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Create a second Store::getFSAccessor for a single store object

This is sometimes easier / more performant to implement, and
independently it is also a more convenient interface for many callers.

The existing store-wide `getFSAccessor` is only used for

 - `nix why-depends`
 - the evaluator

I hope we can get rid of it for those, too, and then we have the option
of getting rid of the store-wide method.

Co-authored-by: Sergei Zimmerman <sergei@zimmerman.foo>
This commit is contained in:
John Ericson 2025-09-22 14:49:29 -04:00
parent 0175f7e836
commit a97d6d89d8
26 changed files with 125 additions and 57 deletions

View file

@ -3,7 +3,6 @@
#include "nix/util/source-path.hh"
#include "nix/fetchers/fetch-to-store.hh"
#include "nix/util/json-utils.hh"
#include "nix/fetchers/store-path-accessor.hh"
#include "nix/fetchers/fetch-settings.hh"
#include <nlohmann/json.hpp>
@ -332,7 +331,8 @@ std::pair<ref<SourceAccessor>, Input> Input::getAccessorUnchecked(ref<Store> sto
debug("using substituted/cached input '%s' in '%s'", to_string(), store->printStorePath(storePath));
auto accessor = makeStorePathAccessor(store, storePath);
// We just ensured the store object was there
auto accessor = ref{store->getFSAccessor(storePath)};
accessor->fingerprint = getFingerprint(store);