diffs-to-string

Turns an array of diffs into a string. You can generate a changes stream by using sorted-diff-stream.

basic example

var diffs2string = require('diffs-to-string')

var changes = [
  [ { country: 'germany', capital: null },
    { country: 'germany', code: 'de', capital: 'berlin' } ],
  [ { country: 'ireland', capital: 'dublin' },
    { country: 'ireland', code: 'ie', capital: 'dublin' } ],
  [ { country: 'france', capital: 'paris' },
    { country: null, code: 'fr', capital: 'paris'} ],
  [ { country: 'spain', capital: 'madrid' },
    { country: 'spain', code: 'es', capital: 'barcelona' } ]
]

var visual = diffs2string(changes)
console.log(visual)

Outputs:

row 1
    country: germany
  + capital: berlin
  + code: de
row 2
    country: ireland
    capital: dublin
  + code: ie
row 3
  - country: france
    capital: paris
  + code: fr
row 4
    country: spain
  ? capital: madrid -> barcelona
  + code: es

with streams

var diffs2string = require('diffs-to-string').stream
var diffStream = from.obj(changes)

diffStream.pipe(diffs2string())

custom row path and row header

function getRowValue (row) {
  return row.value
}

function getRowHeader (diff) {
  return 'this is row ' + diff['some-value'] + '\n'
}

var opts = {
  getRowValue: getRowValue,
  getRowHeader: getRowHeader
}

diffStream.pipe(diffs2string.stream(opts))
var visual = diffs2string(changes, opts)