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wic: rawcopy: support skipping

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Add support for skipping the beginning of a file with the rawcopy
plugin.

(From OE-Core rev: 89db37c85ac0d0035dbeb9643d7802ca28681e76)

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Alexandre Belloni 2015-03-01 13:54:16 +01:00 committed by Richard Purdie
parent 5e2dd63d2b
commit 1aa32a115a
1 changed files with 9 additions and 2 deletions
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11
scripts/lib/wic/plugins/source/rawcopy.py
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@ -64,14 +64,21 @@ class RawCopyPlugin(SourcePlugin):
return
src = os.path.join(bootimg_dir, source_params['file'])
dst = src
if ('skip' in source_params):
dst = os.path.join(cr_workdir, source_params['file'])
dd_cmd = "dd if=%s of=%s ibs=%s skip=1 conv=notrunc" % \
(src, dst, source_params['skip'])
exec_cmd(dd_cmd)
# get the size in the right units for kickstart (kB)
du_cmd = "du -Lbks %s" % src
du_cmd = "du -Lbks %s" % dst
out = exec_cmd(du_cmd)
filesize = out.split()[0]
if filesize > part.size:
part.size = filesize
part.source_file = src
part.source_file = dst