Keep a Change Log

❗ Disclaimer

This project is not actively maintained or monitored. Feel free to fork and work on it in your account. If you want to maintain but also collaborate with fellow developers, feel free to reach out to Contentful's Developer Relations team to move the project into our community GitHub organisation contentful-userland.

---

Parse, modify, and create change logs in the “Keep a Changelog” format.

Usage

var changelog = require('keepachangelog')

changelog.read('CHANGELOG.md')
.then(function (cl) {
  var upcoming = cl.getRelease('upcoming');
  upcoming.Added.push('An amazing *new* feature');
  return cl;
}).then(function (cl) {
  cl.addUpcomingChange('This thing changed a bit');
  return cl;
}).then(function (cl) {
  return cl.write('CHANGELOG.md');
})

All asynchronous functions return Bluebird promises.

changelog.parse(content)

Return a Changelog instance which is a structured representation of the content string. The content must be Markdown source following the conventions of the “Keep a Changelog” format.

changelog.read(path)

Promise a Changelog instance by parsing the content of a file.

Changelog

A Changelog instance is a structured representation of a Change Log file. The following is an example of the properties a Changelog has.

{
  prelude:  [Markdown JsonML],
  epilogue: [Markdown JsonML],
  releases: [
    {
      version: 'upcoming'
      Changed: ['A *markdown* string', 'Another markdown string'],
      Added: ['...'],
      Removed: ['...']
    }, {
      version: '1.0.0'
      Changed: ['...'],
    }
  ]
}

The [Markdown JsonML] values refer to objects that are returned by the Markdown parser

Changelog.build()

Serialize the changelog structure into a markdown string.

Changelog.write(path)

Write the Markdown string returned by #build() to a file and return a promise.

Changelog.addUpcomingChange(desc)

Add an item to the list of changes in the upcoming release. desc must be a string. It is added verbatim to the rendered Change Log and might therefore contain any valid Markdown.

Changelog.getRelease(version)

Find an object in Changelog.releases with the matching version and return a reference to it. Returns null if no matching release was found.