Add a dummy Store::buildPaths() method

This default implementation of buildPaths() does nothing if all
requested paths are already valid, and throws an "unsupported
operation" error otherwise. This fixes a regression introduced by
c30330df6f67c81986dfb124631bc756c8e58c0d in binary cache and legacy
SSH stores.

1 files changed, 0 insertions, 9 deletions

diff --git a/src/libstore/legacy-ssh-store.cc b/src/libstore/legacy-ssh-store.cc
index befc560bfcec..de0562aef491 100644
--- a/src/libstore/legacy-ssh-store.cc
+++ b/src/libstore/legacy-ssh-store.cc
@@ -148,12 +148,6 @@ struct LegacySSHStore : public Store
         sink(*savedNAR.data);
     }
 
-    /* Unsupported methods. */
-    [[noreturn]] void unsupported()
-    {
-        throw Error("operation not supported on SSH stores");
-    }
-
     PathSet queryAllValidPaths() override { unsupported(); }
 
     void queryReferrers(const Path & path, PathSet & referrers) override
@@ -177,9 +171,6 @@ struct LegacySSHStore : public Store
         const PathSet & references, bool repair) override
     { unsupported(); }
 
-    void buildPaths(const PathSet & paths, BuildMode buildMode) override
-    { unsupported(); }
-
     BuildResult buildDerivation(const Path & drvPath, const BasicDerivation & drv,
         BuildMode buildMode) override
     { unsupported(); }