40 lines
941 B
JavaScript
40 lines
941 B
JavaScript
const url = require('url')
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const URLFormat = /^\/((?:@[^\/@]+\/)?[^\/@]+)(?:@([^\/]+))?(\/.*)?$/
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function decodeParam(param) {
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if (param) {
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try {
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return decodeURIComponent(param)
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} catch (error) {
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// Ignore invalid params.
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}
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}
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return ''
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}
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function parsePackageURL(packageURL) {
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const { pathname, search, query } = url.parse(packageURL, true)
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const match = URLFormat.exec(pathname)
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if (match == null)
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return null
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const packageName = match[1]
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const packageVersion = decodeParam(match[2]) || 'latest'
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const filename = decodeParam(match[3])
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return { // If the URL is /@scope/name@version/file.js?main=browser:
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pathname, // /@scope/name@version/path.js
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search, // ?main=browser
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query, // { main: 'browser' }
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packageName, // @scope/name
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packageVersion, // version
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filename // /file.js
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}
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}
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module.exports = parsePackageURL
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