no special case for rsync in core. handle implementation specific details in remote-copy script instead

Signed-off-by: Steven Armstrong <steven@icarus.ethz.ch>

lib/cdist/exec/remote.py

@@ -77,12 +77,7 @@ class Remote(object):
         self.log.debug("Remote transfer: %s -> %s", source, destination)
         self.rmdir(destination)
         command = self._copy.split()
-        # support rsync by appending a "/" to the source if it's a directory
+        command.extend(["-r", source, self.target_host + ":" + destination])
-        if os.path.isdir(source):
-           command.extend(["-r", source + "/", self.target_host + ":" + destination])
-        else:
-           command.extend(["-r", source, self.target_host + ":" + destination])
-
         self._run_command(command)
 
     def run_script(self, script, env=None, return_output=False):

other/examples/remote/rsync/copy

@@ -24,7 +24,24 @@
 # at /etc/passwd~cdist.
 #
 # Usage:
-#  __remote_copy="/path/to/this/script" cdist config target_host
+#  cdist config --remote-copy /path/to/this/script target_host
 #
 
+# second last argument is the source
+source_index=$(($#-1))
+index=0
+for arg in $@; do
+   if [ $index -eq 0 ]; then
+      # reset $@
+      set -- 
+   fi
+   index=$((index+=1))
+   if [ $index -eq $source_index -a -d "$arg" ]; then
+      echo "directory: $arg" | logger
+      # if the source is a directory, it has to end with "/" for rsync to do the right thing
+      arg="${arg%/}/"
+   fi
+   set -- "$@" "$arg"
+done
+
 rsync --backup --suffix=~cdist -e 'ssh -o User=root' $@