first commit

internal/database/migrate.go

@@ -0,0 +1,44 @@
+package database
+
+import (
+	"errors"
+	"fmt"
+
+	"github.com/golang-migrate/migrate/v4"
+	_ "github.com/golang-migrate/migrate/v4/database/postgres"
+	_ "github.com/golang-migrate/migrate/v4/source/file"
+)
+
+func RunMigrations(databaseURL, migrationsPath string) error {
+	m, err := migrate.New(
+		fmt.Sprintf("file://%s", migrationsPath),
+		databaseURL,
+	)
+	if err != nil {
+		return fmt.Errorf("create migrator: %w", err)
+	}
+	defer m.Close()
+
+	if err := m.Up(); err != nil && !errors.Is(err, migrate.ErrNoChange) {
+		return fmt.Errorf("migrate up: %w", err)
+	}
+
+	return nil
+}
+
+func RollbackMigrations(databaseURL, migrationsPath string) error {
+	m, err := migrate.New(
+		fmt.Sprintf("file://%s", migrationsPath),
+		databaseURL,
+	)
+	if err != nil {
+		return fmt.Errorf("create migrator: %w", err)
+	}
+	defer m.Close()
+
+	if err := m.Down(); err != nil && !errors.Is(err, migrate.ErrNoChange) {
+		return fmt.Errorf("migrate down: %w", err)
+	}
+
+	return nil
+}