Automatically generate change log from your tags, issues, labels and pull requests on GitHub.
Fully automated changelog generation - This gem generates a changelog file based on tags, issues and merged pull requests (and splits them into separate lists according to labels) from :octocat: GitHub.
Since you don't have to fill your
CHANGELOG.mdmanually now: just run the script, relax and take a cup of :coffee: before your next release! :tada:
To make it easier for users and contributors to see precisely what notable changes have been made between each release (or version) of the project.
Because software tools are for people. "Changelogs make it easier for users and contributors to see precisely what notable changes have been made between each release (or version) of the project."
Install the gem like:
$ gem install github_changelog_generator
Depending on your system, you may need to run the shell as an Administrator (Windows), or use
sudo gem install github_changelog_generator(Linux).
github_changelog_generator -u github_project_namespace -p github_project
(where the project namespace is likely your username if it's a project you own, but it could also be the namespace of the project)
Using Docker is an alternative to installing Ruby and the gem.
$ docker run -it --rm -v "$(pwd)":/usr/local/src/your-app githubchangeloggenerator/github-changelog-generator
For GitHub Enterprise repos, specify both
$ githubchangeloggenerator --github-site="https://github.yoursite.com" \ --github-api="https://github.yoursite.com/api/v3/"
This generates a
CHANGELOG.md, with pretty Markdown formatting.
ActionSheetPicker-3.0/CHANGELOG.md was generated by command:
$ githubchangeloggenerator -u github-changelog-generator -p ActionSheetPicker-3.0
In general, it looks like this:
- Use milestone to specify in which version bug was fixed #22
- Error when trying to generate log for repo without tags #32
Merged pull requests:
Print help for all command-line options to learn more details:
$ github_changelog_generator --help
For more details about params, read the Wiki page: Advanced changelog generation examples
In your project root, you can put a params file named
.github_changelog_generatorto override default params:
unreleased=false future-release=5.0.0 since-tag=1.0.0
GitHub only allows 50 unauthenticated requests per hour.
Therefore, it's recommended to run this script with authentication by using a token.
CHANGELOG_GITHUB_TOKENenvironment variable to your 40 digit token
You can set an environment variable by running the following command at the prompt, or by adding it to your shell profile (e.g.,
So, if you get a message like this:
API rate limit exceeded for github_username. See: https://developer.github.com/v3/#rate-limiting
It's time to create this token! (Or, wait an hour for GitHub to reset your unauthenticated request limit.)
Knowing how dedicated you are to your project, you probably haven't been waiting for
github-changelog-generatorto keep a changelog. But you probably don't want your project's open issues and PRs for all past features listed in your historic changelog, either.
--basecomes in handy! This option lets append your old manual changelog to the end of the generated entries.
If you have a
HISTORY.mdfile in your project, it will automatically be picked as the static historical changelog and appended.
rake? We do, too! So, we've made it even easier for you: we've provided a
raketask library for your changelog generation.
Configure the task in your
GitHubChangelogGenerator::RakeTask.new :changelog do |config| config.user = 'username' config.project = 'project-name' config.since_tag = '0.1.14' config.future_release = '0.2.0' end
All command-line options can be passed to the
configparameters. And since you're naming the
raketask yourself, you can create as many as you want.
You can look for params names from the parser source code (#setup_parser). For example, to translate the bugs label to Portuguese, instead of setting
config.bugs_label, you have to set
config.bug_prefix, and so on.
milestonethe same name as the tag of version :pushpin:
Distinguish issues by labels. :mag_right:
Manually include or exclude issues by labels :wrench:
Customize lots more! Tweak the changelog to fit your preferences :tophat: (See
github_changelog_generator --helpfor details)
For each version, you can add a release summary with text, images, gif animations, etc, and show new features and notes clearly to the user. This is done using GitHub metadata.
Example: adding the release summary for v1.0.0:
Hello, World! :tada: ``
3. Set the Issue Labelrelease-summary
and add it to the GitHub Milestonev1.0.0
4. Close the Issue and executegithub-changelog-generator` 5. The result looks like this:
Hello, World! :tada:
Implemented enhancements: - Add some features
Here is a wikipage list of alternatives that I found. But none satisfied my requirements.
If you know other projects, feel free to edit this Wiki page!
Here's a wikipage list of projects.
If you've used this project in a live app, please let me know! Nothing makes me happier than seeing someone else take my work and go wild with it.
If you are using
github_changelog_generatorto generate your project's changelog, or know of other projects using it, please add it to this list.
Nothing is impossible!
Open an issue and let's make the generator better together!
Bug reports, feature requests, patches, and well-wishes are always welcome. :heavyexclamationmark:
GitHub Releases is a very good thing. And it's very good practice to maintain it. (Not a lot of people are using it yet!) :congratulations:
BTW: I would like to support GitHub Releases in next releases ;)
I'm not trying to compare the quality of handwritten and auto-generated logs. That said....
An auto-generated changelog really helps, even if you manually fill in the release notes!
When your Ruby is old, and you don't want to upgrade, and you want to control which libraries you use, you can use Bundler.
In a Gemfile, perhaps in a non-deployed
:developmentgroup, add this gem:
group :development do gem 'github_changelog_generator', require: false end
Then you can keep back dependencies like rack, which currently is only compatible with Ruby >= 2.2.2. So, use an older version for your app by adding a line like this to the Gemfile:
gem 'rack', '~> 1.6'
This way, you can keep on using githubchangeloggenerator, even if you can't get the latest version of Ruby installed.
Workaround: Create a
Would you like to contribute to this project? CONTRIBUTING.md has all the details on how to do that.
GitHub Changelog Generator is released under the MIT License.