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Diffstat (limited to 'src/libstore/store-api.cc')
| -rw-r--r-- | src/libstore/store-api.cc | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/libstore/store-api.cc b/src/libstore/store-api.cc index b47376e5594a..b9939feda477 100644 --- a/src/libstore/store-api.cc +++ b/src/libstore/store-api.cc @@ -312,6 +312,9 @@ void Store::exportPaths(const Paths & paths, std::string ValidPathInfo::fingerprint() const { + if (narSize == 0 || narHash.type == htUnknown) + throw Error(format("cannot calculate fingerprint of path ‘%s’ because its size/hash is not known") + % path); return "1;" + path + ";" + printHashType(narHash.type) + ":" + printHash32(narHash) + ";" |