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)
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)
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 _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 _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()
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()
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)
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
