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#!/usr/bin/env bash
# -*- coding: utf-8; mode: sh indent-tabs-mode: nil -*-
# SPDX-License-Identifier: AGPL-3.0-or-later
#
# Tools to install and maintain NVM versions manager for Node.js
#
# [1] https://github.com/nvm-sh/nvm
# https://github.com/koalaman/shellcheck/issues/356#issuecomment-853515285
# shellcheck source=utils/lib.sh
. /dev/null
declare main_cmd
# configure nvm environment
# -------------------------
NVM_LOCAL_FOLDER=.nvm
[[ -z "${NVM_GIT_URL}" ]] && NVM_GIT_URL="https://github.com/nvm-sh/nvm.git"
[[ -z "${NVM_MIN_NODE_VER}" ]] && NVM_MIN_NODE_VER="16.13.0"
# initalize nvm environment
# -------------------------
nvm.env() {
source "${NVM_DIR}/nvm.sh"
source "${NVM_DIR}/bash_completion"
[ "$VERBOSE" = "1" ] && info_msg "sourced NVM environment from ${NVM_DIR}"
}
nvm.is_installed() {
# is true if NVM is installed / in $HOME or even in <repo-root>/.nvm
[[ -f "${NVM_DIR}/nvm.sh" ]]
}
if [[ -z "${NVM_DIR}" ]]; then
# nvm is not pre-intalled in $HOME. Prepare for using nvm from <repo-root>
NVM_DIR="$(git rev-parse --show-toplevel)/${NVM_LOCAL_FOLDER}"
fi
export NVM_DIR
if nvm.is_installed; then
nvm.env
else
# if nvm is not installed, use this function as a wrapper
nvm() {
nvm.ensure
nvm "$@"
}
fi
# implement nvm functions
# -----------------------
nvm.is_local() {
# is true if NVM is installed in <repo-root>/.nvm
[ "${NVM_DIR}" = "$(git rev-parse --show-toplevel)/${NVM_LOCAL_FOLDER}" ]
}
nvm.min_node() {
# usage: nvm.min_node 16.3.0
#
# Is true if minimal Node.js version is installed.
local min_v
local node_v
local higher_v
if ! command -v node >/dev/null; then
warn_msg "Node.js is not yet installed"
return 42
fi
min_v="${1}"
node_v="$(node --version)"
node_v="${node_v:1}" # remove 'v' from 'v16.3.0'
if ! [ "${min_v}" = "${node_v}" ]; then
higher_v="$(echo -e "$min_v\n${node_v}" | sort -Vr | head -1)"
if [ "${min_v}" = "${higher_v}" ]; then
return 42
fi
fi
}
# implement nvm command line
# --------------------------
nvm.help() {
cat <<EOF
nvm.: use nvm (without dot) to execute nvm commands directly
install : install NVM locally at $(git rev-parse --show-toplevel)/${NVM_LOCAL_FOLDER}
clean : remove NVM installation
status : prompt some status informations about nvm & node
nodejs : install Node.js latest LTS
cmd ... : run command ... in NVM environment
bash : start bash interpreter with NVM environment sourced
EOF
}
nvm.install() {
local NVM_VERSION_TAG
info_msg "install (update) NVM at ${NVM_DIR}"
if [[ -d "${NVM_DIR}" ]] ; then
info_msg "already cloned at: ${NVM_DIR}"
pushd "${NVM_DIR}" &> /dev/null
git fetch --all | prefix_stdout " ${_Yellow}||${_creset} "
else
info_msg "clone: ${NVM_GIT_URL}"
git clone "${NVM_GIT_URL}" "${NVM_DIR}" 2>&1 | prefix_stdout " ${_Yellow}||${_creset} "
pushd "${NVM_DIR}" &> /dev/null
git config --local advice.detachedHead false
fi
NVM_VERSION_TAG="$(git rev-list --tags --max-count=1)"
NVM_VERSION_TAG="$(git describe --abbrev=0 --tags --match "v[0-9]*" "${NVM_VERSION_TAG}")"
info_msg "checkout ${NVM_VERSION_TAG}"
git checkout "${NVM_VERSION_TAG}" 2>&1 | prefix_stdout " ${_Yellow}||${_creset} "
popd &> /dev/null
if [ -f "${REPO_ROOT}/.nvm_packages" ]; then
cp "${REPO_ROOT}/.nvm_packages" "${NVM_DIR}/default-packages"
fi
nvm.env
}
nvm.clean() {
if ! nvm.is_installed; then
build_msg CLEAN "[NVM] not installed"
return
fi
if ! nvm.is_local; then
build_msg CLEAN "[NVM] can't remove nvm from ${NVM_DIR}"
return
fi
if [ -n "${NVM_DIR}" ]; then
build_msg CLEAN "[NVM] drop $(realpath --relative-to=. "${NVM_DIR}")/"
rm -rf "${NVM_DIR}"
fi
}
nvm.status() {
if command -v node >/dev/null; then
info_msg "Node.js is installed at $(command -v node)"
info_msg "Node.js is version $(node --version)"
if ! nvm.min_node "${NVM_MIN_NODE_VER}"; then
warn_msg "minimal Node.js version is ${NVM_MIN_NODE_VER}"
fi
else
warn_msg "Node.js is mot installed"
fi
if command -v npm >/dev/null; then
info_msg "npm is installed at $(command -v npm)"
info_msg "npm is version $(npm --version)"
else
warn_msg "npm is not installed"
fi
if nvm.is_installed; then
info_msg "NVM is installed at ${NVM_DIR}"
else
warn_msg "NVM is not installed"
info_msg "to install NVM and Node.js (LTS) use: ${main_cmd} nvm.nodejs"
fi
}
nvm.nodejs() {
nvm install
nvm.status
}
nvm.bash() {
nvm.ensure
bash --init-file <(cat "${NVM_DIR}/nvm.sh" "${NVM_DIR}/bash_completion")
}
nvm.cmd() {
nvm.ensure
"$@"
}
nvm.ensure() {
if ! nvm.is_installed; then
nvm.install
fi
}
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