wic: Add mic w/pykickstart

This is the starting point for the implemention described in [YOCTO
3847] which came to the conclusion that it would make sense to use
kickstart syntax to implement image creation in OpenEmbedded.  I
subsequently realized that there was an existing tool that already
implemented image creation using kickstart syntax, the Tizen/Meego mic
tool.  As such, it made sense to use that as a starting point - this
commit essentially just copies the relevant Python code from the MIC
tool to the scripts/lib dir, where it can be accessed by the
previously created wic tool.

Most of this will be removed or renamed by later commits, since we're
initially focusing on partitioning only.  Care should be taken so that
we can easily add back any additional functionality should we decide
later to expand the tool, though (we may also want to contribute our
local changes to the mic tool to the Tizen project if it makes sense,
and therefore should avoid gratuitous changes to the original code if
possible).

Added the /mic subdir from Tizen mic repo as a starting point:

 git clone git://review.tizen.org/tools/mic.git

 For reference, the top commit:

 commit 20164175ddc234a17b8a12c33d04b012347b1530
 Author: Gui Chen <gui.chen@intel.com>
 Date:   Sun Jun 30 22:32:16 2013 -0400

    bump up to 0.19.2

Also added the /plugins subdir, moved to under the /mic subdir (to
match the default plugin_dir location in mic.conf.in, which was
renamed to yocto-image.conf (moved and renamed by later patches) and
put into /scripts.

Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 702 insertions, 0 deletions

diff --git a/scripts/lib/mic/3rdparty/pykickstart/parser.py b/scripts/lib/mic/3rdparty/pykickstart/parser.py
new file mode 100644
index 0000000000..840a448673
--- /dev/null
+++ b/scripts/lib/mic/3rdparty/pykickstart/parser.py
@@ -0,0 +1,702 @@
+#
+# parser.py:  Kickstart file parser.
+#
+# Chris Lumens <clumens@redhat.com>
+#
+# Copyright 2005, 2006, 2007, 2008, 2011 Red Hat, Inc.
+#
+# This copyrighted material is made available to anyone wishing to use, modify,
+# copy, or redistribute it subject to the terms and conditions of the GNU
+# General Public License v.2.  This program is distributed in the hope that it
+# will be useful, but WITHOUT ANY WARRANTY expressed or implied, including the
+# implied warranties 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., 51
+# Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  Any Red Hat
+# trademarks that are incorporated in the source code or documentation are not
+# subject to the GNU General Public License and may only be used or replicated
+# with the express permission of Red Hat, Inc. 
+#
+"""
+Main kickstart file processing module.
+
+This module exports several important classes:
+
+    Script - Representation of a single %pre, %post, or %traceback script.
+
+    Packages - Representation of the %packages section.
+
+    KickstartParser - The kickstart file parser state machine.
+"""
+
+from collections import Iterator
+import os
+import shlex
+import sys
+import tempfile
+from copy import copy
+from optparse import *
+from urlgrabber import urlread
+import urlgrabber.grabber as grabber
+
+import constants
+from errors import KickstartError, KickstartParseError, KickstartValueError, formatErrorMsg
+from ko import KickstartObject
+from sections import *
+import version
+
+import gettext
+_ = lambda x: gettext.ldgettext("pykickstart", x)
+
+STATE_END = "end"
+STATE_COMMANDS = "commands"
+
+ver = version.DEVEL
+
+def _preprocessStateMachine (lineIter):
+    l = None
+    lineno = 0
+
+    # Now open an output kickstart file that we are going to write to one
+    # line at a time.
+    (outF, outName) = tempfile.mkstemp("-ks.cfg", "", "/tmp")
+
+    while True:
+        try:
+            l = lineIter.next()
+        except StopIteration:
+            break
+
+        # At the end of the file?
+        if l == "":
+            break
+
+        lineno += 1
+        url = None
+
+        ll = l.strip()
+        if not ll.startswith("%ksappend"):
+            os.write(outF, l)
+            continue
+
+        # Try to pull down the remote file.
+        try:
+            ksurl = ll.split(' ')[1]
+        except:
+            raise KickstartParseError, formatErrorMsg(lineno, msg=_("Illegal url for %%ksappend: %s") % ll)
+
+        try:
+            url = grabber.urlopen(ksurl)
+        except grabber.URLGrabError, e:
+            raise KickstartError, formatErrorMsg(lineno, msg=_("Unable to open %%ksappend file: %s") % e.strerror)
+        else:
+            # Sanity check result.  Sometimes FTP doesn't catch a file
+            # is missing.
+            try:
+                if url.size < 1:
+                    raise KickstartError, formatErrorMsg(lineno, msg=_("Unable to open %%ksappend file"))
+            except:
+                raise KickstartError, formatErrorMsg(lineno, msg=_("Unable to open %%ksappend file"))
+
+        # If that worked, write the remote file to the output kickstart
+        # file in one burst.  Then close everything up to get ready to
+        # read ahead in the input file.  This allows multiple %ksappend
+        # lines to exist.
+        if url is not None:
+            os.write(outF, url.read())
+            url.close()
+
+    # All done - close the temp file and return its location.
+    os.close(outF)
+    return outName
+
+def preprocessFromString (s):
+    """Preprocess the kickstart file, provided as the string str.  This
+        method is currently only useful for handling %ksappend lines,
+        which need to be fetched before the real kickstart parser can be
+        run.  Returns the location of the complete kickstart file.
+    """
+    i = iter(s.splitlines(True) + [""])
+    rc = _preprocessStateMachine (i.next)
+    return rc
+
+def preprocessKickstart (f):
+    """Preprocess the kickstart file, given by the filename file.  This
+        method is currently only useful for handling %ksappend lines,
+        which need to be fetched before the real kickstart parser can be
+        run.  Returns the location of the complete kickstart file.
+    """
+    try:
+        fh = urlopen(f)
+    except grabber.URLGrabError, e:
+        raise KickstartError, formatErrorMsg(0, msg=_("Unable to open input kickstart file: %s") % e.strerror)
+
+    rc = _preprocessStateMachine (iter(fh.readlines()))
+    fh.close()
+    return rc
+
+class PutBackIterator(Iterator):
+    def __init__(self, iterable):
+        self._iterable = iter(iterable)
+        self._buf = None
+
+    def __iter__(self):
+        return self
+
+    def put(self, s):
+        self._buf = s
+
+    def next(self):
+        if self._buf:
+            retval = self._buf
+            self._buf = None
+            return retval
+        else:
+            return self._iterable.next()
+
+###
+### SCRIPT HANDLING
+###
+class Script(KickstartObject):
+    """A class representing a single kickstart script.  If functionality beyond
+       just a data representation is needed (for example, a run method in
+       anaconda), Script may be subclassed.  Although a run method is not
+       provided, most of the attributes of Script have to do with running the
+       script.  Instances of Script are held in a list by the Version object.
+    """
+    def __init__(self, script, *args , **kwargs):
+        """Create a new Script instance.  Instance attributes:
+
+           errorOnFail -- If execution of the script fails, should anaconda
+                          stop, display an error, and then reboot without
+                          running any other scripts?
+           inChroot    -- Does the script execute in anaconda's chroot
+                          environment or not?
+           interp      -- The program that should be used to interpret this
+                          script.
+           lineno      -- The line number this script starts on.
+           logfile     -- Where all messages from the script should be logged.
+           script      -- A string containing all the lines of the script.
+           type        -- The type of the script, which can be KS_SCRIPT_* from
+                          pykickstart.constants.
+        """
+        KickstartObject.__init__(self, *args, **kwargs)
+        self.script = "".join(script)
+
+        self.interp = kwargs.get("interp", "/bin/sh")
+        self.inChroot = kwargs.get("inChroot", False)
+        self.lineno = kwargs.get("lineno", None)
+        self.logfile = kwargs.get("logfile", None)
+        self.errorOnFail = kwargs.get("errorOnFail", False)
+        self.type = kwargs.get("type", constants.KS_SCRIPT_PRE)
+
+    def __str__(self):
+        """Return a string formatted for output to a kickstart file."""
+        retval = ""
+
+        if self.type == constants.KS_SCRIPT_PRE:
+            retval += '\n%pre'
+        elif self.type == constants.KS_SCRIPT_POST:
+            retval += '\n%post'
+        elif self.type == constants.KS_SCRIPT_TRACEBACK:
+            retval += '\n%traceback'
+
+        if self.interp != "/bin/sh" and self.interp != "":
+            retval += " --interpreter=%s" % self.interp
+        if self.type == constants.KS_SCRIPT_POST and not self.inChroot:
+            retval += " --nochroot"
+        if self.logfile != None:
+            retval += " --logfile %s" % self.logfile
+        if self.errorOnFail:
+            retval += " --erroronfail"
+
+        if self.script.endswith("\n"):
+            if ver >= version.F8:
+                return retval + "\n%s%%end\n" % self.script
+            else:
+                return retval + "\n%s\n" % self.script
+        else:
+            if ver >= version.F8:
+                return retval + "\n%s\n%%end\n" % self.script
+            else:
+                return retval + "\n%s\n" % self.script
+
+
+##
+## PACKAGE HANDLING
+##
+class Group:
+    """A class representing a single group in the %packages section."""
+    def __init__(self, name="", include=constants.GROUP_DEFAULT):
+        """Create a new Group instance.  Instance attributes:
+
+           name    -- The group's identifier
+           include -- The level of how much of the group should be included.
+                      Values can be GROUP_* from pykickstart.constants.
+        """
+        self.name = name
+        self.include = include
+
+    def __str__(self):
+        """Return a string formatted for output to a kickstart file."""
+        if self.include == constants.GROUP_REQUIRED:
+            return "@%s --nodefaults" % self.name
+        elif self.include == constants.GROUP_ALL:
+            return "@%s --optional" % self.name
+        else:
+            return "@%s" % self.name
+
+    def __cmp__(self, other):
+        if self.name < other.name:
+            return -1
+        elif self.name > other.name:
+            return 1
+        return 0
+
+class Packages(KickstartObject):
+    """A class representing the %packages section of the kickstart file."""
+    def __init__(self, *args, **kwargs):
+        """Create a new Packages instance.  Instance attributes:
+
+           addBase       -- Should the Base group be installed even if it is
+                            not specified?
+           default       -- Should the default package set be selected?
+           excludedList  -- A list of all the packages marked for exclusion in
+                            the %packages section, without the leading minus
+                            symbol.
+           excludeDocs   -- Should documentation in each package be excluded?
+           groupList     -- A list of Group objects representing all the groups
+                            specified in the %packages section.  Names will be
+                            stripped of the leading @ symbol.
+           excludedGroupList -- A list of Group objects representing all the
+                                groups specified for removal in the %packages
+                                section.  Names will be stripped of the leading
+                                -@ symbols.
+           handleMissing -- If unknown packages are specified in the %packages
+                            section, should it be ignored or not?  Values can
+                            be KS_MISSING_* from pykickstart.constants.
+           packageList   -- A list of all the packages specified in the
+                            %packages section.
+           instLangs     -- A list of languages to install.
+        """
+        KickstartObject.__init__(self, *args, **kwargs)
+
+        self.addBase = True
+        self.default = False
+        self.excludedList = []
+        self.excludedGroupList = []
+        self.excludeDocs = False
+        self.groupList = []
+        self.handleMissing = constants.KS_MISSING_PROMPT
+        self.packageList = []
+        self.instLangs = None
+
+    def __str__(self):
+        """Return a string formatted for output to a kickstart file."""
+        pkgs = ""
+
+        if not self.default:
+            grps = self.groupList
+            grps.sort()
+            for grp in grps:
+                pkgs += "%s\n" % grp.__str__()
+
+            p = self.packageList
+            p.sort()
+            for pkg in p:
+                pkgs += "%s\n" % pkg
+
+            grps = self.excludedGroupList
+            grps.sort()
+            for grp in grps:
+                pkgs += "-%s\n" % grp.__str__()
+
+            p = self.excludedList
+            p.sort()
+            for pkg in p:
+                pkgs += "-%s\n" % pkg
+
+            if pkgs == "":
+                return ""
+
+        retval = "\n%packages"
+
+        if self.default:
+            retval += " --default"
+        if self.excludeDocs:
+            retval += " --excludedocs"
+        if not self.addBase:
+            retval += " --nobase"
+        if self.handleMissing == constants.KS_MISSING_IGNORE:
+            retval += " --ignoremissing"
+        if self.instLangs:
+            retval += " --instLangs=%s" % self.instLangs
+
+        if ver >= version.F8:
+            return retval + "\n" + pkgs + "\n%end\n"
+        else:
+            return retval + "\n" + pkgs + "\n"
+
+    def _processGroup (self, line):
+        op = OptionParser()
+        op.add_option("--nodefaults", action="store_true", default=False)
+        op.add_option("--optional", action="store_true", default=False)
+
+        (opts, extra) = op.parse_args(args=line.split())
+
+        if opts.nodefaults and opts.optional:
+            raise KickstartValueError, _("Group cannot specify both --nodefaults and --optional")
+
+        # If the group name has spaces in it, we have to put it back together
+        # now.
+        grp = " ".join(extra)
+
+        if opts.nodefaults:
+            self.groupList.append(Group(name=grp, include=constants.GROUP_REQUIRED))
+        elif opts.optional:
+            self.groupList.append(Group(name=grp, include=constants.GROUP_ALL))
+        else:
+            self.groupList.append(Group(name=grp, include=constants.GROUP_DEFAULT))
+
+    def add (self, pkgList):
+        """Given a list of lines from the input file, strip off any leading
+           symbols and add the result to the appropriate list.
+        """
+        existingExcludedSet = set(self.excludedList)
+        existingPackageSet = set(self.packageList)
+        newExcludedSet = set()
+        newPackageSet = set()
+
+        excludedGroupList = []
+
+        for pkg in pkgList:
+            stripped = pkg.strip()
+
+            if stripped[0] == "@":
+                self._processGroup(stripped[1:])
+            elif stripped[0] == "-":
+                if stripped[1] == "@":
+                    excludedGroupList.append(Group(name=stripped[2:]))
+                else:
+                    newExcludedSet.add(stripped[1:])
+            else:
+                newPackageSet.add(stripped)
+
+        # Groups have to be excluded in two different ways (note: can't use
+        # sets here because we have to store objects):
+        excludedGroupNames = map(lambda g: g.name, excludedGroupList)
+
+        # First, an excluded group may be cancelling out a previously given
+        # one.  This is often the case when using %include.  So there we should
+        # just remove the group from the list.
+        self.groupList = filter(lambda g: g.name not in excludedGroupNames, self.groupList)
+
+        # Second, the package list could have included globs which are not
+        # processed by pykickstart.  In that case we need to preserve a list of
+        # excluded groups so whatever tool doing package/group installation can
+        # take appropriate action.
+        self.excludedGroupList.extend(excludedGroupList)
+
+        existingPackageSet = (existingPackageSet - newExcludedSet) | newPackageSet
+        existingExcludedSet = (existingExcludedSet - existingPackageSet) | newExcludedSet
+
+        self.packageList = list(existingPackageSet)
+        self.excludedList = list(existingExcludedSet)
+
+
+###
+### PARSER
+###
+class KickstartParser:
+    """The kickstart file parser class as represented by a basic state
+       machine.  To create a specialized parser, make a subclass and override
+       any of the methods you care about.  Methods that don't need to do
+       anything may just pass.  However, _stateMachine should never be
+       overridden.
+    """
+    def __init__ (self, handler, followIncludes=True, errorsAreFatal=True,
+                  missingIncludeIsFatal=True):
+        """Create a new KickstartParser instance.  Instance attributes:
+
+           errorsAreFatal        -- Should errors cause processing to halt, or
+                                    just print a message to the screen?  This
+                                    is most useful for writing syntax checkers
+                                    that may want to continue after an error is
+                                    encountered.
+           followIncludes        -- If %include is seen, should the included
+                                    file be checked as well or skipped?
+           handler               -- An instance of a BaseHandler subclass.  If
+                                    None, the input file will still be parsed
+                                    but no data will be saved and no commands
+                                    will be executed.
+           missingIncludeIsFatal -- Should missing include files be fatal, even
+                                    if errorsAreFatal is False?
+        """
+        self.errorsAreFatal = errorsAreFatal
+        self.followIncludes = followIncludes
+        self.handler = handler
+        self.currentdir = {}
+        self.missingIncludeIsFatal = missingIncludeIsFatal
+
+        self._state = STATE_COMMANDS
+        self._includeDepth = 0
+        self._line = ""
+
+        self.version = self.handler.version
+
+        global ver
+        ver = self.version
+
+        self._sections = {}
+        self.setupSections()
+
+    def _reset(self):
+        """Reset the internal variables of the state machine for a new kickstart file."""
+        self._state = STATE_COMMANDS
+        self._includeDepth = 0
+
+    def getSection(self, s):
+        """Return a reference to the requested section (s must start with '%'s),
+           or raise KeyError if not found.
+        """
+        return self._sections[s]
+
+    def handleCommand (self, lineno, args):
+        """Given the list of command and arguments, call the Version's
+           dispatcher method to handle the command.  Returns the command or
+           data object returned by the dispatcher.  This method may be
+           overridden in a subclass if necessary.
+        """
+        if self.handler:
+            self.handler.currentCmd = args[0]
+            self.handler.currentLine = self._line
+            retval = self.handler.dispatcher(args, lineno)
+
+            return retval
+
+    def registerSection(self, obj):
+        """Given an instance of a Section subclass, register the new section
+           with the parser.  Calling this method means the parser will
+           recognize your new section and dispatch into the given object to
+           handle it.
+        """
+        if not obj.sectionOpen:
+            raise TypeError, "no sectionOpen given for section %s" % obj
+
+        if not obj.sectionOpen.startswith("%"):
+            raise TypeError, "section %s tag does not start with a %%" % obj.sectionOpen
+
+        self._sections[obj.sectionOpen] = obj
+
+    def _finalize(self, obj):
+        """Called at the close of a kickstart section to take any required
+           actions.  Internally, this is used to add scripts once we have the
+           whole body read.
+        """
+        obj.finalize()
+        self._state = STATE_COMMANDS
+
+    def _handleSpecialComments(self, line):
+        """Kickstart recognizes a couple special comments."""
+        if self._state != STATE_COMMANDS:
+            return
+
+        # Save the platform for s-c-kickstart.
+        if line[:10] == "#platform=":
+            self.handler.platform = self._line[11:]
+
+    def _readSection(self, lineIter, lineno):
+        obj = self._sections[self._state]
+
+        while True:
+            try:
+                line = lineIter.next()
+                if line == "":
+                    # This section ends at the end of the file.
+                    if self.version >= version.F8:
+                        raise KickstartParseError, formatErrorMsg(lineno, msg=_("Section does not end with %%end."))
+
+                    self._finalize(obj)
+            except StopIteration:
+                break
+
+            lineno += 1
+
+            # Throw away blank lines and comments, unless the section wants all
+            # lines.
+            if self._isBlankOrComment(line) and not obj.allLines:
+                continue
+
+            if line.startswith("%"):
+                args = shlex.split(line)
+
+                if args and args[0] == "%end":
+                    # This is a properly terminated section.
+                    self._finalize(obj)
+                    break
+                elif args and args[0] == "%ksappend":
+                    continue
+                elif args and (self._validState(args[0]) or args[0] in ["%include", "%ksappend"]):
+                    # This is an unterminated section.
+                    if self.version >= version.F8:
+                        raise KickstartParseError, formatErrorMsg(lineno, msg=_("Section does not end with %%end."))
+
+                    # Finish up.  We do not process the header here because
+                    # kicking back out to STATE_COMMANDS will ensure that happens.
+                    lineIter.put(line)
+                    lineno -= 1
+                    self._finalize(obj)
+                    break
+            else:
+                # This is just a line within a section.  Pass it off to whatever
+                # section handles it.
+                obj.handleLine(line)
+
+        return lineno
+
+    def _validState(self, st):
+        """Is the given section tag one that has been registered with the parser?"""
+        return st in self._sections.keys()
+
+    def _tryFunc(self, fn):
+        """Call the provided function (which doesn't take any arguments) and
+           do the appropriate error handling.  If errorsAreFatal is False, this
+           function will just print the exception and keep going.
+        """
+        try:
+            fn()
+        except Exception, msg:
+            if self.errorsAreFatal:
+                raise
+            else:
+                print msg
+
+    def _isBlankOrComment(self, line):
+        return line.isspace() or line == "" or line.lstrip()[0] == '#'
+
+    def _stateMachine(self, lineIter):
+        # For error reporting.
+        lineno = 0
+
+        while True:
+            # Get the next line out of the file, quitting if this is the last line.
+            try:
+                self._line = lineIter.next()
+                if self._line == "":
+                    break
+            except StopIteration:
+                break
+
+            lineno += 1
+
+            # Eliminate blank lines, whitespace-only lines, and comments.
+            if self._isBlankOrComment(self._line):
+                self._handleSpecialComments(self._line)
+                continue
+
+            # Remove any end-of-line comments.
+            sanitized = self._line.split("#")[0]
+
+            # Then split the line.
+            args = shlex.split(sanitized.rstrip())
+
+            if args[0] == "%include":
+                # This case comes up primarily in ksvalidator.
+                if not self.followIncludes:
+                    continue
+
+                if len(args) == 1 or not args[1]:
+                    raise KickstartParseError, formatErrorMsg(lineno)
+
+                self._includeDepth += 1
+
+                try:
+                    self.readKickstart(args[1], reset=False)
+                except KickstartError:
+                    # Handle the include file being provided over the
+                    # network in a %pre script.  This case comes up in the
+                    # early parsing in anaconda.
+                    if self.missingIncludeIsFatal:
+                        raise
+
+                self._includeDepth -= 1
+                continue
+
+            # Now on to the main event.
+            if self._state == STATE_COMMANDS:
+                if args[0] == "%ksappend":
+                    # This is handled by the preprocess* functions, so continue.
+                    continue
+                elif args[0][0] == '%':
+                    # This is the beginning of a new section.  Handle its header
+                    # here.
+                    newSection = args[0]
+                    if not self._validState(newSection):
+                        raise KickstartParseError, formatErrorMsg(lineno, msg=_("Unknown kickstart section: %s" % newSection))
+
+                    self._state = newSection
+                    obj = self._sections[self._state]
+                    self._tryFunc(lambda: obj.handleHeader(lineno, args))
+
+                    # This will handle all section processing, kicking us back
+                    # out to STATE_COMMANDS at the end with the current line
+                    # being the next section header, etc.
+                    lineno = self._readSection(lineIter, lineno)
+                else:
+                    # This is a command in the command section.  Dispatch to it.
+                    self._tryFunc(lambda: self.handleCommand(lineno, args))
+            elif self._state == STATE_END:
+                break
+
+    def readKickstartFromString (self, s, reset=True):
+        """Process a kickstart file, provided as the string str."""
+        if reset:
+            self._reset()
+
+        # Add a "" to the end of the list so the string reader acts like the
+        # file reader and we only get StopIteration when we're after the final
+        # line of input.
+        i = PutBackIterator(s.splitlines(True) + [""])
+        self._stateMachine (i)
+
+    def readKickstart(self, f, reset=True):
+        """Process a kickstart file, given by the filename f."""
+        if reset:
+            self._reset()
+
+        # an %include might not specify a full path.  if we don't try to figure
+        # out what the path should have been, then we're unable to find it
+        # requiring full path specification, though, sucks.  so let's make
+        # the reading "smart" by keeping track of what the path is at each
+        # include depth.
+        if not os.path.exists(f):
+            if self.currentdir.has_key(self._includeDepth - 1):
+                if os.path.exists(os.path.join(self.currentdir[self._includeDepth - 1], f)):
+                    f = os.path.join(self.currentdir[self._includeDepth - 1], f)
+
+        cd = os.path.dirname(f)
+        if not cd.startswith("/"):
+            cd = os.path.abspath(cd)
+        self.currentdir[self._includeDepth] = cd
+
+        try:
+            s = urlread(f)
+        except grabber.URLGrabError, e:
+            raise KickstartError, formatErrorMsg(0, msg=_("Unable to open input kickstart file: %s") % e.strerror)
+
+        self.readKickstartFromString(s, reset=False)
+
+    def setupSections(self):
+        """Install the sections all kickstart files support.  You may override
+           this method in a subclass, but should avoid doing so unless you know
+           what you're doing.
+        """
+        self._sections = {}
+
+        # Install the sections all kickstart files support.
+        self.registerSection(PreScriptSection(self.handler, dataObj=Script))
+        self.registerSection(PostScriptSection(self.handler, dataObj=Script))
+        self.registerSection(TracebackScriptSection(self.handler, dataObj=Script))
+        self.registerSection(PackageSection(self.handler))