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, 44 deletions

diff --git a/server/helpers/ffmpeg/framerate.ts b/server/helpers/ffmpeg/framerate.ts
deleted file mode 100644
index 18cb0e0e2..000000000
--- a/server/helpers/ffmpeg/framerate.ts
+++ /dev/null
@@ -1,44 +0,0 @@
-import { VIDEO_TRANSCODING_FPS } from '@server/initializers/constants'
-import { VideoResolution } from '@shared/models'
-
-export function computeOutputFPS (options: {
-  inputFPS: number
-  resolution: VideoResolution
-}) {
-  const { resolution } = options
-
-  let fps = options.inputFPS
-
-  if (
-    // On small/medium resolutions, limit FPS
-    resolution !== undefined &&
-    resolution < VIDEO_TRANSCODING_FPS.KEEP_ORIGIN_FPS_RESOLUTION_MIN &&
-    fps > VIDEO_TRANSCODING_FPS.AVERAGE
-  ) {
-    // Get closest standard framerate by modulo: downsampling has to be done to a divisor of the nominal fps value
-    fps = getClosestFramerateStandard({ fps, type: 'STANDARD' })
-  }
-
-  // Hard FPS limits
-  if (fps > VIDEO_TRANSCODING_FPS.MAX) fps = getClosestFramerateStandard({ fps, type: 'HD_STANDARD' })
-
-  if (fps < VIDEO_TRANSCODING_FPS.MIN) {
-    throw new Error(`Cannot compute FPS because ${fps} is lower than our minimum value ${VIDEO_TRANSCODING_FPS.MIN}`)
-  }
-
-  return fps
-}
-
-// ---------------------------------------------------------------------------
-// Private
-// ---------------------------------------------------------------------------
-
-function getClosestFramerateStandard (options: {
-  fps: number
-  type: 'HD_STANDARD' | 'STANDARD'
-}) {
-  const { fps, type } = options
-
-  return VIDEO_TRANSCODING_FPS[type].slice(0)
-                                    .sort((a, b) => fps % a - fps % b)[0]
-}