Release v1.2.0: Add automated update script

- Add update.sh script for seamless upgrades
- Automatically detects user/system installations
- Backs up configurations before updating
- Migrates bandwidth limit from 1M to 2M
- Updates scripts and services safely

1 files changed, 189 insertions, 0 deletions

diff --git a/update.sh b/update.sh
new file mode 100755
index 0000000..6bc6de8
--- /dev/null
+++ b/update.sh
@@ -0,0 +1,189 @@
+#!/bin/bash
+set -euo pipefail
+
+# Update script for drestic installations
+# Detects installation type and updates files safely
+
+log() {
+	echo "--- $* ---"
+}
+
+error() {
+	echo "Error: $*" >&2
+	exit 1
+}
+
+# Detect installation type
+detect_installation() {
+	if [ -f "/root/.restic_env" ] && [ -d "/etc/restic" ]; then
+		echo "system"
+	elif [ -f "$HOME/.config/restic/env" ]; then
+		echo "user"
+	else
+		error "Cannot detect drestic installation. Not found in system (/root/.restic_env) or user ($HOME/.config/restic/env) locations."
+	fi
+}
+
+# Check if running as root for system installation
+check_permissions() {
+	local install_type="$1"
+	if [ "$install_type" = "system" ] && [ "$EUID" -ne 0 ]; then
+		error "System installation update requires root. Run with sudo."
+	fi
+}
+
+# Backup existing configuration files
+backup_configs() {
+	local install_type="$1"
+	local backup_dir
+	
+	if [ "$install_type" = "system" ]; then
+		backup_dir="/etc/restic/backup-$(date +%Y%m%d-%H%M%S)"
+		sudo mkdir -p "$backup_dir"
+ else
+		backup_dir="$HOME/.config/restic/backup-$(date +%Y%m%d-%H%M%S)"
+		mkdir -p "$backup_dir"
+	fi
+	
+	log "Backing up configuration to $backup_dir"
+	
+	if [ "$install_type" = "system" ]; then
+		sudo cp -r /etc/restic/* "$backup_dir/" 2>/dev/null || true
+ else
+		cp -r "$HOME/.config/restic"/* "$backup_dir/" 2>/dev/null || true
+	fi
+	
+	echo "$backup_dir"
+}
+
+# Update scripts
+update_scripts() {
+	local install_type="$1"
+	local install_dir
+	
+	if [ "$install_type" = "system" ]; then
+		install_dir="/usr/local/bin"
+		log "Updating scripts in $install_dir"
+		sudo cp restic_backup.sh "$install_dir/"
+		sudo cp restic_check.sh "$install_dir/"
+		sudo cp common.sh "$install_dir/"
+		sudo chmod +x "$install_dir/restic_*.sh" "$install_dir/common.sh"
+	else
+		install_dir="$HOME/.local/bin"
+		mkdir -p "$install_dir"
+		log "Updating scripts in $install_dir"
+		cp restic_backup.sh "$install_dir/"
+		cp restic_check.sh "$install_dir/"
+		cp common.sh "$install_dir/"
+		chmod +x "$install_dir/restic_*.sh" "$install_dir/common.sh"
+	fi
+}
+
+# Update systemd services
+update_services() {
+	local install_type="$1"
+	local systemd_dir
+	
+	if [ "$install_type" = "system" ]; then
+		systemd_dir="/etc/systemd/system"
+		log "Updating systemd services in $systemd_dir"
+		sudo cp systemd/restic-backup.service "$systemd_dir/"
+		sudo cp systemd/restic-check.service "$systemd_dir/"
+		sudo systemctl daemon-reload
+	else
+		systemd_dir="$HOME/.config/systemd/user"
+		mkdir -p "$systemd_dir"
+		log "Updating systemd services in $systemd_dir"
+		cp systemd/restic-backup.service "$systemd_dir/"
+		cp systemd/restic-check.service "$systemd_dir/"
+		systemctl --user daemon-reload
+	fi
+}
+
+# Optional: Update bandwidth limit in environment file
+update_bandwidth() {
+	local install_type="$1"
+	local env_file
+	
+	if [ "$install_type" = "system" ]; then
+		env_file="/root/.restic_env"
+	else
+		env_file="$HOME/.config/restic/env"
+	fi
+	
+	# Check if file exists and has old bandwidth setting
+	if [ -f "$env_file" ] && grep -q "RCLONE_BWLIMIT=1M" "$env_file"; then
+		log "Updating rclone bandwidth limit from 1M to 2M"
+		if [ "$install_type" = "system" ]; then
+			sudo sed -i 's/RCLONE_BWLIMIT=1M/RCLONE_BWLIMIT=2M/' "$env_file"
+		else
+			sed -i 's/RCLONE_BWLIMIT=1M/RCLONE_BWLIMIT=2M/' "$env_file"
+		fi
+	fi
+}
+
+# Restart services
+restart_services() {
+	local install_type="$1"
+	
+	log "Restarting systemd timers"
+	if [ "$install_type" = "system" ]; then
+		sudo systemctl restart restic-backup.timer restic-check.timer
+		echo "System services updated. Check status with:"
+		echo "  sudo systemctl status restic-backup.timer restic-check.timer"
+	else
+		systemctl --user restart restic-backup.timer restic-check.timer
+		echo "User services updated. Check status with:"
+		echo "  systemctl --user status restic-backup.timer restic-check.timer"
+	fi
+}
+
+# Main update logic
+main() {
+	log "Starting drestic update process"
+	
+	# Get script directory
+	SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+	cd "$SCRIPT_DIR"
+	
+	# Check we're in a git repo
+	if ! git rev-parse --git-dir > /dev/null 2>&1; then
+		error "Not in a git repository. Please run from drestic directory."
+	fi
+	
+	# Detect installation type
+	install_type=$(detect_installation)
+	log "Detected $install_type installation"
+	
+	# Check permissions
+	check_permissions "$install_type"
+	
+	# Backup configs
+	backup_dir=$(backup_configs "$install_type")
+	log "Configuration backed up to: $backup_dir"
+	
+	# Update scripts
+	update_scripts "$install_type"
+	
+	# Update services
+	update_services "$install_type"
+	
+	# Update bandwidth (optional)
+	update_bandwidth "$install_type"
+	
+	# Restart services
+	restart_services "$install_type"
+	
+	log "Update completed successfully!"
+	echo ""
+	echo "Key improvements in this update:"
+	echo "  - Memory limits increased (512M RAM, 1G swap) to prevent OOM"
+	echo "  - Prune coordination (2-4 AM window) to avoid multi-device conflicts"
+	echo "  - Lock retry settings for robust multi-device operation"
+	echo "  - Bandwidth increased from 1M to 2M for better performance"
+	echo ""
+	echo "If you encounter issues, restore from: $backup_dir"
+}
+
+# Run main function
+main "$@"
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