MergePreservationRegions

@aurorajs.dev/catalyst-cli

---

@aurorajs.dev/catalyst-cli / generator/engine/lock-file / mergePreservationRegions

Function: mergePreservationRegions()

mergePreservationRegions(newContent, existingContent, priorHashes?): MergeResult

Defined in: generator/engine/lock-file.ts:225

Merge preservation regions: per-region decision based on priorHashes.

• If the existing body hash matches priorHashes[name] → use newContent body (user did not modify → template improvement propagates).
• Otherwise → preserve existingContent body byte-for-byte.
• If priorHashes is undefined → preserve all (fallback, legacy lockfile).
• Regions only in newContent keep their new body.
• Regions only in existingContent are dropped (body lost).

Parameters

newContent

string

existingContent

string

priorHashes?

Record<string, string>

Returns

MergeResult