diff options
Diffstat (limited to 'src/libexpr/primops.cc')
| -rw-r--r-- | src/libexpr/primops.cc | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/src/libexpr/primops.cc b/src/libexpr/primops.cc index 0d4efc47e6d6..7258c4cc0fa9 100644 --- a/src/libexpr/primops.cc +++ b/src/libexpr/primops.cc @@ -51,6 +51,12 @@ static void prim_import(EvalState & state, Value * * args, Value & v) % path % ctx); if (isDerivation(ctx)) try { + /* For performance, prefetch all substitute info. */ + PathSet willBuild, willSubstitute, unknown; + unsigned long long downloadSize, narSize; + queryMissing(*store, singleton<PathSet>(ctx), + willBuild, willSubstitute, unknown, downloadSize, narSize); + /* !!! If using a substitute, we only need to fetch the selected output of this derivation. */ store->buildPaths(singleton<PathSet>(ctx)); @@ -617,7 +623,7 @@ static void prim_toFile(EvalState & state, Value * * args, Value & v) refs.insert(path); } - Path storePath = readOnlyMode + Path storePath = settings.readOnlyMode ? computeStorePathForText(name, contents, refs) : store->addTextToStore(name, contents, refs); @@ -681,7 +687,7 @@ static void prim_filterSource(EvalState & state, Value * * args, Value & v) FilterFromExpr filter(state, *args[0]); - Path dstPath = readOnlyMode + Path dstPath = settings.readOnlyMode ? computeStorePathForPath(path, true, htSHA256, filter).first : store->addToStore(path, true, htSHA256, filter); @@ -1073,7 +1079,7 @@ void EvalState::createBaseEnv() mkInt(v, time(0)); addConstant("__currentTime", v); - mkString(v, thisSystem.c_str()); + mkString(v, settings.thisSystem.c_str()); addConstant("__currentSystem", v); // Miscellaneous |