From 63689564a2e39ef9b43a1f07c9501774e3ed3685 Mon Sep 17 00:00:00 2001
From: Jean-Paul Calderone <exarkun@twistedmatrix.com>
Date: Mon, 14 Sep 2020 09:15:44 -0400
Subject: [PATCH] Pin haskell.nix
When it changes we often have to rebuild ghc ... :(
---
nixos/modules/leasereport.nix | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/nixos/modules/leasereport.nix b/nixos/modules/leasereport.nix
index 8695a51f..095ad090 100644
--- a/nixos/modules/leasereport.nix
+++ b/nixos/modules/leasereport.nix
@@ -1,5 +1,12 @@
{ callPackage }:
let
leasereport = import ./leasereport-repo.nix;
+
+ # Pin a particular version of haskell.nix. The particular version isn't
+ # special. It's just recent at the time this expression was written and it
+ # is known to work with LeaseReport. It could be bumped if necessary but
+ # this would probably only happen as a result of bumping the resolver in
+ # stack.yaml.
+ haskellNixSrc ? builtins.fetchTarball https://github.com/input-output-hk/haskell.nix/archive/31fd01e14729e686de0a915b9bc4ff70397a84c7.tar.gz
in
- (callPackage "${leasereport}/nix" { }).LeaseReport.components.exes.LeaseReport
+ (callPackage "${leasereport}/nix" { inherit haskellNixSrc; }).LeaseReport.components.exes.LeaseReport
--
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