-#!/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.
+
+from image_creator.util import FatalError
+
+import textwrap
import re
+def os_cls(distro, osfamily):
+ module = None
+ classname = None
+ try:
+ module = __import__("image_creator.os_type.%s" % distro,
+ fromlist=['image_creator.os_type'])
+ classname = distro.capitalize()
+ except ImportError:
+ module = __import__("image_creator.os_type.%s" % osfamily,
+ fromlist=['image_creator.os_type'])
+ classname = osfamily.capitalize()
+
+ return getattr(module, classname)
+
+
def add_prefix(target):
def wrapper(self, *args):
prefix = args[0]
return wrapper
+def sysprep(enabled=True):
+ def wrapper(func):
+ func.sysprep = True
+ func.enabled = enabled
+ return func
+ return wrapper
+
+
class OSBase(object):
"""Basic operating system class"""
- def __init__(self, rootdev, ghandler):
+
+ def __init__(self, rootdev, ghandler, output):
self.root = rootdev
self.g = ghandler
+ self.out = output
+
+ # Collect metadata about the OS
+ self.meta = {}
+ self.meta['ROOT_PARTITION'] = "%d" % self.g.part_to_partnum(self.root)
+ self.meta['OSFAMILY'] = self.g.inspect_get_type(self.root)
+ self.meta['OS'] = self.g.inspect_get_distro(self.root)
+ self.meta['DESCRIPTION'] = self.g.inspect_get_product_name(self.root)
+
+ def _is_sysprep(self, obj):
+ return getattr(obj, 'sysprep', False) and callable(obj)
+
+ def list_syspreps(self):
+
+ objs = [getattr(self, name) for name in dir(self)
+ if not name.startswith('_')]
+
+ return [x for x in objs if self._is_sysprep(x)]
+
+ def sysprep_info(self, obj):
+ assert self._is_sysprep(obj), "Object is not a sysprep"
+
+ return (obj.__name__.replace('_', '-'), textwrap.dedent(obj.__doc__))
+
+ def get_sysprep_by_name(self, name):
+ """Returns the sysprep object with the given name"""
+ error_msg = "Syprep operation %s does not exist for %s" % \
+ (name, self.__class__.__name__)
+
+ method_name = name.replace('-', '_')
+ method = None
+ try:
+ method = getattr(self, method_name)
+ except AttributeError:
+ raise FatalError(error_msg)
+
+ if not self._is_sysprep(method):
+ raise FatalError(error_msg)
+
+ return method
+
+ def enable_sysprep(self, obj):
+ """Enable a system preparation operation"""
+ setattr(obj.im_func, 'enabled', True)
+
+ def disable_sysprep(self, obj):
+ """Disable a system preparation operation"""
+ setattr(obj.im_func, 'enabled', False)
+
+ def print_syspreps(self):
+ """Print enabled and disabled system preparation operations."""
+
+ syspreps = self.list_syspreps()
+ enabled = filter(lambda x: x.enabled, syspreps)
+ disabled = filter(lambda x: not x.enabled, syspreps)
+
+ wrapper = textwrap.TextWrapper()
+ wrapper.subsequent_indent = '\t'
+ wrapper.initial_indent = '\t'
+ wrapper.width = 72
+
+ self.out.output("Enabled system preparation operations:")
+ if len(enabled) == 0:
+ self.out.output("(none)")
+ else:
+ for sysprep in enabled:
+ name = sysprep.__name__.replace('_', '-')
+ descr = wrapper.fill(textwrap.dedent(sysprep.__doc__))
+ self.out.output(' %s:\n%s\n' % (name, descr))
+
+ self.out.output("Disabled system preparation operations:")
+ if len(disabled) == 0:
+ self.out.output("(none)")
+ else:
+ for sysprep in disabled:
+ name = sysprep.__name__.replace('_', '-')
+ descr = wrapper.fill(textwrap.dedent(sysprep.__doc__))
+ self.out.output(' %s:\n%s\n' % (name, descr))
@add_prefix
def ls(self, directory):
if has_ftype(f, ftype):
action(full_path)
- def get_metadata(self):
- """Returnes some descriptive metadata of the OS."""
- meta = {}
- meta["OSFAMILY"] = self.g.inspect_get_type(self.root)
- meta["OS"] = self.g.inspect_get_distro(self.root)
- meta["description"] = self.g.inspect_get_product_name(self.root)
+ def do_sysprep(self):
+ """Prepere system for image creation."""
+
+ self.out.output('Preparing system for image creation:')
- return meta
+ tasks = self.list_syspreps()
+ enabled = filter(lambda x: x.enabled, tasks)
- def data_cleanup(self):
- """Cleanup sesitive data out of the OS image."""
- raise NotImplementedError
+ size = len(enabled)
+ cnt = 0
+ for task in enabled:
+ cnt += 1
+ self.out.output(('(%d/%d)' % (cnt, size)).ljust(7), False)
+ task()
+ self.out.output()
# vim: set sta sts=4 shiftwidth=4 sw=4 et ai :
projects / snf-image-creator / blobdiff