Initial commit: combine nas_tool, nas_webdav, sync-utils

fix_deleted_files_space.sh

@@ -0,0 +1,124 @@
+#!/bin/bash
+
+# Fix: Free Space After Deleting Files
+# When you delete files but don't see space back, this script fixes it
+
+set -e
+
+echo "=== Fix: Free Space After Deleting Files ==="
+echo ""
+echo "This script handles the common issue where deleted files don't free up space"
+echo "because APFS snapshots are holding onto them."
+echo ""
+
+# Check current free space
+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: ${FREE_SPACE_GB_BEFORE}GB"
+echo ""
+
+# Check for Time Machine local snapshots
+echo "📸 Checking for Time Machine local snapshots..."
+TM_SNAPSHOTS=$(tmutil listlocalsnapshots / 2>/dev/null | grep -v "Snapshots for disk" | grep -v "^$")
+if [ -n "$TM_SNAPSHOTS" ]; then
+    echo "   Found snapshot(s) that may be holding space:"
+    echo "$TM_SNAPSHOTS" | sed 's/^/   - /'
+    echo ""
+    
+    read -p "Delete these snapshots to free space? (y/n) " -n 1 -r
+    echo ""
+    if [[ $REPLY =~ ^[Yy]$ ]]; then
+        echo ""
+        echo "🗑️  Deleting snapshots..."
+        
+        # Disable local snapshots first (helps with stuck snapshots)
+        echo "   1. Disabling local snapshots..."
+        sudo tmutil disablelocal 2>/dev/null || true
+        sleep 2
+        
+        # Delete each snapshot
+        echo "   2. Deleting snapshots..."
+        echo "$TM_SNAPSHOTS" | while read snapshot; do
+            if [ -n "$snapshot" ]; then
+                # Extract date part from snapshot name
+                SNAP_DATE=$(echo "$snapshot" | sed 's/.*\.\([0-9]\{4\}-[0-9]\{2\}-[0-9]\{2\}-[0-9]\{6\}\)\.backup/\1/')
+                if [ -n "$SNAP_DATE" ]; then
+                    echo "      Deleting: $snapshot"
+                    sudo tmutil deletelocalsnapshots "$SNAP_DATE" 2>/dev/null && \
+                        echo "      ✓ Deleted" || \
+                        echo "      ⚠️  Could not delete (may need restart)"
+                fi
+            fi
+        done
+        
+        # Try to thin all snapshots
+        echo "   3. Thinning all local snapshots..."
+        sudo tmutil thinlocalsnapshots / 1000000000 4 2>/dev/null || true
+        
+        # Re-enable local snapshots
+        echo "   4. Re-enabling local snapshots..."
+        sleep 2
+        sudo tmutil enablelocal 2>/dev/null || true
+        
+        echo "   ✓ Snapshot cleanup completed"
+    fi
+else
+    echo "   ✓ No Time Machine snapshots found"
+fi
+
+echo ""
+
+# Force purge of memory and disk caches
+echo "🧹 Purging system caches..."
+if command -v purge &> /dev/null; then
+    sudo purge
+    echo "   ✓ Purge completed"
+else
+    echo "   ⚠️  Purge command not available"
+fi
+
+echo ""
+
+# Wait a moment for system to update
+echo "⏳ Waiting for system to update disk space..."
+sleep 5
+
+# Check new free space
+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"
+else
+    echo "   ⚠️  No space freed yet"
+fi
+echo ""
+
+if (( $(echo "$FREED_GB < 15" | bc -l) )) && (( $(echo "$FREE_SPACE_GB_AFTER < 5" | bc -l) )); then
+    echo "⚠️  If space still not freed, try these steps:"
+    echo ""
+    echo "1. **Restart your Mac** - This is often the most effective solution."
+    echo "   Snapshots are sometimes only released after a restart."
+    echo ""
+    echo "2. Check if Time Machine is trying to connect:"
+    echo "   - Open System Settings → Time Machine"
+    echo "   - If it says 'Connecting...', wait for it to finish or disconnect"
+    echo "   - Then try deleting snapshots again"
+    echo ""
+    echo "3. Manually delete the snapshot after disabling Time Machine:"
+    echo "   sudo tmutil disablelocal"
+    echo "   sudo tmutil deletelocalsnapshots <date>"
+    echo "   sudo tmutil enablelocal"
+    echo ""
+    echo "4. Use macOS Storage Management:"
+    echo "   Apple Menu → About This Mac → Storage → Manage"
+    echo "   This tool can identify and remove large system files"
+    echo ""
+fi
+
+echo ""