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iotests: Consistent $IMGOPTS boundary matching 

To disallow certain refcount_bits values, some _unsupported_imgopts
invocations look like "refcount_bits=1[^0-9]", i.e. they match an
integer boundary with [^0-9].  This expression does not match the end of
the string, though, so it breaks down when refcount_bits is the last
option (which it tends to be after the rewrite of the check script in
Python).

Those invocations could use \b or \> instead, but those are not
portable.  They could use something like \([^0-9]\|$\), but that would
be cumbersome.  To make it simple and keep the existing invocations
working, just let _unsupported_imgopts match the regex against $IMGOPTS
plus a trailing space.

Suggested-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20210210095128.22732-1-mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Max Reitz 2021-02-10 10:51:28 +01:00 committed by Kevin Wolf
parent 15d40e9204
commit b34cdf3225
1 changed files with 3 additions and 1 deletions
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4
tests/qemu-iotests/common.rc
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@ -885,7 +885,9 @@ _unsupported_imgopts()
{ {
for bad_opt for bad_opt
do do
if echo "$IMGOPTS" | grep -q 2>/dev/null "$bad_opt" # Add a space so tests can match for whitespace that marks the
# end of an option (\b or \> are not portable)
if echo "$IMGOPTS " | grep -q 2>/dev/null "$bad_opt"
then then
_notrun "not suitable for image option: $bad_opt" _notrun "not suitable for image option: $bad_opt"
fi fi