If determinate is false, pass --prefer-upstream (#202)

* If determinate is false, pass --prefer-upstream

* Regenerate

* Update to an installer version that supports preferring upstream

* Delete the rev test, since rev uploads appoar to have broken a long time ago

* Fixup: expect upstream nix at the moment

Author: grahamc

.github/workflows/ci.yml

@@ -150,14 +150,10 @@ jobs:
     strategy:
       matrix:
         inputs:
-          # https://github.com/DeterminateSystems/nix-installer/blob/v0.18.0
+          # https://github.com/DeterminateSystems/nix-installer/blob/v3.11.3
           - key: url
-            value: https://github.com/DeterminateSystems/nix-installer/releases/download/v0.18.0/nix-installer-x86_64-linux
-            nix-version: "2.21.2"
-          # https://github.com/DeterminateSystems/nix-installer/tree/7011c077ec491da410fbc39f68676b0908b9ce7e
-          - key: revision
-            value: 7011c077ec491da410fbc39f68676b0908b9ce7e
-            nix-version: "2.19.2"
+            value: https://github.com/DeterminateSystems/nix-installer/releases/download/v3.11.3/nix-installer-x86_64-linux
+            nix-version: "2.32.0"
 
     steps:
       - uses: actions/checkout@v4

dist/index.js

@@ -48,6 +48,7 @@ const FACT_SENT_SIGTERM = "sent_sigterm";
 
 // Flags
 const FLAG_DETERMINATE = "--determinate";
+const FLAG_PREFER_UPSTREAM_NIX = "--prefer-upstream-nix";
 
 // Pre/post state keys
 const STATE_DAEMONDIR = "DNI_DAEMONDIR";
@@ -432,6 +433,8 @@ class NixInstallerAction extends DetSysAction {
       if (this.extraArgs && !this.extraArgs.includes(FLAG_DETERMINATE)) {
         args.push(FLAG_DETERMINATE);
       }
+    } else {
+      args.push(FLAG_PREFER_UPSTREAM_NIX);
     }
 
     return args;