Merge commit '1a57d96edd156958b12782e8c8b6a374142a7248'

2 files changed, 50 insertions, 0 deletions

diff --git a/nixpkgs/pkgs/development/compilers/crystal2nix/default.nix b/nixpkgs/pkgs/development/compilers/crystal2nix/default.nix
new file mode 100644
index 000000000000..25cbbd4d01aa
--- /dev/null
+++ b/nixpkgs/pkgs/development/compilers/crystal2nix/default.nix
@@ -0,0 +1,36 @@
+{ lib, fetchFromGitHub, fetchgit, crystal, makeWrapper, nix-prefetch-git }:
+
+crystal.buildCrystalPackage rec {
+  pname = "crystal2nix";
+  version = "0.1.0";
+
+  src = fetchFromGitHub {
+    owner = "peterhoeg";
+    repo = "crystal2nix";
+    rev = "v${version}";
+    sha256 = "sha256-K1ElG8VC/D0axmSRaufH3cE50xNQisAmFucDkV+5O0s=";
+  };
+
+  format = "shards";
+
+  shardsFile = ./shards.nix;
+
+  nativeBuildInputs = [ makeWrapper ];
+
+  postInstall = ''
+    wrapProgram $out/bin/crystal2nix \
+      --prefix PATH : ${lib.makeBinPath [ nix-prefetch-git ]}
+  '';
+
+  # temporarily off. We need the checks to execute the wrapped binary
+  doCheck = false;
+
+  # it requires an internet connection when run
+  doInstallCheck = false;
+
+  meta = with lib; {
+    description = "Utility to convert Crystal's shard.lock files to a Nix file";
+    license = licenses.mit;
+    maintainers = with maintainers; [ manveru peterhoeg ];
+  };
+}
diff --git a/nixpkgs/pkgs/development/compilers/crystal2nix/shards.nix b/nixpkgs/pkgs/development/compilers/crystal2nix/shards.nix
new file mode 100644
index 000000000000..abfc0f93072d
--- /dev/null
+++ b/nixpkgs/pkgs/development/compilers/crystal2nix/shards.nix
@@ -0,0 +1,14 @@
+{
+  json_mapping = {
+    owner = "crystal-lang";
+    repo = "json_mapping.cr";
+    rev = "v0.1.0";
+    sha256 = "1qq5vs2085x7cwmp96rrjns0yz9kiz1lycxynfbz5psxll6b8p55";
+  };
+  yaml_mapping = {
+    owner = "crystal-lang";
+    repo = "yaml_mapping.cr";
+    rev = "v0.1.0";
+    sha256 = "02spz1521g59ar6rp0znnr01di766kknbjxjnygs39yn0cmpzqc1";
+  };
+}