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common/xfs: Check if write supports [-c|-d] option in xfs_db

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Make sure _scratch_xfs_set_metadata_field() can be used on an
old xfsprogs-dev(e.g. v3.1.1).

The "-d" option was introduced since xfsprogs-dev v4.7.0 by commit
86769b3 ("xfs_db: allow recalculating CRCs on invalid metadata").

The special argument "--" is only used to end option-scanning
in getopt().  getopt() was introduced since xfsprogs-dev v3.2.3 by
commit c9f5e3d ("xfs_db: Allow writes of corrupted data")'.

Signed-off-by: xiao yang <yangx.jy@cn.fujitsu.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Eryu Guan <eguan@redhat.com>
This commit is contained in:
xiao yang
2018-01-16 15:26:55 +08:00
committed by Eryu Guan
parent 1ee97207dc
commit e33b0351da
1 changed files with 5 additions and 2 deletions
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common/xfs
+5 -2
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@@ -658,8 +658,11 @@ _scratch_xfs_set_metadata_field()
for arg in "$@"; do
cmds+=("-c" "${arg}")
done
_scratch_xfs_db -x "${cmds[@]}" -c "write -d ${key} -- ${value}"
echo
local wr_cmd="write"
_scratch_xfs_db -x -c "help write" | egrep -q "(-c|-d)" && value="-- ${value}"
_scratch_xfs_db -x -c "help write" | egrep -q "(-d)" && wr_cmd="${wr_cmd} -d"
_scratch_xfs_db -x "${cmds[@]}" -c "${wr_cmd} ${key} ${value}"
}
_scratch_xfs_get_sb_field()