kdiff3-qt5: init at 1.7.0

Upstream hasn't made a formal release yet of the qt5 version which is why I'm
not replacing the existing kde4 version.

pkgs/tools/text/kdiff3/kde5.nix

@@ -0,0 +1,37 @@
+{
+  kdeDerivation, kdeWrapper, lib, fetchgit,
+  ecm, kdoctools, kconfig, kinit, kparts
+}:
+
+let
+  rev = "468652ce70b1214842cef0a021c81d056ec6aa01";
+
+  unwrapped = kdeDerivation rec {
+    name = "kdiff3-${version}";
+    version = "1.7.0-${lib.strings.substring 0 7 rev}";
+
+    src = fetchgit {
+      url = "https://gitlab.com/tfischer/kdiff3";
+      sha256 = "126xl7jbb26v2970ba1rw1d6clhd14p1f2avcwvj8wzqmniq5y5m";
+      inherit rev;
+    };
+
+    preConfigure = "cd kdiff3";
+
+    nativeBuildInputs = [ ecm kdoctools ];
+
+    propagatedBuildInputs = [ kconfig kinit kparts ];
+
+    meta = with lib; {
+      homepage = http://kdiff3.sourceforge.net/;
+      license = licenses.gpl2Plus;
+      description = "Compares and merges 2 or 3 files or directories";
+      maintainers = with maintainers; [ viric urkud peterhoeg ];
+      platforms = with platforms; linux;
+    };
+  };
+
+in kdeWrapper {
+  inherit unwrapped;
+  targets = [ "bin/kdiff3" ];
+}

pkgs/top-level/all-packages.nix

@@ -2417,6 +2417,8 @@ with pkgs;
 
   kronometer = qt5.callPackage ../tools/misc/kronometer { };
 
+  kdiff3-qt5 = qt5.callPackage ../tools/text/kdiff3/kde5.nix { };
+
   peruse = qt5.callPackage ../tools/misc/peruse { };
 
   kst = qt5.callPackage ../tools/graphics/kst { gsl = gsl_1; };