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external.ts — vite Source File

Architecture documentation for external.ts, a typescript file in the vite codebase. 13 imports, 3 dependents.

File typescript ViteCore ConfigEngine 13 imports 3 dependents 5 functions

Entity Profile

Dependency Diagram

graph LR
  b64390ad_e6bf_4b1e_f7f0_39d49791e7e0["external.ts"]
  dcff87b0_a8ea_57a2_3b29_a7b8f19986f3["resolve.ts"]
  b64390ad_e6bf_4b1e_f7f0_39d49791e7e0 --> dcff87b0_a8ea_57a2_3b29_a7b8f19986f3
  3b063797_1fb9_a959_f5c1_af0fc226ed57["InternalResolveOptions"]
  b64390ad_e6bf_4b1e_f7f0_39d49791e7e0 --> 3b063797_1fb9_a959_f5c1_af0fc226ed57
  310b19b4_2716_b45b_716d_edfca3064152["tryNodeResolve"]
  b64390ad_e6bf_4b1e_f7f0_39d49791e7e0 --> 310b19b4_2716_b45b_716d_edfca3064152
  031bc221_67a8_c579_f2bf_bb30a08beeb2["utils.ts"]
  b64390ad_e6bf_4b1e_f7f0_39d49791e7e0 --> 031bc221_67a8_c579_f2bf_bb30a08beeb2
  23a2e685_f919_9578_27ba_bde71c122058["createDebugger"]
  b64390ad_e6bf_4b1e_f7f0_39d49791e7e0 --> 23a2e685_f919_9578_27ba_bde71c122058
  cb293321_1174_554d_b5ce_f153b06a2fb4["getNpmPackageName"]
  b64390ad_e6bf_4b1e_f7f0_39d49791e7e0 --> cb293321_1174_554d_b5ce_f153b06a2fb4
  5d2580c9_3b65_7396_afe1_ab2aa13f8ed9["isBuiltin"]
  b64390ad_e6bf_4b1e_f7f0_39d49791e7e0 --> 5d2580c9_3b65_7396_afe1_ab2aa13f8ed9
  50ac7e51_9f94_e985_bfec_ae95273b23b0["isInNodeModules"]
  b64390ad_e6bf_4b1e_f7f0_39d49791e7e0 --> 50ac7e51_9f94_e985_bfec_ae95273b23b0
  0c33ff62_54e9_5c90_902b_b26728e71fca["environment.ts"]
  b64390ad_e6bf_4b1e_f7f0_39d49791e7e0 --> 0c33ff62_54e9_5c90_902b_b26728e71fca
  7e6f7c83_3515_4e0d_5362_4eb9515b4a86["Environment"]
  b64390ad_e6bf_4b1e_f7f0_39d49791e7e0 --> 7e6f7c83_3515_4e0d_5362_4eb9515b4a86
  84057c57_14eb_2f16_cd5c_1899e8da6db0["baseEnvironment.ts"]
  b64390ad_e6bf_4b1e_f7f0_39d49791e7e0 --> 84057c57_14eb_2f16_cd5c_1899e8da6db0
  dc928824_33f2_0b61_b231_90d8800b77a5["PartialEnvironment"]
  b64390ad_e6bf_4b1e_f7f0_39d49791e7e0 --> dc928824_33f2_0b61_b231_90d8800b77a5
  51e96894_3556_ed5c_1ede_97d449867adf["node:path"]
  b64390ad_e6bf_4b1e_f7f0_39d49791e7e0 --> 51e96894_3556_ed5c_1ede_97d449867adf
  35b0e4f0_6e49_5afb_03d5_4d5a2f9632c2["external.spec.ts"]
  35b0e4f0_6e49_5afb_03d5_4d5a2f9632c2 --> b64390ad_e6bf_4b1e_f7f0_39d49791e7e0
  style b64390ad_e6bf_4b1e_f7f0_39d49791e7e0 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

import path from 'node:path'
import type { InternalResolveOptions } from './plugins/resolve'
import { tryNodeResolve } from './plugins/resolve'
import {
  bareImportRE,
  createDebugger,
  createFilter,
  getNpmPackageName,
  isBuiltin,
  isInNodeModules,
} from './utils'
import type { Environment } from './environment'
import type { PartialEnvironment } from './baseEnvironment'

const debug = createDebugger('vite:external')

const isExternalCache = new WeakMap<
  Environment,
  (id: string, importer?: string) => boolean
>()

export function shouldExternalize(
  environment: Environment,
  id: string,
  importer: string | undefined,
): boolean {
  let isExternal = isExternalCache.get(environment)
  if (!isExternal) {
    isExternal = createIsExternal(environment)
    isExternalCache.set(environment, isExternal)
  }
  return isExternal(id, importer)
}

export function createIsConfiguredAsExternal(
  environment: PartialEnvironment,
): (id: string, importer?: string) => boolean {
  const { config } = environment
  const { root, resolve } = config
  const { external, noExternal } = resolve
  const noExternalFilter =
    typeof noExternal !== 'boolean' &&
    !(Array.isArray(noExternal) && noExternal.length === 0) &&
    createFilter(undefined, noExternal, { resolve: false })

  const targetConditions = resolve.externalConditions

  const resolveOptions: InternalResolveOptions = {
    ...resolve,
    root,
    isProduction: false,
    isBuild: true,
    conditions: targetConditions,
  }

  const isExternalizable = (
    id: string,
    importer: string | undefined,
    configuredAsExternal: boolean,
  ): boolean => {
// ... (94 more lines)

Domain

Subdomains

Functions

Dependencies

Imported By

Source

Frequently Asked Questions

What does external.ts do?
external.ts is a source file in the vite codebase, written in typescript. It belongs to the ViteCore domain, ConfigEngine subdomain.
What functions are defined in external.ts?
external.ts defines 5 function(s): canExternalizeFile, createIsConfiguredAsExternal, createIsExternal, id, shouldExternalize.
What does external.ts depend on?
external.ts imports 13 module(s): Environment, InternalResolveOptions, PartialEnvironment, baseEnvironment.ts, createDebugger, environment.ts, getNpmPackageName, isBuiltin, and 5 more.
What files import external.ts?
external.ts is imported by 3 file(s): external.spec.ts, importAnalysis.ts, resolve.ts.
Where is external.ts in the architecture?
external.ts is located at packages/vite/src/node/external.ts (domain: ViteCore, subdomain: ConfigEngine, directory: packages/vite/src/node).

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