Threads for MSch | Lobsters

6

MSch 1 month ago | link | on: A Real-World WebAssembly Benchmark

PSPDFKit CTO here: We’ve been using WebAssembly since 2017 to render PDF documents directly in the browser and strongly believe in the future of the technology.

We published this benchmark to have a public indicator of the performance gains WebAssembly promises in a real-world product.

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MSch 3 years ago | link | on: This Erlanger Used The Process Dictionary, Look What He Found

OTP today already uses the process dictionary to publish information about processes:

$ancestors and $initial_call are put there and proc_lib:initial_call/1 fetches the pdict for a given pid and reads the $initial_call key. That suffers from the same problem.

I wish Erlang would allow selectively reading a key from another process' pdict. That would solve a whole class of problems about how to publish information about a process that should be cleaned up when it dies.
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  friendlysock 3 years ago | link
  
  Wouldn’t the proper thing to do in that case though either be to store that information in the process’s supervisor, or in mnesia or ets or something?

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MSch 4 years ago | link | on: Analysis of Raft Consensus

The code is open source (MIT licence) and available on GitHub. I’ve not linked to as its currently undergoing a refactoring / documenting process ready for release of v0.1.

If you’re curious (like I was), I think that’s the code: https://github.com/heidi-ann/ocaml-raft

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bratsche 5 years ago | link | on: What's new in Active Record 4

I really hope they can manage to get all the postgresql range type support merged in for this release.
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  steveklabnik 5 years ago | link
  
  Is there anything specific that we haven’t merged yet?
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    MSch 5 years ago | link
    
    I would love to have some input on https://github.com/rails/rails/pull/7324
    
    I’m just not well-versed enough in PG/AR to know what the right approach is here, but I really want pg’s geotypes in Rails.
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      steveklabnik 5 years ago | link
      
      Yeah I don’t know either. :/

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MSch 5 years ago | link | on: What's new in Active Record 4

By calling first in previous versions of Rails, a simple LIMIT 1 would be added to the generated SQL query. This does not guarantee the record with the lowest primary key is returned.

Calling first in Rails 4 will add an implicit order to the SQL query. This ensures the record with the lowest primary key is returned first.

Is there anything that’s equivalent to the previous behavior? I always used first when I knew my query will only return one row, so I don’t want to ORDER BY id
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  MSch 5 years ago | link
  
  Found it. It’s called take, a very apt name IMO.
  
  https://github.com/mhfs/rails/commit/1379375f93c53d4c49fa8592b6117c3ade263f2e

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MSch 5 years ago | link | on: Simple SPDY and NPN Negotiation with HAProxy

Anyone know if I can put nginx behind HAProxy with spdy? I think nginx only deals with spdy if the connection is encrypted, so there’s no way to have HAProxy handle the SSL?

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MSch 5 years ago | link | on: Show iOS devs: PSTCollectionView - API compatible replacement of UICollectionView (iOS6) for iOS4.3+

Would be nice to have a cocoa or ios tag.
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  jcs 5 years ago | link
  
  There already is an ios tag.
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    MSch 5 years ago | link
    
    Woops, I totally missed that. Thanks for fixing the submission.

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steveklabnik 5 years ago | link | on: What to expect in Rails 4.0 (slides)

As someone who’s been putting a lot of time into Rails lately, if you have any questions, ask away.

There’s still a few things that haven’t landed yet, too…
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  MSch 5 years ago | link
  
  One thing I’m curious about after checking out the slides, will it be possible in Rails 4 to get rid of the dependency on activerecord-deprecated_finders? I’ve stopped using those features in our apps some time ago, so being forced to have this dependency in Rails 4 irks me.
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    steveklabnik 5 years ago | link
    
    Nope. It’ll get removed in 4.1. If it bothers you a lot, you can fork the gem, remove the dep, and use your fork. :)
    
    If we didn’t include it on Rails itself, when people upgraded, things would blow up.

maxpow4h 5 years ago | link | on: Easier builds and deployments using Git over HTTPS and OAuth · GitHub

[Comment removed by author]
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  MSch 5 years ago | link
  
  IMO deploy keys suck if you depend on lots and lots of private repositories. One deploy key can still only be used for one repo right?
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  skalnik 5 years ago | link
  
  SSH keys can also be a pain on Windows

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MSch 5 years ago | link | on: WyeWorks Blog: Rails 4 in a MindNode

I know the developer of MindNode and I always told him “I don’t see why anyone would use mindmaps when they can just write lists in Markdown”. Well now I’m going to tell him that I was wrong :)

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MSch 5 years ago | link | on: Why Sinatra's Halt is Awesome

There’s https://github.com/strobecorp/strobe-rails-ext#strobeactioncontrollermetal which has a few nice features, amongst them support for halt in Rails. Don’t know if it works on Rails 3.2 though.

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MSch 5 years ago | link | on: Handling Database Failover at Craigslist

Tangentially related, can someone recommend a premade solution for failing over PostgreSQL master/slave arrangements?

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MSch 5 years ago | link | on: Ruby’s magic underscore

Wow. I remember a blogpost (by @roidrage iirc) where using _ to discard a block variable was introduced.

Back then I just thought “nice someone used Haskell and just decided to use _ in Ruby like they did in Haskell.”

I didn’t know there was explicit support for that in MRI.

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MSch 5 years ago | link | on: Querying PostgreSQL datatypes in ActiveRecord with postgres_ext

It makes me incredibly happy to finally see PostgreSQL-specific extensions get support in Rails/AR.
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  steveklabnik 5 years ago | link
  
  In general, the Rails team is accepting any pulls to get them into mainline Rails.