392 lines
11 KiB
JavaScript
392 lines
11 KiB
JavaScript
const path = require('path');
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const { findIndex, reduce, toString } = require('lodash');
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const readDirP = require('readdirp');
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const yaml = require('js-yaml');
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const { parseMD } = require('../tools/challenge-parser/parser');
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const fs = require('fs');
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const util = require('util');
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/* eslint-disable max-len */
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const {
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translateCommentsInChallenge
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} = require('../tools/challenge-parser/translation-parser');
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/* eslint-enable max-len*/
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const { isAuditedCert } = require('../config/is-audited');
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const { dasherize } = require('../utils/slugs');
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const { createPoly } = require('../utils/polyvinyl');
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const { helpCategoryMap } = require('../client/utils/challengeTypes');
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const { curriculum: curriculumLangs } =
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require('../config/i18n/all-langs').availableLangs;
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const { showUpcomingChanges } = require('../config/env.json');
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const access = util.promisify(fs.access);
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const challengesDir = path.resolve(__dirname, './challenges');
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const metaDir = path.resolve(challengesDir, '_meta');
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exports.challengesDir = challengesDir;
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exports.metaDir = metaDir;
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const COMMENT_TRANSLATIONS = createCommentMap(
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path.resolve(__dirname, './dictionaries')
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);
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function getTranslatableComments(dictionariesDir) {
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const COMMENTS_TO_TRANSLATE = require(path.resolve(
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dictionariesDir,
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'english',
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'comments.json'
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));
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return Object.values(COMMENTS_TO_TRANSLATE);
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}
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exports.getTranslatableComments = getTranslatableComments;
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function createCommentMap(dictionariesDir) {
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// get all the languages for which there are dictionaries.
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const languages = fs
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.readdirSync(dictionariesDir)
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.filter(x => x !== 'english');
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// get all their dictionaries
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const dictionaries = languages.reduce(
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(acc, lang) => ({
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...acc,
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[lang]: require(path.resolve(dictionariesDir, lang, 'comments.json'))
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}),
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{}
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);
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// get the english dicts
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const COMMENTS_TO_TRANSLATE = require(path.resolve(
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dictionariesDir,
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'english',
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'comments.json'
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));
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const COMMENTS_TO_NOT_TRANSLATE = require(path.resolve(
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dictionariesDir,
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'english',
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'comments-to-not-translate'
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));
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// map from english comment text to translations
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const translatedCommentMap = Object.entries(COMMENTS_TO_TRANSLATE).reduce(
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(acc, [id, text]) => {
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return {
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...acc,
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[text]: getTranslationEntry(dictionaries, { engId: id, text })
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};
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},
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{}
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);
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// map from english comment text to itself
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const untranslatableCommentMap = Object.values(
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COMMENTS_TO_NOT_TRANSLATE
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).reduce((acc, text) => {
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const englishEntry = languages.reduce(
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(acc, lang) => ({
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...acc,
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[lang]: text
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}),
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{}
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);
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return {
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...acc,
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[text]: englishEntry
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};
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}, {});
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return { ...translatedCommentMap, ...untranslatableCommentMap };
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}
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exports.createCommentMap = createCommentMap;
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function getTranslationEntry(dicts, { engId, text }) {
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return Object.keys(dicts).reduce((acc, lang) => {
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const entry = dicts[lang][engId];
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if (entry) {
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return { ...acc, [lang]: entry };
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} else {
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throw Error(`Missing translation for comment
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'${text}'
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with id of ${engId}`);
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}
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}, {});
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}
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function getChallengesDirForLang(lang) {
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return path.resolve(challengesDir, `./${lang}`);
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}
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function getMetaForBlock(block) {
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return JSON.parse(
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fs.readFileSync(path.resolve(metaDir, `./${block}/meta.json`), 'utf8')
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);
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}
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function parseCert(filePath) {
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return yaml.load(fs.readFileSync(filePath, 'utf8'));
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}
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exports.getChallengesDirForLang = getChallengesDirForLang;
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exports.getMetaForBlock = getMetaForBlock;
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// This recursively walks the directories starting at root, and calls cb for
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// each file/directory and only resolves once all the callbacks do.
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const walk = (root, target, options, cb) => {
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return new Promise(resolve => {
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let running = 1;
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function done() {
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if (--running === 0) {
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resolve(target);
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}
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}
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readDirP(root, options)
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.on('data', file => {
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running++;
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cb(file, target).then(done);
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})
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.on('end', done);
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});
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};
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exports.getChallengesForLang = async function getChallengesForLang(lang) {
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const root = getChallengesDirForLang(lang);
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// scaffold the curriculum, first set up the superblocks, then recurse into
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// the blocks
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const curriculum = await walk(
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root,
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{},
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{ type: 'directories', depth: 1 },
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buildSuperBlocks
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);
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const cb = (file, curriculum) => buildChallenges(file, curriculum, lang);
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// fill the scaffold with the challenges
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return walk(
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root,
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curriculum,
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{ type: 'files', fileFilter: ['*.md', '*.yml'] },
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cb
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);
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};
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async function buildBlocks({ basename: blockName }, curriculum, superBlock) {
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const metaPath = path.resolve(
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__dirname,
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`./challenges/_meta/${blockName}/meta.json`
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);
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const blockMeta = require(metaPath);
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const { isUpcomingChange } = blockMeta;
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if (typeof isUpcomingChange !== 'boolean') {
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throw Error(
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`meta file at ${metaPath} is missing 'isUpcomingChange', it must be 'true' or 'false'`
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);
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}
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if (!isUpcomingChange || showUpcomingChanges) {
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// add the block to the superBlock
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const blockInfo = { meta: blockMeta, challenges: [] };
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curriculum[superBlock].blocks[blockName] = blockInfo;
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}
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}
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async function buildSuperBlocks({ path, fullPath }, curriculum) {
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const { order, name: superBlock } = superBlockInfo(path);
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curriculum[superBlock] = { superBlock, order, blocks: {} };
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const cb = (file, curriculum) => buildBlocks(file, curriculum, superBlock);
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return walk(fullPath, curriculum, { depth: 1, type: 'directories' }, cb);
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}
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async function buildChallenges({ path }, curriculum, lang) {
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// path is relative to getChallengesDirForLang(lang)
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const block = getBlockNameFromPath(path);
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const { name: superBlock } = superBlockInfoFromPath(path);
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let challengeBlock;
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// TODO: this try block and process exit can all go once errors terminate the
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// tests correctly.
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try {
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challengeBlock = curriculum[superBlock].blocks[block];
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if (!challengeBlock) {
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// this should only happen when a isUpcomingChange block is skipped
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return;
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}
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} catch (e) {
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console.log(`failed to create superBlock ${superBlock}`);
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// eslint-disable-next-line no-process-exit
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process.exit(1);
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}
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const { meta } = challengeBlock;
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const challenge = await createChallenge(challengesDir, path, lang, meta);
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challengeBlock.challenges = [...challengeBlock.challenges, challenge];
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}
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async function parseTranslation(transPath, dict, lang, parse = parseMD) {
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const translatedChal = await parse(transPath);
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const { challengeType } = translatedChal;
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// challengeType 11 is for video challenges and 3 is for front-end projects
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// neither of which have seeds.
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return challengeType !== 11 && challengeType !== 3
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? translateCommentsInChallenge(translatedChal, lang, dict)
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: translatedChal;
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}
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async function createChallenge(basePath, filePath, lang, maybeMeta) {
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function getFullPath(pathLang) {
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return path.resolve(__dirname, basePath, pathLang, filePath);
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}
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let meta;
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if (maybeMeta) {
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meta = maybeMeta;
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} else {
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const metaPath = path.resolve(
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metaDir,
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`./${getBlockNameFromPath(filePath)}/meta.json`
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);
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meta = require(metaPath);
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}
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const { name: superBlock } = superBlockInfoFromPath(filePath);
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if (!curriculumLangs.includes(lang))
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throw Error(`${lang} is not a accepted language.
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Trying to parse ${filePath}`);
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if (lang !== 'english' && !(await hasEnglishSource(basePath, filePath)))
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throw Error(`Missing English challenge for
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${filePath}
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It should be in
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${getFullPath('english')}
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`);
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// assumes superblock names are unique
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// while the auditing is ongoing, we default to English for un-audited certs
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// once that's complete, we can revert to using isEnglishChallenge(fullPath)
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const useEnglish = lang === 'english' || !isAuditedCert(lang, superBlock);
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const isCert = path.extname(filePath) === '.yml';
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let challenge;
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if (isCert) {
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challenge = await (useEnglish
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? parseCert(getFullPath('english'))
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: parseCert(getFullPath(lang)));
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} else {
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challenge = await (useEnglish
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? parseMD(getFullPath('english'))
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: parseTranslation(getFullPath(lang), COMMENT_TRANSLATIONS, lang));
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}
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const challengeOrder = findIndex(
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meta.challengeOrder,
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([id]) => id === challenge.id
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);
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const {
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name: blockName,
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order,
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superOrder,
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isPrivate,
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required = [],
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template,
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time
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} = meta;
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challenge.block = dasherize(blockName);
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challenge.order = order;
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challenge.superOrder = superOrder;
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challenge.superBlock = superBlock;
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challenge.challengeOrder = challengeOrder;
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challenge.isPrivate = challenge.isPrivate || isPrivate;
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challenge.required = required.concat(challenge.required || []);
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challenge.template = template;
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challenge.time = time;
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challenge.helpCategory =
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challenge.helpCategory || helpCategoryMap[challenge.block];
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challenge.translationPending =
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lang !== 'english' && !isAuditedCert(lang, superBlock);
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return prepareChallenge(challenge);
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}
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// TODO: tests and more descriptive name.
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function filesToObject(files) {
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return reduce(
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files,
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(map, file) => {
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map[file.key] = {
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...file,
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head: arrToString(file.head),
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contents: arrToString(file.contents),
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tail: arrToString(file.tail)
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};
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return map;
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},
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{}
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);
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}
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// gets the challenge ready for sourcing into Gatsby
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function prepareChallenge(challenge) {
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if (challenge.files) {
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challenge.files = filesToObject(challenge.files);
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challenge.files = Object.keys(challenge.files)
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.filter(key => challenge.files[key])
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.map(key => challenge.files[key])
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.reduce(
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(files, file) => ({
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...files,
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[file.key]: {
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...createPoly(file),
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seed: file.contents.slice(0)
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}
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}),
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{}
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);
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}
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if (challenge.solutionFiles) {
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challenge.solutionFiles = filesToObject(challenge.solutionFiles);
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}
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return challenge;
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}
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async function hasEnglishSource(basePath, translationPath) {
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const englishRoot = path.resolve(__dirname, basePath, 'english');
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return await access(
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path.join(englishRoot, translationPath),
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fs.constants.F_OK
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)
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.then(() => true)
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.catch(() => false);
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}
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function superBlockInfoFromPath(filePath) {
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const [maybeSuper] = filePath.split(path.sep);
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return superBlockInfo(maybeSuper);
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}
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function superBlockInfo(fileName) {
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const [maybeOrder, ...superBlock] = fileName.split('-');
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let order = parseInt(maybeOrder, 10);
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if (isNaN(order)) {
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return { order: 0, name: fileName };
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} else {
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return {
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order: order,
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name: superBlock.join('-')
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};
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}
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}
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function getBlockNameFromPath(filePath) {
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const [, block] = filePath.split(path.sep);
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return block;
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}
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function arrToString(arr) {
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return Array.isArray(arr) ? arr.join('\n') : toString(arr);
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}
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exports.hasEnglishSource = hasEnglishSource;
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exports.parseTranslation = parseTranslation;
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exports.createChallenge = createChallenge;
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