tarsnapper: 0.2.1 -> 0.4

- project is not a python library -> move out of pythonPackages.
- also enable tests

pkgs/tools/backup/tarsnapper/default.nix

@@ -0,0 +1,25 @@
+{ python3Packages, fetchFromGitHub , tarsnap }:
+
+python3Packages.buildPythonApplication rec {
+  name = "tarsnapper-${version}";
+  version = "0.4";
+
+  src = fetchFromGitHub {
+    owner = "miracle2k";
+    repo = "tarsnapper";
+    rev = version;
+    sha256 = "03db49188f4v1946c8mqqj30ah10x68hbg3a58js0syai32v12pm";
+  };
+
+  buildInputs = with python3Packages; [ nose pytest ];
+
+  checkPhase = ''
+    py.test .
+  '';
+
+  propagatedBuildInputs = with python3Packages; [ pyyaml dateutil pexpect ];
+
+  patches = [ ./remove-argparse.patch ];
+
+  makeWrapperArgs = ["--prefix PATH : ${tarsnap}/bin"];
+}

pkgs/tools/backup/tarsnapper/remove-argparse.patch

@@ -0,0 +1,10 @@
+--- tarsnapper-0.4-src.org/setup.py	1980-01-02 00:00:00.000000000 +0000
++++ tarsnapper-0.4-src/setup.py	2017-07-16 10:54:36.596499451 +0100
+@@ -45,6 +45,6 @@
+       url='http://github.com/miracle2k/tarsnapper',
+       license='BSD',
+       packages=['tarsnapper'],
+-      install_requires = ['argparse>=1.1', 'pyyaml>=3.09', 'python-dateutil>=2.4.0', 'pexpect>=3.1'],
++      install_requires = ['pyyaml>=3.09', 'python-dateutil>=2.4.0', 'pexpect>=3.1'],
+       **kw
+ )