autounmask-write: create /etc/portage if needed

diff --git a/pym/_emerge/depgraph.py b/pym/_emerge/depgraph.py
index 549ce7f2eadfd2c517cab66eb0780c51dbbc4a36..8219a773845f140cbb56bf0d81b862316948bc2d 100644 (file)
--- a/pym/_emerge/depgraph.py
+++ b/pym/_emerge/depgraph.py
@@ -30,6 +30,7 @@ from portage._sets import SETPREFIX
 from portage._sets.base import InternalPackageSet
 from portage.util import ConfigProtect, shlex_split, new_protect_filename
 from portage.util import cmp_sort_key, writemsg, writemsg_stdout
+from portage.util import ensure_dirs
 from portage.util import writemsg_level, write_atomic
 from portage.util.digraph import digraph
 from portage.util.listdir import _ignorecvs_dirs
@@ -5982,11 +5983,12 @@ class depgraph(object):
                        if userquery(prompt, enter_invalid) == 'No':
                                write_to_file = False
 
-               if write_to_file:
+               if write_to_file and file_to_write_to:
                        for root in roots:
                                settings = self._frozen_config.roots[root].settings
                                abs_user_config = os.path.join(
                                        settings["PORTAGE_CONFIGROOT"], USER_CONFIG_PATH)
+                               ensure_dirs(abs_user_config)
 
                                if root in unstable_keyword_msg:
                                        write_changes(root, unstable_keyword_msg[root],