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, 123 deletions

diff --git a/server/helpers/custom-validators/users.ts b/server/helpers/custom-validators/users.ts
deleted file mode 100644
index f02b3ba65..000000000
--- a/server/helpers/custom-validators/users.ts
+++ /dev/null
@@ -1,123 +0,0 @@
-import validator from 'validator'
-import { UserRole } from '@shared/models'
-import { isEmailEnabled } from '../../initializers/config'
-import { CONSTRAINTS_FIELDS, NSFW_POLICY_TYPES } from '../../initializers/constants'
-import { exists, isArray, isBooleanValid } from './misc'
-
-const USERS_CONSTRAINTS_FIELDS = CONSTRAINTS_FIELDS.USERS
-
-function isUserPasswordValid (value: string) {
-  return validator.isLength(value, USERS_CONSTRAINTS_FIELDS.PASSWORD)
-}
-
-function isUserPasswordValidOrEmpty (value: string) {
-  // Empty password is only possible if emailing is enabled.
-  if (value === '') return isEmailEnabled()
-
-  return isUserPasswordValid(value)
-}
-
-function isUserVideoQuotaValid (value: string) {
-  return exists(value) && validator.isInt(value + '', USERS_CONSTRAINTS_FIELDS.VIDEO_QUOTA)
-}
-
-function isUserVideoQuotaDailyValid (value: string) {
-  return exists(value) && validator.isInt(value + '', USERS_CONSTRAINTS_FIELDS.VIDEO_QUOTA_DAILY)
-}
-
-function isUserUsernameValid (value: string) {
-  return exists(value) &&
-    validator.matches(value, new RegExp(`^[a-z0-9_]+([a-z0-9_.-]+[a-z0-9_]+)?$`)) &&
-    validator.isLength(value, USERS_CONSTRAINTS_FIELDS.USERNAME)
-}
-
-function isUserDisplayNameValid (value: string) {
-  return value === null || (exists(value) && validator.isLength(value, CONSTRAINTS_FIELDS.USERS.NAME))
-}
-
-function isUserDescriptionValid (value: string) {
-  return value === null || (exists(value) && validator.isLength(value, CONSTRAINTS_FIELDS.USERS.DESCRIPTION))
-}
-
-function isUserEmailVerifiedValid (value: any) {
-  return isBooleanValid(value)
-}
-
-const nsfwPolicies = new Set(Object.values(NSFW_POLICY_TYPES))
-function isUserNSFWPolicyValid (value: any) {
-  return exists(value) && nsfwPolicies.has(value)
-}
-
-function isUserP2PEnabledValid (value: any) {
-  return isBooleanValid(value)
-}
-
-function isUserVideosHistoryEnabledValid (value: any) {
-  return isBooleanValid(value)
-}
-
-function isUserAutoPlayVideoValid (value: any) {
-  return isBooleanValid(value)
-}
-
-function isUserVideoLanguages (value: any) {
-  return value === null || (isArray(value) && value.length < CONSTRAINTS_FIELDS.USERS.VIDEO_LANGUAGES.max)
-}
-
-function isUserAdminFlagsValid (value: any) {
-  return exists(value) && validator.isInt('' + value)
-}
-
-function isUserBlockedValid (value: any) {
-  return isBooleanValid(value)
-}
-
-function isUserAutoPlayNextVideoValid (value: any) {
-  return isBooleanValid(value)
-}
-
-function isUserAutoPlayNextVideoPlaylistValid (value: any) {
-  return isBooleanValid(value)
-}
-
-function isUserEmailPublicValid (value: any) {
-  return isBooleanValid(value)
-}
-
-function isUserNoModal (value: any) {
-  return isBooleanValid(value)
-}
-
-function isUserBlockedReasonValid (value: any) {
-  return value === null || (exists(value) && validator.isLength(value, CONSTRAINTS_FIELDS.USERS.BLOCKED_REASON))
-}
-
-function isUserRoleValid (value: any) {
-  return exists(value) && validator.isInt('' + value) && [ UserRole.ADMINISTRATOR, UserRole.MODERATOR, UserRole.USER ].includes(value)
-}
-
-// ---------------------------------------------------------------------------
-
-export {
-  isUserVideosHistoryEnabledValid,
-  isUserBlockedValid,
-  isUserPasswordValid,
-  isUserPasswordValidOrEmpty,
-  isUserVideoLanguages,
-  isUserBlockedReasonValid,
-  isUserRoleValid,
-  isUserVideoQuotaValid,
-  isUserVideoQuotaDailyValid,
-  isUserUsernameValid,
-  isUserAdminFlagsValid,
-  isUserEmailVerifiedValid,
-  isUserNSFWPolicyValid,
-  isUserP2PEnabledValid,
-  isUserAutoPlayVideoValid,
-  isUserAutoPlayNextVideoValid,
-  isUserAutoPlayNextVideoPlaylistValid,
-  isUserDisplayNameValid,
-  isUserDescriptionValid,
-  isUserEmailPublicValid,
-  isUserNoModal
-}