112 lines
4.0 KiB
Python
112 lines
4.0 KiB
Python
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#!/usr/bin/env python -tt
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#
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# Copyright (c) 2011 Intel, Inc.
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#
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# This program is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by the Free
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# Software Foundation; version 2 of the License
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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# for more details.
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#
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# You should have received a copy of the GNU General Public License along
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# with this program; if not, write to the Free Software Foundation, Inc., 59
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# Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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import os
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import shutil
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from wic import msger
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from wic.utils import errors
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class _Plugin(object):
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class __metaclass__(type):
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def __init__(cls, name, bases, attrs):
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if not hasattr(cls, 'plugins'):
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cls.plugins = {}
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elif 'wic_plugin_type' in attrs:
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if attrs['wic_plugin_type'] not in cls.plugins:
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cls.plugins[attrs['wic_plugin_type']] = {}
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elif hasattr(cls, 'wic_plugin_type') and 'name' in attrs:
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cls.plugins[cls.wic_plugin_type][attrs['name']] = cls
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def show_plugins(cls):
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for cls in cls.plugins[cls.wic_plugin_type]:
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print cls
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def get_plugins(cls):
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return cls.plugins
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class ImagerPlugin(_Plugin):
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wic_plugin_type = "imager"
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class SourcePlugin(_Plugin):
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wic_plugin_type = "source"
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"""
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The methods that can be implemented by --source plugins.
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Any methods not implemented in a subclass inherit these.
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"""
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@classmethod
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def do_install_disk(self, disk, disk_name, cr, workdir, oe_builddir,
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bootimg_dir, kernel_dir, native_sysroot):
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"""
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Called after all partitions have been prepared and assembled into a
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disk image. This provides a hook to allow finalization of a
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disk image e.g. to write an MBR to it.
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"""
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msger.debug("SourcePlugin: do_install_disk: disk: %s" % disk_name)
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@classmethod
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def do_stage_partition(self, part, source_params, cr, cr_workdir,
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oe_builddir, bootimg_dir, kernel_dir,
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native_sysroot):
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"""
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Special content staging hook called before do_prepare_partition(),
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normally empty.
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Typically, a partition will just use the passed-in parame e.g
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straight bootimg_dir, etc, but in some cases, things need to
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be more tailored e.g. to use a deploy dir + /boot, etc. This
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hook allows those files to be staged in a customized fashion.
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Not that get_bitbake_var() allows you to acces non-standard
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variables that you might want to use for this.
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"""
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msger.debug("SourcePlugin: do_stage_partition: part: %s" % part)
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@classmethod
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def do_configure_partition(self, part, source_params, cr, cr_workdir,
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oe_builddir, bootimg_dir, kernel_dir,
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native_sysroot):
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"""
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Called before do_prepare_partition(), typically used to create
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custom configuration files for a partition, for example
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syslinux or grub config files.
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"""
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msger.debug("SourcePlugin: do_configure_partition: part: %s" % part)
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@classmethod
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def do_prepare_partition(self, part, source_params, cr, cr_workdir,
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oe_builddir, bootimg_dir, kernel_dir, rootfs_dir,
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native_sysroot):
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"""
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Called to do the actual content population for a partition i.e. it
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'prepares' the partition to be incorporated into the image.
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"""
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msger.debug("SourcePlugin: do_prepare_partition: part: %s" % part)
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def get_plugins(typen):
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ps = ImagerPlugin.get_plugins()
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if typen in ps:
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return ps[typen]
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else:
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return None
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__all__ = ['ImagerPlugin', 'SourcePlugin', 'get_plugins']
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