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, 30 deletions

diff --git a/server/lib/files-cache/shared/abstract-simple-file-cache.ts b/server/lib/files-cache/shared/abstract-simple-file-cache.ts
deleted file mode 100644
index 6fab322cd..000000000
--- a/server/lib/files-cache/shared/abstract-simple-file-cache.ts
+++ /dev/null
@@ -1,30 +0,0 @@
-import { remove } from 'fs-extra'
-import { logger } from '../../../helpers/logger'
-import memoizee from 'memoizee'
-
-type GetFilePathResult = { isOwned: boolean, path: string, downloadName?: string } | undefined
-
-export abstract class AbstractSimpleFileCache <T> {
-
-  getFilePath: (params: T) => Promise<GetFilePathResult>
-
-  abstract getFilePathImpl (params: T): Promise<GetFilePathResult>
-
-  // Load and save the remote file, then return the local path from filesystem
-  protected abstract loadRemoteFile (key: string): Promise<GetFilePathResult>
-
-  init (max: number, maxAge: number) {
-    this.getFilePath = memoizee(this.getFilePathImpl, {
-      maxAge,
-      max,
-      promise: true,
-      dispose: (result?: GetFilePathResult) => {
-        if (result && result.isOwned !== true) {
-          remove(result.path)
-            .then(() => logger.debug('%s removed from %s', result.path, this.constructor.name))
-            .catch(err => logger.error('Cannot remove %s from cache %s.', result.path, this.constructor.name, { err }))
-        }
-      }
-    })
-  }
-}