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create cache entry for paths already in the nix store

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This allows path:/nix/store/* paths to not be copied twice to the nix
store.

(cherry picked from commit 61c6210dbf)
This commit is contained in:
Jörg Thalheim 2025-04-03 13:27:39 +02:00
parent f02ce07682
commit 82a47978db
3 changed files with 31 additions and 7 deletions
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4
src/libfetchers/fetch-to-store.hh
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@ -5,6 +5,7 @@
#include "file-system.hh"
#include "repair-flag.hh"
#include "file-content-address.hh"
#include "cache.hh"
namespace nix {
@ -22,4 +23,7 @@ StorePath fetchToStore(
PathFilter * filter = nullptr,
RepairFlag repair = NoRepair);
fetchers::Cache::Key makeFetchToStoreCacheKey(
const std::string & name, const std::string & fingerprint, ContentAddressMethod method, const std::string & path);
}