{ stdenv, buildGoPackage, fetchFromGitHub }: buildGoPackage rec { name = "postfix_exporter-unstable-${version}"; version = "2017-06-01"; rev = "a8b4bed735a03f234fcfffba85302f51025e6b1d"; goPackagePath = "github.com/kumina/postfix_exporter"; src = fetchFromGitHub { owner = "kumina"; repo = "postfix_exporter"; inherit rev; sha256 = "0rxvjpyjcvr1y8k8skq5f1bnl0mpgvaa04dn8c44v7afqnv78riy"; }; goDeps = ./postfix-exporter-deps.nix; meta = with stdenv.lib; { inherit (src.meta) homepage; description = "A Prometheus exporter for Postfix"; license = licenses.asl20; maintainers = with maintainers; [ willibutz ]; }; }