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Merge pull request #4732 from NixOS/4725-always-register-the-realisations

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Aways register the realisations
This commit is contained in:
Eelco Dolstra 2021-04-23 14:22:03 +02:00 committed by GitHub
commit 4549d65b4f
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3 changed files with 40 additions and 15 deletions
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11
src/libcmd/installables.cc
View file

@ -736,19 +736,10 @@ std::set<RealisedPath> toRealisedPaths(
output.first);
auto outputId = DrvOutput{outputHashes.at(output.first), output.first};
auto realisation = store->queryRealisation(outputId);
if (!realisation) {
// TODO: remove this check once #4725 is fixed
// as we’ll have the guaranty that if
// `output.second` exists, then the realisation
// will be there too
if (output.second)
res.insert(*output.second);
else
if (!realisation)
throw Error("cannot operate on an output of unbuilt content-addresed derivation '%s'", outputId.to_string());
} else {
res.insert(RealisedPath{*realisation});
}
}
else {
// If ca-derivations isn't enabled, behave as if
// all the paths are opaque to keep the default

15
src/libstore/build/derivation-goal.cc
View file

@ -1269,12 +1269,23 @@ void DerivationGoal::checkPathValidity()
};
}
if (settings.isExperimentalFeatureEnabled("ca-derivations")) {
if (auto real = worker.store.queryRealisation(
DrvOutput{initialOutputs.at(i.first).outputHash, i.first})) {
auto drvOutput = DrvOutput{initialOutputs.at(i.first).outputHash, i.first};
if (auto real = worker.store.queryRealisation(drvOutput)) {
info.known = {
.path = real->outPath,
.status = PathStatus::Valid,
};
} else if (info.known && info.known->status == PathStatus::Valid) {
// We know the output because it' a static output of the
// derivation, and the output path is valid, but we don't have
// its realisation stored (probably because it has been built
// without the `ca-derivations` experimental flag)
worker.store.registerDrvOutput(
Realisation{
drvOutput,
info.known->path,
}
);
}
}
}

25
tests/ca/substitute.sh
View file

@ -8,7 +8,8 @@ sed -i 's/experimental-features .*/& ca-derivations ca-references/' "$NIX_CONF_D
rm -rf $TEST_ROOT/binary_cache
export REMOTE_STORE=file://$TEST_ROOT/binary_cache
export REMOTE_STORE_DIR=$TEST_ROOT/binary_cache
export REMOTE_STORE=file://$REMOTE_STORE_DIR
buildDrvs () {
nix build --file ./content-addressed.nix -L --no-link "$@"
@ -22,3 +23,25 @@ buildDrvs --post-build-hook ../push-to-store.sh
clearStore
buildDrvs --substitute --substituters $REMOTE_STORE --no-require-sigs -j0
# Same thing, but
# 1. With non-ca derivations
# 2. Erasing the realisations on the remote store
#
# Even in that case, realising the derivations should still produce the right
# realisations on the local store
#
# Regression test for #4725
clearStore
nix build --file ../simple.nix -L --no-link --post-build-hook ../push-to-store.sh
clearStore
rm -r "$REMOTE_STORE_DIR/realisations"
nix build --file ../simple.nix -L --no-link --substitute --substituters "$REMOTE_STORE" --no-require-sigs -j0
# There's no easy way to check whether a realisation is present on the local
# store − short of manually querying the db, but the build environment doesn't
# have the sqlite binary − so we instead push things again, and check that the
# realisations have correctly been pushed to the remote store
nix copy --to "$REMOTE_STORE" --file ../simple.nix
if [[ -z "$(ls "$REMOTE_STORE_DIR/realisations")" ]]; then
echo "Realisations not rebuilt"
exit 1
fi