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"""
Builds out and synchronizes yum repo mirrors.
Initial support for rsync, perhaps reposync coming later.
Copyright 2006-2007, Red Hat, Inc
Michael DeHaan <mdehaan@redhat.com>
This software may be freely redistributed under the terms of the GNU
general public license.
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., 675 Mass Ave, Cambridge, MA 02139, USA.
"""
import os
import os.path
import shutil
import time
import yaml # Howell-Clark version
import sub_process
import sys
import utils
import cobbler_msg
import cexceptions
import traceback
import errno
class RepoSync:
"""
Handles conversion of internal state to the tftpboot tree layout
"""
def __init__(self,config):
"""
Constructor
"""
self.verbose = True
self.config = config
self.distros = config.distros()
self.profiles = config.profiles()
self.systems = config.systems()
self.settings = config.settings()
self.repos = config.repos()
def run(self,verbose=True):
"""
Syncs the current repo configuration file with the filesystem.
"""
self.verbose = verbose
for repo in self.repos:
repo_path = os.path.join(self.settings.webdir, "repo_mirror", repo.name)
mirror = repo.mirror
if not os.path.isdir(repo_path) and not repo.mirror.lower().startswith("rhn://"):
os.makedirs(repo_path)
# if path contains http:// or ftp://, use with yum's reposync.
# else do rsync
lower = mirror.lower()
if lower.startswith("http://") or lower.startswith("ftp://") or lower.startswith("rhn://"):
self.do_reposync(repo)
else:
self.do_rsync(repo)
return True
def do_reposync(self,repo):
"""
Handle copying of http:// and ftp:// repos.
FIXME: support for mirrorlist?
"""
if not os.path.exists("/usr/bin/reposync"):
raise cexceptions.CobblerException("no /usr/bin/reposync found, please install yum-utils")
is_rhn = False
if repo.mirror.lower().startswith("rhn://"):
is_rhn = True
if not repo.keep_updated:
print "- %s is set to not be updated" % repo.name
return True
# create yum config file for use by reposync
store_path = os.path.join(self.settings.webdir, "repo_mirror")
dest_path = os.path.join(store_path, repo.name)
temp_path = os.path.join(store_path, ".origin")
if not os.path.isdir(temp_path) and not is_rhn:
# if doing the rhn sync, reposync will make the directory
os.makedirs(temp_path)
if not is_rhn:
# rhn sync takes different params
temp_file = self.create_local_file(repo, temp_path, output=False)
cmd = "/usr/bin/reposync --config=%s --repoid=%s --download_path=%s" % (temp_file, repo.name, store_path)
print "- %s" % cmd
else:
# this requires that you have entitlements for the server and you give the mirror as rhn://$channelname
rest = repo.mirror[6:]
cmd = "/usr/bin/reposync -r %s --download_path=%s" % (rest, store_path)
print "- %s" % cmd
# downloads using -r use the value given for -r as part of the output dir, so create a symlink with the name the user
# gave such that everything still works as intended and the sync code still works
if not os.path.exists(dest_path):
from1 = os.path.join(self.settings.webdir, "repo_mirror", rest)
print "- symlink: %s -> %s" % (from1, dest_path)
os.symlink(from1, dest_path)
rc = sub_process.call(cmd, shell=True)
if is_rhn:
# now that the directory exists, we can create the config file. this is different from the normal case.
temp_file = self.create_local_file(repo, temp_path, output=False)
if rc !=0:
raise cexceptions.CobblerException("cobbler reposync failed")
arg = None
os.path.walk(dest_path, self.createrepo_walker, arg)
self.create_local_file(repo, dest_path)
def do_rsync(self,repo):
"""
Handle copying of rsync:// and rsync-over-ssh repos.
"""
if not repo.keep_updated:
print "- %s is set to not be updated" % repo.name
return True
dest_path = os.path.join(self.settings.webdir, "repo_mirror", repo.name)
spacer = ""
if not repo.mirror.startswith("rsync://") and not repo.mirror.startswith("/"):
spacer = "-e ssh"
if not repo.mirror.endswith("/"):
repo.mirror = "%s/" % repo.mirror
cmd = "rsync -av %s --delete --delete-excluded --exclude-from=/etc/cobbler/rsync.exclude %s %s" % (spacer, repo.mirror, dest_path)
print "- %s" % cmd
rc = sub_process.call(cmd, shell=True)
if rc !=0:
raise cexceptions.CobblerException("cobbler reposync failed")
arg = {}
print "- walking: %s" % dest_path
os.path.walk(dest_path, self.createrepo_walker, arg)
self.create_local_file(repo, dest_path)
def create_local_file(self, repo, dest_path, output=True):
"""
Two uses:
(A) Create local files that can be used with yum on provisioned clients to make use of thisi mirror.
(B) Create a temporary file for yum to feed into reposync
"""
if output:
fname = os.path.join(dest_path,"config.repo")
else:
fname = os.path.join(dest_path, "%s.repo" % repo.name)
print "- creating: %s" % fname
config_file = open(fname, "w+")
config_file.write("[%s]\n" % repo.name)
config_file.write("name=%s\n" % repo.name)
if output:
config_file.write("baseurl=http://%s/cobbler/repo_mirror/%s\n" % (self.settings.server, repo.name))
else:
config_file.write("baseurl=%s\n" % repo.mirror)
config_file.write("enabled=1\n")
config_file.write("gpgcheck=0\n")
config_file.close()
return fname
def createrepo_walker(self, arg, dirname, fname):
"""
Used to run createrepo on a copied mirror.
"""
target_dir = os.path.dirname(dirname).split("/")[-1]
print "- scanning: %s" % target_dir
if target_dir.lower() in [ "i386", "x86_64", "ia64" ] or (arg is None):
try:
cmd = "createrepo %s" % dirname
print cmd
sub_process.call(cmd, shell=True)
except:
print "- createrepo failed. Is it installed?"
fnames = [] # we're in the right place
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