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-rw-r--r--nix/libstore/build.cc13
1 files changed, 8 insertions, 5 deletions
diff --git a/nix/libstore/build.cc b/nix/libstore/build.cc
index ea809c6971..20d83fea4a 100644
--- a/nix/libstore/build.cc
+++ b/nix/libstore/build.cc
@@ -2984,7 +2984,12 @@ void SubstitutionGoal::tryToRun()
if (!worker.substituter) {
const Strings args = { "substitute", "--substitute" };
- const std::map<string, string> env = { { "_NIX_OPTIONS", settings.pack() } };
+ const std::map<string, string> env = {
+ { "_NIX_OPTIONS",
+ settings.pack() + "deduplicate="
+ + (settings.autoOptimiseStore ? "yes" : "no")
+ }
+ };
worker.substituter = std::make_shared<Agent>(settings.guixProgram, args, env);
}
@@ -3085,10 +3090,8 @@ void SubstitutionGoal::finished()
if (repair) replaceValidPath(storePath, destPath);
- /* Note: 'guix substitute' takes care of resetting timestamps and
- permissions on 'destPath', so no need to do it here. */
-
- worker.store.optimisePath(storePath); // FIXME: combine with hashPath()
+ /* Note: 'guix substitute' takes care of resetting timestamps and of
+ deduplicating 'destPath', so no need to do it here. */
ValidPathInfo info2;
info2.path = storePath;