[pacman-dev] [PATCH] Improve changelog handling

Aaron Griffin aaronmgriffin at gmail.com
Fri Dec 7 13:54:36 EST 2007

On Dec 7, 2007 12:35 PM, Xavier <shiningxc at gmail.com> wrote:
> On Fri, Dec 07, 2007 at 12:28:25PM -0600, Aaron Griffin wrote:
> > On Dec 7, 2007 12:20 PM, Andrew Fyfe <andrew at neptune-one.net> wrote:
> > > One small suggestion, has anyone worked out how to read a file directly
> > > from an archive using libarchive rather than extracting to a temp file
> > > then reading the temp file? It would be useful here and where we read
> > > .PKGINFO
> >
> > Yeah but we'd have to return an fd, which is fine, but adds some extra
> > complexity we may not want.
> >
> I was thinking exactly the same as Andrew, why not just using
>   ssize_t archive_read_data(struct archive *, void *buff, size_t len);
> I don't understand what you are saying however, about returning a fd.

Oh man, ignore what I said - I was overthinking that to the parsing
routines and all that jazz - in this case we're returning the
changelog as an alpm_list_t of strings. Yes, in this case it would
definitely be better to read direct from the archive. HOWEVER, you
can't read line by line... what you need to do is make some sort of
"archive_readline" function that reads one char at a time until a
newline char. It's annoying, but that's the best we can do until
libarchive gets a "readline" function.

More information about the pacman-dev mailing list