init.js

   1 // GPLv3 License
   2 const fs = require("fs")
   3 const download = require("download")
   4 const cliProgress = require("cli-progress")
   5 const unzipper = require("unzipper")
   6 const pdfkit = require("pdfkit")
   7 const sharp = require("sharp")
   8
   9 const url = "http://images.mangafreak.net/downloads/Horimiya_"
  10 const chapters = 124
  11
  12 const bar = new cliProgress.SingleBar({}, cliProgress.Presets.legacy)
  13 bar.start(chapters, 0, { speed: "N/A" })
  14
  15 const doc = new pdfkit({autoFirstPage: false})
  16 doc.pipe(fs.createWriteStream("Horimiya.pdf"))
  17
  18 fs.promises.rm("pages", {recursive: true, force: true})
  19         .then(_ => fs.promises.mkdir("pages"))
  20         .then(_ => Promise.all(new Array(chapters)
  21                 .fill(null)
  22                 .map((_, i) => i + 1)
  23                 .map(n => download(url + n)
  24                         .pipe(unzipper.Extract({ path: "pages" }))
  25                         .promise()
  26                         .then(_ => bar.increment())
  27                 )
  28         ))
  29         .then(_ => bar.stop())
  30         .then(_ => fs.promises.readdir("pages"))
  31         .then(files => files
  32                 .sort(new Intl.Collator(undefined, { numeric: true }).compare)
  33                 .map(file => "pages/" + file)
  34                 .map(file => doc.openImage(file))
  35                 .forEach(img => doc.addPage({size: [img.width, img.height]}).image(img, 0, 0))
  36         )
  37         .then(_ => doc.end())