fix: enable auto vacuum to ensure DB does not grow infinitely

migrations/202406071726_vacuum.go

@@ -0,0 +1,27 @@
+package migrations
+
+import (
+	_ "embed"
+
+	"github.com/go-gormigrate/gormigrate/v2"
+	"gorm.io/gorm"
+)
+
+// VACUUM to finish the update the vacuum mode to auto_vacuum
+// See https://sqlite.org/pragma.html
+// "The database connection can be changed between full and incremental autovacuum mode at any time.
+// However, changing from "none" to "full" or "incremental" can only occur when the database is new
+// (no tables have yet been created) or by running the VACUUM command."
+var _202406071726_vacuum = &gormigrate.Migration{
+	ID: "202406071726_vacuum",
+	Migrate: func(tx *gorm.DB) error {
+		if err := tx.Exec("VACUUM").Error; err != nil {
+			return err
+		}
+
+		return nil
+	},
+	Rollback: func(tx *gorm.DB) error {
+		return nil
+	},
+}

migrations/migrate.go

@@ -15,6 +15,7 @@ func Migrate(db *gorm.DB, appConfig *config.AppConfig, logger *logrus.Logger) er
 		_202404021909_nullable_expires_at,
 		_202405302121_store_decrypted_request,
 		_202406061259_delete_content,
+		_202406071726_vacuum,
 	})
 
 	return m.Migrate()

service.go

@@ -125,8 +125,14 @@ func NewService(ctx context.Context) (*Service, error) {
 	if err != nil {
 		return nil, err
 	}
-	// Enable foreign keys for sqlite
-	gormDB.Exec("PRAGMA foreign_keys=ON;")
+	err = gormDB.Exec("PRAGMA foreign_keys=ON;").Error
+	if err != nil {
+		return nil, err
+	}
+	err = gormDB.Exec("PRAGMA auto_vacuum=FULL;").Error
+	if err != nil {
+		return nil, err
+	}
 	sqlDb, err = gormDB.DB()
 	if err != nil {
 		return nil, err