CLI: pnpm detection in a subdirectory of a mopnorepo does not work

[lkleen]

Description

The detection of the usage of pnpm is based on the assumption that there is a pnpm.lock.yaml file in the same directory as the cdktf configuration. In a monorepo project which has a separate folder for infrastructure code this is not the case. pnpm usage is not correctly detected as the pnpm lock file is located in the root directory of the project by default.

I would suggest to avoid automatic detection based on assumptions and add a packageManager parameter to cdktf.json. This would ensure the correct package manager is utilized in every case and provides a clearly spcified and visible configuration. It would also simplify the implementation.

References

https://github.com/hashicorp/terraform-cdk/pull/2959/commits/69b13becd5244bac348cd0e7b39ef02144ccf2e5#

Help Wanted

• [X] I'm interested in contributing a fix myself

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[DanielMSchmidt]

I would suggest to avoid automatic detection based on assumptions and add a packageManager parameter to cdktf.json.

I would fear this adding a point of confusion since it is one more thing people could misconfigure. I'd vote for fixing the bug at hand and see if similar issues arise in the future.