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Remove support for Hydra aggregate jobs

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This might be a somewhat useful feature for Hydra, but not for a generic Nix evaluator.
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adisbladis 2021-08-24 13:47:30 -05:00
parent 174e735183
commit a4441fe1c8
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1 changed files with 0 additions and 68 deletions
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68
src/nix-eval-jobs.cc
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@ -196,31 +196,6 @@ static void worker(
}
job["meta"] = meta;
/* If this is an aggregate, then get its constituents. */
auto a = v->attrs->get(state.symbols.create("_hydraAggregate"));
if (a && state.forceBool(*a->value, *a->pos)) {
auto a = v->attrs->get(state.symbols.create("constituents"));
if (!a)
throw EvalError("derivation must have a ‘constituents’ attribute");
PathSet context;
state.coerceToString(*a->pos, *a->value, context, true, false);
for (auto & i : context)
if (i.at(0) == '!') {
size_t index = i.find("!", 1);
job["constituents"].push_back(string(i, index + 1));
}
state.forceList(*a->value, *a->pos);
for (unsigned int n = 0; n < a->value->listSize(); ++n) {
auto v = a->value->listElems()[n];
state.forceValue(*v);
if (v->type() == nString)
job["namedConstituents"].push_back(state.forceStringNoCtx(*v));
}
}
/* Register the derivation as a GC root. !!! This
registers roots for jobs that we may have already
done. */
@ -466,49 +441,6 @@ int main(int argc, char * * argv)
if (state->exc)
std::rethrow_exception(state->exc);
/* For aggregate jobs that have named consistuents
(i.e. constituents that are a job name rather than a
derivation), look up the referenced job and add it to the
dependencies of the aggregate derivation. */
auto store = openStore();
for (auto i = state->jobs.begin(); i != state->jobs.end(); ++i) {
auto jobName = i.key();
auto & job = i.value();
auto named = job.find("namedConstituents");
if (named == job.end()) continue;
auto drvPath = store->parseStorePath((std::string) job["drvPath"]);
auto drv = store->readDerivation(drvPath);
for (std::string jobName2 : *named) {
auto job2 = state->jobs.find(jobName2);
if (job2 == state->jobs.end())
throw Error("aggregate job '%s' references non-existent job '%s'", jobName, jobName2);
auto drvPath2 = store->parseStorePath((std::string) (*job2)["drvPath"]);
auto drv2 = store->readDerivation(drvPath2);
job["constituents"].push_back(store->printStorePath(drvPath2));
drv.inputDrvs[drvPath2] = {drv2.outputs.begin()->first};
}
std::string drvName(drvPath.name());
assert(hasSuffix(drvName, drvExtension));
drvName.resize(drvName.size() - drvExtension.size());
auto h = std::get<Hash>(hashDerivationModulo(*store, drv, true));
auto outPath = store->makeOutputPath("out", h, drvName);
drv.env["out"] = store->printStorePath(outPath);
drv.outputs.insert_or_assign("out", DerivationOutput { .output = DerivationOutputInputAddressed { .path = outPath } });
auto newDrvPath = store->printStorePath(writeDerivation(*store, drv));
debug("rewrote aggregate derivation %s -> %s", store->printStorePath(drvPath), newDrvPath);
job["drvPath"] = newDrvPath;
job["outputs"]["out"] = store->printStorePath(outPath);
job.erase("namedConstituents");
}
std::cout << state->jobs.dump(2) << "\n";
});
}