On Sat, Aug 7, 2010 at 11:03 AM, Tim Abbott <tabb...@mit.edu> wrote: > On Sat, 7 Aug 2010, William Stein wrote: > >> On Sat, Aug 7, 2010 at 10:49 AM, <tabb...@ksplice.com> wrote: >> > I think there are a couple new dependencies that are not in Debian; there >> > weren't any as of version 4.0 or so. I would recommend first getting >> > sagemath working building the copies contained in the sagemath tarball, >> > and then package them separately for Debian and switch over later in >> > development (this is how I did the original development, and it was much >> > easier to debug problems incrementally). >> > >> > I suspect that starting by doing the work incrementally with 3.0.6 first >> > might be easier than starting with 4.5 to begin with. There's a good >> > chance you'll want to switch tacts once you get the hang of it, but I >> > think if you try migrating the current package to 4.5, you'll end up >> > feeling overwhelmed by the problems and give up. Some partial progress of >> > mine on updating direct to 3.4.1 (shortly before 4.0) is available, in >> > case you find it useful (I don't think I was very far along): >> > >> > http://web.mit.edu/sage/www/sage-3.4.1-debian.tar.gz >> > >> > My experience is that one spends most of your time working on sagemath >> > packaging on (1) debugging and (2) waiting for it to build (it took about >> > 30 minutes to build on the server I was using). When I tried to update >> >> Sage 4.5.x will take a lot longer than 30 minutes if you don't build >> in parallel. >> If you build the sagemath package in parallel in can take as little as >> 3 or 4 minutes >> on sage.math.washington.edu > > Yeah, unfortunately, the server I was using had only 2 cores. > > Also, I should note that the 30 minutes was just the time to build the ~10 > spkgs that weren't being dealt with as packages -- this was with using > system packages for all the dependencies (I imagine your number is for > building the whole thing?)
I was just thinking about the sage core Python/Cython library. E.g., what gets built by sage -ba William > > -Tim Abbott > >> >> -- William >> >> > direct from 3.0.5 to 3.4.1, I found debugging problems resulting from >> > upstream changes took most of the time. I bet it would be much easier >> > when you can find the upstream change that caused the problem; since each >> > sagemath version has relatively small changes, that can make life easier, >> > especially if you're still getting used to dealing with the Sage build >> > system. >> > >> > One thing that I should warn you about is that now Debian has >> > substantially newer versions of various packages than Sage 3.0.5 was >> > designed for, and in some cases that will break things. The current Sage >> > 3.0.5 package was prepared for Lenny, and then tweaked a bit to keep it >> > compiling on newer stuff. So it's possible that the incremental approach >> > will prove to be painful and you don't want to do it. But if I were you, >> > I would probably start by just trying to do 3.0.5 -> 3.0.6, just because I >> > think that'll help build confidence and give you a better sense of the >> > nature of the challenge than going straight to 4.5. >> > >> > But it's really up to you. I don't have the time to help more than just >> > providing background information on how I did it and what problems I >> > encountered. >> > >> > -Tim Abbott >> > >> >> If the answer is no then the next question is what is the minimal >> >> version that we can package given the current set of packages >> >> available in Debian. There is no clear cut approach. we need to go >> >> back and forth a bit. We may need to file some ITPs and work on some >> >> transitions which is where the team becomes important. >> >> >> >> As for the support requests from users, sooner or later they realize >> >> that if there is a problem they have to go with the later version >> >> anyway. A bit of that frustration is probably good as it will drive >> >> some to come and take part in packaging sage for Debian. >> > >> > -- >> > To post to this group, send an email to sage-de...@googlegroups.com >> > To unsubscribe from this group, send an email to >> > sage-devel+unsubscr...@googlegroups.com >> > For more options, visit this group at >> > http://groups.google.com/group/sage-devel >> > URL: http://www.sagemath.org >> > >> >> >> >> -- >> William Stein >> Professor of Mathematics >> University of Washington >> http://wstein.org >> >> -- >> You received this message because you are subscribed to the Google Groups >> "debian-sage" group. >> To post to this group, send email to debian-s...@googlegroups.com. >> To unsubscribe from this group, send email to >> debian-sage+unsubscr...@googlegroups.com. >> For more options, visit this group at >> http://groups.google.com/group/debian-sage?hl=en. >> >> > > -- > You received this message because you are subscribed to the Google Groups > "debian-sage" group. > To post to this group, send email to debian-s...@googlegroups.com. > To unsubscribe from this group, send email to > debian-sage+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/debian-sage?hl=en. > > -- William Stein Professor of Mathematics University of Washington http://wstein.org -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
