searx_ynh/scripts/upgrade

#!/bin/bash

#=================================================
# GENERIC START
#=================================================
# IMPORT GENERIC HELPERS
#=================================================

source _common.sh
source /usr/share/yunohost/helpers

#=================================================
# CHECK VERSION
#=================================================

upgrade_type=$(ynh_check_app_version_changed)

#=================================================
# STANDARD UPGRADE STEPS
#=================================================
# ENSURE DOWNWARD COMPATIBILITY
#=================================================
ynh_script_progression --message="Ensuring downward compatibility..."

mkdir -p /var/log/uwsgi/$app
chown $app:root /var/log/uwsgi/$app
chmod -R u=rwX,g=rX,o= /var/log/uwsgi/$app

#=================================================
# DOWNLOAD, CHECK AND UNPACK SOURCE
#=================================================

if [ "$upgrade_type" == "UPGRADE_APP" ]
then
	ynh_script_progression --message="Upgrading source files..." --weight=3

	# Create a temporary directory
	tmpdir="$(mktemp -d)"

	# Backup the config file in the temp dir
	cp -a "$install_dir/searx/settings.yml" "$tmpdir/settings.yml"

	# Download, check integrity, uncompress and patch the source from app.src
	ynh_setup_source --dest_dir="$install_dir"

	# Copy the admin saved settings from tmp directory to final path
	cp -a "$tmpdir/settings.yml" "$install_dir/searx/settings.yml"

	# Remove the tmp directory securely
	ynh_secure_remove --file="$tmpdir"
fi

#=================================================
# NGINX CONFIGURATION
#=================================================
ynh_script_progression --message="Upgrading NGINX web server configuration..." --weight=2

path_no_root=${path%/}
# Create a dedicated NGINX config
ynh_add_nginx_config "path_no_root"

#=================================================
# SPECIFIC UPGRADE
#=================================================
# UPGRADE SEARX IN ITS VIRTUALENV
#=================================================
ynh_script_progression --message="Upgrading Searx..." --weight=7

# Clean venv if it still on python2
if [ -e $install_dir/bin ] && [ ! -e $install_dir/bin/python3 ]
then
	ynh_regex_secure_remove --file=$install_dir/lib/ --regex='python[^/.]*'
	ynh_regex_secure_remove --file=$install_dir/lib64/ --regex='python[^/.]*'
	ynh_regex_secure_remove --file=$install_dir/share/python-wheels
fi

ynh_regex_secure_remove --file=$install_dir/lib/python3/site-packages/setuptools
ynh_regex_secure_remove --file=$install_dir/lib/python3/site-packages/ --regex='setuptools-[^/.]*'

ynh_regex_secure_remove --file=$install_dir/venv/lib/python3/site-packages/setuptools
ynh_regex_secure_remove --file=$install_dir/venv/lib/python3/site-packages/ --regex='setuptools-[^/.]*'

pushd $install_dir
    python3 -m venv venv
    venv/bin/pip3 install -U pip setuptools wheel pyyaml --no-cache-dir
    venv/bin/pip3 install --requirement $install_dir/requirements-ynh.txt --no-cache-dir
popd

chown -R $app: "$install_dir"

#=================================================
# CONFIGURE SEARX
#=================================================
# ynh_script_progression --message="Configuring Searx..." --weight=2

# secret_key=$(ynh_string_random)
# ynh_add_config --template="settings.yml" --destination="$install_dir/searx/settings.yml"

#=================================================
# CONFIGURE UWSGI FOR SEARX
#=================================================
ynh_script_progression --message="Reconfiguring uWSGI for Searx..." --weight=2

# Clean old files
ynh_secure_remove --file="/etc/uwsgi/apps-enabled/$app.ini"
ynh_secure_remove --file="/etc/uwsgi/apps-available/$app.ini"
ynh_add_uwsgi_service

#=================================================
# GENERIC FINALISATION
#=================================================
# START SYSTEMD SERVICE
#=================================================
ynh_script_progression --message="Starting a systemd service..." --weight=3

# Wait for searx to be fully started
ynh_systemd_action --service_name=uwsgi-app@$app.service --action=restart --line_match="spawned uWSGI master process" --log_path="/var/log/uwsgi/$app/$app.log"

#=================================================
# END OF SCRIPT
#=================================================

ynh_script_progression --message="Upgrade of $app completed" --last