1 files changed, 71 insertions, 0 deletions
diff --git a/retention.sh b/retention.sh
new file mode 100755
index 0000000..b9bf8a7
--- /dev/null
+++ b/retention.sh
@@ -0,0 +1,71 @@
+#!/bin/bash
+
+SRC_BASE="/mnt/convert/archives"
+DEST_BASE="/mnt/5tb/archives"
+RETENTION_MONTHS=3
+TODAY=$(date +%s)
+
+LOG_FILE="/var/log/archive_retention.log"
+
+# Log start of run
+echo "=== Archive Sync: $(date) ===" >> "$LOG_FILE"
+
+# Init counters
+files_checked=0
+files_archived=0
+files_deleted=0
+
+# Traverse all subfolders
+find "$SRC_BASE" -type f -name '*.mp3' | while read -r file; do
+    ((files_checked++))
+
+    filename=$(basename "$file")
+    relative_path=$(realpath --relative-to="$SRC_BASE" "$file")
+    subfolder=$(dirname "$relative_path")
+    dest_folder="$DEST_BASE/$subfolder"
+    dest_file="$dest_folder/$filename"
+
+    # --- Date extraction logic (supports YYYY-MM-DD or YYYYMMDD) ---
+    file_date=$(echo "$filename" | grep -oP '\d{4}-\d{2}-\d{2}')
+
+    if [ -z "$file_date" ]; then
+        raw_date=$(echo "$filename" | grep -oP '\d{8}')
+        if [ ! -z "$raw_date" ]; then
+            file_date="${raw_date:0:4}-${raw_date:4:2}-${raw_date:6:2}"
+        fi
+    fi
+
+    if [ -z "$file_date" ]; then
+        echo "Skipping (no valid date found): $filename" >> "$LOG_FILE"
+        continue
+    fi
+
+    file_epoch=$(date -d "$file_date" +%s 2>/dev/null)
+    if [ -z "$file_epoch" ]; then
+        echo "Skipping (invalid date format): $filename" >> "$LOG_FILE"
+        continue
+    fi
+
+    age_months=$(( (TODAY - file_epoch) / 2592000 ))
+
+    # Make sure destination folder exists
+    mkdir -p "$dest_folder"
+
+    if [ "$age_months" -le "$RETENTION_MONTHS" ]; then
+        if [ ! -f "$dest_file" ]; then
+            echo "Archiving: $filename → $dest_folder" >> "$LOG_FILE"
+            cp "$file" "$dest_file"
+            ((files_archived++))
+        fi
+    else
+        if [ -f "$dest_file" ]; then
+            echo "Deleting expired: $filename" >> "$LOG_FILE"
+            rm "$dest_file"
+            ((files_deleted++))
+        fi
+    fi
+done
+
+# Final summary log
+echo "Checked: $files_checked | Archived: $files_archived | Deleted: $files_deleted" >> "$LOG_FILE"
+echo "" >> "$LOG_FILE"