From 5c79bcb896468e9ed403ca465a96b7e8310bb703 Mon Sep 17 00:00:00 2001
From: Fiscal Velvet Poet <fiscalvelvetpoet@jfdic.org>
Date: Thu, 7 Jul 2022 13:57:44 +1000
Subject: [PATCH] nix: added alejandra for formatting

---
 default.nix | 19 ++++++++++++-------
 1 file changed, 12 insertions(+), 7 deletions(-)

diff --git a/default.nix b/default.nix
index 4e83b98..e309c7a 100644
--- a/default.nix
+++ b/default.nix
@@ -1,15 +1,20 @@
-{ sources ? import ./nix/sources.nix
-, system ? builtins.currentSystem
-, crossSystem ? null
-, config ? {}
-}@args: with import ./nix args; {
+{
+  sources ? import ./nix/sources.nix,
+  system ? builtins.currentSystem,
+  crossSystem ? null,
+  config ? {},
+  alejandraUnstable ? (import sources.nixpkgsUnstable {}).alejandra,
+} @ args:
+with import ./nix args; {
   shell = mkShell {
     inherit (import sources.niv {}) niv;
     buildInputs = [
+      alejandraUnstable # The Uncompromising Nix Code Formatter
       niv
-      nixopsUnstable                   # work around for issue #127423
+      nixopsUnstable # work around for issue #127423
+      treefmt # one CLI to format the code tree
     ];
-    NIX_PATH = "nixpkgs=${path}";
+    NIX_PATH = "nixpkgs=${sources.nixpkgs}";
     NIXOPS_DEPLOYMENT = "${globals.deploymentName}";
   };
 }