chibisafe_ynh/scripts/upgrade

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#!/bin/bash
#=================================================
# IMPORT GENERIC HELPERS
#=================================================
source _common.sh
source /usr/share/yunohost/helpers
### Settings are automatically loaded as bash variables
### in every app script context, therefore typically these will exist:
### - $domain
### - $path
### - $language
### - $install_dir
### - $port
### ...
### In the context of upgrade,
### - resources are automatically provisioned / updated / deleted (depending on existing resources)
### - a safety backup is automatically created by the core and will be restored if the upgrade fails
#=================================================
# STOP SYSTEMD SERVICE
#=================================================
ynh_script_progression "Stopping $app's systemd service..."
ynh_systemctl --service="$app" --action="stop"
#=================================================
# ENSURE DOWNWARD COMPATIBILITY
#=================================================
#ynh_script_progression "Ensuring downward compatibility..."
### N.B. : the following setting migration snippets are provided as *EXAMPLES*
### of what you may want to do in some cases (e.g. a setting was not defined on
### some legacy installs and you therefore want to initiaze stuff during upgrade)
# If db_name doesn't exist, create it
# if [ -z "$db_name" ]; then
# db_name=$(ynh_sanitize_dbid --db_name=$app)
# ynh_app_setting_set --key=db_name --value=$db_name
# fi
# If install_dir doesn't exist, create it
# if [ -z "$install_dir" ]; then
# install_dir=/var/www/$app
# ynh_app_setting_set --key=install_dir --value=$install_dir
# fi
#=================================================
# DOWNLOAD, CHECK AND UNPACK SOURCE
#=================================================
ynh_script_progression "Upgrading source files..."
### ynh_setup_source can wipe the destination dir if called with --full_replace.
### On upgrade, that is certainly what you want, to remove any old source file that
### does not exist in the new version of the software.
### You can list with --keep every file/directory to *not* wipe or overwrite,
### useful for configuration files, data directories, or plugins.
# Download, check integrity, uncompress and patch the source from manifest.toml
ynh_setup_source --dest_dir="$install_dir" --full_replace --keep=".env data"
### $install_dir will automatically be initialized with some decent
### permissions by default ... however, you may need to recursively reapply
### ownership to all files such as after the ynh_setup_source step
chown -R "$app:www-data" "$install_dir"
#=================================================
# UPDATE A CONFIG FILE
#=================================================
ynh_script_progression "Updating $app's configuration files..."
### Same as during install
###
### The file will automatically be backed-up if it's found to be manually modified (because
### ynh_config_add keeps track of the file's checksum)
ynh_config_add --template="some_config_file" --destination="$install_dir/some_config_file"
# FIXME: this should be handled by the core in the future
### You may need to use chmod 600 instead of 400,
### for example if the app is expected to be able to modify its own config
chmod 400 "$install_dir/some_config_file"
chown "$app:$app" "$install_dir/some_config_file"
### For more complex cases where you want to replace stuff using regexes,
### you shoud rely on ynh_replace (which is basically a wrapper for sed)
### When doing so, you also need to manually call ynh_store_file_checksum
###
### ynh_replace --match="match_string" --replace="replace_string" --file="$install_dir/some_config_file"
### ynh_store_file_checksum "$install_dir/some_config_file"
#=================================================
# REAPPLY SYSTEM CONFIGURATIONS
#=================================================
ynh_script_progression "Upgrading system configurations related to $app..."
### This should be a literal copypaste of what happened in the install's "System configuration" section
ynh_config_add_phpfpm
ynh_config_add_nginx
ynh_config_add_systemd
yunohost service add "$app" --description="A short description of the app" --log="/var/log/$app/$app.log"
ynh_config_add_logrotate
ynh_config_add_fail2ban --logpath="/var/log/nginx/${domain}-error.log" --failregex="Regex to match into the log for a failed login"
#=================================================
# START SYSTEMD SERVICE
#=================================================
ynh_script_progression "Starting $app's systemd service..."
ynh_systemctl --service="$app" --action="start"
#=================================================
# END OF SCRIPT
#=================================================
ynh_script_progression "Upgrade of $app completed"