fix: make buildbot-profiler build

Signed-off-by: Raito Bezarius <raito@lix.systems>

nix/profiler-plugin.nix

@@ -2,8 +2,13 @@
   lib,
   buildPythonPackage,
   fetchFromGitHub,
+  # Because python3Packages.buildbot and pkgs.buildbot are colliding...
+  buildbotPackages,
   setuptools,
   wheel,
+  fetchYarnDeps,
+  yarnConfigHook,
+  nodejs
 }:
 
 buildPythonPackage rec {
@@ -18,11 +23,34 @@ buildPythonPackage rec {
     hash = "sha256-r56Cze0v3gKWKJwRy0BUYz5z8d0g3jerCIu3KreNxUc=";
   };
 
+  postPatch = ''
+    # Remove some Python 2.
+    sed -i '6d' setup.py
+    # Copy the yarn.lock for further fixups.
+    cp ${./profiler/yarn.lock} yarn.lock
+    chmod +w yarn.lock
+  '';
+
+  yarnOfflineCache = fetchYarnDeps {
+    yarnLock = ./profiler/yarn.lock;
+    hash = "sha256-u3v8Tf5RKOaOARbntqjPGlav5uqGCr/lQ1sF6xPJBmQ=";
+  };
+
+  nativeBuildInputs = [
+    yarnConfigHook
+    # Needed for executing package.json scripts
+    nodejs
+  ];
+
   build-system = [
     setuptools
     wheel
   ];
 
+  dependencies = [
+    buildbotPackages.buildbot-pkg
+  ];
+
   pythonImportsCheck = [
     "buildbot_profiler"
   ];