tests.nixpkgs-check-by-name: Intermediate UndefinedAttr error

2 files changed, 20 insertions, 10 deletions

diff --git a/pkgs/test/nixpkgs-check-by-name/src/check_result.rs b/pkgs/test/nixpkgs-check-by-name/src/check_result.rs
index 6b1d120de8fab..f546b12854507 100644
--- a/pkgs/test/nixpkgs-check-by-name/src/check_result.rs
+++ b/pkgs/test/nixpkgs-check-by-name/src/check_result.rs
@@ -6,6 +6,10 @@ use std::io;
 use std::path::PathBuf;
 
 pub enum CheckError {
+    UndefinedAttr {
+        relative_package_file: PathBuf,
+        package_name: String,
+    },
     WrongCallPackage {
         relative_package_file: PathBuf,
         package_name: String,
@@ -64,6 +68,12 @@ impl CheckError {
 impl fmt::Display for CheckError {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         match self {
+            CheckError::UndefinedAttr { relative_package_file, package_name } =>
+                write!(
+                    f,
+                    "pkgs.{package_name}: This attribute is not defined but it should be defined automatically as {}",
+                    relative_package_file.display()
+                ),
             CheckError::WrongCallPackage { relative_package_file, package_name } =>
                 write!(
                     f,
diff --git a/pkgs/test/nixpkgs-check-by-name/src/eval.rs b/pkgs/test/nixpkgs-check-by-name/src/eval.rs
index d1c5135b7d85f..81cf43a381ed3 100644
--- a/pkgs/test/nixpkgs-check-by-name/src/eval.rs
+++ b/pkgs/test/nixpkgs-check-by-name/src/eval.rs
@@ -116,7 +116,7 @@ pub fn check_values<W: io::Write>(
         let relative_package_file = structure::Nixpkgs::relative_file_for_package(package_name);
         let absolute_package_file = nixpkgs.path.join(&relative_package_file);
 
-        if let Some(attribute_info) = actual_files.get(package_name) {
+        let check_result = if let Some(attribute_info) = actual_files.get(package_name) {
             let valid = match &attribute_info.variant {
                 AttributeVariant::AutoCalled => true,
                 AttributeVariant::CallPackage { path, empty_arg } => {
@@ -137,7 +137,7 @@ pub fn check_values<W: io::Write>(
                 AttributeVariant::Other => false,
             };
 
-            let check_result = if !valid {
+            if !valid {
                 CheckError::WrongCallPackage {
                     relative_package_file: relative_package_file.clone(),
                     package_name: package_name.clone(),
@@ -151,15 +151,15 @@ pub fn check_values<W: io::Write>(
                 .into_result()
             } else {
                 pass(())
-            };
-            write_check_result(error_writer, check_result)?;
+            }
         } else {
-            error_writer.write(&format!(
-                "pkgs.{package_name}: This attribute is not defined but it should be defined automatically as {}",
-                relative_package_file.display()
-            ))?;
-            continue;
-        }
+            CheckError::UndefinedAttr {
+                relative_package_file: relative_package_file.clone(),
+                package_name: package_name.clone(),
+            }
+            .into_result()
+        };
+        write_check_result(error_writer, check_result)?;
     }
     Ok(())
 }