use strict; use warnings; use Setup; use Data::Dumper; use Test2::V0; my $ctx = test_context( use_external_destination_store => 1 ); # This test is regarding https://github.com/NixOS/hydra/pull/1126 # # A hydra instance was regularly failing to build derivations with: # # possibly transient failure building ‘/nix/store/X.drv’ on ‘localhost’: # dependency '/nix/store/Y' of '/nix/store/Y.drv' does not exist, # and substitution is disabled # # However it would only fail when building on localhost, and it would only # fail if the build output was already in the binary cache. # # This test replicates this scenario by having two jobs, underlyingJob and # dependentJob. dependentJob depends on underlyingJob. We first build # underlyingJob and copy it to an external cache. Then forcefully delete # the output of underlyingJob, and build dependentJob. In order to pass # it must either rebuild underlyingJob or fetch it from the cache. subtest "Building, caching, and then garbage collecting the underlying job" => sub { my $builds = $ctx->makeAndEvaluateJobset( expression => "dependencies/underlyingOnly.nix", build => 1 ); my $path = $builds->{"underlyingJob"}->buildoutputs->find({ name => "out" })->path; ok(unlink(Hydra::Helper::Nix::gcRootFor($path)), "Unlinking the GC root for underlying Dependency succeeds"); (my $ret, my $stdout, my $stderr) = captureStdoutStderr(1, "nix-store", "--delete", $path); is($ret, 0, "Deleting the underlying dependency should succeed"); }; subtest "Building the dependent job should now succeed, even though we're missing a local dependency" => sub { my $builds = $ctx->makeAndEvaluateJobset( expression => "dependencies/dependentOnly.nix" ); ok(runBuild($builds->{"dependentJob"}), "building the job should succeed"); }; done_testing;