236 lines
7.4 KiB
Python
236 lines
7.4 KiB
Python
# Copyright (c) 2013-2014 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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from oeqa.utils import CommandError
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from oeqa.utils import ftools
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import re
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import contextlib
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import bb
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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, assert_error=True, **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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if assert_error:
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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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else:
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raise CommandError(result.status, command, result.output)
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return result
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def bitbake(command, ignore_status=False, timeout=None, postconfig=None, **options):
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if postconfig:
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postconfig_file = os.path.join(os.environ.get('BUILDDIR'), 'oeqa-post.conf')
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ftools.write_file(postconfig_file, postconfig)
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extra_args = "-R %s" % postconfig_file
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else:
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extra_args = ""
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if isinstance(command, basestring):
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cmd = "bitbake " + extra_args + " " + command
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else:
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cmd = [ "bitbake" ] + [a for a in (command + extra_args.split(" ")) if a not in [""]]
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try:
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return runCmd(cmd, ignore_status, timeout, **options)
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finally:
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if postconfig:
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os.remove(postconfig_file)
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def get_bb_env(target=None, postconfig=None):
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if target:
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return bitbake("-e %s" % target, postconfig=postconfig).output
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else:
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return bitbake("-e", postconfig=postconfig).output
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def get_bb_var(var, target=None, postconfig=None):
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val = None
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bbenv = get_bb_env(target, postconfig=postconfig)
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lastline = None
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for line in bbenv.splitlines():
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if re.search("^(export )?%s=" % var, line):
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val = line.split('=', 1)[1]
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val = val.strip('\"')
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break
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elif re.match("unset %s$" % var, line):
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# Handle [unexport] variables
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if lastline.startswith('# "'):
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val = lastline.split('\"')[1]
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break
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lastline = line
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return val
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def get_test_layer():
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layers = get_bb_var("BBLAYERS").split()
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testlayer = None
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for l in layers:
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if '~' in l:
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l = os.path.expanduser(l)
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if "/meta-selftest" in l and os.path.isdir(l):
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testlayer = l
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break
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return testlayer
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def create_temp_layer(templayerdir, templayername, priority=999, recipepathspec='recipes-*/*'):
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os.makedirs(os.path.join(templayerdir, 'conf'))
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with open(os.path.join(templayerdir, 'conf', 'layer.conf'), 'w') as f:
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f.write('BBPATH .= ":${LAYERDIR}"\n')
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f.write('BBFILES += "${LAYERDIR}/%s/*.bb \\' % recipepathspec)
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f.write(' ${LAYERDIR}/%s/*.bbappend"\n' % recipepathspec)
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f.write('BBFILE_COLLECTIONS += "%s"\n' % templayername)
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f.write('BBFILE_PATTERN_%s = "^${LAYERDIR}/"\n' % templayername)
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f.write('BBFILE_PRIORITY_%s = "%d"\n' % (templayername, priority))
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f.write('BBFILE_PATTERN_IGNORE_EMPTY_%s = "1"\n' % templayername)
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@contextlib.contextmanager
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def runqemu(pn, ssh=True):
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import bb.tinfoil
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import bb.build
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tinfoil = bb.tinfoil.Tinfoil()
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tinfoil.prepare(False)
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try:
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tinfoil.logger.setLevel(logging.WARNING)
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import oeqa.targetcontrol
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tinfoil.config_data.setVar("TEST_LOG_DIR", "${WORKDIR}/testimage")
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tinfoil.config_data.setVar("TEST_QEMUBOOT_TIMEOUT", "1000")
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import oe.recipeutils
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recipefile = oe.recipeutils.pn_to_recipe(tinfoil.cooker, pn)
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recipedata = oe.recipeutils.parse_recipe(recipefile, [], tinfoil.config_data)
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# The QemuRunner log is saved out, but we need to ensure it is at the right
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# log level (and then ensure that since it's a child of the BitBake logger,
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# we disable propagation so we don't then see the log events on the console)
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logger = logging.getLogger('BitBake.QemuRunner')
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logger.setLevel(logging.DEBUG)
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logger.propagate = False
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logdir = recipedata.getVar("TEST_LOG_DIR", True)
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qemu = oeqa.targetcontrol.QemuTarget(recipedata)
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finally:
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# We need to shut down tinfoil early here in case we actually want
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# to run tinfoil-using utilities with the running QEMU instance.
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# Luckily QemuTarget doesn't need it after the constructor.
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tinfoil.shutdown()
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# Setup bitbake logger as console handler is removed by tinfoil.shutdown
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bblogger = logging.getLogger('BitBake')
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bblogger.setLevel(logging.INFO)
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console = logging.StreamHandler(sys.stdout)
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bbformat = bb.msg.BBLogFormatter("%(levelname)s: %(message)s")
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if sys.stdout.isatty():
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bbformat.enable_color()
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console.setFormatter(bbformat)
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bblogger.addHandler(console)
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try:
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qemu.deploy()
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try:
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qemu.start(ssh=ssh)
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except bb.build.FuncFailed:
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raise Exception('Failed to start QEMU - see the logs in %s' % logdir)
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yield qemu
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finally:
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try:
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qemu.stop()
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except:
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pass
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