[gnome-continuous-yocto/gnomeostree-3.28-rocko: 4767/8267] bitbake: process: stop bb.process.communicate mixing bytes and str return types

[Emmanuele Bassi <ebassi src gnome org>]

commit 7b75bf85059f0d4fc873b27d31ff17eb97815db9
Author: Mike Crowe <mac mcrowe com>
Date:   Fri Feb 24 16:20:04 2017 +0000

    bitbake: process: stop bb.process.communicate mixing bytes and str return types
    
    Python3 regards b"" as False so it is not being converted to a string by
    d0f904d407f57998419bd9c305ce53e5eaa36b24. This confusingly causes three
    different potential types for each member of the returned tuple.
    
    Let's just assume that everything that's not None is a bytes object and
    convert it to a string.
    
    (Bitbake rev: 0cf5589b7fb3582a6caca5014c4d8152347df545)
    
    Signed-off-by: Mike Crowe <mac mcrowe com>
    Signed-off-by: Richard Purdie <richard purdie linuxfoundation org>

 bitbake/lib/bb/process.py |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/bitbake/lib/bb/process.py b/bitbake/lib/bb/process.py
index c62d7bc..a4a5599 100644
--- a/bitbake/lib/bb/process.py
+++ b/bitbake/lib/bb/process.py
@@ -162,9 +162,9 @@ def run(cmd, input=None, log=None, extrafiles=None, **options):
         stdout, stderr = _logged_communicate(pipe, log, input, extrafiles)
     else:
         stdout, stderr = pipe.communicate(input)
-        if stdout:
+        if not stdout is None:
             stdout = stdout.decode("utf-8")
-        if stderr:
+        if not stderr is None:
             stderr = stderr.decode("utf-8")
 
     if pipe.returncode != 0: