import {createOrmConfig} from "@subsquid/typeorm-config" import * as dotenv from 'dotenv' import { Command } from '@oclif/core' import {ConnectionOptions, createConnection} from "typeorm" export default class RevertDb extends Command { static description = 'Revert the last performed migration' async run(): Promise<void> { dotenv.config() let cfg: ConnectionOptions = { ...createOrmConfig(), subscribers: [], synchronize: false, migrationsRun: false, dropSchema: false, logging: ["query", "error", "schema"] } let connection = await createConnection(cfg) try { await connection.undoLastMigration({transaction: 'all'}) } finally { await connection.close().catch(err => null) } } }