fix(arborist): propagate overrides through Link nodes to targets#9254
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owlstronaut merged 1 commit intorelease/v11from Apr 22, 2026
Merged
fix(arborist): propagate overrides through Link nodes to targets#9254owlstronaut merged 1 commit intorelease/v11from
owlstronaut merged 1 commit intorelease/v11from
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In continuation of our exploration of using `install-strategy=linked` in the [Gutenberg monorepo](WordPress/gutenberg#75814), which powers the WordPress Block Editor. When using `install-strategy=linked`, npm overrides for transitive dependencies were ignored. The overridden version was installed but reported as `invalid` instead of `overridden`, and with `strict-peer-deps` the install failed entirely with `ERESOLVE`. The root cause is that override propagation stops at Link nodes and never reaches their targets. Overrides propagate through the tree via `addEdgeIn` -> `updateOverridesEdgeInAdded` -> `recalculateOutEdgesOverrides`. When a Link node receives overrides, `recalculateOutEdgesOverrides` iterates over `this.edgesOut` — but Links have no `edgesOut` (their targets do). So overrides never reach the target node's dependency edges, and those edges use `rawSpec` instead of the overridden spec. In the linked strategy, all packages in `node_modules/` are Links pointing to targets in `.store/`. This meant no overrides propagated past the first level of the dependency tree. The fix overrides `recalculateOutEdgesOverrides` in the `Link` class to forward overrides to the target node. When `buildIdealTree` creates a root Link (e.g. on macOS where `/tmp` -> `/private/tmp`), the target Node is now created with `loadOverrides: true` so it loads override rules from `package.json`. The `#applyRootOverridesToWorkspaces` workaround method is removed — it was compensating for this exact bug by detaching workspace edges whose specs didn't match. With proper propagation, workspace edges already have the correct overridden spec, making the workaround dead code. ## References Fixes #9197 (cherry picked from commit bc32d94)
wraithgar
approved these changes
Apr 17, 2026
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Backport of #9198 to
release/v11.