oven-sh/bun

node:process.initgroups is not yet implemented

Open

#23891 opened on Oct 21, 2025

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 (2 comments) (0 reactions) (0 assignees)Rust (90,348 stars) (4,486 forks)batch import
bugconfirmed buggood first issuenode:process

Description

What version of Bun is running?

1.3.1-canary.103+7750afa29

What platform is your computer?

Darwin 24.5.0 arm64 arm

What steps can reproduce the bug?

❯ node -p 'process.initgroups'
[Function: initgroups]

❯ bun -p 'process.initgroups'
undefined

What is the expected behavior?

No response

What do you see instead?

No response

Additional information

http://nodejs.org/api/process.html#processinitgroupsuser-extragroup

Contributor guide

Tech stack
javascript
Domain
backend
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
Basic knowledge of Node.js process APIFamiliarity with POSIX systems programming
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
40
Research direction
Examine Bun's source code for existing process methods like process.getgroups and process.setgroups. Implement process.initgroups by binding to the POSIX initgroups() system call, handling errors appropriately. Ensure the function signature matches Node.js: (user, extraGroup). Add tests in the test suite. Check any comments on the issue for additional guidance.