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Split out UnkeyedRealisation from Realisation

Browse source 
Realisations are conceptually key-value pairs, mapping `DrvOutputs` (the
key) to information about that derivation output.

This separate the value type, which will be useful in maps, etc., where
we don't want to denormalize by including the key twice.

This matches similar changes for existing types:

| keyed              | unkeyed                |
|--------------------|------------------------|
| `ValidPathInfo`    | `UnkeyedValidPathInfo` |
| `KeyedBuildResult` | `BuildResult`          |
| `Realisation`      | `UnkeyedRealisation`   |

Co-authored-by: Sergei Zimmerman <sergei@zimmerman.foo>
This commit is contained in:
John Ericson 2025-09-24 00:06:47 -04:00
parent a543519ca9
commit 6995d325ef
28 changed files with 363 additions and 251 deletions
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10
src/libstore/build/drv-output-substitution-goal.cc
View file

@ -42,10 +42,10 @@ Goal::Co DrvOutputSubstitutionGoal::init()
outPipe->createAsyncPipe(worker.ioport.get());
#endif
auto promise = std::make_shared<std::promise<std::shared_ptr<const Realisation>>>();
auto promise = std::make_shared<std::promise<std::shared_ptr<const UnkeyedRealisation>>>();
sub->queryRealisation(
id, {[outPipe(outPipe), promise(promise)](std::future<std::shared_ptr<const Realisation>> res) {
id, {[outPipe(outPipe), promise(promise)](std::future<std::shared_ptr<const UnkeyedRealisation>> res) {
try {
Finally updateStats([&]() { outPipe->writeSide.close(); });
promise->set_value(res.get());
@ -74,7 +74,7 @@ Goal::Co DrvOutputSubstitutionGoal::init()
* The realisation corresponding to the given output id.
* Will be filled once we can get it.
*/
std::shared_ptr<const Realisation> outputInfo;
std::shared_ptr<const UnkeyedRealisation> outputInfo;
try {
outputInfo = promise->get_future().get();
@ -131,7 +131,7 @@ Goal::Co DrvOutputSubstitutionGoal::init()
}
Goal::Co DrvOutputSubstitutionGoal::realisationFetched(
Goals waitees, std::shared_ptr<const Realisation> outputInfo, nix::ref<nix::Store> sub)
Goals waitees, std::shared_ptr<const UnkeyedRealisation> outputInfo, nix::ref<nix::Store> sub)
{
waitees.insert(worker.makePathSubstitutionGoal(outputInfo->outPath));
@ -144,7 +144,7 @@ Goal::Co DrvOutputSubstitutionGoal::realisationFetched(
co_return amDone(nrNoSubstituters > 0 ? ecNoSubstituters : ecFailed);
}
worker.store.registerDrvOutput(*outputInfo);
worker.store.registerDrvOutput({*outputInfo, id});
trace("finished");
co_return amDone(ecSuccess);