[__git]: Change default behaviour for --mode parameter

By default it only applies to the top-level directory, that way any permissions
that are specified in git are respected after cloning.

Old behaviour can be obtained with the new `--mode-recursive` parameter.

Closes #818.

cdist/conf/type/__git/gencode-remote

@@ -52,8 +52,11 @@ case $state_should in
            { [ -n "$group" ] && [ "$group_is" != "$group" ]; }; then
             echo chown -R "${owner}:${group}" "$destination"
         fi
+        if [ -f "$__object/parameter/mode-recursive" ]; then
+            mode_recursive="-R"
+        fi
         if [ -n "$mode" ]; then
-            echo chmod -R "$mode" "$destination"
+            echo chmod "${mode_recursive}" "$mode" "$destination"
         fi
     ;;
 

cdist/conf/type/__git/man.rst

@@ -31,10 +31,18 @@ group
 
 mode
    Unix permissions, suitable for chmod.
+   By default it only applies to the top-level directory.
+   See the mode-recursive parameter as well.
 
 owner
    User to chown to.
 
+BOOLEAN PARAMETERS
+------------------
+mode-recursive
+   If present and --mode is passed, the given permissions will be applied
+   recursively to the working directory.
+
 recursive
    Passes the --recurse-submodules flag to git when cloning the repository.
 

cdist/conf/type/__git/parameter/boolean

@@ -1,2 +1,3 @@
+mode-recursive
 recursive
 shallow