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, 208 deletions

diff --git a/server/models/video/thumbnail.ts b/server/models/video/thumbnail.ts
deleted file mode 100644
index 1722acdb4..000000000
--- a/server/models/video/thumbnail.ts
+++ /dev/null
@@ -1,208 +0,0 @@
-import { remove } from 'fs-extra'
-import { join } from 'path'
-import {
-  AfterDestroy,
-  AllowNull,
-  BeforeCreate,
-  BeforeUpdate,
-  BelongsTo,
-  Column,
-  CreatedAt,
-  DataType,
-  Default,
-  ForeignKey,
-  Model,
-  Table,
-  UpdatedAt
-} from 'sequelize-typescript'
-import { afterCommitIfTransaction } from '@server/helpers/database-utils'
-import { MThumbnail, MThumbnailVideo, MVideo } from '@server/types/models'
-import { AttributesOnly } from '@shared/typescript-utils'
-import { ThumbnailType } from '../../../shared/models/videos/thumbnail.type'
-import { logger } from '../../helpers/logger'
-import { CONFIG } from '../../initializers/config'
-import { CONSTRAINTS_FIELDS, LAZY_STATIC_PATHS, WEBSERVER } from '../../initializers/constants'
-import { VideoModel } from './video'
-import { VideoPlaylistModel } from './video-playlist'
-
-@Table({
-  tableName: 'thumbnail',
-  indexes: [
-    {
-      fields: [ 'videoId' ]
-    },
-    {
-      fields: [ 'videoPlaylistId' ],
-      unique: true
-    },
-    {
-      fields: [ 'filename', 'type' ],
-      unique: true
-    }
-  ]
-})
-export class ThumbnailModel extends Model<Partial<AttributesOnly<ThumbnailModel>>> {
-
-  @AllowNull(false)
-  @Column
-  filename: string
-
-  @AllowNull(true)
-  @Default(null)
-  @Column
-  height: number
-
-  @AllowNull(true)
-  @Default(null)
-  @Column
-  width: number
-
-  @AllowNull(false)
-  @Column
-  type: ThumbnailType
-
-  @AllowNull(true)
-  @Column(DataType.STRING(CONSTRAINTS_FIELDS.COMMONS.URL.max))
-  fileUrl: string
-
-  @AllowNull(true)
-  @Column
-  automaticallyGenerated: boolean
-
-  @AllowNull(false)
-  @Column
-  onDisk: boolean
-
-  @ForeignKey(() => VideoModel)
-  @Column
-  videoId: number
-
-  @BelongsTo(() => VideoModel, {
-    foreignKey: {
-      allowNull: true
-    },
-    onDelete: 'CASCADE'
-  })
-  Video: VideoModel
-
-  @ForeignKey(() => VideoPlaylistModel)
-  @Column
-  videoPlaylistId: number
-
-  @BelongsTo(() => VideoPlaylistModel, {
-    foreignKey: {
-      allowNull: true
-    },
-    onDelete: 'CASCADE'
-  })
-  VideoPlaylist: VideoPlaylistModel
-
-  @CreatedAt
-  createdAt: Date
-
-  @UpdatedAt
-  updatedAt: Date
-
-  // If this thumbnail replaced existing one, track the old name
-  previousThumbnailFilename: string
-
-  private static readonly types: { [ id in ThumbnailType ]: { label: string, directory: string, staticPath: string } } = {
-    [ThumbnailType.MINIATURE]: {
-      label: 'miniature',
-      directory: CONFIG.STORAGE.THUMBNAILS_DIR,
-      staticPath: LAZY_STATIC_PATHS.THUMBNAILS
-    },
-    [ThumbnailType.PREVIEW]: {
-      label: 'preview',
-      directory: CONFIG.STORAGE.PREVIEWS_DIR,
-      staticPath: LAZY_STATIC_PATHS.PREVIEWS
-    }
-  }
-
-  @BeforeCreate
-  @BeforeUpdate
-  static removeOldFile (instance: ThumbnailModel, options) {
-    return afterCommitIfTransaction(options.transaction, () => instance.removePreviousFilenameIfNeeded())
-  }
-
-  @AfterDestroy
-  static removeFiles (instance: ThumbnailModel) {
-    logger.info('Removing %s file %s.', ThumbnailModel.types[instance.type].label, instance.filename)
-
-    // Don't block the transaction
-    instance.removeThumbnail()
-            .catch(err => logger.error('Cannot remove thumbnail file %s.', instance.filename, { err }))
-  }
-
-  static loadByFilename (filename: string, thumbnailType: ThumbnailType): Promise<MThumbnail> {
-    const query = {
-      where: {
-        filename,
-        type: thumbnailType
-      }
-    }
-
-    return ThumbnailModel.findOne(query)
-  }
-
-  static loadWithVideoByFilename (filename: string, thumbnailType: ThumbnailType): Promise<MThumbnailVideo> {
-    const query = {
-      where: {
-        filename,
-        type: thumbnailType
-      },
-      include: [
-        {
-          model: VideoModel.unscoped(),
-          required: true
-        }
-      ]
-    }
-
-    return ThumbnailModel.findOne(query)
-  }
-
-  static buildPath (type: ThumbnailType, filename: string) {
-    const directory = ThumbnailModel.types[type].directory
-
-    return join(directory, filename)
-  }
-
-  getOriginFileUrl (video: MVideo) {
-    const staticPath = ThumbnailModel.types[this.type].staticPath + this.filename
-
-    if (video.isOwned()) return WEBSERVER.URL + staticPath
-
-    return this.fileUrl
-  }
-
-  getLocalStaticPath () {
-    return ThumbnailModel.types[this.type].staticPath + this.filename
-  }
-
-  getPath () {
-    return ThumbnailModel.buildPath(this.type, this.filename)
-  }
-
-  getPreviousPath () {
-    return ThumbnailModel.buildPath(this.type, this.previousThumbnailFilename)
-  }
-
-  removeThumbnail () {
-    return remove(this.getPath())
-  }
-
-  removePreviousFilenameIfNeeded () {
-    if (!this.previousThumbnailFilename) return
-
-    const previousPath = this.getPreviousPath()
-    remove(previousPath)
-      .catch(err => logger.error('Cannot remove previous thumbnail file %s.', previousPath, { err }))
-
-    this.previousThumbnailFilename = undefined
-  }
-
-  isOwned () {
-    return !this.fileUrl
-  }
-}