Update _common.sh

scripts/_common.sh

@@ -1,107 +1,159 @@
-#
+# INFOS
-# Common variables
+# n (Node version management) utilise la variable PATH pour stocker le path de la version de node à utiliser.
-#
+# C'est ainsi qu'il change de version
+# ynh_install_nodejs installe la version de nodejs demandée en argument, avec n
+# ynh_use_nodejs active une version de nodejs dans le script courant
+# 3 variables sont mises à disposition, et 2 sont stockées dans la config de l'app
+# - nodejs_path: Le chemin absolu de cette version de node
+# Utilisé pour des appels directs à node.
+# - nodejs_version: Simplement le numéro de version de nodejs pour cette application
+# - nodejs_use_version: Un alias pour charger une version de node dans le shell courant.
+# Utilisé pour démarrer un service ou un script qui utilise node ou npm
+# Dans ce cas, c'est $PATH qui contient le chemin de la version de node. Il doit être propagé sur les autres shell si nécessaire.
 
-APPNAME="haste"
+n_install_dir="/opt/node_n"
-app=${YNH_APP_INSTANCE_NAME:-haste}
+node_version_path="/opt/node_n/n/versions/node"
+# N_PREFIX est le dossier de n, il doit être chargé dans les variables d'environnement pour n.
+export N_PREFIX="$n_install_dir"
 
-# Haste version
+ynh_use_nodejs () {
-VERSION="master"
+	nodejs_version=$(ynh_app_setting_get $app nodejs_version)
 
-# set globals variables
+	load_n_path="[[ :$PATH: == *\":$n_install_dir/bin:\"* ]] || PATH=\"$n_install_dir/bin:$PATH\"; N_PREFIX="$n_install_dir""
-DESTDIR="/opt/"${app}
-DATA_PATH="/home/yunohost.app/"$app
 
-# Remote URL to fetch Haste tarball
+	nodejs_use_version="$n_install_dir/bin/n -q $nodejs_version"
-HASTE_URL="https://github.com/seejohnrun/haste-server/archive/"${VERSION}".zip"
 
-# Source YunoHost helpers
+	# "Load" a version of node
-source /usr/share/yunohost/helpers
+	eval $load_n_path; $nodejs_use_version
 
-#
+	# Get the absolute path of this version of node
-# Common helpers
+	nodejs_path="$(n bin $nodejs_version)"
-#
 
-check_or_install_npm() {
+	# Make an alias for node use
-  if ! dpkg -s npm | grep "installed" > /dev/null 2>&1 \
+	ynh_node_exec="eval $load_n_path; n use $nodejs_version"
-       || ! dpkg -s nodejs-legacy | grep "installed" > /dev/null 2>&1; then
-    sudo apt-get update
-    sudo apt-get install -y npm nodejs-legacy
-  fi
 }
 
-pre_inst_haste() {
+ynh_install_nodejs () {
-  # retrieve, extract, copy haste, add user if necessary
+	# Use n, https://github.com/tj/n to manage the nodejs versions
-  local TMPDIR=$(mktemp -d)
+	nodejs_version="$1"
-  local HASTE_SOURCE=$1
+	local n_install_script="https://git.io/n-install"
 
-  haste_tarball="/tmp/haste.zip"
+	# Create $n_install_dir
-  rm -f "$haste_tarball"
+	mkdir -p "$n_install_dir"
-  if [ "$HASTE_SOURCE" = "backup" ]
+
+	# Load n path in PATH
+	CLEAR_PATH="$n_install_dir/bin:$PATH"
+	# Remove /usr/local/bin in PATH in case of node has already setup.
+	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
+
+	# If n is not previously setup, install it
+	n --version > /dev/null 2>&1 || \
+	( echo "Installation of N - Node.js version management" >&2; \
+	curl -sL $n_install_script | N_PREFIX=$N_PREFIX bash -s -- -y - 2>&1 )
+
+	# Modify the default N_PREFIX in n script
+	ynh_replace_string "^N_PREFIX=\${N_PREFIX-.*}$" "N_PREFIX=\${N_PREFIX-$N_PREFIX}" "$n_install_dir/bin/n"
+
+	# Restore /usr/local/bin in PATH
+	PATH=$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
+	n $nodejs_version
+
+	# Find the last "real" version for this major version of node.
+	real_nodejs_version=$(find $node_version_path/$nodejs_version* -maxdepth 0 | sort --version-sort | tail --lines=1)
+	real_nodejs_version=$(basename $real_nodejs_version)
+
+	# Create a symbolic link for this major version. If the file doesn't already exist
+	if [ ! -e "$node_version_path/$nodejs_version" ]
 	then
-    # Restore the app and data files
+		ln --symbolic --force --no-target-directory $node_version_path/$real_nodejs_version $node_version_path/$nodejs_version
-    sudo cp -a ./www "$DESTDIR"
-    sudo cp -a ./data/. "$DATA_PATH"
-    # Restore directories and permissions
-    sudo chown -R "$app":"$app" "$DESTDIR" "$DATA_PATH"
-  else
-    wget -q -O "$haste_tarball" "$HASTE_URL" \
-      || ynh_die "Unable to download haste"
-    unzip -q "$haste_tarball" -d "$TMPDIR" \
-      || ynh_die "Unable to extract haste"
-    sudo rsync -a "$TMPDIR"/haste-server-master/* "$DESTDIR"
-  fi
-  rm -rf "$haste_tarball" "$TMPDIR"
-
-  # Add user if not exist
-  id -g "$app" &>/dev/null || sudo addgroup "$app" --system --quiet
-  id -u "$app" &>/dev/null || sudo adduser "$app" \
-      --ingroup "$app" --system --quiet --shell /bin/bash
-
-  # Configure init script
-  sudo cp ../conf/"$app".service /etc/systemd/system/
-  sudo systemctl daemon-reload
-  sudo systemctl enable "$app".service
-  }
-
-# Download, extract and install Haste to the given directory
-# usage: install_haste DESTDIR
-install_haste() {
-  local DOMAIN=$1
-  local YNH_PATH=$2
-  local IS_PUBLIC=$3
-
-  check_or_install_npm
-  pre_inst_haste none
-
-	# install haste
-	current_dir=$(pwd)
-	cd "$DESTDIR"
-	sudo npm install
-	cd $current_dir
-
-  sudo mkdir -p $DATA_PATH
-  sudo chown -R "$app":"$app" $DESTDIR $DATA_PATH
-
-  # Configure haste with config.js file
-  sudo cp ../conf/config.js "$DESTDIR"/config.js
-  sudo sed -i "s@YNH_DATA_PATH@$DATA_PATH@g" "$DESTDIR"/config.js
-
-  # Modify Nginx configuration file and copy it to Nginx conf directory
-  sed -i "s@PATHTOCHANGE@${YNH_PATH%/}@g" ../conf/nginx.conf
-  sudo cp ../conf/nginx.conf /etc/nginx/conf.d/$domain.d/"$app".conf
-
-  # If app is public, add url to SSOWat conf as skipped_uris
-  if [[ $IS_PUBLIC -eq 1 ]]; then
-    # unprotected_uris allows SSO credentials to be passed anyway.
-    ynh_app_setting_set "$app" unprotected_uris "/"
 	fi
 
-  # Reload services
+	# Store the ID of this app and the version of node requested for it
-  sudo systemctl reload nginx.service
+	echo "$YNH_APP_ID:$nodejs_version" | tee --append "$n_install_dir/ynh_app_version"
 
-  # install haste cli client
+	# Store nodejs_version into the config of this app
-  sed -i "s@YNH_HASTE_URL@${DOMAIN}${path%/}@g" ../conf/haste.sh
+	ynh_app_setting_set $app nodejs_version $nodejs_version
-  sudo cp ../conf/haste.sh /usr/bin/"$app"
+
-  sudo chmod +x /usr/bin/"$app"
+	# Build the update script and set the cronjob
+	ynh_cron_upgrade_node
+
+	ynh_use_nodejs
+}
+
+ynh_remove_nodejs () {
+	ynh_use_nodejs
+
+	# Remove the line for this app
+	sed --in-place "/$YNH_APP_ID:$nodejs_version/d" "$n_install_dir/ynh_app_version"
+
+	# If none another app uses this version of nodejs, remove it.
+	if ! grep --quiet "$nodejs_version" "$n_install_dir/ynh_app_version"
+	then
+		n rm $nodejs_version
+	fi
+
+	# If none another app uses n, remove n
+	if [ ! -s "$n_install_dir/ynh_app_version" ]
+	then
+		ynh_secure_remove "$n_install_dir"
+		ynh_secure_remove "/usr/local/n"
+		sed --in-place "/N_PREFIX/d" /root/.bashrc
+	fi
+}
+
+ynh_cron_upgrade_node () {
+	# Build the update script
+	cat > "$n_install_dir/node_update.sh" << EOF
+#!/bin/bash
+
+version_path="$node_version_path"
+n_install_dir="$n_install_dir"
+
+# Log the date
+date
+
+# List all real installed version of node
+all_real_version="\$(find \$version_path/* -maxdepth 0 -type d | sed "s@\$version_path/@@g")"
+
+# Keep only the major version number of each line
+all_real_version=\$(echo "\$all_real_version" | sed 's/\..*\$//')
+
+# Remove double entries
+all_real_version=\$(echo "\$all_real_version" | sort --unique)
+
+# Read each major version
+while read version
+do
+	echo "Update of the version \$version"
+	sudo \$n_install_dir/bin/n \$version
+
+	# Find the last "real" version for this major version of node.
+	real_nodejs_version=\$(find \$version_path/\$version* -maxdepth 0 | sort --version-sort | tail --lines=1)
+	real_nodejs_version=\$(basename \$real_nodejs_version)
+
+	# Update the symbolic link for this version
+	sudo ln --symbolic --force --no-target-directory \$version_path/\$real_nodejs_version \$version_path/\$version
+done <<< "\$(echo "\$all_real_version")"
+EOF
+
+	chmod +x "$n_install_dir/node_update.sh"
+
+	# Build the cronjob
+	cat > "/etc/cron.daily/node_update" << EOF
+#!/bin/bash
+
+$n_install_dir/node_update.sh >> $n_install_dir/node_update.log
+EOF
+
+	chmod +x "/etc/cron.daily/node_update"
 }