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Add a UnionSourceAccessor

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This commit is contained in:
Eelco Dolstra 2025-02-19 12:45:59 +01:00
parent c3d8799f9f
commit 5b7c240ebd
3 changed files with 89 additions and 0 deletions
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6
src/libutil/source-accessor.hh
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@ -216,4 +216,10 @@ ref<SourceAccessor> makeFSSourceAccessor(std::filesystem::path root);
ref<SourceAccessor> makeMountedSourceAccessor(std::map<CanonPath, ref<SourceAccessor>> mounts);
/**
* Construct an accessor that presents a "union" view of a vector of
* underlying accessors. Earlier accessors take precedence over later.
*/
ref<SourceAccessor> makeUnionSourceAccessor(std::vector<ref<SourceAccessor>> && accessors);
}