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#!/usr/bin/python
# vim:sts=2 sw=2
import sys
import shutil
import urllib2
import urllib
import os
import traceback
import time
if os.name == 'nt':
from win32file import RemoveDirectory, DeleteFile, \
GetFileAttributesW, SetFileAttributesW, \
FILE_ATTRIBUTE_NORMAL, FILE_ATTRIBUTE_DIRECTORY
from win32api import FindFiles
clobber_suffix = '.deleteme'
def ts_to_str(ts):
if ts is None:
return None
return time.strftime("%Y-%m-%d %H:%M:%S", time.localtime(ts))
def write_file(ts, fn):
assert isinstance(ts, int)
f = open(fn, "w")
f.write(str(ts))
f.close()
def read_file(fn):
if not os.path.exists(fn):
return None
data = open(fn).read().strip()
try:
return int(data)
except ValueError:
return None
def rmdirRecursiveWindows(dir):
"""Windows-specific version of rmdirRecursive that handles
path lengths longer than MAX_PATH.
"""
dir = os.path.realpath(dir)
# Make sure directory is writable
SetFileAttributesW('\\\\?\\' + dir, FILE_ATTRIBUTE_NORMAL)
for ffrec in FindFiles('\\\\?\\' + dir + '\\*.*'):
file_attr = ffrec[0]
name = ffrec[8]
if name == '.' or name == '..':
continue
full_name = os.path.join(dir, name)
if file_attr & FILE_ATTRIBUTE_DIRECTORY:
rmdirRecursiveWindows(full_name)
else:
SetFileAttributesW('\\\\?\\' + full_name, FILE_ATTRIBUTE_NORMAL)
DeleteFile('\\\\?\\' + full_name)
RemoveDirectory('\\\\?\\' + dir)
def rmdirRecursive(dir):
"""This is a replacement for shutil.rmtree that works better under
windows. Thanks to Bear at the OSAF for the code.
(Borrowed from buildbot.slave.commands)"""
if os.name == 'nt':
rmdirRecursiveWindows(dir)
return
if not os.path.exists(dir):
# This handles broken links
if os.path.islink(dir):
os.remove(dir)
return
if os.path.islink(dir):
os.remove(dir)
return
# Verify the directory is read/write/execute for the current user
os.chmod(dir, 0700)
for name in os.listdir(dir):
full_name = os.path.join(dir, name)
# on Windows, if we don't have write permission we can't remove
# the file/directory either, so turn that on
if os.name == 'nt':
if not os.access(full_name, os.W_OK):
# I think this is now redundant, but I don't have an NT
# machine to test on, so I'm going to leave it in place
# -warner
os.chmod(full_name, 0600)
if os.path.isdir(full_name):
rmdirRecursive(full_name)
else:
# Don't try to chmod links
if not os.path.islink(full_name):
os.chmod(full_name, 0700)
os.remove(full_name)
os.rmdir(dir)
def do_clobber(dir, dryrun=False, skip=None):
try:
for f in os.listdir(dir):
if skip is not None and f in skip:
print "Skipping", f
continue
clobber_path = f + clobber_suffix
if os.path.isfile(f):
print "Removing", f
if not dryrun:
if os.path.exists(clobber_path):
os.unlink(clobber_path)
# Prevent repeated moving.
if f.endswith(clobber_suffix):
os.unlink(f)
else:
shutil.move(f, clobber_path)
os.unlink(clobber_path)
elif os.path.isdir(f):
print "Removing %s/" % f
if not dryrun:
if os.path.exists(clobber_path):
rmdirRecursive(clobber_path)
# Prevent repeated moving.
if f.endswith(clobber_suffix):
rmdirRecursive(f)
else:
shutil.move(f, clobber_path)
rmdirRecursive(clobber_path)
except:
print "Couldn't clobber properly, bailing out."
sys.exit(1)
def getClobberDates(clobberURL, branch, buildername, builddir, slave, master):
params = dict(branch=branch, buildername=buildername,
builddir=builddir, slave=slave, master=master)
url = "%s?%s" % (clobberURL, urllib.urlencode(params))
print "Checking clobber URL: %s" % url
# The timeout arg was added to urlopen() at Python 2.6
# Deprecate this test when esr17 reaches EOL
if sys.version_info[:2] < (2, 6):
data = urllib2.urlopen(url).read().strip()
else:
data = urllib2.urlopen(url, timeout=30).read().strip()
retval = {}
try:
for line in data.split("\n"):
line = line.strip()
if not line:
continue
builddir, builder_time, who = line.split(":")
builder_time = int(builder_time)
retval[builddir] = (builder_time, who)
return retval
except ValueError:
print "Error parsing response from server"
print data
raise
if __name__ == "__main__":
from optparse import OptionParser
parser = OptionParser(
"%prog [options] clobberURL branch buildername builddir slave master")
parser.add_option("-n", "--dry-run", dest="dryrun", action="store_true",
default=False, help="don't actually delete anything")
parser.add_option("-t", "--periodic", dest="period", type="float",
default=None, help="hours between periodic clobbers")
parser.add_option('-s', '--skip', help='do not delete this file/directory',
action='append', dest='skip', default=['last-clobber'])
parser.add_option('-d', '--dir', help='clobber this directory',
dest='dir', default='.', type='string')
parser.add_option('-v', '--verbose', help='be more verbose',
dest='verbose', action='store_true', default=False)
options, args = parser.parse_args()
if len(args) != 6:
parser.error("Incorrect number of arguments")
if options.period:
periodicClobberTime = options.period * 3600
else:
periodicClobberTime = None
clobberURL, branch, builder, my_builddir, slave, master = args
try:
server_clobber_dates = getClobberDates(
clobberURL, branch, builder, my_builddir, slave, master)
except:
if options.verbose:
traceback.print_exc()
print "Error contacting server"
sys.exit(1)
if options.verbose:
print "Server gave us", server_clobber_dates
now = int(time.time())
# Add ourself to the server_clobber_dates if it's not set
# This happens when this slave has never been clobbered
if my_builddir not in server_clobber_dates:
server_clobber_dates[my_builddir] = None, ""
root_dir = os.path.abspath(options.dir)
for builddir, (server_clobber_date, who) in server_clobber_dates.items():
builder_dir = os.path.join(root_dir, builddir)
if not os.path.isdir(builder_dir):
print "%s doesn't exist, skipping" % builder_dir
continue
os.chdir(builder_dir)
our_clobber_date = read_file("last-clobber")
clobber = False
clobberType = None
print "%s:Our last clobber date: " % builddir, ts_to_str(our_clobber_date)
print "%s:Server clobber date: " % builddir, ts_to_str(server_clobber_date)
# If we don't have a last clobber date, then this is probably a fresh build.
# We should only do a forced server clobber if we know when our last clobber
# was, and if the server date is more recent than that.
if server_clobber_date is not None and our_clobber_date is not None:
# If the server is giving us a clobber date, compare the server's idea of
# the clobber date to our last clobber date
if server_clobber_date > our_clobber_date:
# If the server's clobber date is greater than our last clobber date,
# then we should clobber.
clobber = True
clobberType = "forced"
# We should also update our clobber date to match the server's
our_clobber_date = server_clobber_date
if who:
print "%s:Server is forcing a clobber, initiated by %s" % (builddir, who)
else:
print "%s:Server is forcing a clobber" % builddir
if not clobber:
# Disable periodic clobbers for builders that aren't my_builddir
if builddir != my_builddir:
continue
# Next, check if more than the periodicClobberTime period has passed since
# our last clobber
if our_clobber_date is None:
# We've never been clobbered
# Set our last clobber time to now, so that we'll clobber
# properly after periodicClobberTime
clobberType = "purged"
our_clobber_date = now
write_file(our_clobber_date, "last-clobber")
elif periodicClobberTime and now > our_clobber_date + periodicClobberTime:
# periodicClobberTime has passed since our last clobber
clobber = True
clobberType = "periodic"
# Update our clobber date to now
our_clobber_date = now
print "%s:More than %s seconds have passed since our last clobber" % (builddir, periodicClobberTime)
if clobber:
# Finally, perform a clobber if we're supposed to
print "%s:Clobbering..." % builddir
do_clobber(builder_dir, options.dryrun, options.skip)
write_file(our_clobber_date, "last-clobber")
# If this is the build dir for the current job, display the clobber type in TBPL.
# Note in the case of purged clobber, we output the clobber type even though no
# clobber was performed this time.
if clobberType and builddir == my_builddir:
print "TinderboxPrint: %s clobber" % clobberType
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