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, 85 insertions, 0 deletions

diff --git a/packages/tests/fixtures/peertube-plugin-test-external-auth-one/main.js b/packages/tests/fixtures/peertube-plugin-test-external-auth-one/main.js
new file mode 100644
index 000000000..58bc27661
--- /dev/null
+++ b/packages/tests/fixtures/peertube-plugin-test-external-auth-one/main.js
@@ -0,0 +1,85 @@
+async function register ({
+  registerExternalAuth,
+  peertubeHelpers,
+  settingsManager,
+  unregisterExternalAuth
+}) {
+  {
+    const result = registerExternalAuth({
+      authName: 'external-auth-1',
+      authDisplayName: () => 'External Auth 1',
+      onLogout: user => peertubeHelpers.logger.info('On logout %s', user.username),
+      onAuthRequest: (req, res) => {
+        const username = req.query.username
+
+        result.userAuthenticated({
+          req,
+          res,
+          username,
+          email: username + '@example.com'
+        })
+      }
+    })
+  }
+
+  {
+    const result = registerExternalAuth({
+      authName: 'external-auth-2',
+      authDisplayName: () => 'External Auth 2',
+      onAuthRequest: (req, res) => {
+        result.userAuthenticated({
+          req,
+          res,
+          username: 'kefka',
+          email: 'kefka@example.com',
+          role: 0,
+          displayName: 'Kefka Palazzo',
+          adminFlags: 1,
+          videoQuota: 42000,
+          videoQuotaDaily: 42100,
+
+          // Always use new value except for videoQuotaDaily field
+          userUpdater: ({ fieldName, currentValue, newValue }) => {
+            if (fieldName === 'videoQuotaDaily') return currentValue
+
+            return newValue
+          }
+        })
+      },
+      hookTokenValidity: (options) => {
+        if (options.type === 'refresh') {
+          return { valid: false }
+        }
+
+        if (options.type === 'access') {
+          const token = options.token
+          const now = new Date()
+          now.setTime(now.getTime() - 5000)
+
+          const createdAt = new Date(token.createdAt)
+
+          return { valid: createdAt.getTime() >= now.getTime() }
+        }
+
+        return { valid: true }
+      }
+    })
+  }
+
+  settingsManager.onSettingsChange(settings => {
+    if (settings.disableKefka) {
+      unregisterExternalAuth('external-auth-2')
+    }
+  })
+}
+
+async function unregister () {
+  return
+}
+
+module.exports = {
+  register,
+  unregister
+}
+
+// ###########################################################################