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)

3 files changed, 0 insertions, 85 deletions

diff --git a/server/lib/model-loaders/actor.ts b/server/lib/model-loaders/actor.ts
deleted file mode 100644
index 1355d8ee2..000000000
--- a/server/lib/model-loaders/actor.ts
+++ /dev/null
@@ -1,17 +0,0 @@
-
-import { ActorModel } from '../../models/actor/actor'
-import { MActorAccountChannelId, MActorFull } from '../../types/models'
-
-type ActorLoadByUrlType = 'all' | 'association-ids'
-
-function loadActorByUrl (url: string, fetchType: ActorLoadByUrlType): Promise<MActorFull | MActorAccountChannelId> {
-  if (fetchType === 'all') return ActorModel.loadByUrlAndPopulateAccountAndChannel(url)
-
-  if (fetchType === 'association-ids') return ActorModel.loadByUrl(url)
-}
-
-export {
-  ActorLoadByUrlType,
-
-  loadActorByUrl
-}
diff --git a/server/lib/model-loaders/index.ts b/server/lib/model-loaders/index.ts
deleted file mode 100644
index 9e5152cb2..000000000
--- a/server/lib/model-loaders/index.ts
+++ /dev/null
@@ -1,2 +0,0 @@
-export * from './actor'
-export * from './video'
diff --git a/server/lib/model-loaders/video.ts b/server/lib/model-loaders/video.ts
deleted file mode 100644
index 91057d405..000000000
--- a/server/lib/model-loaders/video.ts
+++ /dev/null
@@ -1,66 +0,0 @@
-import { VideoModel } from '@server/models/video/video'
-import {
-  MVideoAccountLightBlacklistAllFiles,
-  MVideoFormattableDetails,
-  MVideoFullLight,
-  MVideoId,
-  MVideoImmutable,
-  MVideoThumbnail
-} from '@server/types/models'
-
-type VideoLoadType = 'for-api' | 'all' | 'only-video' | 'id' | 'none' | 'only-immutable-attributes'
-
-function loadVideo (id: number | string, fetchType: 'for-api', userId?: number): Promise<MVideoFormattableDetails>
-function loadVideo (id: number | string, fetchType: 'all', userId?: number): Promise<MVideoFullLight>
-function loadVideo (id: number | string, fetchType: 'only-immutable-attributes'): Promise<MVideoImmutable>
-function loadVideo (id: number | string, fetchType: 'only-video', userId?: number): Promise<MVideoThumbnail>
-function loadVideo (id: number | string, fetchType: 'id' | 'none', userId?: number): Promise<MVideoId>
-function loadVideo (
-  id: number | string,
-  fetchType: VideoLoadType,
-  userId?: number
-): Promise<MVideoFullLight | MVideoThumbnail | MVideoId | MVideoImmutable>
-function loadVideo (
-  id: number | string,
-  fetchType: VideoLoadType,
-  userId?: number
-): Promise<MVideoFullLight | MVideoThumbnail | MVideoId | MVideoImmutable> {
-
-  if (fetchType === 'for-api') return VideoModel.loadForGetAPI({ id, userId })
-
-  if (fetchType === 'all') return VideoModel.loadFull(id, undefined, userId)
-
-  if (fetchType === 'only-immutable-attributes') return VideoModel.loadImmutableAttributes(id)
-
-  if (fetchType === 'only-video') return VideoModel.load(id)
-
-  if (fetchType === 'id' || fetchType === 'none') return VideoModel.loadOnlyId(id)
-}
-
-type VideoLoadByUrlType = 'all' | 'only-video' | 'only-immutable-attributes'
-
-function loadVideoByUrl (url: string, fetchType: 'all'): Promise<MVideoAccountLightBlacklistAllFiles>
-function loadVideoByUrl (url: string, fetchType: 'only-immutable-attributes'): Promise<MVideoImmutable>
-function loadVideoByUrl (url: string, fetchType: 'only-video'): Promise<MVideoThumbnail>
-function loadVideoByUrl (
-  url: string,
-  fetchType: VideoLoadByUrlType
-): Promise<MVideoAccountLightBlacklistAllFiles | MVideoThumbnail | MVideoImmutable>
-function loadVideoByUrl (
-  url: string,
-  fetchType: VideoLoadByUrlType
-): Promise<MVideoAccountLightBlacklistAllFiles | MVideoThumbnail | MVideoImmutable> {
-  if (fetchType === 'all') return VideoModel.loadByUrlAndPopulateAccount(url)
-
-  if (fetchType === 'only-immutable-attributes') return VideoModel.loadByUrlImmutableAttributes(url)
-
-  if (fetchType === 'only-video') return VideoModel.loadByUrl(url)
-}
-
-export {
-  VideoLoadType,
-  VideoLoadByUrlType,
-
-  loadVideo,
-  loadVideoByUrl
-}