[gnome-continuous-yocto/gnomeostree-3.28-rocko: 6730/8267] runqemu: check exit code of 'ls -t'

[Emmanuele Bassi <ebassi src gnome org>]

commit 1b11a653d0be6128b26ea9421c783c6e78f7549b
Author: Ed Bartosh <ed bartosh linux intel com>
Date:   Tue Jul 11 17:34:24 2017 +0300

    runqemu: check exit code of 'ls -t'
    
    Used check_output instead of Popen as it raises CalledProcessError
    exception when command exits with non-zero exit code.
    
    Catched the exception to produce user-friendly output.
    
    [YOCTO #11719]
    
    (From OE-Core rev: dac68d2323b0b630c019ce4d5256ed567eaf00da)
    
    Signed-off-by: Ed Bartosh <ed bartosh linux intel com>
    Signed-off-by: Ross Burton <ross burton intel com>
    Signed-off-by: Richard Purdie <richard purdie linuxfoundation org>

 scripts/runqemu |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)
---
diff --git a/scripts/runqemu b/scripts/runqemu
index c33741d..d44afc7 100755
--- a/scripts/runqemu
+++ b/scripts/runqemu
@@ -676,7 +676,10 @@ class BaseConfig(object):
             else:
                 cmd = 'ls -t %s/*.qemuboot.conf' %  deploy_dir_image
                 logger.info('Running %s...' % cmd)
-                qbs = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE).stdout.read().decode('utf-8')
+                try:
+                    qbs = subprocess.check_output(cmd, shell=True).decode('utf-8')
+                except subprocess.CalledProcessError as err:
+                    raise RunQemuError(err)
                 if qbs:
                     for qb in qbs.split():
                         # Don't use initramfs when other choices unless fstype is ramfs