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75 lines
2.2 KiB
75 lines
2.2 KiB
4 years ago
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import { TransformAssetUrlsOptions } from './assetUrl'
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import { UrlWithStringQuery, parse as uriParse } from 'url'
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import path from 'path'
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export interface Attr {
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name: string
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value: string
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}
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export interface ASTNode {
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tag: string
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attrs: Attr[]
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}
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export function urlToRequire(
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url: string,
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transformAssetUrlsOption: TransformAssetUrlsOptions = {}
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): string {
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const returnValue = `"${url}"`
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// same logic as in transform-require.js
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const firstChar = url.charAt(0)
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if (firstChar === '~') {
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const secondChar = url.charAt(1)
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url = url.slice(secondChar === '/' ? 2 : 1)
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}
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const uriParts = parseUriParts(url)
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if (transformAssetUrlsOption.base) {
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// explicit base - directly rewrite the url into absolute url
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// does not apply to absolute urls or urls that start with `@`
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// since they are aliases
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if (firstChar === '.' || firstChar === '~') {
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// when packaged in the browser, path will be using the posix-
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// only version provided by rollup-plugin-node-builtins.
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return `"${(path.posix || path).join(
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transformAssetUrlsOption.base,
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uriParts.path + (uriParts.hash || '')
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)}"`
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}
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return returnValue
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}
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if (firstChar === '.' || firstChar === '~' || firstChar === '@') {
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if (!uriParts.hash) {
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return `require("${url}")`
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} else {
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// support uri fragment case by excluding it from
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// the require and instead appending it as string;
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// assuming that the path part is sufficient according to
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// the above caseing(t.i. no protocol-auth-host parts expected)
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return `require("${uriParts.path}") + "${uriParts.hash}"`
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}
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}
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return returnValue
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}
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/**
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* vuejs/component-compiler-utils#22 Support uri fragment in transformed require
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* @param urlString an url as a string
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*/
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function parseUriParts(urlString: string): UrlWithStringQuery {
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// initialize return value
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const returnValue: UrlWithStringQuery = uriParse('')
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if (urlString) {
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// A TypeError is thrown if urlString is not a string
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// @see https://nodejs.org/api/url.html#url_url_parse_urlstring_parsequerystring_slashesdenotehost
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if ('string' === typeof urlString) {
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// check is an uri
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return uriParse(urlString) // take apart the uri
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}
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}
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return returnValue
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}
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