flake.nix: update to nixos-25.11

And squashes eval warnings from accessing pkgs.hostPlatform.

flake.lock

@@ -3,16 +3,16 @@
     "nix": {
       "flake": false,
       "locked": {
-        "lastModified": 1759956402,
-        "narHash": "sha256-CM27YK+KMi3HLRXqjPaJwkTabmKW+CDXOE3kMMtXH3s=",
+        "lastModified": 1760573252,
+        "narHash": "sha256-mcvNeNdJP5R7huOc8Neg0qZESx/0DMg8Fq6lsdx0x8U=",
         "owner": "NixOS",
         "repo": "nix",
-        "rev": "3019db2c87006817b6201113ad4ceee0c53c3b62",
+        "rev": "3c39583e5512729f9c5a44c3b03b6467a2acd963",
         "type": "github"
       },
       "original": {
         "owner": "NixOS",
-        "ref": "2.31-maintenance",
+        "ref": "2.32-maintenance",
         "repo": "nix",
         "type": "github"
       }
@@ -20,32 +20,32 @@
     "nix-eval-jobs": {
       "flake": false,
       "locked": {
-        "lastModified": 1757626891,
-        "narHash": "sha256-VrHPtHxVIboqgnw+tlCQepgtBOhBvU5hxbMHsPo8LAc=",
+        "lastModified": 1760478325,
+        "narHash": "sha256-hA+NOH8KDcsuvH7vJqSwk74PyZP3MtvI/l+CggZcnTc=",
         "owner": "nix-community",
         "repo": "nix-eval-jobs",
-        "rev": "c975efc5b2bec0c1ff93c67de4a03306af258ff7",
+        "rev": "daa42f9e9c84aeff1e325dd50fda321f53dfd02c",
         "type": "github"
       },
       "original": {
         "owner": "nix-community",
-        "ref": "v2.31.0",
+        "ref": "v2.32.1",
         "repo": "nix-eval-jobs",
         "type": "github"
       }
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1759652726,
-        "narHash": "sha256-2VjnimOYDRb3DZHyQ2WH2KCouFqYm9h0Rr007Al/WSA=",
+        "lastModified": 1764020296,
+        "narHash": "sha256-6zddwDs2n+n01l+1TG6PlyokDdXzu/oBmEejcH5L5+A=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "06b2985f0cc9eb4318bf607168f4b15af1e5e81d",
+        "rev": "a320ce8e6e2cc6b4397eef214d202a50a4583829",
         "type": "github"
       },
       "original": {
         "owner": "NixOS",
-        "ref": "nixos-25.05-small",
+        "ref": "nixos-25.11-small",
         "repo": "nixpkgs",
         "type": "github"
       }

flake.nix

@@ -1,16 +1,16 @@
 {
   description = "A Nix-based continuous build system";
 
-  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.05-small";
+  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.11-small";
 
   inputs.nix = {
-    url = "github:NixOS/nix/2.31-maintenance";
+    url = "github:NixOS/nix/2.32-maintenance";
     # We want to control the deps precisely
     flake = false;
   };
 
   inputs.nix-eval-jobs = {
-    url = "github:nix-community/nix-eval-jobs/v2.31.0";
+    url = "github:nix-community/nix-eval-jobs/v2.32.1";
     # We want to control the deps precisely
     flake = false;
   };
@@ -59,7 +59,7 @@
 
         manual = forEachSystem (system: let
           pkgs = nixpkgs.legacyPackages.${system};
-          hydra = self.packages.${pkgs.hostPlatform.system}.hydra;
+          hydra = self.packages.${pkgs.stdenv.hostPlatform.system}.hydra;
         in
           pkgs.runCommand "hydra-manual-${hydra.version}" { }
             ''

nixos-modules/default.nix

@@ -4,7 +4,7 @@
   hydra = { pkgs, lib,... }: {
     _file = ./default.nix;
     imports = [ ./hydra.nix ];
-    services.hydra-dev.package = lib.mkDefault self.packages.${pkgs.hostPlatform.system}.hydra;
+    services.hydra-dev.package = lib.mkDefault self.packages.${pkgs.stdenv.hostPlatform.system}.hydra;
   };
 
   hydraTest = { pkgs, ... }: {

package.nix

@@ -31,7 +31,7 @@
 , perl
 , pixz
 , boost
-, postgresql_13
+, postgresql_17
 , nlohmann_json
 , prometheus-cpp
 
@@ -192,7 +192,7 @@ stdenv.mkDerivation (finalAttrs: {
     subversion
     breezy
     openldap
-    postgresql_13
+    postgresql_17
     pixz
     nix-eval-jobs
   ];

src/hydra-queue-runner/build-remote.cc

@@ -14,6 +14,7 @@
 #include <nix/util/current-process.hh>
 #include <nix/util/processes.hh>
 #include <nix/util/util.hh>
+#include <nix/store/export-import.hh>
 #include <nix/store/serve-protocol.hh>
 #include <nix/store/serve-protocol-impl.hh>
 #include <nix/store/ssh.hh>
@@ -104,7 +105,7 @@ static void copyClosureTo(
         std::chrono::seconds(600));
 
     conn.to << ServeProto::Command::ImportPaths;
-    destStore.exportPaths(missing, conn.to);
+    exportPaths(destStore, missing, conn.to);
     conn.to.flush();
 
     if (readInt(conn.from) != 1)
@@ -262,16 +263,18 @@ static BuildResult performBuild(
         // Since this a `BasicDerivation`, `staticOutputHashes` will not
         // do any real work.
         auto outputHashes = staticOutputHashes(localStore, drv);
-        for (auto & [outputName, output] : drvOutputs) {
-            auto outputPath = output.second;
-            // We’ve just asserted that the output paths of the derivation
-            // were known
-            assert(outputPath);
-            auto outputHash = outputHashes.at(outputName);
-            auto drvOutput = DrvOutput { outputHash, outputName };
-            result.builtOutputs.insert_or_assign(
-                std::move(outputName),
-                Realisation { drvOutput, *outputPath });
+        if (auto * successP = result.tryGetSuccess()) {
+            for (auto & [outputName, output] : drvOutputs) {
+                auto outputPath = output.second;
+                // We’ve just asserted that the output paths of the derivation
+                // were known
+                assert(outputPath);
+                auto outputHash = outputHashes.at(outputName);
+                auto drvOutput = DrvOutput { outputHash, outputName };
+                successP->builtOutputs.insert_or_assign(
+                    std::move(outputName),
+                    Realisation { drvOutput, *outputPath });
+            }
         }
     }
 
@@ -336,54 +339,68 @@ void RemoteResult::updateWithBuildResult(const nix::BuildResult & buildResult)
     startTime = buildResult.startTime;
     stopTime = buildResult.stopTime;
     timesBuilt = buildResult.timesBuilt;
-    errorMsg = buildResult.errorMsg;
-    isNonDeterministic = buildResult.isNonDeterministic;
 
-    switch ((BuildResult::Status) buildResult.status) {
-        case BuildResult::Built:
+    std::visit(overloaded{
+        [&](const BuildResult::Success & success) {
             stepStatus = bsSuccess;
-            break;
-        case BuildResult::Substituted:
-        case BuildResult::AlreadyValid:
-            stepStatus = bsSuccess;
-            isCached = true;
-            break;
-        case BuildResult::PermanentFailure:
-            stepStatus = bsFailed;
-            canCache = true;
-            errorMsg = "";
-            break;
-        case BuildResult::InputRejected:
-        case BuildResult::OutputRejected:
-            stepStatus = bsFailed;
-            canCache = true;
-            break;
-        case BuildResult::TransientFailure:
-            stepStatus = bsFailed;
-            canRetry = true;
-            errorMsg = "";
-            break;
-        case BuildResult::TimedOut:
-            stepStatus = bsTimedOut;
-            errorMsg = "";
-            break;
-        case BuildResult::MiscFailure:
-            stepStatus = bsAborted;
-            canRetry = true;
-            break;
-        case BuildResult::LogLimitExceeded:
-            stepStatus = bsLogLimitExceeded;
-            break;
-        case BuildResult::NotDeterministic:
-            stepStatus = bsNotDeterministic;
-            canRetry = false;
-            canCache = true;
-            break;
-        default:
-            stepStatus = bsAborted;
-            break;
-    }
-
+            switch (success.status) {
+                case BuildResult::Success::Built:
+                    break;
+                case BuildResult::Success::Substituted:
+                case BuildResult::Success::AlreadyValid:
+                case BuildResult::Success::ResolvesToAlreadyValid:
+                    isCached = true;
+                    break;
+                default:
+                    assert(false);
+            }
+        },
+        [&](const BuildResult::Failure & failure) {
+            errorMsg = failure.errorMsg;
+            isNonDeterministic = failure.isNonDeterministic;
+            switch (failure.status) {
+                case BuildResult::Failure::PermanentFailure:
+                    stepStatus = bsFailed;
+                    canCache = true;
+                    errorMsg = "";
+                    break;
+                case BuildResult::Failure::InputRejected:
+                case BuildResult::Failure::OutputRejected:
+                    stepStatus = bsFailed;
+                    canCache = true;
+                    break;
+                case BuildResult::Failure::TransientFailure:
+                    stepStatus = bsFailed;
+                    canRetry = true;
+                    errorMsg = "";
+                    break;
+                case BuildResult::Failure::TimedOut:
+                    stepStatus = bsTimedOut;
+                    errorMsg = "";
+                    break;
+                case BuildResult::Failure::MiscFailure:
+                    stepStatus = bsAborted;
+                    canRetry = true;
+                    break;
+                case BuildResult::Failure::LogLimitExceeded:
+                    stepStatus = bsLogLimitExceeded;
+                    break;
+                case BuildResult::Failure::NotDeterministic:
+                    stepStatus = bsNotDeterministic;
+                    canRetry = false;
+                    canCache = true;
+                    break;
+                case BuildResult::Failure::CachedFailure:
+                case BuildResult::Failure::DependencyFailed:
+                case BuildResult::Failure::NoSubstituters:
+                case BuildResult::Failure::HashMismatch:
+                    stepStatus = bsAborted;
+                    break;
+                default:
+                    assert(false);
+            }
+        },
+    }, buildResult.inner);
 }
 
 /* Utility guard object to auto-release a semaphore on destruction. */
@@ -405,7 +422,7 @@ void State::buildRemote(ref<Store> destStore,
     std::function<void(StepState)> updateStep,
     NarMemberDatas & narMembers)
 {
-    assert(BuildResult::TimedOut == 8);
+    assert(BuildResult::Failure::TimedOut == 8);
 
     auto [logFile, logFD] = build_remote::openLogFile(logDir, step->drvPath);
     AutoDelete logFileDel(logFile, false);
@@ -514,7 +531,7 @@ void State::buildRemote(ref<Store> destStore,
 
         updateStep(ssBuilding);
 
-        BuildResult buildResult = build_remote::performBuild(
+        auto buildResult = build_remote::performBuild(
             conn,
             *localStore,
             step->drvPath,
@@ -556,8 +573,9 @@ void State::buildRemote(ref<Store> destStore,
         wakeDispatcher();
 
         StorePathSet outputs;
-        for (auto & [_, realisation] : buildResult.builtOutputs)
-            outputs.insert(realisation.outPath);
+        if (auto * successP = buildResult.tryGetSuccess())
+            for (auto & [_, realisation] : successP->builtOutputs)
+                outputs.insert(realisation.outPath);
 
         /* Copy the output paths. */
         if (!machine->isLocalhost() || localStore != std::shared_ptr<Store>(destStore)) {
@@ -590,15 +608,17 @@ void State::buildRemote(ref<Store> destStore,
         /* Register the outputs of the newly built drv */
         if (experimentalFeatureSettings.isEnabled(Xp::CaDerivations)) {
             auto outputHashes = staticOutputHashes(*localStore, *step->drv);
-            for (auto & [outputName, realisation] : buildResult.builtOutputs) {
-                // Register the resolved drv output
-                destStore->registerDrvOutput(realisation);
+            if (auto * successP = buildResult.tryGetSuccess()) {
+                for (auto & [outputName, realisation] : successP->builtOutputs) {
+                    // Register the resolved drv output
+                    destStore->registerDrvOutput(realisation);
 
-                // Also register the unresolved one
-                auto unresolvedRealisation = realisation;
-                unresolvedRealisation.signatures.clear();
-                unresolvedRealisation.id.drvHash = outputHashes.at(outputName);
-                destStore->registerDrvOutput(unresolvedRealisation);
+                    // Also register the unresolved one
+                    auto unresolvedRealisation = realisation;
+                    unresolvedRealisation.signatures.clear();
+                    unresolvedRealisation.id.drvHash = outputHashes.at(outputName);
+                    destStore->registerDrvOutput(unresolvedRealisation);
+                }
             }
         }
 

src/lib/Hydra/Plugin/GithubRefs.pm

@@ -18,9 +18,8 @@ tags) from GitHub following a certain naming scheme
 
 =head1 DESCRIPTION
 
-This plugin reads the list of branches or tags using GitHub's REST API. The name
-of the reference must follow a particular prefix. This list is stored in the
-nix-store and used as an input to declarative jobsets.
+This plugin reads the list of branches or tags using GitHub's REST API. This
+list is stored in the nix-store and used as an input to declarative jobsets.
 
 =head1 CONFIGURATION
 
@@ -34,7 +33,7 @@ The declarative project C<spec.json> file must contains an input such as
 
    "pulls": {
      "type": "github_refs",
-     "value": "[owner] [repo] heads|tags - [prefix]",
+     "value": "[owner] [repo] [type] - [prefix]",
      "emailresponsible": false
    }
 
@@ -42,12 +41,11 @@ In the above snippet, C<[owner]> is the repository owner and C<[repo]> is the
 repository name. Also note a literal C<->, which is placed there for the future
 use.
 
-C<heads|tags> denotes that one of these two is allowed, that is, the third
-position should hold either the C<heads> or the C<tags> keyword. In case of the former, the plugin
-will fetch all branches, while in case of the latter, it will fetch the tags.
+C<[type]> is the type of ref to list. Typical values are "heads", "tags", and
+"pull". "." will include all types.
 
 C<prefix> denotes the prefix the reference name must start with, in order to be
-included.
+included. "." will include all references.
 
 For example, C<"value": "nixos hydra heads - release/"> refers to
 L<https://github.com/nixos/hydra> repository, and will fetch all branches that
@@ -102,8 +100,6 @@ sub fetchInput {
     return undef if $input_type ne "github_refs";
 
     my ($owner, $repo, $type, $fut, $prefix) = split ' ', $value;
-    die "type field is neither 'heads' nor 'tags', but '$type'"
-        unless $type eq 'heads' or $type eq 'tags';
 
     my $auth = $self->{config}->{github_authorization}->{$owner};
     my $githubEndpoint = $self->{config}->{github_endpoint} // "https://api.github.com";