replace fs by fs-extra to prevent EMFILE error

package.json

@@ -100,6 +100,7 @@
     "express-validator": "^5.0.0",
     "flat": "^4.1.0",
     "fluent-ffmpeg": "^2.1.0",
+    "fs-extra": "^7.0.0",
     "helmet": "^3.12.1",
     "ip-anonymize": "^0.0.6",
     "ipaddr.js": "https://github.com/whitequark/ipaddr.js.git#8e69afeb4053ee32447a101845f860848280eca5",
@@ -110,7 +111,6 @@
     "jsonld-signatures": "https://github.com/Chocobozzz/jsonld-signatures#rsa2017",
     "lodash": "^4.17.10",
     "magnet-uri": "^5.1.4",
-    "mkdirp": "^0.5.1",
     "morgan": "^1.5.3",
     "multer": "^1.1.0",
     "nodemailer": "^4.4.2",

scripts/generate-code-contributors.ts

 import { doRequest } from '../server/helpers/requests'
-import { readFileSync } from 'fs'
+import { readFileSync } from 'fs-extra'
 
 run()
   .then(() => process.exit(0))

scripts/i18n/create-custom-files.ts

 import * as jsToXliff12 from 'xliff/jsToXliff12'
-import { writeFile } from 'fs'
+import { writeFile } from 'fs-extra'
 import { join } from 'path'
 import {
   buildLanguages,

scripts/i18n/xliff2json.ts

 import * as xliff12ToJs from 'xliff/xliff12ToJs'
-import { readFileSync, unlink, writeFile } from 'fs'
+import { readFileSync, unlink, writeFile } from 'fs-extra'
 import { join } from 'path'
 import { buildFileLocale, I18N_LOCALES, isDefaultLocale } from '../../shared/models/i18n/i18n'
 import { eachSeries } from 'async'

scripts/parse-log.ts

 import * as program from 'commander'
-import { createReadStream, readdirSync, statSync } from 'fs'
+import { createReadStream, readdirSync, statSync } from 'fs-extra'
 import { join } from 'path'
 import { createInterface } from 'readline'
 import * as winston from 'winston'

server/controllers/static.ts

 import * as cors from 'cors'
-import { createReadStream } from 'fs'
+import { createReadStream } from 'fs-extra'
 import * as express from 'express'
 import { CONFIG, STATIC_DOWNLOAD_PATHS, STATIC_MAX_AGE, STATIC_PATHS, ROUTE_CACHE_LIFETIME } from '../initializers'
 import { VideosPreviewCache } from '../lib/cache'

server/helpers/captions-utils.ts

@@ -3,7 +3,7 @@ import { join } from 'path'
 import { CONFIG } from '../initializers'
 import { VideoCaptionModel } from '../models/video/video-caption'
 import * as srt2vtt from 'srt-to-vtt'
-import { createReadStream, createWriteStream } from 'fs'
+import { createReadStream, createWriteStream } from 'fs-extra'
 
 async function moveAndProcessCaptionFile (physicalFile: { filename: string, path: string }, videoCaption: VideoCaptionModel) {
   const videoCaptionsDir = CONFIG.STORAGE.CAPTIONS_DIR

server/helpers/core-utils.ts

@@ -6,8 +6,7 @@
 import * as bcrypt from 'bcrypt'
 import * as createTorrent from 'create-torrent'
 import { createHash, pseudoRandomBytes } from 'crypto'
-import { copyFile, readdir, readFile, rename, stat, Stats, unlink, writeFile } from 'fs'
-import * as mkdirp from 'mkdirp'
+import { copyFile, readdir, readFile, rename, stat, Stats, unlink, writeFile, mkdirp } from 'fs-extra'
 import { isAbsolute, join } from 'path'
 import * as pem from 'pem'
 import * as rimraf from 'rimraf'

server/helpers/logger.ts

 // Thanks http://tostring.it/2014/06/23/advanced-logging-with-nodejs/
-import * as mkdirp from 'mkdirp'
+import { mkdirpSync } from 'fs-extra'
 import * as path from 'path'
 import * as winston from 'winston'
 import { CONFIG } from '../initializers'
@@ -7,7 +7,7 @@ import { CONFIG } from '../initializers'
 const label = CONFIG.WEBSERVER.HOSTNAME + ':' + CONFIG.WEBSERVER.PORT
 
 // Create the directory if it does not exist
-mkdirp.sync(CONFIG.STORAGE.LOG_DIR)
+mkdirpSync(CONFIG.STORAGE.LOG_DIR)
 
 function loggerReplacer (key: string, value: any) {
   if (value instanceof Error) {

server/helpers/requests.ts

 import * as Bluebird from 'bluebird'
-import { createWriteStream } from 'fs'
+import { createWriteStream } from 'fs-extra'
 import * as request from 'request'
 import { ACTIVITY_PUB } from '../initializers'
 

server/helpers/webtorrent.ts

 import { logger } from './logger'
 import { generateVideoTmpPath } from './utils'
 import * as WebTorrent from 'webtorrent'
-import { createWriteStream } from 'fs'
+import { createWriteStream } from 'fs-extra'
 import { CONFIG } from '../initializers'
 import { join } from 'path'
 import { unlinkPromise } from './core-utils'

server/initializers/migrations/0065-video-file-size.ts

 import * as Sequelize from 'sequelize'
 import * as Promise from 'bluebird'
-import { stat } from 'fs'
+import { stat } from 'fs-extra'
 import { VideoModel } from '../../models/video/video'
 
 function up (utils: {

server/lib/cache/abstract-video-static-file-cache.ts

 import * as AsyncLRU from 'async-lru'
-import { createWriteStream } from 'fs'
+import { createWriteStream } from 'fs-extra'
 import { unlinkPromise } from '../../helpers/core-utils'
 import { logger } from '../../helpers/logger'
 import { VideoModel } from '../../models/video/video'

server/lib/emailer.ts

@@ -7,7 +7,7 @@ import { UserModel } from '../models/account/user'
 import { VideoModel } from '../models/video/video'
 import { JobQueue } from './job-queue'
 import { EmailPayload } from './job-queue/handlers/email'
-import { readFileSync } from 'fs'
+import { readFileSync } from 'fs-extra'
 
 class Emailer {
 

server/lib/schedulers/youtube-dl-update-scheduler.ts

@@ -5,7 +5,7 @@ import { AbstractScheduler } from './abstract-scheduler'
 import { SCHEDULER_INTERVALS_MS } from '../../initializers'
 import { logger } from '../../helpers/logger'
 import * as request from 'request'
-import { createWriteStream, writeFile } from 'fs'
+import { createWriteStream, writeFile } from 'fs-extra'
 import { join } from 'path'
 import { mkdirpPromise, root } from '../../helpers/core-utils'
 

server/tests/utils/users/accounts.ts

 /* tslint:disable:no-unused-expression */
 
 import { expect } from 'chai'
-import { existsSync } from 'fs'
+import { existsSync } from 'fs-extra'
 import { join } from 'path'
 import { Account } from '../../../../shared/models/actors'
 import { readdirPromise } from '../../../helpers/core-utils'

server/tests/utils/videos/videos.ts

 /* tslint:disable:no-unused-expression */
 
 import { expect } from 'chai'
-import { existsSync, readFile } from 'fs'
+import { existsSync, readFile } from 'fs-extra'
 import * as parseTorrent from 'parse-torrent'
 import { extname, join } from 'path'
 import * as request from 'supertest'

server/tools/upload.ts

 import * as program from 'commander'
-import { access, constants } from 'fs'
+import { access, constants } from 'fs-extra'
 import { isAbsolute } from 'path'
 import { promisify } from 'util'
 import { getClient, login } from '../tests/utils'