connect.go

 1package db
 2
 3import (
 4	"context"
 5	"database/sql"
 6	"fmt"
 7	"log/slog"
 8	"path/filepath"
 9
10	"github.com/ncruces/go-sqlite3"
11	"github.com/ncruces/go-sqlite3/driver"
12	_ "github.com/ncruces/go-sqlite3/embed"
13
14	"github.com/pressly/goose/v3"
15)
16
17func Connect(ctx context.Context, dataDir string) (*sql.DB, error) {
18	if dataDir == "" {
19		return nil, fmt.Errorf("data.dir is not set")
20	}
21	dbPath := filepath.Join(dataDir, "crush.db")
22
23	// Set pragmas for better performance
24	pragmas := []string{
25		"PRAGMA foreign_keys = ON;",
26		"PRAGMA journal_mode = WAL;",
27		"PRAGMA page_size = 4096;",
28		"PRAGMA cache_size = -8000;",
29		"PRAGMA synchronous = NORMAL;",
30		"PRAGMA secure_delete = ON;",
31	}
32
33	db, err := driver.Open(dbPath, func(c *sqlite3.Conn) error {
34		for _, pragma := range pragmas {
35			if err := c.Exec(pragma); err != nil {
36				return fmt.Errorf("failed to set pragma `%s`: %w", pragma, err)
37			}
38		}
39		return nil
40	})
41	if err != nil {
42		return nil, fmt.Errorf("failed to open database: %w", err)
43	}
44
45	// Verify connection
46	if err = db.PingContext(ctx); err != nil {
47		db.Close()
48		return nil, fmt.Errorf("failed to connect to database: %w", err)
49	}
50
51	goose.SetBaseFS(FS)
52
53	if err := goose.SetDialect("sqlite3"); err != nil {
54		slog.Error("Failed to set dialect", "error", err)
55		return nil, fmt.Errorf("failed to set dialect: %w", err)
56	}
57
58	if err := goose.Up(db, "migrations"); err != nil {
59		slog.Error("Failed to apply migrations", "error", err)
60		return nil, fmt.Errorf("failed to apply migrations: %w", err)
61	}
62
63	return db, nil
64}