зеркало из https://github.com/github/docs.git
89 строки
2.6 KiB
JavaScript
89 строки
2.6 KiB
JavaScript
const path = require('path')
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const { getPathWithoutLanguage } = require('../lib/path-utils')
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module.exports = async (req, res, next) => {
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if (!req.context.page) return next()
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if (req.context.page.hidden) return next()
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req.context.breadcrumbs = {}
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// Return an empty object on the landing page
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if (req.context.page.relativePath === 'index.md') return next()
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const rawPath = getPathWithoutLanguage(req.path)
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const pathParts = rawPath.split('/')
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// drop first '/'
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pathParts.shift()
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// drop the version segment so pathParts now starts with /product
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pathParts.shift()
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const productPath = path.posix.join('/', req.context.currentProduct)
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const product = req.context.siteTree[req.language][req.context.currentVersion].products[req.context.currentProduct]
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req.context.breadcrumbs.product = {
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href: path.posix.join('/', req.context.currentLanguage, req.context.currentVersion, productPath),
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title: product.title
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}
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if (!pathParts[1]) return next()
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// get category path
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// e.g., `getting-started-with-github` in /free-pro-team@latest/github/getting-started-with-github
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// or /enterprise-server@2.21/github/getting-started-with-github
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const categoryPath = path.posix.join('/', req.context.currentLanguage, req.context.currentVersion, productPath, pathParts[1])
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const category = product.categories[categoryPath]
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if (!category) return next()
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req.context.breadcrumbs.category = {
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href: categoryPath,
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title: category.shortTitle || category.title
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}
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if (!pathParts[2]) return next()
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// get maptopic path
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// e.g., /github/getting-started-with-github/learning-about-github
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let maptopic
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if (req.context.page.mapTopic) {
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const maptopicPath = req.path
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maptopic = category.maptopics[maptopicPath]
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if (!maptopic) return next()
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req.context.breadcrumbs.maptopic = {
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href: maptopicPath,
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title: maptopic.shortTitle || maptopic.title
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}
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} else {
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const articlePath = req.path
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// find parent maptopic if one exists
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// some categories don't have maptopics, e.g. site-policy
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if (category.maptopics) {
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maptopic = Object.values(category.maptopics).find(maptopic => maptopic.articles[articlePath])
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if (maptopic) {
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req.context.breadcrumbs.maptopic = {
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href: maptopic.href,
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title: maptopic.shortTitle || maptopic.title
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}
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}
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}
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const articlePage = req.context.page
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const articleTitle = await articlePage.renderProp('shortTitle', req.context, { textOnly: true, encodeEntities: true })
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req.context.breadcrumbs.article = {
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href: articlePath,
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title: articleTitle
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}
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}
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return next()
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}
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