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