Redirecting Old HTML to Blogger

README.md

Some code to create classic HTML redirect pages. For reference, see:

https://www.w3docs.com/snippets/html/how-to-redirect-a-web-page-in-html.html

files.txt

2001_03_04_archive.html
2001_03_11_archive.html
2001_03_18_archive.html
2001_03_25_archive.html
2001_04_01_archive.html
2005_02_27_archive.html
2005_03_06_archive.html
archive-detail.html
archive.html
index.html

index.js

const fs = require('fs')
const byline = require('byline')
const pug = require('pug')

const stream = byline(fs.createReadStream('files.txt'))

const re = /(?<year_str>\d\d\d\d)_(?<month_str>\d\d)_(?<day_str>\d\d)_archive.html/

const fn = pug.compileFile('redirector.pug', { pretty: true, debug: false })

const { DateTime } = require('luxon')

function writeRedirectFile (fileName, newUrl, refreshValue) {
  const ws = fs.createWriteStream(fileName)
  const locals = { fileName: fileName, newUrl: newUrl, refreshValue: refreshValue }
  const html = fn(locals)
  ws.write(html)
  ws.end()
}

stream.on('data', function (line) {
  const fileName = line.toString()
  const match = re.exec(fileName)
  if (match != null) {
    const minDate = `${match.groups.year_str}-${match.groups.month_str}-${match.groups.day_str}`
    const maxDate = DateTime.fromISO(minDate).plus({ days: 7 }).toISODate()
    const newUrl = `http://blog.rickumali.com/search?updated-min=${minDate}T00:00:00-05:00&updated-max=${maxDate}T00:00:00-05:00&reverse-paginate=true`
    const refreshValue = `0; url=${newUrl}`
    writeRedirectFile(fileName, newUrl, refreshValue)
  } else {
    const newUrl = 'http://blog.rickumali.com/'
    const refreshValue = `0; url=${newUrl}`
    writeRedirectFile(fileName, newUrl, refreshValue)
  }
})

package.json

{
  "name": "oldblog-redirects",
  "version": "1.0.0",
  "description": "Simple I/O to make HTML files from a list of files",
  "main": "index.js",
  "private": true,
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "keywords": [
    "HTML",
    "byline"
  ],
  "author": "Rick Umali",
  "license": "MIT",
  "dependencies": {
    "byline": "^5.0.0",
    "luxon": "^1.26.0",
    "pug": "^3.0.2"
  },
  "devDependencies": {
    "standard": "^16.0.3"
  }
}

redirector.pug

head
  title BLOG Page Permanently Moved
  meta(http-equiv='refresh', content=refreshValue)
  meta(charset='utf-8')
body
  // 302 Redirecting to New Location
  center
    h1 BLOG Page Permanently Moved
    h2 This page will automatically refresh.
    p (Click link below if page does not refresh.)
    p
      a(href=newUrl) #{newUrl}
    p
      sm Rick Umali