From f73d05b3b216e238f0d54655901374ff1fc6af5f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=BCrg=20Billeter?= <j@bitron.ch>
Date: Mon, 25 Mar 2019 07:47:30 +0100
Subject: _stream.py: Check whether logs are cached in artifact_log()

---
 buildstream/_stream.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/buildstream/_stream.py b/buildstream/_stream.py
index 262b38852..d77b8d33b 100644
--- a/buildstream/_stream.py
+++ b/buildstream/_stream.py
@@ -523,6 +523,9 @@ class Stream():
             if not obj._cached():
                 self._message(MessageType.WARN, "{} is not cached".format(ref))
                 continue
+            elif not obj._cached_logs():
+                self._message(MessageType.WARN, "{} is cached without log files".format(ref))
+                continue
 
             logsdirs.append(self._artifacts.get_artifact_logs(ref))
 
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