Add exclude_dirnames value.

1 files changed, 2 insertions, 0 deletions

diff --git a/sphinx/builder.py b/sphinx/builder.py
index adf77007..d76717b6 100644
--- a/sphinx/builder.py
+++ b/sphinx/builder.py
@@ -639,6 +639,8 @@ class StandaloneHTMLBuilder(Builder):
                 if path.isfile(fullname):
                     shutil.copyfile(fullname, targetname)
                 elif path.isdir(fullname):
+                    if filename in self.config.exclude_dirnames:
+                        continue
                     if path.exists(targetname):
                         shutil.rmtree(targetname)
                     shutil.copytree(fullname, targetname)