cdrom.image/updates/dispatch.py

#
# dispatch.py: install/upgrade master flow control
#
# Erik Troan <ewt@redhat.com>
#
# Copyright 2001-2002 Red Hat, Inc.
#
# This software may be freely redistributed under the terms of the GNU
# library public license.
#
# You should have received a copy of the GNU Library Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
#

import string
from types import *
from constants import *
from packages import readPackages, checkDependencies, doInstall
from packages import handleX11Packages, writeConfiguration, writeXConfiguration
from packages import checkMonitorOK, setSaneXSettings
from packages import writeKSConfiguration, turnOnFilesystems
from packages import doMigrateFilesystems
from packages import queryUpgradeContinue
from packages import doPreInstall, doPostInstall, doPostAction,copyAnacondaLogs
from autopart import doAutoPartition
from packages import firstbootConfiguration
from packages import betaNagScreen
from packages import selectLanguageSupportGroups
from packages import setupTimezone
from packages import setFileCons
from partitioning import partitionMethodSetup, partitionObjectsInitialize
from partitioning import partitioningComplete
from floppy import makeBootdisk
from bootloader import writeBootloader, bootloaderSetupChoices
from flags import flags
from upgrade import upgradeFindPackages, upgradeMountFilesystems
from upgrade import upgradeSwapSuggestion, upgradeMigrateFind
from upgrade import findRootParts
from network import networkDeviceCheck
from installmethod import doMethodComplete

from rhpl.log import log

# These are all of the install steps, in order. Note that upgrade and
# install steps are the same thing! Upgrades skip install steps, while
# installs skip upgrade steps.

#
# items are one of
#
#       ( name, tuple)
#       ( name, Function, tuple)
#
# in the second case, the function is called directly from the dispatcher

installSteps = [
    ("welcome", ("id.configFileData",)),
    ("betanag", betaNagScreen, ("intf", "dir")),
    ("language", ("intf", "id.instLanguage")),
    ("keyboard", ("id.instLanguage.getDefaultKeyboard()", "id.keyboard")),
    ("checkmonitorok", checkMonitorOK, ("id.monitor", "dispatch")),
    ("monitor", ("id.xsetup", "id.monitor", "intf")),
    ("setsanex", setSaneXSettings, ("id.xsetup",)),
    ("findrootparts", findRootParts, ("intf", "id", "dispatch", "dir", "instPath")),
    ("findinstall", ("dispatch", "intf", "id", "instPath")),
    ("installtype", ("dispatch", "id", "method", "intf")),
    ("zfcpconfig", ("id.zfcp", "id.diskset", "intf")),
    ("partitionmethod", ("id.partitions", "id.instClass")),
    ("partitionobjinit", partitionObjectsInitialize, ("id.diskset",
                                                      "id.partitions",
                                                      "dir", "intf")),
    ("partitionmethodsetup", partitionMethodSetup, ("id.partitions",
                                                    "dispatch")),
    ("autopartition", ("id.diskset", "id.partitions", "intf", "dispatch")),
    ("autopartitionexecute", doAutoPartition, ("dir", "id.diskset",
                                               "id.partitions", "intf",
                                               "id.instClass", "dispatch")),
    ("fdisk", ("id.diskset", "id.partitions", "intf")),
    ("fdasd", ("id.diskset", "id.partitions", "intf")),
    ("partition", ("id.fsset", "id.diskset", "id.partitions", "intf")),
    ("upgrademount", upgradeMountFilesystems, ("intf", "id.upgradeRoot",
                                               "id.fsset", "instPath")),
    ("upgradecontinue", queryUpgradeContinue, ("intf", "dir")),
    ("upgradeswapsuggestion", upgradeSwapSuggestion, ("dispatch", "id",
                                                      "instPath")),
    ("addswap", ("intf", "id.fsset", "instPath",
                 "id.upgradeSwapInfo", "dispatch")),
    ("partitiondone", partitioningComplete, ("id.bootloader", "id.fsset",
                                             "id.diskset", "id.partitions",
                                             "intf", "instPath", "dir")),
    ("upgrademigfind", upgradeMigrateFind, ("dispatch", "id.fsset")),
    ("upgrademigratefs",  ("id.fsset",)),
    ("upgbootloader", ("dispatch", "id.bootloader")),
    ("bootloadersetup", bootloaderSetupChoices, ("dispatch", "id.bootloader",
                                                 "id.fsset", "id.diskset",
                                                 "dir")),
    ("bootloader", ("dispatch", "id.bootloader", "id.fsset", "id.diskset")),
    ("bootloaderadvanced", ("dispatch", "id.bootloader", "id.fsset",
                            "id.diskset")),
    ("networkdevicecheck", networkDeviceCheck, ("id.network", "dispatch")),
    ("network", ("id.network", "dir", "intf")),
    ("firewall", ("intf", "id.network", "id.firewall", "id.security")),
    ("languagesupport", ("id.langSupport",)),
    ("timezone", ("id.instLanguage", "id.timezone")),
    ("accounts", ("intf", "id.rootPassword")),
    ("authentication", ("id.auth",)),
    ("readcomps", readPackages, ("intf", "method", "id")),
    ("desktopchoice", ("intf", "id.instClass", "dispatch", "id.grpset")),
    ("findpackages", upgradeFindPackages, ("intf", "method", "id",
                                           "instPath", "dir")),
    ("selectlangpackages", selectLanguageSupportGroups, ("id.grpset","id.langSupport")),    
    ("package-selection", ("id.grpset", "id.langSupport", "id.instClass", "dispatch")),
    ("indivpackage", ("id.grpset",)),
    ("handleX11pkgs", handleX11Packages, ("dir", "intf", "dispatch",
                                          "id", "instPath")),
    ("checkdeps", checkDependencies, ("dir", "intf", "dispatch",
                                      "id", "instPath")),
    ("dependencies", ("id.grpset", "id.dependencies")),
    ("confirminstall", ("intf", "id",)),
    ("confirmupgrade", ("intf", "id",)),
    ("install", ("dir", "intf", "id")),
    ("enablefilesystems", turnOnFilesystems, ("dir", "id.fsset",
                                              "id.diskset", "id.partitions",
                                              "id.upgrade", "instPath")),
    ("migratefilesystems", doMigrateFilesystems, ("dir", "id.fsset",
                                              "id.diskset", "id.upgrade",
                                              "instPath")),
    ("setuptime", setupTimezone, ("id.timezone", "id.upgrade", "instPath",
                                  "dir")),
    ("preinstallconfig", doPreInstall, ("method", "id", "intf", "instPath",
                                        "dir")),
    ("installpackages", doInstall, ("method", "id", "intf", "instPath")),
    ("postinstallconfig", doPostInstall, ("method", "id", "intf", "instPath")),
    ("writeconfig", writeConfiguration, ("id", "instPath")),
    ("firstboot", firstbootConfiguration, ("id", "instPath")),
    ("instbootloader", writeBootloader, ("intf", "instPath", "id.fsset", 
                                         "id.bootloader", "id.langSupport",
                                         "id.grpset")),
    ("bootdisk", ("dir", "dispatch", "id.fsset")),
    ("makebootdisk", makeBootdisk, ("intf", "dir", "id.floppyDevice",
                                    "id.grpset", "instPath", "id.bootloader")),
#
# we dont use videocard and xcustom currently, they are still listed as
# steps but are not listed in the list of install steps in installclass.py
#    
    ("videocard", ("dispatch", "id.xsetup", "id.videocard", "intf")),
#    
# this got moved up to just after mouse config, only runs if monitor probe
# failed. Needs to be here if we enable videocard and xcustom again.
#    ("monitor", ("id.xsetup", "id.monitor", "intf")),
    ("xcustom", ("id.xsetup", "id.monitor", "id.videocard",
                 "id.desktop", "id.grpset", "id.instClass", "instPath")),
    ("writexconfig", writeXConfiguration, ("id", "instPath")),
    ("writeksconfig", writeKSConfiguration, ("id", "instPath")),
    ("setfilecon", setFileCons, ("instPath","id.partitions")),
    ("copylogs", copyAnacondaLogs, ("instPath",)),
    ("dopostaction", doPostAction, ("id", "instPath")),
    ("methodcomplete", doMethodComplete, ("method",)),
    ("complete", ()),
    ]

class Dispatcher:

    def gotoPrev(self):
        self.dir = -1
        self.moveStep()

    def gotoNext(self):
        self.dir = 1
        self.moveStep()

    def canGoBack(self):
        # begin with the step before this one.  If all steps are skipped,
        # we can not go backwards from this screen
        i = self.step - 1
        while i >= self.firstStep:
            if (not self.skipSteps.has_key(installSteps[i][0])
                and (type(installSteps[i][1]) != FunctionType)):
                return 1
            i = i - 1
        return 0

    def setStepList(self, *steps):
        # only remove non-permanently skipped steps from our skip list
        for step, state in self.skipSteps.items():
            if state == 1:
                del self.skipSteps[step]

        stepExists = {}
        for step in installSteps:
            name = step[0]
            if not name in steps:
                self.skipSteps[name] = 1

            stepExists[name] = 1

        for name in steps:
            if not stepExists.has_key(name):
                raise KeyError, ("step %s does not exist" % name)

    def stepInSkipList(self, step):
        return self.skipSteps.has_key(step)

    def skipStep(self, stepToSkip, skip = 1, permanent = 0):
        for step in installSteps:
            name = step[0]
            if name == stepToSkip:
                if skip:
                    if permanent:
                        self.skipSteps[name] = 2
                    elif not self.skipSteps.has_key(name):
                        self.skipSteps[name] = 1
                elif self.skipSteps.has_key(name):
                    # if marked as permanent then dont change
                    if self.skipSteps[name] != 2:
                        del self.skipSteps[name]
                return

        raise KeyError, ("unknown step %s" % stepToSkip)

    def moveStep(self):
        if self.step == None:
            self.step = self.firstStep
        else:
            self.step = self.step + self.dir

        if self.step >= len(installSteps):
            return None

        while ((self.step >= self.firstStep
                and self.step < len(installSteps))
               and (self.skipSteps.has_key(installSteps[self.step][0])
                    or (type(installSteps[self.step][1]) == FunctionType))):
            info = installSteps[self.step]
            if ((type(info[1]) == FunctionType)
                and (not self.skipSteps.has_key(info[0]))):
                log("moving (%d) to step %s" %(self.dir, info[0]))
                (func, args) = info[1:]
                rc = apply(func, self.bindArgs(args))
                if rc == DISPATCH_BACK:
                    self.dir = -1
                elif rc == DISPATCH_FORWARD:
                    self.dir = 1
                # if anything else, leave self.dir alone

            self.step = self.step + self.dir
            if self.step == len(installSteps):
                return None

        if (self.step < 0):
            # pick the first step not in the skip list
            self.step = 0
            while self.skipSteps.has_key(installSteps[self.step][0]):
                self.step = self.step + 1
        elif self.step >= len(installSteps):
            self.step = len(installSteps) - 1
            while self.skipSteps.has_key(installSteps[self.step][0]):
                self.step = self.step - 1
        log("moving (%d) to step %s" %(self.dir, installSteps[self.step][0]))

    def bindArgs(self, args):
        newArgs = ()
        for arg in args:
            obj = self
            for item in string.split(arg, '.'):
                if not obj.__dict__.has_key(item):
                    exec "obj = self.%s" %(arg,)
                    break
                obj = obj.__dict__[item]
            newArgs = newArgs + (obj,)

        return newArgs

    def currentStep(self):
        if self.step == None:
            self.gotoNext()
        elif self.step >= len(installSteps):
            return (None, None)

        stepInfo = installSteps[self.step]
        step = stepInfo[0]
        args = self.bindArgs(stepInfo[1])

        return (step, args)

    def __init__(self, intf, id, method, instPath):
        self.dir = DISPATCH_FORWARD
        self.step = None
        self.skipSteps = {}

        self.id = id
        self.flags = flags
        self.intf = intf
        self.method = method
        self.dispatch = self
        self.instPath = instPath
        self.firstStep = 0
1	slords	1.1	#
2			# dispatch.py: install/upgrade master flow control
3			#
4			# Erik Troan <ewt@redhat.com>
5			#
6			# Copyright 2001-2002 Red Hat, Inc.
7			#
8			# This software may be freely redistributed under the terms of the GNU
9			# library public license.
10			#
11			# You should have received a copy of the GNU Library Public License
12			# along with this program; if not, write to the Free Software
13			# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
14			#
15
16			import string
17			from types import *
18			from constants import *
19			from packages import readPackages, checkDependencies, doInstall
20			from packages import handleX11Packages, writeConfiguration, writeXConfiguration
21			from packages import checkMonitorOK, setSaneXSettings
22			from packages import writeKSConfiguration, turnOnFilesystems
23			from packages import doMigrateFilesystems
24			from packages import queryUpgradeContinue
25			from packages import doPreInstall, doPostInstall, doPostAction,copyAnacondaLogs
26			from autopart import doAutoPartition
27			from packages import firstbootConfiguration
28			from packages import betaNagScreen
29			from packages import selectLanguageSupportGroups
30			from packages import setupTimezone
31			from packages import setFileCons
32			from partitioning import partitionMethodSetup, partitionObjectsInitialize
33			from partitioning import partitioningComplete
34			from floppy import makeBootdisk
35			from bootloader import writeBootloader, bootloaderSetupChoices
36			from flags import flags
37			from upgrade import upgradeFindPackages, upgradeMountFilesystems
38			from upgrade import upgradeSwapSuggestion, upgradeMigrateFind
39			from upgrade import findRootParts
40			from network import networkDeviceCheck
41			from installmethod import doMethodComplete
42
43			from rhpl.log import log
44
45			# These are all of the install steps, in order. Note that upgrade and
46			# install steps are the same thing! Upgrades skip install steps, while
47			# installs skip upgrade steps.
48
49			#
50			# items are one of
51			#
52			# ( name, tuple)
53			# ( name, Function, tuple)
54			#
55			# in the second case, the function is called directly from the dispatcher
56
57			installSteps = [
58			("welcome", ("id.configFileData",)),
59			("betanag", betaNagScreen, ("intf", "dir")),
60			("language", ("intf", "id.instLanguage")),
61			("keyboard", ("id.instLanguage.getDefaultKeyboard()", "id.keyboard")),
62			("checkmonitorok", checkMonitorOK, ("id.monitor", "dispatch")),
63			("monitor", ("id.xsetup", "id.monitor", "intf")),
64			("setsanex", setSaneXSettings, ("id.xsetup",)),
65			("findrootparts", findRootParts, ("intf", "id", "dispatch", "dir", "instPath")),
66			("findinstall", ("dispatch", "intf", "id", "instPath")),
67			("installtype", ("dispatch", "id", "method", "intf")),
68			("zfcpconfig", ("id.zfcp", "id.diskset", "intf")),
69			("partitionmethod", ("id.partitions", "id.instClass")),
70			("partitionobjinit", partitionObjectsInitialize, ("id.diskset",
71			"id.partitions",
72			"dir", "intf")),
73			("partitionmethodsetup", partitionMethodSetup, ("id.partitions",
74			"dispatch")),
75			("autopartition", ("id.diskset", "id.partitions", "intf", "dispatch")),
76			("autopartitionexecute", doAutoPartition, ("dir", "id.diskset",
77			"id.partitions", "intf",
78			"id.instClass", "dispatch")),
79			("fdisk", ("id.diskset", "id.partitions", "intf")),
80			("fdasd", ("id.diskset", "id.partitions", "intf")),
81			("partition", ("id.fsset", "id.diskset", "id.partitions", "intf")),
82			("upgrademount", upgradeMountFilesystems, ("intf", "id.upgradeRoot",
83			"id.fsset", "instPath")),
84			("upgradecontinue", queryUpgradeContinue, ("intf", "dir")),
85			("upgradeswapsuggestion", upgradeSwapSuggestion, ("dispatch", "id",
86			"instPath")),
87			("addswap", ("intf", "id.fsset", "instPath",
88			"id.upgradeSwapInfo", "dispatch")),
89			("partitiondone", partitioningComplete, ("id.bootloader", "id.fsset",
90			"id.diskset", "id.partitions",
91			"intf", "instPath", "dir")),
92			("upgrademigfind", upgradeMigrateFind, ("dispatch", "id.fsset")),
93			("upgrademigratefs", ("id.fsset",)),
94			("upgbootloader", ("dispatch", "id.bootloader")),
95			("bootloadersetup", bootloaderSetupChoices, ("dispatch", "id.bootloader",
96			"id.fsset", "id.diskset",
97			"dir")),
98			("bootloader", ("dispatch", "id.bootloader", "id.fsset", "id.diskset")),
99			("bootloaderadvanced", ("dispatch", "id.bootloader", "id.fsset",
100			"id.diskset")),
101			("networkdevicecheck", networkDeviceCheck, ("id.network", "dispatch")),
102			("network", ("id.network", "dir", "intf")),
103			("firewall", ("intf", "id.network", "id.firewall", "id.security")),
104			("languagesupport", ("id.langSupport",)),
105			("timezone", ("id.instLanguage", "id.timezone")),
106			("accounts", ("intf", "id.rootPassword")),
107			("authentication", ("id.auth",)),
108			("readcomps", readPackages, ("intf", "method", "id")),
109			("desktopchoice", ("intf", "id.instClass", "dispatch", "id.grpset")),
110			("findpackages", upgradeFindPackages, ("intf", "method", "id",
111			"instPath", "dir")),
112			("selectlangpackages", selectLanguageSupportGroups, ("id.grpset","id.langSupport")),
113			("package-selection", ("id.grpset", "id.langSupport", "id.instClass", "dispatch")),
114			("indivpackage", ("id.grpset",)),
115			("handleX11pkgs", handleX11Packages, ("dir", "intf", "dispatch",
116			"id", "instPath")),
117			("checkdeps", checkDependencies, ("dir", "intf", "dispatch",
118			"id", "instPath")),
119			("dependencies", ("id.grpset", "id.dependencies")),
120			("confirminstall", ("intf", "id",)),
121			("confirmupgrade", ("intf", "id",)),
122			("install", ("dir", "intf", "id")),
123			("enablefilesystems", turnOnFilesystems, ("dir", "id.fsset",
124			"id.diskset", "id.partitions",
125			"id.upgrade", "instPath")),
126			("migratefilesystems", doMigrateFilesystems, ("dir", "id.fsset",
127			"id.diskset", "id.upgrade",
128			"instPath")),
129			("setuptime", setupTimezone, ("id.timezone", "id.upgrade", "instPath",
130			"dir")),
131			("preinstallconfig", doPreInstall, ("method", "id", "intf", "instPath",
132			"dir")),
133			("installpackages", doInstall, ("method", "id", "intf", "instPath")),
134			("postinstallconfig", doPostInstall, ("method", "id", "intf", "instPath")),
135			("writeconfig", writeConfiguration, ("id", "instPath")),
136			("firstboot", firstbootConfiguration, ("id", "instPath")),
137			("instbootloader", writeBootloader, ("intf", "instPath", "id.fsset",
138			"id.bootloader", "id.langSupport",
139			"id.grpset")),
140			("bootdisk", ("dir", "dispatch", "id.fsset")),
141			("makebootdisk", makeBootdisk, ("intf", "dir", "id.floppyDevice",
142			"id.grpset", "instPath", "id.bootloader")),
143			#
144			# we dont use videocard and xcustom currently, they are still listed as
145			# steps but are not listed in the list of install steps in installclass.py
146			#
147			("videocard", ("dispatch", "id.xsetup", "id.videocard", "intf")),
148			#
149			# this got moved up to just after mouse config, only runs if monitor probe
150			# failed. Needs to be here if we enable videocard and xcustom again.
151			# ("monitor", ("id.xsetup", "id.monitor", "intf")),
152			("xcustom", ("id.xsetup", "id.monitor", "id.videocard",
153			"id.desktop", "id.grpset", "id.instClass", "instPath")),
154			("writexconfig", writeXConfiguration, ("id", "instPath")),
155			("writeksconfig", writeKSConfiguration, ("id", "instPath")),
156			("setfilecon", setFileCons, ("instPath","id.partitions")),
157			("copylogs", copyAnacondaLogs, ("instPath",)),
158			("dopostaction", doPostAction, ("id", "instPath")),
159			("methodcomplete", doMethodComplete, ("method",)),
160			("complete", ()),
161			]
162
163			class Dispatcher:
164
165			def gotoPrev(self):
166			self.dir = -1
167			self.moveStep()
168
169			def gotoNext(self):
170			self.dir = 1
171			self.moveStep()
172
173			def canGoBack(self):
174			# begin with the step before this one. If all steps are skipped,
175			# we can not go backwards from this screen
176			i = self.step - 1
177			while i >= self.firstStep:
178			if (not self.skipSteps.has_key(installSteps[i][0])
179			and (type(installSteps[i][1]) != FunctionType)):
180			return 1
181			i = i - 1
182			return 0
183
184			def setStepList(self, *steps):
185			# only remove non-permanently skipped steps from our skip list
186			for step, state in self.skipSteps.items():
187			if state == 1:
188			del self.skipSteps[step]
189
190			stepExists = {}
191			for step in installSteps:
192			name = step[0]
193			if not name in steps:
194			self.skipSteps[name] = 1
195
196			stepExists[name] = 1
197
198			for name in steps:
199			if not stepExists.has_key(name):
200			raise KeyError, ("step %s does not exist" % name)
201
202			def stepInSkipList(self, step):
203			return self.skipSteps.has_key(step)
204
205			def skipStep(self, stepToSkip, skip = 1, permanent = 0):
206			for step in installSteps:
207			name = step[0]
208			if name == stepToSkip:
209			if skip:
210			if permanent:
211			self.skipSteps[name] = 2
212			elif not self.skipSteps.has_key(name):
213			self.skipSteps[name] = 1
214			elif self.skipSteps.has_key(name):
215			# if marked as permanent then dont change
216			if self.skipSteps[name] != 2:
217			del self.skipSteps[name]
218			return
219
220			raise KeyError, ("unknown step %s" % stepToSkip)
221
222			def moveStep(self):
223			if self.step == None:
224			self.step = self.firstStep
225			else:
226			self.step = self.step + self.dir
227
228			if self.step >= len(installSteps):
229			return None
230
231			while ((self.step >= self.firstStep
232			and self.step < len(installSteps))
233			and (self.skipSteps.has_key(installSteps[self.step][0])
234			or (type(installSteps[self.step][1]) == FunctionType))):
235			info = installSteps[self.step]
236			if ((type(info[1]) == FunctionType)
237			and (not self.skipSteps.has_key(info[0]))):
238			log("moving (%d) to step %s" %(self.dir, info[0]))
239			(func, args) = info[1:]
240			rc = apply(func, self.bindArgs(args))
241			if rc == DISPATCH_BACK:
242			self.dir = -1
243			elif rc == DISPATCH_FORWARD:
244			self.dir = 1
245			# if anything else, leave self.dir alone
246
247			self.step = self.step + self.dir
248			if self.step == len(installSteps):
249			return None
250
251			if (self.step < 0):
252			# pick the first step not in the skip list
253			self.step = 0
254			while self.skipSteps.has_key(installSteps[self.step][0]):
255			self.step = self.step + 1
256			elif self.step >= len(installSteps):
257			self.step = len(installSteps) - 1
258			while self.skipSteps.has_key(installSteps[self.step][0]):
259			self.step = self.step - 1
260			log("moving (%d) to step %s" %(self.dir, installSteps[self.step][0]))
261
262			def bindArgs(self, args):
263			newArgs = ()
264			for arg in args:
265			obj = self
266			for item in string.split(arg, '.'):
267			if not obj.__dict__.has_key(item):
268			exec "obj = self.%s" %(arg,)
269			break
270			obj = obj.__dict__[item]
271			newArgs = newArgs + (obj,)
272
273			return newArgs
274
275			def currentStep(self):
276			if self.step == None:
277			self.gotoNext()
278			elif self.step >= len(installSteps):
279			return (None, None)
280
281			stepInfo = installSteps[self.step]
282			step = stepInfo[0]
283			args = self.bindArgs(stepInfo[1])
284
285			return (step, args)
286
287			def __init__(self, intf, id, method, instPath):
288			self.dir = DISPATCH_FORWARD
289			self.step = None
290			self.skipSteps = {}
291
292			self.id = id
293			self.flags = flags
294			self.intf = intf
295			self.method = method
296			self.dispatch = self
297			self.instPath = instPath
298			self.firstStep = 0