From 34c3c026b4c9ac1cc37eb97313535aace6b6400b Mon Sep 17 00:00:00 2001
From: Matt Sturgeon <matt@sturgeon.me.uk>
Date: Tue, 9 Jul 2024 15:11:29 +0100
Subject: [PATCH] tests: add check for nixpkgs maintainers

The test fails if a nixvim maintainer is also a nixpkgs maintainer.
---
 flake-modules/tests.nix |  2 ++
 tests/maintainers.nix   | 21 +++++++++++++++++++++
 2 files changed, 23 insertions(+)
 create mode 100644 tests/maintainers.nix

diff --git a/flake-modules/tests.nix b/flake-modules/tests.nix
index 5b484007..7e6789d4 100644
--- a/flake-modules/tests.nix
+++ b/flake-modules/tests.nix
@@ -44,6 +44,8 @@
           inherit pkgs helpers;
           inherit (pkgs) lib;
         };
+
+        maintainers = import ../tests/maintainers.nix { inherit pkgs; };
       };
     };
 }
diff --git a/tests/maintainers.nix b/tests/maintainers.nix
new file mode 100644
index 00000000..a9033aac
--- /dev/null
+++ b/tests/maintainers.nix
@@ -0,0 +1,21 @@
+{
+  pkgs ? import <nixpkgs> { },
+  lib ? pkgs.lib,
+}:
+let
+  inherit (lib) attrNames filter length;
+  nixvimList = import ../lib/maintainers.nix;
+  nixpkgsList = lib.maintainers;
+  duplicates = filter (name: nixpkgsList ? ${name}) (attrNames nixvimList);
+  count = length duplicates;
+in
+pkgs.runCommand "maintainers-test" { inherit count duplicates; } ''
+  if [ $count -gt 0 ]; then
+    echo "$count nixvim maintainers are also nixpkgs maintainers:"
+    for name in $duplicates; do
+      echo "- $name"
+    done
+    exit 1
+  fi
+  touch $out
+''