FLAG=""
local CURL_HEADER_FLAG=""
if [ -n "${NVM_AUTH_HEADER:-}" ]; then
sanitized_header=$(nvm_sanitize_auth_header "${NVM_AUTH_HEADER}")
CURL_HEADER_FLAG="--header \"Authorization: ${sanitized_header}\""
fi
if nvm_curl_use_compression; then
CURL_COMPRESSED_FLAG="--compressed"
fi
local NVM_DOWNLOAD_ARGS
NVM_DOWNLOAD_ARGS=''
for arg in "$@"; do
NVM_DOWNLOAD_ARGS="${NVM_DOWNLOAD_ARGS} \"$arg\""
done
eval "curl -q --fail ${CURL_COMPRESSED_FLAG:-} ${CURL_HEADER_FLAG:-} ${NVM_DOWNLOAD_ARGS}"
elif nvm_has "wget"; then
# Emulate curl with wget
ARGS=$(nvm_echo "$@" | command sed "
s/--progress-bar /--progress=bar /
s/--compressed //
s/--fail //
s/-L //
s/-I /--server-response /
s/-s /-q /
s/-sS /-nv /
s/-o /-O /
s/-C - /-c /
")
if [ -n "${NVM_AUTH_HEADER:-}" ]; then
ARGS="${ARGS} --header \"${NVM_AUTH_HEADER}\""
fi
# shellcheck disable=SC2086
eval wget $ARGS
fi
}
nvm_sanitize_auth_header() {
# Remove potentially dangerous characters
nvm_echo "$1" | command sed 's/[^a-zA-Z0-9:;_. -]//g'
}
nvm_has_system_node() {
[ "$(nvm deactivate >/dev/null 2>&1 && command -v node)" != '' ]
}
nvm_has_system_iojs() {
[ "$(nvm deactivate >/dev/null 2>&1 && command -v iojs)" != '' ]
}
nvm_is_version_installed() {
if [ -z "${1-}" ]; then
return 1
fi
local NVM_NODE_BINARY
NVM_NODE_BINARY='node'
if [ "_$(nvm_get_os)" = '_win' ]; then
NVM_NODE_BINARY='node.exe'
fi
if [ -x "$(nvm_version_path "$1" 2>/dev/null)/bin/${NVM_NODE_BINARY}" ]; then
return 0
fi
return 1
}
nvm_print_npm_version() {
if nvm_has "npm"; then
local NPM_VERSION
NPM_VERSION="$(npm --version 2>/dev/null)"
if [ -n "${NPM_VERSION}" ]; then
command printf " (npm v${NPM_VERSION})"
fi
fi
}
nvm_install_latest_npm() {
nvm_echo 'Attempting to upgrade to the latest working version of npm...'
local NODE_VERSION
NODE_VERSION="$(nvm_strip_iojs_prefix "$(nvm_ls_current)")"
local NPM_VERSION
NPM_VERSION="$(npm --version 2>/dev/null)"
if [ "${NODE_VERSION}" = 'system' ]; then
NODE_VERSION="$(node --version)"
elif [ "${NODE_VERSION}" = 'none' ]; then
nvm_echo "Detected node version ${NODE_VERSION}, npm version v${NPM_VERSION}"
NODE_VERSION=''
fi
if [ -z "${NODE_VERSION}" ]; then
nvm_err 'Unable to obtain node version.'
return 1
fi
if [ -z "${NPM_VERSION}" ]; then
nvm_err 'Unable to obtain npm version.'
return 2
fi
local NVM_NPM_CMD
NVM_NPM_CMD='npm'
if [ "${NVM_DEBUG-}" = 1 ]; then
nvm_echo "Detected node version ${NODE_VERSION}, npm version v${NPM_VERSION}"
NVM_NPM_CMD='nvm_echo npm'
fi
local NVM_IS_0_6
NVM_IS_0_6=0
if nvm_version_greater_than_or_equal_to "${NODE_VERSION}" 0.6.0 && nvm_version_greater 0.7.0 "${NODE_VERSION}"; then
NVM_IS_0_6=1
fi
local NVM_IS_0_9
NVM_IS_0_9=0
if nvm_version_greater_than_or_equal_to "${NODE_VERSION}" 0.9.0 && nvm_version_greater 0.10.0 "${NODE_VERSION}"; then
NVM_IS_0_9=1
fi
if [ $NVM_IS_0_6 -eq 1 ]; then
nvm_echo '* `node` v0.6.x can only upgrade to `npm` v1.3.x'
$NVM_NPM_CMD install -g npm@1.3
elif [ $NVM_IS_0_9 -eq 0 ]; then
# node 0.9 breaks here, for some reason
if nvm_version_greater_than_or_equal_to "${NPM_VERSION}" 1.0.0 && nvm_version_greater 2.0.0 "${NPM_VERSION}"; then
nvm_echo '* `npm` v1.x needs to first jump to `npm` v1.4.28 to be able to upgrade further'
$NVM_NPM_CMD install -g npm@1.4.28
elif nvm_version_greater_than_or_equal_to "${NPM_VERSION}" 2.0.0 && nvm_version_greater 3.0.0 "${NPM_VERSION}"; then
nvm_echo '* `npm` v2.x needs to first jump to the latest v2 to be able to upgrade further'
$NVM_NPM_CMD install -g npm@2
fi
fi
if [ $NVM_IS_0_9 -eq 1 ] || [ $NVM_IS_0_6 -eq 1 ]; then
nvm_echo '* node v0.6 and v0.9 are unable to upgrade further'
elif nvm_version_greater 1.1.0 "${NODE_VERSION}"; then
nvm_echo '* `npm` v4.5.x is the last version that works on `node` versions < v1.1.0'
$NVM_NPM_CMD install -g npm@4.5
elif nvm_version_greater 4.0.0 "${NODE_VERSION}"; then
nvm_echo '* `npm` v5 and higher do not work on `node` versions below v4.0.0'
$NVM_NPM_CMD install -g npm@4
elif [ $NVM_IS_0_9 -eq 0 ] && [ $NVM_IS_0_6 -eq 0 ]; then
local NVM_IS_4_4_OR_BELOW
NVM_IS_4_4_OR_BELOW=0
if nvm_version_greater 4.5.0 "${NODE_VERSION}"; then
NVM_IS_4_4_OR_BELOW=1
fi
local NVM_IS_5_OR_ABOVE
NVM_IS_5_OR_ABOVE=0
if [ $NVM_IS_4_4_OR_BELOW -eq 0 ] && nvm_version_greater_than_or_equal_to "${NODE_VERSION}" 5.0.0; then
NVM_IS_5_OR_ABOVE=1
fi
local NVM_IS_6_OR_ABOVE
NVM_IS_6_OR_ABOVE=0
local NVM_IS_6_2_OR_ABOVE
NVM_IS_6_2_OR_ABOVE=0
if [ $NVM_IS_5_OR_ABOVE -eq 1 ] && nvm_version_greater_than_or_equal_to "${NODE_VERSION}" 6.0.0; then
NVM_IS_6_OR_ABOVE=1
if nvm_version_greater_than_or_equal_to "${NODE_VERSION}" 6.2.0; then
NVM_IS_6_2_OR_ABOVE=1
fi
fi
local NVM_IS_9_OR_ABOVE
NVM_IS_9_OR_ABOVE=0
local NVM_IS_9_3_OR_ABOVE
NVM_IS_9_3_OR_ABOVE=0
if [ $NVM_IS_6_2_OR_ABOVE -eq 1 ] && nvm_version_greater_than_or_equal_to "${NODE_VERSION}" 9.0.0; then
NVM_IS_9_OR_ABOVE=1
if nvm_version_greater_than_or_equal_to "${NODE_VERSION}" 9.3.0; then
NVM_IS_9_3_OR_ABOVE=1
fi
fi
local NVM_IS_10_OR_ABOVE
NVM_IS_10_OR_ABOVE=0
if [ $NVM_IS_9_3_OR_ABOVE -eq 1 ] && nvm_version_greater_than_or_equal_to "${NODE_VERSION}" 10.0.0; then
NVM_IS_10_OR_ABOVE=1
fi
local NVM_IS_12_LTS_OR_ABOVE
NVM_IS_12_LTS_OR_ABOVE=0
if [ $NVM_IS_10_OR_ABOVE -eq 1 ] && nvm_version_greater_than_or_equal_to "${NODE_VERSION}" 12.13.0; then
NVM_IS_12_LTS_OR_ABOVE=1
fi
local NVM_IS_13_OR_ABOVE
NVM_IS_13_OR_ABOVE=0
if [ $NVM_IS_12_LTS_OR_ABOVE -eq 1 ] && nvm_version_greater_than_or_equal_to "${NODE_VERSION}" 13.0.0; then
NVM_IS_13_OR_ABOVE=1
fi
local NVM_IS_14_LTS_OR_ABOVE
NVM_IS_14_LTS_OR_ABOVE=0
if [ $NVM_IS_13_OR_ABOVE -eq 1 ] && nvm_version_greater_than_or_equal_to "${NODE_VERSION}" 14.15.0; then
NVM_IS_14_LTS_OR_ABOVE=1
fi
local NVM_IS_14_17_OR_ABOVE
NVM_IS_14_17_OR_ABOVE=0
if [ $NVM_IS_14_LTS_OR_ABOVE -eq 1 ] && nvm_version_greater_than_or_equal_to "${NODE_VERSION}" 14.17.0; then
NVM_IS_14_17_OR_ABOVE=1
fi
local NVM_IS_15_OR_ABOVE
NVM_IS_15_OR_ABOVE=0
if [ $NVM_IS_14_LTS_OR_ABOVE -eq 1 ] && nvm_version_greater_than_or_equal_to "${NODE_VERSION}" 15.0.0; then
NVM_IS_15_OR_ABOVE=1
fi
local NVM_IS_16_OR_ABOVE
NVM_IS_16_OR_ABOVE=0
if [ $NVM_IS_15_OR_ABOVE -eq 1 ] && nvm_version_greater_than_or_equal_to "${NODE_VERSION}" 16.0.0; then
NVM_IS_16_OR_ABOVE=1
fi
local NVM_IS_16_LTS_OR_ABOVE
NVM_IS_16_LTS_OR_ABOVE=0
if [ $NVM_IS_16_OR_ABOVE -eq 1 ] && nvm_version_greater_than_or_equal_to "${NODE_VERSION}" 16.13.0; then
NVM_IS_16_LTS_OR_ABOVE=1
fi
local NVM_IS_17_OR_ABOVE
NVM_IS_17_OR_ABOVE=0
if [ $NVM_IS_16_LTS_OR_ABOVE -eq 1 ] && nvm_version_greater_than_or_equal_to "${NODE_VERSION}" 17.0.0; then
NVM_IS_17_OR_ABOVE=1
fi
local NVM_IS_18_OR_ABOVE
NVM_IS_18_OR_ABOVE=0
if [ $NVM_IS_17_OR_ABOVE -eq 1 ] && nvm_version_greater_than_or_equal_to "${NODE_VERSION}" 18.0.0; then
NVM_IS_18_OR_ABOVE=1
fi
local NVM_IS_18_17_OR_ABOVE
NVM_IS_18_17_OR_ABOVE=0
if [ $NVM_IS_18_OR_ABOVE -eq 1 ] && nvm_version_greater_than_or_equal_to "${NODE_VERSION}" 18.17.0; then
NVM_IS_18_17_OR_ABOVE=1
fi
local NVM_IS_19_OR_ABOVE
NVM_IS_19_OR_ABOVE=0
if [ $NVM_IS_18_17_OR_ABOVE -eq 1 ] && nvm_version_greater_than_or_equal_to "${NODE_VERSION}" 19.0.0; then
NVM_IS_19_OR_ABOVE=1
fi
local NVM_IS_20_5_OR_ABOVE
NVM_IS_20_5_OR_ABOVE=0
if [ $NVM_IS_19_OR_ABOVE -eq 1 ] && nvm_version_greater_than_or_equal_to "${NODE_VERSION}" 20.5.0; then
NVM_IS_20_5_OR_ABOVE=1
fi
local NVM_IS_20_17_or_ABOVE
NVM_IS_20_17_or_ABOVE=0
if [ $NVM_IS_20_5_OR_ABOVE -eq 1 ] && nvm_version_greater 20.17.0 "${NODE_VERSION}"; then
NVM_IS_20_17_or_ABOVE=1
fi
local NVM_IS_21_OR_ABOVE
NVM_IS_21_OR_ABOVE=0
if [ $NVM_IS_20_17_or_ABOVE -eq 1 ] && nvm_version_greater 21.0.0 "${NODE_VERSION}"; then
NVM_IS_21_OR_ABOVE=1
fi
local NVM_IS_22_9_OR_ABOVE
NVM_IS_22_9_OR_ABOVE=0
if [ $NVM_IS_21_OR_ABOVE -eq 1 ] && nvm_version_greater 22.9.0 "${NODE_VERSION}"; then
NVM_IS_22_9_OR_ABOVE=1
fi
if [ $NVM_IS_4_4_OR_BELOW -eq 1 ] || {
[ $NVM_IS_5_OR_ABOVE -eq 1 ] && nvm_version_greater 5.10.0 "${NODE_VERSION}"; \
}; then
nvm_echo '* `npm` `v5.3.x` is the last version that works on `node` 4.x versions below v4.4, or 5.x versions below v5.10, due to `Buffer.alloc`'
$NVM_NPM_CMD install -g npm@5.3
elif [ $NVM_IS_4_4_OR_BELOW -eq 0 ] && nvm_version_greater 4.7.0 "${NODE_VERSION}"; then
nvm_echo '* `npm` `v5.4.1` is the last version that works on `node` `v4.5` and `v4.6`'
$NVM_NPM_CMD install -g npm@5.4.1
elif [ $NVM_IS_6_OR_ABOVE -eq 0 ]; then
nvm_echo '* `npm` `v5.x` is the last version that works on `node` below `v6.0.0`'
$NVM_NPM_CMD install -g npm@5
elif \
{ [ $NVM_IS_6_OR_ABOVE -eq 1 ] && [ $NVM_IS_6_2_OR_ABOVE -eq 0 ]; } \
|| { [ $NVM_IS_9_OR_ABOVE -eq 1 ] && [ $NVM_IS_9_3_OR_ABOVE -eq 0 ]; } \
; then
nvm_echo '* `npm` `v6.9` is the last version that works on `node` `v6.0.x`, `v6.1.x`, `v9.0.x`, `v9.1.x`, or `v9.2.x`'
$NVM_NPM_CMD install -g npm@6.9
elif [ $NVM_IS_10_OR_ABOVE -eq 0 ]; then
if nvm_version_greater 4.4.4 "${NPM_VERSION}"; then
nvm_echo '* `npm` `v4.4.4` or later is required to install npm v6.14.18'
$NVM_NPM_CMD install -g npm@4
fi
nvm_echo '* `npm` `v6.x` is the last version that works on `node` below `v10.0.0`'
$NVM_NPM_CMD install -g npm@6
elif \
[ $NVM_IS_12_LTS_OR_ABOVE -eq 0 ] \
|| { [ $NVM_IS_13_OR_ABOVE -eq 1 ] && [ $NVM_IS_14_LTS_OR_ABOVE -eq 0 ]; } \
|| { [ $NVM_IS_15_OR_ABOVE -eq 1 ] && [ $NVM_IS_16_OR_ABOVE -eq 0 ]; } \
; then
nvm_echo '* `npm` `v7.x` is the last version that works on `node` `v13`, `v15`, below `v12.13`, or `v14.0` - `v14.15`'
$NVM_NPM_CMD install -g npm@7
elif \
{ [ $NVM_IS_12_LTS_OR_ABOVE -eq 1 ] && [ $NVM_IS_13_OR_ABOVE -eq 0 ]; } \
|| { [ $NVM_IS_14_LTS_OR_ABOVE -eq 1 ] && [ $NVM_IS_14_17_OR_ABOVE -eq 0 ]; } \
|| { [ $NVM_IS_16_OR_ABOVE -eq 1 ] && [ $NVM_IS_16_LTS_OR_ABOVE -eq 0 ]; } \
|| { [ $NVM_IS_17_OR_ABOVE -eq 1 ] && [ $NVM_IS_18_OR_ABOVE -eq 0 ]; } \
; then
nvm_echo '* `npm` `v8.6` is the last version that works on `node` `v12`, `v14.13` - `v14.16`, or `v16.0` - `v16.12`'
# ^8.7 breaks `npm ls` on file: deps
$NVM_NPM_CMD install -g npm@8.6
elif \
[ $NVM_IS_18_17_OR_ABOVE -eq 0 ] \
|| { [ $NVM_IS_19_OR_ABOVE -eq 1 ] && [ $NVM_IS_20_5_OR_ABOVE -eq 0 ]; } \
; then
# TODO: 10.8.3 can run on 16.20.2?? https://github.com/nodejs/Release/issues/884#issuecomment-2558077691
nvm_echo '* `npm` `v9.x` is the last version that works on `node` `< v18.17`, `v19`, or `v20.0` - `v20.4`'
$NVM_NPM_CMD install -g npm@9
elif \
[ $NVM_IS_20_17_or_ABOVE -eq 0 ] \
|| { [ $NVM_IS_21_OR_ABOVE -eq 1 ] && [ $NVM_IS_22_9_OR_ABOVE -eq 0 ]; } \
; then
nvm_echo '* `npm` `v10.x` is the last version that works on `node` `< v20.17`, `v21`, or `v22.0` - `v22.8`'
$NVM_NPM_CMD install -g npm@10
else
nvm_echo '* Installing latest `npm`; if this does not work on your node version, please report a bug!'
$NVM_NPM_CMD install -g npm
fi
fi
nvm_echo "* npm upgraded to: v$(npm --version 2>/dev/null)"
}
# Make zsh glob matching behave same as bash
# This fixes the "zsh: no matches found" errors
if [ -z "${NVM_CD_FLAGS-}" ]; then
export NVM_CD_FLAGS=''
fi
if nvm_is_zsh; then
NVM_CD_FLAGS="-q"
fi
# Auto detect the NVM_DIR when not set
if [ -z "${NVM_DIR-}" ]; then
# shellcheck disable=SC2128
if [ -n "${BASH_SOURCE-}" ]; then
NVM_SCRIPT_SOURCE="${BASH_SOURCE}"
fi
# shellcheck disable=SC2086
NVM_DIR="$(nvm_cd ${NVM_CD_FLAGS} "$(dirname "${NVM_SCRIPT_SOURCE:-$0}")" >/dev/null && \pwd)"
export NVM_DIR
else
# https://unix.stackexchange.com/a/198289
case $NVM_DIR in
*[!/]*/)
NVM_DIR="${NVM_DIR%"${NVM_DIR##*[!/]}"}"
export NVM_DIR
nvm_err "Warning: \$NVM_DIR should not have trailing slashes"
;;
esac
fi
unset NVM_SCRIPT_SOURCE 2>/dev/null
nvm_tree_contains_path() {
local tree
tree="${1-}"
local node_path
node_path="${2-}"
if [ "@${tree}@" = "@@" ] || [ "@${node_path}@" = "@@" ]; then
nvm_err "both the tree and the node path are required"
return 2
fi
local previous_pathdir
previous_pathdir="${node_path}"
local pathdir
pathdir=$(dirname "${previous_pathdir}")
while [ "${pathdir}" != '' ] && [ "${pathdir}" != '.' ] && [ "${pathdir}" != '/' ] &&
[ "${pathdir}" != "${tree}" ] && [ "${pathdir}" != "${previous_pathdir}" ]; do
previous_pathdir="${pathdir}"
pathdir=$(dirname "${previous_pathdir}")
done
[ "${pathdir}" = "${tree}" ]
}
nvm_find_project_dir() {
local path_
path_="${PWD}"
while [ "${path_}" != "" ] && [ "${path_}" != '.' ] && [ ! -f "${path_}/package.json" ] && [ ! -d "${path_}/node_modules" ]; do
path_=${path_%/*}
done
nvm_echo "${path_}"
}
# Traverse up in directory tree to find containing folder
nvm_find_up() {
local path_
path_="${PWD}"
while [ "${path_}" != "" ] && [ "${path_}" != '.' ] && [ ! -f "${path_}/${1-}" ]; do
path_=${path_%/*}
done
nvm_echo "${path_}"
}
nvm_find_nvmrc() {
local dir
dir="$(nvm_find_up '.nvmrc')"
if [ -e "${dir}/.nvmrc" ]; then
nvm_echo "${dir}/.nvmrc"
fi
}
nvm_nvmrc_invalid_msg() {
local error_text
error_text="invalid .nvmrc!
all non-commented content (anything after # is a comment) must be either:
- a single bare nvm-recognized version-ish
- or, multiple distinct key-value pairs, each key/value separated by a single equals sign (=)
additionally, a single bare nvm-recognized version-ish must be present (after stripping comments)."
local warn_text
warn_text="non-commented content parsed:
${1}"
nvm_err "$(nvm_wrap_with_color_code 'r' "${error_text}")
$(nvm_wrap_with_color_code 'y' "${warn_text}")"
}
nvm_process_nvmrc() {
local NVMRC_PATH
NVMRC_PATH="$1"
local lines
lines=$(command sed 's/#.*//' "$NVMRC_PATH" | command sed 's/^[[:space:]]*//;s/[[:space:]]*$//' | nvm_grep -v '^$')
if [ -z "$lines" ]; then
nvm_nvmrc_invalid_msg "${lines}"
return 1
fi
# Initialize key-value storage
local keys
keys=''
local values
values=''
local unpaired_line
unpaired_line=''
while IFS= read -r line; do
if [ -z "${line}" ]; then
continue
elif [ -z "${line%%=*}" ]; then
if [ -n "${unpaired_line}" ]; then
nvm_nvmrc_invalid_msg "${lines}"
return 1
fi
unpaired_line="${line}"
elif case "$line" in *'='*) true;; *) false;; esac; then
key="${line%%=*}"
value="${line#*=}"
# Trim whitespace around key and value
key=$(nvm_echo "${key}" | command sed 's/^[[:space:]]*//;s/[[:space:]]*$//')
value=$(nvm_echo "${value}" | command sed 's/^[[:space:]]*//;s/[[:space:]]*$//')
# Check for invalid key "node"
if [ "${key}" = 'node' ]; then
nvm_nvmrc_invalid_msg "${lines}"
return 1
fi
# Check for duplicate keys
if nvm_echo "${keys}" | nvm_grep -q -E "(^| )${key}( |$)"; then
nvm_nvmrc_invalid_msg "${lines}"
return 1
fi
keys="${keys} ${key}"
values="${values} ${value}"
else
if [ -n "${unpaired_line}" ]; then
nvm_nvmrc_invalid_msg "${lines}"
return 1
fi
unpaired_line="${line}"
fi
done <<EOF
$lines
EOF
if [ -z "${unpaired_line}" ]; then
nvm_nvmrc_invalid_msg "${lines}"
return 1
fi
nvm_echo "${unpaired_line}"
}
nvm_rc_version() {
export NVM_RC_VERSION=''
local NVMRC_PATH
NVMRC_PATH="$(nvm_find_nvmrc)"
if [ ! -e "${NVMRC_PATH}" ]; then
if [ "${NVM_SILENT:-0}" -ne 1 ]; then
nvm_err "No .nvmrc file found"
fi
return 1
fi
if ! NVM_RC_VERSION="$(nvm_process_nvmrc "${NVMRC_PATH}")"; then
return 1
fi
if [ -z "${NVM_RC_VERSION}" ]; then
if [ "${NVM_SILENT:-0}" -ne 1 ]; then
nvm_err "Warning: empty .nvmrc file found at \"${NVMRC_PATH}\""
fi
return 2
fi
if [ "${NVM_SILENT:-0}" -ne 1 ]; then
nvm_echo "Found '${NVMRC_PATH}' with version <${NVM_RC_VERSION}>"
fi
}
nvm_clang_version() {
clang --version | command awk '{ if ($2 == "version") print $3; else if ($3 == "version") print $4 }' | command sed 's/-.*$//g'
}
nvm_curl_version() {
curl -V | command awk '{ if ($1 == "curl") print $2 }' | command sed 's/-.*$//g'
}
nvm_version_greater() {
command awk 'BEGIN {
if (ARGV[1] == "" || ARGV[2] == "") exit(1)
split(ARGV[1], a, /\./);
split(ARGV[2], b, /\./);
for (i=1; i<=3; i++) {
if (a[i] && a[i] !~ /^[0-9]+$/) exit(2);
if (b[i] && b[i] !~ /^[0-9]+$/) { exit(0); }
if (a[i] < b[i]) exit(3);
else if (a[i] > b[i]) exit(0);
}
exit(4)
}' "${1#v}" "${2#v}"
}
nvm_version_greater_than_or_equal_to() {
command awk 'BEGIN {
if (ARGV[1] == "" || ARGV[2] == "") exit(1)
split(ARGV[1], a, /\./);
split(ARGV[2], b, /\./);
for (i=1; i<=3; i++) {
if (a[i] && a[i] !~ /^[0-9]+$/) exit(2);
if (a[i] < b[i]) exit(3);
else if (a[i] > b[i]) exit(0);
}
exit(0)
}' "${1#v}" "${2#v}"
}
nvm_version_dir() {
local NVM_WHICH_DIR
NVM_WHICH_DIR="${1-}"
if [ -z "${NVM_WHICH_DIR}" ] || [ "${NVM_WHICH_DIR}" = "new" ]; then
nvm_echo "${NVM_DIR}/versions/node"
elif [ "_${NVM_WHICH_DIR}" = "_iojs" ]; then
nvm_echo "${NVM_DIR}/versions/io.js"
elif [ "_${NVM_WHICH_DIR}" = "_old" ]; then
nvm_echo "${NVM_DIR}"
else
nvm_err 'unknown version dir'
return 3
fi
}
nvm_alias_path() {
nvm_echo "$(nvm_version_dir old)/alias"
}
nvm_version_path() {
local VERSION
VERSION="${1-}"
if [ -z "${VERSION}" ]; then
nvm_err 'version is required'
return 3
elif nvm_is_iojs_version "${VERSION}"; then
nvm_echo "$(nvm_version_dir iojs)/$(nvm_strip_iojs_prefix "${VERSION}")"
elif nvm_version_greater 0.12.0 "${VERSION}"; then
nvm_echo "$(nvm_version_dir old)/${VERSION}"
else
nvm_echo "$(nvm_version_dir new)/${VERSION}"
fi
}
nvm_ensure_version_installed() {
local PROVIDED_VERSION
PROVIDED_VERSION="${1-}"
local IS_VERSION_FROM_NVMRC
IS_VERSION_FROM_NVMRC="${2-}"
if [ "${PROVIDED_VERSION}" = 'system' ]; then
if nvm_has_system_iojs || nvm_has_system_node; then
return 0
fi
nvm_err "N/A: no system version of node/io.js is installed."
return 1
fi
local LOCAL_VERSION
local EXIT_CODE
LOCAL_VERSION="$(nvm_version "${PROVIDED_VERSION}")"
EXIT_CODE="$?"
local NVM_VERSION_DIR
if [ "${EXIT_CODE}" != "0" ] || ! nvm_is_version_installed "${LOCAL_VERSION}"; then
if VERSION="$(nvm_resolve_alias "${PROVIDED_VERSION}")"; then
nvm_err "N/A: version \"${PROVIDED_VERSION} -> ${VERSION}\" is not yet installed."
else
local PREFIXED_VERSION
PREFIXED_VERSION="$(nvm_ensure_version_prefix "${PROVIDED_VERSION}")"
nvm_err "N/A: version \"${PREFIXED_VERSION:-$PROVIDED_VERSION}\" is not yet installed."
fi
nvm_err ""
if [ "${PROVIDED_VERSION}" = 'lts' ]; then
nvm_err '`lts` is not an alias - you may need to run `nvm install --lts` to install and `nvm use --lts` to use it.'
elif [ "${IS_VERSION_FROM_NVMRC}" != '1' ]; then
nvm_err "You need to run \`nvm install ${PROVIDED_VERSION}\` to install and use it."
else
nvm_err 'You need to run `nvm install` to install and use the node version specified in `.nvmrc`.'
fi
return 1
fi
}
# Expand a version using the version cache
nvm_version() {
local PATTERN
PATTERN="${1-}"
local VERSION
# The default version is the current one
if [ -z "${PATTERN}" ]; then
PATTERN='current'
fi
if [ "${PATTERN}" = "current" ]; then
nvm_ls_current
return $?
fi
local NVM_NODE_PREFIX
NVM_NODE_PREFIX="$(nvm_node_prefix)"
case "_${PATTERN}" in
"_${NVM_NODE_PREFIX}" | "_${NVM_NODE_PREFIX}-")
PATTERN="stable"
;;
esac
VERSION="$(nvm_ls "${PATTERN}" | command tail -1)"
if [ -z "${VERSION}" ] || [ "_${VERSION}" = "_N/A" ]; then
nvm_echo "N/A"
return 3
fi
nvm_echo "${VERSION}"
}
nvm_remote_version() {
local PATTERN
PATTERN="${1-}"
local VERSION
if nvm_validate_implicit_alias "${PATTERN}" 2>/dev/null; then
case "${PATTERN}" in
"$(nvm_iojs_prefix)")
VERSION="$(NVM_LTS="${NVM_LTS-}" nvm_ls_remote_iojs | command tail -1)" &&:
;;
*)
VERSION="$(NVM_LTS="${NVM_LTS-}" nvm_ls_remote "${PATTERN}")" &&:
;;
esac
else
VERSION="$(NVM_LTS="${NVM_LTS-}" nvm_remote_versions "${PATTERN}" | command tail -1)"
fi
if [ -n "${NVM_VERSION_ONLY-}" ]; then
command awk 'BEGIN {
n = split(ARGV[1], a);
print a[1]
}' "${VERSION}"
else
nvm_echo "${VERSION}"
fi
if [ "${VERSION}" = 'N/A' ]; then
return 3
fi
}
nvm_remote_versions() {
local NVM_IOJS_PREFIX
NVM_IOJS_PREFIX="$(nvm_iojs_prefix)"
local NVM_NODE_PREFIX
NVM_NODE_PREFIX="$(nvm_node_prefix)"
local PATTERN
PATTERN="${1-}"
local NVM_FLAVOR
if [ -n "${NVM_LTS-}" ]; then
NVM_FLAVOR="${NVM_NODE_PREFIX}"
fi
case "${PATTERN}" in
"${NVM_IOJS_PREFIX}" | "io.js")
NVM_FLAVOR="${NVM_IOJS_PREFIX}"
unset PATTERN
;;
"${NVM_NODE_PREFIX}")
NVM_FLAVOR="${NVM_NODE_PREFIX}"
unset PATTERN
;;
esac
if nvm_validate_implicit_alias "${PATTERN-}" 2>/dev/null; then
nvm_err 'Implicit aliases are not supported in nvm_remote_versions.'
return 1
fi
local NVM_LS_REMOTE_EXIT_CODE
NVM_LS_REMOTE_EXIT_CODE=0
local NVM_LS_REMOTE_PRE_MERGED_OUTPUT
NVM_LS_REMOTE_PRE_MERGED_OUTPUT=''
local NVM_LS_REMOTE_POST_MERGED_OUTPUT
NVM_LS_REMOTE_POST_MERGED_OUTPUT=''
if [ -z "${NVM_FLAVOR-}" ] || [ "${NVM_FLAVOR-}" = "${NVM_NODE_PREFIX}" ]; then
local NVM_LS_REMOTE_OUTPUT
# extra space is needed here to avoid weird behavior when `nvm_ls_remote` ends in a `*`
NVM_LS_REMOTE_OUTPUT="$(NVM_LTS="${NVM_LTS-}" nvm_ls_remote "${PATTERN-}") " &&:
NVM_LS_REMOTE_EXIT_CODE=$?
# split output into two
NVM_LS_REMOTE_PRE_MERGED_OUTPUT="${NVM_LS_REMOTE_OUTPUT%%v4\.0\.0*}"
NVM_LS_REMOTE_POST_MERGED_OUTPUT="${NVM_LS_REMOTE_OUTPUT#"$NVM_LS_REMOTE_PRE_MERGED_OUTPUT"}"
fi
local NVM_LS_REMOTE_IOJS_EXIT_CODE
NVM_LS_REMOTE_IOJS_EXIT_CODE=0
local NVM_LS_REMOTE_IOJS_OUTPUT
NVM_LS_REMOTE_IOJS_OUTPUT=''
if [ -z "${NVM_LTS-}" ] && {
[ -z "${NVM_FLAVOR-}" ] || [ "${NVM_FLAVOR-}" = "${NVM_IOJS_PREFIX}" ];
}; then
NVM_LS_REMOTE_IOJS_OUTPUT=$(nvm_ls_remote_iojs "${PATTERN-}") &&:
NVM_LS_REMOTE_IOJS_EXIT_CODE=$?
fi
# the `sed` removes both blank lines, and only-whitespace lines (see "weird behavior" ~19 lines up)
VERSIONS="$(nvm_echo "${NVM_LS_REMOTE_PRE_MERGED_OUTPUT}
${NVM_LS_REMOTE_IOJS_OUTPUT}
${NVM_LS_REMOTE_POST_MERGED_OUTPUT}" | nvm_grep -v "N/A" | command sed '/^ *$/d')"
if [ -z "${VERSIONS}" ]; then
nvm_echo 'N/A'
return 3
fi
# the `sed` is to remove trailing whitespaces (see "weird behavior" ~25 lines up)
nvm_echo "${VERSIONS}" | command sed 's/ *$//g'
# shellcheck disable=SC2317
return $NVM_LS_REMOTE_EXIT_CODE || $NVM_LS_REMOTE_IOJS_EXIT_CODE
}
nvm_is_valid_version() {
if nvm_validate_implicit_alias "${1-}" 2>/dev/null; then
return 0
fi
case "${1-}" in
"$(nvm_iojs_prefix)" | \
"$(nvm_node_prefix)")
return 0
;;
*)
local VERSION
VERSION="$(nvm_strip_iojs_prefix "${1-}")"
nvm_version_greater_than_or_equal_to "${VERSION}" 0
;;
esac
}
nvm_normalize_version() {
command awk 'BEGIN {
split(ARGV[1], a, /\./);
printf "%d%06d%06d\n", a[1], a[2], a[3];
exit;
}' "${1#v}"
}
nvm_normalize_lts() {
local LTS
LTS="${1-}"
case "${LTS}" in
lts/-[123456789] | lts/-[123456789][0123456789]*)
local N
N="$(echo "${LTS}" | cut -d '-' -f 2)"
N=$((N+1))
# shellcheck disable=SC2181
if [ $? -ne 0 ]; then
nvm_echo "${LTS}"
return 0
fi
local NVM_ALIAS_DIR
NVM_ALIAS_DIR="$(nvm_alias_path)"
local RESULT
RESULT="$(command ls "${NVM_ALIAS_DIR}/lts" | command tail -n "${N}" | command head -n 1)"
if [ "${RESULT}" != '*' ]; then
nvm_echo "lts/${RESULT}"
else
nvm_err 'That many LTS releases do not exist yet.'
return 2
fi
;;
*)
if [ "${LTS}" != "$(echo "${LTS}" | command tr '[:upper:]' '[:lower:]')" ]; then
nvm_err 'LTS names must be lowercase'
return 3
fi
nvm_echo "${LTS}"
;;
esac
}
nvm_ensure_version_prefix() {
local NVM_VERSION
NVM_VERSION="$(nvm_strip_iojs_prefix "${1-}" | command sed -e 's/^\([0-9]\)/v\1/g')"
if nvm_is_iojs_version "${1-}"; then
nvm_add_iojs_prefix "${NVM_VERSION}"
else
nvm_echo "${NVM_VERSION}"
fi
}
nvm_format_version() {
local VERSION
VERSION="$(nvm_ensure_version_prefix "${1-}")"
local NUM_GROUPS
NUM_GROUPS="$(nvm_num_version_groups "${VERSION}")"
if [ "${NUM_GROUPS}" -lt 3 ]; then
nvm_format_version "${VERSION%.}.0"
else
nvm_echo "${VERSION}" | command cut -f1-3 -d.
fi
}
nvm_num_version_groups() {
local VERSION
VERSION="${1-}"
VERSION="${VERSION#v}"
VERSION="${VERSION%.}"
if [ -z "${VERSION}" ]; then
nvm_echo "0"
return
fi
local NVM_NUM_DOTS
NVM_NUM_DOTS=$(nvm_echo "${VERSION}" | command sed -e 's/[^\.]//g')
local NVM_NUM_GROUPS
NVM_NUM_GROUPS=".${NVM_NUM_DOTS}" # add extra dot, since it's (n - 1) dots at this point
nvm_echo "${#NVM_NUM_GROUPS}"
}
nvm_strip_path() {
if [ -z "${NVM_DIR-}" ]; then
nvm_err '${NVM_DIR} not set!'
return 1
fi
command printf %s "${1-}" | command awk -v NVM_DIR="${NVM_DIR}" -v RS=: '
index($0, NVM_DIR) == 1 {
path = substr($0, length(NVM_DIR) + 1)
if (path ~ "^(/versions/[^/]*)?/[^/]*'"${2-}"'.*$") { next }
}
# The final RT will contain a colon if the input has a trailing colon, or a null string otherwise
{ printf "%s%s", sep, $0; sep=RS } END { printf "%s", RT }'
}
nvm_change_path() {
# if there’s no initial path, just return the supplementary path
if [ -z "${1-}" ]; then
nvm_echo "${3-}${2-}"
# if the initial path doesn’t contain an nvm path, prepend the supplementary
# path
elif ! nvm_echo "${1-}" | nvm_grep -q "${NVM_DIR}/[^/]*${2-}" \
&& ! nvm_echo "${1-}" | nvm_grep -q "${NVM_DIR}/versions/[^/]*/[^/]*${2-}"; then
nvm_echo "${3-}${2-}:${1-}"
# if the initial path contains BOTH an nvm path (checked for above) and
# that nvm path is preceded by a system binary path, just prepend the
# supplementary path instead of replacing it.
# https://github.com/nvm-sh/nvm/issues/1652#issuecomment-342571223
elif nvm_echo "${1-}" | nvm_grep -Eq "(^|:)(/usr(/local)?)?${2-}:.*${NVM_DIR}/[^/]*${2-}" \
|| nvm_echo "${1-}" | nvm_grep -Eq "(^|:)(/usr(/local)?)?${2-}:.*${NVM_DIR}/versions/[^/]*/[^/]*${2-}"; then
nvm_echo "${3-}${2-}:${1-}"
# use sed to replace the existing nvm path with the supplementary path. This
# preserves the order of the path.
else
nvm_echo "${1-}" | command sed \