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, 103 deletions

diff --git a/shared/server-commands/server/servers-command.ts b/shared/server-commands/server/servers-command.ts
deleted file mode 100644
index 54e586a18..000000000
--- a/shared/server-commands/server/servers-command.ts
+++ /dev/null
@@ -1,103 +0,0 @@
-import { exec } from 'child_process'
-import { copy, ensureDir, readFile, readdir, remove } from 'fs-extra'
-import { basename, join } from 'path'
-import { isGithubCI, root, wait } from '@shared/core-utils'
-import { getFileSize } from '@shared/extra-utils'
-import { HttpStatusCode } from '@shared/models'
-import { AbstractCommand, OverrideCommandOptions } from '../shared'
-
-export class ServersCommand extends AbstractCommand {
-
-  static flushTests (internalServerNumber: number) {
-    return new Promise<void>((res, rej) => {
-      const suffix = ` -- ${internalServerNumber}`
-
-      return exec('npm run clean:server:test' + suffix, (err, _stdout, stderr) => {
-        if (err || stderr) return rej(err || new Error(stderr))
-
-        return res()
-      })
-    })
-  }
-
-  ping (options: OverrideCommandOptions = {}) {
-    return this.getRequestBody({
-      ...options,
-
-      path: '/api/v1/ping',
-      implicitToken: false,
-      defaultExpectedStatus: HttpStatusCode.OK_200
-    })
-  }
-
-  cleanupTests () {
-    const promises: Promise<any>[] = []
-
-    const saveGithubLogsIfNeeded = async () => {
-      if (!isGithubCI()) return
-
-      await ensureDir('artifacts')
-
-      const origin = this.buildDirectory('logs/peertube.log')
-      const destname = `peertube-${this.server.internalServerNumber}.log`
-      console.log('Saving logs %s.', destname)
-
-      await copy(origin, join('artifacts', destname))
-    }
-
-    if (this.server.parallel) {
-      const promise = saveGithubLogsIfNeeded()
-                        .then(() => ServersCommand.flushTests(this.server.internalServerNumber))
-
-      promises.push(promise)
-    }
-
-    if (this.server.customConfigFile) {
-      promises.push(remove(this.server.customConfigFile))
-    }
-
-    return promises
-  }
-
-  async waitUntilLog (str: string, count = 1, strictCount = true) {
-    const logfile = this.buildDirectory('logs/peertube.log')
-
-    while (true) {
-      const buf = await readFile(logfile)
-
-      const matches = buf.toString().match(new RegExp(str, 'g'))
-      if (matches && matches.length === count) return
-      if (matches && strictCount === false && matches.length >= count) return
-
-      await wait(1000)
-    }
-  }
-
-  buildDirectory (directory: string) {
-    return join(root(), 'test' + this.server.internalServerNumber, directory)
-  }
-
-  async countFiles (directory: string) {
-    const files = await readdir(this.buildDirectory(directory))
-
-    return files.length
-  }
-
-  buildWebVideoFilePath (fileUrl: string) {
-    return this.buildDirectory(join('web-videos', basename(fileUrl)))
-  }
-
-  buildFragmentedFilePath (videoUUID: string, fileUrl: string) {
-    return this.buildDirectory(join('streaming-playlists', 'hls', videoUUID, basename(fileUrl)))
-  }
-
-  getLogContent () {
-    return readFile(this.buildDirectory('logs/peertube.log'))
-  }
-
-  async getServerFileSize (subPath: string) {
-    const path = this.server.servers.buildDirectory(subPath)
-
-    return getFileSize(path)
-  }
-}