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|
#! /usr/bin/python
#
# rankmirrors - read a list of mirrors from a file and rank them by speed
# @configure_input@
#
# Copyright (c) 2002-2007 by Judd Vinet <jvinet@zeroflux.org>
#
# 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
# USA.
#
import os, sys, datetime, time, socket, urllib2
from optparse import OptionParser
from string import Template
def createOptParser():
usage = "usage: %prog [options] MIRRORFILE | URL"
version = "%prog (pacman) @PACKAGE_VERSION@\n" \
"Copyright (C) 2002-2007 Judd Vinet <jvinet@zeroflux.org>.\n\n" \
"This is free software; see the source for copying conditions.\n" \
"There is NO WARRANTY, to the extent permitted by law."
description = "Ranks pacman mirrors by their connection and opening " \
"speed. Pacman mirror files are located in /etc/pacman.d/. It " \
"can also rank one mirror if the URL is provided."
parser = OptionParser(usage = usage, version = version,
description = description)
parser.add_option("-n", type = "int", dest = "num", default = 0,
help = "number of servers to output, 0 for all")
parser.add_option("-t", "--times", action = "store_true",
dest = "times", default = False,
help = "only output mirrors and their response times")
parser.add_option("-u", "--url", action = "store_true", dest = "url",
default = False, help = "test a specific url")
parser.add_option("-v", "--verbose", action = "store_true",
dest = "verbose", default = False,
help = "be verbose in ouptut")
# The following two options should be automatic
#parser.add_option("-h", "--help", action = "help")
#parser.add_option("-V", "--version", action = "version")
return parser
def timeCmd(cmd):
before = time.time()
try:
cmd()
except KeyboardInterrupt, ki:
raise ki
except socket.timeout, ioe:
return 'timeout'
except Exception, e:
return 'unreachable'
return time.time() - before
def talkToServer(serverUrl):
opener = urllib2.build_opener()
# retrieve first 50,000 bytes only
tmp = opener.open(serverUrl).read(50000)
def getFuncToTime(serverUrl):
return lambda : talkToServer(serverUrl)
def cmpPairBySecond(p1, p2):
if p1[1] == p2[1]:
return 0
if p1[1] < p2[1]:
return -1
return 1
def printResults(servers, time, verbose, num):
items = servers.items()
items.sort(cmpPairBySecond)
itemsLen = len(items)
numToShow = num
if numToShow > itemsLen or numToShow == 0:
numToShow = itemsLen
if itemsLen > 0:
if time:
print
print ' Servers sorted by time (seconds):'
for i in items[0:numToShow]:
if i[1] == 'timeout' or i[1] == 'unreachable':
print i[0], ':', i[1]
else:
print i[0], ':', "%.2f" % i[1]
else:
for i in items[0:numToShow]:
print 'Server =', i[0]
if __name__ == "__main__":
parser = createOptParser()
(options, args) = parser.parse_args()
if len(args) != 1:
parser.print_help(sys.stderr)
sys.exit(0)
# allows connections to time out if they take too long
socket.setdefaulttimeout(10)
if options.url:
if options.verbose:
print 'Testing', args[0] + '...'
try:
serverToTime = timeCmd(getFuncToTime(args[0]))
except KeyboardInterrupt, ki:
sys.exit(1)
if serverToTime == 'timeout' or serverToTime == 'unreachable':
print args[0], ':', serverToTime
else:
print args[0], ':', "%.2f" % serverToTime
sys.exit(0)
if not os.path.isfile(args[0]):
print >>sys.stderr, 'rankmirrors: file', args[0], 'does not exist.'
sys.exit(1)
fl = open(args[0], 'r')
serverToTime = {}
if options.times:
print 'Querying servers, this may take some time...'
else:
print "# Server list generated by rankmirrors on",
print datetime.date.today()
for ln in fl.readlines():
splitted = ln.split('=')
if splitted[0].strip() != 'Server':
if not options.times:
print ln,
continue
serverUrl = splitted[1].strip()
if serverUrl[-1] == '\n':
serverUrl = serverUrl[0:-1]
if options.verbose and options.times:
print serverUrl, '...',
elif options.verbose:
print '#', serverUrl, '...',
elif options.times:
print ' * ',
sys.stdout.flush()
# if the $repo var is used in the url, replace it by core
tempUrl = Template(serverUrl).safe_substitute(repo='core')
# add *.db.tar.gz to server name. the repo name is parsed
# from the mirror url; it is the third (or fourth) dir
# from the end, where the url is http://foo/bar/REPO/os/arch
try:
splitted2 = tempUrl.split('/')
if tempUrl[-1] != '/':
repoName = splitted2[-3]
dbFileName = '/' + repoName + '.db.tar.gz'
else:
repoName = splitted2[-4]
dbFileName = repoName + '.db.tar.gz'
except:
dbFileName = ''
try:
serverToTime[serverUrl] = timeCmd(getFuncToTime(tempUrl + dbFileName))
if options.verbose:
try:
print "%.2f" % serverToTime[serverUrl]
except:
print serverToTime[serverUrl]
except:
print
printResults(serverToTime, options.times, options.verbose,
options.num)
sys.exit(0)
printResults(serverToTime, options.times, options.verbose, options.num)
# vim: set ts=4 sw=4 et:
|
