3df90fc9b8
Are you looking for something? Here is all of the GitHub Docs history in one single commit. Enjoy! 🎉
79 lines
2.9 KiB
JavaScript
79 lines
2.9 KiB
JavaScript
const { get } = require('lodash')
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const env = require('lil-env-thing')
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const { liquid } = require('../lib/render-content')
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const patterns = require('../lib/patterns')
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const layouts = require('../lib/layouts')
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const getMiniTocItems = require('../lib/get-mini-toc-items')
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const Page = require('../lib/page')
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module.exports = async function renderPage (req, res, next) {
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const page = req.context.page
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// render a 404 page
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if (!page) {
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if (process.env.NODE_ENV !== 'test' && req.context.redirectNotFound) {
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console.error(`\nTried to redirect to ${req.context.redirectNotFound}, but that page was not found.\n`)
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}
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return res.status(404).send(await liquid.parseAndRender(layouts['error-404'], req.context))
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}
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if (req.method === 'HEAD') {
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return res.status(200).end()
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}
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// add page context
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const context = Object.assign({}, req.context, { page })
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// collect URLs for variants of this page in all languages
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context.page.languageVariants = Page.getLanguageVariants(req.path)
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// render page
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context.renderedPage = await page.render(context)
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// get mini TOC items on articles
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if (page.showMiniToc) {
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context.miniTocItems = getMiniTocItems(context.renderedPage, page.miniTocMaxHeadingLevel)
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}
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// handle special-case prerendered GraphQL objects page
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if (req.path.endsWith('graphql/reference/objects')) {
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// concat the markdown source miniToc items and the prerendered miniToc items
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context.miniTocItems = context.miniTocItems.concat(req.context.graphql.prerenderedObjectsForCurrentVersion.miniToc)
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context.renderedPage = context.renderedPage + req.context.graphql.prerenderedObjectsForCurrentVersion.html
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}
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// Create string for <title> tag
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context.page.fullTitle = context.page.title
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// add localized ` - GitHub Docs` suffix to <title> tag (except for the homepage)
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if (!patterns.homepagePath.test(req.path)) {
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context.page.fullTitle = context.page.fullTitle + ' - ' + context.site.data.ui.header.github_docs
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}
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// `?json` query param for debugging request context
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if ('json' in req.query && !env.production) {
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if (req.query.json.length > 1) {
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// deep reference: ?json=page.permalinks
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return res.json(get(context, req.query.json))
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} else {
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// dump all the keys: ?json
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return res.json({
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message: 'The full context object is too big to display! Try one of the individual keys below, e.g. ?json=page. You can also access nested props like ?json=site.data.reusables',
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keys: Object.keys(context)
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})
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}
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}
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// Layouts can be specified with a `layout` frontmatter value
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// If unspecified, `layouts/default.html` is used.
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// Any invalid layout values will be caught by frontmatter schema validation.
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const layoutName = context.page.layout || 'default'
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// Set `layout: false` to use no layout
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const layout = context.page.layout === false ? '' : layouts[layoutName]
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const output = await liquid.parseAndRender(layout, context)
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res.send(output)
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}
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