[pacman-dev] [PATCH] Enable Perl regular expressions in NoExtract.
steinhardt.ptk at gmail.com
Wed Jun 5 15:11:23 EDT 2013
On Wed, Jun 05, 2013 at 03:19:18PM -0400, Andrew Gregory wrote:
> On 06/05/13 at 03:10pm, Patrick Steinhardt wrote:
> > On Wed, Jun 05, 2013 at 10:28:25PM +1000, Allan McRae wrote:
> > > On 05/06/13 16:16, Andrew Gregory wrote:
> > > >
> > > > I tend to think that the particular problem at issue here would be
> > > > better solved by a negation operator ala gitignore:
> > > >
> > > > NoExtract = usr/share/locale/* !usr/share/locale/en_US/*
> > >
> > >
> > > I like this idea.
> > How would you ignore all but two files in this directory then?
> > NoExtract = !usr/share/locale/en_US/* !usr/share/locale/locale.alias
> > One problem that comes to my mind: the first inverse match
> > already includes locale.alias and as such it would not be
> > extracted. The second term would exclude locale.alias but include
> > en_US/*.
> > Currently we abort as soon as the first expression (whether it is
> > PCRE or fnmatch) matches. If we do it like that we would need to
> > always iterate over all entries in NoExtract and check if a later
> > occurence of the same file exists that overwrites previous
> > occurences. _If_ a later term matches again it is unclear as to
> > what to do, as stated above.
> I would simply have the last match win. It's simple, flexible, and we
> can still abort as soon as we find a match if we just check them in
> reverse order. So you could do what you want with:
> NoExtract = usr/share/locale/*
> NoExtract = !usr/share/locale/en_US/*
> NoExtract = !usr/share/locale/locale.alias
usr/share/locale/locale.alias already matches en_US/*.
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