#!/usr/bin/env python
-
+# -*- coding: utf-8 -*-
+#
# Copyright 2012 GRNET S.A. All rights reserved.
#
# Redistribution and use in source and binary forms, with or
# interpreted as representing official policies, either expressed
# or implied, of GRNET S.A.
+"""This module is the entrance point for the dialog-based version of the
+snf-image-creator program. The main function will create a dialog where the
+user is asked if he wants to use the program in expert or wizard mode.
+"""
+
import dialog
import sys
import os
+import stat
import textwrap
import signal
import optparse
+import types
from image_creator import __version__ as version
from image_creator.util import FatalError
from image_creator.output.dialog import GaugeOutput
from image_creator.output.composite import CompositeOutput
from image_creator.disk import Disk
-from image_creator.os_type import os_cls
-from image_creator.dialog_wizard import wizard
+from image_creator.dialog_wizard import start_wizard
from image_creator.dialog_menu import main_menu
from image_creator.dialog_util import SMALL_WIDTH, WIDTH, confirm_exit, \
Reset, update_background_title
-def image_creator(d, media, out):
-
+def create_image(d, media, out, tmp):
+ """Create an image out of `media'"""
d.setBackgroundTitle('snf-image-creator')
gauge = GaugeOutput(d, "Initialization", "Initializing...")
out.add(gauge)
- disk = Disk(media, out)
+ disk = Disk(media, out, tmp)
def signal_handler(signum, frame):
gauge.cleanup()
signal.signal(signal.SIGTERM, signal_handler)
try:
snapshot = disk.snapshot()
- dev = disk.get_device(snapshot)
+ image = disk.get_image(snapshot)
+ out.output("Collecting image metadata ...")
metadata = {}
- for (key, value) in dev.meta.items():
+ for (key, value) in image.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():
+ for (key, value) in image.os.meta.items():
metadata[str(key)] = str(value)
out.success("done")
session = {"dialog": d,
"disk": disk,
- "snapshot": snapshot,
- "device": dev,
- "image_os": image_os,
+ "image": image,
"metadata": metadata}
+ if hasattr(image, "unsupported"):
+
+ session['excluded_tasks'] = [-1]
+ session['task_metadata'] = ["EXCLUDE_ALL_TASKS"]
+
+ msg = "The system on the input media is not supported." \
+ "\n\nReason: %s\n\n" \
+ "We highly recommend not to create an image out of this, " \
+ "since the image won't be cleaned up and you will not be " \
+ "able to configure it during the deployment. Press <YES> if " \
+ "you still want to continue with the image creation process." \
+ % image.unsupported
+
+ if not d.yesno(msg, width=WIDTH, defaultno=1, height=12):
+ main_menu(session)
+
+ d.infobox("Thank you for using snf-image-creator. Bye", width=53)
+ return 0
+
msg = "snf-image-creator detected a %s system on the input media. " \
"Would you like to run a wizard to assist you through the " \
"image creation process?\n\nChoose <Wizard> to run the wizard," \
" <Expert> 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))
+ % (image.ostype if image.ostype == image.distro or
+ image.distro == "unknown" else "%s (%s)" %
+ (image.ostype, image.distro))
update_background_title(session)
code = d.yesno(msg, width=WIDTH, height=12, yes_label="Wizard",
no_label="Expert")
if code == d.DIALOG_OK:
- if wizard(session):
+ if start_wizard(session):
break
elif code == d.DIALOG_CANCEL:
main_menu(session)
def select_file(d, media):
- root = os.sep
+ """Select a media file"""
+ if media == '/':
+ return '/'
+
+ default = os.getcwd() + 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=SMALL_WIDTH)
else:
- break
+ mode = os.stat(media).st_mode
+ if not stat.S_ISDIR(mode):
+ break
+ default = media
- (code, media) = d.fselect(root, 10, 50,
- title="Please select input media")
+ (code, media) = d.fselect(default, 10, 60, extra_button=1,
+ title="Please select an input media.",
+ extra_label="Bundle Host")
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
+ elif code == d.DIALOG_EXTRA:
+ return '/'
return media
+def _dialog_form(self, text, height=20, width=60, form_height=15, fields=[],
+ **kwargs):
+ """Display a form box.
+
+ fields is in the form: [(label1, item1, item_length1), ...]
+ """
+
+ cmd = ["--form", text, str(height), str(width), str(form_height)]
+
+ label_len = 0
+ for field in fields:
+ if len(field[0]) > label_len:
+ label_len = len(field[0])
+
+ input_len = width - label_len - 1
+
+ line = 1
+ for field in fields:
+ label = field[0]
+ item = field[1]
+ item_len = field[2]
+ cmd.extend((label, str(line), str(1), item, str(line),
+ str(label_len + 1), str(input_len), str(item_len)))
+ line += 1
+
+ code, output = self._perform(*(cmd,), **kwargs)
+
+ if not output:
+ return (code, [])
+
+ return (code, output.splitlines())
+
+
def main():
+ # In OpenSUSE dialog is buggy under xterm
+ if os.environ['TERM'] == 'xterm':
+ os.environ['TERM'] = 'linux'
+
d = dialog.Dialog(dialog="dialog")
# Add extra button in dialog library
dialog._common_args_syntax["no_label"] = \
lambda string: ("--no-label", string)
+ # Monkey-patch pythondialog to include support for form dialog boxes
+ if not hasattr(dialog, 'form'):
+ d.form = types.MethodType(_dialog_form, d)
+
usage = "Usage: %prog [options] [<input_media>]"
parser = optparse.OptionParser(version=version, usage=usage)
parser.add_option("-l", "--logfile", type="string", dest="logfile",
default=None, help="log all messages to FILE",
metavar="FILE")
+ parser.add_option("--tmpdir", type="string", dest="tmp", default=None,
+ help="create large temporary image files under DIR",
+ metavar="DIR")
options, args = parser.parse_args(sys.argv[1:])
raise FatalError("You must run %s as root" %
parser.get_prog_name())
- media = select_file(d, args[0] if len(args) == 1 else None)
+ if options.tmp is not None and not os.path.isdir(options.tmp):
+ raise FatalError("The directory `%s' specified with --tmpdir is "
+ "not valid" % options.tmp)
logfile = None
if options.logfile is not None:
raise FatalError(
"Unable to open logfile `%s' for writing. Reason: %s" %
(options.logfile, e.strerror))
+
+ media = select_file(d, args[0] if len(args) == 1 else None)
+
try:
log = SimpleOutput(False, logfile) if logfile is not None \
else Output()
while 1:
try:
out = CompositeOutput([log])
- out.output("Starting %s v%s..." %
+ out.output("Starting %s v%s ..." %
(parser.get_prog_name(), version))
- ret = image_creator(d, media, out)
+ ret = create_image(d, media, out, options.tmp)
sys.exit(ret)
except Reset:
- log.output("Resetting everything...")
+ log.output("Resetting everything ...")
continue
finally:
if logfile is not None:
projects / snf-image-creator / blobdiff