added file flag preservation to atomic_move

preserves existing flag info if possible

lib/ansible/module_utils/basic.py

@@ -2007,8 +2007,22 @@ class AnsibleModule(object):
         if os.path.exists(b_dest):
             try:
                 dest_stat = os.stat(b_dest)
+
+                # copy mode and ownership
                 os.chmod(b_src, dest_stat.st_mode & PERM_BITS)
                 os.chown(b_src, dest_stat.st_uid, dest_stat.st_gid)
+
+                # try to copy flags if possible
+                if hasattr(os, 'chflags') and hasattr(dest_stat, 'st_flags'):
+                    try:
+                        os.chflags(b_src, dest_stat.st_flags)
+                    except OSError:
+                        e = get_exception()
+                        for err in 'EOPNOTSUPP', 'ENOTSUP':
+                            if hasattr(errno, err) and e.errno == getattr(errno, err):
+                                break
+                        else:
+                            raise
             except OSError:
                 e = get_exception()
                 if e.errno != errno.EPERM: