athens: init at 0.12.1

Co-authored-by: Paul Meyer <49727155+katexochen@users.noreply.github.com>

pkgs/by-name/at/athens/package.nix

@@ -0,0 +1,37 @@
+{ lib
+, fetchFromGitHub
+, buildGo121Module
+}:
+buildGo121Module rec {
+  pname = "athens";
+  version = "0.12.1";
+
+  src = fetchFromGitHub {
+    owner = "gomods";
+    repo = pname;
+    rev = "v${version}";
+    hash = "sha256-m75Ut1UVwz7uWneBwPxUL7aPOXIpy6YPqIXMwczHOpY=";
+  };
+
+  vendorHash = "sha256-zK4EE242Gbgew33oxAUNxylKdhRdPhqP0Hrpu4sYiFg=";
+
+  CGO_ENABLED = "0";
+  ldflags = [ "-s" "-w" "-buildid=" "-X github.com/gomods/athens/pkg/build.version=${version}" ];
+  flags = [ "-trimpath" ];
+
+  subPackages = [ "cmd/proxy" ];
+
+  postInstall = ''
+    mv $out/bin/proxy $out/bin/athens
+  '';
+
+  meta = with lib; {
+    description = "A Go module datastore and proxy";
+    homepage = "https://github.com/gomods/athens";
+    changelog = "https://github.com/gomods/athens/releases/tag/v${version}";
+    license = licenses.mit;
+    mainProgram = "athens";
+    maintainers = with maintainers; [ katexochen malt3 ];
+    platforms = platforms.unix;
+  };
+}