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#!/usr/bin/env python2
"""Module of binary serch for perforce."""
from __future__ import print_function
import math
import argparse
import os
import re
import sys
import tempfile
from cros_utils import command_executer
from cros_utils import logger
verbose = True
def _GetP4ClientSpec(client_name, p4_paths):
p4_string = ''
for p4_path in p4_paths:
if ' ' not in p4_path:
p4_string += ' -a %s' % p4_path
else:
p4_string += " -a \"" + (' //' + client_name + '/').join(p4_path) + "\""
return p4_string
def GetP4Command(client_name, p4_port, p4_paths, checkoutdir, p4_snapshot=''):
command = ''
if p4_snapshot:
command += 'mkdir -p ' + checkoutdir
for p4_path in p4_paths:
real_path = p4_path[1]
if real_path.endswith('...'):
real_path = real_path.replace('/...', '')
command += (
'; mkdir -p ' + checkoutdir + '/' + os.path.dirname(real_path))
command += ('&& rsync -lr ' + p4_snapshot + '/' + real_path + ' ' +
checkoutdir + '/' + os.path.dirname(real_path))
return command
command += ' export P4CONFIG=.p4config'
command += ' && mkdir -p ' + checkoutdir
command += ' && cd ' + checkoutdir
command += ' && cp ${HOME}/.p4config .'
command += ' && chmod u+w .p4config'
command += " && echo \"P4PORT=" + p4_port + "\" >> .p4config"
command += " && echo \"P4CLIENT=" + client_name + "\" >> .p4config"
command += (' && g4 client ' + _GetP4ClientSpec(client_name, p4_paths))
command += ' && g4 sync '
command += ' && cd -'
return command
class BinarySearchPoint(object):
"""Class of binary search point."""
def __init__(self, revision, status, tag=None):
self.revision = revision
self.status = status
self.tag = tag
class BinarySearcher(object):
"""Class of binary searcher."""
def __init__(self, logger_to_set=None):
self.sorted_list = []
self.index_log = []
self.status_log = []
self.skipped_indices = []
self.current = 0
self.points = {}
self.lo = 0
self.hi = 0
if logger_to_set is not None:
self.logger = logger_to_set
else:
self.logger = logger.GetLogger()
def SetSortedList(self, sorted_list):
assert len(sorted_list) > 0
self.sorted_list = sorted_list
self.index_log = []
self.hi = len(sorted_list) - 1
self.lo = 0
self.points = {}
for i in range(len(self.sorted_list)):
bsp = BinarySearchPoint(self.sorted_list[i], -1, 'Not yet done.')
self.points[i] = bsp
def SetStatus(self, status, tag=None):
message = ('Revision: %s index: %d returned: %d' %
(self.sorted_list[self.current], self.current, status))
self.logger.LogOutput(message, print_to_console=verbose)
assert status == 0 or status == 1 or status == 125
self.index_log.append(self.current)
self.status_log.append(status)
bsp = BinarySearchPoint(self.sorted_list[self.current], status, tag)
self.points[self.current] = bsp
if status == 125:
self.skipped_indices.append(self.current)
if status == 0 or status == 1:
if status == 0:
self.lo = self.current + 1
elif status == 1:
self.hi = self.current
self.logger.LogOutput('lo: %d hi: %d\n' % (self.lo, self.hi))
self.current = (self.lo + self.hi) / 2
if self.lo == self.hi:
message = ('Search complete. First bad version: %s'
' at index: %d' % (self.sorted_list[self.current], self.lo))
self.logger.LogOutput(message)
return True
for index in range(self.lo, self.hi):
if index not in self.skipped_indices:
return False
self.logger.LogOutput(
'All skipped indices between: %d and %d\n' % (self.lo, self.hi),
print_to_console=verbose)
return True
# Does a better job with chromeos flakiness.
def GetNextFlakyBinary(self):
t = (self.lo, self.current, self.hi)
q = [t]
while len(q):
element = q.pop(0)
if element[1] in self.skipped_indices:
# Go top
to_add = (element[0], (element[0] + element[1]) / 2, element[1])
q.append(to_add)
# Go bottom
to_add = (element[1], (element[1] + element[2]) / 2, element[2])
q.append(to_add)
else:
self.current = element[1]
return
assert len(q), 'Queue should never be 0-size!'
def GetNextFlakyLinear(self):
current_hi = self.current
current_lo = self.current
while True:
if current_hi < self.hi and current_hi not in self.skipped_indices:
self.current = current_hi
break
if current_lo >= self.lo and current_lo not in self.skipped_indices:
self.current = current_lo
break
if current_lo < self.lo and current_hi >= self.hi:
break
current_hi += 1
current_lo -= 1
def GetNext(self):
self.current = (self.hi + self.lo) / 2
# Try going forward if current is skipped.
if self.current in self.skipped_indices:
self.GetNextFlakyBinary()
# TODO: Add an estimated time remaining as well.
message = ('Estimated tries: min: %d max: %d\n' %
(1 + math.log(self.hi - self.lo, 2),
self.hi - self.lo - len(self.skipped_indices)))
self.logger.LogOutput(message, print_to_console=verbose)
message = ('lo: %d hi: %d current: %d version: %s\n' %
(self.lo, self.hi, self.current, self.sorted_list[self.current]))
self.logger.LogOutput(message, print_to_console=verbose)
self.logger.LogOutput(str(self), print_to_console=verbose)
return self.sorted_list[self.current]
def SetLoRevision(self, lo_revision):
self.lo = self.sorted_list.index(lo_revision)
def SetHiRevision(self, hi_revision):
self.hi = self.sorted_list.index(hi_revision)
def GetAllPoints(self):
to_return = ''
for i in range(len(self.sorted_list)):
to_return += ('%d %d %s\n' % (self.points[i].status, i,
self.points[i].revision))
return to_return
def __str__(self):
to_return = ''
to_return += 'Current: %d\n' % self.current
to_return += str(self.index_log) + '\n'
revision_log = []
for index in self.index_log:
revision_log.append(self.sorted_list[index])
to_return += str(revision_log) + '\n'
to_return += str(self.status_log) + '\n'
to_return += 'Skipped indices:\n'
to_return += str(self.skipped_indices) + '\n'
to_return += self.GetAllPoints()
return to_return
class RevisionInfo(object):
"""Class of reversion info."""
def __init__(self, date, client, description):
self.date = date
self.client = client
self.description = description
self.status = -1
class VCSBinarySearcher(object):
"""Class of VCS binary searcher."""
def __init__(self):
self.bs = BinarySearcher()
self.rim = {}
self.current_ce = None
self.checkout_dir = None
self.current_revision = None
def Initialize(self):
pass
def GetNextRevision(self):
pass
def CheckoutRevision(self, revision):
pass
def SetStatus(self, status):
pass
def Cleanup(self):
pass
def SetGoodRevision(self, revision):
if revision is None:
return
assert revision in self.bs.sorted_list
self.bs.SetLoRevision(revision)
def SetBadRevision(self, revision):
if revision is None:
return
assert revision in self.bs.sorted_list
self.bs.SetHiRevision(revision)
class P4BinarySearcher(VCSBinarySearcher):
"""Class of P4 binary searcher."""
def __init__(self, p4_port, p4_paths, test_command):
VCSBinarySearcher.__init__(self)
self.p4_port = p4_port
self.p4_paths = p4_paths
self.test_command = test_command
self.checkout_dir = tempfile.mkdtemp()
self.ce = command_executer.GetCommandExecuter()
self.client_name = 'binary-searcher-$HOSTNAME-$USER'
self.job_log_root = '/home/asharif/www/coreboot_triage/'
self.changes = None
def Initialize(self):
self.Cleanup()
command = GetP4Command(self.client_name, self.p4_port, self.p4_paths, 1,
self.checkout_dir)
self.ce.RunCommand(command)
command = 'cd %s && g4 changes ...' % self.checkout_dir
_, out, _ = self.ce.RunCommandWOutput(command)
self.changes = re.findall(r'Change (\d+)', out)
change_infos = re.findall(r'Change (\d+) on ([\d/]+) by '
r"([^\s]+) ('[^']*')", out)
for change_info in change_infos:
ri = RevisionInfo(change_info[1], change_info[2], change_info[3])
self.rim[change_info[0]] = ri
# g4 gives changes in reverse chronological order.
self.changes.reverse()
self.bs.SetSortedList(self.changes)
def SetStatus(self, status):
self.rim[self.current_revision].status = status
return self.bs.SetStatus(status)
def GetNextRevision(self):
next_revision = self.bs.GetNext()
self.current_revision = next_revision
return next_revision
def CleanupCLs(self):
if not os.path.isfile(self.checkout_dir + '/.p4config'):
command = 'cd %s' % self.checkout_dir
command += ' && cp ${HOME}/.p4config .'
command += " && echo \"P4PORT=" + self.p4_port + "\" >> .p4config"
command += " && echo \"P4CLIENT=" + self.client_name + "\" >> .p4config"
self.ce.RunCommand(command)
command = 'cd %s' % self.checkout_dir
command += '; g4 changes -c %s' % self.client_name
_, out, _ = self.ce.RunCommandWOUTPUOT(command)
changes = re.findall(r'Change (\d+)', out)
if len(changes) != 0:
command = 'cd %s' % self.checkout_dir
for change in changes:
command += '; g4 revert -c %s' % change
self.ce.RunCommand(command)
def CleanupClient(self):
command = 'cd %s' % self.checkout_dir
command += '; g4 revert ...'
command += '; g4 client -d %s' % self.client_name
self.ce.RunCommand(command)
def Cleanup(self):
self.CleanupCLs()
self.CleanupClient()
def __str__(self):
to_return = ''
for change in self.changes:
ri = self.rim[change]
if ri.status == -1:
to_return = '%s\t%d\n' % (change, ri.status)
else:
to_return += ('%s\t%d\t%s\t%s\t%s\t%s\t%s\t%s\n' %
(change, ri.status, ri.date, ri.client, ri.description,
self.job_log_root + change + '.cmd',
self.job_log_root + change + '.out',
self.job_log_root + change + '.err'))
return to_return
class P4GCCBinarySearcher(P4BinarySearcher):
"""Class of P4 gcc binary searcher."""
# TODO: eventually get these patches from g4 instead of creating them manually
def HandleBrokenCLs(self, current_revision):
cr = int(current_revision)
problematic_ranges = []
problematic_ranges.append([44528, 44539])
problematic_ranges.append([44528, 44760])
problematic_ranges.append([44335, 44882])
command = 'pwd'
for pr in problematic_ranges:
if cr in range(pr[0], pr[1]):
patch_file = '/home/asharif/triage_tool/%d-%d.patch' % (pr[0], pr[1])
f = open(patch_file)
patch = f.read()
f.close()
files = re.findall('--- (//.*)', patch)
command += '; cd %s' % self.checkout_dir
for f in files:
command += '; g4 open %s' % f
command += '; patch -p2 < %s' % patch_file
self.current_ce.RunCommand(command)
def CheckoutRevision(self, current_revision):
job_logger = logger.Logger(
self.job_log_root, current_revision, True, subdir='')
self.current_ce = command_executer.GetCommandExecuter(job_logger)
self.CleanupCLs()
# Change the revision of only the gcc part of the toolchain.
command = ('cd %s/gcctools/google_vendor_src_branch/gcc '
'&& g4 revert ...; g4 sync @%s' % (self.checkout_dir,
current_revision))
self.current_ce.RunCommand(command)
self.HandleBrokenCLs(current_revision)
def Main(argv):
"""The main function."""
# Common initializations
### command_executer.InitCommandExecuter(True)
ce = command_executer.GetCommandExecuter()
parser = argparse.ArgumentParser()
parser.add_argument(
'-n',
'--num_tries',
dest='num_tries',
default='100',
help='Number of tries.')
parser.add_argument(
'-g',
'--good_revision',
dest='good_revision',
help='Last known good revision.')
parser.add_argument(
'-b',
'--bad_revision',
dest='bad_revision',
help='Last known bad revision.')
parser.add_argument(
'-s', '--script', dest='script', help='Script to run for every version.')
options = parser.parse_args(argv)
# First get all revisions
p4_paths = [
'//depot2/gcctools/google_vendor_src_branch/gcc/gcc-4.4.3/...',
'//depot2/gcctools/google_vendor_src_branch/binutils/'
'binutils-2.20.1-mobile/...',
'//depot2/gcctools/google_vendor_src_branch/'
'binutils/binutils-20100303/...'
]
p4gccbs = P4GCCBinarySearcher('perforce2:2666', p4_paths, '')
# Main loop:
terminated = False
num_tries = int(options.num_tries)
script = os.path.expanduser(options.script)
try:
p4gccbs.Initialize()
p4gccbs.SetGoodRevision(options.good_revision)
p4gccbs.SetBadRevision(options.bad_revision)
while not terminated and num_tries > 0:
current_revision = p4gccbs.GetNextRevision()
# Now run command to get the status
ce = command_executer.GetCommandExecuter()
command = '%s %s' % (script, p4gccbs.checkout_dir)
status = ce.RunCommand(command)
message = ('Revision: %s produced: %d status\n' % (current_revision,
status))
logger.GetLogger().LogOutput(message, print_to_console=verbose)
terminated = p4gccbs.SetStatus(status)
num_tries -= 1
logger.GetLogger().LogOutput(str(p4gccbs), print_to_console=verbose)
if not terminated:
logger.GetLogger().LogOutput(
'Tries: %d expired.' % num_tries, print_to_console=verbose)
logger.GetLogger().LogOutput(str(p4gccbs.bs), print_to_console=verbose)
except (KeyboardInterrupt, SystemExit):
logger.GetLogger().LogOutput('Cleaning up...')
finally:
logger.GetLogger().LogOutput(str(p4gccbs.bs), print_to_console=verbose)
status = p4gccbs.Cleanup()
if __name__ == '__main__':
Main(sys.argv[1:])
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