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#!/usr/bin/python -tt
# 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.
# copyright 2006 Duke University
# author seth vidal
# sync all or the newest packages from a repo to the local path
# TODO:
# have it print out list of changes
# make it work with mirrorlists (silly, really)
# man page/more useful docs
# deal nicely with a package changing but not changing names (ie: replacement)
# criteria
# if a package is not the same and smaller then reget it
# if a package is not the same and larger, delete it and get it again
# always replace metadata files if they're not the same.
import os
import sys
import shutil
import stat
from optparse import OptionParser
from urlparse import urljoin
import yum
import yum.Errors
from yum.misc import getCacheDir
from yum.constants import *
from yum.packageSack import ListPackageSack
import rpmUtils.arch
import logging
from urlgrabber.progress import TextMeter
import urlgrabber
# for yum 2.4.X compat
def sortPkgObj(pkg1 ,pkg2):
"""sorts a list of yum package objects by name"""
if pkg1.name > pkg2.name:
return 1
elif pkg1.name == pkg2.name:
return 0
else:
return -1
class RepoSync(yum.YumBase):
def __init__(self, opts):
yum.YumBase.__init__(self)
self.logger = logging.getLogger('yum.verbose.reposync')
self.opts = opts
def localpkgs(directory):
names = os.listdir(directory)
cache = {}
for name in names:
fn = os.path.join(directory, name)
try:
st = os.lstat(fn)
except os.error:
continue
if stat.S_ISDIR(st.st_mode):
subcache = localpkgs(fn)
for pkg in subcache.keys():
cache[pkg] = subcache[pkg]
elif stat.S_ISREG(st.st_mode) and name.endswith(".rpm"):
cache[name] = { 'path': fn, 'size': st.st_size, 'device': st.st_dev }
return cache
def is_subpath(path, root):
root = os.path.realpath(root)
path = os.path.realpath(os.path.join(root, path))
# join() is used below to ensure root ends with a slash
return path.startswith(os.path.join(root, ''))
def parseArgs():
usage = """
Reposync is used to synchronize a remote yum repository to a local
directory using yum to retrieve the packages.
%s [options]
""" % sys.argv[0]
parser = OptionParser(usage=usage)
parser.add_option("-c", "--config", default='/etc/yum.conf',
help='config file to use (defaults to /etc/yum.conf)')
parser.add_option("-a", "--arch", default=None,
help='act as if running the specified arch (default: current arch, note: does not override $releasever)')
parser.add_option("--source", default=False, dest="source", action="store_true",
help='operate on source packages')
parser.add_option("-r", "--repoid", default=[], action='append',
help="specify repo ids to query, can be specified multiple times (default is all enabled)")
parser.add_option("-e", "--cachedir",
help="directory in which to store metadata")
parser.add_option("-t", "--tempcache", default=False, action="store_true",
help="Use a temp dir for storing/accessing yum-cache")
parser.add_option("-d", "--delete", default=False, action="store_true",
help="delete local packages no longer present in repository")
parser.add_option("-p", "--download_path", dest='destdir',
default=os.getcwd(), help="Path to download packages to: defaults to current dir")
parser.add_option("--norepopath", dest='norepopath', default=False, action="store_true",
help="Don't add the reponame to the download path. Can only be used when syncing a single repository (default is to add the reponame)")
parser.add_option("-g", "--gpgcheck", default=False, action="store_true",
help="Remove packages that fail GPG signature checking after downloading")
parser.add_option("-u", "--urls", default=False, action="store_true",
help="Just list urls of what would be downloaded, don't download")
parser.add_option("-n", "--newest-only", dest='newest', default=False, action="store_true",
help="Download only newest packages per-repo")
parser.add_option("-q", "--quiet", default=False, action="store_true",
help="Output as little as possible")
parser.add_option("-l", "--plugins", default=False, action="store_true",
help="enable yum plugin support")
parser.add_option("-m", "--downloadcomps", default=False, action="store_true",
help="also download comps.xml")
parser.add_option("","--download-metadata", dest="downloadmd",
default=False, action="store_true",
help="download all the non-default metadata")
parser.add_option("", "--allow-path-traversal", default=False,
action="store_true",
help="Allow packages stored outside their repo directory to be synced "
"(UNSAFE, USE WITH CAUTION!)")
(opts, args) = parser.parse_args()
return (opts, args)
def main():
(opts, junk) = parseArgs()
if not os.path.exists(opts.destdir) and not opts.urls:
try:
os.makedirs(opts.destdir)
except OSError, e:
print >> sys.stderr, "Error: Cannot create destination dir %s" % opts.destdir
sys.exit(1)
if not os.access(opts.destdir, os.W_OK) and not opts.urls:
print >> sys.stderr, "Error: Cannot write to destination dir %s" % opts.destdir
sys.exit(1)
my = RepoSync(opts=opts)
my.doConfigSetup(fn=opts.config, init_plugins=opts.plugins)
# Force unprivileged users to have a private temporary cachedir
# if they've not given an explicit cachedir
if os.getuid() != 0 and not opts.cachedir:
opts.tempcache = True
if opts.tempcache:
cachedir = getCacheDir()
if cachedir is None:
print >> sys.stderr, "Error: Could not make cachedir, exiting"
sys.exit(50)
my.repos.setCacheDir(cachedir)
elif opts.cachedir:
my.repos.setCacheDir(opts.cachedir)
# Use progress bar display when downloading repo metadata
# and package files ... needs to be setup before .repos (ie. RHN/etc.).
if not opts.quiet:
my.repos.setProgressBar(TextMeter(fo=sys.stdout))
my.doRepoSetup()
if len(opts.repoid) > 0:
myrepos = []
# find the ones we want
for glob in opts.repoid:
myrepos.extend(my.repos.findRepos(glob))
# disable them all
for repo in my.repos.repos.values():
repo.disable()
# enable the ones we like
for repo in myrepos:
repo.enable()
# --norepopath can only be sensibly used with a single repository:
if len(my.repos.listEnabled()) > 1 and opts.norepopath:
print >> sys.stderr, "Error: Can't use --norepopath with multiple repositories"
sys.exit(1)
try:
arches = rpmUtils.arch.getArchList(opts.arch)
if opts.source:
arches += ['src']
my.doSackSetup(arches)
except yum.Errors.RepoError, e:
print >> sys.stderr, "Error setting up repositories: %s" % e
# maybe this shouldn't be entirely fatal
sys.exit(1)
exit_code = 0
for repo in my.repos.listEnabled():
reposack = ListPackageSack(my.pkgSack.returnPackages(repoid=repo.id))
if opts.newest:
download_list = reposack.returnNewestByNameArch()
else:
download_list = list(reposack)
if opts.norepopath:
local_repo_path = opts.destdir
else:
local_repo_path = opts.destdir + '/' + repo.id
# Ensure we don't traverse out of local_repo_path by dropping any
# packages whose remote_path is absolute or contains up-level
# references (unless explicitly allowed).
# See RHBZ#1600221 for details.
if not opts.allow_path_traversal:
newlist = []
skipped = False
for pkg in download_list:
if is_subpath(pkg.remote_path, local_repo_path):
newlist.append(pkg)
continue
my.logger.warning(
'WARNING: skipping package %s: remote path "%s" not '
'within repodir, unsafe to mirror locally'
% (pkg, pkg.remote_path)
)
skipped = True
if skipped:
my.logger.info(
'You can enable unsafe remote paths by using '
'--allow-path-traversal (see reposync(1) for details)'
)
download_list = newlist
if opts.delete and os.path.exists(local_repo_path):
current_pkgs = localpkgs(local_repo_path)
download_set = {}
for pkg in download_list:
remote = pkg.returnSimple('relativepath')
rpmname = os.path.basename(remote)
download_set[rpmname] = 1
for pkg in current_pkgs:
if pkg in download_set:
continue
if not opts.quiet:
my.logger.info("Removing obsolete %s", pkg)
os.unlink(current_pkgs[pkg]['path'])
if opts.downloadcomps or opts.downloadmd:
if not os.path.exists(local_repo_path):
try:
os.makedirs(local_repo_path)
except IOError, e:
my.logger.error("Could not make repo subdir: %s" % e)
my.closeRpmDB()
sys.exit(1)
if opts.downloadcomps:
wanted_types = ['group']
if opts.downloadmd:
wanted_types = repo.repoXML.fileTypes()
for ftype in repo.repoXML.fileTypes():
if ftype in ['primary', 'primary_db', 'filelists',
'filelists_db', 'other', 'other_db']:
continue
if ftype not in wanted_types:
continue
try:
resultfile = repo.retrieveMD(ftype)
basename = os.path.basename(resultfile)
if ftype == 'group' and opts.downloadcomps: # for compat with how --downloadcomps saved the comps file always as comps.xml
basename = 'comps.xml'
shutil.copyfile(resultfile, "%s/%s" % (local_repo_path, basename))
except yum.Errors.RepoMDError,e :
if not opts.quiet:
my.logger.error("Unable to fetch metadata: %s" % e)
remote_size = 0
local_size = 0
if not opts.urls:
for pkg in download_list:
remote = pkg.returnSimple('relativepath')
local = local_repo_path + '/' + remote
sz = int(pkg.returnSimple('packagesize'))
if os.path.exists(local) and os.path.getsize(local) == sz:
continue
remote_size += sz
if hasattr(urlgrabber.progress, 'text_meter_total_size'):
urlgrabber.progress.text_meter_total_size(remote_size)
download_list.sort(sortPkgObj)
n = 0
for pkg in download_list:
n = n + 1
repo = my.repos.getRepo(pkg.repoid)
remote = pkg.returnSimple('relativepath')
local = local_repo_path + '/' + remote
localdir = os.path.dirname(local)
if not os.path.exists(localdir):
os.makedirs(localdir)
sz = int(pkg.returnSimple('packagesize'))
if os.path.exists(local) and os.path.getsize(local) == sz:
if not opts.quiet:
my.logger.error("[%s: %-5d of %-5d ] Skipping existing %s" % (repo.id, n, len(download_list), remote))
continue
if opts.urls:
baseurl = None
if repo.urls[0][-1] != '/':
baseurl = repo.urls[0] + '/'
else:
baseurl = repo.urls[0]
url = urljoin(baseurl,remote)
print '%s' % url
continue
# make sure the repo subdir is here before we go on.
if not os.path.exists(local_repo_path):
try:
os.makedirs(local_repo_path)
except IOError, e:
my.logger.error("Could not make repo subdir: %s" % e)
my.closeRpmDB()
sys.exit(1)
# Disable cache otherwise things won't download
repo.cache = 0
if not opts.quiet:
my.logger.info( '[%s: %-5d of %-5d ] Downloading %s' % (repo.id, n, len(download_list), remote))
pkg.localpath = local # Hack: to set the localpath we want.
try:
path = repo.getPackage(pkg)
except yum.Errors.RepoError, e:
my.logger.error("Could not retrieve package %s. Error was %s" % (pkg, str(e)))
local_size += sz
exit_code = 1
continue
local_size += sz
if hasattr(urlgrabber.progress, 'text_meter_total_size'):
urlgrabber.progress.text_meter_total_size(remote_size, local_size)
if opts.gpgcheck:
result, error = my.sigCheckPkg(pkg)
if result != 0:
if result == 1:
my.logger.warning('Removing %s, due to missing GPG key.' % os.path.basename(remote))
elif result == 2:
my.logger.warning('Removing %s due to failed signature check.' % os.path.basename(remote))
else:
my.logger.warning('Removing %s due to failed signature check: %s' % (os.path.basename(remote), error))
os.unlink(path)
exit_code = 1
continue
if not os.path.exists(local) or not os.path.samefile(path, local):
shutil.copy2(path, local)
my.closeRpmDB()
sys.exit(exit_code)
if __name__ == "__main__":
main()
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