1# 2# SPDX-License-Identifier: GPL-2.0-only 3# 4 5import logging 6import os 7 8from wic import WicError 9from wic.pluginbase import SourcePlugin 10from wic.misc import exec_cmd, get_bitbake_var 11from wic.filemap import sparse_copy 12 13logger = logging.getLogger('wic') 14 15class RawCopyPlugin(SourcePlugin): 16 """ 17 Populate partition content from raw image file. 18 """ 19 20 name = 'rawcopy' 21 22 @staticmethod 23 def do_image_label(fstype, dst, label): 24 if fstype.startswith('ext'): 25 cmd = 'tune2fs -L %s %s' % (label, dst) 26 elif fstype in ('msdos', 'vfat'): 27 cmd = 'dosfslabel %s %s' % (dst, label) 28 elif fstype == 'btrfs': 29 cmd = 'btrfs filesystem label %s %s' % (dst, label) 30 elif fstype == 'swap': 31 cmd = 'mkswap -L %s %s' % (label, dst) 32 elif fstype in ('squashfs', 'erofs'): 33 raise WicError("It's not possible to update a %s " 34 "filesystem label '%s'" % (fstype, label)) 35 else: 36 raise WicError("Cannot update filesystem label: " 37 "Unknown fstype: '%s'" % (fstype)) 38 39 exec_cmd(cmd) 40 41 @classmethod 42 def do_prepare_partition(cls, part, source_params, cr, cr_workdir, 43 oe_builddir, bootimg_dir, kernel_dir, 44 rootfs_dir, native_sysroot): 45 """ 46 Called to do the actual content population for a partition i.e. it 47 'prepares' the partition to be incorporated into the image. 48 """ 49 if not kernel_dir: 50 kernel_dir = get_bitbake_var("DEPLOY_DIR_IMAGE") 51 if not kernel_dir: 52 raise WicError("Couldn't find DEPLOY_DIR_IMAGE, exiting") 53 54 logger.debug('Kernel dir: %s', kernel_dir) 55 56 if 'file' not in source_params: 57 raise WicError("No file specified") 58 59 src = os.path.join(kernel_dir, source_params['file']) 60 dst = os.path.join(cr_workdir, "%s.%s" % (os.path.basename(source_params['file']), part.lineno)) 61 62 if not os.path.exists(os.path.dirname(dst)): 63 os.makedirs(os.path.dirname(dst)) 64 65 if 'skip' in source_params: 66 sparse_copy(src, dst, skip=int(source_params['skip'])) 67 else: 68 sparse_copy(src, dst) 69 70 # get the size in the right units for kickstart (kB) 71 du_cmd = "du -Lbks %s" % dst 72 out = exec_cmd(du_cmd) 73 filesize = int(out.split()[0]) 74 75 if filesize > part.size: 76 part.size = filesize 77 78 if part.label: 79 RawCopyPlugin.do_image_label(part.fstype, dst, part.label) 80 81 part.source_file = dst 82