Re: [PATCH libosinfo/osinfo-db 0/5] Force anchored patterns when matching regex

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On Thu, Oct 04, 2018 at 12:28:44PM +0200, Fabiano Fidêncio wrote:
> On Thu, 2018-10-04 at 11:05 +0100, Daniel P. Berrangé wrote:
> > On Tue, Sep 11, 2018 at 01:15:26PM -0400, Cole Robinson wrote:
> > > On 09/07/2018 03:18 PM, Fabiano Fidêncio wrote:
> > > > This patch series basically consists in a fix for a possibly
> > > > always
> > > > present issue that I've faced Today after adding more data to
> > > > osinfo-db.
> > > > 
> > > > Please, take a careful look at "db: Force anchored ..." patch as
> > > > this is
> > > > the most important patch of the series.
> > > > 
> > > > As this change ends up exposing a few more issues on osinfo-db,
> > > > would be
> > > > really nice to have the osinfo-db patches merged altogether.
> > > > 
> > > > It's important to note that the osinfo-db patches themselves are
> > > > **not**
> > > > going to break something in case they're used against a "non-
> > > > patched"
> > > > libosinfo.
> > > > 
> > > > Also, the osinfo-db patches will have their commit message edited
> > > > after
> > > > the libosinfo patches are pushed, so I can reference the proper
> > > > commit
> > > > hash in their commit messages.
> > > > 
> > > > libosinfo:
> > > > Fabiano Fidêncio (2):
> > > >    tests: Expand the arch's parser for isodetect
> > > >    db: Force anchored patterns when matching regex
> > > > 
> > > >   osinfo/osinfo_db.c     | 2 +-
> > > >   tests/test-isodetect.c | 2 ++
> > > >   2 files changed, 3 insertions(+), 1 deletion(-)
> > > > 
> > > > osinfo-db:
> > > > Fabiano Fidêncio (3):
> > > >    altlinux: Fix publisher-id for 4.0 and 4.1
> > > >    win10: Fix volume-id
> > > >    openbsd: Fix all publisher-ids
> > > > 
> > > 
> > > I guess technically this could constitute an API break: if a user
> > > has custom
> > > installed db entries and is depending on this behavior, they could
> > > see
> > > different results after an update. That said I doubt it's an issue
> > > in
> > > practice, and implying ANCHORED mode is the better long term option
> > > IMO, so:
> > > 
> > > Reviewed-by: Cole Robinson <crobinso@xxxxxxxxxx>
> > 
> > If we want anchored matches, then the osinfo-db regexes should
> > include the "^" and "$" anchors as they see fit. We shouldn't force
> > it in libosinfo API itself. Note that we explicitly allow apps to
> > load & interpret the XML files directly without using libosinfo APIs,
> > which further pushes to using anchors in the XML
> 
> So, your preference would be to revert the libosinfo patch and then
> patch osinfo-db case-by-case?

Yes, pretty much.


Regards,
Daniel
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