2 files changed, 70 insertions, 59 deletions

diff --git a/server/helpers/youtube-dl.ts b/server/helpers/youtube-dl.ts
index 6738090f3..db2bddf78 100644
--- a/server/helpers/youtube-dl.ts
+++ b/server/helpers/youtube-dl.ts
@@ -2,7 +2,11 @@ import { truncate } from 'lodash'
 import { CONSTRAINTS_FIELDS, VIDEO_CATEGORIES } from '../initializers'
 import { logger } from './logger'
 import { generateVideoTmpPath } from './utils'
-import { YoutubeDlUpdateScheduler } from '../lib/schedulers/youtube-dl-update-scheduler'
+import { join } from 'path'
+import { root } from './core-utils'
+import { ensureDir, writeFile } from 'fs-extra'
+import * as request from 'request'
+import { createWriteStream } from 'fs'
 
 export type YoutubeDLInfo = {
   name?: string
@@ -40,7 +44,7 @@ function downloadYoutubeDLVideo (url: string) {
 
   return new Promise<string>(async (res, rej) => {
     const youtubeDL = await safeGetYoutubeDL()
-    youtubeDL.exec(url, options, async (err, output) => {
+    youtubeDL.exec(url, options, err => {
       if (err) return rej(err)
 
       return res(path)
@@ -48,9 +52,68 @@ function downloadYoutubeDLVideo (url: string) {
   })
 }
 
+// Thanks: https://github.com/przemyslawpluta/node-youtube-dl/blob/master/lib/downloader.js
+// We rewrote it to avoid sync calls
+async function updateYoutubeDLBinary () {
+  logger.info('Updating youtubeDL binary.')
+
+  const binDirectory = join(root(), 'node_modules', 'youtube-dl', 'bin')
+  const bin = join(binDirectory, 'youtube-dl')
+  const detailsPath = join(binDirectory, 'details')
+  const url = 'https://yt-dl.org/downloads/latest/youtube-dl'
+
+  await ensureDir(binDirectory)
+
+  return new Promise(res => {
+    request.get(url, { followRedirect: false }, (err, result) => {
+      if (err) {
+        logger.error('Cannot update youtube-dl.', { err })
+        return res()
+      }
+
+      if (result.statusCode !== 302) {
+        logger.error('youtube-dl update error: did not get redirect for the latest version link. Status %d', result.statusCode)
+        return res()
+      }
+
+      const url = result.headers.location
+      const downloadFile = request.get(url)
+      const newVersion = /yt-dl\.org\/downloads\/(\d{4}\.\d\d\.\d\d(\.\d)?)\/youtube-dl/.exec(url)[ 1 ]
+
+      downloadFile.on('response', result => {
+        if (result.statusCode !== 200) {
+          logger.error('Cannot update youtube-dl: new version response is not 200, it\'s %d.', result.statusCode)
+          return res()
+        }
+
+        downloadFile.pipe(createWriteStream(bin, { mode: 493 }))
+      })
+
+      downloadFile.on('error', err => {
+        logger.error('youtube-dl update error.', { err })
+        return res()
+      })
+
+      downloadFile.on('end', () => {
+        const details = JSON.stringify({ version: newVersion, path: bin, exec: 'youtube-dl' })
+        writeFile(detailsPath, details, { encoding: 'utf8' }, err => {
+          if (err) {
+            logger.error('youtube-dl update error: cannot write details.', { err })
+            return res()
+          }
+
+          logger.info('youtube-dl updated to version %s.', newVersion)
+          return res()
+        })
+      })
+    })
+  })
+}
+
 // ---------------------------------------------------------------------------
 
 export {
+  updateYoutubeDLBinary,
   downloadYoutubeDLVideo,
   getYoutubeDLInfo
 }
@@ -64,7 +127,7 @@ async function safeGetYoutubeDL () {
     youtubeDL = require('youtube-dl')
   } catch (e) {
     // Download binary
-    await YoutubeDlUpdateScheduler.Instance.execute()
+    await updateYoutubeDLBinary()
     youtubeDL = require('youtube-dl')
   }
 
diff --git a/server/lib/schedulers/youtube-dl-update-scheduler.ts b/server/lib/schedulers/youtube-dl-update-scheduler.ts
index faadb4334..2fc8950fe 100644
--- a/server/lib/schedulers/youtube-dl-update-scheduler.ts
+++ b/server/lib/schedulers/youtube-dl-update-scheduler.ts
@@ -1,5 +1,4 @@
-// Thanks: https://github.com/przemyslawpluta/node-youtube-dl/blob/master/lib/downloader.js
-// We rewrote it to avoid sync calls
+
 
 import { AbstractScheduler } from './abstract-scheduler'
 import { SCHEDULER_INTERVALS_MS } from '../../initializers'
@@ -8,6 +7,7 @@ import * as request from 'request'
 import { createWriteStream, ensureDir, writeFile } from 'fs-extra'
 import { join } from 'path'
 import { root } from '../../helpers/core-utils'
+import { updateYoutubeDLBinary } from '../../helpers/youtube-dl'
 
 export class YoutubeDlUpdateScheduler extends AbstractScheduler {
 
@@ -19,60 +19,8 @@ export class YoutubeDlUpdateScheduler extends AbstractScheduler {
     super()
   }
 
-  async execute () {
-    logger.info('Updating youtubeDL binary.')
-
-    const binDirectory = join(root(), 'node_modules', 'youtube-dl', 'bin')
-    const bin = join(binDirectory, 'youtube-dl')
-    const detailsPath = join(binDirectory, 'details')
-    const url = 'https://yt-dl.org/downloads/latest/youtube-dl'
-
-    await ensureDir(binDirectory)
-
-    return new Promise(res => {
-      request.get(url, { followRedirect: false }, (err, result) => {
-        if (err) {
-          logger.error('Cannot update youtube-dl.', { err })
-          return res()
-        }
-
-        if (result.statusCode !== 302) {
-          logger.error('youtube-dl update error: did not get redirect for the latest version link. Status %d', result.statusCode)
-          return res()
-        }
-
-        const url = result.headers.location
-        const downloadFile = request.get(url)
-        const newVersion = /yt-dl\.org\/downloads\/(\d{4}\.\d\d\.\d\d(\.\d)?)\/youtube-dl/.exec(url)[ 1 ]
-
-        downloadFile.on('response', result => {
-          if (result.statusCode !== 200) {
-            logger.error('Cannot update youtube-dl: new version response is not 200, it\'s %d.', result.statusCode)
-            return res()
-          }
-
-          downloadFile.pipe(createWriteStream(bin, { mode: 493 }))
-        })
-
-        downloadFile.on('error', err => {
-          logger.error('youtube-dl update error.', { err })
-          return res()
-        })
-
-        downloadFile.on('end', () => {
-          const details = JSON.stringify({ version: newVersion, path: bin, exec: 'youtube-dl' })
-          writeFile(detailsPath, details, { encoding: 'utf8' }, err => {
-            if (err) {
-              logger.error('youtube-dl update error: cannot write details.', { err })
-              return res()
-            }
-
-            logger.info('youtube-dl updated to version %s.', newVersion)
-            return res()
-          })
-        })
-      })
-    })
+  execute () {
+    return updateYoutubeDLBinary()
   }
 
   static get Instance () {