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1d130492d7
fetchToStore() caching was broken because it uses the fingerprint of the accessor, but now that the accessor (typically storeFS) is a composite (like MountedSourceAccessor or AllowListSourceAccessor), there was no fingerprint anymore. So fetchToStore now uses the new getFingerprint() method to get the specific fingerprint for the subpath.
46 lines
1.4 KiB
C++
46 lines
1.4 KiB
C++
#include "nix/store/store-api.hh"
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#include "nix/expr/eval.hh"
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#include "nix/util/mounted-source-accessor.hh"
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#include "nix/fetchers/fetch-to-store.hh"
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namespace nix {
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SourcePath EvalState::rootPath(CanonPath path)
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{
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return {rootFS, std::move(path)};
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}
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SourcePath EvalState::rootPath(PathView path)
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{
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return {rootFS, CanonPath(absPath(path))};
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}
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SourcePath EvalState::storePath(const StorePath & path)
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{
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return {rootFS, CanonPath{store->printStorePath(path)}};
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}
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StorePath
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EvalState::mountInput(fetchers::Input & input, const fetchers::Input & originalInput, ref<SourceAccessor> accessor)
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{
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auto storePath = fetchToStore(fetchSettings, *store, accessor, FetchMode::Copy, input.getName());
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allowPath(storePath); // FIXME: should just whitelist the entire virtual store
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storeFS->mount(CanonPath(store->printStorePath(storePath)), accessor);
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auto narHash = store->queryPathInfo(storePath)->narHash;
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input.attrs.insert_or_assign("narHash", narHash.to_string(HashFormat::SRI, true));
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if (originalInput.getNarHash() && narHash != *originalInput.getNarHash())
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throw Error(
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(unsigned int) 102,
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"NAR hash mismatch in input '%s', expected '%s' but got '%s'",
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originalInput.to_string(),
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narHash.to_string(HashFormat::SRI, true),
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originalInput.getNarHash()->to_string(HashFormat::SRI, true));
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return storePath;
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}
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} // namespace nix
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