curl https://gist.githubusercontent.com/xream/519c29eff6e0760a51e673312a0f4c06/raw/a538f6904276fe3f4dcf7489195cc4875e043586/vue-beautifier.coffee -o ~/.atom/packages/atom-beautify/src/beautifiers/vue-beautifier.coffee

vue-beautifier.coffee

"use strict"
Beautifier = require('./beautifier')
prettydiff = require("prettydiff")
_ = require('lodash')

module.exports = class VueBeautifier extends Beautifier
  name: "Vue Beautifier"

  options:
    Vue: true

  beautify: (text, language, options) ->
    opt =
      brace_style: "collapse-preserve-inline"
      end_with_comma: true
      # end_with_newline: true
      indent_size: 2
      max_preserve_newlines: 2
      # preserve_newlines: false
      # insert_final_newline: false
    _.assign options, opt
    return new @Promise((resolve, reject) ->
      regexp = /(<(template|script|style)[^>]*>)((\s|\S)*?)<\/\2>/gi

      resolve(text.replace(regexp, (match, begin, type, text) ->
        lang = /lang\s*=\s*['"](\w+)["']/.exec(begin)?[1]

        switch type
          when "template"
            return match
            switch lang
              when "pug", "jade"
                match.replace(text, "\n" + require("pug-beautify")(text, options) + "\n")
              when undefined
                match.replace(text, "\n" + require("js-beautify").html(text, options) + "\n")
              else
                match
          when "script"
            match.replace(text, "\n" + require("js-beautify")(text, options) + "\n")
          when "style"
            return match
            switch lang
              when "sass", "scss"
                options = _.merge options,
                  source: text
                  lang: "scss"
                  mode: "beautify"
                match.replace(text, prettydiff.api(options)[0])
              when "less"
                options = _.merge options,
                source: text
                lang: "less"
                mode: "beautify"
                match.replace(text, prettydiff.api(options)[0])
              when undefined
                match.replace(text, "\n" + require("js-beautify").css(text, options) + "\n")
              else
                match
      ))
    )