PollScheduler: handle missing log directory

This can be triggered by AbstractPollTask._log_poll_exception(), as
reported by Michael Haubenwallner <haubi@gentoo.org> for AIX.

1 files changed, 23 insertions, 12 deletions

diff --git a/pym/_emerge/PollScheduler.py b/pym/_emerge/PollScheduler.py
index 8f4bd64b9..043f02a8b 100644
--- a/pym/_emerge/PollScheduler.py
+++ b/pym/_emerge/PollScheduler.py
@@ -2,6 +2,7 @@
 # Distributed under the terms of the GNU General Public License v2
 
 import gzip
+import errno
 import logging
 import select
 import time
@@ -318,22 +319,32 @@ class PollScheduler(object):
 			# (like for parallel-fetch), then use the global value.
 			background = self._background
 
+		msg_shown = False
 		if not background:
 			writemsg_level(msg, level=level, noiselevel=noiselevel)
+			msg_shown = True
 
 		if log_path is not None:
-			f = open(_unicode_encode(log_path,
-				encoding=_encodings['fs'], errors='strict'),
-				mode='ab')
-
-			if log_path.endswith('.gz'):
-				# NOTE: The empty filename argument prevents us from triggering
-				# a bug in python3 which causes GzipFile to raise AttributeError
-				# if fileobj.name is bytes instead of unicode.
-				f =  gzip.GzipFile(filename='', mode='ab', fileobj=f)
-
-			f.write(_unicode_encode(msg))
-			f.close()
+			try:
+				f = open(_unicode_encode(log_path,
+					encoding=_encodings['fs'], errors='strict'),
+					mode='ab')
+			except IOError as e:
+				if e.errno not in (errno.ENOENT, errno.ESTALE):
+					raise
+				if not msg_shown:
+					writemsg_level(msg, level=level, noiselevel=noiselevel)
+			else:
+
+				if log_path.endswith('.gz'):
+					# NOTE: The empty filename argument prevents us from
+					# triggering a bug in python3 which causes GzipFile
+					# to raise AttributeError if fileobj.name is bytes
+					# instead of unicode.
+					f =  gzip.GzipFile(filename='', mode='ab', fileobj=f)
+
+				f.write(_unicode_encode(msg))
+				f.close()
 
 _can_poll_device = None