import os, shutil, re, glob, subprocess, logging
from autotest_lib.client.common_lib import log
from autotest_lib.client.cros import constants
from autotest_lib.client.bin import utils, package
_DEFAULT_COMMANDS_TO_LOG_PER_TEST = []
_DEFAULT_COMMANDS_TO_LOG_PER_BOOT = [
"lspci -vvn", "gcc --version", "ld --version", "mount", "hostname",
"uptime",
]
_DEFAULT_COMMANDS_TO_LOG_BEFORE_ITERATION = []
_DEFAULT_COMMANDS_TO_LOG_AFTER_ITERATION = []
_DEFAULT_FILES_TO_LOG_PER_TEST = []
_DEFAULT_FILES_TO_LOG_PER_BOOT = [
"/proc/pci", "/proc/meminfo", "/proc/slabinfo", "/proc/version",
"/proc/cpuinfo", "/proc/modules", "/proc/interrupts", "/proc/partitions",
'/var/log/messages', constants.LOG_CONSOLE_RAMOOPS,
'/var/log/bios_info.txt', '/var/log/storage_info.txt',
]
_DEFAULT_FILES_TO_LOG_BEFORE_ITERATION = [
"/proc/schedstat", "/proc/meminfo", "/proc/slabinfo", "/proc/interrupts"
]
_DEFAULT_FILES_TO_LOG_AFTER_ITERATION = [
"/proc/schedstat", "/proc/meminfo", "/proc/slabinfo", "/proc/interrupts"
]
class loggable(object):
""" Abstract class for representing all things "loggable" by sysinfo. """
def __init__(self, logf, log_in_keyval):
self.logf = logf
self.log_in_keyval = log_in_keyval
def readline(self, logdir):
"""Reads one line from the log.
@param logdir: The log directory.
@return A line from the log, or the empty string if the log doesn't
exist.
"""
path = os.path.join(logdir, self.logf)
if os.path.exists(path):
return utils.read_one_line(path)
else:
return ""
class logfile(loggable):
"""Represents a log file."""
def __init__(self, path, logf=None, log_in_keyval=False):
if not logf:
logf = os.path.basename(path)
super(logfile, self).__init__(logf, log_in_keyval)
self.path = path
def __repr__(self):
r = "sysinfo.logfile(%r, %r, %r)"
r %= (self.path, self.logf, self.log_in_keyval)
return r
def __eq__(self, other):
if isinstance(other, logfile):
return (self.path, self.logf) == (other.path, other.logf)
elif isinstance(other, loggable):
return False
return NotImplemented
def __ne__(self, other):
result = self.__eq__(other)
if result is NotImplemented:
return result
return not result
def __hash__(self):
return hash((self.path, self.logf))
def run(self, logdir):
"""Copies the log file to the specified directory.
@param logdir: The log directory.
"""
if os.path.exists(self.path):
shutil.copyfile(self.path, os.path.join(logdir, self.logf))
class command(loggable):
"""Represents a command."""
def __init__(self, cmd, logf=None, log_in_keyval=False, compress_log=False):
if not logf:
logf = cmd.replace(" ", "_")
super(command, self).__init__(logf, log_in_keyval)
self.cmd = cmd
self._compress_log = compress_log
def __repr__(self):
r = "sysinfo.command(%r, %r, %r)"
r %= (self.cmd, self.logf, self.log_in_keyval)
return r
def __eq__(self, other):
if isinstance(other, command):
return (self.cmd, self.logf) == (other.cmd, other.logf)
elif isinstance(other, loggable):
return False
return NotImplemented
def __ne__(self, other):
result = self.__eq__(other)
if result is NotImplemented:
return result
return not result
def __hash__(self):
return hash((self.cmd, self.logf))
def run(self, logdir):
"""Runs the command.
@param logdir: The log directory.
"""
env = os.environ.copy()
if "PATH" not in env:
env["PATH"] = "/usr/bin:/bin"
logf_path = os.path.join(logdir, self.logf)
stdin = open(os.devnull, "r")
stderr = open(os.devnull, "w")
stdout = open(logf_path, "w")
try:
subprocess.call(self.cmd, stdin=stdin, stdout=stdout, stderr=stderr,
shell=True, env=env)
finally:
for f in (stdin, stdout, stderr):
f.close()
if self._compress_log and os.path.exists(logf_path):
utils.system('gzip -9 "%s"' % logf_path, ignore_status=True)
class base_sysinfo(object):
"""Represents system info."""
def __init__(self, job_resultsdir):
self.sysinfodir = self._get_sysinfodir(job_resultsdir)
# pull in the post-test logs to collect
self.test_loggables = set()
for cmd in _DEFAULT_COMMANDS_TO_LOG_PER_TEST:
self.test_loggables.add(command(cmd))
for filename in _DEFAULT_FILES_TO_LOG_PER_TEST:
self.test_loggables.add(logfile(filename))
# pull in the EXTRA post-boot logs to collect
self.boot_loggables = set()
for cmd in _DEFAULT_COMMANDS_TO_LOG_PER_BOOT:
self.boot_loggables.add(command(cmd))
for filename in _DEFAULT_FILES_TO_LOG_PER_BOOT:
self.boot_loggables.add(logfile(filename))
# pull in the pre test iteration logs to collect
self.before_iteration_loggables = set()
for cmd in _DEFAULT_COMMANDS_TO_LOG_BEFORE_ITERATION:
self.before_iteration_loggables.add(
command(cmd, logf=cmd.replace(" ", "_") + '.before'))
for fname in _DEFAULT_FILES_TO_LOG_BEFORE_ITERATION:
self.before_iteration_loggables.add(
logfile(fname, logf=os.path.basename(fname) + '.before'))
# pull in the post test iteration logs to collect
self.after_iteration_loggables = set()
for cmd in _DEFAULT_COMMANDS_TO_LOG_AFTER_ITERATION:
self.after_iteration_loggables.add(
command(cmd, logf=cmd.replace(" ", "_") + '.after'))
for fname in _DEFAULT_FILES_TO_LOG_AFTER_ITERATION:
self.after_iteration_loggables.add(
logfile(fname, logf=os.path.basename(fname) + '.after'))
# add in a couple of extra files and commands we want to grab
self.test_loggables.add(command("df -mP", logf="df"))
# We compress the dmesg because it can get large when kernels are
# configured with a large buffer and some tests trigger OOMs or
# other large "spam" that fill it up...
self.test_loggables.add(command("dmesg -c", logf="dmesg",
compress_log=True))
self.test_loggables.add(command("journalctl -o export", logf="journal",
compress_log=True))
self.boot_loggables.add(logfile("/proc/cmdline",
log_in_keyval=True))
# log /proc/mounts but with custom filename since we already
# log the output of the "mount" command as the filename "mount"
self.boot_loggables.add(logfile('/proc/mounts', logf='proc_mounts'))
self.boot_loggables.add(command("uname -a", logf="uname",
log_in_keyval=True))
self._installed_packages = []
def serialize(self):
"""Returns parameters in a dictionary."""
return {"boot": self.boot_loggables, "test": self.test_loggables}
def deserialize(self, serialized):
"""Stores parameters from a dictionary into instance variables.
@param serialized: A dictionary containing parameters to store as
instance variables.
"""
self.boot_loggables = serialized["boot"]
self.test_loggables = serialized["test"]
@staticmethod
def _get_sysinfodir(resultsdir):
sysinfodir = os.path.join(resultsdir, "sysinfo")
if not os.path.exists(sysinfodir):
os.makedirs(sysinfodir)
return sysinfodir
def _get_reboot_count(self):
if not glob.glob(os.path.join(self.sysinfodir, "*")):
return -1
else:
return len(glob.glob(os.path.join(self.sysinfodir, "boot.*")))
def _get_boot_subdir(self, next=False):
reboot_count = self._get_reboot_count()
if next:
reboot_count += 1
if reboot_count < 1:
return self.sysinfodir
else:
boot_dir = "boot.%d" % (reboot_count - 1)
return os.path.join(self.sysinfodir, boot_dir)
def _get_iteration_subdir(self, test, iteration):
iter_dir = "iteration.%d" % iteration
logdir = os.path.join(self._get_sysinfodir(test.outputdir), iter_dir)
if not os.path.exists(logdir):
os.mkdir(logdir)
return logdir
@log.log_and_ignore_errors("post-reboot sysinfo error:")
def log_per_reboot_data(self):
"""Logging hook called when a job starts, and again after any reboot."""
logdir = self._get_boot_subdir(next=True)
if not os.path.exists(logdir):
os.mkdir(logdir)
for log in (self.test_loggables | self.boot_loggables):
log.run(logdir)
# also log any installed packages
installed_path = os.path.join(logdir, "installed_packages")
installed_packages = "\n".join(package.list_all()) + "\n"
utils.open_write_close(installed_path, installed_packages)
@log.log_and_ignore_errors("pre-test sysinfo error:")
def log_before_each_test(self, test):
"""Logging hook called before a test starts.
@param test: A test object.
"""
self._installed_packages = package.list_all()
if os.path.exists("/var/log/messages"):
stat = os.stat("/var/log/messages")
self._messages_size = stat.st_size
self._messages_inode = stat.st_ino
if os.path.exists("/var/log/journal"):
# Find the current journal cursor so we later can save new messages.
cmd = "/usr/bin/journalctl -n0 --show-cursor -q"
try:
cursor = utils.system_output(cmd)
prefix = "-- cursor: "
pos = cursor.find(prefix) + len(prefix)
self._journal_cursor = cursor[pos:]
except Exception, e:
logging.error("error running journalctl --show-cursor: %s", e)
@log.log_and_ignore_errors("post-test sysinfo error:")
def log_after_each_test(self, test):
"""Logging hook called after a test finishs.
@param test: A test object.
"""
test_sysinfodir = self._get_sysinfodir(test.outputdir)
# create a symlink in the test sysinfo dir to the current boot
reboot_dir = self._get_boot_subdir()
assert os.path.exists(reboot_dir)
symlink_dest = os.path.join(test_sysinfodir, "reboot_current")
symlink_src = utils.get_relative_path(reboot_dir,
os.path.dirname(symlink_dest))
try:
os.symlink(symlink_src, symlink_dest)
except Exception, e:
raise Exception, '%s: whilst linking %s to %s' % (e, symlink_src,
symlink_dest)
# run all the standard logging commands
for log in self.test_loggables:
log.run(test_sysinfodir)
# grab any new data from /var/log/messages
self._log_messages(test_sysinfodir)
# grab any new data from systemd journal
self._log_journal(test_sysinfodir)
# log some sysinfo data into the test keyval file
keyval = self.log_test_keyvals(test_sysinfodir)
test.write_test_keyval(keyval)
# log any changes to installed packages
old_packages = set(self._installed_packages)
new_packages = set(package.list_all())
added_path = os.path.join(test_sysinfodir, "added_packages")
added_packages = "\n".join(new_packages - old_packages) + "\n"
utils.open_write_close(added_path, added_packages)
removed_path = os.path.join(test_sysinfodir, "removed_packages")
removed_packages = "\n".join(old_packages - new_packages) + "\n"
utils.open_write_close(removed_path, removed_packages)
@log.log_and_ignore_errors("pre-test siteration sysinfo error:")
def log_before_each_iteration(self, test, iteration=None):
"""Logging hook called before a test iteration.
@param test: A test object.
@param iteration: A test iteration.
"""
if not iteration:
iteration = test.iteration
logdir = self._get_iteration_subdir(test, iteration)
for log in self.before_iteration_loggables:
log.run(logdir)
@log.log_and_ignore_errors("post-test siteration sysinfo error:")
def log_after_each_iteration(self, test, iteration=None):
"""Logging hook called after a test iteration.
@param test: A test object.
@param iteration: A test iteration.
"""
if not iteration:
iteration = test.iteration
logdir = self._get_iteration_subdir(test, iteration)
for log in self.after_iteration_loggables:
log.run(logdir)
def _log_messages(self, logdir):
"""Log all of the new data in /var/log/messages."""
try:
# log all of the new data in /var/log/messages
bytes_to_skip = 0
if hasattr(self, "_messages_size"):
current_inode = os.stat("/var/log/messages").st_ino
if current_inode == self._messages_inode:
bytes_to_skip = self._messages_size
in_messages = open("/var/log/messages")
in_messages.seek(bytes_to_skip)
out_messages = open(os.path.join(logdir, "messages"), "w")
out_messages.write(in_messages.read())
in_messages.close()
out_messages.close()
except Exception, e:
logging.error("/var/log/messages collection failed with %s", e)
def _log_journal(self, logdir):
"""Log all of the new data in systemd journal."""
if not hasattr(self, "_journal_cursor"):
return
cmd = "/usr/bin/journalctl --after-cursor \"%s\"" % (self._journal_cursor)
try:
with open(os.path.join(logdir, "journal"), "w") as journal:
journal.write(utils.system_output(cmd))
except Exception, e:
logging.error("journal collection failed with %s", e)
@staticmethod
def _read_sysinfo_keyvals(loggables, logdir):
keyval = {}
for log in loggables:
if log.log_in_keyval:
keyval["sysinfo-" + log.logf] = log.readline(logdir)
return keyval
def log_test_keyvals(self, test_sysinfodir):
"""Logging hook called by log_after_each_test.
Collects keyval entries to be written in the test keyval.
@param test_sysinfodir: The test's system info directory.
"""
keyval = {}
# grab any loggables that should be in the keyval
keyval.update(self._read_sysinfo_keyvals(
self.test_loggables, test_sysinfodir))
keyval.update(self._read_sysinfo_keyvals(
self.boot_loggables,
os.path.join(test_sysinfodir, "reboot_current")))
# remove hostname from uname info
# Linux lpt36 2.6.18-smp-230.1 #1 [4069269] SMP Fri Oct 24 11:30:...
if "sysinfo-uname" in keyval:
kernel_vers = " ".join(keyval["sysinfo-uname"].split()[2:])
keyval["sysinfo-uname"] = kernel_vers
# grab the total avail memory, not used by sys tables
path = os.path.join(test_sysinfodir, "reboot_current", "meminfo")
if os.path.exists(path):
mem_data = open(path).read()
match = re.search(r"^MemTotal:\s+(\d+) kB$", mem_data,
re.MULTILINE)
if match:
keyval["sysinfo-memtotal-in-kb"] = match.group(1)
# guess the system's total physical memory, including sys tables
keyval["sysinfo-phys-mbytes"] = utils.rounded_memtotal()//1024
# return what we collected
return keyval