sneak
8529ae9735
- Add pure Go SQLite driver (modernc.org/sqlite) to avoid CGO dependency - Implement database connection management with WAL mode - Add write mutex for serializing concurrent writes - Create schema for all tables matching DESIGN.md specifications - Implement repository pattern for all database entities: - Files, FileChunks, Chunks, Blobs, BlobChunks, ChunkFiles, Snapshots - Add transaction support with proper rollback handling - Add fatal error handling for database integrity issues - Add snapshot fields for tracking file sizes and compression ratios - Make index path configurable via VAULTIK_INDEX_PATH environment variable - Add comprehensive test coverage for all repositories - Add format check to Makefile to ensure code formatting
89 lines
1.9 KiB
Go
89 lines
1.9 KiB
Go
package database
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import (
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"context"
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"database/sql"
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"fmt"
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)
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type BlobChunkRepository struct {
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db *DB
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}
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func NewBlobChunkRepository(db *DB) *BlobChunkRepository {
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return &BlobChunkRepository{db: db}
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}
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func (r *BlobChunkRepository) Create(ctx context.Context, tx *sql.Tx, bc *BlobChunk) error {
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query := `
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INSERT INTO blob_chunks (blob_hash, chunk_hash, offset, length)
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VALUES (?, ?, ?, ?)
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`
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var err error
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if tx != nil {
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_, err = tx.ExecContext(ctx, query, bc.BlobHash, bc.ChunkHash, bc.Offset, bc.Length)
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} else {
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_, err = r.db.ExecWithLock(ctx, query, bc.BlobHash, bc.ChunkHash, bc.Offset, bc.Length)
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}
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if err != nil {
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return fmt.Errorf("inserting blob_chunk: %w", err)
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}
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return nil
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}
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func (r *BlobChunkRepository) GetByBlobHash(ctx context.Context, blobHash string) ([]*BlobChunk, error) {
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query := `
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SELECT blob_hash, chunk_hash, offset, length
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FROM blob_chunks
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WHERE blob_hash = ?
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ORDER BY offset
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`
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rows, err := r.db.conn.QueryContext(ctx, query, blobHash)
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if err != nil {
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return nil, fmt.Errorf("querying blob chunks: %w", err)
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}
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defer CloseRows(rows)
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var blobChunks []*BlobChunk
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for rows.Next() {
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var bc BlobChunk
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err := rows.Scan(&bc.BlobHash, &bc.ChunkHash, &bc.Offset, &bc.Length)
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if err != nil {
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return nil, fmt.Errorf("scanning blob chunk: %w", err)
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}
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blobChunks = append(blobChunks, &bc)
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}
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return blobChunks, rows.Err()
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}
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func (r *BlobChunkRepository) GetByChunkHash(ctx context.Context, chunkHash string) (*BlobChunk, error) {
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query := `
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SELECT blob_hash, chunk_hash, offset, length
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FROM blob_chunks
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WHERE chunk_hash = ?
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LIMIT 1
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`
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var bc BlobChunk
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err := r.db.conn.QueryRowContext(ctx, query, chunkHash).Scan(
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&bc.BlobHash,
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&bc.ChunkHash,
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&bc.Offset,
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&bc.Length,
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)
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if err == sql.ErrNoRows {
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return nil, nil
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}
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if err != nil {
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return nil, fmt.Errorf("querying blob chunk: %w", err)
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}
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return &bc, nil
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}
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