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utils.ts
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utils.ts
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import { fileURLToPath, pathToFileURL } from 'node:url'
import { builtinModules } from 'node:module'
import { existsSync } from 'node:fs'
import { resolve } from 'pathe'
import type { Arrayable, Nullable } from './types'
export const isWindows = process.platform === 'win32'
export function slash(str: string) {
return str.replace(/\\/g, '/')
}
export const VALID_ID_PREFIX = '/@id/'
export function normalizeRequestId(id: string, base?: string): string {
if (base && id.startsWith(base))
id = `/${id.slice(base.length)}`
return id
.replace(/^\/@id\/__x00__/, '\0') // virtual modules start with `\0`
.replace(/^\/@id\//, '')
.replace(/^__vite-browser-external:/, '')
.replace(/^file:/, '')
.replace(/^\/+/, '/') // remove duplicate leading slashes
.replace(/\?v=\w+/, '?') // remove ?v= query
.replace(/&v=\w+/, '') // remove &v= query
.replace(/\?t=\w+/, '?') // remove ?t= query
.replace(/&t=\w+/, '') // remove &t= query
.replace(/\?import/, '?') // remove ?import query
.replace(/&import/, '') // remove &import query
.replace(/\?&/, '?') // replace ?& with just ?
.replace(/\?+$/, '') // remove end query mark
}
export const queryRE = /\?.*$/s
export const hashRE = /#.*$/s
export function cleanUrl(url: string): string {
return url.replace(hashRE, '').replace(queryRE, '')
}
const internalRequests = [
'@vite/client',
'@vite/env',
]
const internalRequestRegexp = new RegExp(`^/?(${internalRequests.join('|')})$`)
export function isInternalRequest(id: string): boolean {
return internalRequestRegexp.test(id)
}
const prefixedBuiltins = new Set([
'node:test',
])
const builtins = new Set([
...builtinModules,
'assert/strict',
'diagnostics_channel',
'dns/promises',
'fs/promises',
'path/posix',
'path/win32',
'readline/promises',
'stream/consumers',
'stream/promises',
'stream/web',
'timers/promises',
'util/types',
'wasi',
])
export function normalizeModuleId(id: string) {
// unique id that is not available as "test"
if (prefixedBuiltins.has(id))
return id
return id
.replace(/\\/g, '/')
.replace(/^\/@fs\//, isWindows ? '' : '/')
.replace(/^file:\//, '/')
.replace(/^node:/, '')
.replace(/^\/+/, '/')
}
export function isPrimitive(v: any) {
return v !== Object(v)
}
export function toFilePath(id: string, root: string): { path: string; exists: boolean } {
let { absolute, exists } = (() => {
if (id.startsWith('/@fs/'))
return { absolute: id.slice(4), exists: true }
// check if /src/module.js -> <root>/src/module.js
if (!id.startsWith(root) && id.startsWith('/')) {
const resolved = resolve(root, id.slice(1))
if (existsSync(cleanUrl(resolved)))
return { absolute: resolved, exists: true }
}
else if (id.startsWith(root) && existsSync(cleanUrl(id))) {
return { absolute: id, exists: true }
}
return { absolute: id, exists: false }
})()
if (absolute.startsWith('//'))
absolute = absolute.slice(1)
// disambiguate the `<UNIT>:/` on windows: see nodejs/node#31710
return {
path: (isWindows && absolute.startsWith('/'))
? slash(fileURLToPath(pathToFileURL(absolute.slice(1)).href))
: absolute,
exists,
}
}
const NODE_BUILTIN_NAMESPACE = 'node:'
export function isNodeBuiltin(id: string): boolean {
if (prefixedBuiltins.has(id))
return true
return builtins.has(
id.startsWith(NODE_BUILTIN_NAMESPACE)
? id.slice(NODE_BUILTIN_NAMESPACE.length)
: id,
)
}
/**
* Convert `Arrayable<T>` to `Array<T>`
*
* @category Array
*/
export function toArray<T>(array?: Nullable<Arrayable<T>>): Array<T> {
if (array === null || array === undefined)
array = []
if (Array.isArray(array))
return array
return [array]
}