oeqa.buildperf: be more verbose about failed commands

Log failures of commands whose output is stored.

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>

1 files changed, 9 insertions, 3 deletions

diff --git a/meta/lib/oeqa/buildperf/base.py b/meta/lib/oeqa/buildperf/base.py
index 52c2ab61bf..fe18181f2b 100644
--- a/meta/lib/oeqa/buildperf/base.py
+++ b/meta/lib/oeqa/buildperf/base.py
@@ -23,7 +23,7 @@ import unittest
 from datetime import datetime, timedelta
 from functools import partial
 
-from oeqa.utils.commands import runCmd, get_bb_vars
+from oeqa.utils.commands import CommandError, runCmd, get_bb_vars
 from oeqa.utils.git import GitError, GitRepo
 
 # Get logger for this module
@@ -216,9 +216,15 @@ class BuildPerfTestCase(unittest.TestCase):
 
     def log_cmd_output(self, cmd):
         """Run a command and log it's output"""
+        cmd_str = cmd if isinstance(cmd, str) else ' '.join(cmd)
+        log.info("Logging command: %s", cmd_str)
         cmd_log = os.path.join(self.out_dir, 'commands.log')
-        with open(cmd_log, 'a') as fobj:
-            runCmd2(cmd, stdout=fobj)
+        try:
+            with open(cmd_log, 'a') as fobj:
+                runCmd2(cmd, stdout=fobj)
+        except CommandError as err:
+            log.error("Command failed: %s", err.retcode)
+            raise
 
     def measure_cmd_resources(self, cmd, name, legend):
         """Measure system resource usage of a command"""