Yarn.Lock.Helpers

Freshly parsed Lockfiles are often not directly usable e.g. because they still can contain cycles. This module provides helpers for modifying them.

Documentation

decycle :: HasCallStack => Lockfile -> Lockfile

Takes a Lockfile and removes dependency cycles.

Node packages often contain those and the yarn lockfile does not yet eliminate them, which may lead to infinite recursions.

Invariant: Every dependency entry in each package in the Lockfile *must* point to an existing key, otherwise the function crashes.