manage backup shell upadte

scripts/imports/manage_backup_schedule.sh

@@ -1,78 +1,62 @@
 #!/bin/bash
 
-# Enable strict error handling
-set -euo pipefail
-trap 'handle_error $? $LINENO' ERR
-
 # Configuration
 BACKUP_SCRIPT="/home/litespeed/mb-backups/backup_all.sh"
 LOG_DIR="/home/litespeed/mb-backups/logs/auto"
 ACTION_LOG_FILE="${LOG_DIR}/schedule_actions.log"
 BACKUP_LOG_PREFIX="${LOG_DIR}/backup_"
-PASSWORD_FILE="/etc/restic-password"
-LOCK_FILE="/tmp/backup_schedule.lock"
-SCHEDULE="0 0 * * *"  # Default to daily at midnight
 
-# Error handling function
+# Ensure the log directory exists
-handle_error() {
+mkdir -p "$LOG_DIR"
-    local exit_code=$1
-    local line_no=$2
-    log_action "ERROR: Command failed at line ${line_no} with exit code ${exit_code}"
-    cleanup_and_exit 1
-}
 
-# Cleanup function
-cleanup_and_exit() {
-    local exit_code=$1
-    [ -f "$LOCK_FILE" ] && rm -f "$LOCK_FILE"
-    exit "${exit_code}"
-}
-
-# Ensure single instance
-ensure_single_instance() {
-    if [ -f "$LOCK_FILE" ]; then
-        if kill -0 "$(cat "$LOCK_FILE")" 2>/dev/null; then
-            log_action "ERROR: Another instance is running"
-            exit 1
-        fi
-    fi
-    echo $$ > "$LOCK_FILE"
-}
-
-# Logging function
 log_action() {
-    local timestamp=$(date +'%Y-%m-%d %H:%M:%S')
+    echo "[$(date +'%Y-%m-%d %H:%M:%S')] $1" >> "$ACTION_LOG_FILE"
-    echo "[$timestamp] $1" | tee -a "$ACTION_LOG_FILE"
 }
 
-# Function to configure the cron job
+# Function to add or update the cron job with dynamic logging
-configure_cron_job() {
+add_update_cron_job() {
-    if [ ! -f "$PASSWORD_FILE" ]; then
+    # Verify Restic password is provided
-        log_action "ERROR: Restic password file not found"
+    if [ -z "$3" ]; then
-        return 1
+        echo "Restic password is required."
+        log_action "Attempted to add/update a schedule without providing a Restic password."
+        exit 1
     fi
 
-    local restic_password
+    # Prepare the cron command to include dynamic date in the backup log filename
-    restic_password=$(cat "$PASSWORD_FILE")
+    CMD="RESTIC_PASSWORD=\"$3\" $BACKUP_SCRIPT > \"${BACKUP_LOG_PREFIX}\$(date +\\%Y-\\%m-\\%d_\\%H-\\%M-\\%S).log\" 2>&1"
-    local cmd="RESTIC_PASSWORD='$restic_password' LOG_FILE='${BACKUP_LOG_PREFIX}\$(date +\%Y-\%m-\%d_\%H-\%M-\%S).log' $BACKUP_SCRIPT > \"\$LOG_FILE\" 2>&1 || echo \"\$(date) Backup failed\" >> \"$ACTION_LOG_FILE\""
 
-    log_action "Adding cron job with schedule: $SCHEDULE and command: $cmd"
+    # Add or update the cron job
-    
+    (crontab -l | grep -v "$BACKUP_SCRIPT" 2>/dev/null; echo "$2 $CMD") | crontab -
-    # Update the cron job
+    local update_msg="Backup schedule updated to: $2"
-    (crontab -l 2>/dev/null | grep -v "$BACKUP_SCRIPT"; echo "$SCHEDULE $cmd") | crontab -
+    echo "$update_msg"
-    
+    log_action "$update_msg"
-    log_action "Scheduled daily backup at midnight with command: $cmd"
 }
 
-# Main execution
+# Function to remove the cron job
-main() {
+remove_cron_job() {
-    log_action "Starting manage_backup_schedule.sh"
+    crontab -l | grep -v "$BACKUP_SCRIPT" | crontab -
-    mkdir -p "$LOG_DIR"
+    local remove_msg="Backup schedule removed."
-    chmod 750 "$LOG_DIR"
+    echo "$remove_msg"
-    ensure_single_instance
+    log_action "$remove_msg"
-    configure_cron_job
-    cleanup_and_exit 0
 }
 
-# Execute main function with all arguments
+# Main logic to add, update, or remove the cron job based on user input
-main "$@"
+case $1 in
+    add|update)
+        if [ "$#" -ne 3 ]; then
+            echo "Usage for add/update: $0 {add|update} 'schedule' 'restic_password'"
+            echo "Example: $0 add '0 1 * * *' 'secret_password'"
+            log_action "Incorrect usage for add/update. Correct format not followed."
+        else
+            add_update_cron_job "$@"
+        fi
+        ;;
+    remove)
+        remove_cron_job
+        ;;
+    *)
+        echo "Invalid action: $1. Use add, update, or remove."
+        log_action "Invalid action attempted: $1"
+        exit 1
+        ;;
+esac