138 lines
3.7 KiB
Python
138 lines
3.7 KiB
Python
# Copyright (c) 2013 Intel Corporation
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#
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# Released under the MIT license (see COPYING.MIT)
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# DESCRIPTION
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# This module is mainly used by scripts/oe-selftest and modules under meta/oeqa/selftest
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# It provides a class and methods for running commands on the host in a convienent way for tests.
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import os
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import sys
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import signal
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import subprocess
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import threading
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import logging
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class Command(object):
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def __init__(self, command, bg=False, timeout=None, data=None, **options):
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self.defaultopts = {
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"stdout": subprocess.PIPE,
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"stderr": subprocess.STDOUT,
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"stdin": None,
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"shell": False,
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"bufsize": -1,
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}
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self.cmd = command
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self.bg = bg
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self.timeout = timeout
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self.data = data
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self.options = dict(self.defaultopts)
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if isinstance(self.cmd, basestring):
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self.options["shell"] = True
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if self.data:
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self.options['stdin'] = subprocess.PIPE
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self.options.update(options)
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self.status = None
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self.output = None
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self.error = None
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self.thread = None
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self.log = logging.getLogger("utils.commands")
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def run(self):
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self.process = subprocess.Popen(self.cmd, **self.options)
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def commThread():
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self.output, self.error = self.process.communicate(self.data)
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self.thread = threading.Thread(target=commThread)
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self.thread.start()
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self.log.debug("Running command '%s'" % self.cmd)
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if not self.bg:
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self.thread.join(self.timeout)
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self.stop()
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def stop(self):
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if self.thread.isAlive():
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self.process.terminate()
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# let's give it more time to terminate gracefully before killing it
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self.thread.join(5)
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if self.thread.isAlive():
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self.process.kill()
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self.thread.join()
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self.output = self.output.rstrip()
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self.status = self.process.poll()
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self.log.debug("Command '%s' returned %d as exit code." % (self.cmd, self.status))
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# logging the complete output is insane
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# bitbake -e output is really big
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# and makes the log file useless
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if self.status:
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lout = "\n".join(self.output.splitlines()[-20:])
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self.log.debug("Last 20 lines:\n%s" % lout)
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class Result(object):
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pass
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def runCmd(command, ignore_status=False, timeout=None, **options):
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result = Result()
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cmd = Command(command, timeout=timeout, **options)
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cmd.run()
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result.command = command
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result.status = cmd.status
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result.output = cmd.output
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result.pid = cmd.process.pid
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if result.status and not ignore_status:
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raise AssertionError("Command '%s' returned non-zero exit status %d:\n%s" % (command, result.status, result.output))
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return result
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def bitbake(command, ignore_status=False, timeout=None, **options):
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if isinstance(command, basestring):
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cmd = "bitbake " + command
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else:
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cmd = [ "bitbake" ] + command
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return runCmd(cmd, ignore_status, timeout, **options)
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def get_bb_env(target=None):
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if target:
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return runCmd("bitbake -e %s" % target).output
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else:
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return runCmd("bitbake -e").output
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def get_bb_var(var, target=None):
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val = None
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bbenv = get_bb_env(target)
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for line in bbenv.splitlines():
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if line.startswith(var + "="):
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val = line.split('=')[1]
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val = val.replace('\"','')
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break
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return val
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def get_test_layer():
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layers = get_bb_var("BBLAYERS").split()
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testlayer = None
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for l in layers:
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if "/meta-selftest" in l and os.path.isdir(l):
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testlayer = l
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break
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return testlayer
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