Method createMigration

packages/migrate/src/Migrate.ts:73–119

(
    params: Omit<EngineArgs.CreateMigrationInput, 'migrationsList' | 'filters'>,
  )

  }

  public async createMigration(
    params: Omit<EngineArgs.CreateMigrationInput, 'migrationsList' | 'filters'>,
  ): Promise<{ generatedMigrationName: string | undefined }> {
    if (!this.migrationsDirectoryPath) throw new Error('this.migrationsDirectoryPath is undefined')

    const migrationsList = await listMigrations(this.migrationsDirectoryPath, this.shadowDbInitScript)
    const { connectorType, generatedMigrationName, extension, migrationScript } = await this.engine.createMigration({
      ...params,
      migrationsList,
      filters: this.schemaFilter,
    })
    const { baseDir, lockfile } = migrationsList

    if (migrationScript === null) {
      return {
        generatedMigrationName: undefined,
      }
    }

    const directoryPath = await createMigration({
      baseDir,
      generatedMigrationName,
    }).catch((e: Error) => {
      throw new Error(`Failed to create a new migration directory: ${e.message}`)
    })

    await writeMigrationScript({
      baseDir,
      extension,
      migrationName: generatedMigrationName,
      script: migrationScript,
    }).catch((e: Error) => {
      throw new Error(`Failed to write migration script to ${directoryPath}: ${e.message}`)
    })

    await writeMigrationLockfile({
      baseDir,
      connectorType,
      lockfile,
    }).catch((e: Error) => {
      throw new Error(`Failed to write the migration lock file to ${baseDir}: ${e.message}`)
    })

    return {
      generatedMigrationName,
    }
  }

  public async diagnoseMigrationHistory({
    optInToShadowDatabase,