From fc21e3a1b2255d82afcc45770704920da875cbfc Mon Sep 17 00:00:00 2001
From: Grigory Shipunov
Date: Tue, 14 Feb 2023 22:00:22 +0100
Subject: refactor basic tools a bit

---
 modules/basic-tools/nix.nix | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)
 create mode 100644 modules/basic-tools/nix.nix

(limited to 'modules/basic-tools/nix.nix')

diff --git a/modules/basic-tools/nix.nix b/modules/basic-tools/nix.nix
new file mode 100644
index 0000000..4a481ae
--- /dev/null
+++ b/modules/basic-tools/nix.nix
@@ -0,0 +1,36 @@
+{ lib, pkgs, inputs, ... }: {
+
+  nix = {
+    extraOptions = ''
+      experimental-features = nix-command flakes
+    '';
+  };
+
+  # override default nix shell nixpkgs# behaviour to use current flake lock
+  nix.registry =
+    let flakes = lib.filterAttrs (_name: value: value ? outputs) inputs.self.inputs;
+    in builtins.mapAttrs (_name: v: { flake = v; }) flakes;
+
+  nix.nixPath = lib.mapAttrsToList (name: value: "${name}=${value.outPath}") inputs.self.inputs;
+
+  environment.shellAliases = {
+    nix-build="${pkgs.nix-output-monitor}/bin/nom-build";
+    nix-shell="${pkgs.nix-output-monitor}/bin/nom-shell";
+  };
+
+  programs.zsh.interactiveShellInit = ''
+      # hacky wrapper for nix, so we can use nom automagically
+      export _nom_cmd=${pkgs.nix-output-monitor}/bin/nom
+      function nix {
+          case $1 in
+              build|shell|develop)
+                  echo \[SUBSTITUTION\] ''$_nom_cmd ''${@:1} 1>&2
+                  ''$_nom_cmd ''${@:1}
+                  ;;
+              *)
+                  ${pkgs.nix}/bin/nix $@
+          esac
+      }
+      compdef nix=_nix
+  '';
+}
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