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, 29 deletions

diff --git a/server/helpers/dns.ts b/server/helpers/dns.ts
deleted file mode 100644
index da8b666c2..000000000
--- a/server/helpers/dns.ts
+++ /dev/null
@@ -1,29 +0,0 @@
-import { lookup } from 'dns'
-import { parse as parseIP } from 'ipaddr.js'
-
-function dnsLookupAll (hostname: string) {
-  return new Promise<string[]>((res, rej) => {
-    lookup(hostname, { family: 0, all: true }, (err, adresses) => {
-      if (err) return rej(err)
-
-      return res(adresses.map(a => a.address))
-    })
-  })
-}
-
-async function isResolvingToUnicastOnly (hostname: string) {
-  const addresses = await dnsLookupAll(hostname)
-
-  for (const address of addresses) {
-    const parsed = parseIP(address)
-
-    if (parsed.range() !== 'unicast') return false
-  }
-
-  return true
-}
-
-export {
-  dnsLookupAll,
-  isResolvingToUnicastOnly
-}