From 9b41239d8fdcc3fe50febe718c15833ebc224354 Mon Sep 17 00:00:00 2001
From: Tom Bereknyei <tomberek@gmail.com>
Date: Fri, 25 Mar 2022 13:36:41 -0400
Subject: fix: ensure apps are apps and packages are packages

---
 src/nix/app.cc | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'src/nix')

diff --git a/src/nix/app.cc b/src/nix/app.cc
index 803d028f0..a43566496 100644
--- a/src/nix/app.cc
+++ b/src/nix/app.cc
@@ -65,6 +65,15 @@ UnresolvedApp Installable::toApp(EvalState & state)
 
     auto type = cursor->getAttr("type")->getString();
 
+    std::string expected;
+    if (hasPrefix(attrPath,"apps.")) {
+        expected = "app";
+    } else {
+        expected = "derivation";
+    }
+    if (type != expected) {
+        throw Error("Attribute '%s' should have type '%s'.", attrPath, expected);
+    }
     if (type == "app") {
         auto [program, context] = cursor->getAttr("program")->getStringWithContext();
 
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