Bun lockfile version: 2 (Bun 1.4.0/canary)

[ozturkberkay]

Verify canary release

• I verified that the issue exists in the latest Turborepo canary release.

Link to code that reproduces this issue

https://gist.github.com/ozturkberkay/78801494285afd1f8b6f6f0a8e72de09

Which canary version will you have in your reproduction?

2.9.18

Environment information

CLI:
   Version: 2.9.18
   Path to executable: /private/tmp/tb/node_modules/.bun/@turbo+darwin-arm64@2.9.18/node_modules/@turbo/darwin-arm64/bin/turbo
   Daemon status: Not running
   Package manager: bun

Platform:
   Architecture: aarch64
   Operating system: macos
   WSL: false
   Available memory (MB): 26916
   Available CPU cores: 16

Environment:
   CI: None
   AI agent: claude
   Terminal (TERM): xterm-ghostty
   Terminal program (TERM_PROGRAM): ghostty
   Terminal program version (TERM_PROGRAM_VERSION): 1.3.1
   Shell (SHELL): /bin/zsh
   stdin: false
   Node.js version: v26.3.1

Expected behavior

Turborepo parses Bun's bun.lock when it's at lockfileVersion: 2 and resolves the workspace graph from it successfully.

Actual behavior

Bun 1.4.0 (current canary) writes bun.lock with "lockfileVersion": 2 (+ "configVersion": 1). Both the latest stable turbo (2.9.18) and latest canary (2.9.19-canary.9) fail to parse it and lose the workspace graph. Bun 1.3.14 (lockfileVersion: 1) parses fine.

╰─ bunx turbo ls
• turbo 2.9.18
 WARNING  An issue occurred while attempting to parse /private/tmp/tb/bun.lock. Turborepo will still function, but some features may not be available:
   × Could not resolve workspaces.
  ╰─▶ Unsupported bun lockfile version: 2

1 package (bun)

  a packages/a

To Reproduce

# Create dummy project
mkdir /tmp/tb && cd /tmp/tb
cat > package.json <<'EOF'
{ "name": "root", "private": true, "packageManager": "bun@1.3.14",
  "workspaces": ["packages/*"], "devDependencies": { "turbo": "2.9.18" } }
EOF
echo '{ "tasks": { "build": {} } }' > turbo.json
mkdir -p packages/a && echo '{ "name": "a", "version": "0.0.0" }' > packages/a/package.json

# Install both stable and canary bun
curl -fsSL https://bun.sh/install | BUN_INSTALL=/tmp/bun-stable bash -s bun-v1.3.14
curl -fsSL https://bun.sh/install | BUN_INSTALL=/tmp/bun-canary bash -s canary

# Bun 1.3.14: OK
/tmp/bun-stable/bin/bun install
grep lockfileVersion bun.lock
bunx turbo ls

# Bun canary: NOK
rm -rf node_modules bun.lock
/tmp/bun-canary/bin/bun install
grep lockfileVersion bun.lock
bunx turbo ls
#   x Could not resolve workspaces.
#   `-> Unsupported bun lockfile version: 2

Additional context

This being unsupported is understandable/expected for now. Raising this early so a fix can land before 1.4.0 becomes stable.

[anthonyshew]

Hi, we handle feature requests in Discussions, so will move there.

[anthonyshew]

This was implemented in #13119.

[Viacheslav-Romanov]

How about nx support?

[anthonyshew]

This is the repository for Turborepo, so you're asking in the wrong place.