Added darcsum, "a pcl-cvs like interface for managing darcs patches".

lib/maintainers.nix

@@ -24,6 +24,7 @@
   edwtjo = "Edward Tjörnhammar <ed@cflags.cc>";
   eelco = "Eelco Dolstra <eelco.dolstra@logicblox.com>";
   ertes = "Ertugrul Söylemez <es@ertes.de>";
+  falsifian = "James Cook <james.cook@utoronto.ca>";
   garbas = "Rok Garbas <rok@garbas.si>";
   goibhniu = "Cillian de Róiste <cillian.deroiste@gmail.com>";
   guibert = "David Guibert <david.guibert@gmail.com>";

pkgs/applications/editors/emacs-modes/darcsum/darcs_context

@@ -0,0 +1,7 @@
+
+Context:
+
+[TAG 1.3
+Simon Michael <simon@joyful.com>**20131103203640
+ Ignore-this: d12bac373e4aa0e5ffe6c390e1dfe269
+] 

pkgs/applications/editors/emacs-modes/darcsum/default.nix

@@ -0,0 +1,34 @@
+# To automatically load darcsum when needed, add the following to your emacs init file:
+#
+#   (autoload 'darcsum-changes "darcsum" nil t)
+#   (autoload 'darcsum-whatsnew "darcsum" nil t)
+#   (autoload 'darcsum-view "darcsum" nil t)
+#
+# (These lines were copied from 50darcsum.el in the darcsum repository.)
+
+
+{ fetchdarcs, stdenv }:
+
+stdenv.mkDerivation {
+  name = "darcsum-1.3";
+
+  src = fetchdarcs {
+    url = http://hub.darcs.net/simon/darcsum;
+    context = ./darcs_context;
+    sha256 = "18dyk2apmnjapd604a5njfqwjri1mc7lgjaajy9phicpibgdrwzh";
+  };
+
+  phases = [ "unpackPhase" "installPhase" ];
+
+  installPhase = ''
+    install -d "$out/share/emacs/site-lisp"
+    install darcsum.el "$out/share/emacs/site-lisp"
+  '';
+
+  meta = {
+    description = "A pcl-cvs like interface for managing darcs patches.";
+    homepage = "http://hub.darcs.net/simon/darcsum";
+    license = "GPLv2+";
+    maintainers = [ stdenv.lib.maintainers.falsifian ];
+  };
+}

pkgs/top-level/all-packages.nix

@@ -7756,6 +7756,8 @@ let
 
     cua = callPackage ../applications/editors/emacs-modes/cua { };
 
+    darcsum = callPackage ../applications/editors/emacs-modes/darcsum { };
+
     # ecb = callPackage ../applications/editors/emacs-modes/ecb { };
 
     jabber = callPackage ../applications/editors/emacs-modes/jabber { };