Initial commit: combine nas_tool, nas_webdav, sync-utils

delete_snapshot_safe.sh

@@ -0,0 +1,81 @@
+#!/bin/bash
+
+# Delete Local Snapshot to Free Space
+# Since files are on NAS, it's safe to remove the snapshot
+
+set -e
+
+echo "=== Delete Local Snapshot to Free Space ==="
+echo ""
+echo "Since your files are safely backed up on NAS, we can delete"
+echo "the local snapshot to free up space."
+echo ""
+
+FREE_SPACE_BEFORE=$(df / | tail -1 | awk '{print $4}')
+FREE_SPACE_GB_BEFORE=$(echo "scale=2; $FREE_SPACE_BEFORE / 1024 / 1024" | bc)
+echo "Current free space: ${FREE_SPACE_GB_BEFORE}GB"
+echo ""
+
+# Check snapshot
+SNAPSHOT=$(tmutil listlocalsnapshots / 2>/dev/null | grep -v "Snapshots for disk" | grep -v "^$" | head -1)
+if [ -z "$SNAPSHOT" ]; then
+    echo "✅ No snapshot found - you're all set!"
+    exit 0
+fi
+
+echo "Found snapshot: $SNAPSHOT"
+echo ""
+
+# Extract date
+SNAP_DATE=$(echo "$SNAPSHOT" | sed 's/.*\.\([0-9]\{4\}-[0-9]\{2\}-[0-9]\{2\}-[0-9]\{6\}\)\.backup/\1/')
+
+if [ -z "$SNAP_DATE" ]; then
+    echo "⚠️  Could not parse snapshot date"
+    exit 1
+fi
+
+echo "Attempting to delete snapshot: $SNAP_DATE"
+echo ""
+
+# Try to delete
+if sudo tmutil deletelocalsnapshots "$SNAP_DATE" 2>/dev/null; then
+    echo "✅ Successfully deleted snapshot!"
+    echo ""
+    echo "⏳ Waiting for space to be released..."
+    sleep 5
+    
+    FREE_SPACE_AFTER=$(df / | tail -1 | awk '{print $4}')
+    FREE_SPACE_GB_AFTER=$(echo "scale=2; $FREE_SPACE_AFTER / 1024 / 1024" | bc)
+    FREED_GB=$(echo "scale=2; $FREE_SPACE_GB_AFTER - $FREE_SPACE_GB_BEFORE" | bc)
+    
+    echo ""
+    echo "=== Results ==="
+    echo "   Before: ${FREE_SPACE_GB_BEFORE}GB free"
+    echo "   After:  ${FREE_SPACE_GB_AFTER}GB free"
+    if (( $(echo "$FREED_GB > 0" | bc -l) )); then
+        echo "   ✅ Freed: ${FREED_GB}GB"
+    fi
+else
+    echo "⚠️  Could not delete snapshot (Stale NFS file handle error)"
+    echo ""
+    echo "This is a known issue. The snapshot is stuck because:"
+    echo "  - Time Machine had a stale connection to NAS"
+    echo "  - The snapshot reference is corrupted"
+    echo ""
+    echo "=== Solutions ==="
+    echo ""
+    echo "Option 1: Restart your Mac (Recommended)"
+    echo "  This will release the stuck snapshot and free the space."
+    echo "  After restart, the snapshot should be gone."
+    echo ""
+    echo "Option 2: Wait for macOS to auto-clean"
+    echo "  macOS will eventually clean up stuck snapshots, but this"
+    echo "  can take hours or days."
+    echo ""
+    echo "The good news: The snapshot is a GHOST ENTRY (not in APFS)."
+    echo "This means the space may already be available - the entry"
+    echo "is just a stale database record that will clear on restart."
+    echo ""
+fi
+
+echo ""