[libvirt] [PATCH 3/3] scripts: check-aclrules: use regular expressions less often

Ján Tomko jtomko at redhat.com
Fri Nov 22 10:37:31 UTC 2019


On Fri, Nov 22, 2019 at 09:00:12AM +0100, Erik Skultety wrote:
>On Wed, Nov 20, 2019 at 07:32:46PM +0100, Ján Tomko wrote:
>> Use a simple
>>   if "substr" in line
>> before running a regular expression, which saves time,
>> especially if the regex has a capture group.
>>
>> This reduces runtime of the check by almost 78 % for me.
>>
>> Signed-off-by: Ján Tomko <jtomko at redhat.com>
>> ---
>>  scripts/check-aclrules.py | 26 +++++++++++++++++++-------
>>  1 file changed, 19 insertions(+), 7 deletions(-)
>...
>
>>              # every func listed there, has an impl which calls
>>              # an ACL function
>>              if intable:
>> -                assign = re.search(r'''\.(\w+)\s*=\s*(\w+),?''', line)
>> +                assign = None
>> +                if '"' in line:
>
>^This doesn't quite work, does it? I don't see any '"' in the driver API
>mapping structures. The only reliable pattern I see we could use is ', /* '
>but in order to use that, we'd have to unify a few source files, mainly
>vz_driver.c, doing:
>
>git grep -Enpi ", \s+/\* " | grep driver.c
>
>should help identifying them.

Oops, that should've been "=".

I have no idea how I managed to type that equal sign sideways. =)

Jano

>
>With this one addressed:
>Reviewed-by: Erik Skultety <eskultet at redhat.com>
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