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, 96 deletions

diff --git a/server/tests/helpers/image.ts b/server/tests/helpers/image.ts
deleted file mode 100644
index 6021ffc48..000000000
--- a/server/tests/helpers/image.ts
+++ /dev/null
@@ -1,96 +0,0 @@
-/* eslint-disable @typescript-eslint/no-unused-expressions,@typescript-eslint/require-await */
-
-import { expect } from 'chai'
-import { readFile, remove } from 'fs-extra'
-import { join } from 'path'
-import { execPromise } from '@server/helpers/core-utils'
-import { buildAbsoluteFixturePath, root } from '@shared/core-utils'
-import { processImage } from '../../../server/helpers/image-utils'
-
-async function checkBuffers (path1: string, path2: string, equals: boolean) {
-  const [ buf1, buf2 ] = await Promise.all([
-    readFile(path1),
-    readFile(path2)
-  ])
-
-  if (equals) {
-    expect(buf1.equals(buf2)).to.be.true
-  } else {
-    expect(buf1.equals(buf2)).to.be.false
-  }
-}
-
-async function hasTitleExif (path: string) {
-  const result = JSON.parse(await execPromise(`exiftool -json ${path}`))
-
-  return result[0]?.Title === 'should be removed'
-}
-
-describe('Image helpers', function () {
-  const imageDestDir = join(root(), 'test-images')
-
-  const imageDestJPG = join(imageDestDir, 'test.jpg')
-  const imageDestPNG = join(imageDestDir, 'test.png')
-
-  const thumbnailSize = { width: 280, height: 157 }
-
-  it('Should skip processing if the source image is okay', async function () {
-    const input = buildAbsoluteFixturePath('custom-thumbnail.jpg')
-    await processImage({ path: input, destination: imageDestJPG, newSize: thumbnailSize, keepOriginal: true })
-
-    await checkBuffers(input, imageDestJPG, true)
-  })
-
-  it('Should not skip processing if the source image does not have the appropriate extension', async function () {
-    const input = buildAbsoluteFixturePath('custom-thumbnail.png')
-    await processImage({ path: input, destination: imageDestJPG, newSize: thumbnailSize, keepOriginal: true })
-
-    await checkBuffers(input, imageDestJPG, false)
-  })
-
-  it('Should not skip processing if the source image does not have the appropriate size', async function () {
-    const input = buildAbsoluteFixturePath('custom-preview.jpg')
-    await processImage({ path: input, destination: imageDestJPG, newSize: thumbnailSize, keepOriginal: true })
-
-    await checkBuffers(input, imageDestJPG, false)
-  })
-
-  it('Should not skip processing if the source image does not have the appropriate size', async function () {
-    const input = buildAbsoluteFixturePath('custom-thumbnail-big.jpg')
-    await processImage({ path: input, destination: imageDestJPG, newSize: thumbnailSize, keepOriginal: true })
-
-    await checkBuffers(input, imageDestJPG, false)
-  })
-
-  it('Should strip exif for a jpg file that can not be copied', async function () {
-    const input = buildAbsoluteFixturePath('exif.jpg')
-    expect(await hasTitleExif(input)).to.be.true
-
-    await processImage({ path: input, destination: imageDestJPG, newSize: { width: 100, height: 100 }, keepOriginal: true })
-    await checkBuffers(input, imageDestJPG, false)
-
-    expect(await hasTitleExif(imageDestJPG)).to.be.false
-  })
-
-  it('Should strip exif for a jpg file that could be copied', async function () {
-    const input = buildAbsoluteFixturePath('exif.jpg')
-    expect(await hasTitleExif(input)).to.be.true
-
-    await processImage({ path: input, destination: imageDestJPG, newSize: thumbnailSize, keepOriginal: true })
-    await checkBuffers(input, imageDestJPG, false)
-
-    expect(await hasTitleExif(imageDestJPG)).to.be.false
-  })
-
-  it('Should strip exif for png', async function () {
-    const input = buildAbsoluteFixturePath('exif.png')
-    expect(await hasTitleExif(input)).to.be.true
-
-    await processImage({ path: input, destination: imageDestPNG, newSize: thumbnailSize, keepOriginal: true })
-    expect(await hasTitleExif(imageDestPNG)).to.be.false
-  })
-
-  after(async function () {
-    await remove(imageDestDir)
-  })
-})