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libstore: fix build tests

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the new event loop could very occasionally notice that a dependency of
some goal has failed, process the failure, cause the depending goal to
fail accordingly, and in the doing of the latter two steps let further
dependencies that previously have not been reported as failed do their
reporting anyway. in such cases a goal could fail with "1 dependencies
failed", but more than one dependency failure message was shown. we'll
now report the correct number of failed dependency goals in all cases.

Change-Id: I5aa95dcb2db4de4fd5fee8acbf5db833531d81a8
This commit is contained in:
eldritch horrors 2024-09-28 23:18:35 +02:00
parent 3f7519526f
commit 1a52e4f755
2 changed files with 14 additions and 10 deletions
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14
src/libstore/build/goal.cc
View file

@ -33,17 +33,21 @@ kj::Promise<Result<Goal::WorkResult>>
Goal::waitForGoals(kj::Array<std::pair<GoalPtr, kj::Promise<void>>> dependencies) noexcept
try {
auto left = dependencies.size();
auto collectDeps = asyncCollect(std::move(dependencies));
while (auto item = co_await collectDeps.next()) {
for (auto & [dep, p] : dependencies) {
p = p.then([this, dep, &left] {
left--;
auto & dep = *item;
trace(fmt("waitee '%s' done; %d left", dep->name, left));
if (dep->exitCode != Goal::ecSuccess) ++nrFailed;
if (dep->exitCode == Goal::ecNoSubstituters) ++nrNoSubstituters;
if (dep->exitCode == Goal::ecIncompleteClosure) ++nrIncompleteClosure;
}).eagerlyEvaluate(nullptr);
}
auto collectDeps = asyncCollect(std::move(dependencies));
while (auto item = co_await collectDeps.next()) {
auto & dep = *item;
waiteeDone(dep);

6
tests/functional/build.sh
View file

@ -167,9 +167,9 @@ test "$(<<<"$out" grep -E '^error:' | wc -l)" = 4
out="$(nix build -f fod-failing.nix -L x4 2>&1)" && status=0 || status=$?
test "$status" = 1
test "$(<<<"$out" grep -E '^error:' | wc -l)" = 2
<<<"$out" grepQuiet -E "error: 1 dependencies of derivation '.*-x4\\.drv' failed to build"
<<<"$out" grepQuiet -E "hash mismatch in fixed-output derivation '.*-x2\\.drv'"
test "$(<<<"$out" grep -E '^error:' | wc -l)" -ge 2
<<<"$out" grepQuiet -E "error: [12] dependencies of derivation '.*-x4\\.drv' failed to build"
<<<"$out" grepQuiet -E "hash mismatch in fixed-output derivation '.*-x[23]\\.drv'"
out="$(nix build -f fod-failing.nix -L x4 --keep-going 2>&1)" && status=0 || status=$?
test "$status" = 1