BinaryCacheStore: Remove publicKeyFile argument

The public key can be derived from the secret key, so there's no need
for the user to supply it separately.

1 files changed, 3 insertions, 6 deletions

diff --git a/src/libstore/binary-cache-store.cc b/src/libstore/binary-cache-store.cc
index 01d937f2e..5ded16d02 100644
--- a/src/libstore/binary-cache-store.cc
+++ b/src/libstore/binary-cache-store.cc
@@ -14,16 +14,13 @@
 namespace nix {
 
 BinaryCacheStore::BinaryCacheStore(std::shared_ptr<Store> localStore,
-    const Path & secretKeyFile, const Path & publicKeyFile)
+    const Path & secretKeyFile)
     : localStore(localStore)
 {
-    if (secretKeyFile != "")
+    if (secretKeyFile != "") {
         secretKey = std::unique_ptr<SecretKey>(new SecretKey(readFile(secretKeyFile)));
-
-    if (publicKeyFile != "") {
         publicKeys = std::unique_ptr<PublicKeys>(new PublicKeys);
-        auto key = PublicKey(readFile(publicKeyFile));
-        publicKeys->emplace(key.name, key);
+        publicKeys->emplace(secretKey->name, secretKey->toPublicKey());
     }
 
     StringSink sink;