bun-info
Display Bun runtime information
TLDR
Display the package metadata
Display the specific version metadata
Show a specific property of a package
Output results in JSON format
SYNOPSIS
bun info
DESCRIPTION
bun info is a built-in diagnostic command of the Bun JavaScript runtime environment. It provides detailed metadata about the current Bun installation, essential for debugging, compatibility checks, and bug reporting.
The output includes key details such as:
• bunVersion: The exact version string (e.g., 1.1.3).
• buildCommit: Git commit hash of the build.
• arch and platform: Target CPU architecture and OS (e.g., x64 linux).
• libc: Runtime C library (e.g., glibc 2.35).
• TLS: Backend used (e.g., boringssl).
• Node.js compatibility version and various feature flags.
Formatted as human-readable YAML, it helps developers verify builds, detect mismatches, or script environment checks. No installation or arguments needed; runs instantly on any Bun-supported platform like Linux, macOS, or Windows.
Ideal for CI/CD pipelines, support tickets, or confirming Zig compiler version used in the build.
CAVEATS
Output is verbose and environment-specific; redirect to file for scripting (bun info > bun-info.yaml). Not available in all Bun versions pre-1.0.
TYPICAL OUTPUT SNIPPET
bunVersion: 1.1.3+df5aacb4
nodeVersion: 20.11.0
arch: x64
platform: linux
libc: glibc 2.35
HISTORY
Introduced in Bun 0.1.0 (September 2022) by Jarred Sumner. Evolved with Bun's rapid releases; output format stabilized in 1.0 (2024) to aid ecosystem adoption.
