server/initializers/config.ts

   1 import bytes from 'bytes'
   2 import { IConfig } from 'config'
   3 import { dirname, join } from 'path'
   4 import { decacheModule } from '@server/helpers/decache'
   5 import { VideoRedundancyConfigFilter } from '@shared/models/redundancy/video-redundancy-config-filter.type'
   6 import { BroadcastMessageLevel } from '@shared/models/server'
   7 import { VideoPrivacy, VideosRedundancyStrategy } from '../../shared/models'
   8 import { NSFWPolicyType } from '../../shared/models/videos/nsfw-policy.type'
   9 import { buildPath, root } from '../../shared/core-utils'
  10 import { parseBytes, parseDurationToMs } from '../helpers/core-utils'
  11
  12 // Use a variable to reload the configuration if we need
  13 let config: IConfig = require('config')
  14
  15 const configChangedHandlers: Function[] = []
  16
  17 const CONFIG = {
  18   CUSTOM_FILE: getLocalConfigFilePath(),
  19   LISTEN: {
  20     PORT: config.get<number>('listen.port'),
  21     HOSTNAME: config.get<string>('listen.hostname')
  22   },
  23   DATABASE: {
  24     DBNAME: config.has('database.name') ? config.get<string>('database.name') : 'peertube' + config.get<string>('database.suffix'),
  25     HOSTNAME: config.get<string>('database.hostname'),
  26     PORT: config.get<number>('database.port'),
  27     SSL: config.get<boolean>('database.ssl'),
  28     USERNAME: config.get<string>('database.username'),
  29     PASSWORD: config.get<string>('database.password'),
  30     POOL: {
  31       MAX: config.get<number>('database.pool.max')
  32     }
  33   },
  34   REDIS: {
  35     HOSTNAME: config.has('redis.hostname') ? config.get<string>('redis.hostname') : null,
  36     PORT: config.has('redis.port') ? config.get<number>('redis.port') : null,
  37     SOCKET: config.has('redis.socket') ? config.get<string>('redis.socket') : null,
  38     AUTH: config.has('redis.auth') ? config.get<string>('redis.auth') : null,
  39     DB: config.has('redis.db') ? config.get<number>('redis.db') : null
  40   },
  41   SMTP: {
  42     TRANSPORT: config.has('smtp.transport') ? config.get<string>('smtp.transport') : 'smtp',
  43     SENDMAIL: config.has('smtp.sendmail') ? config.get<string>('smtp.sendmail') : null,
  44     HOSTNAME: config.get<string>('smtp.hostname'),
  45     PORT: config.get<number>('smtp.port'),
  46     USERNAME: config.get<string>('smtp.username'),
  47     PASSWORD: config.get<string>('smtp.password'),
  48     TLS: config.get<boolean>('smtp.tls'),
  49     DISABLE_STARTTLS: config.get<boolean>('smtp.disable_starttls'),
  50     CA_FILE: config.get<string>('smtp.ca_file'),
  51     FROM_ADDRESS: config.get<string>('smtp.from_address')
  52   },
  53   EMAIL: {
  54     BODY: {
  55       SIGNATURE: config.get<string>('email.body.signature')
  56     },
  57     SUBJECT: {
  58       PREFIX: config.get<string>('email.subject.prefix') + ' '
  59     }
  60   },
  61
  62   CLIENT: {
  63     VIDEOS: {
  64       MINIATURE: {
  65         get PREFER_AUTHOR_DISPLAY_NAME () { return config.get<boolean>('client.videos.miniature.prefer_author_display_name') }
  66       }
  67     },
  68     MENU: {
  69       LOGIN: {
  70         get REDIRECT_ON_SINGLE_EXTERNAL_AUTH () { return config.get<boolean>('client.menu.login.redirect_on_single_external_auth') }
  71       }
  72     }
  73   },
  74
  75   DEFAULTS: {
  76     PUBLISH: {
  77       DOWNLOAD_ENABLED: config.get<boolean>('defaults.publish.download_enabled'),
  78       COMMENTS_ENABLED: config.get<boolean>('defaults.publish.comments_enabled'),
  79       PRIVACY: config.get<VideoPrivacy>('defaults.publish.privacy'),
  80       LICENCE: config.get<number>('defaults.publish.licence')
  81     },
  82     P2P: {
  83       WEBAPP: {
  84         ENABLED: config.get<boolean>('defaults.p2p.webapp.enabled')
  85       },
  86       EMBED: {
  87         ENABLED: config.get<boolean>('defaults.p2p.embed.enabled')
  88       }
  89     }
  90   },
  91
  92   STORAGE: {
  93     TMP_DIR: buildPath(config.get<string>('storage.tmp')),
  94     BIN_DIR: buildPath(config.get<string>('storage.bin')),
  95     ACTOR_IMAGES: buildPath(config.get<string>('storage.avatars')),
  96     LOG_DIR: buildPath(config.get<string>('storage.logs')),
  97     VIDEOS_DIR: buildPath(config.get<string>('storage.videos')),
  98     STREAMING_PLAYLISTS_DIR: buildPath(config.get<string>('storage.streaming_playlists')),
  99     REDUNDANCY_DIR: buildPath(config.get<string>('storage.redundancy')),
 100     THUMBNAILS_DIR: buildPath(config.get<string>('storage.thumbnails')),
 101     PREVIEWS_DIR: buildPath(config.get<string>('storage.previews')),
 102     CAPTIONS_DIR: buildPath(config.get<string>('storage.captions')),
 103     TORRENTS_DIR: buildPath(config.get<string>('storage.torrents')),
 104     CACHE_DIR: buildPath(config.get<string>('storage.cache')),
 105     PLUGINS_DIR: buildPath(config.get<string>('storage.plugins')),
 106     CLIENT_OVERRIDES_DIR: buildPath(config.get<string>('storage.client_overrides'))
 107   },
 108   OBJECT_STORAGE: {
 109     ENABLED: config.get<boolean>('object_storage.enabled'),
 110     MAX_UPLOAD_PART: bytes.parse(config.get<string>('object_storage.max_upload_part')),
 111     ENDPOINT: config.get<string>('object_storage.endpoint'),
 112     REGION: config.get<string>('object_storage.region'),
 113     CREDENTIALS: {
 114       ACCESS_KEY_ID: config.get<string>('object_storage.credentials.access_key_id'),
 115       SECRET_ACCESS_KEY: config.get<string>('object_storage.credentials.secret_access_key')
 116     },
 117     VIDEOS: {
 118       BUCKET_NAME: config.get<string>('object_storage.videos.bucket_name'),
 119       PREFIX: config.get<string>('object_storage.videos.prefix'),
 120       BASE_URL: config.get<string>('object_storage.videos.base_url')
 121     },
 122     STREAMING_PLAYLISTS: {
 123       BUCKET_NAME: config.get<string>('object_storage.streaming_playlists.bucket_name'),
 124       PREFIX: config.get<string>('object_storage.streaming_playlists.prefix'),
 125       BASE_URL: config.get<string>('object_storage.streaming_playlists.base_url')
 126     }
 127   },
 128   WEBSERVER: {
 129     SCHEME: config.get<boolean>('webserver.https') === true ? 'https' : 'http',
 130     WS: config.get<boolean>('webserver.https') === true ? 'wss' : 'ws',
 131     HOSTNAME: config.get<string>('webserver.hostname'),
 132     PORT: config.get<number>('webserver.port')
 133   },
 134   RATES_LIMIT: {
 135     API: {
 136       WINDOW_MS: parseDurationToMs(config.get<string>('rates_limit.api.window')),
 137       MAX: config.get<number>('rates_limit.api.max')
 138     },
 139     SIGNUP: {
 140       WINDOW_MS: parseDurationToMs(config.get<string>('rates_limit.signup.window')),
 141       MAX: config.get<number>('rates_limit.signup.max')
 142     },
 143     LOGIN: {
 144       WINDOW_MS: parseDurationToMs(config.get<string>('rates_limit.login.window')),
 145       MAX: config.get<number>('rates_limit.login.max')
 146     },
 147     ASK_SEND_EMAIL: {
 148       WINDOW_MS: parseDurationToMs(config.get<string>('rates_limit.ask_send_email.window')),
 149       MAX: config.get<number>('rates_limit.ask_send_email.max')
 150     }
 151   },
 152   TRUST_PROXY: config.get<string[]>('trust_proxy'),
 153   LOG: {
 154     LEVEL: config.get<string>('log.level'),
 155     ROTATION: {
 156       ENABLED: config.get<boolean>('log.rotation.enabled'),
 157       MAX_FILE_SIZE: bytes.parse(config.get<string>('log.rotation.max_file_size')),
 158       MAX_FILES: config.get<number>('log.rotation.max_files')
 159     },
 160     ANONYMIZE_IP: config.get<boolean>('log.anonymize_ip'),
 161     LOG_PING_REQUESTS: config.get<boolean>('log.log_ping_requests'),
 162     PRETTIFY_SQL: config.get<boolean>('log.prettify_sql')
 163   },
 164   TRENDING: {
 165     VIDEOS: {
 166       INTERVAL_DAYS: config.get<number>('trending.videos.interval_days'),
 167       ALGORITHMS: {
 168         get ENABLED () { return config.get<string[]>('trending.videos.algorithms.enabled') },
 169         get DEFAULT () { return config.get<string>('trending.videos.algorithms.default') }
 170       }
 171     }
 172   },
 173   REDUNDANCY: {
 174     VIDEOS: {
 175       CHECK_INTERVAL: parseDurationToMs(config.get<string>('redundancy.videos.check_interval')),
 176       STRATEGIES: buildVideosRedundancy(config.get<any[]>('redundancy.videos.strategies'))
 177     }
 178   },
 179   REMOTE_REDUNDANCY: {
 180     VIDEOS: {
 181       ACCEPT_FROM: config.get<VideoRedundancyConfigFilter>('remote_redundancy.videos.accept_from')
 182     }
 183   },
 184   CSP: {
 185     ENABLED: config.get<boolean>('csp.enabled'),
 186     REPORT_ONLY: config.get<boolean>('csp.report_only'),
 187     REPORT_URI: config.get<string>('csp.report_uri')
 188   },
 189   SECURITY: {
 190     FRAMEGUARD: {
 191       ENABLED: config.get<boolean>('security.frameguard.enabled')
 192     }
 193   },
 194   TRACKER: {
 195     ENABLED: config.get<boolean>('tracker.enabled'),
 196     PRIVATE: config.get<boolean>('tracker.private'),
 197     REJECT_TOO_MANY_ANNOUNCES: config.get<boolean>('tracker.reject_too_many_announces')
 198   },
 199   HISTORY: {
 200     VIDEOS: {
 201       MAX_AGE: parseDurationToMs(config.get('history.videos.max_age'))
 202     }
 203   },
 204   VIEWS: {
 205     VIDEOS: {
 206       REMOTE: {
 207         MAX_AGE: parseDurationToMs(config.get('views.videos.remote.max_age'))
 208       },
 209       LOCAL_BUFFER_UPDATE_INTERVAL: parseDurationToMs(config.get('views.videos.local_buffer_update_interval')),
 210       IP_VIEW_EXPIRATION: parseDurationToMs(config.get('views.videos.ip_view_expiration'))
 211     }
 212   },
 213   PLUGINS: {
 214     INDEX: {
 215       ENABLED: config.get<boolean>('plugins.index.enabled'),
 216       CHECK_LATEST_VERSIONS_INTERVAL: parseDurationToMs(config.get<string>('plugins.index.check_latest_versions_interval')),
 217       URL: config.get<string>('plugins.index.url')
 218     }
 219   },
 220   FEDERATION: {
 221     VIDEOS: {
 222       FEDERATE_UNLISTED: config.get<boolean>('federation.videos.federate_unlisted'),
 223       CLEANUP_REMOTE_INTERACTIONS: config.get<boolean>('federation.videos.cleanup_remote_interactions')
 224     }
 225   },
 226   PEERTUBE: {
 227     CHECK_LATEST_VERSION: {
 228       ENABLED: config.get<boolean>('peertube.check_latest_version.enabled'),
 229       URL: config.get<string>('peertube.check_latest_version.url')
 230     }
 231   },
 232   WEBADMIN: {
 233     CONFIGURATION: {
 234       EDITION: {
 235         ALLOWED: config.get<boolean>('webadmin.configuration.edition.allowed')
 236       }
 237     }
 238   },
 239   ADMIN: {
 240     get EMAIL () { return config.get<string>('admin.email') }
 241   },
 242   CONTACT_FORM: {
 243     get ENABLED () { return config.get<boolean>('contact_form.enabled') }
 244   },
 245   SIGNUP: {
 246     get ENABLED () { return config.get<boolean>('signup.enabled') },
 247     get LIMIT () { return config.get<number>('signup.limit') },
 248     get REQUIRES_EMAIL_VERIFICATION () { return config.get<boolean>('signup.requires_email_verification') },
 249     get MINIMUM_AGE () { return config.get<number>('signup.minimum_age') },
 250     FILTERS: {
 251       CIDR: {
 252         get WHITELIST () { return config.get<string[]>('signup.filters.cidr.whitelist') },
 253         get BLACKLIST () { return config.get<string[]>('signup.filters.cidr.blacklist') }
 254       }
 255     }
 256   },
 257   USER: {
 258     get VIDEO_QUOTA () { return parseBytes(config.get<number>('user.video_quota')) },
 259     get VIDEO_QUOTA_DAILY () { return parseBytes(config.get<number>('user.video_quota_daily')) }
 260   },
 261   VIDEO_CHANNELS: {
 262     get MAX_PER_USER () { return config.get<number>('video_channels.max_per_user') }
 263   },
 264   TRANSCODING: {
 265     get ENABLED () { return config.get<boolean>('transcoding.enabled') },
 266     get ALLOW_ADDITIONAL_EXTENSIONS () { return config.get<boolean>('transcoding.allow_additional_extensions') },
 267     get ALLOW_AUDIO_FILES () { return config.get<boolean>('transcoding.allow_audio_files') },
 268     get THREADS () { return config.get<number>('transcoding.threads') },
 269     get CONCURRENCY () { return config.get<number>('transcoding.concurrency') },
 270     get PROFILE () { return config.get<string>('transcoding.profile') },
 271     RESOLUTIONS: {
 272       get '0p' () { return config.get<boolean>('transcoding.resolutions.0p') },
 273       get '144p' () { return config.get<boolean>('transcoding.resolutions.144p') },
 274       get '240p' () { return config.get<boolean>('transcoding.resolutions.240p') },
 275       get '360p' () { return config.get<boolean>('transcoding.resolutions.360p') },
 276       get '480p' () { return config.get<boolean>('transcoding.resolutions.480p') },
 277       get '720p' () { return config.get<boolean>('transcoding.resolutions.720p') },
 278       get '1080p' () { return config.get<boolean>('transcoding.resolutions.1080p') },
 279       get '1440p' () { return config.get<boolean>('transcoding.resolutions.1440p') },
 280       get '2160p' () { return config.get<boolean>('transcoding.resolutions.2160p') }
 281     },
 282     HLS: {
 283       get ENABLED () { return config.get<boolean>('transcoding.hls.enabled') }
 284     },
 285     WEBTORRENT: {
 286       get ENABLED () { return config.get<boolean>('transcoding.webtorrent.enabled') }
 287     }
 288   },
 289   LIVE: {
 290     get ENABLED () { return config.get<boolean>('live.enabled') },
 291
 292     get MAX_DURATION () { return parseDurationToMs(config.get<string>('live.max_duration')) },
 293     get MAX_INSTANCE_LIVES () { return config.get<number>('live.max_instance_lives') },
 294     get MAX_USER_LIVES () { return config.get<number>('live.max_user_lives') },
 295
 296     get ALLOW_REPLAY () { return config.get<boolean>('live.allow_replay') },
 297
 298     RTMP: {
 299       get ENABLED () { return config.get<boolean>('live.rtmp.enabled') },
 300       get PORT () { return config.get<number>('live.rtmp.port') }
 301     },
 302
 303     RTMPS: {
 304       get ENABLED () { return config.get<boolean>('live.rtmps.enabled') },
 305       get PORT () { return config.get<number>('live.rtmps.port') },
 306       get KEY_FILE () { return config.get<string>('live.rtmps.key_file') },
 307       get CERT_FILE () { return config.get<string>('live.rtmps.cert_file') }
 308     },
 309
 310     TRANSCODING: {
 311       get ENABLED () { return config.get<boolean>('live.transcoding.enabled') },
 312       get THREADS () { return config.get<number>('live.transcoding.threads') },
 313       get PROFILE () { return config.get<string>('live.transcoding.profile') },
 314
 315       RESOLUTIONS: {
 316         get '144p' () { return config.get<boolean>('live.transcoding.resolutions.144p') },
 317         get '240p' () { return config.get<boolean>('live.transcoding.resolutions.240p') },
 318         get '360p' () { return config.get<boolean>('live.transcoding.resolutions.360p') },
 319         get '480p' () { return config.get<boolean>('live.transcoding.resolutions.480p') },
 320         get '720p' () { return config.get<boolean>('live.transcoding.resolutions.720p') },
 321         get '1080p' () { return config.get<boolean>('live.transcoding.resolutions.1080p') },
 322         get '1440p' () { return config.get<boolean>('live.transcoding.resolutions.1440p') },
 323         get '2160p' () { return config.get<boolean>('live.transcoding.resolutions.2160p') }
 324       }
 325     }
 326   },
 327   IMPORT: {
 328     VIDEOS: {
 329       get CONCURRENCY () { return config.get<number>('import.videos.concurrency') },
 330
 331       HTTP: {
 332         get ENABLED () { return config.get<boolean>('import.videos.http.enabled') },
 333
 334         YOUTUBE_DL_RELEASE: {
 335           get URL () { return config.get<string>('import.videos.http.youtube_dl_release.url') },
 336           get NAME () { return config.get<string>('import.videos.http.youtube_dl_release.name') }
 337         },
 338
 339         get FORCE_IPV4 () { return config.get<boolean>('import.videos.http.force_ipv4') }
 340       },
 341       TORRENT: {
 342         get ENABLED () { return config.get<boolean>('import.videos.torrent.enabled') }
 343       }
 344     }
 345   },
 346   AUTO_BLACKLIST: {
 347     VIDEOS: {
 348       OF_USERS: {
 349         get ENABLED () { return config.get<boolean>('auto_blacklist.videos.of_users.enabled') }
 350       }
 351     }
 352   },
 353   CACHE: {
 354     PREVIEWS: {
 355       get SIZE () { return config.get<number>('cache.previews.size') }
 356     },
 357     VIDEO_CAPTIONS: {
 358       get SIZE () { return config.get<number>('cache.captions.size') }
 359     },
 360     TORRENTS: {
 361       get SIZE () { return config.get<number>('cache.torrents.size') }
 362     }
 363   },
 364   INSTANCE: {
 365     get NAME () { return config.get<string>('instance.name') },
 366     get SHORT_DESCRIPTION () { return config.get<string>('instance.short_description') },
 367     get DESCRIPTION () { return config.get<string>('instance.description') },
 368     get TERMS () { return config.get<string>('instance.terms') },
 369     get CODE_OF_CONDUCT () { return config.get<string>('instance.code_of_conduct') },
 370
 371     get CREATION_REASON () { return config.get<string>('instance.creation_reason') },
 372
 373     get MODERATION_INFORMATION () { return config.get<string>('instance.moderation_information') },
 374     get ADMINISTRATOR () { return config.get<string>('instance.administrator') },
 375     get MAINTENANCE_LIFETIME () { return config.get<string>('instance.maintenance_lifetime') },
 376     get BUSINESS_MODEL () { return config.get<string>('instance.business_model') },
 377     get HARDWARE_INFORMATION () { return config.get<string>('instance.hardware_information') },
 378
 379     get LANGUAGES () { return config.get<string[]>('instance.languages') || [] },
 380     get CATEGORIES () { return config.get<number[]>('instance.categories') || [] },
 381
 382     get IS_NSFW () { return config.get<boolean>('instance.is_nsfw') },
 383     get DEFAULT_NSFW_POLICY () { return config.get<NSFWPolicyType>('instance.default_nsfw_policy') },
 384
 385     get DEFAULT_CLIENT_ROUTE () { return config.get<string>('instance.default_client_route') },
 386
 387     CUSTOMIZATIONS: {
 388       get JAVASCRIPT () { return config.get<string>('instance.customizations.javascript') },
 389       get CSS () { return config.get<string>('instance.customizations.css') }
 390     },
 391     get ROBOTS () { return config.get<string>('instance.robots') },
 392     get SECURITYTXT () { return config.get<string>('instance.securitytxt') },
 393     get SECURITYTXT_CONTACT () { return config.get<string>('admin.email') }
 394   },
 395   SERVICES: {
 396     TWITTER: {
 397       get USERNAME () { return config.get<string>('services.twitter.username') },
 398       get WHITELISTED () { return config.get<boolean>('services.twitter.whitelisted') }
 399     }
 400   },
 401   FOLLOWERS: {
 402     INSTANCE: {
 403       get ENABLED () { return config.get<boolean>('followers.instance.enabled') },
 404       get MANUAL_APPROVAL () { return config.get<boolean>('followers.instance.manual_approval') }
 405     }
 406   },
 407   FOLLOWINGS: {
 408     INSTANCE: {
 409       AUTO_FOLLOW_BACK: {
 410         get ENABLED () {
 411           return config.get<boolean>('followings.instance.auto_follow_back.enabled')
 412         }
 413       },
 414       AUTO_FOLLOW_INDEX: {
 415         get ENABLED () {
 416           return config.get<boolean>('followings.instance.auto_follow_index.enabled')
 417         },
 418         get INDEX_URL () {
 419           return config.get<string>('followings.instance.auto_follow_index.index_url')
 420         }
 421       }
 422     }
 423   },
 424   THEME: {
 425     get DEFAULT () { return config.get<string>('theme.default') }
 426   },
 427   BROADCAST_MESSAGE: {
 428     get ENABLED () { return config.get<boolean>('broadcast_message.enabled') },
 429     get MESSAGE () { return config.get<string>('broadcast_message.message') },
 430     get LEVEL () { return config.get<BroadcastMessageLevel>('broadcast_message.level') },
 431     get DISMISSABLE () { return config.get<boolean>('broadcast_message.dismissable') }
 432   },
 433   SEARCH: {
 434     REMOTE_URI: {
 435       get USERS () { return config.get<boolean>('search.remote_uri.users') },
 436       get ANONYMOUS () { return config.get<boolean>('search.remote_uri.anonymous') }
 437     },
 438     SEARCH_INDEX: {
 439       get ENABLED () { return config.get<boolean>('search.search_index.enabled') },
 440       get URL () { return config.get<string>('search.search_index.url') },
 441       get DISABLE_LOCAL_SEARCH () { return config.get<boolean>('search.search_index.disable_local_search') },
 442       get IS_DEFAULT_SEARCH () { return config.get<boolean>('search.search_index.is_default_search') }
 443     }
 444   }
 445 }
 446
 447 function registerConfigChangedHandler (fun: Function) {
 448   configChangedHandlers.push(fun)
 449 }
 450
 451 function isEmailEnabled () {
 452   if (CONFIG.SMTP.TRANSPORT === 'sendmail' && CONFIG.SMTP.SENDMAIL) return true
 453
 454   if (CONFIG.SMTP.TRANSPORT === 'smtp' && CONFIG.SMTP.HOSTNAME && CONFIG.SMTP.PORT) return true
 455
 456   return false
 457 }
 458
 459 // ---------------------------------------------------------------------------
 460
 461 export {
 462   CONFIG,
 463   registerConfigChangedHandler,
 464   isEmailEnabled
 465 }
 466
 467 // ---------------------------------------------------------------------------
 468
 469 function getLocalConfigFilePath () {
 470   const localConfigDir = getLocalConfigDir()
 471
 472   let filename = 'local'
 473   if (process.env.NODE_ENV) filename += `-${process.env.NODE_ENV}`
 474   if (process.env.NODE_APP_INSTANCE) filename += `-${process.env.NODE_APP_INSTANCE}`
 475
 476   return join(localConfigDir, filename + '.json')
 477 }
 478
 479 function getLocalConfigDir () {
 480   if (process.env.PEERTUBE_LOCAL_CONFIG) return process.env.PEERTUBE_LOCAL_CONFIG
 481
 482   const configSources = config.util.getConfigSources()
 483   if (configSources.length === 0) throw new Error('Invalid config source.')
 484
 485   return dirname(configSources[0].name)
 486 }
 487
 488 function buildVideosRedundancy (objs: any[]): VideosRedundancyStrategy[] {
 489   if (!objs) return []
 490
 491   if (!Array.isArray(objs)) return objs
 492
 493   return objs.map(obj => {
 494     return Object.assign({}, obj, {
 495       minLifetime: parseDurationToMs(obj.min_lifetime),
 496       size: bytes.parse(obj.size),
 497       minViews: obj.min_views
 498     })
 499   })
 500 }
 501
 502 export function reloadConfig () {
 503
 504   function getConfigDirectories () {
 505     if (process.env.NODE_CONFIG_DIR) {
 506       return process.env.NODE_CONFIG_DIR.split(':')
 507     }
 508
 509     return [ join(root(), 'config') ]
 510   }
 511
 512   function purge () {
 513     const directories = getConfigDirectories()
 514
 515     for (const fileName in require.cache) {
 516       if (directories.some((dir) => fileName.includes(dir)) === false) {
 517         continue
 518       }
 519
 520       delete require.cache[fileName]
 521     }
 522
 523     decacheModule('config')
 524   }
 525
 526   purge()
 527
 528   config = require('config')
 529
 530   for (const configChangedHandler of configChangedHandlers) {
 531     configChangedHandler()
 532   }
 533 }