Merge branch 'alois31-fix-build'

Commit 8088927b90ff84dd37c342e1ef0a91bc8feca6ec renamed initGC to initLibExpr.
Use the new name so that the build works again.

flake.lock

@@ -23,11 +23,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1717285511,
-        "narHash": "sha256-iKzJcpdXih14qYVcZ9QC9XuZYnPc6T8YImb6dX166kw=",
+        "lastModified": 1730504689,
+        "narHash": "sha256-hgmguH29K2fvs9szpq2r3pz2/8cJd2LPS+b4tfNFCwE=",
         "owner": "hercules-ci",
         "repo": "flake-parts",
-        "rev": "2a55567fcf15b1b1c7ed712a2c6fadaec7412ea8",
+        "rev": "506278e768c2a08bec68eb62932193e341f55c90",
         "type": "github"
       },
       "original": {
@@ -47,17 +47,15 @@
         "pre-commit-hooks": "pre-commit-hooks"
       },
       "locked": {
-        "lastModified": 1718228457,
-        "narHash": "sha256-vGumESUGu/jo2Lm5bha/xBsJKVlb1wuclXlL9xudRp4=",
-        "ref": "refs/heads/main",
-        "rev": "f46194faa2fc9c78250702c8eb7a4b756e0bd944",
-        "revCount": 15757,
-        "type": "git",
-        "url": "https://git@git.lix.systems/lix-project/lix"
+        "lastModified": 1731683711,
+        "narHash": "sha256-bq21I1EjXJa/s5Rra9J9ot2NkPCnI0F5uNPurwYLdpE=",
+        "rev": "c859d03013712b349d82ee6223948d6d03e63a8d",
+        "type": "tarball",
+        "url": "https://git.lix.systems/api/v1/repos/lix-project/lix/archive/c859d03013712b349d82ee6223948d6d03e63a8d.tar.gz?rev=c859d03013712b349d82ee6223948d6d03e63a8d"
       },
       "original": {
-        "type": "git",
-        "url": "https://git@git.lix.systems/lix-project/lix"
+        "type": "tarball",
+        "url": "https://git.lix.systems/lix-project/lix/archive/main.tar.gz"
       }
     },
     "nix-github-actions": {
@@ -67,11 +65,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1703863825,
-        "narHash": "sha256-rXwqjtwiGKJheXB43ybM8NwWB8rO2dSRrEqes0S7F5Y=",
+        "lastModified": 1729742964,
+        "narHash": "sha256-B4mzTcQ0FZHdpeWcpDYPERtyjJd/NIuaQ9+BV1h+MpA=",
         "owner": "nix-community",
         "repo": "nix-github-actions",
-        "rev": "5163432afc817cf8bd1f031418d1869e4c9d5547",
+        "rev": "e04df33f62cdcf93d73e9a04142464753a16db67",
         "type": "github"
       },
       "original": {
@@ -83,11 +81,11 @@
     "nix2container": {
       "flake": false,
       "locked": {
-        "lastModified": 1712990762,
-        "narHash": "sha256-hO9W3w7NcnYeX8u8cleHiSpK2YJo7ecarFTUlbybl7k=",
+        "lastModified": 1724996935,
+        "narHash": "sha256-njRK9vvZ1JJsP8oV2OgkBrpJhgQezI03S7gzskCcHos=",
         "owner": "nlewo",
         "repo": "nix2container",
-        "rev": "20aad300c925639d5d6cbe30013c8357ce9f2a2e",
+        "rev": "fa6bb0a1159f55d071ba99331355955ae30b3401",
         "type": "github"
       },
       "original": {
@@ -98,16 +96,16 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1718132686,
-        "narHash": "sha256-JRinkq+FeAkYnrrK8+Bh+jtLHJBN5jDzSimk1ye00EE=",
+        "lastModified": 1731663789,
+        "narHash": "sha256-x07g4NcqGP6mQn6AISXJaks9sQYDjZmTMBlKIvajvyc=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "96b3dae4f8753c1f5ce0d06b57fe250fb5d9b0e0",
+        "rev": "035d434d48f4375ac5d3a620954cf5fda7dd7c36",
         "type": "github"
       },
       "original": {
         "owner": "NixOS",
-        "ref": "nixos-23.11-small",
+        "ref": "nixos-24.05-small",
         "repo": "nixpkgs",
         "type": "github"
       }
@@ -131,11 +129,11 @@
     "pre-commit-hooks": {
       "flake": false,
       "locked": {
-        "lastModified": 1712055707,
-        "narHash": "sha256-4XLvuSIDZJGS17xEwSrNuJLL7UjDYKGJSbK1WWX2AK8=",
+        "lastModified": 1726745158,
+        "narHash": "sha256-D5AegvGoEjt4rkKedmxlSEmC+nNLMBPWFxvmYnVLhjk=",
         "owner": "cachix",
         "repo": "git-hooks.nix",
-        "rev": "e35aed5fda3cc79f88ed7f1795021e559582093a",
+        "rev": "4e743a6920eab45e8ba0fbe49dc459f1423a4b74",
         "type": "github"
       },
       "original": {
@@ -160,11 +158,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1718139168,
-        "narHash": "sha256-1TZQcdETNdJMcfwwoshVeCjwWfrPtkSQ8y8wFX3it7k=",
+        "lastModified": 1730321837,
+        "narHash": "sha256-vK+a09qq19QNu2MlLcvN4qcRctJbqWkX7ahgPZ/+maI=",
         "owner": "numtide",
         "repo": "treefmt-nix",
-        "rev": "1cb529bffa880746a1d0ec4e0f5076876af931f1",
+        "rev": "746901bb8dba96d154b66492a29f5db0693dbfcc",
         "type": "github"
       },
       "original": {

flake.nix

@@ -1,7 +1,7 @@
 {
   description = "Hydra's builtin hydra-eval-jobs as a standalone";
 
-  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-23.11-small";
+  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-24.05-small";
   inputs.flake-parts.url = "github:hercules-ci/flake-parts";
   inputs.flake-parts.inputs.nixpkgs-lib.follows = "nixpkgs";
   inputs.treefmt-nix.url = "github:numtide/treefmt-nix";
@@ -9,7 +9,7 @@
   inputs.nix-github-actions.url = "github:nix-community/nix-github-actions";
   inputs.nix-github-actions.inputs.nixpkgs.follows = "nixpkgs";
   inputs.lix = {
-    url = "git+https://git@git.lix.systems/lix-project/lix";
+    url = "https://git.lix.systems/lix-project/lix/archive/main.tar.gz";
     inputs.nixpkgs.follows = "nixpkgs";
   };
 

meson.build

@@ -1,6 +1,11 @@
 project('nix-eval-jobs', 'cpp',
   version : '0.1.6',
   license : 'GPL-3.0',
+  default_options : [
+    'debug=true',
+    'optimization=2',
+    'cpp_std=c++20',
+  ],
 )
 
 nix_main_dep = dependency('lix-main', required: true)

shell.nix

@@ -23,6 +23,7 @@ in
 pkgs.mkShell {
   inherit (nix-eval-jobs) buildInputs;
   nativeBuildInputs = nix-eval-jobs.nativeBuildInputs ++ [
+    pkgs.clang-tools
     (pkgs.python3.withPackages (ps: [
       ps.pytest
     ]))

src/drv.cc

@@ -23,14 +23,17 @@
 #include "drv.hh"
 #include "eval-args.hh"
 
-static bool queryIsCached(nix::Store &store,
-                          std::map<std::string, std::string> &outputs) {
+static bool
+queryIsCached(nix::Store &store,
+              std::map<std::string, std::optional<std::string>> &outputs) {
     uint64_t downloadSize, narSize;
     nix::StorePathSet willBuild, willSubstitute, unknown;
 
     std::vector<nix::StorePathWithOutputs> paths;
     for (auto const &[key, val] : outputs) {
-        paths.push_back(followLinksToStorePathWithOutputs(store, val));
+        if (val) {
+            paths.push_back(followLinksToStorePathWithOutputs(store, *val));
+        }
     }
 
     store.queryMissing(toDerivedPaths(paths), willBuild, willSubstitute,
@@ -45,9 +48,19 @@ Drv::Drv(std::string &attrPath, nix::EvalState &state, nix::DrvInfo &drvInfo,
     auto localStore = state.store.dynamic_pointer_cast<nix::LocalFSStore>();
 
     try {
-        for (auto out : drvInfo.queryOutputs(true)) {
-            if (out.second)
-                outputs[out.first] = localStore->printStorePath(*out.second);
+        // CA derivations do not have static output paths, so we have to
+        // defensively not query output paths in case we encounter one.
+        for (auto &[outputName, optOutputPath] :
+             drvInfo.queryOutputs(!nix::experimentalFeatureSettings.isEnabled(
+                 nix::Xp::CaDerivations))) {
+            if (optOutputPath) {
+                outputs[outputName] =
+                    localStore->printStorePath(*optOutputPath);
+            } else {
+                assert(nix::experimentalFeatureSettings.isEnabled(
+                    nix::Xp::CaDerivations));
+                outputs[outputName] = std::nullopt;
+            }
         }
     } catch (const std::exception &e) {
         throw nix::EvalError(state,
@@ -98,10 +111,16 @@ Drv::Drv(std::string &attrPath, nix::EvalState &state, nix::DrvInfo &drvInfo,
 }
 
 void to_json(nlohmann::json &json, const Drv &drv) {
+    std::map<std::string, nlohmann::json> outputsJson;
+    for (auto &[name, optPath] : drv.outputs) {
+        outputsJson[name] =
+            optPath ? nlohmann::json(*optPath) : nlohmann::json(nullptr);
+    }
+
     json = nlohmann::json{{"name", drv.name},
                           {"system", drv.system},
                           {"drvPath", drv.drvPath},
-                          {"outputs", drv.outputs},
+                          {"outputs", outputsJson},
                           {"inputDrvs", drv.inputDrvs}};
 
     if (drv.meta.has_value()) {

src/drv.hh

@@ -24,7 +24,7 @@ struct Drv {
     std::string drvPath;
 
     enum class CacheStatus { Cached, Uncached, Unknown } cacheStatus;
-    std::map<std::string, std::string> outputs;
+    std::map<std::string, std::optional<std::string>> outputs;
     std::map<std::string, std::set<std::string>> inputDrvs;
     std::optional<nlohmann::json> meta;
 

src/meson.build

@@ -1,10 +1,10 @@
-src = [
+src = files(
   'nix-eval-jobs.cc',
   'eval-args.cc',
   'drv.cc',
   'buffered-io.cc',
-  'worker.cc'
-]
+  'worker.cc',
+)
 
 cc = meson.get_compiler('cpp')
 
@@ -31,4 +31,4 @@ executable('nix-eval-jobs', src,
              threads_dep
            ],
            install: true,
-           cpp_args: ['-std=c++2a', '--include', 'autotools-config.h'])
+           cpp_args: ['--include', 'autotools-config.h'])

src/nix-eval-jobs.cc

@@ -93,7 +93,7 @@ struct Proc {
 
         to = std::move(toPipe.writeSide);
         from = std::move(fromPipe.readSide);
-        pid = p;
+        pid = std::move(p);
     }
 
     ~Proc() {}
@@ -344,24 +344,16 @@ int main(int argc, char **argv) {
 
     return handleExceptions(argv[0], [&]() {
         initNix();
-        initGC();
+        initLibExpr();
 
         myArgs.parseArgs(argv, argc);
 
-        /* FIXME: The build hook in conjunction with import-from-derivation is
-         * causing "unexpected EOF" during eval */
-        settings.builders = "";
-
-        /* Prevent access to paths outside of the Nix search path and
-           to the environment. */
-        evalSettings.restrictEval = false;
-
         /* When building a flake, use pure evaluation (no access to
            'getEnv', 'currentSystem' etc. */
         if (myArgs.impure) {
-            evalSettings.pureEval = false;
+            evalSettings.pureEval.override(false);
         } else if (myArgs.flake) {
-            evalSettings.pureEval = true;
+            evalSettings.pureEval.override(true);
         }
 
         if (myArgs.releaseExpr == "")
@@ -374,7 +366,7 @@ int main(int argc, char **argv) {
         }
 
         if (myArgs.showTrace) {
-            loggerSettings.showTrace.assign(true);
+            loggerSettings.showTrace.override(true);
         }
 
         Sync<State> state_;

src/worker.cc

@@ -30,15 +30,12 @@
 #include <lix/libexpr/value.hh>
 #include <lix/libutil/terminal.hh>
 #include <exception>
-#include <map>
-#include <memory>
 #include <numeric>
 #include <optional>
 #include <sstream>
 #include <string>
 #include <string_view>
 #include <utility>
-#include <vector>
 
 #include "worker.hh"
 #include "drv.hh"
@@ -51,7 +48,7 @@ static nix::Value *releaseExprTopLevelValue(nix::EvalState &state,
     nix::Value vTop;
 
     if (args.fromArgs) {
-        nix::Expr *e = state.parseExprFromString(
+        nix::Expr &e = state.parseExprFromString(
             args.releaseExpr, state.rootPath(nix::CanonPath::fromCwd()));
         state.eval(e, vTop);
     } else {