/usr/lib/python3/dist-packages/reprotest/lib/adt_testbed.py is in reprotest 0.7.7.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# autopkgtest is a tool for testing Debian binary packages
#
# autopkgtest is Copyright (C) 2006-2015 Canonical Ltd.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
#
# See the file CREDITS for a full list of credits information (often
# installed as /usr/share/doc/autopkgtest/CREDITS).
import os
import sys
import errno
import time
import pipes
import traceback
import re
import signal
import subprocess
import tempfile
import shutil
import distro
import urllib.parse
# Don't need this in reprotest, try to be distro-agnostic
#from debian import debian_support
from reprotest.lib.system_interface.debian import DebianInterface
from reprotest.lib.system_interface.arch import ArchInterface
from reprotest.lib import adtlog
from reprotest.lib import VirtSubproc
SYSTEM_INTERFACES = {
'debian': DebianInterface,
'arch': ArchInterface
}
timeouts = {'short': 100, 'copy': 300, 'install': 3000, 'test': 10000,
'build': 100000}
class Testbed:
def __init__(self, vserver_argv, output_dir, user,
setup_commands=[], setup_commands_boot=[], add_apt_pockets=[],
copy_files=[], host_distro=None):
self.sp = None
self.lastsend = None
self.scratch = None
self.modified = False
self._need_reset_apt = False
self.stop_sent = False
self.system_arch = None
self.exec_cmd = None
self.output_dir = output_dir
self.shared_downtmp = None # testbed's downtmp on the host, if supported
self.vserver_argv = vserver_argv
self.install_tmp_env = []
self.user = user
self.setup_commands = setup_commands
self.setup_commands_boot = setup_commands_boot
self.add_apt_pockets = add_apt_pockets
self.copy_files = copy_files
self.initial_kernel_version = None
# tests might install a different kernel; [(testname, reboot_marker, kver)]
self.test_kernel_versions = []
# used for tracking kernel version changes
self.last_test_name = ''
self.last_reboot_marker = ''
self.eatmydata_prefix = []
self.apt_pin_for_pockets = []
self.nproc = None
self.cpu_model = None
self.cpu_flags = None
try:
self.devnull = subprocess.DEVNULL
except AttributeError:
self.devnull = open(os.devnull, 'rb')
if not host_distro:
host_distro = distro.id()
adtlog.info("Tried distro auto-detection, got %r" % host_distro)
if host_distro in SYSTEM_INTERFACES:
self.system_interface = SYSTEM_INTERFACES[host_distro]()
else:
# The host_distro provided is not available.
# Let's play it cool
adtlog.warning("Could not load target distro keychain. "
"Falling back to Debian")
self.system_interface = DebianInterface()
adtlog.debug('testbed init')
def start(self):
# are we running from a checkout?
root_dir = os.path.dirname(os.path.dirname(os.path.realpath(__file__)))
if os.path.exists(os.path.join(root_dir, '.git')):
try:
head = subprocess.check_output(['git', 'show', '--no-patch', '--oneline'],
cwd=root_dir)
head = head.decode('UTF-8').strip()
except OSError:
head = 'cannot determine current HEAD'
adtlog.info('git checkout: %s' % head)
else:
adtlog.info('version @version@')
# log command line invocation for the log
adtlog.info('host %s; command line: %s' % (
os.uname()[1], ' '.join([pipes.quote(w) for w in sys.argv])))
self.sp = subprocess.Popen(self.vserver_argv,
stdin=subprocess.PIPE,
stdout=subprocess.PIPE,
universal_newlines=True)
self.expect('ok', 0)
def stop(self):
adtlog.debug('testbed stop')
if self.stop_sent:
# avoid endless loop
return
self.stop_sent = True
self.close()
if self.sp is None:
return
ec = self.sp.returncode
if ec is None:
self.sp.stdout.close()
self.send('quit')
self.sp.stdin.close()
ec = self.sp.wait()
if ec:
self.bomb('testbed gave exit status %d after quit' % ec)
self.sp = None
def open(self):
adtlog.debug('testbed open, scratch=%s' % self.scratch)
if self.scratch is not None:
return
pl = self.command('open', (), 1)
self._opened(pl)
def post_boot_setup(self):
'''Setup after (re)booting the test bed'''
# provide autopkgtest-reboot command, if reboot is supported; /run is
# usually "noexec" and /[s]bin might be readonly, so create in /tmp
if 'reboot' in self.caps and 'root-on-testbed' in self.caps:
adtlog.debug('testbed supports reboot, creating /tmp/autopkgtest-reboot')
self.execute(['sh', '-ecC', '''[ ! -e /tmp/autopkgtest-reboot ] || exit 0; '''
'''/bin/echo -e '#!/bin/sh -e\\n'''
'''[ -n "$1" ] || { echo "Usage: $0 <mark>" >&2; exit 1; }\\n'''
'''echo "$1" > /run/autopkgtest-reboot-mark\\n'''
'''test_script_pid=$(cat /tmp/autopkgtest_script_pid)\\n'''
'''p=$PPID; while true; do read _ c _ pp _ < /proc/$p/stat;'''
''' [ $pp -ne $test_script_pid ] || break; p=$pp; done\\n'''
'''kill -KILL $p\\n' > /tmp/autopkgtest-reboot;'''
'''chmod 755 /tmp/autopkgtest-reboot;'''
'''[ -L /sbin/autopkgtest-reboot ] || ln -s '''
''' /tmp/autopkgtest-reboot /sbin/autopkgtest-reboot 2>/dev/null || true'''])
self.execute(['sh', '-ecC', '''[ ! -e /tmp/autopkgtest-reboot-prepare ] || exit 0; '''
'''/bin/echo -e '#!/bin/sh -e\\n'''
'''[ -n "$1" ] || { echo "Usage: $0 <mark>" >&2; exit 1; }\\n'''
'''echo "$1" > /run/autopkgtest-reboot-prepare-mark\\n'''
'''test_script_pid=$(cat /tmp/autopkgtest_script_pid)\\n'''
'''kill -KILL $test_script_pid\\n'''
'''while [ -e /run/autopkgtest-reboot-prepare-mark ]; do sleep 0.5; done\\n'''
''' '> /tmp/autopkgtest-reboot-prepare;'''
'''chmod 755 /tmp/autopkgtest-reboot-prepare;'''])
# record running kernel version
kver = self.check_exec(['uname', '-srv'], True).strip()
if not self.initial_kernel_version:
assert not self.last_test_name
self.initial_kernel_version = kver
adtlog.info('testbed running kernel: ' + self.initial_kernel_version)
else:
if kver != self.initial_kernel_version:
self.test_kernel_versions.append((self.last_test_name, self.last_reboot_marker, kver))
adtlog.info('testbed running kernel changed: %s (current test: %s%s)' %
(kver, self.last_test_name,
self.last_reboot_marker and (', last reboot marker: ' + self.last_reboot_marker) or ''))
# get CPU info
if self.nproc is None:
cpu_info = self.check_exec(['sh', '-c', 'nproc; cat /proc/cpuinfo 2>/dev/null || true'],
stdout=True).strip()
self.nproc = cpu_info.split('\n', 1)[0]
m = re.search('^(model.*name|cpu)\s*:\s*(.*)$', cpu_info, re.MULTILINE | re.IGNORECASE)
if m:
self.cpu_model = m.group(2)
m = re.search('^(flags|features)\s*:\s*(.*)$', cpu_info, re.MULTILINE | re.IGNORECASE)
if m:
self.cpu_flags = m.group(2)
xenv = ['AUTOPKGTEST_IS_SETUP_BOOT_COMMAND=1']
if self.user:
xenv.append('AUTOPKGTEST_NORMAL_USER=' + self.user)
xenv.append('ADT_NORMAL_USER=' + self.user)
for c in self.setup_commands_boot:
rc = self.execute(['sh', '-ec', c], xenv=xenv, kind='install')[0]
if rc:
# setup scripts should exit with 100 if it's the package's
# fault, otherwise it's considered a transient testbed failure
if rc == 100:
self.badpkg('testbed boot setup commands failed with status 100')
else:
self.bomb('testbed boot setup commands failed with status %i' % rc)
def _opened(self, pl):
self.scratch = pl[0]
self.deps_installed = []
self.apt_pin_for_pockets = []
self.recommends_installed = False
self.exec_cmd = list(map(urllib.parse.unquote, self.command('print-execute-command', (), 1)[0].split(',')))
self.caps = self.command('capabilities', (), None)
adtlog.debug('testbed capabilities: %s' % self.caps)
for c in self.caps:
if c.startswith('downtmp-host='):
self.shared_downtmp = c.split('=', 1)[1]
# provide a default for --user
if self.user is None and 'root-on-testbed' in self.caps:
self.user = ''
for c in self.caps:
if c.startswith('suggested-normal-user='):
self.user = c.split('=', 1)[1]
self.run_setup_commands()
# determine testbed architecture
self.system_arch = self.check_exec(self.system_interface.get_arch(), True).strip()
adtlog.info('testbed package architecture: ' + self.system_arch)
# do we have eatmydata?
(code, out, err) = self.execute(['which', 'eatmydata'], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
if code == 0:
adtlog.debug('testbed has eatmydata')
self.eatmydata_prefix = [out.strip()]
# record package versions of pristine testbed
if self.output_dir and self.system_interface.can_query_packages():
pkglist = TempPath(self, 'testbed-packages', autoclean=False)
self.check_exec(self.system_interface.get_installed_packages(pkglist))
pkglist.copyup()
self.post_boot_setup()
def close(self):
adtlog.debug('testbed close, scratch=%s' % self.scratch)
if self.scratch is None:
return
self.scratch = None
if self.sp is None:
return
self.command('close')
self.shared_downtmp = None
def reboot(self, prepare_only=False):
'''Reboot the testbed'''
self.command('reboot', prepare_only and ('prepare-only', ) or ())
self.post_boot_setup()
def run_setup_commands(self):
'''Run --setup-commmands and --copy'''
if not self.setup_commands and not self.add_apt_pockets and not self.copy_files:
return
adtlog.info('@@@@@@@@@@@@@@@@@@@@ test bed setup')
for (host, tb) in self.copy_files:
adtlog.debug('Copying file %s to testbed %s' % (host, tb))
Path(self, host, tb, os.path.isdir(host)).copydown()
# create apt sources for --apt-pocket
for pocket in self.add_apt_pockets:
pocket = pocket.split('=', 1)[0] # strip off package list
script = '''sed -rn 's/^(deb|deb-src) +(\[.*\] *)?([^ ]*(ubuntu.com|debian.org|ftpmaster|file:\/\/\/tmp\/testarchive)[^ ]*) +([^ -]+) +(.*)$/\\1 \\2\\3 \\5-%s \\6/p' /etc/apt/sources.list `ls /etc/apt/sources.list.d/*.list 2>/dev/null|| true` > /etc/apt/sources.list.d/%s.list; for retry in 1 2 3; do apt-get --no-list-cleanup -o Dir::Etc::sourcelist=/etc/apt/sources.list.d/%s.list -o Dir::Etc::sourceparts=/dev/null update 2>&1 && break || sleep 15; done''' % (pocket, pocket, pocket)
self.check_exec(['sh', '-ec', script])
# create apt pinning for --apt-pocket with package list
for pocket in self.add_apt_pockets:
# do we have a package list?
try:
(pocket, pkglist) = pocket.split('=', 1)
except ValueError:
continue
self._create_apt_pinning_for_packages(pocket, pkglist)
# record the mtimes of dirs affecting the boot
boot_dirs = '/boot /etc/init /etc/init.d /etc/systemd/system /lib/systemd/system'
self.check_exec(['bash', '-ec',
'for d in %s; do [ ! -d $d ] || touch -r $d %s/${d//\//_}.stamp; done' % (
boot_dirs, self.scratch)])
xenv = ['AUTOPKGTEST_IS_SETUP_COMMAND=1']
if self.user:
xenv.append('AUTOPKGTEST_NORMAL_USER=' + self.user)
xenv.append('ADT_NORMAL_USER=' + self.user)
for c in self.setup_commands:
rc = self.execute(['sh', '-ec', c], xenv=xenv, kind='install')[0]
if rc:
# setup scripts should exit with 100 if it's the package's
# fault, otherwise it's considered a transient testbed failure
if rc == 100:
self.badpkg('testbed setup commands failed with status 100')
else:
self.bomb('testbed setup commands failed with status %i' % rc)
# if the setup commands affected the boot, then reboot
if self.setup_commands and 'reboot' in self.caps:
boot_affected = self.execute(
['bash', '-ec', '[ ! -e /run/autopkgtest_no_reboot.stamp ] || exit 0;'
'for d in %s; do s=%s/${d//\//_}.stamp;'
' [ ! -d $d ] || [ `stat -c %%Y $d` = `stat -c %%Y $s` ]; done' % (
boot_dirs, self.scratch)])[0]
if boot_affected:
adtlog.info('rebooting testbed after setup commands that affected boot')
self.reboot()
def reset(self, deps_new, with_recommends):
'''Reset the testbed, if possible and necessary'''
adtlog.debug('testbed reset: modified=%s, deps_installed=%s(r: %s), deps_new=%s(r: %s)' %
(self.modified, self.deps_installed, self.recommends_installed,
deps_new, with_recommends))
if 'revert' in self.caps and (
self.modified or self.recommends_installed != with_recommends or
[d for d in self.deps_installed if d not in deps_new]):
adtlog.debug('testbed reset')
pl = self.command('revert', (), 1)
self._opened(pl)
self.modified = False
def install_deps(self, deps_new, recommends, shell_on_failure=False):
'''Install dependencies into testbed'''
adtlog.debug('install_deps: deps_new=%s, recommends=%s' % (deps_new, recommends))
self.deps_installed = deps_new
self.recommends_installed = recommends
if not deps_new:
return
self.satisfy_dependencies_string(', '.join(deps_new), 'install-deps', recommends, shell_on_failure=shell_on_failure)
def needs_reset(self):
# show what caused a reset
(fname, lineno, function, code) = traceback.extract_stack(limit=2)[0]
adtlog.debug('needs_reset, previously=%s, requested by %s() line %i' %
(self.modified, function, lineno))
self.modified = True
def bomb(self, m, _type=adtlog.TestbedFailure):
adtlog.debug('%s %s' % (_type.__name__, m))
self.stop()
raise _type(m)
def badpkg(self, m):
self.bomb(m, adtlog.BadPackageError)
def send(self, string):
try:
adtlog.debug('sending command to testbed: ' + string)
self.sp.stdin.write(string)
self.sp.stdin.write('\n')
self.sp.stdin.flush()
self.lastsend = string
except:
(type, value, dummy) = sys.exc_info()
self.bomb('cannot send to testbed: %s' % traceback.
format_exception_only(type, value))
def expect(self, keyword, nresults):
line = self.sp.stdout.readline()
if not line:
self.bomb('unexpected eof from the testbed')
if not line.endswith('\n'):
self.bomb('unterminated line from the testbed')
line = line.rstrip('\n')
adtlog.debug('got reply from testbed: ' + line)
ll = line.split()
if not ll:
self.bomb('unexpected whitespace-only line from the testbed')
if ll[0] != keyword:
if self.lastsend is None:
self.bomb("got banner `%s', expected `%s...'" %
(line, keyword))
else:
self.bomb("sent `%s', got `%s', expected `%s...'" %
(self.lastsend, line, keyword))
ll = ll[1:]
if nresults is not None and len(ll) != nresults:
self.bomb("sent `%s', got `%s' (%d result parameters),"
" expected %d result parameters" %
(self.lastsend, line, len(ll), nresults))
return ll
def command(self, cmd, args=(), nresults=0, unquote=True):
# pass args=[None,...] or =(None,...) to avoid more url quoting
if type(cmd) is str:
cmd = [cmd]
if len(args) and args[0] is None:
args = args[1:]
else:
args = list(map(urllib.parse.quote, args))
al = cmd + args
self.send(' '.join(al))
ll = self.expect('ok', nresults)
if unquote:
ll = list(map(urllib.parse.unquote, ll))
return ll
def execute(self, argv, xenv=[], stdout=None, stderr=None, kind='short'):
'''Run command in testbed.
The commands stdout/err will be piped directly to autopkgtest and its log
files, unless redirection happens with the stdout/stderr arguments
(passed to Popen).
Return (exit code, stdout, stderr). stdout/err will be None when output
is not redirected.
'''
env = list(xenv) # copy
if kind == 'install':
env.append('DEBIAN_FRONTEND=noninteractive')
env.append('APT_LISTBUGS_FRONTEND=none')
env.append('APT_LISTCHANGES_FRONTEND=none')
env += self.install_tmp_env
adtlog.debug('testbed command %s, kind %s, sout %s, serr %s, env %s' %
(argv, kind, stdout and 'pipe' or 'raw',
stderr and 'pipe' or 'raw', env))
if env:
argv = ['env'] + env + argv
VirtSubproc.timeout_start(timeouts[kind])
try:
proc = subprocess.Popen(self.exec_cmd + argv,
stdin=self.devnull,
stdout=stdout, stderr=stderr)
(out, err) = proc.communicate()
if out is not None:
out = out.decode()
if err is not None:
err = err.decode()
VirtSubproc.timeout_stop()
except VirtSubproc.Timeout:
# This is a bit of a hack, but what can we do.. we can't kill/clean
# up sudo processes, we can only hope that they clean up themselves
# after we stop the testbed
killtree(proc.pid)
adtlog.debug('timed out on %s %s (kind: %s)' % (self.exec_cmd, argv, kind))
if 'sudo' not in self.exec_cmd:
proc.wait()
msg = 'timed out on command "%s" (kind: %s)' % (' '.join(argv), kind)
if kind == 'test':
adtlog.error(msg)
raise
else:
self.bomb(msg)
adtlog.debug('testbed command exited with code %i' % proc.returncode)
if proc.returncode in (254, 255):
self.command('auxverb_debug_fail')
self.bomb('testbed auxverb failed with exit code %i' % proc.returncode)
return (proc.returncode, out, err)
def check_exec(self, argv, stdout=False, kind='short'):
'''Run argv in testbed.
If stdout is True, capture stdout and return it. Otherwise, don't
redirect and return None.
argv must succeed and not print any stderr.
'''
(code, out, err) = self.execute(argv,
stdout=(stdout and subprocess.PIPE or None),
stderr=subprocess.PIPE, kind=kind)
if err:
self.bomb('"%s" failed with stderr "%s"' % (' '.join(argv), err),
adtlog.AutopkgtestError)
if code != 0:
self.bomb('"%s" failed with status %i' % (' '.join(argv), code),
adtlog.AutopkgtestError)
return out
def install_apt(self, deps, recommends=False, shell_on_failure=False):
'''Install dependencies with apt-get into testbed
This requires root privileges and a writable file system.
'''
# create a dummy deb with the deps
pkgdir = tempfile.mkdtemp(prefix='autopkgtest-satdep.')
debdir = os.path.join(pkgdir, 'DEBIAN')
os.chmod(pkgdir, 0o755)
os.mkdir(debdir)
os.chmod(debdir, 0o755)
with open(os.path.join(debdir, 'control'), 'w') as f:
f.write('''Package: autopkgtest-satdep
Section: oldlibs
Priority: extra
Maintainer: autogenerated
Version: 0
Architecture: %s
Depends: %s
Description: satisfy autopkgtest test dependencies
''' % (self.dpkg_arch, deps))
deb = TempPath(self, 'autopkgtest-satdep.deb')
subprocess.check_call(['dpkg-deb', '-b', pkgdir, deb.host],
stdout=subprocess.PIPE)
shutil.rmtree(pkgdir)
deb.copydown()
# install it and its dependencies in the tb; our apt pinning is not
# very clever wrt. resolving transitional dependencies in the pocket,
# so we might need to retry without pinning
download_fail_retries = 3
while True:
self.check_exec(['dpkg', '--unpack', deb.tb], stdout=subprocess.PIPE)
# capture status-fd to stderr
(rc, _, serr) = self.execute(['/bin/sh', '-ec', '%s apt-get install '
'--assume-yes --fix-broken '
'-o APT::Status-Fd=3 '
'-o APT::Install-Recommends=%s '
'-o Dpkg::Options::=--force-confnew '
'-o Debug::pkgProblemResolver=true 3>&2 2>&1' %
(' '.join(self.eatmydata_prefix), recommends)],
kind='install', stderr=subprocess.PIPE)
if rc != 0:
adtlog.debug('apt-get install failed; status-fd:\n%s' % serr)
# check if apt failed during package download, which might be a
# transient error, so retry
if 'dlstatus:' in serr and 'pmstatus:' not in serr:
download_fail_retries -= 1
if download_fail_retries > 0:
adtlog.warning('apt failed to download packages, retrying in 10s...')
time.sleep(10)
continue
else:
self.bomb('apt repeatedly failed to download packages')
if shell_on_failure:
self.run_shell()
else:
# apt-get -f may succeed, but its solution might remove
# autopkgtest-satdep, which is still a failure
rc = self.execute(['dpkg', '--status', 'autopkgtest-satdep'],
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)[0]
if rc != 0:
if self.apt_pin_for_pockets:
pocket = self.apt_pin_for_pockets.pop()
adtlog.warning('Test dependencies are unsatisfiable with using apt pinning. '
'Retrying with using all packages from %s' % pocket)
self.check_exec(['/bin/sh', '-ec', 'rm /etc/apt/preferences.d/autopkgtest-*-' + pocket])
continue
if shell_on_failure:
self.run_shell()
self.badpkg('Test dependencies are unsatisfiable. A common reason is '
'that your testbed is out of date with respect to the '
'archive, and you need to use a current testbed or run '
'apt-get update or use -U.')
break
# remove autopkgtest-satdep to avoid confusing tests, but avoid marking our
# test dependencies for auto-removal
out = self.check_exec(['apt-get', '--simulate', '--quiet',
'-o', 'APT::Get::Show-User-Simulation-Note=False',
'--auto-remove',
'purge', 'autopkgtest-satdep'],
True)
test_deps = []
for line in out.splitlines():
if not line.startswith('Purg '):
continue
pkg = line.split()[1]
if pkg != 'autopkgtest-satdep':
test_deps.append(pkg)
if test_deps:
adtlog.debug('Marking test dependencies as manually installed: %s' %
' '.join(test_deps))
# avoid overly long command lines
batch = 0
while batch < len(test_deps):
self.check_exec(['apt-mark', 'manual', '-qq'] + test_deps[batch:batch + 20])
batch += 20
self.execute(['dpkg', '--purge', 'autopkgtest-satdep'])
def install_tmp(self, deps, recommends=False):
'''Unpack dependencies into temporary directory
This is a fallback if the testbed does not have root privileges or a
writable file system, and will only work for packages that can be
used from a different directory with PATH, LD_LIBRARY_PATH, PYTHONPATH
etc. set.
Sets/updates self.install_tmp_env to necessary variables.
'''
unsupported = []
pkg_constraints = {} # pkg -> (relation, version)
# parse deps into pkg_constraints
dep_re = re.compile(
r'(?P<p>[a-z0-9+-.]+)\s*'
r'(\((?P<r><<|<=|>=|=|>>)\s*(?P<v>[^\)]*)\))?$')
for dep in deps.split(','):
dep = dep.strip()
if not dep:
continue # trailing comma
m = dep_re.match(dep)
if not m:
unsupported.append(dep)
continue
pkg_constraints[m.group('p')] = (m.group('r'), m.group('v'))
adtlog.debug('install_tmp: "%s" -> %s, unsupported: %s' %
(deps, pkg_constraints, unsupported))
if unsupported:
adtlog.warning('The following dependencies cannot be handled in '
'reduced "unpack to temporary directory" mode: ' +
', '.join(unsupported))
# simulate installation, grab packages, and check constraints
(rc, out, _) = self.execute(['apt-get', '--quiet', '--simulate', '--no-remove',
'-o', 'Debug::pkgProblemResolver=true',
'-o', 'Debug::NoLocking=true',
'-o', 'APT::Install-Recommends=%s' % recommends,
'-o', 'APT::Get::Show-User-Simulation-Note=False',
'install'] + list(pkg_constraints),
stdout=subprocess.PIPE)
if rc != 0:
self.badpkg('Test dependencies are unsatisfiable. A common reason is '
'that your testbed is out of date with respect to the '
'archive, and you need to use a current testbed, or '
'try "--setup-commands ro-apt-update".')
def check_constraint(pkg, ver):
constraint = pkg_constraints.get(pkg, (None, None))
if constraint[0] is None:
return True
comp = debian_support.version_compare(ver, constraint[1])
if constraint[0] == '<<':
return comp < 0
if constraint[0] == '<=':
return comp <= 0
if constraint[0] == '==':
return comp == 0
if constraint[0] == '>=':
return comp >= 0
if constraint[0] == '>>':
return comp > 0
raise ValueError('invalid dependency version relation %s' % constraint[0])
to_install = []
for line in out.splitlines():
if not line.startswith('Inst '):
continue
fields = line.split()
pkg = fields[1]
if fields[2].startswith('('):
ver = fields[2][1:]
elif fields[3].startswith('('):
ver = fields[3][1:]
else:
raise ValueError('Cannot parse line: %s' % line)
# ignore Python 2 stuff, with PYTHONPATH we can only support one
# Python major version (3)
if pkg.startswith('python-') or pkg.startswith('libpython-') or \
'python2.' in pkg or pkg == 'python':
adtlog.warning('Ignoring Python 2.x dependency %s, not '
'supported in unpack only mode' % pkg)
continue
if not check_constraint(pkg, ver):
self.badpkg('test dependency %s (%s %s) is unsatisfiable: available version %s' %
(pkg, pkg_constraints[pkg][0], pkg_constraints[pkg][1], ver))
to_install.append(pkg)
adtlog.debug('install_tmp: packages to install: %s' % ' '.join(to_install))
if not to_install:
# we already have everything, all good
return
adtlog.warning('virtualisation system does not offer root or writable '
'testbed; unpacking dependencies to temporary dir, '
'which will only work for some packages')
# download and unpack all debs
script = '''d=%(t)s/deps
mkdir -p $d; cd $d
apt-get download %(pkgs)s >&2
for p in *.deb; do dpkg-deb --extract $p .; rm $p; done
# executables
echo PATH=$d/sbin:$d/bin:$d/usr/sbin:$d/usr/bin:$d/usr/games:$PATH
# shared libraries / Qt plugins
l=""
q=""
for candidate in $(find $d -type d \( -name 'lib' -o -path '*/lib/*-linux-*' \)); do
[ -z "$(ls $candidate/*.so $candidate/*.so.* 2>/dev/null)" ] || l="$candidate:$l"
[ -z "$(ls $candidate/lib*qt*.so* 2>/dev/null)" ] || q="$candidate:$q"
done
[ -z "$l" ] || echo LD_LIBRARY_PATH=$l${LD_LIBRARY_PATH:-}
[ -z "$q" ] || echo QT_PLUGIN_PATH="$q"
# ImageMagick needs some hacks to make python[3]-wand find its library
l=""
for ml in $(ls usr/lib/*-linux-*/libMagick*.so.* 2>/dev/null); do
if [ -L $ml ]; then continue; fi
l=$(dirname $ml)
ln -sf $(basename "$ml") "${ml%%.so.*}.so"
done
if [ -n "$l" ]; then
[ -d "$l/lib" ] || ln -sf . "$l/lib"
echo MAGICK_HOME="$d/$l"
fi
# Python modules
p=""
for candidate in $d/usr/lib/python3*/dist-packages; do
[ ! -d $candidate ] || p="$candidate:$p"
done
[ -z "$p" ] || echo PYTHONPATH=$p${PYTHONPATH:-}
# Perl modules
p=""
for candidate in $d/usr/share/perl* $d/usr/lib/perl5 $d/usr/lib/*/perl5/*; do
[ ! -d $candidate ] || p="$candidate:$p"
done
[ -z "$p" ] || echo PERL5LIB=$p${PERL5LIB:-}
# gobject-introspection
l=""
if [ -d $d/usr/lib/girepository-1.0 ]; then
l=$d/usr/lib/girepository-1.0
fi
for candidate in $(find $d -type d -path '*/usr/lib/*/girepository-*'); do
[ -z "$(ls $candidate/*.typelib 2>/dev/null)" ] || l="$candidate:$l"
done
[ -z "$l" ] || echo GI_TYPELIB_PATH="$l:${GI_TYPELIB_PATH:-}"
# udev rules
if [ -n "$(ls $d/lib/udev/rules.d/*.rules 2>/dev/null)" ] && [ -w /run/udev ]; then
mkdir -p /run/udev/rules.d
cp $d/lib/udev/rules.d/*.rules /run/udev/rules.d/
udevadm control --reload
udevadm trigger || true
fi
''' % {'t': self.scratch, 'pkgs': ' '.join(to_install)}
(rc, out, _) = self.execute(['sh', '-euc', script],
stdout=subprocess.PIPE, kind='install')
if rc != 0:
self.bomb('failed to download and unpack test dependencies')
self.install_tmp_env = [l.strip() for l in out.splitlines() if l]
adtlog.debug('install_tmp: env is now %s' % self.install_tmp_env)
def install_click(self, clickpath):
# copy click into testbed
tp = Path(self, clickpath, os.path.join(
self.scratch, os.path.basename(clickpath)))
tp.copydown()
# install it
clickopts = ['--all-users']
if 'AUTOPKGTEST_CLICK_NO_FRAMEWORK_CHECK' in os.environ:
# this is mostly for testing
clickopts.append('--force-missing-framework')
if 'root-on-testbed' in self.caps:
rc = self.execute(['click', 'install', '--allow-unauthenticated'] +
clickopts + [tp.tb], kind='install')[0]
else:
rc = self.execute(['pkcon', 'install-local', '--allow-untrusted',
tp.tb], kind='install')[0]
if rc != 0:
self.badpkg('click install failed with status %i' % rc)
# work around https://launchpad.net/bugs/1333215
# we don't want su -l here which resets the environment from
# self.execute(); so emulate the parts that we want
# FIXME: move "run as user" as an argument of execute()/check_exec() and run with -l
self.check_exec(['su', '--shell=/bin/sh', self.user, '-c',
('export USER=%s;' % self.user) +
'. /etc/profile >/dev/null 2>&1 || true; '
' . ~/.profile >/dev/null 2>&1 || true; '
'[ -z "$UPSTART_SESSION" ] || /sbin/initctl --user start click-user-hooks'])
def apparmor_click(self, clickpkgs, installed_clicks):
'''Update AppArmor rules for click tests
Return True if anything was modified and apparmor_restore_click()
needs to be called.
'''
# check if we are in a click+AppArmor environment
if self.execute(['sh', '-ec',
'[ -d /var/cache/apparmor -a -d /var/lib/apparmor/clicks -a ! -e /var/cache/apparmor/click-ap.rules ] && '
'type aa-clickhook >/dev/null 2>&1'])[0] != 0:
adtlog.debug('testbed does not have AppArmor/click or already has Autopilot click rules, no need to adjust rules')
return False
adtlog.debug('testbed has AppArmor/click')
if 'root-on-testbed' not in self.caps:
adtlog.warning('Cannot adjust AppArmor rules without root/sudo '
'privileges; Autopilot tests will fail and test '
'dependencies will not be available!')
return False
rules = 'dbus (receive, send) bus=session path=/com/canonical/Autopilot/**,'
for e in self.install_tmp_env:
if e.startswith('QT_PLUGIN_PATH='):
for p in e.split('=', 1)[1].split(':'):
p = p.strip()
if p:
rules += ' %s/** r,' % p
break
script = '''echo '%s' > /var/cache/apparmor/click-ap.rules; ''' % rules
if clickpkgs or installed_clicks:
adtlog.info('Updating AppArmor rules to allow autopilot introspection for tested clicks')
script += 'for c in %s; do ' \
' info=$(click info %s %s/$(basename "$c")); ' \
''' name=$(echo "$info" | sed -rn '/"name"/ {s/^.*: *"([^"]+)",/\\1/; p}'); ''' \
''' version=$(echo "$info" | sed -rn '/"version"/ {s/^.*: *"([^"]+)",/\\1/; p}'); ''' \
' touch -h /var/lib/apparmor/clicks/${name}_*_${version}.json >/dev/null || true; '\
'done; ' \
'for c in %s; do ' \
' touch -h /var/lib/apparmor/clicks/${c}_*.json 2>/dev/null || true; ' \
'done; ' \
'aa-clickhook --include=/var/cache/apparmor/click-ap.rules' % (
' '.join(clickpkgs),
self.user and ('--user ' + self.user) or '',
self.scratch,
' '.join(installed_clicks))
else:
adtlog.info('Updating AppArmor rules to allow autopilot introspection for all clicks (will take a minute)...')
script += 'aa-clickhook --force --include=/var/cache/apparmor/click-ap.rules'
if self.execute(['sh', adtlog.verbosity >= 2 and '-exc' or '-ec', script], kind='install')[0] != 0:
self.bomb('Failed to update click AppArmor rules')
return True
def apparmor_restore_click(self, clickpkgs, installed_clicks):
'''Restore AppArmor rules after click tests'''
adtlog.info('Restoring click package AppArmor rules')
# if we only modified some clicks above, --force will be fast, so it's
# ok to always do that
script = 'rm -f /var/cache/apparmor/click-ap.rules; aa-clickhook --force'
if self.execute(['sh', adtlog.verbosity >= 2 and '-exc' or '-ec', script], kind='install')[0] != 0:
self.bomb('Failed to update click AppArmor rules')
def satisfy_dependencies_string(self, deps, what, recommends=False,
build_dep=False, shell_on_failure=False):
'''Install dependencies from a string into the testbed'''
adtlog.debug('%s: satisfying %s' % (what, deps))
# ignore ":native" tags, apt cannot parse them and deps_parse() does
# not seem to have an option to get rid of them; we always test on the
# native platform
deps = deps.replace(':native', '')
# resolve arch specific dependencies; don't use universal_newlines
# here, it's broken for stdin on Python 3.2
if build_dep:
extra_args = ', reduce_profiles => $supports_profiles, build_dep => 1'
else:
extra_args = ''
perl = subprocess.Popen(['perl', '-'], stdin=subprocess.PIPE,
stdout=subprocess.PIPE)
code = '''use Dpkg::Deps;
$supports_profiles = ($Dpkg::Deps::VERSION gt '1.04' or 0);
$origdeps = '%s';
$origdeps =~ s/(^|,)[^<,]+<[^!,>]+>//g if (!$supports_profiles);
$dep = deps_parse($origdeps, reduce_arch => 1, host_arch => '%s' %s);
$out = $dep->output();
# fall back to ignoring build profiles
$out =~ s/ <![^ >]+>//g if (!$supports_profiles);
print $out, "\\n";
''' % (deps, self.dpkg_arch, extra_args)
deps = perl.communicate(code.encode('UTF-8'))[0].decode('UTF-8').strip()
if perl.returncode != 0:
self.bomb('failed to run perl for parsing dependencies')
adtlog.debug('%s: architecture resolved: %s' % (what, deps))
# check if we can use apt-get
can_apt_get = False
if 'root-on-testbed' in self.caps:
rc = self.execute(['test', '-w', '/var/lib/dpkg/status'])[0]
if rc == 0:
can_apt_get = True
adtlog.debug('can use apt-get on testbed: %s' % can_apt_get)
if can_apt_get:
self.install_apt(deps, recommends, shell_on_failure)
else:
self.install_tmp(deps, recommends)
def run_shell(self, cwd=None, extra_env=[]):
'''Run shell in testbed for debugging tests'''
adtlog.info(' - - - - - - - - - - running shell - - - - - - - - - -')
self.command('shell', [cwd or '/'] + self.install_tmp_env + extra_env)
def run_test(self, tree, test, extra_env=[], shell_on_failure=False,
shell=False, build_parallel=None):
'''Run given test in testbed
tree (a Path) is the source tree root.
'''
def _info(m):
adtlog.info('test %s: %s' % (test.name, m))
self.last_test_name = test.name
if test.path and not os.path.exists(os.path.join(tree.host, test.path)):
self.badpkg('%s does not exist' % test.path)
for c in test.clicks:
self.install_click(c)
need_click_restore = self.apparmor_click(test.clicks, test.installed_clicks)
# record installed package versions
if self.output_dir and self.execute(['which', 'dpkg-query'], stdout=subprocess.PIPE, stderr=subprocess.PIPE)[0] == 0:
pkglist = TempPath(self, test.name + '-packages.all', autoclean=False)
self.check_exec([
'sh', '-ec', "dpkg-query --show -f '${Package}\\t${Version}\\n' > %s" % pkglist.tb])
pkglist.copyup()
# filter out packages from the base system
with open(pkglist.host[:-4], 'w') as out:
join = subprocess.Popen(['join', '-v2', '-t\t',
os.path.join(self.output_dir, 'testbed-packages'), pkglist.host],
stdout=out, env={})
join.communicate()
if join.returncode != 0:
self.badpkg('failed to call join for test specific package list, code %d' % join.returncode)
os.unlink(pkglist.host)
# ensure our tests are in the testbed
tree.copydown(check_existing=True)
# stdout/err files in testbed
so = TempPath(self, test.name + '-stdout', autoclean=False)
se = TempPath(self, test.name + '-stderr', autoclean=False)
# create script to run test
test_artifacts = '%s/%s-artifacts' % (self.scratch, test.name)
autopkgtest_tmp = '%s/autopkgtest_tmp' % (self.scratch)
assert self.nproc is not None
script = 'set -e; ' \
'export USER=`id -nu`; ' \
'. /etc/profile >/dev/null 2>&1 || true; ' \
' . ~/.profile >/dev/null 2>&1 || true; ' \
'buildtree="%(t)s"; ' \
'mkdir -p -m 1777 -- "%(a)s"; ' \
'export AUTOPKGTEST_ARTIFACTS="%(a)s"; ' \
'export ADT_ARTIFACTS="$AUTOPKGTEST_ARTIFACTS"; ' \
'mkdir -p -m 755 "%(tmp)s"; export AUTOPKGTEST_TMP="%(tmp)s"; ' \
'export ADTTMP="$AUTOPKGTEST_TMP"; ' \
'export DEBIAN_FRONTEND=noninteractive; ' \
'export LANG=C.UTF-8; ' \
'''export DEB_BUILD_OPTIONS=parallel=%(cpu)s; ''' \
'unset LANGUAGE LC_CTYPE LC_NUMERIC LC_TIME LC_COLLATE '\
' LC_MONETARY LC_MESSAGES LC_PAPER LC_NAME LC_ADDRESS '\
' LC_TELEPHONE LC_MEASUREMENT LC_IDENTIFICATION LC_ALL;' \
'rm -f /tmp/autopkgtest_script_pid; set -C; echo $$ > /tmp/autopkgtest_script_pid; set +C; ' \
'trap "rm -f /tmp/autopkgtest_script_pid" EXIT INT QUIT PIPE; '\
'cd "$buildtree"; '\
% {'t': tree.tb, 'a': test_artifacts, 'tmp': autopkgtest_tmp,
'cpu': build_parallel or self.nproc}
if 'needs-root' in test.restrictions and self.user is not None:
script += 'export AUTOPKGTEST_NORMAL_USER=%s; ' % self.user
script += 'export ADT_NORMAL_USER=%s; ' % self.user
for e in extra_env:
script += 'export \'%s\'; ' % e
# there's no way to tell su to not reset $PATH, for install-tmp mode;
# we also need it to amend fixed values in /etc/environment
for e in self.install_tmp_env:
script += 'export %s; ' % e
# if we have an user upstart session, poke the environment into it
if self.install_tmp_env:
script += 'if [ -n "$UPSTART_SESSION" ]; then '
for e in self.install_tmp_env:
script += ' initctl --user set-env "%s"; ' % e
script += 'fi; '
if test.path:
test_cmd = os.path.join(tree.tb, test.path)
script += 'chmod +x %s; ' % test_cmd
else:
test_cmd = "bash -ec '%s'" % test.command
script += 'touch %(o)s %(e)s; ' \
'%(t)s 2> >(tee -a %(e)s >&2) > >(tee -a %(o)s);' \
% {'t': test_cmd, 'o': so.tb, 'e': se.tb}
if 'needs-root' not in test.restrictions and self.user is not None:
if 'root-on-testbed' not in self.caps:
self.bomb('cannot change to user %s without root-on-testbed' % self.user,
adtlog.AutopkgtestError)
# we don't want -l here which resets the environment from
# self.execute(); so emulate the parts that we want
# FIXME: move "run as user" as an argument of execute()/check_exec() and run with -l
test_argv = ['su', '-s', '/bin/bash', self.user, '-c']
if 'rw-build-tree' in test.restrictions:
self.check_exec(['chown', '-R', self.user, tree.tb])
else:
# this ensures that we have a PAM/logind session for root tests as
# well; with some interfaces like ttyS1 or lxc_attach we don't log
# in to the testbed
if 'root-on-testbed' in self.caps:
test_argv = ['su', '-s', '/bin/bash', 'root', '-c']
else:
test_argv = ['bash', '-c']
# run test script
if test.command:
_info(test.command)
_info('[-----------------------')
# tests may reboot, so we might need to run several times
self.last_reboot_marker = ''
timeout = False
while True:
if self.last_reboot_marker:
script_prefix = 'export AUTOPKGTEST_REBOOT_MARK="%s"; export ADT_REBOOT_MARK="$AUTOPKGTEST_REBOOT_MARK"; ' % self.last_reboot_marker
else:
script_prefix = ''
try:
rc = self.execute(test_argv + [script_prefix + script], kind='test')[0]
except VirtSubproc.Timeout:
rc = 1
timeout = True
break
# did the test invoke autopkgtest-reboot?
if os.WIFSIGNALED(rc) and os.WTERMSIG(rc) == signal.SIGKILL and 'reboot' in self.caps:
adtlog.debug('test process SIGKILLed, checking for reboot marker')
(code, reboot_marker, err) = self.execute(
['cat', '/run/autopkgtest-reboot-mark'],
stdout=subprocess.PIPE, stderr=subprocess.PIPE)
if code == 0:
self.last_reboot_marker = reboot_marker.strip()
adtlog.info('test process requested reboot with marker %s' % self.last_reboot_marker)
self.reboot()
continue
adtlog.debug('test process SIGKILLed, checking for prepare-reboot marker')
(code, reboot_marker, err) = self.execute(
['cat', '/run/autopkgtest-reboot-prepare-mark'],
stdout=subprocess.PIPE, stderr=subprocess.PIPE)
if code == 0:
self.last_reboot_marker = reboot_marker.strip()
adtlog.info('test process requested preparation for reboot with marker %s' % self.last_reboot_marker)
self.reboot(prepare_only=True)
continue
adtlog.debug('no reboot marker, considering a failure')
break
# give the setup_trace() cats some time to catch up
sys.stdout.flush()
sys.stderr.flush()
time.sleep(0.3)
_info('-----------------------]')
adtlog.debug('testbed executing test finished with exit status %i' % rc)
# copy stdout/err files to host
try:
so.copyup()
se.copyup()
se_size = os.path.getsize(se.host)
except adtlog.TestbedFailure:
if timeout:
# if the test timed out, it's likely that the test destroyed
# the testbed, so ignore this and call it a failure
adtlog.warning('Copying up test output timed out, ignoring')
se_size = 0
so.host = None
se.host = None
else:
# smells like a tmpfail
raise
# avoid mixing up stdout (from report) and stderr (from logging) in output
sys.stdout.flush()
sys.stderr.flush()
time.sleep(0.1)
_info(' - - - - - - - - - - results - - - - - - - - - -')
if timeout:
test.failed('timed out')
elif rc != 0:
test.failed('non-zero exit status %d' % rc)
elif se_size != 0 and 'allow-stderr' not in test.restrictions:
with open(se.host, encoding='UTF-8') as f:
stderr_top = f.readline().rstrip('\n \t\r')
test.failed('stderr: %s' % stderr_top)
else:
test.passed()
sys.stdout.flush()
sys.stderr.flush()
# skip the remaining processing if the testbed got broken
if se.host is None:
adtlog.debug('Skipping remaining log processing and testbed restore after timeout')
return
if os.path.getsize(so.host) == 0:
# don't produce empty -stdout files in --output-dir
so.autoclean = True
if se_size != 0 and 'allow-stderr' not in test.restrictions:
# give tee processes some time to catch up, to avoid mis-ordered logs
time.sleep(0.2)
_info(' - - - - - - - - - - stderr - - - - - - - - - -')
with open(se.host, 'rb') as f:
while True:
block = f.read1(1000000)
if not block:
break
sys.stderr.buffer.write(block)
sys.stderr.buffer.flush()
else:
# don't produce empty -stderr files in --output-dir
if se_size == 0:
se.autoclean = True
# copy artifacts to host, if we have --output-dir
if self.output_dir:
ap = Path(self, os.path.join(self.output_dir, 'artifacts'),
test_artifacts, is_dir=True)
ap.copyup()
# don't keep an empty artifacts dir around
if not os.listdir(ap.host):
os.rmdir(ap.host)
if shell or (shell_on_failure and not test.result):
self.run_shell(tree.tb, ['AUTOPKGTEST_ARTIFACTS="%s"' % test_artifacts,
'AUTOPKGTEST_TMP="%s"' % autopkgtest_tmp])
# clean up artifacts and AUTOPKGTEST_TMP dirs
self.check_exec(['rm', '-rf', test_artifacts, autopkgtest_tmp])
if need_click_restore:
self.apparmor_restore_click(test.clicks, test.installed_clicks)
else:
adtlog.debug('no need to restore click AppArmor profiles')
#
# helper methods
#
def _create_apt_pinning_for_packages(self, pocket, pkglist):
'''Create apt pinning for --apt-pocket=pocket=pkglist'''
# sort pkglist into source and binary packages
binpkgs = []
srcpkgs = []
for i in pkglist.split(','):
i = i.strip()
if i.startswith('src:'):
srcpkgs.append(i[4:])
else:
binpkgs.append(i)
# get release name
script = 'SRCS=$(ls /etc/apt/sources.list /etc/apt/sources.list.d/*.list 2>/dev/null|| true); '
script += '''REL=$(sed -rn '/^(deb|deb-src) .*(ubuntu.com|debian.org|ftpmaster|file:\/\/\/tmp\/testarchive)/ { s/^[^ ]+ +(\[.*\] *)?[^ ]* +([^ -]+) +.*$/\\2/p}' $SRCS | head -n1); '''
script += 'mkdir -p /etc/apt/preferences.d; '
script += 'PKGS="%s"; ' % ' '.join(binpkgs)
# translate src:name entries into binaries of that source
if srcpkgs:
script += 'PKGS="$PKGS $(apt-cache showsrc %s | ' \
'''awk '/^Package-List:/ { show=1; next } (/^ / && show==1) { print $1; next } { show=0 }' |''' \
'''sort -u | tr '\\n' ' ')"; ''' % \
' '.join(srcpkgs)
# prefer given packages from pocket, other packages from
# default $REL (prio 900), but make $REL-pocket available for
# dependency resolution (prio 800)
script += 'printf "Package: $PKGS\\nPin: release a=${REL}-%(pocket)s\\nPin-Priority: 990\\n\\nPackage: *\\nPin: release a=$REL\\nPin-Priority: 900\\n\\nPackage: *\\nPin: release a=${REL}-updates\\nPin-Priority: 900\\n\\nPackage: *\\nPin: release a=${REL}-%(pocket)s\\nPin-Priority: 800\\n" > /etc/apt/preferences.d/autopkgtest-${REL}-%(pocket)s; ' % \
{'pocket': pocket}
self.check_exec(['sh', '-ec', script])
self.apt_pin_for_pockets.append(pocket)
class Path:
'''Represent a file/dir with a host and a testbed path'''
def __init__(self, testbed, host, tb, is_dir=None):
'''Create a Path object.
The object itself is just a pair of file names, nothing more. They do
not need to exist until you call copyup() or copydown() on them.
testbed: the Testbed object which this refers to
host: path of the file on the host
tb: path of the file in testbed
is_dir: whether path is a directory; None for "unspecified" if you only
need copydown()
'''
self.testbed = testbed
self.host = host
self.tb = tb
self.is_dir = is_dir
def copydown(self, check_existing=False):
'''Copy file from the host to the testbed
If check_existing is True, don't copy if the testbed path already
exists.
'''
if check_existing and self.testbed.execute(['test', '-e', self.tb])[0] == 0:
adtlog.debug('copydown: tb path %s already exists' % self.tb)
return
# create directory on testbed
self.testbed.check_exec(['mkdir', '-p', os.path.dirname(self.tb)])
if os.path.isdir(self.host):
# directories need explicit '/' appended for VirtSubproc
self.testbed.command('copydown', (self.host + '/', self.tb + '/'))
else:
self.testbed.command('copydown', (self.host, self.tb))
# we usually want our files be readable for the non-root user
if self.testbed.user:
rc = self.testbed.execute(['chown', '-R', self.testbed.user, '--', self.tb],
stderr=subprocess.PIPE)[0]
if rc != 0:
# chowning doesn't work on all shared downtmps, try to chmod
# instead
self.testbed.check_exec(['chmod', '-R', 'go+rwX', '--', self.tb])
def copyup(self, check_existing=False):
'''Copy file from the testbed to the host
If check_existing is True, don't copy if the host path already
exists.
'''
if check_existing and os.path.exists(self.host):
adtlog.debug('copyup: host path %s already exists' % self.host)
return
os.makedirs(os.path.dirname(self.host), exist_ok=True, mode=0o2755)
assert self.is_dir is not None
if self.is_dir:
self.testbed.command('copyup', (self.tb + '/', self.host + '/'))
else:
self.testbed.command('copyup', (self.tb, self.host))
class TempPath(Path):
'''Represent a file in the hosts'/testbed's temporary directories
These are only guaranteed to exit within one testbed run.
'''
def __init__(self, testbed, name, is_dir=False, autoclean=True):
'''Create a temporary Path object.
The object itself is just a pair of file names, nothing more. They do
not need to exist until you call copyup() or copydown() on them.
testbed: the Testbed object which this refers to
name: name of the temporary file (without path); host and tb
will then be derived from that
is_dir: whether path is a directory; None for "unspecified" if you only
need copydown()
autoclean: If True (default), remove file when test finishes. Should
be set to False for files which you want to keep in the
--output-dir which are useful for reporting results, like test
stdout/err, log files, and binaries.
'''
# if the testbed supports a shared downtmp, use that to avoid
# unnecessary copying, unless we want to permanently keep the file
if testbed.shared_downtmp and (not testbed.output_dir or autoclean):
host = testbed.shared_downtmp
else:
host = testbed.output_dir
self.autoclean = autoclean
Path.__init__(self, testbed, os.path.join(host, name),
os.path.join(testbed.scratch, name),
is_dir)
def __del__(self):
if self.autoclean:
if os.path.exists(self.host):
try:
os.unlink(self.host)
except OSError as e:
if e.errno == errno.EPERM:
self.testbed.check_exec(['rm', '-rf', self.tb])
else:
raise
#
# Helper functions
#
def child_ps(pid):
'''Get all child processes of pid'''
try:
out = subprocess.check_output(['ps', '-o', 'pid=', '--ppid', str(pid)])
return [int(p) for p in out.split()]
except subprocess.CalledProcessError:
return []
def killtree(pid):
'''Recursively kill pid and all of its children'''
for child in child_ps(pid):
killtree(child)
try:
os.kill(pid, signal.SIGTERM)
except OSError:
pass
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