flake.lock: Update

Flake lock file updates:

• Updated input 'flake-parts':
    'github:hercules-ci/flake-parts/9227223f6d922fee3c7b190b2cc238a99527bbb7' (2024-07-03)
  → 'github:hercules-ci/flake-parts/8471fe90ad337a8074e957b69ca4d0089218391d' (2024-08-01)
• Updated input 'lix':
    'ef0de7c79f.tar.gz?narHash=sha256-GUH5%2BB1JztzDNSN1D7KbndrYSq0LWvVIJnuWKHlpN3Q%3D' (2024-07-16)
  → 'b016eb0895.tar.gz?narHash=sha256-kOpGI9WPmte1L4QWHviuXsr8jxmGn27zwi82jtzYObM%3D&rev=b016eb0895bb6714a4f6530d9a2bb6577ac6c3cf' (2024-08-13)
• Updated input 'lix/nix2container':
    'github:nlewo/nix2container/20aad300c925639d5d6cbe30013c8357ce9f2a2e' (2024-04-13)
  → 'github:nlewo/nix2container/3853e5caf9ad24103b13aa6e0e8bcebb47649fe4' (2024-07-10)
• Updated input 'lix/pre-commit-hooks':
    'github:cachix/git-hooks.nix/e35aed5fda3cc79f88ed7f1795021e559582093a' (2024-04-02)
  → 'github:cachix/git-hooks.nix/f451c19376071a90d8c58ab1a953c6e9840527fd' (2024-07-15)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/732b4f3a3afdfe6a6c4fcb2511e529588d4e5ccd' (2024-07-15)
  → 'github:NixOS/nixpkgs/fb81cec9eda2a6b5365ad723995f0329d9e356fd' (2024-08-13)
• Updated input 'treefmt-nix':
    'github:numtide/treefmt-nix/0fb28f237f83295b4dd05e342f333b447c097398' (2024-07-15)
  → 'github:numtide/treefmt-nix/349de7bc435bdff37785c2466f054ed1766173be' (2024-08-12)

flake.lock

@@ -23,11 +23,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1717285511,
+        "lastModified": 1722555600,
-        "narHash": "sha256-iKzJcpdXih14qYVcZ9QC9XuZYnPc6T8YImb6dX166kw=",
+        "narHash": "sha256-XOQkdLafnb/p9ij77byFQjDf5m5QYl9b2REiVClC+x4=",
         "owner": "hercules-ci",
         "repo": "flake-parts",
-        "rev": "2a55567fcf15b1b1c7ed712a2c6fadaec7412ea8",
+        "rev": "8471fe90ad337a8074e957b69ca4d0089218391d",
         "type": "github"
       },
       "original": {
@@ -47,15 +47,15 @@
         "pre-commit-hooks": "pre-commit-hooks"
       },
       "locked": {
-        "lastModified": 1718590005,
+        "lastModified": 1723577950,
-        "narHash": "sha256-fiWc1ZyMlTXXSjcmoEQ+NHhIgtcImPHszbOu5c515cU=",
+        "narHash": "sha256-kOpGI9WPmte1L4QWHviuXsr8jxmGn27zwi82jtzYObM=",
-        "rev": "98d0249d5c7f5dcc1d2436c4829f073fca668f80",
+        "rev": "b016eb0895bb6714a4f6530d9a2bb6577ac6c3cf",
         "type": "tarball",
-        "url": "https://git.lix.systems/api/v1/repos/lix-project/lix/archive/98d0249d5c7f5dcc1d2436c4829f073fca668f80.tar.gz"
+        "url": "https://git.lix.systems/api/v1/repos/lix-project/lix/archive/b016eb0895bb6714a4f6530d9a2bb6577ac6c3cf.tar.gz?rev=b016eb0895bb6714a4f6530d9a2bb6577ac6c3cf"
       },
       "original": {
         "type": "tarball",
-        "url": "https://git.lix.systems/lix-project/lix/archive/release-2.90.tar.gz"
+        "url": "https://git.lix.systems/lix-project/lix/archive/main.tar.gz"
       }
     },
     "nix-github-actions": {
@@ -65,11 +65,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1703863825,
+        "lastModified": 1720066371,
-        "narHash": "sha256-rXwqjtwiGKJheXB43ybM8NwWB8rO2dSRrEqes0S7F5Y=",
+        "narHash": "sha256-uPlLYH2S0ACj0IcgaK9Lsf4spmJoGejR9DotXiXSBZQ=",
         "owner": "nix-community",
         "repo": "nix-github-actions",
-        "rev": "5163432afc817cf8bd1f031418d1869e4c9d5547",
+        "rev": "622f829f5fe69310a866c8a6cd07e747c44ef820",
         "type": "github"
       },
       "original": {
@@ -81,11 +81,11 @@
     "nix2container": {
       "flake": false,
       "locked": {
-        "lastModified": 1712990762,
+        "lastModified": 1720642556,
-        "narHash": "sha256-hO9W3w7NcnYeX8u8cleHiSpK2YJo7ecarFTUlbybl7k=",
+        "narHash": "sha256-qsnqk13UmREKmRT7c8hEnz26X3GFFyIQrqx4EaRc1Is=",
         "owner": "nlewo",
         "repo": "nix2container",
-        "rev": "20aad300c925639d5d6cbe30013c8357ce9f2a2e",
+        "rev": "3853e5caf9ad24103b13aa6e0e8bcebb47649fe4",
         "type": "github"
       },
       "original": {
@@ -96,11 +96,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1718676691,
+        "lastModified": 1723540975,
-        "narHash": "sha256-DWKbARWtRpT1yiLLm+5vMijx65YB7NwGZMV6NXOtrJ8=",
+        "narHash": "sha256-rxpxOz2VSqgmwI7g7FGVAoye5bxwO1MSpnELY5bsITw=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "d9e18354acbf59c625505b7315c85508e9831bf4",
+        "rev": "fb81cec9eda2a6b5365ad723995f0329d9e356fd",
         "type": "github"
       },
       "original": {
@@ -129,11 +129,11 @@
     "pre-commit-hooks": {
       "flake": false,
       "locked": {
-        "lastModified": 1712055707,
+        "lastModified": 1721042469,
-        "narHash": "sha256-4XLvuSIDZJGS17xEwSrNuJLL7UjDYKGJSbK1WWX2AK8=",
+        "narHash": "sha256-6FPUl7HVtvRHCCBQne7Ylp4p+dpP3P/OYuzjztZ4s70=",
         "owner": "cachix",
         "repo": "git-hooks.nix",
-        "rev": "e35aed5fda3cc79f88ed7f1795021e559582093a",
+        "rev": "f451c19376071a90d8c58ab1a953c6e9840527fd",
         "type": "github"
       },
       "original": {
@@ -158,11 +158,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1718139168,
+        "lastModified": 1723454642,
-        "narHash": "sha256-1TZQcdETNdJMcfwwoshVeCjwWfrPtkSQ8y8wFX3it7k=",
+        "narHash": "sha256-S0Gvsenh0II7EAaoc9158ZB4vYyuycvMGKGxIbERNAM=",
         "owner": "numtide",
         "repo": "treefmt-nix",
-        "rev": "1cb529bffa880746a1d0ec4e0f5076876af931f1",
+        "rev": "349de7bc435bdff37785c2466f054ed1766173be",
         "type": "github"
       },
       "original": {

flake.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 = "https://git.lix.systems/lix-project/lix/archive/release-2.90.tar.gz";
+    url = "https://git.lix.systems/lix-project/lix/archive/main.tar.gz";
     inputs.nixpkgs.follows = "nixpkgs";
   };
 

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,
+static bool
-                          std::map<std::string, std::string> &outputs) {
+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)) {
+        // CA derivations do not have static output paths, so we have to
-            if (out.second)
+        // defensively not query output paths in case we encounter one.
-                outputs[out.first] = localStore->printStorePath(*out.second);
+        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/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() {}

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 {