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)

server/scripts/parse-log.ts

@@ -0,0 +1,161 @@
+import { program } from 'commander'
+import { createReadStream } from 'fs'
+import { readdir } from 'fs/promises'
+import { join } from 'path'
+import { stdin } from 'process'
+import { createInterface } from 'readline'
+import { format as sqlFormat } from 'sql-formatter'
+import { inspect } from 'util'
+import * as winston from 'winston'
+import { labelFormatter, mtimeSortFilesDesc } from '@server/helpers/logger.js'
+import { CONFIG } from '@server/initializers/config.js'
+
+program
+  .option('-l, --level [level]', 'Level log (debug/info/warn/error)')
+  .option('-f, --files [file...]', 'Files to parse. If not provided, the script will parse the latest log file from config)')
+  .option('-t, --tags [tags...]', 'Display only lines with these tags')
+  .option('-nt, --not-tags [tags...]', 'Donrt display lines containing these tags')
+  .parse(process.argv)
+
+const options = program.opts()
+
+const excludedKeys = {
+  level: true,
+  message: true,
+  splat: true,
+  timestamp: true,
+  tags: true,
+  label: true,
+  sql: true
+}
+function keysExcluder (key, value) {
+  return excludedKeys[key] === true ? undefined : value
+}
+
+const loggerFormat = winston.format.printf((info) => {
+  let additionalInfos = JSON.stringify(info, keysExcluder, 2)
+  if (additionalInfos === '{}') additionalInfos = ''
+  else additionalInfos = ' ' + additionalInfos
+
+  if (info.sql) {
+    if (CONFIG.LOG.PRETTIFY_SQL) {
+      additionalInfos += '\n' + sqlFormat(info.sql, {
+        language: 'sql',
+        tabWidth: 2
+      })
+    } else {
+      additionalInfos += ' - ' + info.sql
+    }
+  }
+
+  return `[${info.label}] ${toTimeFormat(info.timestamp)} ${info.level}: ${info.message}${additionalInfos}`
+})
+
+const logger = winston.createLogger({
+  transports: [
+    new winston.transports.Console({
+      level: options.level || 'debug',
+      stderrLevels: [],
+      format: winston.format.combine(
+        winston.format.splat(),
+        labelFormatter(),
+        winston.format.colorize(),
+        loggerFormat
+      )
+    })
+  ],
+  exitOnError: true
+})
+
+const logLevels = {
+  error: logger.error.bind(logger),
+  warn: logger.warn.bind(logger),
+  info: logger.info.bind(logger),
+  debug: logger.debug.bind(logger)
+}
+
+run()
+  .then(() => process.exit(0))
+  .catch(err => console.error(err))
+
+async function run () {
+  const files = await getFiles()
+
+  for (const file of files) {
+    if (file === 'peertube-audit.log') continue
+
+    await readFile(file)
+  }
+}
+
+function readFile (file: string) {
+  console.log('Opening %s.', file)
+
+  const stream = file === '-' ? stdin : createReadStream(file)
+
+  const rl = createInterface({
+    input: stream
+  })
+
+  return new Promise<void>(res => {
+    rl.on('line', line => {
+      try {
+        const log = JSON.parse(line)
+        if (options.tags && !containsTags(log.tags, options.tags)) {
+          return
+        }
+
+        if (options.notTags && containsTags(log.tags, options.notTags)) {
+          return
+        }
+
+        // Don't know why but loggerFormat does not remove splat key
+        Object.assign(log, { splat: undefined })
+
+        logLevels[log.level](log)
+      } catch (err) {
+        console.error('Cannot parse line.', inspect(line))
+        throw err
+      }
+    })
+
+    stream.once('end', () => res())
+  })
+}
+
+// Thanks: https://stackoverflow.com/a/37014317
+async function getNewestFile (files: string[], basePath: string) {
+  const sorted = await mtimeSortFilesDesc(files, basePath)
+
+  return (sorted.length > 0) ? sorted[0].file : ''
+}
+
+async function getFiles () {
+  if (options.files) return options.files
+
+  const logFiles = await readdir(CONFIG.STORAGE.LOG_DIR)
+
+  const filename = await getNewestFile(logFiles, CONFIG.STORAGE.LOG_DIR)
+  return [ join(CONFIG.STORAGE.LOG_DIR, filename) ]
+}
+
+function toTimeFormat (time: string) {
+  const timestamp = Date.parse(time)
+
+  if (isNaN(timestamp) === true) return 'Unknown date'
+
+  const d = new Date(timestamp)
+  return d.toLocaleString() + `.${d.getMilliseconds()}`
+}
+
+function containsTags (loggerTags: string[], optionsTags: string[]) {
+  if (!loggerTags) return false
+
+  for (const lt of loggerTags) {
+    for (const ot of optionsTags) {
+      if (lt === ot) return true
+    }
+  }
+
+  return false
+}