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Fix rootFS fingerprint in the impure case

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This commit is contained in:
Eelco Dolstra 2025-06-16 19:34:28 +02:00
parent 5329a45ade
commit a175c67def
1 changed files with 12 additions and 0 deletions
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12
src/libutil/union-source-accessor.cc
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@ -72,6 +72,18 @@ struct UnionSourceAccessor : SourceAccessor
} }
return std::nullopt; return std::nullopt;
} }
std::pair<CanonPath, std::optional<std::string>> getFingerprint(const CanonPath & path) override
{
if (fingerprint)
return {path, fingerprint};
for (auto & accessor : accessors) {
auto [subpath, fingerprint] = accessor->getFingerprint(path);
if (fingerprint)
return {subpath, fingerprint};
}
return {path, std::nullopt};
}
}; };
ref<SourceAccessor> makeUnionSourceAccessor(std::vector<ref<SourceAccessor>> && accessors) ref<SourceAccessor> makeUnionSourceAccessor(std::vector<ref<SourceAccessor>> && accessors)