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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 Library 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.
# Written by Seth Vidal
# Sections taken from Mach by Thomas Vander Stichele
import os
import os.path
import sys
import rpmUtils
import rpm
import glob
import shutil
import types
import grp
from exceptions import Exception
from optparse import OptionParser
__VERSION__ = '0.5'
def error(msg):
print >> sys.stderr, msg
# result/exit codes
# 0 = yay!
# 1 = something happened - it's bad
# 30 = Yum emitted an error of some sort
# 40 = some error in the pkg we're building
# 10 = problem building the package
# 20 = error in the chroot of some kind
class Error(Exception):
def __init__(self, msg):
Exception.__init__(self)
self.msg = msg
self.resultcode = 1
def __str__(self):
return self.msg
class YumError(Error):
def __init__(self, msg):
Error.__init__(self, msg)
self.msg = msg
self.resultcode = 30
class PkgError(Error):
def __init__(self, msg):
Error.__init__(self, msg)
self.msg = msg
self.resultcode = 40
class BuildError(Error):
def __init__(self, msg):
Error.__init__(self, msg)
self.msg = msg
self.resultcode = 10
class RootError(Error):
def __init__(self, msg):
Error.__init__(self, msg)
self.msg = msg
self.resultcode = 20
class LogBuffer:
lines = []
def clear(self):
self.lines = []
def write(self, line):
if line[-1] != '\n':
line += '\n'
self.lines.append(line)
def writelines(self, lines):
for l in lines:
self.write(l)
def readlines(self):
return self.lines
def flush(self):
pass
class Root:
"""base root object"""
def __init__(self, config):
self._state = 'unstarted'
self.tmplog = LogBuffer()
self.config = config
root = config['root']
if config.has_key('unique-ext'):
root = "%s-%s" % (root, config['unique-ext'])
self.basedir = os.path.join(config['basedir'], root)
self.target_arch = config['target_arch']
self.rootdir = os.path.join(self.basedir, 'root')
self.homedir = self.config['chroothome']
self.builddir = os.path.join(self.homedir, 'build')
if not self.config.has_key('resultdir'):
self.resultdir = os.path.join(self.basedir, 'result')
else:
self.resultdir = self.config['resultdir']
if not self.config.has_key('statedir'):
self.statedir = os.path.join(self.basedir, 'state')
else:
self.statedir = self.config['statedir']
self._ensure_dir(self.statedir)
self.state("init")
if config['clean']:
self.clean()
self._ensure_dir(self.basedir)
self._ensure_dir(self.rootdir)
self._ensure_dir(self.statedir)
self._ensure_dir(self.resultdir)
# open the log files
root_log = os.path.join(self.resultdir, 'root.log')
self._root_log = open(root_log, 'w+')
build_log = os.path.join(self.resultdir, 'build.log')
self._build_log = open(build_log, 'w+')
# write out the config file
cfg_log = os.path.join(self.resultdir, 'mockconfig.log')
cfgout = open(cfg_log, 'w+')
cfgout.write('rootdir = %s\n' % self.rootdir)
cfgout.write('resultdir = %s\n' % self.resultdir)
cfgout.write('statedir = %s\n' % self.statedir)
cfgout.flush()
cfgout.close()
def log(self, msg):
if self.config['quiet']: return
print msg
def root_log(self, content):
if type(content) is list:
self.tmplog.writelines(content)
else:
self.tmplog.write(content)
# do this so if the log dir isn't ready yet we can still get those logs
if hasattr(self, '_root_log'):
self._root_log.writelines(self.tmplog.readlines())
self._root_log.flush()
self.tmplog.clear()
def debug(self, msg):
if self.config['debug']:
print "DEBUG: %s" % msg
def clean(self):
"""clean out chroot with extreme prejudice :)"""
self.state("clean")
self.root_log('Cleaning Root')
if os.path.exists('%s/%s' % (self.rootdir, 'proc')):
self._umount('proc')
if os.path.exists('%s/%s' % (self.rootdir, 'dev/pts')):
self._umount('dev/pts')
if os.path.exists(self.basedir):
cmd = '%s -rfv %s' % (self.config['rm'], self.basedir)
(retval, output) = self.do(cmd)
if retval != 0:
error("Errors cleaning out chroot: %s" % output)
if os.path.exists(self.rootdir):
raise RootError, "Failed to clean basedir, exiting"
def state(self, curstate=None):
"""returns/writes state. If curstate is given then write the
state out and report it back. If curstate is not given report
self.state"""
if curstate:
sf = os.path.join(self.statedir, 'status')
sfo = open(sf, 'w')
sfo.write('%s\n' % curstate)
sfo.close()
self._state = curstate
self.log(curstate)
else:
return self._state
def prep(self):
self.state("prep")
self.log("This may take a while")
self._prep_install()
if self.config['clean']:
cmd = 'install %s' % self.config['chroot_dep_package']
else:
cmd = 'update'
self.yum(cmd)
self._prep_build()
def yum(self, cmd):
"""use yum to install packages/package groups into the chroot"""
# mock-helper yum --installroot=rootdir cmd
basecmd = '%s --installroot %s' % (self.config['yum'], self.rootdir)
self._mount() # check it again
command = '%s %s' % (basecmd, cmd)
self.debug("yum: command %s" % command)
(retval, output) = self.do(command)
if retval != 0:
raise YumError, "Error peforming yum command: %s" % command
return (retval, output)
def install_build_deps(self, srpm):
"""take an srpm, install it, rebuild it to srpm,
return chroot-local path to the resulting srpm"""
self._mount() # check it again
bd_out = '%s%s' % (self.rootdir, self.builddir)
# init build_dir
self._build_dir_setup()
# copy srpm into chroot
srpmfn = os.path.basename(srpm)
dest = self.rootdir + '/' + self.builddir + '/' + 'originals'
shutil.copy2(srpm, dest)
rootdest = os.path.join(self.builddir, 'originals', srpmfn)
cmd = "%s -c 'rpm -Uvh --nodeps %s' %s" % (self.config['runuser'],
rootdest, self.config['chrootuser'])
(retval, output) = self.do_chroot(cmd)
if retval != 0:
msg = "Error installing srpm: %s" % srpmfn
self.root_log(msg)
raise RootError, msg
specdir = os.path.join(bd_out, 'SPECS')
specs = glob.glob('%s/*.spec' % specdir)
if len(specs) < 1:
msg = "No Spec file found in srpm: %s" % srpmfn
self.root_log(msg)
raise PkgError, msg
spec = specs[0] # if there's more than one then someone is an idiot
chrootspec = spec.replace(self.rootdir, '') # get rid of rootdir prefix
# grab the .spec file from the specdir
# run rpmbuild -bs --nodeps specfile
cmd = "%s -c 'rpmbuild -bs --target %s --nodeps %s' %s" % (self.config['runuser'],
self.target_arch, chrootspec, self.config['chrootuser'])
(retval, output) = self.do_chroot(cmd)
if retval != 0:
raise PkgError, "Error building srpm from installed spec. See Root log."
srpmdir = os.path.join(bd_out, 'SRPMS')
srpms = glob.glob('%s/*.src.rpm' % srpmdir)
if len(srpms) < 1:
msg = "No srpm created from specfile from srpm: %s" % srpmfn
self.root_log(msg)
raise PkgError, msg
srpm = srpms[0] # if there's more than one then something is weird
ts = rpmUtils.transaction.initReadOnlyTransaction(root=self.rootdir)
hdr = rpmUtils.miscutils.hdrFromPackage(ts, srpm)
# get text buildreqs
buildreqs = self._text_requires_from_hdr(hdr)
arg_string = ""
for item in buildreqs:
arg_string = arg_string + " " + "'%s'" % item
# everything exists, okay, install them all.
# pass build reqs (as strings) to installer
if arg_string != "":
(retval, output) = self.yum('resolvedep %s' % arg_string)
for line in output.split('\n'):
if line.find('No Package Found for') != -1:
errorpkg = line.replace('No Package Found for', '')
raise BuildError, "Cannot find build req %s. Exiting." % errorpkg
# nothing made us exit, so we continue
self.yum('install %s' % arg_string)
return srpm
def build(self, srpm):
"""build an srpm into binary rpms, capture log"""
self.state("setup")
# take srpm, pass to install_build_deps() to rebuild it to a valid srpm
# and do build deps
srpm_out = self.install_build_deps(srpm)
srpm_in = srpm_out.replace(self.rootdir, '')
srpmfn = os.path.basename(srpm_in)
# run with --nodeps b/c of the check above we know we have our build
# deps satisfied.
cmd = "cd /;%s -c 'rpmbuild --rebuild --target %s --nodeps %s' %s" % (
self.config['runuser'], self.target_arch, srpm_in,
self.config['chrootuser'])
self.state("build")
(retval, output) = self.do_chroot(cmd)
if retval != 0:
raise BuildError, "Error building package from %s, See build log" % srpmfn
bd_out = self.rootdir + self.builddir
rpms = glob.glob(bd_out + '/RPMS/*.rpm')
srpms = glob.glob(bd_out + '/SRPMS/*.rpm')
packages = rpms + srpms
self.root_log("Copying packages to result dir")
for item in packages:
shutil.copy2(item, self.resultdir)
def close(self):
"""unmount things and clean up a bit"""
self.root_log("Cleaning up...")
self.state("ending")
self._umount_by_file()
self._build_log.close()
self.state("done")
self.root_log("Done.")
self._root_log.close()
def _ensure_dir(self, path):
"""check for dir existence and/or makedir, if error out then raise Error"""
msg = "ensuring dir %s" % path
self.debug(msg)
self.root_log("%s" % msg)
if not os.path.exists(path):
try:
os.makedirs(path)
except OSError, e:
raise Error, "Could not create dir %s. Error: %s" % (path, e)
def _mount(self):
"""mount proc and devpts into chroot"""
mf = os.path.join(self.statedir, 'mounted-locations')
track = open(mf, 'w+')
# make the procdir if we don't have it
# mount up proc
procdir = os.path.join(self.rootdir, 'proc')
self._ensure_dir(procdir)
self.debug("mounting proc in %s" % procdir)
command = '%s -t proc proc %s/proc' % (self.config['mount'],
self.rootdir)
track.write('proc\n')
(retval, output) = self.do(command)
track.flush()
if retval != 0:
if output.find('already mounted') == -1: # probably won't work in other LOCALES
error("could not mount proc error was: %s" % output)
# devpts
#
devptsdir = os.path.join(self.rootdir, 'dev/pts')
self._ensure_dir(devptsdir)
self.debug("mounting devpts in %s" % devptsdir)
command = '%s -t devpts devpts %s' % (self.config['mount'], devptsdir)
track.write('dev/pts\n')
(retval, output) = self.do(command)
track.flush()
track.close()
if retval != 0:
if output.find('already mounted') == -1: # probably won't work in other LOCALES
raise RootError, "could not mount /dev/pts error was: %s" % output
def _umount(self, path):
item = '%s/%s' % (self.rootdir, path)
command = '%s %s' % (self.config['umount'], item)
(retval, output) = self.do(command)
if retval != 0:
if output.find('not mounted') == -1: # this probably won't work in other LOCALES
raise RootError, "could not umount %s error was: %s" % (path, output)
def _umount_by_file(self):
mf = os.path.join(self.statedir, 'mounted-locations')
if not os.path.exists(mf):
return
track = open(mf, 'r')
lines = track.readlines()
track.close()
for item in lines:
item = item.replace('\n','')
if len(item.strip()) < 1:
continue
self._umount(item)
# poof, no more file
if os.path.exists(mf):
os.unlink(mf)
def do(self, command):
"""execute given command outside of chroot"""
retval = 0
msg = "Executing %s" % command
self.debug(msg)
self.root_log(msg)
if hasattr(self, '_root_log'):
logfile = self._root_log
else:
logfile = self.tmplog
if self.state() == "build":
logfile = self._build_log
pipe = os.popen('{ ' + command + '; } 2>&1', 'r')
output = ""
for line in pipe:
logfile.write(line)
if self.config['debug']:
print line[:-1]
sys.stdout.flush()
logfile.flush()
output += line
status = pipe.close()
if status is None:
status = 0
if os.WIFEXITED(status):
retval = os.WEXITSTATUS(status)
return (retval, output)
def do_chroot(self, command, fatal = False, exitcode=None):
"""execute given command in root"""
cmd = ""
if command.find('-c "') > -1:
cmd = "%s %s %s" % (self.config['chroot'], self.rootdir, command)
else:
# we use double quotes to protect the commandline since
# we use single quotes to protect the args in command
# weird - why is it finding this at all.
cmd = "%s %s %s - root -c \"%s\"" % (self.config['chroot'],
self.rootdir,
self.config['runuser'],
command)
(ret, output) = self.do(cmd)
if (ret != 0) and fatal:
self.close()
if exitcode:
ret = exitcode
error("Non-zero return value %d on executing %s\n" % (ret, cmd))
sys.exit(ret)
return (ret, output)
def _text_requires_from_hdr(self, hdr):
"""take a header and hand back a unique'd list of the requires as
strings"""
reqlist = []
names = hdr[rpm.RPMTAG_REQUIRENAME]
flags = hdr[rpm.RPMTAG_REQUIREFLAGS]
ver = hdr[rpm.RPMTAG_REQUIREVERSION]
if names is not None:
tmplst = zip(names, flags, ver)
for (n, f, v) in tmplst:
if n.startswith('rpmlib'):
continue
req = rpmUtils.miscutils.formatRequire(n, v, f)
reqlist.append(req)
return rpmUtils.miscutils.unique(reqlist)
def _prep_install(self):
"""prep chroot for installation"""
# make chroot dir
# make /dev, mount /proc
#
for item in [self.basedir, self.rootdir, self.statedir, self.resultdir,
os.path.join(self.rootdir, 'var/lib/rpm'),
os.path.join(self.rootdir, 'var/log'),
os.path.join(self.rootdir, 'dev'),
os.path.join(self.rootdir, 'etc/rpm'),
os.path.join(self.rootdir, 'tmp'),
os.path.join(self.rootdir, 'var/tmp'),
os.path.join(self.rootdir, 'etc/yum.repos.d')]:
self._ensure_dir(item)
self._mount()
# we need stuff
devices = [('null', 'c', '1', '3', '666'),
('urandom', 'c', '1', '9', '644'),
('random', 'c', '1', '9', '644'),
('full', 'c', '1', '7', '666'),
('ptmx', 'c', '5', '2', '666'),
('tty', 'c', '5', '0', '666'),
('zero', 'c', '1', '5', '666')]
for (dev, devtype, major, minor, perm) in devices:
devpath = os.path.join(self.rootdir, 'dev', dev)
cmd = '%s %s -m %s %s %s %s' % (self.config['mknod'],
devpath, perm, devtype, major, minor)
if not os.path.exists(devpath):
(retval, output) = self.do(cmd)
if retval != 0:
raise RootError, "could not mknod error was: %s" % output
# link fd to ../proc/self/fd
devpath = os.path.join(self.rootdir, 'dev/fd')
if not os.path.exists(devpath):
os.symlink('../proc/self/fd', devpath)
fd = 0
for item in ('stdin', 'stdout', 'stderr'):
devpath = os.path.join(self.rootdir, 'dev', item)
if not os.path.exists(devpath):
fdpath = os.path.join('../proc/self/fd', str(fd))
os.symlink(fdpath, devpath)
fd += 1
for item in [os.path.join(self.rootdir, 'etc', 'mtab'),
os.path.join(self.rootdir, 'etc', 'fstab'),
os.path.join(self.rootdir, 'var', 'log', 'yum.log')]:
fo = open(item, 'w')
fo.close()
# write in yum.conf into chroot
yumconf = os.path.join(self.rootdir, 'etc', 'yum.conf')
yumconf_fo = open(yumconf, 'w')
yumconf_content = self.config['yum.conf']
yumconf_fo.write(yumconf_content)
# files in /etc that need doing
filedict = self.config['files']
for key in filedict:
fn = '%s%s' % (self.rootdir, key)
fo = open(fn, 'w')
fo.write(filedict[key])
fo.close()
def _make_our_user(self):
# should check if the user exists first
# make the buildusers/groups
if not os.path.exists(self.rootdir + self.homedir):
if not os.path.exists(os.path.join(self.rootdir, 'usr/sbin/useradd')):
raise RootError, "Could not find useradd in chroot, maybe the install failed?"
cmd = '/usr/sbin/useradd -u %s -d %s %s' % (self.config['chrootuid'],
self.homedir, self.config['chrootuser'])
self.do_chroot(cmd, fatal = True)
def _build_dir_setup(self):
# purge the builddir, if it exists
bd_out = '%s%s' % (self.rootdir, self.builddir)
if os.path.exists(bd_out):
cmd = 'rm -rfv %s' % self.builddir
self.do_chroot(cmd, fatal=True)
# create dir structure
for subdir in ('RPMS', 'SRPMS', 'SOURCES', 'SPECS', 'BUILD', 'originals'):
cmd = "mkdir -p %s/%s" % (self.builddir, subdir)
self.do_chroot(cmd, fatal = True)
cmd = "chown %s.%s %s/%s" % (self.config['chrootuser'],
self.config['chrootgroup'], self.builddir, subdir)
self.do_chroot(cmd, fatal = True)
# rpmmacros default
macrofile_out = '%s%s/.rpmmacros' % (self.rootdir, self.homedir)
if not os.path.exists(macrofile_out):
rpmmacros = open(macrofile_out, 'w')
rpmmacros.write(self.config['macros'])
rpmmacros.close()
def _prep_build(self):
"""prep the chroot for building packages"""
self._make_our_user()
self._build_dir_setup()
self._mount() # check it again
# FIXME - do we need this still?
# create /boot/kernel.h with a warning
#self.do_chroot ("mkdir -p /boot", fatal = True)
#self.do_chroot ("echo '#ifndef __BOOT_KERNEL_H_' > /boot/kernel.h", fatal = True)
#self.do_chroot ("echo '#define __BOOT_KERNEL_H_' >> /boot/kernel.h", fatal = True)
#self.do_chroot ("echo '#error This is a kernel.h generated by mock, including this indicates a build error !' >> /boot/kernel.h", fatal = True)
#self.do_chroot ("echo '#endif /* __BOOT_KERNEL_H_ */' >> /boot/kernel.h", fatal = True)
def command_parse():
"""return options and args from parsing the command line"""
usage = """
usage: mock [options] /path/to/srpm
optional commands:
clean - clean out the specified chroot
init - initialize the chroot, do not build anything"""
parser = OptionParser(usage=usage, version=__VERSION__)
parser.add_option("-r", action="store", type="string", dest="chroot",
help="chroot name/config file name default: %default",
default='default')
parser.add_option("--no-clean", action ="store_true", dest="dirty",
help="do not clean chroot before building")
parser.add_option("--arch", action ="store", dest="arch",
default=None, help="target build arch")
parser.add_option("--debug", action ="store_true", dest="debug",
default=False, help="Output copious debugging information")
parser.add_option("--resultdir", action="store", type="string",
default=None, help="path for resulting files to be put")
parser.add_option("--statedir", action="store", type="string", default=None,
help="path for state file is written")
parser.add_option("--uniqueext", action="store", type="string", default=None,
help="Arbitrary, unique extension to append to buildroot directory name")
parser.add_option("--configdir", action="store", dest="configdir", default=None,
help="Change where config files are found")
parser.add_option("--quiet", action ="store_true", dest="quiet",
default=False, help="quiet down output")
return parser.parse_args()
def main():
# before we go on, make sure the user is a member of the 'mock' group.
member = False
for item in os.getgroups():
try:
grptup = grp.getgrgid(item)
except KeyError, e:
continue
if grptup[0] == 'mock':
member = True
if not member:
print "You need to be a member of the mock group for this to work"
sys.exit(1)
# and make sure they're not root
if os.geteuid() == 0:
error("Don't try to run mock as root!")
sys.exit(1)
# config path
config_path='/etc/mock'
# defaults
config_opts = {}
config_opts['basedir'] = '/var/lib/mock/' # root name is automatically added to this
config_opts['chroot'] = '/usr/sbin/mock-helper chroot'
config_opts['mount'] = '/usr/sbin/mock-helper mount'
config_opts['umount'] = '/usr/sbin/mock-helper umount'
config_opts['rm'] = '/usr/sbin/mock-helper rm'
config_opts['mknod'] = '/usr/sbin/mock-helper mknod'
config_opts['yum'] = '/usr/sbin/mock-helper yum'
config_opts['runuser'] = '/sbin/runuser'
config_opts['chroot_dep_package'] = 'buildsys-build'
config_opts['chrootuser'] = 'mockbuild'
config_opts['chrootgroup'] = 'mockbuild'
config_opts['chrootuid'] = 500
config_opts['chrootgid'] = 500
config_opts['chroothome'] = '/builddir'
config_opts['clean'] = True
config_opts['debug'] = False
config_opts['quiet'] = False
config_opts['target_arch'] = 'i386'
config_opts['files'] = {}
config_opts['yum.conf'] = ''
config_opts['macros'] = """
%%_topdir %s/build
%%_rpmfilename %%%%{NAME}-%%%%{VERSION}-%%%%{RELEASE}.%%%%{ARCH}.rpm
""" % config_opts['chroothome']
config_opts['files']['/etc/resolv.conf'] = "nameserver 192.168.1.1\n"
config_opts['files']['/etc/hosts'] = "127.0.0.1 localhost localhost.localdomain\n"
# cli option parsing
(options, args) = command_parse()
if len(args) < 1:
error("No srpm or command specified - nothing to do")
sys.exit(50)
if options.configdir:
config_path = options.configdir
# read in the config file by chroot name
if options.chroot.endswith('.cfg'):
cfg = '%s/%s' % (config_path, options.chroot)
else:
cfg = '%s/%s.cfg' % (config_path, options.chroot)
if os.path.exists(cfg):
execfile(cfg)
else:
error("Could not find config file %s for chroot %s" % (cfg, options.chroot))
sys.exit(1)
# do some other options and stuff
if options.arch:
config_opts['target_arch'] = options.arch
if options.dirty:
config_opts['clean'] = False
else:
config_opts['clean'] = True
config_opts['debug'] = options.debug
config_opts['quiet'] = options.quiet
if options.resultdir:
config_opts['resultdir'] = options.resultdir
if options.statedir:
config_opts['statedir'] = options.statedir
if options.uniqueext:
config_opts['unique-ext'] = options.uniqueext
# do whatever we're here to do
if args[0] == 'clean':
# unset a --no-clean
config_opts['clean'] = True
try:
my = None
my = Root(config_opts)
except Error, e:
print e
if my:
my.close()
sys.exit(100)
my.close()
print 'Finished cleaning root'
elif args[0] == 'init':
try:
my = None
my = Root(config_opts)
my.prep()
except Error, e:
print e
if my:
my.close()
sys.exit(100)
my.close()
print 'Finished initializing root'
elif args[0] == 'chroot':
config_opts['clean'] = config_opts['quiet'] = False
my= Root(config_opts)
my._mount()
my.do_chroot(' '.join(args[1:]), True)
my.close()
print 'Finished chroot command'
else:
if args[0] == 'rebuild':
if len(args) > 1:
srpm = args[1]
else:
error("No package specified to rebuild command.")
sys.exit(50)
else:
srpm = args[0]
ts = rpmUtils.transaction.initReadOnlyTransaction()
try:
hdr = rpmUtils.miscutils.hdrFromPackage(ts, srpm)
except rpmUtils.RpmUtilsError, e:
error("Specified srpm %s cannot be found/opened" % srpm)
sys.exit(50)
if hdr[rpm.RPMTAG_SOURCEPACKAGE] != 1:
error("Specified srpm isn't a srpm! Can't go on")
sys.exit(50)
try:
my = None # if Root() fails, my will be undefined so we force it to None
my = Root(config_opts)
os.umask(0022) # set a umask- protects from paranoid whackjobs with an 002 umask
my.prep()
my.build(srpm)
except Error, e:
error(e)
if my:
my.close()
sys.exit(e.resultcode)
my.close()
print "Results and/or logs in: %s" % my.resultdir
if __name__ == '__main__':
main()
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