29 lines
945 B
Go
29 lines
945 B
Go
package db
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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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// sqlite3 driver.
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_ "github.com/mattn/go-sqlite3"
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)
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// Open connects to a sqlite3 database with foreign keys enforced
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func Open(dbFile string) (*sql.DB, error) {
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// busy_timeout avoids immediate SQLITE_BUSY errors under concurrent access.
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// foreign_keys ensures FK constraints are enforced for this connection.
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db, err := sql.Open("sqlite3", fmt.Sprintf("file:%s?_foreign_keys=on&_busy_timeout=5000", dbFile))
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if err != nil {
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return nil, fmt.Errorf("failed to open db: %w", err)
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}
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// WAL improves concurrency between readers and writers.
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if _, err := db.ExecContext(context.Background(), "PRAGMA journal_mode=WAL;"); err != nil {
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return nil, fmt.Errorf("failed to enable WAL mode: %w", err)
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}
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if _, err := db.ExecContext(context.Background(), "PRAGMA busy_timeout=5000;"); err != nil {
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return nil, fmt.Errorf("failed to set busy timeout: %w", err)
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}
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return db, nil
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}
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