add cleanup-backups script to remove older backups

2026-03-15 01:06:58 +03:30
parent d559cdcf80
commit 1841ce8c59
2 changed files with 107 additions and 3 deletions
@@ -0,0 +1,92 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+### CONFIG ###
+DATE=$(date +%F)
+BACKUPS_DIR="$HOME/backups/synapse"
+DRY_RUN=true
+KEEP_COUNT=4
+
+# Function to display usage information
+usage() {
+  echo "Usage: $0 [--run]"
+  exit 1
+}
+
+# Parse command-line arguments
+for arg in "$@"; do
+  case $arg in
+    --run)
+      DRY_RUN=false
+      shift
+      ;;
+    *)
+      usage
+      ;;
+  esac
+done
+
+### 8️⃣ Optional: Full combined archiveve (run with sudo)
+echo "📅 Date: $DATE"
+echo "📁 Backups dir: $BACKUPS_DIR"
+echo "📦 Start reading backup files..."
+echo
+
+
+TIMESTAMP_FILE="$BACKUPS_DIR/backup_timestamps.txt"
+
+# Check if the backups directory exists
+if [ ! -d "$BACKUPS_DIR" ]; then
+  echo "Backup directory does not exist: $BACKUPS_DIR"
+  exit 1
+fi
+
+
+cd $BACKUPS_DIR
+
+# Count the number of existing backups
+TOTAL_BACKUPS=$(find . -name 'full-backup-*.tar.gz' | wc -l)
+echo "Existing backup files ($TOTAL_BACKUPS) :"
+# Find all full-backup-*.tar.gz files and list them
+find . -name 'full-backup-*.tar.gz'| sort -k2,2 -t. -n -r | while IFS= read -r file; do
+  echo "- $file"
+done
+echo 
+
+
+# Find and list files that should be removed
+echo "Files that will be deleted:"
+files_to_delete=()
+while IFS= read -r -d $'\0' dir; do
+  files_to_delete+=("$dir")
+  echo "- $dir"
+done < <(find . -name 'full-backup-*.tar.gz' -mtime +$KEEP_COUNT -print0)
+echo
+
+# Prompt for confirmation if not in dry-run mode
+#if [ "$DRY_RUN" = false ]; then
+#  read -p "Do you want to delete these files? (y/n): " confirm
+#  if [[ $confirm != [yY] ]]; then
+#    echo "Deletion cancelled."
+#    exit 0
+#  fi
+#  echo
+#fi
+
+# Delete the files in dry-run mode or actually delete them
+for file in "${files_to_delete[@]}"; do
+  if [ "$DRY_RUN" = true ]; then
+  echo "Will be deleted (Dry-Run): $file"
+  else
+    rm "$file"
+    echo "Deleted $file"
+  fi
+done
+echo
+
+# Update the timestamp file (optional, but good practice)
+if [ "$DRY_RUN" = false ]; then
+  echo "$(date +%F)" > "$BACKUPS_DIR/backup_timestamps.txt"
+fi
+
+echo "Cleanup completed."