From 34a2ed8107f8fc6aaade2215f8283648d5185905 Mon Sep 17 00:00:00 2001
From: Tiago Gomes <tiago.gomes@codethink.co.uk>
Date: Thu, 2 Aug 2018 17:42:29 +0100
Subject: cas: ignore files of type socket

These files are automatically generated on the bind() syscall and thus
can be safely ignored.

This fixes caching the build tree of projects that create a socket as
part of their tests.

Closes #500.
---
 buildstream/_artifactcache/cascache.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/buildstream/_artifactcache/cascache.py b/buildstream/_artifactcache/cascache.py
index 1b2dc198f..2cf91def4 100644
--- a/buildstream/_artifactcache/cascache.py
+++ b/buildstream/_artifactcache/cascache.py
@@ -612,6 +612,8 @@ class CASCache(ArtifactCache):
                 symlinknode = directory.symlinks.add()
                 symlinknode.name = name
                 symlinknode.target = os.readlink(full_path)
+            elif stat.S_ISSOCK(mode):
+                pass
             else:
                 raise ArtifactError("Unsupported file type for {}".format(full_path))
 
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