Migrate server to ESM

Sorry for the very big commit that may lead to git log issues and merge
conflicts, but it's a major step forward:

 * Server can be faster at startup because imports() are async and we can
   easily lazy import big modules
 * Angular doesn't seem to support ES import (with .js extension), so we
   had to correctly organize peertube into a monorepo:
    * Use yarn workspace feature
    * Use typescript reference projects for dependencies
    * Shared projects have been moved into "packages", each one is now a
      node module (with a dedicated package.json/tsconfig.json)
    * server/tools have been moved into apps/ and is now a dedicated app
      bundled and published on NPM so users don't have to build peertube
      cli tools manually
    * server/tests have been moved into packages/ so we don't compile
      them every time we want to run the server
 * Use isolatedModule option:
   * Had to move from const enum to const
     (https://www.typescriptlang.org/docs/handbook/enums.html#objects-vs-enums)
   * Had to explictely specify "type" imports when used in decorators
 * Prefer tsx (that uses esbuild under the hood) instead of ts-node to
   load typescript files (tests with mocha or scripts):
     * To reduce test complexity as esbuild doesn't support decorator
       metadata, we only test server files that do not import server
       models
     * We still build tests files into js files for a faster CI
 * Remove unmaintained peertube CLI import script
 * Removed some barrels to speed up execution (less imports)

1 files changed, 0 insertions, 154 deletions

diff --git a/server/lib/video-state.ts b/server/lib/video-state.ts
deleted file mode 100644
index 893725d85..000000000
--- a/server/lib/video-state.ts
+++ /dev/null
@@ -1,154 +0,0 @@
-import { Transaction } from 'sequelize'
-import { retryTransactionWrapper } from '@server/helpers/database-utils'
-import { logger } from '@server/helpers/logger'
-import { CONFIG } from '@server/initializers/config'
-import { sequelizeTypescript } from '@server/initializers/database'
-import { VideoModel } from '@server/models/video/video'
-import { VideoJobInfoModel } from '@server/models/video/video-job-info'
-import { MVideo, MVideoFullLight, MVideoUUID } from '@server/types/models'
-import { VideoState } from '@shared/models'
-import { federateVideoIfNeeded } from './activitypub/videos'
-import { JobQueue } from './job-queue'
-import { Notifier } from './notifier'
-import { buildMoveToObjectStorageJob } from './video'
-
-function buildNextVideoState (currentState?: VideoState) {
-  if (currentState === VideoState.PUBLISHED) {
-    throw new Error('Video is already in its final state')
-  }
-
-  if (
-    currentState !== VideoState.TO_EDIT &&
-    currentState !== VideoState.TO_TRANSCODE &&
-    currentState !== VideoState.TO_MOVE_TO_EXTERNAL_STORAGE &&
-    CONFIG.TRANSCODING.ENABLED
-  ) {
-    return VideoState.TO_TRANSCODE
-  }
-
-  if (
-    currentState !== VideoState.TO_MOVE_TO_EXTERNAL_STORAGE &&
-    CONFIG.OBJECT_STORAGE.ENABLED
-  ) {
-    return VideoState.TO_MOVE_TO_EXTERNAL_STORAGE
-  }
-
-  return VideoState.PUBLISHED
-}
-
-function moveToNextState (options: {
-  video: MVideoUUID
-  previousVideoState?: VideoState
-  isNewVideo?: boolean // Default true
-}) {
-  const { video, previousVideoState, isNewVideo = true } = options
-
-  return retryTransactionWrapper(() => {
-    return sequelizeTypescript.transaction(async t => {
-      // Maybe the video changed in database, refresh it
-      const videoDatabase = await VideoModel.loadFull(video.uuid, t)
-      // Video does not exist anymore
-      if (!videoDatabase) return undefined
-
-      // Already in its final state
-      if (videoDatabase.state === VideoState.PUBLISHED) {
-        return federateVideoIfNeeded(videoDatabase, false, t)
-      }
-
-      const newState = buildNextVideoState(videoDatabase.state)
-
-      if (newState === VideoState.PUBLISHED) {
-        return moveToPublishedState({ video: videoDatabase, previousVideoState, isNewVideo, transaction: t })
-      }
-
-      if (newState === VideoState.TO_MOVE_TO_EXTERNAL_STORAGE) {
-        return moveToExternalStorageState({ video: videoDatabase, isNewVideo, transaction: t })
-      }
-    })
-  })
-}
-
-async function moveToExternalStorageState (options: {
-  video: MVideoFullLight
-  isNewVideo: boolean
-  transaction: Transaction
-}) {
-  const { video, isNewVideo, transaction } = options
-
-  const videoJobInfo = await VideoJobInfoModel.load(video.id, transaction)
-  const pendingTranscode = videoJobInfo?.pendingTranscode || 0
-
-  // We want to wait all transcoding jobs before moving the video on an external storage
-  if (pendingTranscode !== 0) return false
-
-  const previousVideoState = video.state
-
-  if (video.state !== VideoState.TO_MOVE_TO_EXTERNAL_STORAGE) {
-    await video.setNewState(VideoState.TO_MOVE_TO_EXTERNAL_STORAGE, isNewVideo, transaction)
-  }
-
-  logger.info('Creating external storage move job for video %s.', video.uuid, { tags: [ video.uuid ] })
-
-  try {
-    await JobQueue.Instance.createJob(await buildMoveToObjectStorageJob({ video, previousVideoState, isNewVideo }))
-
-    return true
-  } catch (err) {
-    logger.error('Cannot add move to object storage job', { err })
-
-    return false
-  }
-}
-
-function moveToFailedTranscodingState (video: MVideo) {
-  if (video.state === VideoState.TRANSCODING_FAILED) return
-
-  return video.setNewState(VideoState.TRANSCODING_FAILED, false, undefined)
-}
-
-function moveToFailedMoveToObjectStorageState (video: MVideo) {
-  if (video.state === VideoState.TO_MOVE_TO_EXTERNAL_STORAGE_FAILED) return
-
-  return video.setNewState(VideoState.TO_MOVE_TO_EXTERNAL_STORAGE_FAILED, false, undefined)
-}
-
-// ---------------------------------------------------------------------------
-
-export {
-  buildNextVideoState,
-  moveToExternalStorageState,
-  moveToFailedTranscodingState,
-  moveToFailedMoveToObjectStorageState,
-  moveToNextState
-}
-
-// ---------------------------------------------------------------------------
-
-async function moveToPublishedState (options: {
-  video: MVideoFullLight
-  isNewVideo: boolean
-  transaction: Transaction
-  previousVideoState?: VideoState
-}) {
-  const { video, isNewVideo, transaction, previousVideoState } = options
-  const previousState = previousVideoState ?? video.state
-
-  logger.info('Publishing video %s.', video.uuid, { isNewVideo, previousState, tags: [ video.uuid ] })
-
-  await video.setNewState(VideoState.PUBLISHED, isNewVideo, transaction)
-
-  await federateVideoIfNeeded(video, isNewVideo, transaction)
-
-  if (previousState === VideoState.TO_EDIT) {
-    Notifier.Instance.notifyOfFinishedVideoStudioEdition(video)
-    return
-  }
-
-  if (isNewVideo) {
-    Notifier.Instance.notifyOnNewVideoIfNeeded(video)
-
-    if (previousState === VideoState.TO_TRANSCODE) {
-      Notifier.Instance.notifyOnVideoPublishedAfterTranscoding(video)
-    }
-  }
-}