1# ex:ts=4:sw=4:sts=4:et 2# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*- 3# 4# This program is free software; you can redistribute it and/or modify 5# it under the terms of the GNU General Public License version 2 as 6# published by the Free Software Foundation. 7# 8# This program is distributed in the hope that it will be useful, 9# but WITHOUT ANY WARRANTY; without even the implied warranty of 10# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 11# GNU General Public License for more details. 12# 13# You should have received a copy of the GNU General Public License along 14# with this program; if not, write to the Free Software Foundation, Inc., 15# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. 16# 17 18import logging 19import os 20 21from wic import WicError 22from wic.pluginbase import SourcePlugin 23from wic.misc import exec_cmd, get_bitbake_var 24from wic.filemap import sparse_copy 25 26logger = logging.getLogger('wic') 27 28class RawCopyPlugin(SourcePlugin): 29 """ 30 Populate partition content from raw image file. 31 """ 32 33 name = 'rawcopy' 34 35 @staticmethod 36 def do_image_label(fstype, dst, label): 37 if fstype.startswith('ext'): 38 cmd = 'tune2fs -L %s %s' % (label, dst) 39 elif fstype in ('msdos', 'vfat'): 40 cmd = 'dosfslabel %s %s' % (dst, label) 41 elif fstype == 'btrfs': 42 cmd = 'btrfs filesystem label %s %s' % (dst, label) 43 elif fstype == 'swap': 44 cmd = 'mkswap -L %s %s' % (label, dst) 45 elif fstype == 'squashfs': 46 raise WicError("It's not possible to update a squashfs " 47 "filesystem label '%s'" % (label)) 48 else: 49 raise WicError("Cannot update filesystem label: " 50 "Unknown fstype: '%s'" % (fstype)) 51 52 exec_cmd(cmd) 53 54 @classmethod 55 def do_prepare_partition(cls, part, source_params, cr, cr_workdir, 56 oe_builddir, bootimg_dir, kernel_dir, 57 rootfs_dir, native_sysroot): 58 """ 59 Called to do the actual content population for a partition i.e. it 60 'prepares' the partition to be incorporated into the image. 61 """ 62 if not kernel_dir: 63 kernel_dir = get_bitbake_var("DEPLOY_DIR_IMAGE") 64 if not kernel_dir: 65 raise WicError("Couldn't find DEPLOY_DIR_IMAGE, exiting") 66 67 logger.debug('Kernel dir: %s', kernel_dir) 68 69 if 'file' not in source_params: 70 raise WicError("No file specified") 71 72 src = os.path.join(kernel_dir, source_params['file']) 73 dst = os.path.join(cr_workdir, "%s.%s" % (source_params['file'], part.lineno)) 74 75 if 'skip' in source_params: 76 sparse_copy(src, dst, skip=int(source_params['skip'])) 77 else: 78 sparse_copy(src, dst) 79 80 # get the size in the right units for kickstart (kB) 81 du_cmd = "du -Lbks %s" % dst 82 out = exec_cmd(du_cmd) 83 filesize = int(out.split()[0]) 84 85 if filesize > part.size: 86 part.size = filesize 87 88 if part.label: 89 RawCopyPlugin.do_image_label(part.fstype, dst, part.label) 90 91 part.source_file = dst 92