ssh, rsync: support using sudo on remote

This allows deployment of remote hosts without having ssh access to the
root user. Passwordless sudo is recommended since krops will use
multiple ssh sessions and the password will not be remembered.

Closes https://github.com/krebs/krops/issues/3

1 files changed, 3 insertions, 2 deletions

diff --git a/lib/default.nix b/lib/default.nix
index 48e005e..bed284d 100644
--- a/lib/default.nix
+++ b/lib/default.nix
@@ -46,12 +46,13 @@ let {
       default = defVal: val: if val != null then val else defVal;
       parse = lib.match "(([^@]+)@)?(([^:/]+))?(:([^/]+))?(/.*)?" s;
       elemAt' = xs: i: if lib.length xs > i then lib.elemAt xs i else null;
-    in {
+    in if lib.isString s then {
       user = default (lib.getEnv "LOGNAME") (elemAt' parse 1);
       host = default (lib.maybeEnv "HOSTNAME" lib.getHostName) (elemAt' parse 3);
       port = default "22" /* "ssh"? */ (elemAt' parse 5);
       path = default "/var/src" /* no default? */ (elemAt' parse 6);
-    };
+      sudo = false;
+    } else s;
 
     shell = let
       isSafeChar = lib.testString "[-+./0-9:=A-Z_a-z]";