4cd4fd28
郭伟龙
feat: 初始化项目
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import { TransformAssetUrlsOptions } from './assetUrl'
import { UrlWithStringQuery, parse as uriParse } from 'url'
import path from 'path'
export function urlToRequire(
url: string,
transformAssetUrlsOption: TransformAssetUrlsOptions = {}
): string {
const returnValue = `"${url}"`
// same logic as in transform-require.js
const firstChar = url.charAt(0)
if (firstChar === '~') {
const secondChar = url.charAt(1)
url = url.slice(secondChar === '/' ? 2 : 1)
}
if (isExternalUrl(url) || isDataUrl(url) || firstChar === '#') {
return returnValue
}
const uriParts = parseUriParts(url)
if (transformAssetUrlsOption.base) {
// explicit base - directly rewrite the url into absolute url
// does not apply to absolute urls or urls that start with `@`
// since they are aliases
if (firstChar === '.' || firstChar === '~') {
// Allow for full hostnames provided in options.base
const base = parseUriParts(transformAssetUrlsOption.base)
const protocol = base.protocol || ''
const host = base.host ? protocol + '//' + base.host : ''
const basePath = base.path || '/'
// when packaged in the browser, path will be using the posix-
// only version provided by rollup-plugin-node-builtins.
return `"${host}${(path.posix || path).join(
basePath,
uriParts.path + (uriParts.hash || '')
)}"`
}
}
if (
transformAssetUrlsOption.includeAbsolute ||
firstChar === '.' ||
firstChar === '~' ||
firstChar === '@'
) {
if (!uriParts.hash) {
return `require("${url}")`
} else {
// support uri fragment case by excluding it from
// the require and instead appending it as string;
// assuming that the path part is sufficient according to
// the above caseing(t.i. no protocol-auth-host parts expected)
return `require("${uriParts.path}") + "${uriParts.hash}"`
}
}
return returnValue
}
/**
* vuejs/component-compiler-utils#22 Support uri fragment in transformed require
* @param urlString an url as a string
*/
function parseUriParts(urlString: string): UrlWithStringQuery {
// initialize return value
const returnValue: UrlWithStringQuery = uriParse('')
if (urlString) {
// A TypeError is thrown if urlString is not a string
// @see https://nodejs.org/api/url.html#url_url_parse_urlstring_parsequerystring_slashesdenotehost
if ('string' === typeof urlString) {
// check is an uri
return uriParse(urlString, false, true) // take apart the uri
}
}
return returnValue
}
const externalRE = /^(https?:)?\/\//
function isExternalUrl(url: string): boolean {
return externalRE.test(url)
}
const dataUrlRE = /^\s*data:/i
function isDataUrl(url: string): boolean {
return dataUrlRE.test(url)
}
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