Move path info caching from BinaryCacheStore to Store

Caching path info is generally useful. For instance, it speeds up "nix
path-info -rS /run/current-system" (i.e. showing the closure sizes of
all paths in the closure of the current system) from 5.6s to 0.15s.

This also eliminates some APIs like Store::queryDeriver() and
Store::queryReferences().

1 files changed, 2 insertions, 8 deletions

diff --git a/src/libstore/remote-store.hh b/src/libstore/remote-store.hh
index 45bc41804ccf..4ea8e8a5be4d 100644
--- a/src/libstore/remote-store.hh
+++ b/src/libstore/remote-store.hh
@@ -26,22 +26,16 @@ public:
 
     /* Implementations of abstract store API methods. */
 
-    bool isValidPath(const Path & path) override;
+    bool isValidPathUncached(const Path & path) override;
 
     PathSet queryValidPaths(const PathSet & paths) override;
 
     PathSet queryAllValidPaths() override;
 
-    ValidPathInfo queryPathInfo(const Path & path) override;
-
-    Hash queryPathHash(const Path & path) override;
-
-    void queryReferences(const Path & path, PathSet & references) override;
+    std::shared_ptr<ValidPathInfo> queryPathInfoUncached(const Path & path) override;
 
     void queryReferrers(const Path & path, PathSet & referrers) override;
 
-    Path queryDeriver(const Path & path) override;
-
     PathSet queryValidDerivers(const Path & path) override;
 
     PathSet queryDerivationOutputs(const Path & path) override;