On 10/01/2015 08:30 AM, Eric Sandeen wrote:
> Ping?
I no longer have your original message. But this is
one I know and love (hate) from past experience with shell
scripting. I eventually started always using "${FOO}"
in scripts to make sure I never had to chase down this
sort of bug, ever again.
I did not look at the whole set of fstests code
to see if you hit them all, but everything I see
here looks good.
Reviewed-by: Alex Elder <elder@xxxxxxxxxx>
> On 8/28/15 5:46 PM, Eric Sandeen wrote:
>> Per the Advanced Bash Scripting Guide:
>>
>> "The -n test requires that the string be quoted within the test brackets.
>> Using an unquoted string with ! -z, or even just the unquoted string
>> alone within test bracket normally works, however, this is an unsafe
>> practice. Always quote a tested string."
>>
>> And indeed:
>>
>> $ unset FOOBAR
>> $ [ -n $FOOBAR ] || echo nope
>> $ [ -n "$FOOBAR" ] || echo nope
>> nope
>>
>> Ran into this on a box w/o the attr program installed, and passed
>> _require_attrs. Quoting the string fixes this; fix it there
>> and other occurrences in common/* as well.
>>
>> Signed-off-by: Eric Sandeen <sandeen@xxxxxxxxxx>
>> ---
>>
>> diff --git a/common/attr b/common/attr
>> index 48c81cc..cc9cfda 100644
>> --- a/common/attr
>> +++ b/common/attr
>> @@ -165,7 +165,7 @@ _filter_aces_notypes()
>>
>> _require_acls()
>> {
>> - [ -n $CHACL_PROG ] || _notrun "chacl command not found"
>> + [ -n "$CHACL_PROG" ] || _notrun "chacl command not found"
>>
>> #
>> # Test if chacl is able to list ACLs on the target filesystems. On really
>> @@ -196,9 +196,9 @@ _list_acl()
>>
>> _require_attrs()
>> {
>> - [ -n $ATTR_PROG ] || _notrun "attr command not found"
>> - [ -n $GETFATTR_PROG ] || _notrun "getfattr command not found"
>> - [ -n $SETFATTR_PROG ] || _notrun "setfattr command not found"
>> + [ -n "$ATTR_PROG" ] || _notrun "attr command not found"
>> + [ -n "$GETFATTR_PROG" ] || _notrun "getfattr command not found"
>> + [ -n "$SETFATTR_PROG" ] || _notrun "setfattr command not found"
>>
>> #
>> # Test if chacl is able to write an attribute on the target filesystems.
>> diff --git a/common/quota b/common/quota
>> index 23be4f8..658b1c3 100644
>> --- a/common/quota
>> +++ b/common/quota
>> @@ -26,7 +26,7 @@
>> #
>> _require_quota()
>> {
>> - [ -n $QUOTA_PROG ] || _notrun "Quota user tools not installed"
>> + [ -n "$QUOTA_PROG" ] || _notrun "Quota user tools not installed"
>>
>> case $FSTYP in
>> ext2|ext3|ext4|ext4dev|reiserfs)
>> @@ -74,7 +74,7 @@ _require_xfs_quota()
>> if [ "$USE_EXTERNAL" = yes -a ! -z "$SCRATCH_RTDEV" ]; then
>> _notrun "Quotas not supported on realtime scratch device"
>> fi
>> - [ -n $XFS_QUOTA_PROG ] || _notrun "XFS quota user tools not installed"
>> + [ -n "$XFS_QUOTA_PROG" ] || _notrun "XFS quota user tools not installed"
>> }
>>
>> #
>>
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