mirror of https://github.com/Chocobozzz/PeerTube
122 lines
3.3 KiB
TypeScript
122 lines
3.3 KiB
TypeScript
import retry from 'async/retry'
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import Bluebird from 'bluebird'
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import { Transaction } from 'sequelize'
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import { Model } from 'sequelize-typescript'
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import { sequelizeTypescript } from '@server/initializers/database'
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import { logger } from './logger'
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function retryTransactionWrapper <T, A, B, C, D> (
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functionToRetry: (arg1: A, arg2: B, arg3: C, arg4: D) => Promise<T>,
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arg1: A,
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arg2: B,
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arg3: C,
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arg4: D,
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): Promise<T>
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function retryTransactionWrapper <T, A, B, C> (
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functionToRetry: (arg1: A, arg2: B, arg3: C) => Promise<T>,
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arg1: A,
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arg2: B,
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arg3: C
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): Promise<T>
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function retryTransactionWrapper <T, A, B> (
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functionToRetry: (arg1: A, arg2: B) => Promise<T>,
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arg1: A,
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arg2: B
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): Promise<T>
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function retryTransactionWrapper <T, A> (
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functionToRetry: (arg1: A) => Promise<T>,
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arg1: A
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): Promise<T>
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function retryTransactionWrapper <T> (
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functionToRetry: () => Promise<T> | Bluebird<T>
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): Promise<T>
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function retryTransactionWrapper <T> (
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functionToRetry: (...args: any[]) => Promise<T>,
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...args: any[]
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): Promise<T> {
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return transactionRetryer<T>(callback => {
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functionToRetry.apply(null, args)
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.then((result: T) => callback(null, result))
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.catch(err => callback(err))
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})
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.catch(err => {
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logger.warn(`Cannot execute ${functionToRetry.name} with many retries.`, { err })
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throw err
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})
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}
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function transactionRetryer <T> (func: (err: any, data: T) => any) {
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return new Promise<T>((res, rej) => {
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retry(
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{
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times: 5,
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errorFilter: err => {
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const willRetry = (err.name === 'SequelizeDatabaseError')
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logger.debug('Maybe retrying the transaction function.', { willRetry, err, tags: [ 'sql', 'retry' ] })
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return willRetry
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}
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},
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func,
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(err, data) => err ? rej(err) : res(data)
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)
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})
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}
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function saveInTransactionWithRetries <T extends Pick<Model, 'save'>> (model: T) {
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return retryTransactionWrapper(() => {
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return sequelizeTypescript.transaction(async transaction => {
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await model.save({ transaction })
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})
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})
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}
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// ---------------------------------------------------------------------------
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function resetSequelizeInstance <T> (instance: Model<T>) {
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return instance.reload()
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}
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function filterNonExistingModels <T extends { hasSameUniqueKeysThan (other: T): boolean }> (
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fromDatabase: T[],
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newModels: T[]
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) {
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return fromDatabase.filter(f => !newModels.find(newModel => newModel.hasSameUniqueKeysThan(f)))
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}
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function deleteAllModels <T extends Pick<Model, 'destroy'>> (models: T[], transaction: Transaction) {
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return Promise.all(models.map(f => f.destroy({ transaction })))
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}
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// ---------------------------------------------------------------------------
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function runInReadCommittedTransaction <T> (fn: (t: Transaction) => Promise<T>) {
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const options = { isolationLevel: Transaction.ISOLATION_LEVELS.READ_COMMITTED }
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return sequelizeTypescript.transaction(options, t => fn(t))
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}
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function afterCommitIfTransaction (t: Transaction, fn: Function) {
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if (t) return t.afterCommit(() => fn())
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return fn()
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}
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// ---------------------------------------------------------------------------
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export {
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resetSequelizeInstance,
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retryTransactionWrapper,
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transactionRetryer,
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saveInTransactionWithRetries,
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afterCommitIfTransaction,
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filterNonExistingModels,
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deleteAllModels,
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runInReadCommittedTransaction
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}
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