From 819796060f022e12e7872514256439cf52547310 Mon Sep 17 00:00:00 2001
From: Peter Hoeg <peter@hoeg.com>
Date: Sun, 19 Apr 2020 23:43:22 +0800
Subject: [PATCH] crystal2nix: specify build type

---
 pkgs/development/compilers/crystal/crystal2nix.nix | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/pkgs/development/compilers/crystal/crystal2nix.nix b/pkgs/development/compilers/crystal/crystal2nix.nix
index ac69b9b3d96..5fc40cd2374 100644
--- a/pkgs/development/compilers/crystal/crystal2nix.nix
+++ b/pkgs/development/compilers/crystal/crystal2nix.nix
@@ -1,4 +1,5 @@
 { lib, crystal, nix-prefetch-git }:
+
 crystal.buildCrystalPackage {
   pname = "crystal2nix";
   version = "unstable-2018-07-31";
@@ -6,11 +7,16 @@ crystal.buildCrystalPackage {
   nixPrefetchGit = "${lib.getBin nix-prefetch-git}/bin/nix-prefetch-git";
   unpackPhase = "substituteAll ${./crystal2nix.cr} crystal2nix.cr";
 
+  format = "crystal";
+
   crystalBinaries.crystal2nix.src = "crystal2nix.cr";
 
+  # it will blow up without a shard.yml file
+  doInstallCheck = false;
+
   meta = with lib; {
     description = "Utility to convert Crystal's shard.lock files to a Nix file";
     license = licenses.mit;
-    maintainers = [ maintainers.manveru ];
+    maintainers = with maintainers; [ manveru ];
   };
 }