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import os
import sys
import errno
import datetime
import itertools
from commands import runCmd
def get_host_dumper(d):
cmds = d.getVar("testimage_dump_host", True)
parent_dir = d.getVar("TESTIMAGE_DUMP_DIR", True)
return HostDumper(cmds, parent_dir)
class BaseDumper(object):
""" Base class to dump commands from host/target """
def __init__(self, cmds, parent_dir):
self.cmds = []
# Some testing doesn't inherit testimage, so it is needed
# to set some defaults.
self.parent_dir = parent_dir or "/tmp/oe-saved-tests"
dft_cmds = """ top -bn1
iostat -x -z -N -d -p ALL 20 2
ps -ef
free
df
memstat
dmesg
ip -s link
netstat -an"""
if not cmds:
cmds = dft_cmds
for cmd in cmds.split('\n'):
cmd = cmd.lstrip()
if not cmd or cmd[0] == '#':
continue
self.cmds.append(cmd)
def create_dir(self, dir_suffix):
dump_subdir = ("%s_%s" % (
datetime.datetime.now().strftime('%Y%m%d%H%M'),
dir_suffix))
dump_dir = os.path.join(self.parent_dir, dump_subdir)
try:
os.makedirs(dump_dir)
except OSError as err:
if err.errno != errno.EEXIST:
raise err
self.dump_dir = dump_dir
def _write_dump(self, command, output):
if isinstance(self, HostDumper):
prefix = "host"
elif isinstance(self, TargetDumper):
prefix = "target"
else:
prefix = "unknown"
for i in itertools.count():
filename = "%s_%02d_%s" % (prefix, i, command)
fullname = os.path.join(self.dump_dir, filename)
if not os.path.exists(fullname):
break
with open(fullname, 'w') as dump_file:
dump_file.write(output)
class HostDumper(BaseDumper):
""" Class to get dumps from the host running the tests """
def __init__(self, cmds, parent_dir):
super(HostDumper, self).__init__(cmds, parent_dir)
def dump_host(self, dump_dir=""):
if dump_dir:
self.dump_dir = dump_dir
for cmd in self.cmds:
result = runCmd(cmd, ignore_status=True)
self._write_dump(cmd.split()[0], result.output)
class TargetDumper(BaseDumper):
""" Class to get dumps from target, it only works with QemuRunner """
def __init__(self, cmds, parent_dir, qemurunner):
super(TargetDumper, self).__init__(cmds, parent_dir)
self.runner = qemurunner
def dump_target(self, dump_dir=""):
if dump_dir:
self.dump_dir = dump_dir
for cmd in self.cmds:
# We can continue with the testing if serial commands fail
try:
(status, output) = self.runner.run_serial(cmd)
self._write_dump(cmd.split()[0], output)
except:
print("Tried to dump info from target but "
"serial console failed")
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