[Haskell] Hackage 2 now available for beta testing
Well-Typed and the Industrial Haskell Group (IHG) are very pleased to announce that Hackage 2 is now available for public beta testing. The plan is to do the final switchover in late September, to coincide with ICFP. http://beta.hackage.haskell.org/ Read on for details of how to help with the public beta, an overview of the new features and what the IHG has been doing to help. Support from the Industrial Haskell Group = The IHG is a consortium of companies that rely on Haskell. The IHG members have funded the effort to get Hackage 2 up to feature parity and get it ready for the switchover. The IHG funded this effort because while the volunteer effort got us the "first 90%" of the way there (including adding a number of new features) there was still the "last 90%" to do to get it production ready. The IHG members decided to fund Hackage 2 not just because they are good citizens, but out of enlightened self-interest. Hackage has over 5000 packages written by over 1000 people -- including the world's best Haskell developers. This is a massive resource. The IHG members recognise that improvements to the tools and infrastructure that the community uses helps the community to produce more and better code. This is a benefit to everyone in the community -- including the commercial users. The IHG is keen to increase its membership so that more resources can be dedicated to improving the Haskell development platform. If your organisation relies on Haskell in some way then you may want to consider joining. See the IHG website for more details or contact i...@industry.haskell.org. [IHG website]: http://industry.haskell.org/ Despite the help of the IHG in getting to this point, Hackage is a community project, and its success depends on the community maintaining and further improving the new server. The code is now on github so it is easier to contribute, and now that the server is live there is more immediate gratification for volunteers contributing fixes and new features. Public beta === We would like to encourage you to take part in the public beta testing. We need help both from package authors as well as other users of the site. Please report any problems you find using the issue tracker on the hackage-server github site. [issue tracker]: https://github.com/haskell/hackage-server/issues [github site]: https://github.com/haskell/hackage-server We are mirroring packages from the old server (every 30min) so it is suitable to use as your main hackage server with some caveats: we are allowing package authors to upload (as well as doing the mirroring) so you may find a slightly different set of packages on this server. If you are a package author then you are welcome to poke about and upload packages. We have imported user accounts from the old server (except for a small number of early adopters of the original server who will need to contact an administrator). Note that before we do the final switchover we will *delete everything* from the beta instance and do a fresh import from the old hackage server. Configuring cabal-install - Edit your ~/.cabal/config file. Comment-out the existing "remote-repo" line near the top of the file and add in a new one like this: --remote-repo: hackage.haskell.org:http://hackage.haskell.org/packages/archive remote-repo: beta.hackage.haskell.org:http://beta.hackage.haskell.org/ New features Though our main priority has been feature parity so that we can switch over, volunteers have contributed several new features, including better package search, a new site theme, improved security, the ability to fix package dependencies after a release, changelogs, and a REST-style interface. See the beta site for more details on these new features, plus details of other features that are partially implemented or are in need of improvement. [new features]: http://beta.hackage.haskell.org/new-features Contributing to the development === The code is on github and we welcome pull requests. There are open tickets describing existing bugs and features that we want or that are in need of improvement. Help on any of these would be greatly appreciated. There is some developer and user documentation on the github wiki, including a quick guide to getting your own server instance up and running. You can ask questions on the cabal-devel mailing list or on IRC in the #hackage channel on freenode. [code]:https://github.com/haskell/hackage-server [github wiki]: https://github.com/haskell/hackage-server/wiki [cabal-devel]: http://www.haskell.org/mailman/listinfo/cabal-devel -- Duncan Coutts, Haskell Consultant Well-Typed LLP, http://www.well-typed.com/ ___ Haskell mailing list Haskell@haskell.org http://www.haskell.org/mailman/listinfo/haskell
[Haskell] HOPE 2013 Last Call for Participation (with Workshop Program)
-- CALL FOR PARTICIPATION HOPE 2013 The 2nd ACM SIGPLAN Workshop on Higher-Order Programming with Effects September 28, 2013 Boston, Massachusetts (the day after ICFP 2013) http://hope2013.mpi-sws.org -- HOPE 2013 aims at bringing together researchers interested in the design, semantics, implementation, and verification of higher-order effectful programs. It will be *informal*, consisting of invited talks and contributed talks on work in progress. Registration Web site: https://regmaster3.com/2013conf/ICFP13/register.php This is the registration site for ICFP 2013 and all the affiliated workshops including HOPE 2013. Workshop Program We received 20 high-quality submissions for talk proposals this year, from which the program committee decided to accept 10 for presentation at the workshop. The talks will be video-recorded, and the recordings will be made available here after the workshop. Also this year, the workshop will feature a special session in memory of John Reynolds. The session will include talks from Olivier Danvy, Robert Harper, Peter O'Hearn, and Uday Reddy, with a mixture of scientific and personal reflections on John's life and work. This special session is sponsored in part by a generous donation from Microsoft Research. Session 1: Concurrent Program Logics 9:00 Impredicative Concurrent Abstract Predicates Kasper Svendsen and Lars Birkedal 9:30 Subjective Concurrent Protocol Logic Aleksandar Nanevski, Ruy Ley-Wild, Ilya Sergey, and German Andres Delbianco 10:00 Protocols for Protocols: Using Modal Separation Logic to Prove Extrinsic Properties of Secure Communication David Swasey, Derek Dreyer, Deepak Garg, Robert Harper, and Aaron Turon 10:30 Coffee Break Session 2: Semantics 11:00 A Kripke Logical Relation for Affine Functions: The Story of a Free Theorem in the Presence of Non-termination Phillip Mates and Amal Ahmed 11:30 Deconstructing General References via Game Semantics Andrzej Murawski and Nikos Tzevelekos 12:00 Linking Isn't Substitution Jeremy Siek 12:30 Lunch (NOTE: only one hour for lunch) Session 3: Special Session in Memory of John Reynolds 1:30 Olivier Danvy 2:00 Robert Harper 2:30 Peter O'Hearn 3:00 Uday Reddy 3:30 Coffee Break Session 4: Types and Verification 4:00 Refinement Types and Algebraic Effects Danel Ahman 4:30 Adventures in Knot-Tying while Verifying a Thread Library in Coq Adam Chlipala 5:00 The Ins and Outs of Iteration in Mezzo Armael Gueneau, Francois Pottier, and Jonathan Protzenko 5:30 Attacking the Imperative Relationship Update Problem with Almost Everywhere Heap Invariants Devin Coughlin and Bor-Yuh Evan Chang - Goals of the Workshop - A recurring theme in many papers at ICFP, and in the research of many ICFP attendees, is the interaction of higher-order programming with various kinds of effects: storage effects, I/O, control effects, concurrency, etc. While effects are of critical importance in many applications, they also make it hard to build, maintain, and reason about one's code. Higher-order languages (both functional and object-oriented) provide a variety of abstraction mechanisms to help "tame" or "encapsulate" effects (e.g. monads, ADTs, ownership types, typestate, first-class events, transactions, Hoare Type Theory, session types, substructural and region-based type systems), and a number of different semantic models and verification technologies have been developed in order to codify and exploit the benefits of this encapsulation (e.g. bisimulations, step-indexed Kripke logical relations, higher-order separation logic, game semantics, various modal logics). But there remain many open problems, and the field is highly active. The goal of the HOPE workshop is to bring researchers from a variety of different backgrounds and perspectives together to exchange new and exciting ideas concerning the design, semantics, implementation, and verification of higher-order effectful programs. - Workshop Organization - Program Co-Chairs: Derek Dreyer (MPI-SWS, Germany) Hongseok Yang (University of Oxford) Program Committee: Anindya Banerjee (IMDEA Software Institute) Lars Birkedal (Aarhus University) Aquinas Hobor (National University of Singapore) Chung-Kil Hur (Microsoft Research Cambridge) Patricia Johann (Appalachian State University) Matthew Might (University of Utah) Peter Mueller (ETH Zurich) Brigitte Pientka (McGill University) Zhong Shao (Y
