From 63c7eab37db1ebfa503d42b5fd558f0410cb933e Mon Sep 17 00:00:00 2001
From: Jan Tojnar <jtojnar@gmail.com>
Date: Mon, 20 May 2024 01:39:07 +0200
Subject: [PATCH] style: Centralize GHC version

---
 default.nix         | 2 +-
 nix/ci.nix          | 2 +-
 nix/ghc-version.nix | 1 +
 nix/pkgs.nix        | 2 +-
 nix/toc.nix         | 2 +-
 5 files changed, 5 insertions(+), 4 deletions(-)
 create mode 100644 nix/ghc-version.nix

diff --git a/default.nix b/default.nix
index b793e77..0859bf3 100644
--- a/default.nix
+++ b/default.nix
@@ -1,6 +1,6 @@
 {
   packages ? import nix/pkgs.nix { inherit compiler; },
-  compiler ? "ghc964",
+  compiler ? import nix/ghc-version.nix,
 }:
 
 let
diff --git a/nix/ci.nix b/nix/ci.nix
index 92cbeca..5d589f7 100644
--- a/nix/ci.nix
+++ b/nix/ci.nix
@@ -1,6 +1,6 @@
 {
   packages ? import ./pkgs.nix { inherit compiler; },
-  compiler ? "ghc964",
+  compiler ? import ./ghc-version.nix,
 }:
 
 let
diff --git a/nix/ghc-version.nix b/nix/ghc-version.nix
new file mode 100644
index 0000000..636c15f
--- /dev/null
+++ b/nix/ghc-version.nix
@@ -0,0 +1 @@
+"ghc964"
diff --git a/nix/pkgs.nix b/nix/pkgs.nix
index 24042f3..24e6050 100644
--- a/nix/pkgs.nix
+++ b/nix/pkgs.nix
@@ -1,5 +1,5 @@
 {
-  compiler ? "ghc964",
+  compiler ? import ./ghc-version.nix,
 }:
 
 let
diff --git a/nix/toc.nix b/nix/toc.nix
index 541a06f..9149f68 100644
--- a/nix/toc.nix
+++ b/nix/toc.nix
@@ -1,5 +1,5 @@
 {
-  compiler ? "ghc964",
+  compiler ? import ./ghc-version.nix,
 }:
 
 let