38 lines
1.3 KiB
TypeScript
38 lines
1.3 KiB
TypeScript
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import { waitForMigrations } from "../../state-migrations";
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import { CURRENT_VERSION, currentVersion } from "../../state-migrations/migrate";
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import { MigrationHelper } from "../../state-migrations/migration-helper";
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import { LogService } from "../abstractions/log.service";
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import { AbstractStorageService } from "../abstractions/storage.service";
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import { MigrationBuilderService } from "./migration-builder.service";
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export class MigrationRunner {
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constructor(
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protected diskStorage: AbstractStorageService,
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protected logService: LogService,
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protected migrationBuilderService: MigrationBuilderService,
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) {}
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async run(): Promise<void> {
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const migrationHelper = new MigrationHelper(
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await currentVersion(this.diskStorage, this.logService),
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this.diskStorage,
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this.logService,
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);
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if (migrationHelper.currentVersion < 0) {
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// Cannot determine state, assuming empty so we don't repeatedly apply a migration.
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await this.diskStorage.save("stateVersion", CURRENT_VERSION);
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return;
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}
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const migrationBuilder = this.migrationBuilderService.build();
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await migrationBuilder.migrate(migrationHelper);
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}
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async waitForCompletion(): Promise<void> {
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await waitForMigrations(this.diskStorage, this.logService);
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}
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}
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