https://github.com/danger/danger

🚫 Stop saying "you forgot to …" in code review (in Ruby)
https://github.com/danger/danger

Keywords

automation bitbucket ci circle code-review danger github gitlab travis

Keywords from Contributors

deployment apps fastlane screenshots activerecord rubocop code-formatter static-code-analysis activejob mvc

Last synced: about 7 hours ago
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Repository metadata

🚫 Stop saying "you forgot to …" in code review (in Ruby)

Host: GitHub
URL: https://github.com/danger/danger
Owner: danger
License: mit
Created: 2015-09-29T05:54:39.000Z (about 10 years ago)
Default Branch: master
Last Pushed: 2025-11-24T00:04:42.000Z (16 days ago)
Last Synced: 2025-12-08T03:53:49.003Z (2 days ago)
Topics: automation, bitbucket, ci, circle, code-review, danger, github, gitlab, travis
Language: Ruby
Homepage: https://danger.systems
Size: 3.35 MB
Stars: 5,616
Watchers: 45
Forks: 491
Open Issues: 167
Releases: 128
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- License: LICENSE

Danger 🚫

Formalize your Pull Request etiquette.

What is Danger?

Danger runs during your CI process, and gives teams the chance to automate common code review chores.

This provides another logical step in your process, through this Danger can help lint your rote tasks in daily code review.

You can use Danger to codify your teams norms. Leaving humans to think about harder problems.

For example?

You can:

Enforce CHANGELOGs
Enforce links to Trello/JIRA in PR/MR bodies
Enforce using descriptive labels
Look out for common anti-patterns
Highlight interesting build artifacts
Give specific files extra focus

Danger provides the glue to let you build out the rules specific to your team's culture, offering useful metadata and a comprehensive plugin system to share common issues.

Getting Started

Alright. So, actually, you may be in the wrong place. From here on in, this README is going to be for people who are interested in working on and improving on Danger.

We keep all of the end-user documentation at https://danger.systems.

Some quick links: Guides Index, DSL Reference, Getting Started and What does Danger Do?.

I'm here to help out!

Brilliant. So, let's get you set up.

git clone https://github.com/danger/danger.git
cd danger
bundle install
bundle exec rake spec

This sets everything up and runs all of the tests.

Theory

Danger has a VISION.md file, which sums up the ideas around what Danger is. It is the lower bounds of what Danger means. Orta has written on handling and creating Danger on the Artsy blog, too.

Documentation

The code you write may end up in the public part of the website — the easiest way to tell is that it is vastly overdocumented. If you are working in a space that looks over-documented, please be extra considerate to add documentation. We expect the consumers of that documentation to be non-rubyists, thus you should avoid specific jargon and try to provide duplicate overlapping examples.

Testing

So far, we've not really figured out the right way to make tests for our CLI commands. When we have done so, they've ended up being brittle. So, ideally, try to move any logic that would go into a command into separate classes, and test those. We're okay with the command not having coverage, but ideally the classes that make up what it does will.

I'd strongly recommend using bundle exec guard to run your tests as you work. Any changes you make in the lib, or specs will have corresponding tests run instantly.

Debugging

Ruby is super dynamic. One of the best ways to debug Ruby code is by using pry. We include pry for developers: when you have a problem, copy these two lines just before your problem and follow the instructions from "I Want To Be A Danger Wizard."

require 'pry'
binding.pry

License, Contributor's Guidelines and Code of Conduct

We try to keep as much discussion as possible in GitHub issues, but also have a pretty inactive Slack --- if you'd like an invite, ping @Orta a DM on Twitter with your email. It's mostly interesting if you want to stay on top of Danger without all the emails from GitHub.

This project is open source under the MIT license, which means you have full access to the source code and can modify it to fit your own needs.

This project subscribes to the Moya Contributors Guidelines which TLDR: means we give out push access easily and often.

Contributors subscribe to the Contributor Code of Conduct based on the Contributor Covenant version 1.3.0.

Owner metadata

Name: Danger
Login: danger
Email:
Kind: organization
Description: Stop saying "You forgot to..."
Website: http://danger.systems
Location: GitHub
Twitter:
Company:
Icon url: https://avatars.githubusercontent.com/u/17147106?v=4
Repositories: 27
Last ynced at: 2024-04-11T14:54:24.370Z
Profile URL: https://github.com/danger

GitHub Events

Total

Create event: 4
Issues event: 12
Release event: 3
Watch event: 147
Delete event: 1
Issue comment event: 31
Push event: 14
Pull request review event: 29
Pull request review comment event: 10
Pull request event: 37
Fork event: 17

Last Year

Create event: 3
Release event: 2
Issues event: 8
Watch event: 119
Delete event: 1
Issue comment event: 23
Push event: 13
Pull request review comment event: 3
Pull request event: 35
Pull request review event: 24
Fork event: 15

Committers metadata

Last synced: 4 days ago

Total Commits: 2,190
Total Committers: 257
Avg Commits per committer: 8.521
Development Distribution Score (DDS): 0.759

Commits in past year: 39
Committers in past year: 7
Avg Commits per committer in past year: 5.571
Development Distribution Score (DDS) in past year: 0.564

Name	Email	Commits
Orta Therox	o**x@g**m	527
KrauseFx	K**x@g**m	189
Juanito Fatas	k**0@g**m	105
Ryosuke Ito	r**5@g**m	77
Hannes Kaeufler	h**r@g**m	66
Marcelo Fabri	m**f@g**m	61
Telyn Z	1****n	49
ydah	t**2@g**m	42
David Grandinetti	d**i@y**m	34
Anton Domashnev	a**v@g**m	32
Bott Sebastian	B**n@J**m	30
Michał Kałużny	m**u@j**g	23
Reece Dunham	me@r****s	21
Jeroen Visser	j**1@g**m	18
Pierre-Marc Airoldi	p**i@g**m	18
Hugo Tunius	h**s@g**m	18
Mathieu Rul	m**e@g**m	17
Damien DANGLARD	d**d@c**m	16
Jakub Kaspar	k**k@g**m	15
Henryk Ratajczak	h**k@a**l	15
RonaldPrithiv	3****v	15
Takuma Homma	n**a@g**m	15
Juanito Fatas	j**s@c**p	15
Alex Ghiculescu	a**x@t**o	14
Samuel Giddins	s**s@s**e	14
Lukyanov Fedor	l**a@g**m	13
Fahmi Sidik	f**6@g**m	13
Juan Pablo Civile	j**e@m**m	12
Steffen Matthischke	s**e@l**m	12
giginet	g**t@g**m	11
and 227 more...

Committer domains:

Issue and Pull Request metadata

Last synced: 5 days ago

Total issues: 101
Total pull requests: 131
Average time to close issues: 11 months
Average time to close pull requests: 2 months
Total issue authors: 90
Total pull request authors: 45
Average comments per issue: 3.46
Average comments per pull request: 1.25
Merged pull request: 97
Bot issues: 0
Bot pull requests: 7

Past year issues: 9
Past year pull requests: 34
Past year average time to close issues: 8 days
Past year average time to close pull requests: 17 days
Past year issue authors: 9
Past year pull request authors: 8
Past year average comments per issue: 1.0
Past year average comments per pull request: 0.65
Past year merged pull request: 25
Past year bot issues: 0
Past year bot pull requests: 1

More stats: https://issues.ecosyste.ms/repositories/lookup?url=https://github.com/danger/danger

Top Issue Authors

manicmaniac (4)
rogerluan (2)
mcoe-git (2)
jkmathew (2)
rymai (2)
lukeredpath (2)
Ernest0-Production (2)
Vacxe (2)
jaymzh (2)
etherz10 (1)
apps4everyone (1)
okatatuki (1)
josete89 (1)
gbero (1)
AlexandreOkita (1)

Top Pull Request Authors

manicmaniac (36)
ydah (26)
dependabot[bot] (7)
mathroule (4)
eiskrenkov (3)
kemchenj (2)
okatatuki (2)
dirtyhabits97 (2)
jguttman94 (2)
iangmaia (2)
murilooon (2)
simonfelding (2)
tomhughes (2)
koic (2)
ojab (2)

Top Issue Labels

Enhancement (11)
Bug (11)
You Can Do This (9)
GitLab (5)
BitBucket (4)
Question (3)
GitHub (3)
Breaking Change (1)
Help Wanted (1)
Drone (1)
Invalid (1)
GitLab CI (1)
Wontfix (1)
Duplicate (1)

Top Pull Request Labels

dependencies (7)
Breaking Change (3)
GitHub (2)
github_actions (1)

Package metadata

Total packages: 9
Total downloads:
- rubygems: 302,893,057 total
Total docker downloads: 1,769,616,582
Total dependent packages: 77 (may contain duplicates)
Total dependent repositories: 3,611 (may contain duplicates)
Total versions: 660
Total maintainers: 7

gem.coop: danger

Stop Saying 'You Forgot To…' in Code Review

Homepage: https://github.com/danger/danger
Documentation: http://www.rubydoc.info/gems/danger/
Licenses: MIT
Latest release: 9.5.3 (published 5 months ago)
Last Synced: 2025-12-08T23:01:23.557Z (1 day ago)
Versions: 188
Dependent Packages: 0
Dependent Repositories: 0
Downloads: 110,740,337 Total
Docker Downloads: 449,699,449
Rankings:
- Dependent repos count: 0.0%
- Dependent packages count: 0.0%
- Average: 0.119%
- Downloads: 0.228%
- Docker downloads count: 0.247%
Maintainers (5)

gem.coop: danger-gitlab

Stop Saying 'You Forgot To…' in Code Review with GitLab

Homepage: http://github.com/danger/danger
Documentation: http://www.rubydoc.info/gems/danger-gitlab/
Licenses: MIT
Latest release: 10.0.0 (published 5 months ago)
Last Synced: 2025-12-07T21:32:04.245Z (2 days ago)
Versions: 11
Dependent Packages: 0
Dependent Repositories: 0
Downloads: 40,696,163 Total
Docker Downloads: 435,108,842
Rankings:
- Dependent repos count: 0.0%
- Dependent packages count: 0.0%
- Average: 0.217%
- Docker downloads count: 0.283%
- Downloads: 0.584%
Maintainers (2)
- orta
- k0nserv

rubygems.org: danger