From 0c5eced78dd49c02186fcf99a0fbdcdf1a07e27a Mon Sep 17 00:00:00 2001
From: Chris Ostrouchov <chris.ostrouchov@gmail.com>
Date: Fri, 26 Oct 2018 13:14:28 -0400
Subject: [PATCH] pythonPackages.setuptoolsDarcs: refactor move to
 python-modules

---
 .../setuptoolsdarcs/default.nix               | 30 +++++++++++++++++++
 pkgs/top-level/python-packages.nix            | 25 +---------------
 2 files changed, 31 insertions(+), 24 deletions(-)
 create mode 100644 pkgs/development/python-modules/setuptoolsdarcs/default.nix

diff --git a/pkgs/development/python-modules/setuptoolsdarcs/default.nix b/pkgs/development/python-modules/setuptoolsdarcs/default.nix
new file mode 100644
index 00000000000..d696a5be08f
--- /dev/null
+++ b/pkgs/development/python-modules/setuptoolsdarcs/default.nix
@@ -0,0 +1,30 @@
+{ stdenv
+, buildPythonPackage
+, fetchPypi
+, darcsver
+}:
+
+buildPythonPackage rec {
+  pname = "setuptools_darcs";
+  version = "1.2.11";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "1wsh0g1fn10msqk87l5jrvzs0yj5mp6q9ld3gghz6zrhl9kqzdn1";
+  };
+
+  # In order to break the dependency on darcs -> ghc, we don't add
+  # darcs as a propagated build input.
+  propagatedBuildInputs = [ darcsver ];
+
+  # ugly hack to specify version that should otherwise come from darcs
+  patchPhase = ''
+    substituteInPlace setup.py --replace "name=PKG" "name=PKG, version='${version}'"
+  '';
+
+  meta = with stdenv.lib; {
+    description = "Setuptools plugin for the Darcs version control system";
+    homepage = http://allmydata.org/trac/setuptools_darcs;
+    license = licenses.bsd0;
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index bdaec829cfc..75634c88c48 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -3708,30 +3708,7 @@ in {
 
   setuptools_scm = callPackage ../development/python-modules/setuptools_scm { };
 
-  setuptoolsDarcs = buildPythonPackage rec {
-    name = "setuptools_darcs-${version}";
-    version = "1.2.11";
-
-    src = pkgs.fetchurl {
-      url = "mirror://pypi/s/setuptools_darcs/${name}.tar.gz";
-      sha256 = "1wsh0g1fn10msqk87l5jrvzs0yj5mp6q9ld3gghz6zrhl9kqzdn1";
-    };
-
-    # In order to break the dependency on darcs -> ghc, we don't add
-    # darcs as a propagated build input.
-    propagatedBuildInputs = with self; [ darcsver ];
-
-    # ugly hack to specify version that should otherwise come from darcs
-    patchPhase = ''
-      substituteInPlace setup.py --replace "name=PKG" "name=PKG, version='${version}'"
-    '';
-
-    meta = {
-      description = "Setuptools plugin for the Darcs version control system";
-      homepage = http://allmydata.org/trac/setuptools_darcs;
-      license = "BSD";
-    };
-  };
+  setuptoolsDarcs = callPackage ../development/python-modules/setuptoolsdarcs { };
 
   setuptoolsTrial = buildPythonPackage rec {
     name = "${pname}-${version}";