fix build with latest Lix

Lix commit 4dbbd721e[1] changed the way settings are changed, removing
operator= in the process. This commit changes the places where we use
operator= to using either setDefault(), or override(). I *believe* I
have used the correct ones for each changed setting.

Fixes #13.

[1]: 4dbbd721eb9db75d4968a624b8cb9e75e979a144

flake.lock

@@ -23,11 +23,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1722555600,
-        "narHash": "sha256-XOQkdLafnb/p9ij77byFQjDf5m5QYl9b2REiVClC+x4=",
+        "lastModified": 1727826117,
+        "narHash": "sha256-K5ZLCyfO/Zj9mPFldf3iwS6oZStJcU4tSpiXTMYaaL0=",
         "owner": "hercules-ci",
         "repo": "flake-parts",
-        "rev": "8471fe90ad337a8074e957b69ca4d0089218391d",
+        "rev": "3d04084d54bedc3d6b8b736c70ef449225c361b1",
         "type": "github"
       },
       "original": {
@@ -47,11 +47,11 @@
         "pre-commit-hooks": "pre-commit-hooks"
       },
       "locked": {
-        "lastModified": 1723577950,
-        "narHash": "sha256-kOpGI9WPmte1L4QWHviuXsr8jxmGn27zwi82jtzYObM=",
-        "rev": "b016eb0895bb6714a4f6530d9a2bb6577ac6c3cf",
+        "lastModified": 1729696851,
+        "narHash": "sha256-XME7TzBvjK6GEmZqPLK+2+Wk0qnwc7DCwYH434hMcOM=",
+        "rev": "2734a9cf94debc6baef4e7d4d9fa28cc28f5b31d",
         "type": "tarball",
-        "url": "https://git.lix.systems/api/v1/repos/lix-project/lix/archive/b016eb0895bb6714a4f6530d9a2bb6577ac6c3cf.tar.gz?rev=b016eb0895bb6714a4f6530d9a2bb6577ac6c3cf"
+        "url": "https://git.lix.systems/api/v1/repos/lix-project/lix/archive/2734a9cf94debc6baef4e7d4d9fa28cc28f5b31d.tar.gz?rev=2734a9cf94debc6baef4e7d4d9fa28cc28f5b31d"
       },
       "original": {
         "type": "tarball",
@@ -65,11 +65,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1720066371,
-        "narHash": "sha256-uPlLYH2S0ACj0IcgaK9Lsf4spmJoGejR9DotXiXSBZQ=",
+        "lastModified": 1729742964,
+        "narHash": "sha256-B4mzTcQ0FZHdpeWcpDYPERtyjJd/NIuaQ9+BV1h+MpA=",
         "owner": "nix-community",
         "repo": "nix-github-actions",
-        "rev": "622f829f5fe69310a866c8a6cd07e747c44ef820",
+        "rev": "e04df33f62cdcf93d73e9a04142464753a16db67",
         "type": "github"
       },
       "original": {
@@ -81,11 +81,11 @@
     "nix2container": {
       "flake": false,
       "locked": {
-        "lastModified": 1720642556,
-        "narHash": "sha256-qsnqk13UmREKmRT7c8hEnz26X3GFFyIQrqx4EaRc1Is=",
+        "lastModified": 1724996935,
+        "narHash": "sha256-njRK9vvZ1JJsP8oV2OgkBrpJhgQezI03S7gzskCcHos=",
         "owner": "nlewo",
         "repo": "nix2container",
-        "rev": "3853e5caf9ad24103b13aa6e0e8bcebb47649fe4",
+        "rev": "fa6bb0a1159f55d071ba99331355955ae30b3401",
         "type": "github"
       },
       "original": {
@@ -96,11 +96,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1723540975,
-        "narHash": "sha256-rxpxOz2VSqgmwI7g7FGVAoye5bxwO1MSpnELY5bsITw=",
+        "lastModified": 1729851744,
+        "narHash": "sha256-c3ZSmkQdcdmNAzHud2b0fANXNa8TcySH0ZAqND5zEi0=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "fb81cec9eda2a6b5365ad723995f0329d9e356fd",
+        "rev": "45e5197248e59e92e88956c5aa12553a7f62337f",
         "type": "github"
       },
       "original": {
@@ -129,11 +129,11 @@
     "pre-commit-hooks": {
       "flake": false,
       "locked": {
-        "lastModified": 1721042469,
-        "narHash": "sha256-6FPUl7HVtvRHCCBQne7Ylp4p+dpP3P/OYuzjztZ4s70=",
+        "lastModified": 1726745158,
+        "narHash": "sha256-D5AegvGoEjt4rkKedmxlSEmC+nNLMBPWFxvmYnVLhjk=",
         "owner": "cachix",
         "repo": "git-hooks.nix",
-        "rev": "f451c19376071a90d8c58ab1a953c6e9840527fd",
+        "rev": "4e743a6920eab45e8ba0fbe49dc459f1423a4b74",
         "type": "github"
       },
       "original": {
@@ -158,11 +158,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1723454642,
-        "narHash": "sha256-S0Gvsenh0II7EAaoc9158ZB4vYyuycvMGKGxIbERNAM=",
+        "lastModified": 1729613947,
+        "narHash": "sha256-XGOvuIPW1XRfPgHtGYXd5MAmJzZtOuwlfKDgxX5KT3s=",
         "owner": "numtide",
         "repo": "treefmt-nix",
-        "rev": "349de7bc435bdff37785c2466f054ed1766173be",
+        "rev": "aac86347fb5063960eccb19493e0cadcdb4205ca",
         "type": "github"
       },
       "original": {

src/nix-eval-jobs.cc

@@ -350,18 +350,18 @@ int main(int argc, char **argv) {
 
         /* FIXME: The build hook in conjunction with import-from-derivation is
          * causing "unexpected EOF" during eval */
-        settings.builders = "";
+        settings.builders.setDefault("");
 
         /* Prevent access to paths outside of the Nix search path and
            to the environment. */
-        evalSettings.restrictEval = false;
+        evalSettings.restrictEval.setDefault(false);
 
         /* When building a flake, use pure evaluation (no access to
            'getEnv', 'currentSystem' etc. */
         if (myArgs.impure) {
-            evalSettings.pureEval = false;
+            evalSettings.pureEval.setDefault(false);
         } else if (myArgs.flake) {
-            evalSettings.pureEval = true;
+            evalSettings.pureEval.setDefault(true);
         }
 
         if (myArgs.releaseExpr == "")
@@ -374,7 +374,7 @@ int main(int argc, char **argv) {
         }
 
         if (myArgs.showTrace) {
-            loggerSettings.showTrace.assign(true);
+            loggerSettings.showTrace.override(true);
         }
 
         Sync<State> state_;