Create md files from blogger posts

blogger_xml_to_markdown.js

// import from blogger-XX-XX-XXXX.xml

// deps:
/*
  "dedent": "0.6.0",
  "diacritics": "1.2.3",
  "html-entities": "1.2.0",
  "lodash": "4.0.1",
  "marked": "0.3.5",
  "sanitize-filename": "1.5.3",
  "shelljs": "0.5.3",
  "xml2json": "0.9.0"
*/

require('shelljs/global')
var _ = require('lodash')
var dedent = require('dedent')
var parser = require('xml2json')
var sanitize = require('sanitize-filename')
var removeDiacritics = require('diacritics').remove
var HtmlEntities = require('html-entities').XmlEntities
var entities = new HtmlEntities()

// find the last xml file around here
var xml = _.last(ls('*.xml').sort())
if (!xml) {
  console.log('No blogger xml file to import from.')
  process.exit(1)
}

// and convert it to something less painful
xml = cat(xml)
var blog = parser.toJson(xml, {object: true})
var entries = _.get(blog, 'feed.entry')
var posts = _.filter(entries, entry => entry.id.indexOf('.post-') > -1)

// create easily parsable json structure from blogger trash
posts = posts.map(post => {
  var ret = {}
  ret.date = post.published.substr(0, 10)
  ret.tags = _.without(_.map(post.category, cat => cat.term.indexOf('/') > -1 ? '' : cat.term), '')
  ret.title = post.title.$t
  ret.body = post.content.$t
  return ret
})

// write markdown files
posts.forEach(post => {
  var niceName = entities.decode(post.title.replace(/^\d*@?\s?\|?\s?/, '').replace(/\//g, '-'))
  var fileName = post.date.replace(/-/g, '') + ' ' + niceName
  fileName = removeDiacritics(sanitize(fileName))
  fileName = fileName.replace(/\s+/g, ' ')
  var tags = _.map(post.tags.sort(), tag => `[${tag}]`).join(', ')
  var body = entities.decode(post.body)
  var md = dedent(`
    # ${niceName}
    ## ${tags}

    ${body}
  `)
  md.to(`./${fileName}.md`)
})