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feat(arborist): add lockfileString() for in-memory lockfile generation - #9282
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owlstronaut
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May 4, 2026
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ljharbforce-pushed
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b683513CompareExposes a public method on the Arborist class that builds (or reuses) an ideal tree, commits the shrinkwrap metadata, and returns the lockfile contents as a string without writing to disk. This makes a previously-undocumented sequence (`buildIdealTree()` -> `tree.meta.commit()` -> `String(tree.meta)`) a discoverable, supported API, enabling callers to inspect, diff, or store generated lockfiles without mutating the project's package-lock.json.
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🎉 Backport to |
jdalton
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May 5, 2026
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Noice! Thank you @ljharb! |
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Exposes a public method on the Arborist class that builds (or reuses) an ideal tree, commits the shrinkwrap metadata, and returns the lockfile contents as a string without writing to disk.
This makes a previously-undocumented sequence (
buildIdealTree()->tree.meta.commit()->String(tree.meta)) a discoverable, supported API, enabling callers to inspect, diff, or store generated lockfiles without mutating the project's package-lock.json.(specifically, this is the only thing i need to be able to completely EOL https://npmjs.com/npm-lockfile)