+#!/usr/bin/env python
+
# Copyright 2011 GRNET S.A. All rights reserved.
#
# Redistribution and use in source and binary forms, with or
# or implied, of GRNET S.A.
from image_creator import get_os_class
+from image_creator import __version__ as version
+from image_creator import FatalError
from image_creator.disk import Disk
+from image_creator.util import get_command, error, progress_generator, success
+from clint.textui import puts, indent
+from sendfile import sendfile
+
import sys
import os
+import optparse
+
+dd = get_command('dd')
+
+
+def check_writable_dir(option, opt_str, value, parser):
+ dirname = os.path.dirname(value)
+ name = os.path.basename(value)
+ if dirname and not os.path.isdir(dirname):
+ parser.error("`%s' is not an existing directory" % dirname)
+
+ if not name:
+ parser.error("`%s' is not a valid file name" % dirname)
+
+ setattr(parser.values, option.dest, value)
+
+
+def parse_options(input_args):
+ usage = "Usage: %prog [options] <input_media>"
+ parser = optparse.OptionParser(version=version, usage=usage)
+
+ parser.add_option("-f", "--force", dest="force", default=False,
+ action="store_true", help="Overwrite output files if they exist")
+
+ parser.add_option("--no-cleanup", dest="cleanup", default=True,
+ help="Don't cleanup sensitive data before extracting the image",
+ action="store_false")
+
+ parser.add_option("--no-sysprep", dest="sysprep", default=True,
+ help="Don't perform system preperation before extracting the image",
+ action="store_false")
+
+ parser.add_option("--no-shrink", dest="shrink", default=True,
+ help="Don't shrink any partition before extracting the image",
+ action="store_false")
+
+ parser.add_option("-o", "--outfile", type="string", dest="outfile",
+ default=None, action="callback", callback=check_writable_dir,
+ help="Output image file",
+ metavar="FILE")
+
+ parser.add_option("-u", "--upload", dest="upload", default=False,
+ help="Upload image to a pithos repository using kamaki",
+ action="store_true")
+
+ parser.add_option("-r", "--register", dest="register", default=False,
+ help="Register image to okeanos using kamaki", action="store_true")
+
+ options, args = parser.parse_args(input_args)
+
+ if len(args) != 1:
+ parser.error('Wrong number of arguments')
+ options.source = args[0]
+ if not os.path.exists(options.source):
+ parser.error('input media is not accessible')
+
+ if options.register:
+ options.upload = True
+
+ if options.outfile is None and not options.upload:
+ parser.error('either outfile (-o) or upload (-u) must be set.')
+
+ return options
-def main():
- if len(sys.argv) != 3:
- sys.exit("Usage: %s <source> <output_file>" %
- os.path.basename(sys.argv[0]))
- source = sys.argv[1]
- dest = sys.argv[2]
- disk = Disk(source)
+def extract_image(device, outfile, size):
+ blocksize = 4194304 # 4MB
+ progress_size = (size + 1048575) // 1048576 # in MB
+ progressbar = progress_generator("Dumping image file: ",
+ progress_size)
+ source = open(device, "r")
+ try:
+ dest = open(outfile, "w")
+ try:
+ left = size
+ offset = 0
+ progressbar.next()
+ while left > 0:
+ length = min(left, blocksize)
+ sent = sendfile(dest.fileno(), source.fileno(), offset, length)
+ offset += sent
+ left -= sent
+ for i in range(4):
+ progressbar.next()
+ finally:
+ dest.close()
+ finally:
+ source.close()
+
+ success('Image file %s was successfully created' % outfile)
+
+
+def image_creator():
+ puts('snf-image-creator %s\n' % version)
+ options = parse_options(sys.argv[1:])
+
+ if os.geteuid() != 0:
+ raise FatalError("You must run %s as root" \
+ % os.path.basename(sys.argv[0]))
+
+ if not options.force:
+ for extension in ('', '.meta'):
+ filename = "%s%s" % (options.outfile, extension)
+ if os.path.exists(filename):
+ raise FatalError("Output file %s exists "
+ "(use --force to overwrite it)." % filename)
+
+ disk = Disk(options.source)
try:
dev = disk.get_device()
+ dev.mount()
+
osclass = get_os_class(dev.distro, dev.ostype)
image_os = osclass(dev.root, dev.g)
metadata = image_os.get_metadata()
- for key, val in metadata.iteritems():
- print "%s=%s" % (key,val)
+
+ if options.sysprep:
+ image_os.sysprep()
+
+ if options.cleanup:
+ image_os.data_cleanup()
+
+ dev.umount()
+
+ size = options.shrink and dev.shrink() or dev.size()
+ metadata['size'] = str(size // 2 ** 20)
+
+ if options.outfile is not None:
+ f = open('%s.%s' % (options.outfile, 'meta'), 'w')
+ try:
+ for key in metadata.keys():
+ f.write("%s=%s\n" % (key, metadata[key]))
+ finally:
+ f.close()
+
+ extract_image(dev.device, options.outfile, size)
finally:
+ puts('cleaning up...')
disk.cleanup()
+ return 0
+
+
+def main():
+ try:
+ ret = image_creator()
+ sys.exit(ret)
+ except FatalError as e:
+ error(e)
+ sys.exit(1)
+
+
if __name__ == '__main__':
main()
# vim: set sta sts=4 shiftwidth=4 sw=4 et ai :
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projects / snf-image-creator / blobdiff