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#!/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 os
from image_creator.output.dialog import GaugeOutput
from image_creator.util import MD5
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SMALL_WIDTH = 60
WIDTH = 70
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 confirm_exit(d, msg=''):
return not d.yesno("%s Do you want to exit?" % msg, width=SMALL_WIDTH)
def confirm_reset(d):
return not d.yesno("Are you sure you want to reset everything?",
width=SMALL_WIDTH, defaultno=1)
class Reset(Exception):
pass
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'
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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=SMALL_WIDTH)
continue
if os.path.isdir("%s.md5sum" % path):
d.msgbox("Can't overwrite directory `%s.md5sum'" % path,
width=SMALL_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=SMALL_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=SMALL_WIDTH):
continue
gauge = GaugeOutput(d, "Image Extraction", "Extracting image...")
try:
dev = session['device']
out = dev.out
out.add(gauge)
try:
if "checksum" not in session:
size = dev.size
md5 = MD5(out)
session['checksum'] = md5.compute(session['snapshot'],
size)
# Extract image file
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.remove(gauge)
finally:
gauge.cleanup()
d.msgbox("Image file `%s' was successfully extracted!" % path,
width=SMALL_WIDTH)
break
return True
# vim: set sta sts=4 shiftwidth=4 sw=4 et ai :