From 03d439fed3d57fb6c27ac5e57aa75a6b400ed6e2 Mon Sep 17 00:00:00 2001
From: adisbladis <adisbladis@gmail.com>
Date: Thu, 2 Jan 2020 18:27:01 +0000
Subject: [PATCH] Remove hard-coded known build systems

We can attempt to dynamically fetch this from the python package set instead.
---
 lib.nix | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/lib.nix b/lib.nix
index 4c69eb5..9ec76de 100644
--- a/lib.nix
+++ b/lib.nix
@@ -60,14 +60,12 @@ let
     { pythonPackages
     , pyProject
     }: let
-      knownBuildSystems = {
-        "intreehooks:loader" = [ pythonPackages.intreehooks ];
-        "poetry.masonry.api" = [ pythonPackages.poetry ];
-        "" = [];
-      };
       buildSystem = lib.getAttrFromPath [ "build-system" "build-backend" ] pyProject;
+      drvAttr = builtins.elemAt (builtins.split "\\.|:" buildSystem) 0;
     in
-      knownBuildSystems.${buildSystem} or (throw "unsupported build system ${buildSystem}");
+      if buildSystem == "" then [] else (
+        [ pythonPackages.${drvAttr} or (throw "unsupported build system ${buildSystem}") ]
+      );
 
 in
 {