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, 35 deletions

diff --git a/server/lib/internal-event-emitter.ts b/server/lib/internal-event-emitter.ts
deleted file mode 100644
index 08b46a5c3..000000000
--- a/server/lib/internal-event-emitter.ts
+++ /dev/null
@@ -1,35 +0,0 @@
-import { MChannel, MVideo } from '@server/types/models'
-import { EventEmitter } from 'events'
-
-export interface PeerTubeInternalEvents {
-  'video-created': (options: { video: MVideo }) => void
-  'video-updated': (options: { video: MVideo }) => void
-  'video-deleted': (options: { video: MVideo }) => void
-
-  'channel-created': (options: { channel: MChannel }) => void
-  'channel-updated': (options: { channel: MChannel }) => void
-  'channel-deleted': (options: { channel: MChannel }) => void
-}
-
-declare interface InternalEventEmitter {
-  on<U extends keyof PeerTubeInternalEvents>(
-    event: U, listener: PeerTubeInternalEvents[U]
-  ): this
-
-  emit<U extends keyof PeerTubeInternalEvents>(
-    event: U, ...args: Parameters<PeerTubeInternalEvents[U]>
-  ): boolean
-}
-
-class InternalEventEmitter extends EventEmitter {
-
-  private static instance: InternalEventEmitter
-
-  static get Instance () {
-    return this.instance || (this.instance = new this())
-  }
-}
-
-export {
-  InternalEventEmitter
-}