Add the helper.js file that I forgot to add earlier

import _ from 'lodash'
import * as Diff from 'diff'

const getDiffsFromPatchText = (patchText) => {
  if (debug) {
    console.log("PATCH TEXT")
    console.log(patchText)
  }
  const lines = patchText.split("\n")
  const hunks = []
  let previousHunk = -1
  lines.forEach((line, index) => {
    if (line.startsWith("hunk") || index === lines.length - 1) {
      if (debug) {
        console.log(`line starts with hunk: ${line.startsWith("hunk")}`)
        console.log(`index and lines.length are: ${index} ${lines.length}`)
      }
      if (previousHunk === -1) {
        previousHunk = index
        return
      }
      // get diff from previous hunk to this next one
      const lastHunk = lines.slice(previousHunk, index + 1) // slice is non-inclusive for the end argument
      let lastHunkBefore = lastHunk.filter(line => line.startsWith("-")).map(str => str.replace("-", "")).join("\n")
      let lastHunkAfter = lastHunk.filter(line => line.startsWith("+")).map(str => str.replace("+", "")).join("\n")
      lastHunkBefore = _.escape(lastHunkBefore)
      lastHunkAfter = _.escape(lastHunkAfter)
      const changeObject = Diff.diffWords(lastHunkBefore, lastHunkAfter)
      changeObject.forEach((obj) => {
        if (obj.added) {
          lastHunkAfter = lastHunkAfter.replace(obj.value, `<span class=green>${obj.value}</span>`)
        }
        if (obj.removed) {
          lastHunkBefore = lastHunkBefore.replace(obj.value, `<span class=red>${obj.value}</span>`)
        }
      })
      let filename = lines[previousHunk].replace("hunk ./", "")
      const regex = RegExp(/(.*) ([0-9]+)$/)
      const matches = filename.match(regex)
      hunks.push({
        file: `${matches[1]}:${matches[2]}`,
        before: lastHunkBefore,
        after: lastHunkAfter,
        changeObject,
      })
      previousHunk = index
    }
  })
  return hunks
}

export {
  getDiffsFromPatchText,
}