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, 39 deletions

diff --git a/server/initializers/migrations/0535-video-live.ts b/server/initializers/migrations/0535-video-live.ts
deleted file mode 100644
index 7501e080b..000000000
--- a/server/initializers/migrations/0535-video-live.ts
+++ /dev/null
@@ -1,39 +0,0 @@
-import * as Sequelize from 'sequelize'
-
-async function up (utils: {
-  transaction: Sequelize.Transaction
-  queryInterface: Sequelize.QueryInterface
-  sequelize: Sequelize.Sequelize
-}): Promise<void> {
-  {
-    const query = `
-    CREATE TABLE IF NOT EXISTS "videoLive" (
-      "id"   SERIAL ,
-      "streamKey" VARCHAR(255),
-      "videoId" INTEGER NOT NULL REFERENCES "video" ("id") ON DELETE CASCADE ON UPDATE CASCADE,
-      "createdAt" TIMESTAMP WITH TIME ZONE NOT NULL,
-      "updatedAt" TIMESTAMP WITH TIME ZONE NOT NULL,
-      PRIMARY KEY ("id")
-    );
-    `
-
-    await utils.sequelize.query(query)
-  }
-
-  {
-    await utils.queryInterface.addColumn('video', 'isLive', {
-      type: Sequelize.BOOLEAN,
-      defaultValue: false,
-      allowNull: false
-    })
-  }
-}
-
-function down (options) {
-  throw new Error('Not implemented.')
-}
-
-export {
-  up,
-  down
-}