2 # -*- coding: utf-8 -*-
4 # Copyright 2012 GRNET S.A. All rights reserved.
6 # Redistribution and use in source and binary forms, with or
7 # without modification, are permitted provided that the following
10 # 1. Redistributions of source code must retain the above
11 # copyright notice, this list of conditions and the following
14 # 2. Redistributions in binary form must reproduce the above
15 # copyright notice, this list of conditions and the following
16 # disclaimer in the documentation and/or other materials
17 # provided with the distribution.
19 # THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
20 # OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
21 # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
23 # CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
26 # USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
27 # AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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33 # documentation are those of the authors and should not be
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35 # or implied, of GRNET S.A.
37 """This module is the entrance point for the dialog-based version of the
38 snf-image-creator program. The main function will create a dialog where the
39 user is asked if he wants to use the program in expert or wizard mode.
50 from image_creator import __version__ as version
51 from image_creator.util import FatalError
52 from image_creator.output import Output
53 from image_creator.output.cli import SimpleOutput
54 from image_creator.output.dialog import GaugeOutput
55 from image_creator.output.composite import CompositeOutput
56 from image_creator.disk import Disk
57 from image_creator.dialog_wizard import start_wizard
58 from image_creator.dialog_menu import main_menu
59 from image_creator.dialog_util import SMALL_WIDTH, WIDTH, confirm_exit, \
60 Reset, update_background_title
63 def create_image(d, media, out, tmp):
64 """Create an image out of `media'"""
65 d.setBackgroundTitle('snf-image-creator')
67 gauge = GaugeOutput(d, "Initialization", "Initializing...")
69 disk = Disk(media, out, tmp)
71 def signal_handler(signum, frame):
75 signal.signal(signal.SIGINT, signal_handler)
76 signal.signal(signal.SIGTERM, signal_handler)
78 snapshot = disk.snapshot()
79 image = disk.get_image(snapshot)
81 out.output("Collecting image metadata ...")
83 for (key, value) in image.meta.items():
84 metadata[str(key)] = str(value)
86 for (key, value) in image.os.meta.items():
87 metadata[str(key)] = str(value)
93 # Make sure the signal handler does not call gauge.cleanup again
96 gauge.cleanup = type(GaugeOutput.cleanup)(dummy, gauge, GaugeOutput)
98 session = {"dialog": d,
101 "metadata": metadata}
103 msg = "snf-image-creator detected a %s system on the input media. " \
104 "Would you like to run a wizard to assist you through the " \
105 "image creation process?\n\nChoose <Wizard> to run the wizard," \
106 " <Expert> to run the snf-image-creator in expert mode or " \
107 "press ESC to quit the program." \
108 % (image.ostype if image.ostype == image.distro or
109 image.distro == "unknown" else "%s (%s)" %
110 (image.ostype, image.distro))
112 update_background_title(session)
115 code = d.yesno(msg, width=WIDTH, height=12, yes_label="Wizard",
117 if code == d.DIALOG_OK:
118 if start_wizard(session):
120 elif code == d.DIALOG_CANCEL:
127 d.infobox("Thank you for using snf-image-creator. Bye", width=53)
134 def select_file(d, media):
135 """Select a media file"""
139 default = os.getcwd() + os.sep
141 if media is not None:
142 if not os.path.exists(media):
143 d.msgbox("The file `%s' you choose does not exist." % media,
146 mode = os.stat(media).st_mode
147 if not stat.S_ISDIR(mode):
151 (code, media) = d.fselect(default, 10, 60, extra_button=1,
152 title="Please select an input media.",
153 extra_label="Bundle Host")
154 if code in (d.DIALOG_CANCEL, d.DIALOG_ESC):
155 if confirm_exit(d, "You canceled the media selection dialog box."):
160 elif code == d.DIALOG_EXTRA:
168 d = dialog.Dialog(dialog="dialog")
170 # Add extra button in dialog library
171 dialog._common_args_syntax["extra_button"] = \
172 lambda enable: dialog._simple_option("--extra-button", enable)
174 dialog._common_args_syntax["extra_label"] = \
175 lambda string: ("--extra-label", string)
177 # Allow yes-no label overwriting
178 dialog._common_args_syntax["yes_label"] = \
179 lambda string: ("--yes-label", string)
181 dialog._common_args_syntax["no_label"] = \
182 lambda string: ("--no-label", string)
184 usage = "Usage: %prog [options] [<input_media>]"
185 parser = optparse.OptionParser(version=version, usage=usage)
186 parser.add_option("-l", "--logfile", type="string", dest="logfile",
187 default=None, help="log all messages to FILE",
189 parser.add_option("--tmpdir", type="string", dest="tmp", default=None,
190 help="create large temporary image files under DIR",
193 options, args = parser.parse_args(sys.argv[1:])
196 parser.error("Wrong number of arguments")
198 d.setBackgroundTitle('snf-image-creator')
201 if os.geteuid() != 0:
202 raise FatalError("You must run %s as root" %
203 parser.get_prog_name())
205 if options.tmp is not None and not os.path.isdir(options.tmp):
206 raise FatalError("The directory `%s' specified with --tmpdir is "
207 "not valid" % options.tmp)
210 if options.logfile is not None:
212 logfile = open(options.logfile, 'w')
215 "Unable to open logfile `%s' for writing. Reason: %s" %
216 (options.logfile, e.strerror))
218 media = select_file(d, args[0] if len(args) == 1 else None)
221 log = SimpleOutput(False, logfile) if logfile is not None \
225 out = CompositeOutput([log])
226 out.output("Starting %s v%s ..." %
227 (parser.get_prog_name(), version))
228 ret = create_image(d, media, out, options.tmp)
231 log.output("Resetting everything ...")
234 if logfile is not None:
236 except FatalError as e:
237 msg = textwrap.fill(str(e), width=WIDTH)
238 d.infobox(msg, width=WIDTH, title="Fatal Error")
241 # vim: set sta sts=4 shiftwidth=4 sw=4 et ai :