cheeaun

RedDotRubyConf 2017 links & resources

📆 Jun 22-23, 2017

🌏 Web site: http://reddotrubyconf.com/ Twitter: http://twitter.com/reddotrubyconf

💁 Ping me @cheeaun on Twitter or leave a comment below if you found some awesome stuff for #rdrc2017. This gist will be updated whenever there's new stuff.

🕙 Previously, on RedDotRubyConf...

joker1007

class Object
  def defer(method, *args)
    @current_fibers ||= []
    @tracepoint ||= TracePoint.trace(:return) do |tp|
      @current_fibers.reverse_each do |fib|
        fib.resume
      end
    end

    @current_fibers << Fiber.new do

RStankov

module ApplicationPolicy
  READ = :read

  MANAGE = :manage
  MANAGE_FIELD = { parent_role: MANAGE } # NOTE(rstankov): Used for GraphQL fields

  UPDATE = :update

  MODERATE = :moderate

Earendil95

Description

This hooks will remind you to reference task in your commit, and remember your task ref for branch. Your commit messages will have style "[reference] message"

Usage

1. Create two files in your repo - e.g. [PROJECT_ROOT]/hooks/prepare-commit-msg.rb and [PROJECT_ROOT]/hooks/post-checkout.rb
2. Copy to first file (here will assume that this is a [PROJECT_ROOT]/hooks/prepare-commit-msg.rb):

#!/usr/bin/env ruby

avlazarov

upstream grpcservers {
    server 0.0.0.0:50051;
    server 0.0.0.0:50052;
}

server {
    listen 50050 http2;
    server_name localhost;

    access_log /var/log/nginx/grpc_log.json;

palkan

-- show running queries (9.2)
SELECT pid, age(query_start, clock_timestamp()), usename, query 
FROM pg_stat_activity 
WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%' 
ORDER BY query_start desc;

-- kill running query
SELECT pg_cancel_backend(procpid);

-- kill idle query

tenderlove

Benchmarks for GC Compactor

GC benchmarks for trunk vs gc-compact seem to be about the same:

$ make benchmark ITEM=gc
./revision.h unchanged
/Users/aaron/.rbenv/shims/ruby --disable=gems -rrubygems -I./benchmark/lib ./benchmark/benchmark-driver/exe/benchmark-driver \
	            --executables="compare-ruby::/Users/aaron/.rbenv/shims/ruby --disable=gems -I.ext/common --disable-gem" \
	            --executables="built-ruby::./miniruby -I./lib -I. -I.ext/common  -r./prelude --disable-gem" \

Ceroce

-module(recursion).
-export([fib/1, fibtail/1, fibtail/3, isPerfect/1]).

fib(0) ->
    0;
fib(1) ->
    1;
fib(N) when N > 0 ->
    fib(N-1)+fib(N-2).

benoittgt

--- Setup
CREATE EXTENSION IF NOT EXISTS "uuid-ossp";   

DROP TABLE IF EXISTS planner_checksums CASCADE;
CREATE TABLE IF NOT EXISTS planner_checksums (
  identifiers_checksum uuid,
  attributes_checksum uuid,
  version INT
  );
CREATE INDEX planner_checksums_idx ON planner_checksums(identifiers_checksum);

palkan

PoC: GraphQL Ruby fragment caching

This example demonstrates how we can cache the response fragments in graphql-ruby.

Existing solutions only allow caching resolved values but not all the GraphQL machinery (validation, coercion, whatever).

Caching response parts (in case of Ruby, sub-Hashes) is much more efficient.

Benchmarks