From 0d93594347a9730187184fcfc292c6bc987cb8d5 Mon Sep 17 00:00:00 2001
From: Vincent Ambo <tazjin@google.com>
Date: Tue, 3 Sep 2019 00:43:49 +0100
Subject: [PATCH] fix(tazblog): Explicitly allow substitutes for the blog

Not entirely sure which part of the setup set this to 'false', but
this is potentially the key for why tazblog ends up being rebuilt all
the time.
---
 services/tazblog/default.nix | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/services/tazblog/default.nix b/services/tazblog/default.nix
index fa436b824..5dc3bdaf3 100644
--- a/services/tazblog/default.nix
+++ b/services/tazblog/default.nix
@@ -4,9 +4,13 @@
 
 { writeShellScriptBin, haskell }:
 
-let tazblog = haskell.packages.ghc865.callPackage ./tazblog.nix {};
-in writeShellScriptBin "tazblog" ''
-  export PORT=8000
-  export RESOURCE_DIR=${./static}
-  exec ${tazblog}/bin/tazblog
-''
+let
+  tazblog = haskell.packages.ghc865.callPackage ./tazblog.nix {};
+  wrapper =  writeShellScriptBin "tazblog" ''
+    export PORT=8000
+    export RESOURCE_DIR=${./static}
+    exec ${tazblog}/bin/tazblog
+  '';
+in wrapper.overrideAttrs(_: {
+  allowSubstitutes = true;
+})