#!/usr/bin/env python
# Copyright 2012 GRNET S.A. All rights reserved.
#
# Redistribution and use in source and binary forms, with or
# without modification, are permitted provided that the following
# conditions are met:
#
# 1. Redistributions of source code must retain the above
# copyright notice, this list of conditions and the following
# disclaimer.
#
# 2. Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following
# disclaimer in the documentation and/or other materials
# provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
# OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
# The views and conclusions contained in the software and
# documentation are those of the authors and should not be
# interpreted as representing official policies, either expressed
# or implied, of GRNET S.A.
import dialog
import sys
import os
import textwrap
import signal
import StringIO
import optparse
from image_creator import __version__ as version
from image_creator.util import FatalError, MD5
from image_creator.output.dialog import GaugeOutput, InfoBoxOutput
from image_creator.disk import Disk
from image_creator.os_type import os_cls
from image_creator.kamaki_wrapper import Kamaki, ClientError
from image_creator.help import get_help_file
from image_creator.dialog_wizard import wizard
MSGBOX_WIDTH = 60
YESNO_WIDTH = 50
MENU_WIDTH = 70
INPUTBOX_WIDTH = 70
CHECKBOX_WIDTH = 70
HELP_WIDTH = 70
INFOBOX_WIDTH = 70
CONFIGURATION_TASKS = [
("Partition table manipulation", ["FixPartitionTable"],
["linux", "windows"]),
("File system resize",
["FilesystemResizeUnmounted", "FilesystemResizeMounted"],
["linux", "windows"]),
("Swap partition configuration", ["AddSwap"], ["linux"]),
("SSH keys removal", ["DeleteSSHKeys"], ["linux"]),
("Temporal RDP disabling", ["DisableRemoteDesktopConnections"],
["windows"]),
("SELinux relabeling at next boot", ["SELinuxAutorelabel"], ["linux"]),
("Hostname/Computer Name assignment", ["AssignHostname"],
["windows", "linux"]),
("Password change", ["ChangePassword"], ["windows", "linux"]),
("File injection", ["EnforcePersonality"], ["windows", "linux"])
]
class Reset(Exception):
pass
class metadata_monitor(object):
def __init__(self, session, meta):
self.session = session
self.meta = meta
def __enter__(self):
self.old = {}
for (k, v) in self.meta.items():
self.old[k] = v
def __exit__(self, type, value, traceback):
d = self.session['dialog']
altered = {}
added = {}
for (k, v) in self.meta.items():
if k not in self.old:
added[k] = v
elif self.old[k] != v:
altered[k] = v
if not (len(added) or len(altered)):
return
msg = "The last action has changed some image properties:\n\n"
if len(added):
msg += "New image properties:\n"
for (k, v) in added.items():
msg += ' %s: "%s"\n' % (k, v)
msg += "\n"
if len(altered):
msg += "Updated image properties:\n"
for (k, v) in altered.items():
msg += ' %s: "%s" -> "%s"\n' % (k, self.old[k], v)
msg += "\n"
self.session['metadata'].update(added)
self.session['metadata'].update(altered)
d.msgbox(msg, title="Image Property Changes", width=MSGBOX_WIDTH)
def extract_metadata_string(session):
metadata = ['%s=%s' % (k, v) for (k, v) in session['metadata'].items()]
if 'task_metadata' in session:
metadata.extend("%s=yes" % m for m in session['task_metadata'])
return '\n'.join(metadata) + '\n'
def confirm_exit(d, msg=''):
return not d.yesno("%s Do you want to exit?" % msg, width=YESNO_WIDTH)
def confirm_reset(d):
return not d.yesno("Are you sure you want to reset everything?",
width=YESNO_WIDTH, defaultno=1)
def update_background_title(session):
d = session['dialog']
dev = session['device']
MB = 2 ** 20
size = (dev.size + MB - 1) // MB
shrinked = 'shrinked' in session and session['shrinked']
postfix = " (shrinked)" if shrinked else ''
title = "OS: %s, Distro: %s, Size: %dMB%s" % \
(dev.ostype, dev.distro, size, postfix)
d.setBackgroundTitle(title)
def extract_image(session):
d = session['dialog']
dir = os.getcwd()
while 1:
if dir and dir[-1] != os.sep:
dir = dir + os.sep
(code, path) = d.fselect(dir, 10, 50, title="Save image as...")
if code in (d.DIALOG_CANCEL, d.DIALOG_ESC):
return False
if os.path.isdir(path):
dir = path
continue
if os.path.isdir("%s.meta" % path):
d.msgbox("Can't overwrite directory `%s.meta'" % path,
width=MSGBOX_WIDTH)
continue
if os.path.isdir("%s.md5sum" % path):
d.msgbox("Can't overwrite directory `%s.md5sum'" % path,
width=MSGBOX_WIDTH)
continue
basedir = os.path.dirname(path)
name = os.path.basename(path)
if not os.path.exists(basedir):
d.msgbox("Directory `%s' does not exist" % basedir,
width=MSGBOX_WIDTH)
continue
dir = basedir
if len(name) == 0:
continue
files = ["%s%s" % (path, ext) for ext in ('', '.meta', '.md5sum')]
overwrite = filter(os.path.exists, files)
if len(overwrite) > 0:
if d.yesno("The following file(s) exist:\n"
"%s\nDo you want to overwrite them?" %
"\n".join(overwrite), width=YESNO_WIDTH):
continue
out = GaugeOutput(d, "Image Extraction", "Extracting image...")
try:
dev = session['device']
if "checksum" not in session:
size = dev.size
md5 = MD5(out)
session['checksum'] = md5.compute(session['snapshot'], size)
# Extract image file
dev.out = out
dev.dump(path)
# Extract metadata file
out.output("Extracting metadata file...")
with open('%s.meta' % path, 'w') as f:
f.write(extract_metadata_string(session))
out.success('done')
# Extract md5sum file
out.output("Extracting md5sum file...")
md5str = "%s %s\n" % (session['checksum'], name)
with open('%s.md5sum' % path, 'w') as f:
f.write(md5str)
out.success("done")
finally:
out.cleanup()
d.msgbox("Image file `%s' was successfully extracted!" % path,
width=MSGBOX_WIDTH)
break
return True
def upload_image(session):
d = session["dialog"]
size = session['device'].size
if "account" not in session:
d.msgbox("You need to provide your ~okeanos login username before you "
"can upload images to pithos+", width=MSGBOX_WIDTH)
return False
if "token" not in session:
d.msgbox("You need to provide your ~okeanos account authentication "
"token before you can upload images to pithos+",
width=MSGBOX_WIDTH)
return False
while 1:
init = session["upload"] if "upload" in session else ''
(code, answer) = d.inputbox("Please provide a filename:", init=init,
width=INPUTBOX_WIDTH)
if code in (d.DIALOG_CANCEL, d.DIALOG_ESC):
return False
filename = answer.strip()
if len(filename) == 0:
d.msgbox("Filename cannot be empty", width=MSGBOX_WIDTH)
continue
break
out = GaugeOutput(d, "Image Upload", "Uploading...")
try:
if 'checksum' not in session:
md5 = MD5(out)
session['checksum'] = md5.compute(session['snapshot'], size)
kamaki = Kamaki(session['account'], session['token'], out)
try:
# Upload image file
with open(session['snapshot'], 'rb') as f:
session["upload"] = kamaki.upload(f, size, filename,
"Calculating block hashes",
"Uploading missing blocks")
# Upload metadata file
out.output("Uploading metadata file...")
metastring = extract_metadata_string(session)
kamaki.upload(StringIO.StringIO(metastring), size=len(metastring),
remote_path="%s.meta" % filename)
out.success("done")
# Upload md5sum file
out.output("Uploading md5sum file...")
md5str = "%s %s\n" % (session['checksum'], filename)
kamaki.upload(StringIO.StringIO(md5str), size=len(md5str),
remote_path="%s.md5sum" % filename)
out.success("done")
except ClientError as e:
d.msgbox("Error in pithos+ client: %s" % e.message,
title="Pithos+ Client Error", width=MSGBOX_WIDTH)
if 'upload' in session:
del session['upload']
return False
finally:
out.cleanup()
d.msgbox("Image file `%s' was successfully uploaded to pithos+" % filename,
width=MSGBOX_WIDTH)
return True
def register_image(session):
d = session["dialog"]
if "account" not in session:
d.msgbox("You need to provide your ~okeanos login username before you "
"can register an images to cyclades",
width=MSGBOX_WIDTH)
return False
if "token" not in session:
d.msgbox("You need to provide your ~okeanos account authentication "
"token before you can register an images to cyclades",
width=MSGBOX_WIDTH)
return False
if "upload" not in session:
d.msgbox("You need to upload the image to pithos+ before you can "
"register it to cyclades", width=MSGBOX_WIDTH)
return False
while 1:
(code, answer) = d.inputbox("Please provide a registration name:",
width=INPUTBOX_WIDTH)
if code in (d.DIALOG_CANCEL, d.DIALOG_ESC):
return False
name = answer.strip()
if len(name) == 0:
d.msgbox("Registration name cannot be empty", width=MSGBOX_WIDTH)
continue
break
metadata = {}
metadata.update(session['metadata'])
if 'task_metadata' in session:
for key in session['task_metadata']:
metadata[key] = 'yes'
out = GaugeOutput(d, "Image Registration", "Registrating image...")
try:
out.output("Registring image to cyclades...")
try:
kamaki = Kamaki(session['account'], session['token'], out)
kamaki.register(name, session['upload'], metadata)
out.success('done')
except ClientError as e:
d.msgbox("Error in pithos+ client: %s" % e.message)
return False
finally:
out.cleanup()
d.msgbox("Image `%s' was successfully registered to cyclades as `%s'" %
(session['upload'], name), width=MSGBOX_WIDTH)
return True
def kamaki_menu(session):
d = session['dialog']
default_item = "Account"
account = Kamaki.get_account()
if account:
session['account'] = account
token = Kamaki.get_token()
if token:
session['token'] = token
while 1:
account = session["account"] if "account" in session else "<none>"
token = session["token"] if "token" in session else "<none>"
upload = session["upload"] if "upload" in session else "<none>"
choices = [("Account", "Change your ~okeanos username: %s" % account),
("Token", "Change your ~okeanos token: %s" % token),
("Upload", "Upload image to pithos+"),
("Register", "Register the image to cyclades: %s" % upload)]
(code, choice) = d.menu(
text="Choose one of the following or press <Back> to go back.",
width=MENU_WIDTH, choices=choices, cancel="Back", height=13,
menu_height=5, default_item=default_item,
title="Image Registration Menu")
if code in (d.DIALOG_CANCEL, d.DIALOG_ESC):
return False
if choice == "Account":
default_item = "Account"
(code, answer) = d.inputbox(
"Please provide your ~okeanos account e-mail address:",
init=session["account"] if "account" in session else '',
width=70)
if code in (d.DIALOG_CANCEL, d.DIALOG_ESC):
continue
if len(answer) == 0 and "account" in session:
del session["account"]
else:
session["account"] = answer.strip()
Kamaki.save_account(session['account'])
default_item = "Token"
elif choice == "Token":
default_item = "Token"
(code, answer) = d.inputbox(
"Please provide your ~okeanos account authetication token:",
init=session["token"] if "token" in session else '',
width=70)
if code in (d.DIALOG_CANCEL, d.DIALOG_ESC):
continue
if len(answer) == 0 and "token" in session:
del session["token"]
else:
session["token"] = answer.strip()
Kamaki.save_token(session['account'])
default_item = "Upload"
elif choice == "Upload":
if upload_image(session):
default_item = "Register"
else:
default_item = "Upload"
elif choice == "Register":
if register_image(session):
return True
else:
default_item = "Register"
def add_property(session):
d = session['dialog']
while 1:
(code, answer) = d.inputbox("Please provide a name for a new image"
" property:", width=INPUTBOX_WIDTH)
if code in (d.DIALOG_CANCEL, d.DIALOG_ESC):
return False
name = answer.strip()
if len(name) == 0:
d.msgbox("A property name cannot be empty", width=MSGBOX_WIDTH)
continue
break
while 1:
(code, answer) = d.inputbox("Please provide a value for image "
"property %s" % name, width=INPUTBOX_WIDTH)
if code in (d.DIALOG_CANCEL, d.DIALOG_ESC):
return False
value = answer.strip()
if len(value) == 0:
d.msgbox("Value cannot be empty", width=MSGBOX_WIDTH)
continue
break
session['metadata'][name] = value
return True
def modify_properties(session):
d = session['dialog']
while 1:
choices = []
for (key, val) in session['metadata'].items():
choices.append((str(key), str(val)))
(code, choice) = d.menu(
"In this menu you can edit existing image properties or add new "
"ones. Be careful! Most properties have special meaning and "
"alter the image deployment behaviour. Press <HELP> to see more "
"information about image properties. Press <BACK> when done.",
height=18, width=MENU_WIDTH, choices=choices, menu_height=10,
ok_label="Edit", extra_button=1, extra_label="Add", cancel="Back",
help_button=1, title="Image Properties")
if code in (d.DIALOG_CANCEL, d.DIALOG_ESC):
return True
# Edit button
elif code == d.DIALOG_OK:
(code, answer) = d.inputbox("Please provide a new value for the "
"image property with name `%s':" %
choice,
init=session['metadata'][choice],
width=INPUTBOX_WIDTH)
if code not in (d.DIALOG_CANCEL, d.DIALOG_ESC):
value = answer.strip()
if len(value) == 0:
d.msgbox("Value cannot be empty!")
continue
else:
session['metadata'][choice] = value
# ADD button
elif code == d.DIALOG_EXTRA:
add_property(session)
elif code == 'help':
help_file = get_help_file("image_properties")
assert os.path.exists(help_file)
d.textbox(help_file, title="Image Properties", width=70, height=40)
def delete_properties(session):
d = session['dialog']
choices = []
for (key, val) in session['metadata'].items():
choices.append((key, "%s" % val, 0))
(code, to_delete) = d.checklist("Choose which properties to delete:",
choices=choices, width=CHECKBOX_WIDTH)
# If the user exits with ESC or CANCEL, the returned tag list is empty.
for i in to_delete:
del session['metadata'][i]
cnt = len(to_delete)
if cnt > 0:
d.msgbox("%d image properties were deleted." % cnt, width=MSGBOX_WIDTH)
return True
else:
return False
def exclude_tasks(session):
d = session['dialog']
index = 0
displayed_index = 1
choices = []
mapping = {}
if 'excluded_tasks' not in session:
session['excluded_tasks'] = []
if -1 in session['excluded_tasks']:
if not d.yesno("Image deployment configuration is disabled. "
"Do you wish to enable it?", width=YESNO_WIDTH):
session['excluded_tasks'].remove(-1)
else:
return False
for (msg, task, osfamily) in CONFIGURATION_TASKS:
if session['metadata']['OSFAMILY'] in osfamily:
checked = 1 if index in session['excluded_tasks'] else 0
choices.append((str(displayed_index), msg, checked))
mapping[displayed_index] = index
displayed_index += 1
index += 1
while 1:
(code, tags) = d.checklist(
text="Please choose which configuration tasks you would like to "
"prevent from running during image deployment. "
"Press <No Config> to supress any configuration. "
"Press <Help> for more help on the image deployment "
"configuration tasks.",
choices=choices, height=19, list_height=8, width=CHECKBOX_WIDTH,
help_button=1, extra_button=1, extra_label="No Config",
title="Exclude Configuration Tasks")
if code in (d.DIALOG_CANCEL, d.DIALOG_ESC):
return False
elif code == d.DIALOG_HELP:
help_file = get_help_file("configuration_tasks")
assert os.path.exists(help_file)
d.textbox(help_file, title="Configuration Tasks",
width=70, height=40)
# No Config button
elif code == d.DIALOG_EXTRA:
session['excluded_tasks'] = [-1]
session['task_metadata'] = ["EXCLUDE_ALL_TASKS"]
break
elif code == d.DIALOG_OK:
session['excluded_tasks'] = []
for tag in tags:
session['excluded_tasks'].append(mapping[int(tag)])
exclude_metadata = []
for task in session['excluded_tasks']:
exclude_metadata.extend(CONFIGURATION_TASKS[task][1])
session['task_metadata'] = map(lambda x: "EXCLUDE_TASK_%s" % x,
exclude_metadata)
break
return True
def sysprep(session):
d = session['dialog']
image_os = session['image_os']
# Is the image already shrinked?
if 'shrinked' in session and session['shrinked']:
msg = "It seems you have shrinked the image. Running system " \
"preparation tasks on a shrinked image is dangerous."
if d.yesno("%s\n\nDo you really want to continue?" % msg,
width=YESNO_WIDTH, defaultno=1):
return
wrapper = textwrap.TextWrapper(width=65)
help_title = "System Preperation Tasks"
sysprep_help = "%s\n%s\n\n" % (help_title, '=' * len(help_title))
if 'exec_syspreps' not in session:
session['exec_syspreps'] = []
all_syspreps = image_os.list_syspreps()
# Only give the user the choice between syspreps that have not ran yet
syspreps = [s for s in all_syspreps if s not in session['exec_syspreps']]
if len(syspreps) == 0:
d.msgbox("No system preparation task available to run!",
title="System Preperation", width=MSGBOX_WIDTH)
return
while 1:
choices = []
index = 0
for sysprep in syspreps:
name, descr = image_os.sysprep_info(sysprep)
display_name = name.replace('-', ' ').capitalize()
sysprep_help += "%s\n" % display_name
sysprep_help += "%s\n" % ('-' * len(display_name))
sysprep_help += "%s\n\n" % wrapper.fill(" ".join(descr.split()))
enabled = 1 if sysprep.enabled else 0
choices.append((str(index + 1), display_name, enabled))
index += 1
(code, tags) = d.checklist(
"Please choose which system preperation tasks you would like to "
"run on the image. Press <Help> to see details about the system "
"preperation tasks.", title="Run system preperation tasks",
choices=choices, width=70, ok_label="Run", help_button=1)
if code in (d.DIALOG_CANCEL, d.DIALOG_ESC):
return False
elif code == d.DIALOG_HELP:
d.scrollbox(sysprep_help, width=HELP_WIDTH)
elif code == d.DIALOG_OK:
# Enable selected syspreps and disable the rest
for i in range(len(syspreps)):
if str(i + 1) in tags:
image_os.enable_sysprep(syspreps[i])
session['exec_syspreps'].append(syspreps[i])
else:
image_os.disable_sysprep(syspreps[i])
out = InfoBoxOutput(d, "Image Configuration")
try:
dev = session['device']
dev.out = out
dev.mount(readonly=False)
try:
# The checksum is invalid. We have mounted the image rw
if 'checksum' in session:
del session['checksum']
# Monitor the metadata changes during syspreps
with metadata_monitor(session, image_os.meta):
image_os.out = out
image_os.do_sysprep()
image_os.out.finalize()
# Disable syspreps that have ran
for sysprep in session['exec_syspreps']:
image_os.disable_sysprep(sysprep)
finally:
dev.umount()
finally:
out.cleanup()
break
return True
def shrink(session):
d = session['dialog']
dev = session['device']
shrinked = 'shrinked' in session and session['shrinked']
if shrinked:
d.msgbox("The image is already shrinked!", title="Image Shrinking",
width=MSGBOX_WIDTH)
return True
msg = "This operation will shrink the last partition of the image to " \
"reduce the total image size. If the last partition is a swap " \
"partition, then this partition is removed and the partition " \
"before that is shrinked. The removed swap partition will be " \
"recreated during image deployment."
if not d.yesno("%s\n\nDo you want to continue?" % msg, width=70,
height=12, title="Image Shrinking"):
with metadata_monitor(session, dev.meta):
dev.out = InfoBoxOutput(d, "Image Shrinking", height=4)
dev.shrink()
dev.out.finalize()
session['shrinked'] = True
update_background_title(session)
else:
return False
return True
def customization_menu(session):
d = session['dialog']
choices = [("Sysprep", "Run various image preperation tasks"),
("Shrink", "Shrink image"),
("View/Modify", "View/Modify image properties"),
("Delete", "Delete image properties"),
("Exclude", "Exclude various deployment tasks from running")]
default_item = 0
actions = {"Sysprep": sysprep,
"Shrink": shrink,
"View/Modify": modify_properties,
"Delete": delete_properties,
"Exclude": exclude_tasks}
while 1:
(code, choice) = d.menu(
text="Choose one of the following or press <Back> to exit.",
width=MENU_WIDTH, choices=choices, cancel="Back", height=13,
menu_height=len(choices), default_item=choices[default_item][0],
title="Image Customization Menu")
if code in (d.DIALOG_CANCEL, d.DIALOG_ESC):
break
elif choice in actions:
default_item = [entry[0] for entry in choices].index(choice)
if actions[choice](session):
default_item = (default_item + 1) % len(choices)
def main_menu(session):
d = session['dialog']
dev = session['device']
update_background_title(session)
choices = [("Customize", "Customize image & ~okeanos deployment options"),
("Register", "Register image to ~okeanos"),
("Extract", "Dump image to local file system"),
("Reset", "Reset everything and start over again"),
("Help", "Get help for using snf-image-creator")]
default_item = "Customize"
actions = {"Customize": customization_menu, "Register": kamaki_menu,
"Extract": extract_image}
while 1:
(code, choice) = d.menu(
text="Choose one of the following or press <Exit> to exit.",
width=MENU_WIDTH, choices=choices, cancel="Exit", height=13,
default_item=default_item, menu_height=len(choices),
title="Image Creator for ~okeanos (snf-image-creator version %s)" %
version)
if code in (d.DIALOG_CANCEL, d.DIALOG_ESC):
if confirm_exit(d):
break
elif choice == "Reset":
if confirm_reset(d):
d.infobox("Resetting snf-image-creator. Please wait...",
width=INFOBOX_WIDTH)
raise Reset
elif choice in actions:
actions[choice](session)
def select_file(d, media):
root = os.sep
while 1:
if media is not None:
if not os.path.exists(media):
d.msgbox("The file `%s' you choose does not exist." % media,
width=MSGBOX_WIDTH)
else:
break
(code, media) = d.fselect(root, 10, 50,
title="Please select input media")
if code in (d.DIALOG_CANCEL, d.DIALOG_ESC):
if confirm_exit(d, "You canceled the media selection dialog box."):
sys.exit(0)
else:
media = None
continue
return media
def image_creator(d):
usage = "Usage: %prog [options] [<input_media>]"
parser = optparse.OptionParser(version=version, usage=usage)
options, args = parser.parse_args(sys.argv[1:])
if len(args) > 1:
parser.error("Wrong numver of arguments")
d.setBackgroundTitle('snf-image-creator')
if os.geteuid() != 0:
raise FatalError("You must run %s as root" % parser.get_prog_name())
media = select_file(d, args[0] if len(args) == 1 else None)
out = GaugeOutput(d, "Initialization", "Initializing...")
disk = Disk(media, out)
def signal_handler(signum, frame):
out.cleanup()
disk.cleanup()
signal.signal(signal.SIGINT, signal_handler)
try:
snapshot = disk.snapshot()
dev = disk.get_device(snapshot)
metadata = {}
for (key, value) in dev.meta.items():
metadata[str(key)] = str(value)
dev.mount(readonly=True)
out.output("Collecting image metadata...")
cls = os_cls(dev.distro, dev.ostype)
image_os = cls(dev.root, dev.g, out)
dev.umount()
for (key, value) in image_os.meta.items():
metadata[str(key)] = str(value)
out.success("done")
out.cleanup()
# Make sure the signal handler does not call out.cleanup again
def dummy(self):
pass
out.cleanup = type(GaugeOutput.cleanup)(dummy, out, GaugeOutput)
session = {"dialog": d,
"disk": disk,
"snapshot": snapshot,
"device": dev,
"image_os": image_os,
"metadata": metadata}
msg = "snf-image-creator detected a %s system on the input media. " \
"Would you like to run a wizards to assists you through the " \
"image creation process?\n\nChoose <Yes> to run the wizard, " \
"<No> to run the snf-image-creator in expert mode or press " \
"ESC to quit the program." \
% (dev.ostype if dev.ostype == dev.distro else "%s (%s)" %
(dev.ostype, dev.distro))
update_background_title(session)
while True:
code = d.yesno(msg, width=YESNO_WIDTH, height=12)
if code == d.DIALOG_OK:
if wizard(session):
break
elif code == d.DIALOG_CANCEL:
main_menu(session)
break
if confirm_exit(d):
break
d.infobox("Thank you for using snf-image-creator. Bye", width=53)
finally:
disk.cleanup()
return 0
def main():
d = dialog.Dialog(dialog="dialog")
# Add extra button in dialog library
dialog._common_args_syntax["extra_button"] = \
lambda enable: dialog._simple_option("--extra-button", enable)
dialog._common_args_syntax["extra_label"] = \
lambda string: ("--extra-label", string)
while 1:
try:
try:
ret = image_creator(d)
sys.exit(ret)
except FatalError as e:
msg = textwrap.fill(str(e), width=70)
d.infobox(msg, width=INFOBOX_WIDTH, title="Fatal Error")
sys.exit(1)
except Reset:
continue
# vim: set sta sts=4 shiftwidth=4 sw=4 et ai :