emacs: add "jade-mode"

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

@@ -0,0 +1,30 @@
+{ stdenv, fetchgit, emacs }:
+
+stdenv.mkDerivation {
+  name = "jade-mode-0-20120802";
+
+  src = fetchgit {
+    url = "https://github.com/brianc/jade-mode.git";
+    rev = "275ab149edb0f6bcfae6ac17ba456f3351191604";
+    sha256 = "3cd2bebcd66e59d60b8e5e538e65a8ffdfc9a53b86443090a284e8329d7cb09b";
+  };
+
+  buildInputs = [ emacs ];
+
+  buildPhase = ''
+    emacs --batch -L . -f batch-byte-compile *.el
+  '';
+
+  installPhase = ''
+    mkdir -p $out/share/emacs/site-lisp
+    cp *.el *.elc $out/share/emacs/site-lisp/
+  '';
+
+  meta = {
+    description = "Emacs major mode for jade and stylus.";
+    homepage = https://github.com/brianc/jade-mode;
+    license = "GPLv2+";
+
+    platforms = stdenv.lib.platforms.all;
+  };
+}

pkgs/top-level/all-packages.nix

@@ -6688,6 +6688,8 @@ let
 
     gist = callPackage ../applications/editors/emacs-modes/gist { };
 
+    jade = callPackage ../applications/editors/emacs-modes/jade { };
+
     jdee = callPackage ../applications/editors/emacs-modes/jdee {
       # Requires Emacs 23, for `avl-tree'.
     };