upgrade ansible to 2.8.0.dev0

nix/ansible/default.nix

@@ -12,14 +12,16 @@ pythonPackages.buildPythonPackage rec {
   src = fetchFromGitHub {
     owner = "ansible";
     repo = "ansible";
-    rev = "f0fd0f219de80a8f682b80e1ccdb83fd4988da64";
-    sha256 = "128847r4bc650lcpc2z1wxjgdnh07zhxfd9m2bi3wfl069dvhjk9";
+    rev = "1724b633f2fdc4c8d49e634d44864ef5e2e2d4c6";
+    sha256 = "0lnql1ilcz174c0vy9hz8wa099x4z253izf55akji5b6ng31yqkv";
   };
 
   prePatch = ''
     sed -i "s,/usr/,$out," lib/ansible/constants.py
   '';
 
+  patches = [ ./revert_path_check.patch ];
+
   doCheck = false;
   dontStrip = true;
   dontPatchELF = true;

nix/ansible/revert_path_check.patch

@@ -0,0 +1,12 @@
+--- a/lib/ansible/plugins/connection/local.py 1970-01-01 00:00:01.000000000 +0000
++++ b/lib/ansible/plugins/connection/local.py  2018-10-25 11:19:32.820130379 +0000
+@@ -65,10 +65,6 @@
+ 
+         executable = C.DEFAULT_EXECUTABLE.split()[0] if C.DEFAULT_EXECUTABLE else None
+ 
+-        if not os.path.exists(to_bytes(executable, errors='surrogate_or_strict')):
+-            raise AnsibleError("failed to find the executable specified %s."
+-                               " Please verify if the executable exists and re-try." % executable)
+-
+         display.vvv(u"EXEC {0}".format(to_text(cmd)), host=self._play_context.remote_addr)
+         display.debug("opening command with Popen()")