helpers 2.1: remove packaging v1 ynh_backup_before_upgrade and ynh_restore_upgradebackup, handled by core in packaging v2

helpers/helpers.v2.1.d/backup

@@ -408,94 +408,3 @@ ynh_backup_archive_exists() {
     yunohost backup list --output-as json --quiet \
         | jq -e --arg archive "$1" '.archives | index($archive)' >/dev/null
 }
-
-# Make a backup in case of failed upgrade
-#
-# [packagingv1]
-#
-# usage: ynh_backup_before_upgrade
-#
-# Usage in a package script:
-# ```
-#   ynh_backup_before_upgrade
-#   ynh_clean_setup () {
-#       ynh_restore_upgradebackup
-#   }
-#   ynh_abort_if_errors
-# ```
-#
-# Requires YunoHost version 2.7.2 or higher.
-ynh_backup_before_upgrade() {
-    if [ ! -e "/etc/yunohost/apps/$app/scripts/backup" ]; then
-        ynh_print_warn --message="This app doesn't have any backup script."
-        return
-    fi
-    backup_number=1
-    local old_backup_number=2
-    local app_bck=${app//_/-} # Replace all '_' by '-'
-    NO_BACKUP_UPGRADE=${NO_BACKUP_UPGRADE:-0}
-
-    if [ "$NO_BACKUP_UPGRADE" -eq 0 ]; then
-        # Check if a backup already exists with the prefix 1
-        if ynh_backup_archive_exists "$app_bck-pre-upgrade1"; then
-            # Prefix becomes 2 to preserve the previous backup
-            backup_number=2
-            old_backup_number=1
-        fi
-
-        # Create backup
-        BACKUP_CORE_ONLY=1 yunohost backup create --apps $app --name $app_bck-pre-upgrade$backup_number --debug
-        if [ "$?" -eq 0 ]; then
-            # If the backup succeeded, remove the previous backup
-            if ynh_backup_archive_exists "$app_bck-pre-upgrade$old_backup_number"; then
-                # Remove the previous backup only if it exists
-                yunohost backup delete $app_bck-pre-upgrade$old_backup_number >/dev/null
-            fi
-        else
-            ynh_die --message="Backup failed, the upgrade process was aborted."
-        fi
-    else
-        ynh_print_warn --message="\$NO_BACKUP_UPGRADE is set, backup will be avoided. Be careful, this upgrade is going to be operated without a security backup"
-    fi
-}
-
-# Restore a previous backup if the upgrade process failed
-#
-# [packagingv1]
-#
-# usage: ynh_restore_upgradebackup
-#
-# Usage in a package script:
-# ```
-#   ynh_backup_before_upgrade
-#   ynh_clean_setup () {
-#       ynh_restore_upgradebackup
-#   }
-#   ynh_abort_if_errors
-# ```
-#
-# Requires YunoHost version 2.7.2 or higher.
-ynh_restore_upgradebackup() {
-    ynh_print_err --message="Upgrade failed."
-    local app_bck=${app//_/-} # Replace all '_' by '-'
-
-    NO_BACKUP_UPGRADE=${NO_BACKUP_UPGRADE:-0}
-
-    if [ "$NO_BACKUP_UPGRADE" -eq 0 ]; then
-        # Check if an existing backup can be found before removing and restoring the application.
-        if ynh_backup_archive_exists "$app_bck-pre-upgrade$backup_number"; then
-            # Remove the application then restore it
-            yunohost app remove $app
-            # Restore the backup
-            yunohost backup restore $app_bck-pre-upgrade$backup_number --apps $app --force --debug
-            if [[ -d /etc/yunohost/apps/$app ]]
-            then
-                ynh_die --message="The app was restored to the way it was before the failed upgrade."
-            else
-                ynh_die --message="Uhoh ... Yunohost failed to restore the app to the way it was before the failed upgrade :|"
-            fi
-        fi
-    else
-        ynh_print_warn --message="\$NO_BACKUP_UPGRADE is set, that means there's no backup to restore. You have to fix this upgrade by yourself !"
-    fi
-}