702 lines
23 KiB
Python
702 lines
23 KiB
Python
#
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# __init__.py
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#
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# Copyright (C) 2010 Red Hat, Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# Red Hat Author(s): Martin Gracik <mgracik@redhat.com>
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# David Cantrell <dcantrell@redhat.com>
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#
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# set up logging
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import logging
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fh = logging.FileHandler(filename="pylorax.log", mode="w")
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fh.setLevel(logging.DEBUG)
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logging.getLogger("pylorax").addHandler(fh)
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sh = logging.StreamHandler()
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sh.setLevel(logging.INFO)
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logging.getLogger("").addHandler(sh)
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logger = logging.getLogger("pylorax")
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import sys
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import os
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import ConfigParser
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import tempfile
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import shutil
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import itertools
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import glob
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import math
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from collections import namedtuple
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from base import BaseLoraxClass
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import output
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import yum
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import yumhelper
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import ltmpl
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import constants
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from sysutils import *
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from installtree import LoraxInstallTree
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from outputtree import LoraxOutputTree
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from buildstamp import BuildStamp
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from treeinfo import TreeInfo
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from discinfo import DiscInfo
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ARCHMAPS = {
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"i386": {"base": "i386", "efi": "IA32", "is64": False},
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"i586": {"base": "i386", "efi": "IA32", "is64": False},
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"i686": {"base": "i386", "efi": "IA32", "is64": False},
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"x86_64": {"base": "x86_64", "efi": "X64", "is64": True},
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"ppc": {"base": "ppc", "efi": "", "is64": False},
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"ppc64": {"base": "ppc", "efi": "", "is64": True},
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"s390": {"base": "s390", "efi": "", "is64": False},
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"s390x": {"base": "s390x", "efi": "", "is64": True},
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"sparc": {"base": "sparc", "efi": "", "is64": False},
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"sparc64": {"base": "sparc", "efi": "", "is64": True},
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"ia64": {"base": "ia64", "efi": "IA64", "is64": True}
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}
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LIB32 = "lib"
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LIB64 = "lib64"
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# kernel types
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K_NORMAL = 0
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K_PAE = 1
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K_XEN = 1
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# XXX kernel tuple
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Kernel = namedtuple("Kernel", "fname fpath version type")
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class Lorax(BaseLoraxClass):
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def __init__(self):
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BaseLoraxClass.__init__(self)
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self._configured = False
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def configure(self, conf_file="/etc/lorax/lorax.conf"):
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self.conf = ConfigParser.SafeConfigParser()
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# set defaults
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self.conf.add_section("lorax")
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self.conf.set("lorax", "debug", "1")
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self.conf.set("lorax", "sharedir", "/usr/share/lorax")
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self.conf.add_section("output")
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self.conf.set("output", "colors", "1")
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self.conf.set("output", "encoding", "utf-8")
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self.conf.set("output", "ignorelist", "/usr/share/lorax/ignorelist")
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self.conf.add_section("templates")
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self.conf.set("templates", "ramdisk", "ramdisk.ltmpl")
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# read the config file
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if os.path.isfile(conf_file):
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self.conf.read(conf_file)
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# set up the output
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debug = self.conf.getboolean("lorax", "debug")
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output_level = output.DEBUG if debug else output.INFO
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colors = self.conf.getboolean("output", "colors")
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encoding = self.conf.get("output", "encoding")
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self.output.basic_config(output_level=output_level,
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colors=colors, encoding=encoding)
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ignorelist = self.conf.get("output", "ignorelist")
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if os.path.isfile(ignorelist):
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with open(ignorelist, "r") as fobj:
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for line in fobj:
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line = line.strip()
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if line and not line.startswith("#"):
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self.output.ignore(line)
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# XXX cron does not have sbin in PATH,
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# so we have to add it ourselves
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os.environ["PATH"] = "{0}:/sbin:/usr/sbin".format(os.environ["PATH"])
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self._configured = True
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def run(self, yb, product, version, release, variant="", bugurl="",
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is_beta=False, workdir=None, outputdir=None):
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# XXX
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assert self._configured
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# do we have root privileges?
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logger.info("checking for root privileges")
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if not os.geteuid() == 0:
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logger.critical("no root privileges")
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sys.exit(1)
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# XXX do we have all lorax required commands?
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self.lcmds = constants.LoraxRequiredCommands()
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missing = self.lcmds.get_missing()
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if missing:
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logger.critical("missing required command: {0}".format(missing))
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sys.exit(1)
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# do we have a proper yum base object?
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logger.info("checking yum base object")
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if not isinstance(yb, yum.YumBase):
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logger.critical("no yum base object")
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sys.exit(1)
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# set up yum helper
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logger.info("setting up yum helper")
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self.yum = yumhelper.LoraxYumHelper(yb)
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logger.debug("using install root: {0}".format(self.yum.installroot))
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# set up build architecture
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logger.info("setting up build architecture")
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self.buildarch = self.get_buildarch()
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logger.debug("set buildarch = {0.buildarch}".format(self))
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archmap = ARCHMAPS.get(self.buildarch)
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# XXX
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assert archmap is not None
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self.basearch = archmap.get("base")
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self.efiarch = archmap.get("efi")
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self.libdir = LIB64 if archmap.get("is64") else LIB32
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logger.debug("set basearch = {0.basearch}".format(self))
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logger.debug("set efiarch = {0.efiarch}".format(self))
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logger.debug("set libdir = {0.libdir}".format(self))
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# set up install tree
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logger.info("setting up install tree")
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self.installtree = LoraxInstallTree(self.yum, self.basearch,
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self.libdir)
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# set up required build parameters
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logger.info("setting up build parameters")
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self.product = product
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self.version = version
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self.release = release
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logger.debug("set product = {0.product}".format(self))
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logger.debug("set version = {0.version}".format(self))
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logger.debug("set release = {0.release}".format(self))
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# set up optional build parameters
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self.variant = variant
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self.bugurl = bugurl
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self.is_beta = is_beta
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logger.debug("set variant = {0.variant}".format(self))
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logger.debug("set bugurl = {0.bugurl}".format(self))
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logger.debug("set is_beta = {0.is_beta}".format(self))
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# XXX set up work directory
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logger.info("setting up work directory")
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self.workdir = workdir or tempfile.mkdtemp(prefix="pylorax.work.")
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if not os.path.isdir(self.workdir):
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os.makedirs(self.workdir)
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logger.debug("using work directory {0.workdir}".format(self))
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# parse the template
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logger.info("parsing the template")
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tfile = joinpaths(self.conf.get("lorax", "sharedir"),
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self.conf.get("templates", "ramdisk"))
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vars = { "basearch": self.basearch,
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"libdir" : self.libdir,
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"product": self.product.lower() }
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template = ltmpl.LoraxTemplate()
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template = template.parse(tfile, vars)
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# get list of required packages
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logger.info("getting list of required packages")
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required = [f[1:] for f in template if f[0] == "install"]
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required = itertools.chain.from_iterable(required)
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# install packages
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for package in required:
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self.installtree.yum.install(package)
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self.installtree.yum.process_transaction()
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# write .buildstamp
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buildstamp = BuildStamp(self.workdir, self.product, self.version,
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self.bugurl, self.is_beta, self.buildarch)
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buildstamp.write()
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shutil.copy2(buildstamp.path, self.installtree.root)
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# XXX save list of installed packages
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with open(joinpaths(self.workdir, "packages"), "w") as fobj:
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for pkgname in self.installtree.yum.installed_packages:
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fobj.write("{0}\n".format(pkgname))
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# remove locales
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logger.info("removing locales")
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self.installtree.remove_locales()
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# create keymaps
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logger.info("creating keymaps")
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self.installtree.create_keymaps()
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# create screenfont
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logger.info("creating screenfont")
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self.installtree.create_screenfont()
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# move stubs
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logger.info("moving stubs")
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self.installtree.move_stubs()
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# get the list of required modules
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logger.info("getting list of required modules")
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modules = [f[1:] for f in template if f[0] == "module"]
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modules = list(itertools.chain.from_iterable(modules))
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self.installtree.move_modules()
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for kernel in self.installtree.kernels:
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logger.info("cleaning up kernel modules")
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self.installtree.cleanup_kernel_modules(modules, kernel)
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logger.info("compressing modules")
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self.installtree.compress_modules(kernel)
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logger.info("running depmod")
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self.installtree.run_depmod(kernel)
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# create gconf
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logger.info("creating gconf files")
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self.installtree.create_gconf()
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# move repos
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logger.info("moving anaconda repos")
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self.installtree.move_repos()
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# create depmod conf
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logger.info("creating depmod.conf")
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self.installtree.create_depmod_conf()
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# misc tree modifications
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self.installtree.misc_tree_modifications()
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# get config files
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config_dir = joinpaths(self.conf.get("lorax", "sharedir"),
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"config_files")
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self.installtree.get_config_files(config_dir)
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self.installtree.setup_sshd(config_dir)
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# get anaconda portions
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self.installtree.get_anaconda_portions()
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# set up output tree
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logger.info("setting up output tree")
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self.outputdir = outputdir or tempfile.mkdtemp(prefix="pylorax.out.")
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if not os.path.isdir(self.outputdir):
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os.makedirs(self.outputdir)
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logger.debug("using output directory {0.outputdir}".format(self))
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self.outputtree = LoraxOutputTree(self.outputdir, self.installtree,
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self.product, self.version)
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self.outputtree.prepare()
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self.outputtree.get_isolinux()
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self.outputtree.get_msg_files()
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self.outputtree.get_grub_conf()
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# write .discinfo
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discinfo = DiscInfo(self.workdir, self.release, self.basearch)
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discinfo.write()
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shutil.copy2(discinfo.path, self.outputtree.root)
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# XXX
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grubefi = joinpaths(self.installtree.root, "boot/efi/EFI/redhat",
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"grub.efi")
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if os.path.isfile(grubefi):
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shutil.move(grubefi, self.workdir)
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grubefi = joinpaths(self.workdir, os.path.basename(grubefi))
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else:
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grubefi = None
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splash = joinpaths(self.installtree.root, "boot/grub/",
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"splash.xpm.gz")
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shutil.move(splash, self.workdir)
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splash = joinpaths(self.workdir, os.path.basename(splash))
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# move kernels to workdir
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kernels = []
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for kernel in self.installtree.kernels:
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type = ""
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if kernel.type == K_PAE:
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type = "-PAE"
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elif kernel.type == K_XEN:
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type = "-XEN"
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kname = "vmlinuz{0}".format(type)
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shutil.move(kernel.fpath, joinpaths(self.workdir, kname))
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kernels.append(Kernel(kname,
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joinpaths(self.workdir, kname),
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kernel.version,
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kernel.type))
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self.outputtree.get_kernels(kernels[:])
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# get list of not required packages
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logger.info("getting list of not required packages")
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remove = [f[1:] for f in template if f[0] == "remove"]
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rdb = {}
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order = []
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for item in remove:
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package = None
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pattern = None
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if item[0] == "--path":
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# remove files
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package = None
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pattern = item[1]
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else:
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# remove package
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package = item[0]
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try:
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pattern = item[1]
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except IndexError:
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pattern = None
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if package not in rdb:
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rdb[package] = [pattern]
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order.append(package)
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elif pattern not in rdb[package]:
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rdb[package].append(pattern)
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for package in order:
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pattern_list = rdb[package]
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logger.debug("{0}\t{1}".format(package, pattern_list))
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self.installtree.yum.remove(package, pattern_list)
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# cleanup python files
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logger.info("cleaning up python files")
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self.installtree.cleanup_python_files()
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# compress install tree
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InitRD = namedtuple("InitRD", "fname fpath")
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initrd = InitRD("initrd.img", joinpaths(self.workdir, "initrd.img"))
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logger.info("compressing install tree")
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ok, elapsed = self.installtree.compress(initrd)
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if not ok:
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logger.error("error while compressing install tree")
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else:
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logger.info("took {0:.2f} seconds".format(elapsed))
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# copy initrd to pxebootdir
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shutil.copy2(initrd.fpath, self.outputtree.pxebootdir)
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# create initrd hard link in isolinuxdir
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source = joinpaths(self.outputtree.pxebootdir, initrd.fname)
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link_name = joinpaths(self.outputtree.isolinuxdir, initrd.fname)
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os.link(source, link_name)
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# create efi images
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efiboot = None
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if grubefi:
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kernel = kernels[0]
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# create efiboot image with kernel
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logger.info("creating efiboot image with kernel")
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efiboot = self.create_efiboot(kernel, initrd, grubefi, splash,
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include_kernel=True)
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if efiboot is None:
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logger.critical("unable to create efiboot image")
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sys.exit(1)
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# create efidisk image
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logger.info("creating efidisk image")
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efidisk = self.create_efidisk(efiboot)
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if efidisk is None:
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logger.critical("unable to create efidisk image")
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sys.exit(1)
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# remove efiboot image with kernel
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os.unlink(efiboot)
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# create efiboot image without kernel
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logger.info("creating efiboot image without kernel")
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efiboot = self.create_efiboot(kernel, initrd, grubefi, splash,
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include_kernel=False)
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if efiboot is None:
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logger.critical("unable to create efiboot image")
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sys.exit(1)
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# XXX copy efiboot and efidisk to imgdir
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shutil.copy2(efiboot, self.outputtree.imgdir)
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shutil.copy2(efidisk, self.outputtree.imgdir)
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# create boot iso
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logger.info("creating boot iso")
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bootiso = self.create_bootiso(self.outputtree, efiboot)
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if bootiso is None:
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logger.critical("unable to create boot iso")
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sys.exit(1)
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shutil.move(bootiso, self.outputtree.imgdir)
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# write .treeinfo
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treeinfo = TreeInfo(self.workdir, self.product, self.version,
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self.variant, self.basearch)
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# add the boot.iso
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section = "general"
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data = {"boot.iso": "images/{0}".format(os.path.basename(bootiso))}
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treeinfo.add_section(section, data)
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treeinfo.write()
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shutil.copy2(treeinfo.path, self.outputtree.root)
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def get_buildarch(self):
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# get architecture of the available anaconda package
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installed, available = self.yum.search("anaconda")
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if available:
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anaconda = available.pop(0)
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# src is not a real arch
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if anaconda.arch == "src":
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anaconda = available.pop(0)
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buildarch = anaconda.arch
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else:
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# fallback to the system architecture
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logger.warning("using system architecture")
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buildarch = os.uname()[4]
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return buildarch
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def create_efiboot(self, kernel, initrd, grubefi, splash,
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include_kernel=True):
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# create the efi tree directory
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efitree = tempfile.mkdtemp(prefix="efitree.", dir=self.workdir)
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# copy kernel and initrd files to efi tree directory
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if include_kernel:
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shutil.copy2(kernel.fpath, efitree)
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shutil.copy2(initrd.fpath, efitree)
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efikernelpath = "/EFI/BOOT/{0}".format(kernel.fname)
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efiinitrdpath = "/EFI/BOOT/{0}".format(initrd.fname)
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else:
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efikernelpath = "/images/pxeboot/{0}".format(kernel.fname)
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efiinitrdpath = "/images/pxeboot/{0}".format(initrd.fname)
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efisplashpath = "/EFI/BOOT/splash.xpm.gz"
|
|
|
|
# copy conf files to efi tree directory
|
|
src = joinpaths(self.installtree.root, "usr/share/anaconda/boot",
|
|
"*.conf")
|
|
|
|
for fname in glob.glob(src):
|
|
shutil.copy2(fname, efitree)
|
|
|
|
# edit the grub.conf file
|
|
grubconf = joinpaths(efitree, "grub.conf")
|
|
replace(grubconf, "@PRODUCT@", self.product)
|
|
replace(grubconf, "@VERSION@", self.version)
|
|
replace(grubconf, "@KERNELPATH@", efikernelpath)
|
|
replace(grubconf, "@INITRDPATH@", efiinitrdpath)
|
|
replace(grubconf, "@SPLASHPATH@", efisplashpath)
|
|
|
|
if self.efiarch == "IA32":
|
|
shutil.copy2(grubconf, joinpaths(efitree, "BOOT.conf"))
|
|
|
|
dst = joinpaths(efitree, "BOOT{0}.conf".format(self.efiarch))
|
|
shutil.move(grubconf, dst)
|
|
|
|
# copy grub.efi
|
|
if self.efiarch == "IA32":
|
|
shutil.copy2(grubefi, joinpaths(efitree, "BOOT.efi"))
|
|
|
|
dst = joinpaths(efitree, "BOOT{0}.efi".format(self.efiarch))
|
|
shutil.copy2(grubefi, dst)
|
|
|
|
# copy splash.xpm.gz
|
|
shutil.copy2(splash, efitree)
|
|
|
|
efiboot = joinpaths(self.workdir, "efiboot.img")
|
|
if os.path.isfile(efiboot):
|
|
os.unlink(efiboot)
|
|
|
|
# XXX calculate the size of the efi tree directory
|
|
overhead = 512 * 1024
|
|
|
|
sizeinbytes = overhead
|
|
for root, dnames, fnames in os.walk(efitree):
|
|
for fname in fnames:
|
|
fpath = joinpaths(root, fname)
|
|
fsize = os.path.getsize(fpath)
|
|
|
|
# round to multiplications of 4096
|
|
fsize = math.ceil(fsize / 4096.0) * 4096
|
|
sizeinbytes += fsize
|
|
|
|
# mkdosfs needs the size in blocks of 1024 bytes
|
|
size = int(math.ceil(sizeinbytes / 1024.0))
|
|
|
|
cmd = [self.lcmds.MKDOSFS, "-n", "ANACONDA", "-C", efiboot, str(size)]
|
|
logger.debug(cmd)
|
|
p = subprocess.Popen(cmd, stdout=subprocess.PIPE)
|
|
p.wait()
|
|
|
|
# mount the efiboot image
|
|
efibootdir = tempfile.mkdtemp(prefix="efiboot.", dir=self.workdir)
|
|
|
|
cmd = [self.lcmds.MOUNT, "-o", "loop,shortname=winnt,umask=0777",
|
|
"-t", "vfat", efiboot, efibootdir]
|
|
logger.debug(cmd)
|
|
p = subprocess.Popen(cmd, stdout=subprocess.PIPE)
|
|
p.wait()
|
|
|
|
# copy the files to the efiboot image
|
|
dst = joinpaths(efibootdir, "EFI/BOOT")
|
|
os.makedirs(dst)
|
|
|
|
for fname in os.listdir(efitree):
|
|
fpath = joinpaths(efitree, fname)
|
|
shutil.copy2(fpath, dst)
|
|
|
|
if not include_kernel:
|
|
shutil.copy2(fpath, self.outputtree.efibootdir)
|
|
|
|
# unmount the efiboot image
|
|
cmd = [self.lcmds.UMOUNT, efibootdir]
|
|
logger.debug(cmd)
|
|
p = subprocess.Popen(cmd, stdout=subprocess.PIPE)
|
|
p.wait()
|
|
|
|
# remove the work directories
|
|
shutil.rmtree(efibootdir)
|
|
#shutil.rmtree(efitree)
|
|
|
|
return efiboot
|
|
|
|
def create_efidisk(self, efiboot):
|
|
efidisk = joinpaths(self.workdir, "efidisk.img")
|
|
if os.path.isfile(efidisk):
|
|
os.unlink(efidisk)
|
|
|
|
partsize = os.path.getsize(efiboot)
|
|
disksize = 17408 + partsize + 17408
|
|
disksize = disksize + (disksize % 512)
|
|
|
|
# create efidisk file
|
|
with open(efidisk, "wb") as fobj:
|
|
fobj.truncate(disksize)
|
|
|
|
# create loop device
|
|
loopdev = create_loop_dev(efidisk)
|
|
|
|
if not loopdev:
|
|
os.unlink(efidisk)
|
|
return None
|
|
|
|
# create dm device
|
|
dmdev = create_dm_dev("efiboot", disksize / 512, loopdev)
|
|
|
|
if not dmdev:
|
|
remove_loop_dev(loopdev)
|
|
os.unlink(efidisk)
|
|
return None
|
|
|
|
# create partition on dm device
|
|
cmd = [self.lcmds.PARTED, "--script", dmdev, "mklabel", "gpt", "unit",
|
|
"b", "mkpart", '\"EFI System Partition\"', "fat32", "17408",
|
|
str(partsize + 17408), "set", "1", "boot", "on"]
|
|
logger.debug(cmd)
|
|
|
|
p = subprocess.Popen(cmd, stdout=subprocess.PIPE)
|
|
rc = p.wait()
|
|
|
|
if not rc == 0:
|
|
remove_dm_dev(dmdev)
|
|
remove_loop_dev(loopdev)
|
|
os.unlink(efidisk)
|
|
return None
|
|
|
|
with open(efiboot, "rb") as f_from:
|
|
with open("{0}p1".format(dmdev), "wb") as f_to:
|
|
efidata = f_from.read(1024)
|
|
while efidata:
|
|
f_to.write(efidata)
|
|
efidata = f_from.read(1024)
|
|
|
|
remove_dm_dev("{0}p1".format(dmdev))
|
|
remove_dm_dev(dmdev)
|
|
remove_loop_dev(loopdev)
|
|
|
|
return efidisk
|
|
|
|
def create_bootiso(self, outputtree, efiboot=None):
|
|
|
|
bootiso = joinpaths(self.workdir, "boot.iso")
|
|
if os.path.isfile(bootiso):
|
|
os.unlink(bootiso)
|
|
|
|
if efiboot is not None:
|
|
efiargs = ["-eltorito-alt-boot", "-e", "images/efiboot.img",
|
|
"-no-emul-boot"]
|
|
efigraft = ["EFI/BOOT={0}".format(outputtree.efibootdir)]
|
|
else:
|
|
efiargs = []
|
|
efigraft = []
|
|
|
|
cmd = [self.lcmds.MKISOFS, "-o", bootiso,
|
|
"-b", "isolinux/isolinux.bin", "-c", "isolinux/boot.cat",
|
|
"-no-emul-boot", "-boot-load-size", "4",
|
|
"-boot-info-table"] + efiargs + ["-R", "-J", "-V", self.product,
|
|
"-T", "-graft-points",
|
|
"isolinux={0}".format(outputtree.isolinuxdir),
|
|
"images={0}".format(outputtree.imgdir)] + efigraft
|
|
logger.debug(cmd)
|
|
p = subprocess.Popen(cmd, stdout=subprocess.PIPE)
|
|
rc = p.wait()
|
|
|
|
if not rc == 0:
|
|
return None
|
|
|
|
# create hybrid iso
|
|
cmd = [self.lcmds.ISOHYBRID, bootiso]
|
|
p = subprocess.Popen(cmd, stdout=subprocess.PIPE)
|
|
rc = p.wait()
|
|
|
|
# implant iso md5
|
|
cmd = [self.lcmds.IMPLANTISOMD5, bootiso]
|
|
p = subprocess.Popen(cmd, stdout=subprocess.PIPE)
|
|
rc = p.wait()
|
|
|
|
return bootiso
|