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, 80 insertions, 0 deletions

diff --git a/packages/tests/src/plugins/translations.ts b/packages/tests/src/plugins/translations.ts
new file mode 100644
index 000000000..a69e14134
--- /dev/null
+++ b/packages/tests/src/plugins/translations.ts
@@ -0,0 +1,80 @@
+/* eslint-disable @typescript-eslint/no-unused-expressions,@typescript-eslint/require-await */
+
+import { expect } from 'chai'
+import {
+  cleanupTests,
+  createSingleServer,
+  PeerTubeServer,
+  PluginsCommand,
+  setAccessTokensToServers
+} from '@peertube/peertube-server-commands'
+
+describe('Test plugin translations', function () {
+  let server: PeerTubeServer
+  let command: PluginsCommand
+
+  before(async function () {
+    this.timeout(30000)
+
+    server = await createSingleServer(1)
+    await setAccessTokensToServers([ server ])
+
+    command = server.plugins
+
+    await command.install({ path: PluginsCommand.getPluginTestPath() })
+    await command.install({ path: PluginsCommand.getPluginTestPath('-filter-translations') })
+  })
+
+  it('Should not have translations for locale pt', async function () {
+    const body = await command.getTranslations({ locale: 'pt' })
+
+    expect(body).to.deep.equal({})
+  })
+
+  it('Should have translations for locale fr', async function () {
+    const body = await command.getTranslations({ locale: 'fr-FR' })
+
+    expect(body).to.deep.equal({
+      'peertube-plugin-test': {
+        Hi: 'Coucou'
+      },
+      'peertube-plugin-test-filter-translations': {
+        'Hello world': 'Bonjour le monde'
+      }
+    })
+  })
+
+  it('Should have translations of locale it', async function () {
+    const body = await command.getTranslations({ locale: 'it-IT' })
+
+    expect(body).to.deep.equal({
+      'peertube-plugin-test-filter-translations': {
+        'Hello world': 'Ciao, mondo!'
+      }
+    })
+  })
+
+  it('Should remove the plugin and remove the locales', async function () {
+    await command.uninstall({ npmName: 'peertube-plugin-test-filter-translations' })
+
+    {
+      const body = await command.getTranslations({ locale: 'fr-FR' })
+
+      expect(body).to.deep.equal({
+        'peertube-plugin-test': {
+          Hi: 'Coucou'
+        }
+      })
+    }
+
+    {
+      const body = await command.getTranslations({ locale: 'it-IT' })
+
+      expect(body).to.deep.equal({})
+    }
+  })
+
+  after(async function () {
+    await cleanupTests([ server ])
+  })
+})