#!/usr/bin/env node'use strict';
var fs = require('fs'), cheerio = require('cheerio'), yamlFront = require('yaml-front-matter');var URL = '{{site.baseurl}}/docs/';
var DIR = __dirname + '/../site/';var DOCS_LAYOUT = DIR + '/_layouts/docs.html';var COMPILED_DOCS = DIR + '/_site/docs';var TOC = DIR + '/_includes/docs_toc.md';
var CONTENT_TAG = '.page-content';var INNER_LINK_TAG = 'h2';
var writeStream = fs.createWriteStream(TOC, {flags: 'w'}); // w flag means overwrite existing file
writeStream.write('[//]: # (Auto-generated by scripts/generate-toc)\r\n');
// generate markdown for list itemfunction generateListItem(content, buffer) { var indent = ''; for (var i = 0; i < buffer; i++) { indent += ' '; } return `${indent}- ${content}`;}
// generate markdown for anchor tagfunction generateLink(title, page, local) { return `[${title}](${URL}${page}.html${local || ''})`;}
// parse Docs layoutfs.readFile(DOCS_LAYOUT, function(err, contents) { if (err) { throw err; } var front = yamlFront.loadFront(contents.toString()); var sidebar = front.sidebar; // docs sidebar, top level function parseSidebar(sidebar, depth) { for (const el of sidebar) { // skip break and table of contents itself if (!el.break && el.url !== 'toc') { var page = `${COMPILED_DOCS}/${el.url}.html`; // generate markdown for top level navigation var link = generateLink(el.text, el.url); var li = generateListItem(link, depth); writeStream.write(li + '\r\n'); // build DOM var $ = cheerio.load(fs.readFileSync(page).toString()); // iterate through links in DOM tree $(CONTENT_TAG + ' ' + INNER_LINK_TAG).each(function() { // generate markdown for in-page navigation var hash = '#' + $(this).attr('id'); var link = generateLink($(this).text(), el.url, hash); var li = generateListItem(link, depth + 1); writeStream.write(li + '\r\n'); }); } // recurse if there is a sub-sidebar if (el['sub-sidebar'] !== undefined) { parseSidebar(el['sub-sidebar'], depth + 1); } } } // begin parse parseSidebar(sidebar, 0);});