`install.cache.dir` completely ignored

[wojtekmaj]

What version of Bun is running?

1.0.5+1bf28e0d77a8b2261befbdb708cefd03e0126960

What platform is your computer?

Darwin 23.0.0 arm64 arm

What steps can reproduce the bug?

Create global .bunfig.toml with the following:

[install.cache]
dir = ".bun/cache"

And/or, create local bunfig.toml with the same contents

Run bun pm cache

What is the expected behavior?

install cache dir to be set to .bun/cache directory relative to project's root

What do you see instead?

install cache dir option completely ignored

Additional information

[uncenter]

I'm also seeing this:

[uncenter]

This issue seems like a duplicate of the more general #5636.

[LiamMartens]

This issue seems like a duplicate of the more general #5636.

This problem also appears using a local config. This problem prohibits Gitlab CI from persisting the cache across jobs without a workaround

[michelalbers]

Same issue here ... cannot use it in CI since the option is completely ignored.

[Leftium]

This env var works: BUN_INSTALL_CACHE_DIR (Windows + git bash; env var set via Windows settings.)

[SeanGriffin-Wellsky]

In case anyone wondered, the env var workaround mentioned above works for non-Windows as well (at least Mac, I'd assume Linux as well).

[jakubknejzlik]

It seems, that this also applies to --cache-dir option as running install with it ignores any value.

Quick test on macos:

$ bun pm cache --cache-dir .bun 
/Users/john.doe/.bun/install/cache

$ BUN_INSTALL_CACHE_DIR=.bun bun pm cache           
/Users/my/current/path/.bun

[ragavpr]

Tested valid config locations

• $HOME/.bunfig.toml
• $cwd/bunfig.toml (current working dir)

Current workaround

• The $BUN_INSTALL_CACHE_DIR environment variable can be set as mentioned in previous comments.
• Alternatively, just symlink the default ~/.bun dir to the required location (/somedir/.bun) in a different volume (still ext4), confirmed that hardlinks still do work in that same volume.