Rewire nix-tools

Author: andreabedini

flake.lock

@@ -46,10 +46,6 @@
       url = "github:sevanspowell/hpc-coveralls";
       flake = false;
     };
-    nix-tools = {
-      url = "github:input-output-hk/nix-tools";
-      flake = false;
-    };
     old-ghc-nix = {
       url = "github:angerman/old-ghc-nix/master";
       flake = false;

flake.nix

@@ -918,14 +918,7 @@ in {
           final.haskell-nix.cabalProject ({pkgs, ...}: {
             evalPackages = pkgs.buildPackages;
             name = "nix-tools";
-            src = {
-              outPath = final.haskell-nix.sources.nix-tools;
-              # TODO remove once nix >=2.4 is widely adopted (will trigger rebuilds of everything).
-              # Disable filtering keeps pre ond post nix 2.4 behaviour the same.  This means that
-              # the same `alex`, `happy` and `hscolour` are used to build GHC.  It also means that
-              # that `tools` in the shell will be built the same.
-              filterPath = { path, ... }: path;
-            };
+            src = ../nix-tools;
             # This is a handy way to use a local git clone of nix-tools when developing
             # src = final.haskell-nix.haskellLib.cleanGit { name = "nix-tools"; src = ../../nix-tools; };
             cabalProjectLocal = ''