127b6612c9
Separate out download code from the rest. Re-do the download code to store URLs alongside HTML, and add support for resuming from the last-seen URL.
84 lines
2.5 KiB
JavaScript
84 lines
2.5 KiB
JavaScript
"use strict";
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const path = require("path");
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const fs = require("mz/fs");
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const mkdirp = require("mkdirp-then");
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const rimraf = require("rimraf-then");
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const jsdom = require("jsdom");
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const download = require("./download.js");
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require("./track-rejections.js");
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const START_CHAPTER_URL = "https://parahumans.wordpress.com/2011/06/11/1-1/";
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const cachePath = path.resolve("cache");
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const outPath = path.resolve("out");
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const contentPath = path.resolve(outPath, "OEBPS");
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rimraf(outPath)
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.then(function () {
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return mkdirp(contentPath);
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})
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.then(function () {
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return download(START_CHAPTER_URL, cachePath);
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})
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.then(readAllRawChapterDocs)
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.then(function (rawChapterDocs) {
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console.log("Extracting content into EPUB chapter files");
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return Promise.all(rawChapterDocs.map(function (rawChapterDoc, i) {
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const output = getChapterString(rawChapterDoc);
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const destFilename = path.resolve(contentPath, `chapter${i + 1}.xhtml`);
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return fs.writeFile(destFilename, output);
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}));
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})
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.then(function () {
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console.log("All done!");
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});
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function readAllRawChapterDocs() {
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return fs.readdir(cachePath).then(function (filenames) {
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const htmlFiles = filenames.filter(function (f) { return f.endsWith(".html"); });
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return Promise.all(htmlFiles.map(readRawChapterDoc));
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});
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}
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function readRawChapterDoc(filename) {
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const filePath = path.resolve(cachePath, filename);
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return fs.readFile(filePath, { encoding: "utf-8" }).then(function (contents) {
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return jsdom.jsdom(contents);
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});
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}
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function getChapterString(rawChapterDoc) {
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const title = rawChapterDoc.querySelector("h1.entry-title").textContent;
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const body = cleanContentEl(rawChapterDoc.querySelector(".entry-content")).innerHTML;
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return `<?xml version="1.0" encoding="UTF-8" ?>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
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<head>
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<meta http-equiv="Content-Type" content="application/xhtml+xml; charset=utf-8" />
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<title>${title}</title>
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</head>
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<body>
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<h1>${title}</h1>
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${body}
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</body>
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</html>`;
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}
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function cleanContentEl(el) {
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// Remove Next Chapter and Previous Chapter <p>s
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el.removeChild(el.firstElementChild);
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el.removeChild(el.lastElementChild);
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// Remove redundant dir="ltr"
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Array.prototype.forEach.call(el.children, function (child) {
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if (child.getAttribute("dir") === "ltr") {
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child.removeAttribute("dir");
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}
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});
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return el;
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}
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