Minimize the usage of `Hash::dummy`

1 files changed, 11 insertions, 10 deletions

diff --git a/src/libstore/local-store.cc b/src/libstore/local-store.cc
index fc0630cae..c96db68ed 100644
--- a/src/libstore/local-store.cc
+++ b/src/libstore/local-store.cc
@@ -641,25 +641,28 @@ void LocalStore::queryPathInfoUncached(const StorePath & path,
     Callback<std::shared_ptr<const ValidPathInfo>> callback) noexcept
 {
     try {
-        auto info = std::make_shared<ValidPathInfo>(path);
-
         callback(retrySQLite<std::shared_ptr<ValidPathInfo>>([&]() {
             auto state(_state.lock());
 
             /* Get the path info. */
-            auto useQueryPathInfo(state->stmtQueryPathInfo.use()(printStorePath(info->path)));
+            auto useQueryPathInfo(state->stmtQueryPathInfo.use()(printStorePath(path)));
 
             if (!useQueryPathInfo.next())
                 return std::shared_ptr<ValidPathInfo>();
 
-            info->id = useQueryPathInfo.getInt(0);
+            auto id = useQueryPathInfo.getInt(0);
 
+            auto narHash = Hash::dummy;
             try {
-                info->narHash = Hash::parseAnyPrefixed(useQueryPathInfo.getStr(1));
+                narHash = Hash::parseAnyPrefixed(useQueryPathInfo.getStr(1));
             } catch (BadHash & e) {
-                throw Error("in valid-path entry for '%s': %s", printStorePath(path), e.what());
+                throw Error("invalid-path entry for '%s': %s", printStorePath(path), e.what());
             }
 
+            auto info = std::make_shared<ValidPathInfo>(path, narHash);
+
+            info->id = id;
+
             info->registrationTime = useQueryPathInfo.getInt(2);
 
             auto s = (const char *) sqlite3_column_text(state->stmtQueryPathInfo, 3);
@@ -1152,8 +1155,7 @@ StorePath LocalStore::addToStoreFromDump(Source & source0, const string & name,
 
             optimisePath(realPath);
 
-            ValidPathInfo info(dstPath);
-            info.narHash = narHash.first;
+            ValidPathInfo info { dstPath, narHash.first };
             info.narSize = narHash.second;
             info.ca = FixedOutputHash { .method = method, .hash = hash };
             registerValidPath(info);
@@ -1196,8 +1198,7 @@ StorePath LocalStore::addTextToStore(const string & name, const string & s,
 
             optimisePath(realPath);
 
-            ValidPathInfo info(dstPath);
-            info.narHash = narHash;
+            ValidPathInfo info { dstPath, narHash };
             info.narSize = sink.s->size();
             info.references = references;
             info.ca = TextHash { .hash = hash };