mautrix_telegram_ynh/scripts/restore
2021-08-19 16:38:52 +02:00

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#!/bin/bash
#=================================================
# GENERIC START
#=================================================
# IMPORT GENERIC HELPERS
#=================================================
# Keep this path for calling _common.sh inside the execution's context of backup and restore scripts
source ../settings/scripts/_common.sh
source /usr/share/yunohost/helpers
#=================================================
# MANAGE SCRIPT FAILURE
#=================================================
ynh_clean_setup () {
#### Remove this function if there's nothing to clean before calling the remove script.
true
}
# Exit if an error occurs during the execution of the script
ynh_abort_if_errors
#=================================================
# LOAD SETTINGS
#=================================================
ynh_script_progression --message="Loading installation settings..." --time --weight=1
app=$YNH_APP_INSTANCE_NAME
mautrix_bridge_user=$app
domain=$(ynh_app_setting_get --app=$app --key=domain)
final_path=$(ynh_app_setting_get --app=$app --key=final_path)
mautrix_bridge_db_name=$(ynh_app_setting_get --app=$app --key=mautrix_bridge_db_name)
mautrix_bridge_db_user=$mautrix_bridge_db_name
mautrix_bridge_db_pwd=$(ynh_app_setting_get --app=$app --key=mautrix_bridge_db_pwd)
app_service_registration_path=$(ynh_app_setting_get --app=$app --key=app_service_registration_path)
synapse_instance=$(ynh_app_setting_get --app=$app --key=synapse_instance)
#=================================================
# CHECK IF THE APP CAN BE RESTORED
#=================================================
ynh_script_progression --message="Validating restoration parameters..." --time --weight=1
test ! -d $final_path \
|| ynh_die --message="There is already a directory: $final_path "
#=================================================
# STANDARD RESTORATION STEPS
#=================================================
# RESTORE THE APP MAIN DIR
#=================================================
ynh_script_progression --message="Restoring the app main directory..." --time --weight=1
ynh_restore_file --origin_path="$final_path"
#=================================================
# RECREATE THE DEDICATED USER
#=================================================
ynh_script_progression --message="Recreating the dedicated system user..." --time --weight=1
# Create the dedicated user (if not existing)
ynh_system_user_create --username=$app
#=================================================
# RESTORE USER RIGHTS
#=================================================
# Restore permissions on app files
chown $mautrix_bridge_user:root -R $final_path
#=================================================
# SPECIFIC RESTORATION
#=================================================
# REINSTALL DEPENDENCIES
#=================================================
ynh_script_progression --message="Reinstalling dependencies..." --time --weight=1
# Define and install dependencies
ynh_install_app_dependencies $pkg_dependencies
# TODO
#=================================================
# RESTORE THE MYSQL DATABASE
#=================================================
# ynh_script_progression --message="Restoring the MySQL database..." --time --weight=1
ynh_psql_test_if_first_run
ynh_print_OFF
ynh_psql_create_user $mautrix_bridge_db_user $mautrix_bridge_db_pwd
ynh_print_ON
ynh_psql_execute_as_root \
--sql="CREATE DATABASE ""$mautrix_bridge_db_name"" ENCODING 'UTF8' LC_COLLATE='C' LC_CTYPE='C' template=template0 OWNER ""$mautrix_bridge_db_user"";"
ynh_psql_execute_file_as_root --file="db.sql" --database="$mautrix_bridge_db_name"
#=================================================
# RESTORE SYSTEMD
#=================================================
ynh_script_progression --message="Restoring the systemd configuration..." --time --weight=1
ynh_restore_file --origin_path="/etc/systemd/system/$app.service"
systemctl enable $app.service --quiet
#=================================================
# INTEGRATE SERVICE IN YUNOHOST
#=================================================
ynh_script_progression --message="Integrating service in YunoHost..." --time --weight=1
yunohost service add $app --description="A short description of the app" --log="/var/log/$app/$app.log"
#=================================================
# START SYSTEMD SERVICE
#=================================================
ynh_script_progression --message="Starting a systemd service..." --time --weight=1
ynh_systemd_action --service_name=$app --action="start" --log_path="/var/log/$app/$app.log"
#=================================================
# RESTORE THE LOGROTATE CONFIGURATION
#=================================================
ynh_restore_file --origin_path="/etc/logrotate.d/$app"
#=================================================
# RESTORE VARIOUS FILES
#=================================================
ynh_restore_file --origin_path="$app_service_registration_path"
#=================================================
# GENERIC FINALIZATION
#=================================================
#
# also create an initial log file else the service fails
mkdir /var/log/$app
mkdir /var/log/$app/$app.log
chown $mautrix_bridge_user:root -R /var/log/$app
# after restoring files ensure synapse knows about the bot but don't die on failure
# TODO check (in manifest?) if the selected synapse instance is not already connected to a mautrix_bridge bridge
/opt/yunohost/matrix-$synapse_instance/update_synapse_for_appservice.sh \
|| echo "Synapse can't restart with the appservice configuration"
#=================================================
# END OF SCRIPT
#=================================================
ynh_script_progression --message="Restoration completed for $app" --time --last