oven-sh/bun

window bun process.env.HOME is undefined

Open

#10502 opened on Apr 25, 2024

View on GitHub
 (3 comments) (0 reactions) (0 assignees)Rust (90,348 stars) (4,486 forks)batch import
buggood first issue

Description

What version of Bun is running?

No response

What platform is your computer?

No response

What steps can reproduce the bug?

bun add pm2 bunx pm2-runtime index.cjs path join arg is undefined

reason process.env.HOME is undefined , but nodejs process.env.HOME is user root dir

What is the expected behavior?

No response

What do you see instead?

No response

Additional information

No response

Contributor guide

Tech stack
javascripttypescriptnodejs
Domain
backendtooling
Issue type
bug
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.
mostly clear
Prerequisites
Windows environmentprocess.env and environment variables
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
55
Research direction
Investigate how Bun implements process.env, focusing on Windows. In Node.js, process.env.HOME is typically set to %USERPROFILE% on Windows, but Bun may not be mapping it. Check the Bun source code, particularly the process environment initialization in src/js/internal/process.js or the Rust side in src/sys. Explore if there is a fallback to USERPROFILE or other Windows environment variables. The issue reporter mentions that nodejs works, so the fix likely involves replicating Node's behavior on Windows.