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, 86 deletions

diff --git a/shared/core-utils/common/object.ts b/shared/core-utils/common/object.ts
deleted file mode 100644
index 1276bfcc7..000000000
--- a/shared/core-utils/common/object.ts
+++ /dev/null
@@ -1,86 +0,0 @@
-function pick <O extends object, K extends keyof O> (object: O, keys: K[]): Pick<O, K> {
-  const result: any = {}
-
-  for (const key of keys) {
-    if (Object.prototype.hasOwnProperty.call(object, key)) {
-      result[key] = object[key]
-    }
-  }
-
-  return result
-}
-
-function omit <O extends object, K extends keyof O> (object: O, keys: K[]): Exclude<O, K> {
-  const result: any = {}
-  const keysSet = new Set(keys) as Set<string>
-
-  for (const [ key, value ] of Object.entries(object)) {
-    if (keysSet.has(key)) continue
-
-    result[key] = value
-  }
-
-  return result
-}
-
-function objectKeysTyped <O extends object, K extends keyof O> (object: O): K[] {
-  return (Object.keys(object) as K[])
-}
-
-function getKeys <O extends object, K extends keyof O> (object: O, keys: K[]): K[] {
-  return (Object.keys(object) as K[]).filter(k => keys.includes(k))
-}
-
-function hasKey <T extends object> (obj: T, k: keyof any): k is keyof T {
-  return k in obj
-}
-
-function sortObjectComparator (key: string, order: 'asc' | 'desc') {
-  return (a: any, b: any) => {
-    if (a[key] < b[key]) {
-      return order === 'asc' ? -1 : 1
-    }
-
-    if (a[key] > b[key]) {
-      return order === 'asc' ? 1 : -1
-    }
-
-    return 0
-  }
-}
-
-function shallowCopy <T> (o: T): T {
-  return Object.assign(Object.create(Object.getPrototypeOf(o)), o)
-}
-
-function simpleObjectsDeepEqual (a: any, b: any) {
-  if (a === b) return true
-
-  if (typeof a !== 'object' || typeof b !== 'object' || a === null || b === null) {
-    return false
-  }
-
-  const keysA = Object.keys(a)
-  const keysB = Object.keys(b)
-
-  if (keysA.length !== keysB.length) return false
-
-  for (const key of keysA) {
-    if (!keysB.includes(key)) return false
-
-    if (!simpleObjectsDeepEqual(a[key], b[key])) return false
-  }
-
-  return true
-}
-
-export {
-  pick,
-  omit,
-  objectKeysTyped,
-  getKeys,
-  hasKey,
-  shallowCopy,
-  sortObjectComparator,
-  simpleObjectsDeepEqual
-}