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docs/src/search/scripts/scrape/lib/build-records.ts

137 lines
5.0 KiB
TypeScript

import eventToPromise from 'event-to-promise'
import chalk from 'chalk'
import dotenv from 'dotenv'
import boxen from 'boxen'
import languages from '@/languages/lib/languages'
import parsePageSectionsIntoRecords from '@/search/scripts/scrape/lib/parse-page-sections-into-records'
import getPopularPages from '@/search/scripts/scrape/lib/popular-pages'
import domwaiter from '@/search/scripts/scrape/lib/domwaiter'
import { getAllVersionsKeyFromIndexVersion } from '@/search/lib/elasticsearch-versions'
import type { Page, Permalink, Record, Config, Redirects } from '@/search/scripts/scrape/types'
// Custom error class to replace got's HTTPError
class HTTPError extends Error {
response: { ok: boolean; statusCode?: number }
request: { requestUrl?: { pathname?: string } }
constructor(
message: string,
response: { ok: boolean; statusCode?: number },
request: { requestUrl?: { pathname?: string } },
) {
super(message)
this.name = 'HTTPError'
this.response = response
this.request = request
}
}
const pageMarker = chalk.green('|')
const recordMarker = chalk.grey('.')
const port = 4002
dotenv.config()
// These defaults are known to work fine in GitHub Actions.
// For local development, you can override these in your local .env file.
// For example:
// echo 'BUILD_RECORDS_MAX_CONCURRENT=20' >> .env
// echo 'BUILD_RECORDS_MIN_TIME=50' >> .env
const MAX_CONCURRENT = parseInt(process.env.BUILD_RECORDS_MAX_CONCURRENT || '100', 10)
const MIN_TIME = parseInt(process.env.BUILD_RECORDS_MIN_TIME || '5', 10)
// These products, forcibly always get a popularity of 0 independent of
// their actual popularity which comes from an external JSON file.
// The objective for this is to reduce their search result ranking
// when multiple docs match on a certain keyword(s).
const FORCE_0_POPULARITY_PRODUCTS = new Set(['contributing'])
export default async function buildRecords(
indexName: string,
indexablePages: Page[],
indexVersion: string,
languageCode: string,
redirects: Redirects,
config: Config = {} as Config,
): Promise<Record[]> {
// Determine the page version from the index version
const pageVersion = getAllVersionsKeyFromIndexVersion(indexVersion)
const { noMarkers, docsInternalDataPath } = config
console.log(`\n\nBuilding records for index '${indexName}' (${languages[languageCode].name})`)
const records: Record[] = []
const pages = indexablePages
// exclude pages that are not in the current language
.filter((page) => page.languageCode === languageCode)
// exclude pages that don't have a permalink for the current product version
.filter((page) => page.permalinks.some((permalink) => permalink.pageVersion === pageVersion))
// Find the approve permalink for the given language and GitHub product variant (dotcom v enterprise)
const permalinks = pages
.map((page) => {
return page.permalinks.find((permalink) => {
return permalink.languageCode === languageCode && permalink.pageVersion === pageVersion
})
})
.map((permalink) => {
if (permalink) {
permalink.url = `http://localhost:${port}${permalink.href}`
}
return permalink
})
.filter((permalink): permalink is Permalink => permalink !== undefined)
const popularPages = docsInternalDataPath
? await getPopularPages(docsInternalDataPath, redirects, indexVersion, languageCode)
: {}
console.log('indexable pages', indexablePages.length)
console.log('pages in index', pages.length)
console.log('permalinks in index', permalinks.length)
console.log(pageMarker, 'denotes pages')
console.log(recordMarker, 'denotes records derived from sections of pages')
console.log('popular page ratios', Object.keys(popularPages).length)
const hasPopularPages = Object.keys(popularPages).length > 0
const waiter = domwaiter(permalinks, { maxConcurrent: MAX_CONCURRENT, minTime: MIN_TIME })
.on('page', (page) => {
if (!noMarkers) process.stdout.write(pageMarker)
const newRecord = parsePageSectionsIntoRecords(page)
const pathArticle = page.relativePath.replace('/index.md', '').replace('.md', '')
let popularity = (hasPopularPages && popularPages[pathArticle]) || 0.0
if (FORCE_0_POPULARITY_PRODUCTS.size) {
const product = newRecord.objectID.split('/')[2]
if (FORCE_0_POPULARITY_PRODUCTS.has(product)) {
popularity = 0.0
}
}
newRecord.popularity = popularity
if (!noMarkers) process.stdout.write(recordMarker)
records.push(newRecord)
})
.on('error', (err) => {
if (err instanceof HTTPError && !err.response.ok) {
console.log(
'\n' +
boxen(chalk.bold(err.request.requestUrl?.pathname), {
title: chalk.red('The URL it failed on was'),
padding: 1,
borderColor: 'red',
}) +
'\n',
)
} else {
console.error(err)
}
})
return eventToPromise(waiter, 'done').then(() => {
console.log('\nrecords in index: ', records.length)
return records
})
}