ci(nix): Check that $OMNIX_SOURCE is buildable

Do it without building it; just evaluating the drv is enough.
juspay · Oct 26, 2024 · bf1806e · bf1806e
1 parent db74dfd
commit bf1806e
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Showing 2 changed files with 19 additions and 11 deletions.
diff --git a/nix/modules/flake-parts/om.nix b/nix/modules/flake-parts/om.nix
@@ -19,6 +19,10 @@
                 name = "check-closure-size";
                 systems = [ "x86_64-linux" ]; # We have static binary for Linux only.
               };
+              omnix-source-is-buildable = {
+                type = "app";
+                name = "omnix-source-is-buildable";
+              };
               cargo-tests = {
                 type = "devshell";
                 command = [ "just" "cargo-test" ];

diff --git a/nix/modules/flake-parts/rust.nix b/nix/modules/flake-parts/rust.nix
@@ -62,16 +62,20 @@
         });
       };
 
-    checks.omnix-source-has-flake = pkgs.runCommand
-      "omnix-source-has-flake"
-      { buildInputs = [ pkgs.lsd ]; } ''
-      set -e
-      cd ${self'.packages.omnix-cli.OMNIX_SOURCE.outPath}
-      pwd
-      lsd --tree
-      test -f flake.nix
-      test -f flake.lock
-      touch $out
-    '';
+    apps.omnix-source-is-buildable.program = pkgs.writeShellApplication
+      {
+        name = "omnix-source-is-buildable";
+        runtimeInputs = [
+          pkgs.lsd
+          pkgs.jq
+        ];
+        text = ''
+          set -e
+          cd ${self'.packages.omnix-cli.OMNIX_SOURCE.outPath}
+          # Make sure the drv evaluates (to test that no files are accidentally excluded)
+          nix --accept-flake-config --extra-experimental-features "flakes nix-command" \
+            derivation show "." | jq -r '.[].outputs.out.path'
+        '';
+      };
   };
 }