Fix garbage collection of CA derivations

Fix #4026
This commit is contained in:
regnat 2020-09-17 13:36:58 +02:00
parent 609a6d6d9f
commit 520895b1da
2 changed files with 9 additions and 3 deletions

View file

@ -574,9 +574,12 @@ bool LocalStore::canReachRoot(GCState & state, StorePathSet & visited, const Sto
/* If keep-derivations is set and this is a derivation, then
don't delete the derivation if any of the outputs are alive. */
if (state.gcKeepDerivations && path.isDerivation()) {
for (auto & i : queryDerivationOutputs(path))
if (isValidPath(i) && queryPathInfo(i)->deriver == path)
incoming.insert(i);
for (auto & [name, maybeOutPath] : queryPartialDerivationOutputMap(path))
if (maybeOutPath &&
isValidPath(*maybeOutPath) &&
queryPathInfo(*maybeOutPath)->deriver == path
)
incoming.insert(*maybeOutPath);
}
/* If keep-outputs is set, then don't delete this path if there

View file

@ -15,3 +15,6 @@ out1=$(nix-build "${commonArgs[@]}" ./content-addressed.nix --arg seed 1)
out2=$(nix-build "${commonArgs[@]}" ./content-addressed.nix --arg seed 2)
test $out1 == $out2
nix-instantiate --experimental-features ca-derivations ./content-addressed.nix -A rootCA --arg seed 5
nix-collect-garbage --experimental-features ca-derivations --option keep-derivations true