yunohost/helpers/helpers.v2.1.d/nodejs

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#!/bin/bash
readonly N_INSTALL_DIR="/opt/node_n"
# N_PREFIX is the directory of n, it needs to be loaded as a environment variable.
export N_PREFIX="$N_INSTALL_DIR"
# [internal]
_ynh_load_nodejs_in_path_and_other_tweaks() {
# Get the absolute path of this version of node
nodejs_dir="$N_INSTALL_DIR/n/versions/node/$nodejs_version/bin"
# Load the path of this version of node in $PATH
if [[ :$PATH: != *":$nodejs_dir"* ]]; then
PATH="$nodejs_dir:$PATH"
fi
# Export PATH such that it's available through sudo -E / ynh_exec_as $app
export PATH
# This is in full lowercase such that it gets replaced in templates
path_with_nodejs="$PATH"
PATH_with_nodejs="$PATH"
# Prevent yet another Node and Corepack madness, with Corepack wanting the user to confirm download of Yarn
export COREPACK_ENABLE_DOWNLOAD_PROMPT=0
}
# Install a specific version of nodejs, using 'n'
#
# The installed version is defined by `$nodejs_version` which should be defined as global prior to calling this helper
#
# usage: ynh_nodejs_install
#
# `n` (Node version management) uses the `PATH` variable to store the path of the version of node it is going to use.
# That's how it changes the version
#
# The helper adds the appropriate, specific version of nodejs to the `$PATH` variable (which
# is preserved when calling ynh_exec_as_app). Also defines:
# - `$path_with_nodejs` to be used in the systemd config (`Environment="PATH=__PATH_WITH_NODEJS__"`)
# - `$nodejs_dir`, the directory containing the specific version of nodejs, which may be used in the systemd config too (e.g. `ExecStart=__NODEJS_DIR__/node foo bar`)
ynh_nodejs_install() {
# Use n, https://github.com/tj/n to manage the nodejs versions
[[ -n "${nodejs_version:-}" ]] || ynh_die "\$nodejs_version should be defined prior to calling ynh_nodejs_install"
# Create $N_INSTALL_DIR
mkdir --parents "$N_INSTALL_DIR"
# Load n path in PATH
CLEAR_PATH="$N_INSTALL_DIR/bin:$PATH"
# Remove /usr/local/bin in PATH in case of node prior installation
PATH=$(echo $CLEAR_PATH | sed 's@/usr/local/bin:@@')
# Move an existing node binary, to avoid to block n.
test -x /usr/bin/node && mv /usr/bin/node /usr/bin/node_n
test -x /usr/bin/npm && mv /usr/bin/npm /usr/bin/npm_n
# Install (or update if YunoHost vendor/ folder updated since last install) n
mkdir -p $N_INSTALL_DIR/bin/
cp "$YNH_HELPERS_DIR/vendor/n/n" $N_INSTALL_DIR/bin/n
# Tweak for n to understand it's installed in $N_PREFIX
ynh_replace --match="^N_PREFIX=\${N_PREFIX-.*}$" --replace="N_PREFIX=\${N_PREFIX-$N_PREFIX}" --file="$N_INSTALL_DIR/bin/n"
# Restore /usr/local/bin in PATH
PATH=$CLEAR_PATH
# And replace the old node binary.
test -x /usr/bin/node_n && mv /usr/bin/node_n /usr/bin/node
test -x /usr/bin/npm_n && mv /usr/bin/npm_n /usr/bin/npm
# Install the requested version of nodejs
uname=$(uname --machine)
if [[ $uname =~ aarch64 || $uname =~ arm64 ]]; then
n $nodejs_version --arch=arm64
else
n $nodejs_version
fi
# Find the last "real" version for this major version of node.
real_nodejs_version=$(find $N_INSTALL_DIR/n/versions/node/$nodejs_version* -maxdepth 0 | sort --version-sort | tail --lines=1)
real_nodejs_version=$(basename $real_nodejs_version)
# Create a symbolic link for this major version if the file doesn't already exist
if [ ! -e "$N_INSTALL_DIR/n/versions/node/$nodejs_version" ]; then
ln --symbolic --force --no-target-directory \
$N_INSTALL_DIR/n/versions/node/$real_nodejs_version \
$N_INSTALL_DIR/n/versions/node/$nodejs_version
fi
# Store the ID of this app and the version of node requested for it
echo "$YNH_APP_INSTANCE_NAME:$nodejs_version" | tee --append "$N_INSTALL_DIR/ynh_app_version"
# Store nodejs_version into the config of this app
ynh_app_setting_set --key=nodejs_version --value=$nodejs_version
_ynh_load_nodejs_in_path_and_other_tweaks
}
# Remove the version of node used by the app.
#
# usage: ynh_nodejs_remove
#
# This helper will check if another app uses the same version of node.
# - If not, this version of node will be removed.
# - If no other app uses node, n will be also removed.
ynh_nodejs_remove() {
[[ -n "${nodejs_version:-}" ]] || ynh_die "\$nodejs_version should be defined prior to calling ynh_nodejs_remove"
# Remove the line for this app
sed --in-place "/$YNH_APP_INSTANCE_NAME:$nodejs_version/d" "$N_INSTALL_DIR/ynh_app_version"
# If no other app uses this version of nodejs, remove it.
if ! grep --quiet "$nodejs_version" "$N_INSTALL_DIR/ynh_app_version"; then
$N_INSTALL_DIR/bin/n rm $nodejs_version
fi
# If no other app uses n, remove n
if [ ! -s "$N_INSTALL_DIR/ynh_app_version" ]; then
ynh_safe_rm "$N_INSTALL_DIR"
sed --in-place "/N_PREFIX/d" /root/.bashrc
fi
}