Adding 'duplicity', and its dependency 'librsync'

svn path=/nixpkgs/trunk/; revision=19813

pkgs/development/libraries/librsync/default.nix

@@ -0,0 +1,20 @@
+{stdenv, fetchurl}:
+
+stdenv.mkDerivation {
+  name = "librsync-0.9.7";
+  
+  src = fetchurl {
+    url = mirror://sourceforge/librsync/librsync-0.9.7.tar.gz;
+    sha256 = "1mj1pj99mgf1a59q9f2mxjli2fzxpnf55233pc1klxk2arhf8cv6";
+  };
+
+  # To allow x86_64 linking to the static lib to make a shared object
+  # like for the package 'duplicity'
+  CFLAGS="-fPIC";
+
+  meta = {
+    homepage = http://librsync.sourceforge.net/;
+    license = "LGPLv2+";
+    description = "Implementation of the rsync remote-delta algorithm";
+  };
+}

pkgs/tools/backup/duplicity/default.nix

@@ -0,0 +1,24 @@
+{stdenv, fetchurl, python, librsync, makeWrapper}:
+stdenv.mkDerivation {
+  name = "duplicity-0.6.06";
+
+  src = fetchurl {
+    url = http://code.launchpad.net/duplicity/0.6-series/0.6.06/+download/duplicity-0.6.06.tar.gz;
+    sha256 = "1g284y24061krigs386x5s7vs7cnwhah7g1mfk9jfn3gzsidv70g";
+  };
+
+  installPhase = ''
+    python setup.py install --prefix=$out
+    wrapProgram $out/bin/duplicity --prefix PYTHONPATH : "$(toPythonPath $out)"
+  '';
+
+  buildInputs = [python librsync makeWrapper];
+
+  meta = {
+    description = "Encrypted bandwidth-efficient backup using the rsync algorithm";
+    homepage = http://www.nongnu.org/duplicity;
+    license = "GPLv2+";
+    maintainers = with stdenv.lib.maintainers; [viric];
+    platforms = with stdenv.lib.platforms; linux;
+  };
+}

pkgs/top-level/all-packages.nix

@@ -600,6 +600,10 @@ let
     inherit builderDefs;
   };
 
+  duplicity = import ../tools/backup/duplicity {
+    inherit fetchurl stdenv librsync makeWrapper python;
+  };
+
   dvdplusrwtools = import ../tools/cd-dvd/dvd+rw-tools {
     inherit fetchurl stdenv cdrkit m4;
   };
@@ -4162,6 +4166,10 @@ let
     inherit fetchurl stdenv pkgconfig ncurses glib;
   };
 
+  librsync = import ../development/libraries/librsync {
+    inherit stdenv fetchurl;
+  };
+
   libsigcxx = import ../development/libraries/libsigcxx {
     inherit fetchurl stdenv pkgconfig;
   };