Refactor blob storage to use UUID primary keys and implement streaming chunking
- Changed blob table to use ID (UUID) as primary key instead of hash - Blob records are now created at packing start, enabling immediate chunk associations - Implemented streaming chunking to process large files without memory exhaustion - Fixed blob manifest generation to include all referenced blobs - Updated all foreign key references from blob_hash to blob_id - Added progress reporting and improved error handling - Enforced encryption requirement for all blob packing - Updated tests to use test encryption keys - Added Cyrillic transliteration to README
This commit is contained in:
524
internal/backup/backup_test.go
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524
internal/backup/backup_test.go
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@@ -0,0 +1,524 @@
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package backup
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import (
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"context"
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"crypto/sha256"
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"database/sql"
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"fmt"
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"io"
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"io/fs"
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"os"
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"path/filepath"
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"testing"
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"testing/fstest"
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"time"
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"git.eeqj.de/sneak/vaultik/internal/database"
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)
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// MockS3Client is a mock implementation of S3 operations for testing
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type MockS3Client struct {
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storage map[string][]byte
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}
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func NewMockS3Client() *MockS3Client {
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return &MockS3Client{
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storage: make(map[string][]byte),
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}
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}
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func (m *MockS3Client) PutBlob(ctx context.Context, hash string, data []byte) error {
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m.storage[hash] = data
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return nil
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}
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func (m *MockS3Client) GetBlob(ctx context.Context, hash string) ([]byte, error) {
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data, ok := m.storage[hash]
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if !ok {
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return nil, fmt.Errorf("blob not found: %s", hash)
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}
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return data, nil
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}
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func (m *MockS3Client) BlobExists(ctx context.Context, hash string) (bool, error) {
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_, ok := m.storage[hash]
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return ok, nil
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}
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func (m *MockS3Client) CreateBucket(ctx context.Context, bucket string) error {
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return nil
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}
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func TestBackupWithInMemoryFS(t *testing.T) {
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// Create a temporary directory for the database
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tempDir := t.TempDir()
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dbPath := filepath.Join(tempDir, "test.db")
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// Create test filesystem
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testFS := fstest.MapFS{
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"file1.txt": &fstest.MapFile{
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Data: []byte("Hello, World!"),
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Mode: 0644,
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ModTime: time.Now(),
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},
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"dir1/file2.txt": &fstest.MapFile{
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Data: []byte("This is a test file with some content."),
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Mode: 0755,
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ModTime: time.Now(),
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},
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"dir1/subdir/file3.txt": &fstest.MapFile{
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Data: []byte("Another file in a subdirectory."),
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Mode: 0600,
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ModTime: time.Now(),
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},
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"largefile.bin": &fstest.MapFile{
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Data: generateLargeFileContent(10 * 1024 * 1024), // 10MB file with varied content
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Mode: 0644,
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ModTime: time.Now(),
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},
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}
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// Initialize the database
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ctx := context.Background()
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db, err := database.New(ctx, dbPath)
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if err != nil {
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t.Fatalf("Failed to create database: %v", err)
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}
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defer func() {
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if err := db.Close(); err != nil {
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t.Logf("Failed to close database: %v", err)
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}
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}()
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repos := database.NewRepositories(db)
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// Create mock S3 client
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s3Client := NewMockS3Client()
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// Run backup
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backupEngine := &BackupEngine{
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repos: repos,
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s3Client: s3Client,
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}
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snapshotID, err := backupEngine.Backup(ctx, testFS, ".")
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if err != nil {
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t.Fatalf("Backup failed: %v", err)
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}
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// Verify snapshot was created
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snapshot, err := repos.Snapshots.GetByID(ctx, snapshotID)
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if err != nil {
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t.Fatalf("Failed to get snapshot: %v", err)
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}
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if snapshot == nil {
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t.Fatal("Snapshot not found")
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}
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if snapshot.FileCount == 0 {
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t.Error("Expected snapshot to have files")
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}
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// Verify files in database
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files, err := repos.Files.ListByPrefix(ctx, "")
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if err != nil {
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t.Fatalf("Failed to list files: %v", err)
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}
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expectedFiles := map[string]bool{
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"file1.txt": true,
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"dir1/file2.txt": true,
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"dir1/subdir/file3.txt": true,
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"largefile.bin": true,
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}
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if len(files) != len(expectedFiles) {
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t.Errorf("Expected %d files, got %d", len(expectedFiles), len(files))
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}
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for _, file := range files {
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if !expectedFiles[file.Path] {
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t.Errorf("Unexpected file in database: %s", file.Path)
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}
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delete(expectedFiles, file.Path)
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// Verify file metadata
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fsFile := testFS[file.Path]
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if fsFile == nil {
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t.Errorf("File %s not found in test filesystem", file.Path)
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continue
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}
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if file.Size != int64(len(fsFile.Data)) {
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t.Errorf("File %s: expected size %d, got %d", file.Path, len(fsFile.Data), file.Size)
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}
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if file.Mode != uint32(fsFile.Mode) {
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t.Errorf("File %s: expected mode %o, got %o", file.Path, fsFile.Mode, file.Mode)
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}
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}
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if len(expectedFiles) > 0 {
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t.Errorf("Files not found in database: %v", expectedFiles)
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}
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// Verify chunks
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chunks, err := repos.Chunks.List(ctx)
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if err != nil {
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t.Fatalf("Failed to list chunks: %v", err)
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}
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if len(chunks) == 0 {
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t.Error("No chunks found in database")
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}
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// The large file should create 10 chunks (10MB / 1MB chunk size)
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// Plus the small files
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minExpectedChunks := 10 + 3
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if len(chunks) < minExpectedChunks {
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t.Errorf("Expected at least %d chunks, got %d", minExpectedChunks, len(chunks))
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}
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// Verify at least one blob was created and uploaded
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// We can't list blobs directly, but we can check via snapshot blobs
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blobHashes, err := repos.Snapshots.GetBlobHashes(ctx, snapshotID)
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if err != nil {
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t.Fatalf("Failed to get blob hashes: %v", err)
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}
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if len(blobHashes) == 0 {
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t.Error("Expected at least one blob to be created")
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}
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for _, blobHash := range blobHashes {
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// Check blob exists in mock S3
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exists, err := s3Client.BlobExists(ctx, blobHash)
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if err != nil {
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t.Errorf("Failed to check blob %s: %v", blobHash, err)
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}
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if !exists {
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t.Errorf("Blob %s not found in S3", blobHash)
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}
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}
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}
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func TestBackupDeduplication(t *testing.T) {
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// Create a temporary directory for the database
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tempDir := t.TempDir()
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dbPath := filepath.Join(tempDir, "test.db")
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// Create test filesystem with duplicate content
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testFS := fstest.MapFS{
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"file1.txt": &fstest.MapFile{
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Data: []byte("Duplicate content"),
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Mode: 0644,
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ModTime: time.Now(),
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},
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"file2.txt": &fstest.MapFile{
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Data: []byte("Duplicate content"),
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Mode: 0644,
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ModTime: time.Now(),
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},
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"file3.txt": &fstest.MapFile{
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Data: []byte("Unique content"),
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Mode: 0644,
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ModTime: time.Now(),
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},
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}
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// Initialize the database
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ctx := context.Background()
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db, err := database.New(ctx, dbPath)
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if err != nil {
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t.Fatalf("Failed to create database: %v", err)
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}
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defer func() {
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if err := db.Close(); err != nil {
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t.Logf("Failed to close database: %v", err)
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}
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}()
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repos := database.NewRepositories(db)
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// Create mock S3 client
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s3Client := NewMockS3Client()
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// Run backup
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backupEngine := &BackupEngine{
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repos: repos,
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s3Client: s3Client,
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}
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_, err = backupEngine.Backup(ctx, testFS, ".")
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if err != nil {
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t.Fatalf("Backup failed: %v", err)
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}
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// Verify deduplication
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chunks, err := repos.Chunks.List(ctx)
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if err != nil {
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t.Fatalf("Failed to list chunks: %v", err)
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}
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// Should have only 2 unique chunks (duplicate content + unique content)
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if len(chunks) != 2 {
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t.Errorf("Expected 2 unique chunks, got %d", len(chunks))
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}
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// Verify chunk references
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for _, chunk := range chunks {
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files, err := repos.ChunkFiles.GetByChunkHash(ctx, chunk.ChunkHash)
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if err != nil {
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t.Errorf("Failed to get files for chunk %s: %v", chunk.ChunkHash, err)
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}
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// The duplicate content chunk should be referenced by 2 files
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if chunk.Size == int64(len("Duplicate content")) && len(files) != 2 {
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t.Errorf("Expected duplicate chunk to be referenced by 2 files, got %d", len(files))
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}
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}
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}
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// BackupEngine performs backup operations
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type BackupEngine struct {
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repos *database.Repositories
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s3Client interface {
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PutBlob(ctx context.Context, hash string, data []byte) error
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BlobExists(ctx context.Context, hash string) (bool, error)
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}
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}
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// Backup performs a backup of the given filesystem
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func (b *BackupEngine) Backup(ctx context.Context, fsys fs.FS, root string) (string, error) {
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// Create a new snapshot
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hostname, _ := os.Hostname()
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snapshotID := time.Now().Format(time.RFC3339)
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snapshot := &database.Snapshot{
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ID: snapshotID,
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Hostname: hostname,
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VaultikVersion: "test",
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StartedAt: time.Now(),
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CompletedAt: nil,
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}
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// Create initial snapshot record
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err := b.repos.WithTx(ctx, func(ctx context.Context, tx *sql.Tx) error {
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return b.repos.Snapshots.Create(ctx, tx, snapshot)
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})
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if err != nil {
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return "", err
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}
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// Track counters
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var fileCount, chunkCount, blobCount, totalSize, blobSize int64
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// Track which chunks we've seen to handle deduplication
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processedChunks := make(map[string]bool)
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// Scan the filesystem and process files
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err = fs.WalkDir(fsys, root, func(path string, d fs.DirEntry, err error) error {
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if err != nil {
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return err
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}
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// Skip directories
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if d.IsDir() {
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return nil
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}
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// Get file info
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info, err := d.Info()
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if err != nil {
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return err
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}
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// Handle symlinks
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if info.Mode()&fs.ModeSymlink != 0 {
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// For testing, we'll skip symlinks since fstest doesn't support them well
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return nil
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}
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// Process this file in a transaction
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err = b.repos.WithTx(ctx, func(ctx context.Context, tx *sql.Tx) error {
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// Create file record
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file := &database.File{
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Path: path,
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Size: info.Size(),
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Mode: uint32(info.Mode()),
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MTime: info.ModTime(),
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CTime: info.ModTime(), // Use mtime as ctime for test
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UID: 1000, // Default UID for test
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GID: 1000, // Default GID for test
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}
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if err := b.repos.Files.Create(ctx, tx, file); err != nil {
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return err
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}
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fileCount++
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totalSize += info.Size()
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// Read and process file in chunks
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f, err := fsys.Open(path)
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if err != nil {
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return err
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}
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defer func() {
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if err := f.Close(); err != nil {
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// Log but don't fail since we're already in an error path potentially
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fmt.Fprintf(os.Stderr, "Failed to close file: %v\n", err)
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}
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}()
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// Process file in chunks
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chunkIndex := 0
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buffer := make([]byte, defaultChunkSize)
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for {
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n, err := f.Read(buffer)
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if err != nil && err != io.EOF {
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return err
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}
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if n == 0 {
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break
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}
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chunkData := buffer[:n]
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chunkHash := calculateHash(chunkData)
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// Check if chunk already exists
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existingChunk, _ := b.repos.Chunks.GetByHash(ctx, chunkHash)
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if existingChunk == nil {
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// Create new chunk
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chunk := &database.Chunk{
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ChunkHash: chunkHash,
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SHA256: chunkHash,
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Size: int64(n),
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}
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if err := b.repos.Chunks.Create(ctx, tx, chunk); err != nil {
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return err
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}
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processedChunks[chunkHash] = true
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}
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// Create file-chunk mapping
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fileChunk := &database.FileChunk{
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Path: path,
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Idx: chunkIndex,
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ChunkHash: chunkHash,
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}
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if err := b.repos.FileChunks.Create(ctx, tx, fileChunk); err != nil {
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return err
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}
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// Create chunk-file mapping
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chunkFile := &database.ChunkFile{
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ChunkHash: chunkHash,
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FilePath: path,
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FileOffset: int64(chunkIndex * defaultChunkSize),
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Length: int64(n),
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}
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if err := b.repos.ChunkFiles.Create(ctx, tx, chunkFile); err != nil {
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return err
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}
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chunkIndex++
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}
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|
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return nil
|
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})
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|
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return err
|
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})
|
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|
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if err != nil {
|
||||
return "", err
|
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}
|
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|
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// After all files are processed, create blobs for new chunks
|
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err = b.repos.WithTx(ctx, func(ctx context.Context, tx *sql.Tx) error {
|
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for chunkHash := range processedChunks {
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// Get chunk data
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chunk, err := b.repos.Chunks.GetByHash(ctx, chunkHash)
|
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if err != nil {
|
||||
return err
|
||||
}
|
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|
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chunkCount++
|
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|
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// In a real system, blobs would contain multiple chunks and be encrypted
|
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// For testing, we'll create a blob with a "blob-" prefix to differentiate
|
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blobHash := "blob-" + chunkHash
|
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|
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// For the test, we'll create dummy data since we don't have the original
|
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dummyData := []byte(chunkHash)
|
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|
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// Upload to S3 as a blob
|
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if err := b.s3Client.PutBlob(ctx, blobHash, dummyData); err != nil {
|
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return err
|
||||
}
|
||||
|
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// Create blob entry
|
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blob := &database.Blob{
|
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ID: "test-blob-" + blobHash[:8],
|
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Hash: blobHash,
|
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CreatedTS: time.Now(),
|
||||
}
|
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if err := b.repos.Blobs.Create(ctx, tx, blob); err != nil {
|
||||
return err
|
||||
}
|
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blobCount++
|
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blobSize += chunk.Size
|
||||
|
||||
// Create blob-chunk mapping
|
||||
blobChunk := &database.BlobChunk{
|
||||
BlobID: blob.ID,
|
||||
ChunkHash: chunkHash,
|
||||
Offset: 0,
|
||||
Length: chunk.Size,
|
||||
}
|
||||
if err := b.repos.BlobChunks.Create(ctx, tx, blobChunk); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
// Add blob to snapshot
|
||||
if err := b.repos.Snapshots.AddBlob(ctx, tx, snapshotID, blob.ID, blob.Hash); err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
return nil
|
||||
})
|
||||
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
|
||||
// Update snapshot with final counts
|
||||
err = b.repos.WithTx(ctx, func(ctx context.Context, tx *sql.Tx) error {
|
||||
return b.repos.Snapshots.UpdateCounts(ctx, tx, snapshotID, fileCount, chunkCount, blobCount, totalSize, blobSize)
|
||||
})
|
||||
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
|
||||
return snapshotID, nil
|
||||
}
|
||||
|
||||
func calculateHash(data []byte) string {
|
||||
h := sha256.New()
|
||||
h.Write(data)
|
||||
return fmt.Sprintf("%x", h.Sum(nil))
|
||||
}
|
||||
|
||||
func generateLargeFileContent(size int) []byte {
|
||||
data := make([]byte, size)
|
||||
// Fill with pattern that changes every chunk to avoid deduplication
|
||||
for i := 0; i < size; i++ {
|
||||
chunkNum := i / defaultChunkSize
|
||||
data[i] = byte((i + chunkNum) % 256)
|
||||
}
|
||||
return data
|
||||
}
|
||||
|
||||
const defaultChunkSize = 1024 * 1024 // 1MB chunks
|
||||
@@ -1,6 +1,39 @@
|
||||
package backup
|
||||
|
||||
import "go.uber.org/fx"
|
||||
import (
|
||||
"git.eeqj.de/sneak/vaultik/internal/config"
|
||||
"git.eeqj.de/sneak/vaultik/internal/database"
|
||||
"git.eeqj.de/sneak/vaultik/internal/s3"
|
||||
"github.com/spf13/afero"
|
||||
"go.uber.org/fx"
|
||||
)
|
||||
|
||||
// ScannerParams holds parameters for scanner creation
|
||||
type ScannerParams struct {
|
||||
EnableProgress bool
|
||||
}
|
||||
|
||||
// Module exports backup functionality
|
||||
var Module = fx.Module("backup")
|
||||
var Module = fx.Module("backup",
|
||||
fx.Provide(
|
||||
provideScannerFactory,
|
||||
),
|
||||
)
|
||||
|
||||
// ScannerFactory creates scanners with custom parameters
|
||||
type ScannerFactory func(params ScannerParams) *Scanner
|
||||
|
||||
func provideScannerFactory(cfg *config.Config, repos *database.Repositories, s3Client *s3.Client) ScannerFactory {
|
||||
return func(params ScannerParams) *Scanner {
|
||||
return NewScanner(ScannerConfig{
|
||||
FS: afero.NewOsFs(),
|
||||
ChunkSize: cfg.ChunkSize.Int64(),
|
||||
Repositories: repos,
|
||||
S3Client: s3Client,
|
||||
MaxBlobSize: cfg.BlobSizeLimit.Int64(),
|
||||
CompressionLevel: cfg.CompressionLevel,
|
||||
AgeRecipients: cfg.AgeRecipients,
|
||||
EnableProgress: params.EnableProgress,
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
389
internal/backup/progress.go
Normal file
389
internal/backup/progress.go
Normal file
@@ -0,0 +1,389 @@
|
||||
package backup
|
||||
|
||||
import (
|
||||
"context"
|
||||
"fmt"
|
||||
"os"
|
||||
"os/signal"
|
||||
"sync"
|
||||
"sync/atomic"
|
||||
"syscall"
|
||||
"time"
|
||||
|
||||
"git.eeqj.de/sneak/vaultik/internal/log"
|
||||
"github.com/dustin/go-humanize"
|
||||
)
|
||||
|
||||
const (
|
||||
// Progress reporting intervals
|
||||
SummaryInterval = 10 * time.Second // One-line status updates
|
||||
DetailInterval = 60 * time.Second // Multi-line detailed status
|
||||
)
|
||||
|
||||
// ProgressStats holds atomic counters for progress tracking
|
||||
type ProgressStats struct {
|
||||
FilesScanned atomic.Int64 // Total files seen during scan (includes skipped)
|
||||
FilesProcessed atomic.Int64 // Files actually processed in phase 2
|
||||
FilesSkipped atomic.Int64 // Files skipped due to no changes
|
||||
BytesScanned atomic.Int64 // Bytes from new/changed files only
|
||||
BytesSkipped atomic.Int64 // Bytes from unchanged files
|
||||
BytesProcessed atomic.Int64 // Actual bytes processed (for ETA calculation)
|
||||
ChunksCreated atomic.Int64
|
||||
BlobsCreated atomic.Int64
|
||||
BlobsUploaded atomic.Int64
|
||||
BytesUploaded atomic.Int64
|
||||
CurrentFile atomic.Value // stores string
|
||||
TotalSize atomic.Int64 // Total size to process (set after scan phase)
|
||||
TotalFiles atomic.Int64 // Total files to process in phase 2
|
||||
ProcessStartTime atomic.Value // stores time.Time when processing starts
|
||||
StartTime time.Time
|
||||
mu sync.RWMutex
|
||||
lastDetailTime time.Time
|
||||
|
||||
// Upload tracking
|
||||
CurrentUpload atomic.Value // stores *UploadInfo
|
||||
lastChunkingTime time.Time // Track when we last showed chunking progress
|
||||
}
|
||||
|
||||
// UploadInfo tracks current upload progress
|
||||
type UploadInfo struct {
|
||||
BlobHash string
|
||||
Size int64
|
||||
StartTime time.Time
|
||||
}
|
||||
|
||||
// ProgressReporter handles periodic progress reporting
|
||||
type ProgressReporter struct {
|
||||
stats *ProgressStats
|
||||
ctx context.Context
|
||||
cancel context.CancelFunc
|
||||
wg sync.WaitGroup
|
||||
detailTicker *time.Ticker
|
||||
summaryTicker *time.Ticker
|
||||
sigChan chan os.Signal
|
||||
}
|
||||
|
||||
// NewProgressReporter creates a new progress reporter
|
||||
func NewProgressReporter() *ProgressReporter {
|
||||
stats := &ProgressStats{
|
||||
StartTime: time.Now(),
|
||||
lastDetailTime: time.Now(),
|
||||
}
|
||||
stats.CurrentFile.Store("")
|
||||
|
||||
ctx, cancel := context.WithCancel(context.Background())
|
||||
|
||||
pr := &ProgressReporter{
|
||||
stats: stats,
|
||||
ctx: ctx,
|
||||
cancel: cancel,
|
||||
summaryTicker: time.NewTicker(SummaryInterval),
|
||||
detailTicker: time.NewTicker(DetailInterval),
|
||||
sigChan: make(chan os.Signal, 1),
|
||||
}
|
||||
|
||||
// Register for SIGUSR1
|
||||
signal.Notify(pr.sigChan, syscall.SIGUSR1)
|
||||
|
||||
return pr
|
||||
}
|
||||
|
||||
// Start begins the progress reporting
|
||||
func (pr *ProgressReporter) Start() {
|
||||
pr.wg.Add(1)
|
||||
go pr.run()
|
||||
|
||||
// Print initial multi-line status
|
||||
pr.printDetailedStatus()
|
||||
}
|
||||
|
||||
// Stop stops the progress reporting
|
||||
func (pr *ProgressReporter) Stop() {
|
||||
pr.cancel()
|
||||
pr.summaryTicker.Stop()
|
||||
pr.detailTicker.Stop()
|
||||
signal.Stop(pr.sigChan)
|
||||
close(pr.sigChan)
|
||||
pr.wg.Wait()
|
||||
}
|
||||
|
||||
// GetStats returns the progress stats for updating
|
||||
func (pr *ProgressReporter) GetStats() *ProgressStats {
|
||||
return pr.stats
|
||||
}
|
||||
|
||||
// SetTotalSize sets the total size to process (after scan phase)
|
||||
func (pr *ProgressReporter) SetTotalSize(size int64) {
|
||||
pr.stats.TotalSize.Store(size)
|
||||
pr.stats.ProcessStartTime.Store(time.Now())
|
||||
}
|
||||
|
||||
// run is the main progress reporting loop
|
||||
func (pr *ProgressReporter) run() {
|
||||
defer pr.wg.Done()
|
||||
|
||||
for {
|
||||
select {
|
||||
case <-pr.ctx.Done():
|
||||
return
|
||||
case <-pr.summaryTicker.C:
|
||||
pr.printSummaryStatus()
|
||||
case <-pr.detailTicker.C:
|
||||
pr.printDetailedStatus()
|
||||
case <-pr.sigChan:
|
||||
// SIGUSR1 received, print detailed status
|
||||
log.Info("SIGUSR1 received, printing detailed status")
|
||||
pr.printDetailedStatus()
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// printSummaryStatus prints a one-line status update
|
||||
func (pr *ProgressReporter) printSummaryStatus() {
|
||||
// Check if we're currently uploading
|
||||
if uploadInfo, ok := pr.stats.CurrentUpload.Load().(*UploadInfo); ok && uploadInfo != nil {
|
||||
// Show upload progress instead
|
||||
pr.printUploadProgress(uploadInfo)
|
||||
return
|
||||
}
|
||||
|
||||
// Only show chunking progress if we've done chunking recently
|
||||
pr.stats.mu.RLock()
|
||||
timeSinceLastChunk := time.Since(pr.stats.lastChunkingTime)
|
||||
pr.stats.mu.RUnlock()
|
||||
|
||||
if timeSinceLastChunk > SummaryInterval*2 {
|
||||
// No recent chunking activity, don't show progress
|
||||
return
|
||||
}
|
||||
|
||||
elapsed := time.Since(pr.stats.StartTime)
|
||||
bytesScanned := pr.stats.BytesScanned.Load()
|
||||
bytesSkipped := pr.stats.BytesSkipped.Load()
|
||||
bytesProcessed := pr.stats.BytesProcessed.Load()
|
||||
totalSize := pr.stats.TotalSize.Load()
|
||||
currentFile := pr.stats.CurrentFile.Load().(string)
|
||||
|
||||
// Calculate ETA if we have total size and are processing
|
||||
etaStr := ""
|
||||
if totalSize > 0 && bytesProcessed > 0 {
|
||||
processStart, ok := pr.stats.ProcessStartTime.Load().(time.Time)
|
||||
if ok && !processStart.IsZero() {
|
||||
processElapsed := time.Since(processStart)
|
||||
rate := float64(bytesProcessed) / processElapsed.Seconds()
|
||||
if rate > 0 {
|
||||
remainingBytes := totalSize - bytesProcessed
|
||||
remainingSeconds := float64(remainingBytes) / rate
|
||||
eta := time.Duration(remainingSeconds * float64(time.Second))
|
||||
etaStr = fmt.Sprintf(" | ETA: %s", formatDuration(eta))
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
rate := float64(bytesScanned+bytesSkipped) / elapsed.Seconds()
|
||||
|
||||
// Show files processed / total files to process
|
||||
filesProcessed := pr.stats.FilesProcessed.Load()
|
||||
totalFiles := pr.stats.TotalFiles.Load()
|
||||
|
||||
status := fmt.Sprintf("Progress: %d/%d files, %s/%s (%.1f%%), %s/s%s",
|
||||
filesProcessed,
|
||||
totalFiles,
|
||||
humanize.Bytes(uint64(bytesProcessed)),
|
||||
humanize.Bytes(uint64(totalSize)),
|
||||
float64(bytesProcessed)/float64(totalSize)*100,
|
||||
humanize.Bytes(uint64(rate)),
|
||||
etaStr,
|
||||
)
|
||||
|
||||
if currentFile != "" {
|
||||
status += fmt.Sprintf(" | Current: %s", truncatePath(currentFile, 40))
|
||||
}
|
||||
|
||||
log.Info(status)
|
||||
}
|
||||
|
||||
// printDetailedStatus prints a multi-line detailed status
|
||||
func (pr *ProgressReporter) printDetailedStatus() {
|
||||
pr.stats.mu.Lock()
|
||||
pr.stats.lastDetailTime = time.Now()
|
||||
pr.stats.mu.Unlock()
|
||||
|
||||
elapsed := time.Since(pr.stats.StartTime)
|
||||
filesScanned := pr.stats.FilesScanned.Load()
|
||||
filesSkipped := pr.stats.FilesSkipped.Load()
|
||||
bytesScanned := pr.stats.BytesScanned.Load()
|
||||
bytesSkipped := pr.stats.BytesSkipped.Load()
|
||||
bytesProcessed := pr.stats.BytesProcessed.Load()
|
||||
totalSize := pr.stats.TotalSize.Load()
|
||||
chunksCreated := pr.stats.ChunksCreated.Load()
|
||||
blobsCreated := pr.stats.BlobsCreated.Load()
|
||||
blobsUploaded := pr.stats.BlobsUploaded.Load()
|
||||
bytesUploaded := pr.stats.BytesUploaded.Load()
|
||||
currentFile := pr.stats.CurrentFile.Load().(string)
|
||||
|
||||
totalBytes := bytesScanned + bytesSkipped
|
||||
rate := float64(totalBytes) / elapsed.Seconds()
|
||||
|
||||
log.Notice("=== Backup Progress Report ===")
|
||||
log.Info("Elapsed time", "duration", formatDuration(elapsed))
|
||||
|
||||
// Calculate and show ETA if we have data
|
||||
if totalSize > 0 && bytesProcessed > 0 {
|
||||
processStart, ok := pr.stats.ProcessStartTime.Load().(time.Time)
|
||||
if ok && !processStart.IsZero() {
|
||||
processElapsed := time.Since(processStart)
|
||||
processRate := float64(bytesProcessed) / processElapsed.Seconds()
|
||||
if processRate > 0 {
|
||||
remainingBytes := totalSize - bytesProcessed
|
||||
remainingSeconds := float64(remainingBytes) / processRate
|
||||
eta := time.Duration(remainingSeconds * float64(time.Second))
|
||||
percentComplete := float64(bytesProcessed) / float64(totalSize) * 100
|
||||
log.Info("Overall progress",
|
||||
"percent", fmt.Sprintf("%.1f%%", percentComplete),
|
||||
"processed", humanize.Bytes(uint64(bytesProcessed)),
|
||||
"total", humanize.Bytes(uint64(totalSize)),
|
||||
"rate", humanize.Bytes(uint64(processRate))+"/s",
|
||||
"eta", formatDuration(eta))
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
log.Info("Files processed",
|
||||
"scanned", filesScanned,
|
||||
"skipped", filesSkipped,
|
||||
"total", filesScanned,
|
||||
"skip_rate", formatPercent(filesSkipped, filesScanned))
|
||||
log.Info("Data scanned",
|
||||
"new", humanize.Bytes(uint64(bytesScanned)),
|
||||
"skipped", humanize.Bytes(uint64(bytesSkipped)),
|
||||
"total", humanize.Bytes(uint64(totalBytes)),
|
||||
"scan_rate", humanize.Bytes(uint64(rate))+"/s")
|
||||
log.Info("Chunks created", "count", chunksCreated)
|
||||
log.Info("Blobs status",
|
||||
"created", blobsCreated,
|
||||
"uploaded", blobsUploaded,
|
||||
"pending", blobsCreated-blobsUploaded)
|
||||
log.Info("Upload progress",
|
||||
"uploaded", humanize.Bytes(uint64(bytesUploaded)),
|
||||
"compression_ratio", formatRatio(bytesUploaded, bytesScanned))
|
||||
if currentFile != "" {
|
||||
log.Info("Current file", "path", currentFile)
|
||||
}
|
||||
log.Notice("=============================")
|
||||
}
|
||||
|
||||
// Helper functions
|
||||
|
||||
func formatDuration(d time.Duration) string {
|
||||
if d < 0 {
|
||||
return "unknown"
|
||||
}
|
||||
if d < time.Minute {
|
||||
return fmt.Sprintf("%ds", int(d.Seconds()))
|
||||
}
|
||||
if d < time.Hour {
|
||||
return fmt.Sprintf("%dm%ds", int(d.Minutes()), int(d.Seconds())%60)
|
||||
}
|
||||
return fmt.Sprintf("%dh%dm", int(d.Hours()), int(d.Minutes())%60)
|
||||
}
|
||||
|
||||
func formatPercent(numerator, denominator int64) string {
|
||||
if denominator == 0 {
|
||||
return "0.0%"
|
||||
}
|
||||
return fmt.Sprintf("%.1f%%", float64(numerator)/float64(denominator)*100)
|
||||
}
|
||||
|
||||
func formatRatio(compressed, uncompressed int64) string {
|
||||
if uncompressed == 0 {
|
||||
return "1.00"
|
||||
}
|
||||
ratio := float64(compressed) / float64(uncompressed)
|
||||
return fmt.Sprintf("%.2f", ratio)
|
||||
}
|
||||
|
||||
func truncatePath(path string, maxLen int) string {
|
||||
if len(path) <= maxLen {
|
||||
return path
|
||||
}
|
||||
// Keep the last maxLen-3 characters and prepend "..."
|
||||
return "..." + path[len(path)-(maxLen-3):]
|
||||
}
|
||||
|
||||
// printUploadProgress prints upload progress
|
||||
func (pr *ProgressReporter) printUploadProgress(info *UploadInfo) {
|
||||
elapsed := time.Since(info.StartTime)
|
||||
if elapsed < time.Millisecond {
|
||||
elapsed = time.Millisecond // Avoid division by zero
|
||||
}
|
||||
|
||||
bytesPerSec := float64(info.Size) / elapsed.Seconds()
|
||||
bitsPerSec := bytesPerSec * 8
|
||||
|
||||
// Format speed in bits/second
|
||||
var speedStr string
|
||||
if bitsPerSec >= 1e9 {
|
||||
speedStr = fmt.Sprintf("%.1fGbit/sec", bitsPerSec/1e9)
|
||||
} else if bitsPerSec >= 1e6 {
|
||||
speedStr = fmt.Sprintf("%.0fMbit/sec", bitsPerSec/1e6)
|
||||
} else if bitsPerSec >= 1e3 {
|
||||
speedStr = fmt.Sprintf("%.0fKbit/sec", bitsPerSec/1e3)
|
||||
} else {
|
||||
speedStr = fmt.Sprintf("%.0fbit/sec", bitsPerSec)
|
||||
}
|
||||
|
||||
log.Info("Uploading blob",
|
||||
"hash", info.BlobHash[:8]+"...",
|
||||
"size", humanize.Bytes(uint64(info.Size)),
|
||||
"elapsed", formatDuration(elapsed),
|
||||
"speed", speedStr)
|
||||
}
|
||||
|
||||
// ReportUploadStart marks the beginning of a blob upload
|
||||
func (pr *ProgressReporter) ReportUploadStart(blobHash string, size int64) {
|
||||
info := &UploadInfo{
|
||||
BlobHash: blobHash,
|
||||
Size: size,
|
||||
StartTime: time.Now(),
|
||||
}
|
||||
pr.stats.CurrentUpload.Store(info)
|
||||
}
|
||||
|
||||
// ReportUploadComplete marks the completion of a blob upload
|
||||
func (pr *ProgressReporter) ReportUploadComplete(blobHash string, size int64, duration time.Duration) {
|
||||
// Clear current upload
|
||||
pr.stats.CurrentUpload.Store((*UploadInfo)(nil))
|
||||
|
||||
// Calculate speed
|
||||
if duration < time.Millisecond {
|
||||
duration = time.Millisecond
|
||||
}
|
||||
bytesPerSec := float64(size) / duration.Seconds()
|
||||
bitsPerSec := bytesPerSec * 8
|
||||
|
||||
// Format speed
|
||||
var speedStr string
|
||||
if bitsPerSec >= 1e9 {
|
||||
speedStr = fmt.Sprintf("%.1fGbit/sec", bitsPerSec/1e9)
|
||||
} else if bitsPerSec >= 1e6 {
|
||||
speedStr = fmt.Sprintf("%.0fMbit/sec", bitsPerSec/1e6)
|
||||
} else if bitsPerSec >= 1e3 {
|
||||
speedStr = fmt.Sprintf("%.0fKbit/sec", bitsPerSec/1e3)
|
||||
} else {
|
||||
speedStr = fmt.Sprintf("%.0fbit/sec", bitsPerSec)
|
||||
}
|
||||
|
||||
log.Info("Blob uploaded",
|
||||
"hash", blobHash[:8]+"...",
|
||||
"size", humanize.Bytes(uint64(size)),
|
||||
"duration", formatDuration(duration),
|
||||
"speed", speedStr)
|
||||
}
|
||||
|
||||
// UpdateChunkingActivity updates the last chunking time
|
||||
func (pr *ProgressReporter) UpdateChunkingActivity() {
|
||||
pr.stats.mu.Lock()
|
||||
pr.stats.lastChunkingTime = time.Now()
|
||||
pr.stats.mu.Unlock()
|
||||
}
|
||||
@@ -2,71 +2,197 @@ package backup
|
||||
|
||||
import (
|
||||
"context"
|
||||
"crypto/sha256"
|
||||
"database/sql"
|
||||
"encoding/hex"
|
||||
"fmt"
|
||||
"io"
|
||||
"os"
|
||||
"strings"
|
||||
"sync"
|
||||
"time"
|
||||
|
||||
"git.eeqj.de/sneak/vaultik/internal/blob"
|
||||
"git.eeqj.de/sneak/vaultik/internal/chunker"
|
||||
"git.eeqj.de/sneak/vaultik/internal/crypto"
|
||||
"git.eeqj.de/sneak/vaultik/internal/database"
|
||||
"git.eeqj.de/sneak/vaultik/internal/log"
|
||||
"github.com/dustin/go-humanize"
|
||||
"github.com/spf13/afero"
|
||||
)
|
||||
|
||||
// FileToProcess holds information about a file that needs processing
|
||||
type FileToProcess struct {
|
||||
Path string
|
||||
FileInfo os.FileInfo
|
||||
File *database.File
|
||||
}
|
||||
|
||||
// Scanner scans directories and populates the database with file and chunk information
|
||||
type Scanner struct {
|
||||
fs afero.Fs
|
||||
chunkSize int
|
||||
repos *database.Repositories
|
||||
fs afero.Fs
|
||||
chunker *chunker.Chunker
|
||||
packer *blob.Packer
|
||||
repos *database.Repositories
|
||||
s3Client S3Client
|
||||
maxBlobSize int64
|
||||
compressionLevel int
|
||||
ageRecipient string
|
||||
snapshotID string // Current snapshot being processed
|
||||
progress *ProgressReporter
|
||||
|
||||
// Mutex for coordinating blob creation
|
||||
packerMu sync.Mutex // Blocks chunk production during blob creation
|
||||
|
||||
// Context for cancellation
|
||||
scanCtx context.Context
|
||||
}
|
||||
|
||||
// S3Client interface for blob storage operations
|
||||
type S3Client interface {
|
||||
PutObject(ctx context.Context, key string, data io.Reader) error
|
||||
}
|
||||
|
||||
// ScannerConfig contains configuration for the scanner
|
||||
type ScannerConfig struct {
|
||||
FS afero.Fs
|
||||
ChunkSize int
|
||||
Repositories *database.Repositories
|
||||
FS afero.Fs
|
||||
ChunkSize int64
|
||||
Repositories *database.Repositories
|
||||
S3Client S3Client
|
||||
MaxBlobSize int64
|
||||
CompressionLevel int
|
||||
AgeRecipients []string // Optional, empty means no encryption
|
||||
EnableProgress bool // Enable progress reporting
|
||||
}
|
||||
|
||||
// ScanResult contains the results of a scan operation
|
||||
type ScanResult struct {
|
||||
FilesScanned int
|
||||
BytesScanned int64
|
||||
StartTime time.Time
|
||||
EndTime time.Time
|
||||
FilesScanned int
|
||||
FilesSkipped int
|
||||
BytesScanned int64
|
||||
BytesSkipped int64
|
||||
ChunksCreated int
|
||||
BlobsCreated int
|
||||
StartTime time.Time
|
||||
EndTime time.Time
|
||||
}
|
||||
|
||||
// NewScanner creates a new scanner instance
|
||||
func NewScanner(cfg ScannerConfig) *Scanner {
|
||||
// Create encryptor (required for blob packing)
|
||||
if len(cfg.AgeRecipients) == 0 {
|
||||
log.Error("No age recipients configured - encryption is required")
|
||||
return nil
|
||||
}
|
||||
|
||||
enc, err := crypto.NewEncryptor(cfg.AgeRecipients)
|
||||
if err != nil {
|
||||
log.Error("Failed to create encryptor", "error", err)
|
||||
return nil
|
||||
}
|
||||
|
||||
// Create blob packer with encryption
|
||||
packerCfg := blob.PackerConfig{
|
||||
MaxBlobSize: cfg.MaxBlobSize,
|
||||
CompressionLevel: cfg.CompressionLevel,
|
||||
Encryptor: enc,
|
||||
Repositories: cfg.Repositories,
|
||||
}
|
||||
packer, err := blob.NewPacker(packerCfg)
|
||||
if err != nil {
|
||||
log.Error("Failed to create packer", "error", err)
|
||||
return nil
|
||||
}
|
||||
|
||||
var progress *ProgressReporter
|
||||
if cfg.EnableProgress {
|
||||
progress = NewProgressReporter()
|
||||
}
|
||||
|
||||
return &Scanner{
|
||||
fs: cfg.FS,
|
||||
chunkSize: cfg.ChunkSize,
|
||||
repos: cfg.Repositories,
|
||||
fs: cfg.FS,
|
||||
chunker: chunker.NewChunker(cfg.ChunkSize),
|
||||
packer: packer,
|
||||
repos: cfg.Repositories,
|
||||
s3Client: cfg.S3Client,
|
||||
maxBlobSize: cfg.MaxBlobSize,
|
||||
compressionLevel: cfg.CompressionLevel,
|
||||
ageRecipient: strings.Join(cfg.AgeRecipients, ","),
|
||||
progress: progress,
|
||||
}
|
||||
}
|
||||
|
||||
// Scan scans a directory and populates the database
|
||||
func (s *Scanner) Scan(ctx context.Context, path string) (*ScanResult, error) {
|
||||
func (s *Scanner) Scan(ctx context.Context, path string, snapshotID string) (*ScanResult, error) {
|
||||
s.snapshotID = snapshotID
|
||||
s.scanCtx = ctx
|
||||
result := &ScanResult{
|
||||
StartTime: time.Now(),
|
||||
}
|
||||
|
||||
// Start a transaction
|
||||
err := s.repos.WithTx(ctx, func(ctx context.Context, tx *sql.Tx) error {
|
||||
return s.scanDirectory(ctx, tx, path, result)
|
||||
})
|
||||
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("scan failed: %w", err)
|
||||
// Set blob handler for concurrent upload
|
||||
if s.s3Client != nil {
|
||||
log.Debug("Setting blob handler for S3 uploads")
|
||||
s.packer.SetBlobHandler(s.handleBlobReady)
|
||||
} else {
|
||||
log.Debug("No S3 client configured, blobs will not be uploaded")
|
||||
}
|
||||
|
||||
// Start progress reporting if enabled
|
||||
if s.progress != nil {
|
||||
s.progress.Start()
|
||||
defer s.progress.Stop()
|
||||
}
|
||||
|
||||
// Phase 1: Scan directory and collect files to process
|
||||
log.Info("Phase 1: Scanning directory structure")
|
||||
filesToProcess, err := s.scanPhase(ctx, path, result)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("scan phase failed: %w", err)
|
||||
}
|
||||
|
||||
// Calculate total size to process
|
||||
var totalSizeToProcess int64
|
||||
for _, file := range filesToProcess {
|
||||
totalSizeToProcess += file.FileInfo.Size()
|
||||
}
|
||||
|
||||
// Update progress with total size and file count
|
||||
if s.progress != nil {
|
||||
s.progress.SetTotalSize(totalSizeToProcess)
|
||||
s.progress.GetStats().TotalFiles.Store(int64(len(filesToProcess)))
|
||||
}
|
||||
|
||||
log.Info("Phase 1 complete",
|
||||
"total_files", len(filesToProcess),
|
||||
"total_size", humanize.Bytes(uint64(totalSizeToProcess)),
|
||||
"files_skipped", result.FilesSkipped,
|
||||
"bytes_skipped", humanize.Bytes(uint64(result.BytesSkipped)))
|
||||
|
||||
// Phase 2: Process files and create chunks
|
||||
if len(filesToProcess) > 0 {
|
||||
log.Info("Phase 2: Processing files and creating chunks")
|
||||
if err := s.processPhase(ctx, filesToProcess, result); err != nil {
|
||||
return nil, fmt.Errorf("process phase failed: %w", err)
|
||||
}
|
||||
}
|
||||
|
||||
// Get final stats from packer
|
||||
blobs := s.packer.GetFinishedBlobs()
|
||||
result.BlobsCreated += len(blobs)
|
||||
|
||||
result.EndTime = time.Now()
|
||||
return result, nil
|
||||
}
|
||||
|
||||
func (s *Scanner) scanDirectory(ctx context.Context, tx *sql.Tx, path string, result *ScanResult) error {
|
||||
return afero.Walk(s.fs, path, func(path string, info os.FileInfo, err error) error {
|
||||
// scanPhase performs the initial directory scan to identify files to process
|
||||
func (s *Scanner) scanPhase(ctx context.Context, path string, result *ScanResult) ([]*FileToProcess, error) {
|
||||
var filesToProcess []*FileToProcess
|
||||
var mu sync.Mutex
|
||||
|
||||
log.Debug("Starting directory walk", "path", path)
|
||||
err := afero.Walk(s.fs, path, func(path string, info os.FileInfo, err error) error {
|
||||
log.Debug("Walking file", "path", path)
|
||||
if err != nil {
|
||||
log.Debug("Error walking path", "path", path, "error", err)
|
||||
return err
|
||||
}
|
||||
|
||||
@@ -77,21 +203,108 @@ func (s *Scanner) scanDirectory(ctx context.Context, tx *sql.Tx, path string, re
|
||||
default:
|
||||
}
|
||||
|
||||
// Skip directories
|
||||
if info.IsDir() {
|
||||
return nil
|
||||
// Check file and update metadata
|
||||
file, needsProcessing, err := s.checkFileAndUpdateMetadata(ctx, path, info, result)
|
||||
if err != nil {
|
||||
// Don't log context cancellation as an error
|
||||
if err == context.Canceled {
|
||||
return err
|
||||
}
|
||||
return fmt.Errorf("failed to check %s: %w", path, err)
|
||||
}
|
||||
|
||||
// Process the file
|
||||
if err := s.processFile(ctx, tx, path, info, result); err != nil {
|
||||
return fmt.Errorf("failed to process %s: %w", path, err)
|
||||
// If file needs processing, add to list
|
||||
if needsProcessing && info.Mode().IsRegular() && info.Size() > 0 {
|
||||
mu.Lock()
|
||||
filesToProcess = append(filesToProcess, &FileToProcess{
|
||||
Path: path,
|
||||
FileInfo: info,
|
||||
File: file,
|
||||
})
|
||||
mu.Unlock()
|
||||
}
|
||||
|
||||
return nil
|
||||
})
|
||||
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
return filesToProcess, nil
|
||||
}
|
||||
|
||||
func (s *Scanner) processFile(ctx context.Context, tx *sql.Tx, path string, info os.FileInfo, result *ScanResult) error {
|
||||
// processPhase processes the files that need backing up
|
||||
func (s *Scanner) processPhase(ctx context.Context, filesToProcess []*FileToProcess, result *ScanResult) error {
|
||||
// Process each file
|
||||
for _, fileToProcess := range filesToProcess {
|
||||
// Update progress
|
||||
if s.progress != nil {
|
||||
s.progress.GetStats().CurrentFile.Store(fileToProcess.Path)
|
||||
}
|
||||
|
||||
// Process file in streaming fashion
|
||||
if err := s.processFileStreaming(ctx, fileToProcess, result); err != nil {
|
||||
return fmt.Errorf("processing file %s: %w", fileToProcess.Path, err)
|
||||
}
|
||||
|
||||
// Update files processed counter
|
||||
if s.progress != nil {
|
||||
s.progress.GetStats().FilesProcessed.Add(1)
|
||||
}
|
||||
}
|
||||
|
||||
// Final flush (outside any transaction)
|
||||
s.packerMu.Lock()
|
||||
if err := s.packer.Flush(); err != nil {
|
||||
s.packerMu.Unlock()
|
||||
return fmt.Errorf("flushing packer: %w", err)
|
||||
}
|
||||
s.packerMu.Unlock()
|
||||
|
||||
// If no S3 client, store any remaining blobs
|
||||
if s.s3Client == nil {
|
||||
blobs := s.packer.GetFinishedBlobs()
|
||||
for _, b := range blobs {
|
||||
// Blob metadata is already stored incrementally during packing
|
||||
// Just add the blob to the snapshot
|
||||
err := s.repos.WithTx(ctx, func(ctx context.Context, tx *sql.Tx) error {
|
||||
return s.repos.Snapshots.AddBlob(ctx, tx, s.snapshotID, b.ID, b.Hash)
|
||||
})
|
||||
if err != nil {
|
||||
return fmt.Errorf("storing blob metadata: %w", err)
|
||||
}
|
||||
}
|
||||
result.BlobsCreated += len(blobs)
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// checkFileAndUpdateMetadata checks if a file needs processing and updates metadata
|
||||
func (s *Scanner) checkFileAndUpdateMetadata(ctx context.Context, path string, info os.FileInfo, result *ScanResult) (*database.File, bool, error) {
|
||||
// Check context cancellation
|
||||
select {
|
||||
case <-ctx.Done():
|
||||
return nil, false, ctx.Err()
|
||||
default:
|
||||
}
|
||||
|
||||
var file *database.File
|
||||
var needsProcessing bool
|
||||
|
||||
// Use a short transaction just for the database operations
|
||||
err := s.repos.WithTx(ctx, func(txCtx context.Context, tx *sql.Tx) error {
|
||||
var err error
|
||||
file, needsProcessing, err = s.checkFile(txCtx, tx, path, info, result)
|
||||
return err
|
||||
})
|
||||
|
||||
return file, needsProcessing, err
|
||||
}
|
||||
|
||||
// checkFile checks if a file needs processing and updates metadata within a transaction
|
||||
func (s *Scanner) checkFile(ctx context.Context, tx *sql.Tx, path string, info os.FileInfo, result *ScanResult) (*database.File, bool, error) {
|
||||
// Get file stats
|
||||
stat, ok := info.Sys().(interface {
|
||||
Uid() uint32
|
||||
@@ -125,92 +338,378 @@ func (s *Scanner) processFile(ctx context.Context, tx *sql.Tx, path string, info
|
||||
LinkTarget: linkTarget,
|
||||
}
|
||||
|
||||
// Insert file
|
||||
if err := s.repos.Files.Create(ctx, tx, file); err != nil {
|
||||
return err
|
||||
// Check if file has changed since last backup
|
||||
log.Debug("Checking if file exists in database", "path", path)
|
||||
existingFile, err := s.repos.Files.GetByPathTx(ctx, tx, path)
|
||||
if err != nil {
|
||||
return nil, false, fmt.Errorf("checking existing file: %w", err)
|
||||
}
|
||||
|
||||
fileChanged := existingFile == nil || s.hasFileChanged(existingFile, file)
|
||||
|
||||
// Always update file metadata
|
||||
log.Debug("Updating file metadata", "path", path, "changed", fileChanged)
|
||||
if err := s.repos.Files.Create(ctx, tx, file); err != nil {
|
||||
return nil, false, err
|
||||
}
|
||||
log.Debug("File metadata updated", "path", path)
|
||||
|
||||
// Add file to snapshot
|
||||
log.Debug("Adding file to snapshot", "path", path, "snapshot", s.snapshotID)
|
||||
if err := s.repos.Snapshots.AddFile(ctx, tx, s.snapshotID, path); err != nil {
|
||||
return nil, false, fmt.Errorf("adding file to snapshot: %w", err)
|
||||
}
|
||||
log.Debug("File added to snapshot", "path", path)
|
||||
|
||||
result.FilesScanned++
|
||||
result.BytesScanned += info.Size()
|
||||
|
||||
// Process chunks only for regular files
|
||||
if info.Mode().IsRegular() && info.Size() > 0 {
|
||||
if err := s.processFileChunks(ctx, tx, path, result); err != nil {
|
||||
return err
|
||||
// Update progress
|
||||
if s.progress != nil {
|
||||
stats := s.progress.GetStats()
|
||||
stats.FilesScanned.Add(1)
|
||||
stats.CurrentFile.Store(path)
|
||||
}
|
||||
|
||||
// Track skipped files
|
||||
if info.Mode().IsRegular() && info.Size() > 0 && !fileChanged {
|
||||
result.FilesSkipped++
|
||||
result.BytesSkipped += info.Size()
|
||||
if s.progress != nil {
|
||||
stats := s.progress.GetStats()
|
||||
stats.FilesSkipped.Add(1)
|
||||
stats.BytesSkipped.Add(info.Size())
|
||||
}
|
||||
// File hasn't changed, but we still need to associate existing chunks with this snapshot
|
||||
log.Debug("File hasn't changed, associating existing chunks", "path", path)
|
||||
if err := s.associateExistingChunks(ctx, tx, path); err != nil {
|
||||
return nil, false, fmt.Errorf("associating existing chunks: %w", err)
|
||||
}
|
||||
log.Debug("Existing chunks associated", "path", path)
|
||||
} else {
|
||||
// File changed or is not a regular file
|
||||
result.BytesScanned += info.Size()
|
||||
if s.progress != nil {
|
||||
s.progress.GetStats().BytesScanned.Add(info.Size())
|
||||
}
|
||||
}
|
||||
|
||||
return nil
|
||||
return file, fileChanged, nil
|
||||
}
|
||||
|
||||
func (s *Scanner) processFileChunks(ctx context.Context, tx *sql.Tx, path string, result *ScanResult) error {
|
||||
file, err := s.fs.Open(path)
|
||||
// hasFileChanged determines if a file has changed since last backup
|
||||
func (s *Scanner) hasFileChanged(existingFile, newFile *database.File) bool {
|
||||
// Check if any metadata has changed
|
||||
if existingFile.Size != newFile.Size {
|
||||
return true
|
||||
}
|
||||
if existingFile.MTime.Unix() != newFile.MTime.Unix() {
|
||||
return true
|
||||
}
|
||||
if existingFile.Mode != newFile.Mode {
|
||||
return true
|
||||
}
|
||||
if existingFile.UID != newFile.UID {
|
||||
return true
|
||||
}
|
||||
if existingFile.GID != newFile.GID {
|
||||
return true
|
||||
}
|
||||
if existingFile.LinkTarget != newFile.LinkTarget {
|
||||
return true
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
// associateExistingChunks links existing chunks from an unchanged file to the current snapshot
|
||||
func (s *Scanner) associateExistingChunks(ctx context.Context, tx *sql.Tx, path string) error {
|
||||
log.Debug("associateExistingChunks start", "path", path)
|
||||
|
||||
// Get existing file chunks
|
||||
log.Debug("Getting existing file chunks", "path", path)
|
||||
fileChunks, err := s.repos.FileChunks.GetByFileTx(ctx, tx, path)
|
||||
if err != nil {
|
||||
return err
|
||||
return fmt.Errorf("getting existing file chunks: %w", err)
|
||||
}
|
||||
defer func() {
|
||||
if err := file.Close(); err != nil {
|
||||
database.Fatal("failed to close file %s: %v", path, err)
|
||||
log.Debug("Got file chunks", "path", path, "count", len(fileChunks))
|
||||
|
||||
// For each chunk, find its blob and associate with current snapshot
|
||||
processedBlobs := make(map[string]bool)
|
||||
for i, fc := range fileChunks {
|
||||
log.Debug("Processing chunk", "path", path, "chunk_index", i, "chunk_hash", fc.ChunkHash)
|
||||
|
||||
// Find which blob contains this chunk
|
||||
log.Debug("Finding blob for chunk", "chunk_hash", fc.ChunkHash)
|
||||
blobChunk, err := s.repos.BlobChunks.GetByChunkHashTx(ctx, tx, fc.ChunkHash)
|
||||
if err != nil {
|
||||
return fmt.Errorf("finding blob for chunk %s: %w", fc.ChunkHash, err)
|
||||
}
|
||||
}()
|
||||
if blobChunk == nil {
|
||||
log.Warn("Chunk exists but not in any blob", "chunk", fc.ChunkHash, "file", path)
|
||||
continue
|
||||
}
|
||||
log.Debug("Found blob for chunk", "chunk_hash", fc.ChunkHash, "blob_id", blobChunk.BlobID)
|
||||
|
||||
sequence := 0
|
||||
buffer := make([]byte, s.chunkSize)
|
||||
|
||||
for {
|
||||
n, err := io.ReadFull(file, buffer)
|
||||
if err != nil && err != io.EOF && err != io.ErrUnexpectedEOF {
|
||||
return err
|
||||
// Get blob to find its hash
|
||||
blob, err := s.repos.Blobs.GetByID(ctx, blobChunk.BlobID)
|
||||
if err != nil {
|
||||
return fmt.Errorf("getting blob %s: %w", blobChunk.BlobID, err)
|
||||
}
|
||||
if blob == nil {
|
||||
log.Warn("Blob record not found", "blob_id", blobChunk.BlobID)
|
||||
continue
|
||||
}
|
||||
|
||||
if n == 0 {
|
||||
break
|
||||
}
|
||||
|
||||
// Calculate chunk hash
|
||||
h := sha256.New()
|
||||
h.Write(buffer[:n])
|
||||
hash := hex.EncodeToString(h.Sum(nil))
|
||||
|
||||
// Create chunk if it doesn't exist
|
||||
chunk := &database.Chunk{
|
||||
ChunkHash: hash,
|
||||
SHA256: hash, // Using same hash for now
|
||||
Size: int64(n),
|
||||
}
|
||||
|
||||
// Try to insert chunk (ignore duplicate errors)
|
||||
_ = s.repos.Chunks.Create(ctx, tx, chunk)
|
||||
|
||||
// Create file-chunk mapping
|
||||
fileChunk := &database.FileChunk{
|
||||
Path: path,
|
||||
ChunkHash: hash,
|
||||
Idx: sequence,
|
||||
}
|
||||
|
||||
if err := s.repos.FileChunks.Create(ctx, tx, fileChunk); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
// Create chunk-file mapping
|
||||
chunkFile := &database.ChunkFile{
|
||||
ChunkHash: hash,
|
||||
FilePath: path,
|
||||
FileOffset: int64(sequence * s.chunkSize),
|
||||
Length: int64(n),
|
||||
}
|
||||
|
||||
if err := s.repos.ChunkFiles.Create(ctx, tx, chunkFile); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
sequence++
|
||||
|
||||
if err == io.EOF || err == io.ErrUnexpectedEOF {
|
||||
break
|
||||
// Add blob to snapshot if not already processed
|
||||
if !processedBlobs[blobChunk.BlobID] {
|
||||
log.Debug("Adding blob to snapshot", "blob_id", blobChunk.BlobID, "blob_hash", blob.Hash, "snapshot", s.snapshotID)
|
||||
if err := s.repos.Snapshots.AddBlob(ctx, tx, s.snapshotID, blobChunk.BlobID, blob.Hash); err != nil {
|
||||
return fmt.Errorf("adding existing blob to snapshot: %w", err)
|
||||
}
|
||||
log.Debug("Added blob to snapshot", "blob_id", blobChunk.BlobID)
|
||||
processedBlobs[blobChunk.BlobID] = true
|
||||
}
|
||||
}
|
||||
|
||||
log.Debug("associateExistingChunks complete", "path", path, "blobs_processed", len(processedBlobs))
|
||||
return nil
|
||||
}
|
||||
|
||||
// handleBlobReady is called by the packer when a blob is finalized
|
||||
func (s *Scanner) handleBlobReady(blobWithReader *blob.BlobWithReader) error {
|
||||
log.Debug("Blob handler called", "blob_hash", blobWithReader.Hash[:8]+"...")
|
||||
|
||||
startTime := time.Now()
|
||||
finishedBlob := blobWithReader.FinishedBlob
|
||||
|
||||
// Report upload start
|
||||
if s.progress != nil {
|
||||
s.progress.ReportUploadStart(finishedBlob.Hash, finishedBlob.Compressed)
|
||||
}
|
||||
|
||||
// Upload to S3 first (without holding any locks)
|
||||
// Use scan context for cancellation support
|
||||
ctx := s.scanCtx
|
||||
if ctx == nil {
|
||||
ctx = context.Background()
|
||||
}
|
||||
if err := s.s3Client.PutObject(ctx, "blobs/"+finishedBlob.Hash, blobWithReader.Reader); err != nil {
|
||||
return fmt.Errorf("uploading blob %s to S3: %w", finishedBlob.Hash, err)
|
||||
}
|
||||
|
||||
uploadDuration := time.Since(startTime)
|
||||
|
||||
// Report upload complete
|
||||
if s.progress != nil {
|
||||
s.progress.ReportUploadComplete(finishedBlob.Hash, finishedBlob.Compressed, uploadDuration)
|
||||
}
|
||||
|
||||
// Update progress
|
||||
if s.progress != nil {
|
||||
stats := s.progress.GetStats()
|
||||
stats.BlobsUploaded.Add(1)
|
||||
stats.BytesUploaded.Add(finishedBlob.Compressed)
|
||||
stats.BlobsCreated.Add(1)
|
||||
}
|
||||
|
||||
// Store metadata in database (after upload is complete)
|
||||
dbCtx := s.scanCtx
|
||||
if dbCtx == nil {
|
||||
dbCtx = context.Background()
|
||||
}
|
||||
err := s.repos.WithTx(dbCtx, func(ctx context.Context, tx *sql.Tx) error {
|
||||
// Update blob upload timestamp
|
||||
if err := s.repos.Blobs.UpdateUploaded(ctx, tx, finishedBlob.ID); err != nil {
|
||||
return fmt.Errorf("updating blob upload timestamp: %w", err)
|
||||
}
|
||||
|
||||
// Add the blob to the snapshot
|
||||
if err := s.repos.Snapshots.AddBlob(ctx, tx, s.snapshotID, finishedBlob.ID, finishedBlob.Hash); err != nil {
|
||||
return fmt.Errorf("adding blob to snapshot: %w", err)
|
||||
}
|
||||
|
||||
// Record upload metrics
|
||||
upload := &database.Upload{
|
||||
BlobHash: finishedBlob.Hash,
|
||||
UploadedAt: startTime,
|
||||
Size: finishedBlob.Compressed,
|
||||
DurationMs: uploadDuration.Milliseconds(),
|
||||
}
|
||||
if err := s.repos.Uploads.Create(ctx, tx, upload); err != nil {
|
||||
return fmt.Errorf("recording upload metrics: %w", err)
|
||||
}
|
||||
|
||||
return nil
|
||||
})
|
||||
|
||||
// Cleanup temp file if needed
|
||||
if blobWithReader.TempFile != nil {
|
||||
tempName := blobWithReader.TempFile.Name()
|
||||
if err := blobWithReader.TempFile.Close(); err != nil {
|
||||
log.Fatal("Failed to close temp file", "file", tempName, "error", err)
|
||||
}
|
||||
if err := os.Remove(tempName); err != nil {
|
||||
log.Fatal("Failed to remove temp file", "file", tempName, "error", err)
|
||||
}
|
||||
}
|
||||
|
||||
return err
|
||||
}
|
||||
|
||||
// processFileStreaming processes a file by streaming chunks directly to the packer
|
||||
func (s *Scanner) processFileStreaming(ctx context.Context, fileToProcess *FileToProcess, result *ScanResult) error {
|
||||
// Open the file
|
||||
file, err := s.fs.Open(fileToProcess.Path)
|
||||
if err != nil {
|
||||
return fmt.Errorf("opening file: %w", err)
|
||||
}
|
||||
defer func() { _ = file.Close() }()
|
||||
|
||||
// We'll collect file chunks for database storage
|
||||
// but process them for packing as we go
|
||||
type chunkInfo struct {
|
||||
fileChunk database.FileChunk
|
||||
offset int64
|
||||
size int64
|
||||
}
|
||||
var chunks []chunkInfo
|
||||
chunkIndex := 0
|
||||
|
||||
// Process chunks in streaming fashion
|
||||
err = s.chunker.ChunkReaderStreaming(file, func(chunk chunker.Chunk) error {
|
||||
// Check for cancellation
|
||||
select {
|
||||
case <-ctx.Done():
|
||||
return ctx.Err()
|
||||
default:
|
||||
}
|
||||
|
||||
log.Debug("Processing chunk",
|
||||
"file", fileToProcess.Path,
|
||||
"chunk", chunkIndex,
|
||||
"hash", chunk.Hash,
|
||||
"size", chunk.Size)
|
||||
|
||||
// Check if chunk already exists
|
||||
chunkExists := false
|
||||
err := s.repos.WithTx(ctx, func(txCtx context.Context, tx *sql.Tx) error {
|
||||
existing, err := s.repos.Chunks.GetByHash(txCtx, chunk.Hash)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
chunkExists = (existing != nil)
|
||||
|
||||
// Store chunk if new
|
||||
if !chunkExists {
|
||||
dbChunk := &database.Chunk{
|
||||
ChunkHash: chunk.Hash,
|
||||
SHA256: chunk.Hash,
|
||||
Size: chunk.Size,
|
||||
}
|
||||
if err := s.repos.Chunks.Create(txCtx, tx, dbChunk); err != nil {
|
||||
return fmt.Errorf("creating chunk: %w", err)
|
||||
}
|
||||
}
|
||||
return nil
|
||||
})
|
||||
if err != nil {
|
||||
return fmt.Errorf("checking/storing chunk: %w", err)
|
||||
}
|
||||
|
||||
// Track file chunk association for later storage
|
||||
chunks = append(chunks, chunkInfo{
|
||||
fileChunk: database.FileChunk{
|
||||
Path: fileToProcess.Path,
|
||||
Idx: chunkIndex,
|
||||
ChunkHash: chunk.Hash,
|
||||
},
|
||||
offset: chunk.Offset,
|
||||
size: chunk.Size,
|
||||
})
|
||||
|
||||
// Update stats
|
||||
if chunkExists {
|
||||
result.FilesSkipped++ // Track as skipped for now
|
||||
result.BytesSkipped += chunk.Size
|
||||
if s.progress != nil {
|
||||
s.progress.GetStats().BytesSkipped.Add(chunk.Size)
|
||||
}
|
||||
} else {
|
||||
result.ChunksCreated++
|
||||
result.BytesScanned += chunk.Size
|
||||
if s.progress != nil {
|
||||
s.progress.GetStats().ChunksCreated.Add(1)
|
||||
s.progress.GetStats().BytesProcessed.Add(chunk.Size)
|
||||
s.progress.UpdateChunkingActivity()
|
||||
}
|
||||
}
|
||||
|
||||
// Add chunk to packer immediately (streaming)
|
||||
// This happens outside the database transaction
|
||||
if !chunkExists {
|
||||
s.packerMu.Lock()
|
||||
err := s.packer.AddChunk(&blob.ChunkRef{
|
||||
Hash: chunk.Hash,
|
||||
Data: chunk.Data,
|
||||
})
|
||||
if err == blob.ErrBlobSizeLimitExceeded {
|
||||
// Finalize current blob and retry
|
||||
if err := s.packer.FinalizeBlob(); err != nil {
|
||||
s.packerMu.Unlock()
|
||||
return fmt.Errorf("finalizing blob: %w", err)
|
||||
}
|
||||
// Retry adding the chunk
|
||||
if err := s.packer.AddChunk(&blob.ChunkRef{
|
||||
Hash: chunk.Hash,
|
||||
Data: chunk.Data,
|
||||
}); err != nil {
|
||||
s.packerMu.Unlock()
|
||||
return fmt.Errorf("adding chunk after finalize: %w", err)
|
||||
}
|
||||
} else if err != nil {
|
||||
s.packerMu.Unlock()
|
||||
return fmt.Errorf("adding chunk to packer: %w", err)
|
||||
}
|
||||
s.packerMu.Unlock()
|
||||
}
|
||||
|
||||
// Clear chunk data from memory immediately after use
|
||||
chunk.Data = nil
|
||||
|
||||
chunkIndex++
|
||||
return nil
|
||||
})
|
||||
|
||||
if err != nil {
|
||||
return fmt.Errorf("chunking file: %w", err)
|
||||
}
|
||||
|
||||
// Store file-chunk associations and chunk-file mappings in database
|
||||
err = s.repos.WithTx(ctx, func(txCtx context.Context, tx *sql.Tx) error {
|
||||
for _, ci := range chunks {
|
||||
// Create file-chunk mapping
|
||||
if err := s.repos.FileChunks.Create(txCtx, tx, &ci.fileChunk); err != nil {
|
||||
return fmt.Errorf("creating file chunk: %w", err)
|
||||
}
|
||||
|
||||
// Create chunk-file mapping
|
||||
chunkFile := &database.ChunkFile{
|
||||
ChunkHash: ci.fileChunk.ChunkHash,
|
||||
FilePath: fileToProcess.Path,
|
||||
FileOffset: ci.offset,
|
||||
Length: ci.size,
|
||||
}
|
||||
if err := s.repos.ChunkFiles.Create(txCtx, tx, chunkFile); err != nil {
|
||||
return fmt.Errorf("creating chunk file: %w", err)
|
||||
}
|
||||
}
|
||||
|
||||
// Add file to snapshot
|
||||
if err := s.repos.Snapshots.AddFile(txCtx, tx, s.snapshotID, fileToProcess.Path); err != nil {
|
||||
return fmt.Errorf("adding file to snapshot: %w", err)
|
||||
}
|
||||
|
||||
return nil
|
||||
})
|
||||
|
||||
return err
|
||||
}
|
||||
|
||||
@@ -2,16 +2,21 @@ package backup_test
|
||||
|
||||
import (
|
||||
"context"
|
||||
"database/sql"
|
||||
"path/filepath"
|
||||
"testing"
|
||||
"time"
|
||||
|
||||
"git.eeqj.de/sneak/vaultik/internal/backup"
|
||||
"git.eeqj.de/sneak/vaultik/internal/database"
|
||||
"git.eeqj.de/sneak/vaultik/internal/log"
|
||||
"github.com/spf13/afero"
|
||||
)
|
||||
|
||||
func TestScannerSimpleDirectory(t *testing.T) {
|
||||
// Initialize logger for tests
|
||||
log.Initialize(log.Config{})
|
||||
|
||||
// Create in-memory filesystem
|
||||
fs := afero.NewMemMapFs()
|
||||
|
||||
@@ -56,25 +61,53 @@ func TestScannerSimpleDirectory(t *testing.T) {
|
||||
|
||||
// Create scanner
|
||||
scanner := backup.NewScanner(backup.ScannerConfig{
|
||||
FS: fs,
|
||||
ChunkSize: 1024 * 16, // 16KB chunks for testing
|
||||
Repositories: repos,
|
||||
FS: fs,
|
||||
ChunkSize: int64(1024 * 16), // 16KB chunks for testing
|
||||
Repositories: repos,
|
||||
MaxBlobSize: int64(1024 * 1024), // 1MB blobs
|
||||
CompressionLevel: 3,
|
||||
AgeRecipients: []string{"age1ezrjmfpwsc95svdg0y54mums3zevgzu0x0ecq2f7tp8a05gl0sjq9q9wjg"}, // Test public key
|
||||
})
|
||||
|
||||
// Scan the directory
|
||||
// Create a snapshot record for testing
|
||||
ctx := context.Background()
|
||||
result, err := scanner.Scan(ctx, "/source")
|
||||
snapshotID := "test-snapshot-001"
|
||||
err = repos.WithTx(ctx, func(ctx context.Context, tx *sql.Tx) error {
|
||||
snapshot := &database.Snapshot{
|
||||
ID: snapshotID,
|
||||
Hostname: "test-host",
|
||||
VaultikVersion: "test",
|
||||
StartedAt: time.Now(),
|
||||
CompletedAt: nil,
|
||||
FileCount: 0,
|
||||
ChunkCount: 0,
|
||||
BlobCount: 0,
|
||||
TotalSize: 0,
|
||||
BlobSize: 0,
|
||||
CompressionRatio: 1.0,
|
||||
}
|
||||
return repos.Snapshots.Create(ctx, tx, snapshot)
|
||||
})
|
||||
if err != nil {
|
||||
t.Fatalf("failed to create snapshot: %v", err)
|
||||
}
|
||||
|
||||
// Scan the directory
|
||||
var result *backup.ScanResult
|
||||
result, err = scanner.Scan(ctx, "/source", snapshotID)
|
||||
if err != nil {
|
||||
t.Fatalf("scan failed: %v", err)
|
||||
}
|
||||
|
||||
// Verify results
|
||||
if result.FilesScanned != 6 {
|
||||
t.Errorf("expected 6 files scanned, got %d", result.FilesScanned)
|
||||
// We now scan 6 files + 3 directories (source, subdir, subdir2) = 9 entries
|
||||
if result.FilesScanned != 9 {
|
||||
t.Errorf("expected 9 entries scanned, got %d", result.FilesScanned)
|
||||
}
|
||||
|
||||
if result.BytesScanned != 97 { // Total size of all test files: 13 + 20 + 20 + 28 + 0 + 16 = 97
|
||||
t.Errorf("expected 97 bytes scanned, got %d", result.BytesScanned)
|
||||
// Directories have their own sizes, so the total will be more than just file content
|
||||
if result.BytesScanned < 97 { // At minimum we have 97 bytes of file content
|
||||
t.Errorf("expected at least 97 bytes scanned, got %d", result.BytesScanned)
|
||||
}
|
||||
|
||||
// Verify files in database
|
||||
@@ -83,8 +116,9 @@ func TestScannerSimpleDirectory(t *testing.T) {
|
||||
t.Fatalf("failed to list files: %v", err)
|
||||
}
|
||||
|
||||
if len(files) != 6 {
|
||||
t.Errorf("expected 6 files in database, got %d", len(files))
|
||||
// We should have 6 files + 3 directories = 9 entries
|
||||
if len(files) != 9 {
|
||||
t.Errorf("expected 9 entries in database, got %d", len(files))
|
||||
}
|
||||
|
||||
// Verify specific file
|
||||
@@ -126,6 +160,9 @@ func TestScannerSimpleDirectory(t *testing.T) {
|
||||
}
|
||||
|
||||
func TestScannerWithSymlinks(t *testing.T) {
|
||||
// Initialize logger for tests
|
||||
log.Initialize(log.Config{})
|
||||
|
||||
// Create in-memory filesystem
|
||||
fs := afero.NewMemMapFs()
|
||||
|
||||
@@ -171,14 +208,40 @@ func TestScannerWithSymlinks(t *testing.T) {
|
||||
|
||||
// Create scanner
|
||||
scanner := backup.NewScanner(backup.ScannerConfig{
|
||||
FS: fs,
|
||||
ChunkSize: 1024 * 16,
|
||||
Repositories: repos,
|
||||
FS: fs,
|
||||
ChunkSize: 1024 * 16,
|
||||
Repositories: repos,
|
||||
MaxBlobSize: int64(1024 * 1024),
|
||||
CompressionLevel: 3,
|
||||
AgeRecipients: []string{},
|
||||
})
|
||||
|
||||
// Scan the directory
|
||||
// Create a snapshot record for testing
|
||||
ctx := context.Background()
|
||||
result, err := scanner.Scan(ctx, "/source")
|
||||
snapshotID := "test-snapshot-001"
|
||||
err = repos.WithTx(ctx, func(ctx context.Context, tx *sql.Tx) error {
|
||||
snapshot := &database.Snapshot{
|
||||
ID: snapshotID,
|
||||
Hostname: "test-host",
|
||||
VaultikVersion: "test",
|
||||
StartedAt: time.Now(),
|
||||
CompletedAt: nil,
|
||||
FileCount: 0,
|
||||
ChunkCount: 0,
|
||||
BlobCount: 0,
|
||||
TotalSize: 0,
|
||||
BlobSize: 0,
|
||||
CompressionRatio: 1.0,
|
||||
}
|
||||
return repos.Snapshots.Create(ctx, tx, snapshot)
|
||||
})
|
||||
if err != nil {
|
||||
t.Fatalf("failed to create snapshot: %v", err)
|
||||
}
|
||||
|
||||
// Scan the directory
|
||||
var result *backup.ScanResult
|
||||
result, err = scanner.Scan(ctx, "/source", snapshotID)
|
||||
if err != nil {
|
||||
t.Fatalf("scan failed: %v", err)
|
||||
}
|
||||
@@ -209,13 +272,19 @@ func TestScannerWithSymlinks(t *testing.T) {
|
||||
}
|
||||
|
||||
func TestScannerLargeFile(t *testing.T) {
|
||||
// Initialize logger for tests
|
||||
log.Initialize(log.Config{})
|
||||
|
||||
// Create in-memory filesystem
|
||||
fs := afero.NewMemMapFs()
|
||||
|
||||
// Create a large file that will require multiple chunks
|
||||
// Use random content to ensure good chunk boundaries
|
||||
largeContent := make([]byte, 1024*1024) // 1MB
|
||||
for i := range largeContent {
|
||||
largeContent[i] = byte(i % 256)
|
||||
// Fill with pseudo-random data to ensure chunk boundaries
|
||||
for i := 0; i < len(largeContent); i++ {
|
||||
// Simple pseudo-random generator for deterministic tests
|
||||
largeContent[i] = byte((i * 7919) ^ (i >> 3))
|
||||
}
|
||||
|
||||
if err := fs.MkdirAll("/source", 0755); err != nil {
|
||||
@@ -238,22 +307,54 @@ func TestScannerLargeFile(t *testing.T) {
|
||||
|
||||
repos := database.NewRepositories(db)
|
||||
|
||||
// Create scanner with 64KB chunks
|
||||
// Create scanner with 64KB average chunk size
|
||||
scanner := backup.NewScanner(backup.ScannerConfig{
|
||||
FS: fs,
|
||||
ChunkSize: 1024 * 64, // 64KB chunks
|
||||
Repositories: repos,
|
||||
FS: fs,
|
||||
ChunkSize: int64(1024 * 64), // 64KB average chunks
|
||||
Repositories: repos,
|
||||
MaxBlobSize: int64(1024 * 1024),
|
||||
CompressionLevel: 3,
|
||||
AgeRecipients: []string{},
|
||||
})
|
||||
|
||||
// Scan the directory
|
||||
// Create a snapshot record for testing
|
||||
ctx := context.Background()
|
||||
result, err := scanner.Scan(ctx, "/source")
|
||||
snapshotID := "test-snapshot-001"
|
||||
err = repos.WithTx(ctx, func(ctx context.Context, tx *sql.Tx) error {
|
||||
snapshot := &database.Snapshot{
|
||||
ID: snapshotID,
|
||||
Hostname: "test-host",
|
||||
VaultikVersion: "test",
|
||||
StartedAt: time.Now(),
|
||||
CompletedAt: nil,
|
||||
FileCount: 0,
|
||||
ChunkCount: 0,
|
||||
BlobCount: 0,
|
||||
TotalSize: 0,
|
||||
BlobSize: 0,
|
||||
CompressionRatio: 1.0,
|
||||
}
|
||||
return repos.Snapshots.Create(ctx, tx, snapshot)
|
||||
})
|
||||
if err != nil {
|
||||
t.Fatalf("failed to create snapshot: %v", err)
|
||||
}
|
||||
|
||||
// Scan the directory
|
||||
var result *backup.ScanResult
|
||||
result, err = scanner.Scan(ctx, "/source", snapshotID)
|
||||
if err != nil {
|
||||
t.Fatalf("scan failed: %v", err)
|
||||
}
|
||||
|
||||
if result.BytesScanned != 1024*1024 {
|
||||
t.Errorf("expected %d bytes scanned, got %d", 1024*1024, result.BytesScanned)
|
||||
// We scan 1 file + 1 directory = 2 entries
|
||||
if result.FilesScanned != 2 {
|
||||
t.Errorf("expected 2 entries scanned, got %d", result.FilesScanned)
|
||||
}
|
||||
|
||||
// The file size should be at least 1MB
|
||||
if result.BytesScanned < 1024*1024 {
|
||||
t.Errorf("expected at least %d bytes scanned, got %d", 1024*1024, result.BytesScanned)
|
||||
}
|
||||
|
||||
// Verify chunks
|
||||
@@ -262,11 +363,15 @@ func TestScannerLargeFile(t *testing.T) {
|
||||
t.Fatalf("failed to get chunks: %v", err)
|
||||
}
|
||||
|
||||
expectedChunks := 16 // 1MB / 64KB
|
||||
if len(chunks) != expectedChunks {
|
||||
t.Errorf("expected %d chunks, got %d", expectedChunks, len(chunks))
|
||||
// With content-defined chunking, the number of chunks depends on content
|
||||
// For a 1MB file, we should get at least 1 chunk
|
||||
if len(chunks) < 1 {
|
||||
t.Errorf("expected at least 1 chunk, got %d", len(chunks))
|
||||
}
|
||||
|
||||
// Log the actual number of chunks for debugging
|
||||
t.Logf("1MB file produced %d chunks with 64KB average chunk size", len(chunks))
|
||||
|
||||
// Verify chunk sequence
|
||||
for i, fc := range chunks {
|
||||
if fc.Idx != i {
|
||||
|
||||
542
internal/backup/snapshot.go
Normal file
542
internal/backup/snapshot.go
Normal file
@@ -0,0 +1,542 @@
|
||||
package backup
|
||||
|
||||
// Snapshot Metadata Export Process
|
||||
// ================================
|
||||
//
|
||||
// The snapshot metadata contains all information needed to restore a backup.
|
||||
// Instead of creating a custom format, we use a trimmed copy of the SQLite
|
||||
// database containing only data relevant to the current snapshot.
|
||||
//
|
||||
// Process Overview:
|
||||
// 1. After all files/chunks/blobs are backed up, create a snapshot record
|
||||
// 2. Close the main database to ensure consistency
|
||||
// 3. Copy the entire database to a temporary file
|
||||
// 4. Open the temporary database
|
||||
// 5. Delete all snapshots except the current one
|
||||
// 6. Delete all orphaned records:
|
||||
// - Files not referenced by any remaining snapshot
|
||||
// - Chunks not referenced by any remaining files
|
||||
// - Blobs not containing any remaining chunks
|
||||
// - All related mapping tables (file_chunks, chunk_files, blob_chunks)
|
||||
// 7. Close the temporary database
|
||||
// 8. Use sqlite3 to dump the cleaned database to SQL
|
||||
// 9. Delete the temporary database file
|
||||
// 10. Compress the SQL dump with zstd
|
||||
// 11. Encrypt the compressed dump with age (if encryption is enabled)
|
||||
// 12. Upload to S3 as: snapshots/{snapshot-id}.sql.zst[.age]
|
||||
// 13. Reopen the main database
|
||||
//
|
||||
// Advantages of this approach:
|
||||
// - No custom metadata format needed
|
||||
// - Reuses existing database schema and relationships
|
||||
// - SQL dumps are portable and compress well
|
||||
// - Restore process can simply execute the SQL
|
||||
// - Atomic and consistent snapshot of all metadata
|
||||
//
|
||||
// TODO: Future improvements:
|
||||
// - Add snapshot-file relationships to track which files belong to which snapshot
|
||||
// - Implement incremental snapshots that reference previous snapshots
|
||||
// - Add snapshot manifest with additional metadata (size, chunk count, etc.)
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"context"
|
||||
"database/sql"
|
||||
"encoding/json"
|
||||
"fmt"
|
||||
"io"
|
||||
"os"
|
||||
"os/exec"
|
||||
"path/filepath"
|
||||
"runtime"
|
||||
"time"
|
||||
|
||||
"git.eeqj.de/sneak/vaultik/internal/database"
|
||||
"git.eeqj.de/sneak/vaultik/internal/log"
|
||||
"github.com/klauspost/compress/zstd"
|
||||
)
|
||||
|
||||
// SnapshotManager handles snapshot creation and metadata export
|
||||
type SnapshotManager struct {
|
||||
repos *database.Repositories
|
||||
s3Client S3Client
|
||||
encryptor Encryptor
|
||||
}
|
||||
|
||||
// Encryptor interface for snapshot encryption
|
||||
type Encryptor interface {
|
||||
Encrypt(data []byte) ([]byte, error)
|
||||
}
|
||||
|
||||
// NewSnapshotManager creates a new snapshot manager
|
||||
func NewSnapshotManager(repos *database.Repositories, s3Client S3Client, encryptor Encryptor) *SnapshotManager {
|
||||
return &SnapshotManager{
|
||||
repos: repos,
|
||||
s3Client: s3Client,
|
||||
encryptor: encryptor,
|
||||
}
|
||||
}
|
||||
|
||||
// CreateSnapshot creates a new snapshot record in the database at the start of a backup
|
||||
func (sm *SnapshotManager) CreateSnapshot(ctx context.Context, hostname, version string) (string, error) {
|
||||
snapshotID := fmt.Sprintf("%s-%s", hostname, time.Now().Format("20060102-150405"))
|
||||
|
||||
snapshot := &database.Snapshot{
|
||||
ID: snapshotID,
|
||||
Hostname: hostname,
|
||||
VaultikVersion: version,
|
||||
StartedAt: time.Now(),
|
||||
CompletedAt: nil, // Not completed yet
|
||||
FileCount: 0,
|
||||
ChunkCount: 0,
|
||||
BlobCount: 0,
|
||||
TotalSize: 0,
|
||||
BlobSize: 0,
|
||||
CompressionRatio: 1.0,
|
||||
}
|
||||
|
||||
err := sm.repos.WithTx(ctx, func(ctx context.Context, tx *sql.Tx) error {
|
||||
return sm.repos.Snapshots.Create(ctx, tx, snapshot)
|
||||
})
|
||||
|
||||
if err != nil {
|
||||
return "", fmt.Errorf("creating snapshot: %w", err)
|
||||
}
|
||||
|
||||
log.Info("Created snapshot", "snapshot_id", snapshotID)
|
||||
return snapshotID, nil
|
||||
}
|
||||
|
||||
// UpdateSnapshotStats updates the statistics for a snapshot during backup
|
||||
func (sm *SnapshotManager) UpdateSnapshotStats(ctx context.Context, snapshotID string, stats BackupStats) error {
|
||||
err := sm.repos.WithTx(ctx, func(ctx context.Context, tx *sql.Tx) error {
|
||||
return sm.repos.Snapshots.UpdateCounts(ctx, tx, snapshotID,
|
||||
int64(stats.FilesScanned),
|
||||
int64(stats.ChunksCreated),
|
||||
int64(stats.BlobsCreated),
|
||||
stats.BytesScanned,
|
||||
stats.BytesUploaded,
|
||||
)
|
||||
})
|
||||
|
||||
if err != nil {
|
||||
return fmt.Errorf("updating snapshot stats: %w", err)
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// CompleteSnapshot marks a snapshot as completed and exports its metadata
|
||||
func (sm *SnapshotManager) CompleteSnapshot(ctx context.Context, snapshotID string) error {
|
||||
// Mark the snapshot as completed
|
||||
err := sm.repos.WithTx(ctx, func(ctx context.Context, tx *sql.Tx) error {
|
||||
return sm.repos.Snapshots.MarkComplete(ctx, tx, snapshotID)
|
||||
})
|
||||
|
||||
if err != nil {
|
||||
return fmt.Errorf("marking snapshot complete: %w", err)
|
||||
}
|
||||
|
||||
log.Info("Completed snapshot", "snapshot_id", snapshotID)
|
||||
return nil
|
||||
}
|
||||
|
||||
// ExportSnapshotMetadata exports snapshot metadata to S3
|
||||
//
|
||||
// This method executes the complete snapshot metadata export process:
|
||||
// 1. Creates a temporary directory for working files
|
||||
// 2. Copies the main database to preserve its state
|
||||
// 3. Cleans the copy to contain only current snapshot data
|
||||
// 4. Dumps the cleaned database to SQL
|
||||
// 5. Compresses the SQL dump with zstd
|
||||
// 6. Encrypts the compressed data (if encryption is enabled)
|
||||
// 7. Uploads to S3 at: snapshots/{snapshot-id}.sql.zst[.age]
|
||||
//
|
||||
// The caller is responsible for:
|
||||
// - Ensuring the main database is closed before calling this method
|
||||
// - Reopening the main database after this method returns
|
||||
//
|
||||
// This ensures database consistency during the copy operation.
|
||||
func (sm *SnapshotManager) ExportSnapshotMetadata(ctx context.Context, dbPath string, snapshotID string) error {
|
||||
log.Info("Exporting snapshot metadata", "snapshot_id", snapshotID)
|
||||
|
||||
// Create temp directory for all temporary files
|
||||
tempDir, err := os.MkdirTemp("", "vaultik-snapshot-*")
|
||||
if err != nil {
|
||||
return fmt.Errorf("creating temp dir: %w", err)
|
||||
}
|
||||
defer func() {
|
||||
if err := os.RemoveAll(tempDir); err != nil {
|
||||
log.Debug("Failed to remove temp dir", "path", tempDir, "error", err)
|
||||
}
|
||||
}()
|
||||
|
||||
// Step 1: Copy database to temp file
|
||||
// The main database should be closed at this point
|
||||
tempDBPath := filepath.Join(tempDir, "snapshot.db")
|
||||
if err := copyFile(dbPath, tempDBPath); err != nil {
|
||||
return fmt.Errorf("copying database: %w", err)
|
||||
}
|
||||
|
||||
// Step 2: Clean the temp database to only contain current snapshot data
|
||||
if err := sm.cleanSnapshotDB(ctx, tempDBPath, snapshotID); err != nil {
|
||||
return fmt.Errorf("cleaning snapshot database: %w", err)
|
||||
}
|
||||
|
||||
// Step 3: Dump the cleaned database to SQL
|
||||
dumpPath := filepath.Join(tempDir, "snapshot.sql")
|
||||
if err := sm.dumpDatabase(tempDBPath, dumpPath); err != nil {
|
||||
return fmt.Errorf("dumping database: %w", err)
|
||||
}
|
||||
|
||||
// Step 4: Compress the SQL dump
|
||||
compressedPath := filepath.Join(tempDir, "snapshot.sql.zst")
|
||||
if err := sm.compressDump(dumpPath, compressedPath); err != nil {
|
||||
return fmt.Errorf("compressing dump: %w", err)
|
||||
}
|
||||
|
||||
// Step 5: Read compressed data for encryption/upload
|
||||
compressedData, err := os.ReadFile(compressedPath)
|
||||
if err != nil {
|
||||
return fmt.Errorf("reading compressed dump: %w", err)
|
||||
}
|
||||
|
||||
// Step 6: Encrypt if encryptor is available
|
||||
finalData := compressedData
|
||||
if sm.encryptor != nil {
|
||||
encrypted, err := sm.encryptor.Encrypt(compressedData)
|
||||
if err != nil {
|
||||
return fmt.Errorf("encrypting snapshot: %w", err)
|
||||
}
|
||||
finalData = encrypted
|
||||
}
|
||||
|
||||
// Step 7: Generate blob manifest (before closing temp DB)
|
||||
blobManifest, err := sm.generateBlobManifest(ctx, tempDBPath, snapshotID)
|
||||
if err != nil {
|
||||
return fmt.Errorf("generating blob manifest: %w", err)
|
||||
}
|
||||
|
||||
// Step 8: Upload to S3 in snapshot subdirectory
|
||||
// Upload database backup (encrypted)
|
||||
dbKey := fmt.Sprintf("metadata/%s/db.zst", snapshotID)
|
||||
if sm.encryptor != nil {
|
||||
dbKey += ".age"
|
||||
}
|
||||
|
||||
if err := sm.s3Client.PutObject(ctx, dbKey, bytes.NewReader(finalData)); err != nil {
|
||||
return fmt.Errorf("uploading snapshot database: %w", err)
|
||||
}
|
||||
|
||||
// Upload blob manifest (unencrypted, compressed)
|
||||
manifestKey := fmt.Sprintf("metadata/%s/manifest.json.zst", snapshotID)
|
||||
if err := sm.s3Client.PutObject(ctx, manifestKey, bytes.NewReader(blobManifest)); err != nil {
|
||||
return fmt.Errorf("uploading blob manifest: %w", err)
|
||||
}
|
||||
|
||||
log.Info("Uploaded snapshot metadata",
|
||||
"snapshot_id", snapshotID,
|
||||
"db_size", len(finalData),
|
||||
"manifest_size", len(blobManifest))
|
||||
return nil
|
||||
}
|
||||
|
||||
// cleanSnapshotDB removes all data except for the specified snapshot
|
||||
//
|
||||
// Current implementation:
|
||||
// Since we don't yet have snapshot-file relationships, this currently only
|
||||
// removes other snapshots. In a complete implementation, it would:
|
||||
//
|
||||
// 1. Delete all snapshots except the current one
|
||||
// 2. Delete files not belonging to the current snapshot
|
||||
// 3. Delete file_chunks for deleted files (CASCADE)
|
||||
// 4. Delete chunk_files for deleted files
|
||||
// 5. Delete chunks with no remaining file references
|
||||
// 6. Delete blob_chunks for deleted chunks
|
||||
// 7. Delete blobs with no remaining chunks
|
||||
//
|
||||
// The order is important to maintain referential integrity.
|
||||
//
|
||||
// Future implementation when we have snapshot_files table:
|
||||
//
|
||||
// DELETE FROM snapshots WHERE id != ?;
|
||||
// DELETE FROM files WHERE path NOT IN (
|
||||
// SELECT file_path FROM snapshot_files WHERE snapshot_id = ?
|
||||
// );
|
||||
// DELETE FROM chunks WHERE chunk_hash NOT IN (
|
||||
// SELECT DISTINCT chunk_hash FROM file_chunks
|
||||
// );
|
||||
// DELETE FROM blobs WHERE blob_hash NOT IN (
|
||||
// SELECT DISTINCT blob_hash FROM blob_chunks
|
||||
// );
|
||||
func (sm *SnapshotManager) cleanSnapshotDB(ctx context.Context, dbPath string, snapshotID string) error {
|
||||
// Open the temp database
|
||||
db, err := database.New(ctx, dbPath)
|
||||
if err != nil {
|
||||
return fmt.Errorf("opening temp database: %w", err)
|
||||
}
|
||||
defer func() {
|
||||
if err := db.Close(); err != nil {
|
||||
log.Debug("Failed to close temp database", "error", err)
|
||||
}
|
||||
}()
|
||||
|
||||
// Start a transaction
|
||||
tx, err := db.BeginTx(ctx, nil)
|
||||
if err != nil {
|
||||
return fmt.Errorf("beginning transaction: %w", err)
|
||||
}
|
||||
defer func() {
|
||||
if rbErr := tx.Rollback(); rbErr != nil && rbErr != sql.ErrTxDone {
|
||||
log.Debug("Failed to rollback transaction", "error", rbErr)
|
||||
}
|
||||
}()
|
||||
|
||||
// Step 1: Delete all other snapshots
|
||||
_, err = tx.ExecContext(ctx, "DELETE FROM snapshots WHERE id != ?", snapshotID)
|
||||
if err != nil {
|
||||
return fmt.Errorf("deleting other snapshots: %w", err)
|
||||
}
|
||||
|
||||
// Step 2: Delete files not in this snapshot
|
||||
_, err = tx.ExecContext(ctx, `
|
||||
DELETE FROM files
|
||||
WHERE path NOT IN (
|
||||
SELECT file_path FROM snapshot_files WHERE snapshot_id = ?
|
||||
)`, snapshotID)
|
||||
if err != nil {
|
||||
return fmt.Errorf("deleting orphaned files: %w", err)
|
||||
}
|
||||
|
||||
// Step 3: file_chunks will be deleted via CASCADE from files
|
||||
|
||||
// Step 4: Delete chunk_files for deleted files
|
||||
_, err = tx.ExecContext(ctx, `
|
||||
DELETE FROM chunk_files
|
||||
WHERE file_path NOT IN (
|
||||
SELECT path FROM files
|
||||
)`)
|
||||
if err != nil {
|
||||
return fmt.Errorf("deleting orphaned chunk_files: %w", err)
|
||||
}
|
||||
|
||||
// Step 5: Delete chunks with no remaining file references
|
||||
_, err = tx.ExecContext(ctx, `
|
||||
DELETE FROM chunks
|
||||
WHERE chunk_hash NOT IN (
|
||||
SELECT DISTINCT chunk_hash FROM file_chunks
|
||||
)`)
|
||||
if err != nil {
|
||||
return fmt.Errorf("deleting orphaned chunks: %w", err)
|
||||
}
|
||||
|
||||
// Step 6: Delete blob_chunks for deleted chunks
|
||||
_, err = tx.ExecContext(ctx, `
|
||||
DELETE FROM blob_chunks
|
||||
WHERE chunk_hash NOT IN (
|
||||
SELECT chunk_hash FROM chunks
|
||||
)`)
|
||||
if err != nil {
|
||||
return fmt.Errorf("deleting orphaned blob_chunks: %w", err)
|
||||
}
|
||||
|
||||
// Step 7: Delete blobs not in this snapshot
|
||||
_, err = tx.ExecContext(ctx, `
|
||||
DELETE FROM blobs
|
||||
WHERE blob_hash NOT IN (
|
||||
SELECT blob_hash FROM snapshot_blobs WHERE snapshot_id = ?
|
||||
)`, snapshotID)
|
||||
if err != nil {
|
||||
return fmt.Errorf("deleting orphaned blobs: %w", err)
|
||||
}
|
||||
|
||||
// Step 8: Delete orphaned snapshot_files and snapshot_blobs
|
||||
_, err = tx.ExecContext(ctx, "DELETE FROM snapshot_files WHERE snapshot_id != ?", snapshotID)
|
||||
if err != nil {
|
||||
return fmt.Errorf("deleting orphaned snapshot_files: %w", err)
|
||||
}
|
||||
|
||||
_, err = tx.ExecContext(ctx, "DELETE FROM snapshot_blobs WHERE snapshot_id != ?", snapshotID)
|
||||
if err != nil {
|
||||
return fmt.Errorf("deleting orphaned snapshot_blobs: %w", err)
|
||||
}
|
||||
|
||||
// Commit transaction
|
||||
if err := tx.Commit(); err != nil {
|
||||
return fmt.Errorf("committing transaction: %w", err)
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// dumpDatabase creates a SQL dump of the database
|
||||
func (sm *SnapshotManager) dumpDatabase(dbPath, dumpPath string) error {
|
||||
cmd := exec.Command("sqlite3", dbPath, ".dump")
|
||||
|
||||
output, err := cmd.Output()
|
||||
if err != nil {
|
||||
return fmt.Errorf("running sqlite3 dump: %w", err)
|
||||
}
|
||||
|
||||
if err := os.WriteFile(dumpPath, output, 0644); err != nil {
|
||||
return fmt.Errorf("writing dump file: %w", err)
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// compressDump compresses the SQL dump using zstd
|
||||
func (sm *SnapshotManager) compressDump(inputPath, outputPath string) error {
|
||||
input, err := os.Open(inputPath)
|
||||
if err != nil {
|
||||
return fmt.Errorf("opening input file: %w", err)
|
||||
}
|
||||
defer func() {
|
||||
if err := input.Close(); err != nil {
|
||||
log.Debug("Failed to close input file", "error", err)
|
||||
}
|
||||
}()
|
||||
|
||||
output, err := os.Create(outputPath)
|
||||
if err != nil {
|
||||
return fmt.Errorf("creating output file: %w", err)
|
||||
}
|
||||
defer func() {
|
||||
if err := output.Close(); err != nil {
|
||||
log.Debug("Failed to close output file", "error", err)
|
||||
}
|
||||
}()
|
||||
|
||||
// Create zstd encoder with good compression and multithreading
|
||||
zstdWriter, err := zstd.NewWriter(output,
|
||||
zstd.WithEncoderLevel(zstd.SpeedBetterCompression),
|
||||
zstd.WithEncoderConcurrency(runtime.NumCPU()),
|
||||
zstd.WithWindowSize(4<<20), // 4MB window for metadata files
|
||||
)
|
||||
if err != nil {
|
||||
return fmt.Errorf("creating zstd writer: %w", err)
|
||||
}
|
||||
defer func() {
|
||||
if err := zstdWriter.Close(); err != nil {
|
||||
log.Debug("Failed to close zstd writer", "error", err)
|
||||
}
|
||||
}()
|
||||
|
||||
if _, err := io.Copy(zstdWriter, input); err != nil {
|
||||
return fmt.Errorf("compressing data: %w", err)
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// copyFile copies a file from src to dst
|
||||
func copyFile(src, dst string) error {
|
||||
sourceFile, err := os.Open(src)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
defer func() {
|
||||
if err := sourceFile.Close(); err != nil {
|
||||
log.Debug("Failed to close source file", "error", err)
|
||||
}
|
||||
}()
|
||||
|
||||
destFile, err := os.Create(dst)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
defer func() {
|
||||
if err := destFile.Close(); err != nil {
|
||||
log.Debug("Failed to close destination file", "error", err)
|
||||
}
|
||||
}()
|
||||
|
||||
if _, err := io.Copy(destFile, sourceFile); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// generateBlobManifest creates a compressed JSON list of all blobs in the snapshot
|
||||
func (sm *SnapshotManager) generateBlobManifest(ctx context.Context, dbPath string, snapshotID string) ([]byte, error) {
|
||||
// Open the cleaned database using the database package
|
||||
db, err := database.New(ctx, dbPath)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("opening database: %w", err)
|
||||
}
|
||||
defer func() { _ = db.Close() }()
|
||||
|
||||
// Create repositories to access the data
|
||||
repos := database.NewRepositories(db)
|
||||
|
||||
// Get all blobs for this snapshot
|
||||
blobs, err := repos.Snapshots.GetBlobHashes(ctx, snapshotID)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("getting snapshot blobs: %w", err)
|
||||
}
|
||||
|
||||
// Create manifest structure
|
||||
manifest := struct {
|
||||
SnapshotID string `json:"snapshot_id"`
|
||||
Timestamp string `json:"timestamp"`
|
||||
BlobCount int `json:"blob_count"`
|
||||
Blobs []string `json:"blobs"`
|
||||
}{
|
||||
SnapshotID: snapshotID,
|
||||
Timestamp: time.Now().UTC().Format(time.RFC3339),
|
||||
BlobCount: len(blobs),
|
||||
Blobs: blobs,
|
||||
}
|
||||
|
||||
// Marshal to JSON
|
||||
jsonData, err := json.MarshalIndent(manifest, "", " ")
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("marshaling manifest: %w", err)
|
||||
}
|
||||
|
||||
// Compress with zstd
|
||||
compressed, err := compressData(jsonData)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("compressing manifest: %w", err)
|
||||
}
|
||||
|
||||
log.Info("Generated blob manifest",
|
||||
"snapshot_id", snapshotID,
|
||||
"blob_count", len(blobs),
|
||||
"json_size", len(jsonData),
|
||||
"compressed_size", len(compressed))
|
||||
|
||||
return compressed, nil
|
||||
}
|
||||
|
||||
// compressData compresses data using zstd
|
||||
func compressData(data []byte) ([]byte, error) {
|
||||
var buf bytes.Buffer
|
||||
w, err := zstd.NewWriter(&buf,
|
||||
zstd.WithEncoderLevel(zstd.SpeedBetterCompression),
|
||||
)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
if _, err := w.Write(data); err != nil {
|
||||
_ = w.Close()
|
||||
return nil, err
|
||||
}
|
||||
|
||||
if err := w.Close(); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
return buf.Bytes(), nil
|
||||
}
|
||||
|
||||
// BackupStats contains statistics from a backup operation
|
||||
type BackupStats struct {
|
||||
FilesScanned int
|
||||
BytesScanned int64
|
||||
ChunksCreated int
|
||||
BlobsCreated int
|
||||
BytesUploaded int64
|
||||
}
|
||||
147
internal/backup/snapshot_test.go
Normal file
147
internal/backup/snapshot_test.go
Normal file
@@ -0,0 +1,147 @@
|
||||
package backup
|
||||
|
||||
import (
|
||||
"context"
|
||||
"database/sql"
|
||||
"path/filepath"
|
||||
"testing"
|
||||
|
||||
"git.eeqj.de/sneak/vaultik/internal/database"
|
||||
"git.eeqj.de/sneak/vaultik/internal/log"
|
||||
)
|
||||
|
||||
func TestCleanSnapshotDBEmptySnapshot(t *testing.T) {
|
||||
// Initialize logger
|
||||
log.Initialize(log.Config{})
|
||||
|
||||
ctx := context.Background()
|
||||
|
||||
// Create a test database
|
||||
tempDir := t.TempDir()
|
||||
dbPath := filepath.Join(tempDir, "test.db")
|
||||
db, err := database.New(ctx, dbPath)
|
||||
if err != nil {
|
||||
t.Fatalf("failed to create database: %v", err)
|
||||
}
|
||||
|
||||
repos := database.NewRepositories(db)
|
||||
|
||||
// Create an empty snapshot
|
||||
snapshot := &database.Snapshot{
|
||||
ID: "empty-snapshot",
|
||||
Hostname: "test-host",
|
||||
}
|
||||
|
||||
err = repos.WithTx(ctx, func(ctx context.Context, tx *sql.Tx) error {
|
||||
return repos.Snapshots.Create(ctx, tx, snapshot)
|
||||
})
|
||||
if err != nil {
|
||||
t.Fatalf("failed to create snapshot: %v", err)
|
||||
}
|
||||
|
||||
// Create some files and chunks not associated with any snapshot
|
||||
file := &database.File{Path: "/orphan/file.txt", Size: 1000}
|
||||
chunk := &database.Chunk{ChunkHash: "orphan-chunk", SHA256: "orphan-chunk", Size: 500}
|
||||
|
||||
err = repos.WithTx(ctx, func(ctx context.Context, tx *sql.Tx) error {
|
||||
if err := repos.Files.Create(ctx, tx, file); err != nil {
|
||||
return err
|
||||
}
|
||||
return repos.Chunks.Create(ctx, tx, chunk)
|
||||
})
|
||||
if err != nil {
|
||||
t.Fatalf("failed to create orphan data: %v", err)
|
||||
}
|
||||
|
||||
// Close the database
|
||||
if err := db.Close(); err != nil {
|
||||
t.Fatalf("failed to close database: %v", err)
|
||||
}
|
||||
|
||||
// Copy database
|
||||
tempDBPath := filepath.Join(tempDir, "temp.db")
|
||||
if err := copyFile(dbPath, tempDBPath); err != nil {
|
||||
t.Fatalf("failed to copy database: %v", err)
|
||||
}
|
||||
|
||||
// Clean the database
|
||||
sm := &SnapshotManager{}
|
||||
if err := sm.cleanSnapshotDB(ctx, tempDBPath, snapshot.ID); err != nil {
|
||||
t.Fatalf("failed to clean snapshot database: %v", err)
|
||||
}
|
||||
|
||||
// Verify the cleaned database
|
||||
cleanedDB, err := database.New(ctx, tempDBPath)
|
||||
if err != nil {
|
||||
t.Fatalf("failed to open cleaned database: %v", err)
|
||||
}
|
||||
defer func() {
|
||||
if err := cleanedDB.Close(); err != nil {
|
||||
t.Errorf("failed to close database: %v", err)
|
||||
}
|
||||
}()
|
||||
|
||||
cleanedRepos := database.NewRepositories(cleanedDB)
|
||||
|
||||
// Verify snapshot exists
|
||||
verifySnapshot, err := cleanedRepos.Snapshots.GetByID(ctx, snapshot.ID)
|
||||
if err != nil {
|
||||
t.Fatalf("failed to get snapshot: %v", err)
|
||||
}
|
||||
if verifySnapshot == nil {
|
||||
t.Error("snapshot should exist")
|
||||
}
|
||||
|
||||
// Verify orphan file is gone
|
||||
f, err := cleanedRepos.Files.GetByPath(ctx, file.Path)
|
||||
if err != nil {
|
||||
t.Fatalf("failed to check file: %v", err)
|
||||
}
|
||||
if f != nil {
|
||||
t.Error("orphan file should not exist")
|
||||
}
|
||||
|
||||
// Verify orphan chunk is gone
|
||||
c, err := cleanedRepos.Chunks.GetByHash(ctx, chunk.ChunkHash)
|
||||
if err != nil {
|
||||
t.Fatalf("failed to check chunk: %v", err)
|
||||
}
|
||||
if c != nil {
|
||||
t.Error("orphan chunk should not exist")
|
||||
}
|
||||
}
|
||||
|
||||
func TestCleanSnapshotDBNonExistentSnapshot(t *testing.T) {
|
||||
// Initialize logger
|
||||
log.Initialize(log.Config{})
|
||||
|
||||
ctx := context.Background()
|
||||
|
||||
// Create a test database
|
||||
tempDir := t.TempDir()
|
||||
dbPath := filepath.Join(tempDir, "test.db")
|
||||
db, err := database.New(ctx, dbPath)
|
||||
if err != nil {
|
||||
t.Fatalf("failed to create database: %v", err)
|
||||
}
|
||||
|
||||
// Close immediately
|
||||
if err := db.Close(); err != nil {
|
||||
t.Fatalf("failed to close database: %v", err)
|
||||
}
|
||||
|
||||
// Copy database
|
||||
tempDBPath := filepath.Join(tempDir, "temp.db")
|
||||
if err := copyFile(dbPath, tempDBPath); err != nil {
|
||||
t.Fatalf("failed to copy database: %v", err)
|
||||
}
|
||||
|
||||
// Try to clean with non-existent snapshot
|
||||
sm := &SnapshotManager{}
|
||||
err = sm.cleanSnapshotDB(ctx, tempDBPath, "non-existent-snapshot")
|
||||
|
||||
// Should not error - it will just delete everything
|
||||
if err != nil {
|
||||
t.Fatalf("unexpected error: %v", err)
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user