Currency Calculations in Ruby
Money, regardless of the currency it is in, seems like a floating-point number. But it's a mistake to use floats for currency. Float numbers (hence, float objects) are, by definition, inexact real numbers that make use of the double-precision floating-point representation characteristic of the native architecture. Inexact numbers make accountants unhappy. In this article, you’ll be guided through
Fullstaq Ruby epic 2 released: APT/YUM repo, Ruby 2.6.4
A while ago, the people from Fullstaq and I started the Fullstaq Ruby project: a Ruby distribution that's optimized for server use cases. Compared to normal MRI Ruby, Fullstaq Ruby uses 50% less memory, is faster, and is easier to install and security-patch because of RPM and DEB packages. What's new? Fullstaq Ruby is in beta. The initial release (epic 1) only came with the bare minimum. I am happ
Fullstaq Ruby: Ruby, optimized for production
Convenient — install Ruby without compiling Keep secure — auto-update with APT and YUM Combat memory bloat — save 30-50% memory Speed up — with a better memory allocator Open source, based on MRI From the author of Passenger, Ruby Enterprise Edition Server Edition Now in beta Perfect for traditional infrastructure. Install with DEBs and RPMs. Get Started or learn more Container Edition Coming soon
5 security issues in Ruby on Rails apps from real life - frontdeveloper.pl
…and how to fix them 🙂 I have had several opportunities to find and fix various security issues within Ruby on Rails applications over time. Based on my own experience I would like to help you with making Rails apps more secure. At the same time, I hope that you won’t find any of the below issues in any of your apps. If you want to have a better understanding of built-in Ruby on Rails security me
A New Ruby Application Server: NGINX Unit
There’s a new application server on the block for Rubyists - NGINX Unit. As you could probably guess by the name, it’s a project of NGINX Inc., the for-profit open-source company that owns the NGINX web server. In fall of 2017, they announced the NGINX Unit project. It’s essentially an application server designed to replace all of the various application servers used with NGINX. In Ruby’s case, th
VMã«æ‰‹ã‚’åŠ ãˆãšRubyを高速化ã™ã‚‹JITコンパイラ「YARV-MJITã€ã®è©± - k0kubun's blog
先日ã®RubyKaigi 2017ã®LTã§ã¯LLVMベースã®CRubyå‘ã‘JITコンパイラLLRBã®è©±ã‚’ã—ã¾ã—ãŸã€‚ 5分ã¯ã¡ã‚‡ã£ã¨JITã®è©±ã‚’ã™ã‚‹ã«ã¯çŸã‹ã‹ã£ãŸã§ã™ã。 LLRBã‚’ãµã¾ãˆãŸã€Cã®ã‚³ãƒ¼ãƒ‰ç”Ÿæˆã¸ã®è»Œé“ä¿®æ£ ã•ã¦ã€ä¸Šè¨˜ã®è³‡æ–™ã«ã‚る通りã€CRubyã®JITã«ãŠã„ã¦ã¯ãƒ¡ã‚¤ãƒ³ã®é«˜é€ŸåŒ–対象ãŒæ—¢ã«å˜åœ¨ã™ã‚‹Cã®ã‚³ãƒ¼ãƒ‰ã«ãªã‚‹ãŸã‚〠開発ã®æ—©ã„段階ã§ãƒ‘フォーマンスã«ã‚¤ãƒ³ãƒ‘クトをæŒã¦ã‚‹ã¨ã™ã‚Œã°LLVM Passã®é †ç•ªã‚’変ãˆã‚‹ãらã„ã§ã€ LLVM IRを直接生æˆã—ã¦ã‚‚最é©åŒ–上ã®ãƒ¡ãƒªãƒƒãƒˆãŒã»ã¨ã‚“ã©ãªã„ã®ã§ãã®éƒ¨åˆ†ã¯MJIT ã¨åŒã˜ãCã®ã‚³ãƒ¼ãƒ‰ã‚’生æˆã™ã‚‹ã‚ˆã†ã«å¤‰æ›´ã—ãŸã„ã€ã¨ã„ã†è©±ã‚’ã—ãŸ*1。 ã§ã€LLRBã¯Cæ‹¡å¼µã¨ã—ã¦ä½œã‚‹ã¹ãã¡ã‚‡ã£ã¨ä¸æ€è°ãªåŠªåŠ›ã‚’ã„ã‚ã„ã‚ã‚„ã£ã¦ãŠã‚Šã€ ãれらã®è¨è¨ˆã¯ã‚„ã£ã¦ã¿ãŸçµæžœ(コアã«ç›´æŽ¥å¤‰æ›´ã‚’åŠ ãˆã‚‹ã®ã«æ¯”ã¹)デメリットã®æ–¹ãŒå¤§ãã„ã¨æ€ã£ãŸã®ã§ã€ LLRBã®å¤±æ•—ã‚’å…¨ã¦ç”Ÿã‹ã—ã¤ã¤ã€ä»Šå›ž
RuboCopã‚’ç„¡ç†ãªãæ—¢å˜ãƒ—ãƒã‚¸ã‚§ã‚¯ãƒˆã«å°Žå…¥ã™ã‚‹
TL;DR- RuboCop良ã„よ - 入れるã ã‘ã ã¨èª°ã‚‚使ã‚ãªã„よ - é‹ç”¨ãƒ•ãƒãƒ¼ã«å…¥ã‚Œã‚‹ã¨è‰¯ã„よ - åƒé‡Œã®é“も一æ©ã‹ã‚‰ã よ RuboCopã¨ã¯RuboCopã¯ã‚³ãƒ¼ãƒ‡ã‚£ãƒ³ã‚°è¦ç´„ã«å¾“ã£ã¦ã„ã‚‹ã‹ã‚’ãƒã‚§ãƒƒã‚¯ã—ã€ã‚³ãƒ¼ãƒ‰ã®å“質をä¿ã£ã¦ãれるgemã§ã™ã€‚ RuboCopã®ã‚¤ãƒ¡ãƒ¼ã‚¸ä¾‹ãˆã°ä»¥ä¸‹ã®ã‚ˆã†ãªrubyã¨ã—ã¦ã¯ã‚ã¾ã‚Šè‰¯ããªã„コードã ã£ãŸå ´åˆã«ã€RuboCopã¯ãƒ«ãƒ¼ãƒ«ã«æ²¿ã£ã¦å•é¡Œç‚¹ã®æŒ‡æ‘˜ã‚„自動修æ£ã‚’è¡Œã£ã¦ãã‚Œã¾ã™ã€‚ ã“れ以外ã«ã‚‚RuboCopã¯å¤šæ§˜ãªãƒ«ãƒ¼ãƒ«ã‚’サãƒãƒ¼ãƒˆã—ã¦ãŠã‚Šã€ãã®ä¸ã«ã¯ãƒã‚°ã‚Šã‚„ã™ã„コードを回é¿ã™ã‚‹ã‚ˆã†ãªãƒ«ãƒ¼ãƒ«ã‚‚ã‚ã‚Šã¾ã™ã€‚ RuboCopを使ã†äº‹ã§ã‚³ãƒ¼ãƒ‡ã‚£ãƒ³ã‚°è¦ç´„ã«æ²¿ã£ã¦ã„ãªã„コードやã€ãƒã‚°ã‚’å«ã‚“ã コードを自動ã§ã‚る程度抑制ã§ãã€ãƒ¬ãƒ“ューç‰ã§ãれらã®æŒ‡æ‘˜ã™ã‚‹æ‰‹é–“を大ãã削減ã§ãã¾ã™ã€‚ 導入方法gem install rubocop ã™ã‚‹ã‹ã€Gemfileã«æ›¸ã„ã¦ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ã—ã¦ãã ã•
Bootsnapã«ã¤ã„ã¦
ShopifyãŒå‡ºã—ã¦ã„ã‚‹Bootsnapã¨ã„ã†gemãŒã‚ã‚Šã¾ã™ã€‚説明ã«æ›¸ã„ã¦ã‚る通りã€å·¨å¤§ãªRuby / Railsã®ã‚¢ãƒ—リを高速化ã™ã‚‹ç‚ºã®gemらã—ã„ã§ã™ã€‚ 何をやã£ã¦ãれるã‹ã¨ã„ã†ã¨ã€Ruby, Active Supportã€YAMLã®ãƒ¡ã‚½ãƒƒãƒ‰ã®å‘¼ã³å‡ºã—ã®æœ€é©åŒ–ã€åŠã³ã€ã‚ャッシュをã—ã¦ãれるã€ã¨ã„ã†ã‚‚ã®ã‚‰ã—ã„ã§ã™ã€‚ ãªãŠã€1.0.0ã®æ™‚点ã§ã‚µãƒãƒ¼ãƒˆã—ã¦ã„るプラットフォームã¯MacOSã¨Linuxã ã‘ã§ã™ã€‚Windowsã¯æœªå¯¾å¿œã€‚ ã¾ãŸã€Rubyã¯2.3.0以上ã®ã¿ã‚µãƒãƒ¼ãƒˆã—ã¦ã„ã¾ã™ã€‚ require 'bootsnap' Bootsnap.setup( cache_dir: 'tmp/cache', # Path to your cache development_mode: ENV['MY_ENV'] == 'development', load_path_cache: true,
Fixing Unicode for Ruby Developers
We’ve already learned about the history of Unicode and how it works under the hood. In this final part, we’ll learn the theory and practice of handling Unicode properly. Before we get into practice I’d like to talk a bit about Unicode support in Ruby language. If you’re not a Ruby developer, feel free to scroll past the first chapter. Unicode + Ruby = 😢This header suggests, that Ruby and Unicode
ENV.fetch ã®ã™ã™ã‚ - ~saiya/hatenablog
Ruby ã«ã¦ç’°å¢ƒå¤‰æ•°ã®å€¤ã‚’使ã†å ´åˆã«ã¯ ENV.fetch を使ã†ã¨è‰¯ã„ã®ã§ã¯ãªã„ã‹ã€ã¨ã„ã†å°ãƒã‚¿ã€‚ ãã†ã™ã‚‹ã“ã¨ã§ç’°å¢ƒå¤‰æ•°ãŒå˜åœ¨ã—ãªã„エラーを早期ã«æ¤œçŸ¥ã§ãる上ã€ã‚¨ãƒ©ãƒ¼ã®æ ¹æœ¬åŽŸå› ãŒä¾‹å¤–ã«åæ˜ ã•ã‚Œã‚‹ã®ã§åˆ†ã‹ã‚Šã‚„ã™ããªã‚‹ã€‚ ã“ã®2è¡Œã ã‘ã§ã»ã¼è¨€ã„å°½ãã—ã¦ã—ã¾ã£ã¦ã„ã‚‹ãŒã€ä»¥ä¸‹è©³ç´°èª¬æ˜Ž: ENV を使ã†èƒŒæ™¯ 環境変数をèªã‚€ç†ç”±ã¯è‰²ã€…ã‚ã‚Šã†ã‚‹ãŒã€ç‰¹ã« Heroku ã‚„ Docker ãªã©ã®è¿‘代的㪠PaaS 環境・コンテナ環境ã«ãŠã„ã¦ç’°å¢ƒå¤‰æ•°ã‚’èªã‚€ã“ã¨ãŒå¤šã„。 例ãˆã° Ruby on Rails アプリ㧠DB ã«æŽ¥ç¶šã™ã‚‹å ´åˆã€æŽ¥ç¶šå…ˆã® DB ã®ãƒ›ã‚¹ãƒˆã‚„ãƒ¦ãƒ¼ã‚¶ãƒ¼æƒ…å ±ã‚’ database.yml ã«æ±ºã‚打ã¡ã™ã‚‹ã®ã§ã¯ãªãã€Heroku デプãƒã‚¤æ™‚ã‚„ Docker コンテナ起動時ã«æŒ‡å®šã—ãŸã„ã¨ã„ã†ã“ã¨ãŒå¤šã„ãŸã‚ã§ã‚る。 ã¾ãŸã€Ruby on Rails ã§ã¯ database.yml ãªã©ã®å„種è¨å®š
Announcing Hanami v1.0.0
Announcing Hanami v1.0.0 Posted by Luca Guidi on April 06, 2017 Share Tweet One-Point-OOOh! 😱 Hanami is a full-stack, lightweight, yet powerful web framework for Ruby. Back in the summer of 2012, as a frustrated web developer, I started an experiment to rethink Ruby on Rails and to build a modern web framework for Ruby. The goal was to keep all what I consider the good parts of Rails and to add e
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RubyKaigiã«è¡Œãã¨æœ¬ã«ã‚µã‚¤ãƒ³ã‚’求ã‚られるã™ã”ã„エンジニアãŒæ›¸ã„ãŸhaconiwaã¨ã„ã†mruby製ã®ã‚³ãƒ³ãƒ†ãƒŠã‚¨ãƒ³ã‚¸ãƒ³ï¼ˆã‚³ãƒ³ãƒ†ãƒŠç’°å¢ƒæ§‹ç¯‰ã®åŸºç›¤ãƒ„ール）ãŒã‚ã‚‹ã®ã§ã™ãŒã€å°‘ã—試ã—ã¦ã¿ã‚ˆã†ã¨æ€ã£ã¦ã€ã¨ã‚Šã‚ãˆãš1サーãƒä¸Šã«1万コンテナãらã„å‹•ã‹ãã†ã¨ã—ã¦ã¿ã¾ã—ãŸã€‚久々ã«ä»Šå›žã¯è‡ªåˆ†ã®ä½œã£ãŸOSSã§ã¯ãªãã€OSSã®æ¤œè¨¼ãƒ¬ãƒãƒ¼ãƒˆçš„ãªè¨˜äº‹ã«ãªã‚Šã¾ã™ã€‚ haconiwaã¯åƒ•ã®å¥½ããªOSSã®ä¸€ã¤ã§ã€ãã‚Œã¯ãªãœã‹ã¨è¨€ã†ã¨ã€ haconiwaã§ã‚³ãƒ³ãƒ†ãƒŠã‚’作る際ã«ã€haconiwa実行環境ã«ã¯ã‚³ãƒ³ãƒ†ãƒŠã®è¦ç´ 機能ãŒå…¨ã¦å…¥ã£ã¦ã„ã‚‹å¿…è¦ã¯ãªã„ å¿…è¦ãªã‚³ãƒ³ãƒ†ãƒŠã®è¦ç´ 機能を簡å˜ã«çµ„ã¿åˆã‚ã›ã¦ã€è‡ªåˆ†ãŒå®Ÿç¾ã—ãŸã„コンテナã€ã‚ã‚‹ã„ã¯ã€ãã‚Œã«æº–ãšã‚‹ç’°å¢ƒã‚’作れる haconiwaã«ã‚ˆã‚‹ã‚³ãƒ³ãƒ†ãƒŠå®šç¾©ã‚’Rubyã®DSLã§è¡¨ç¾ã§ãã€å‹•çš„ãªè¨å®šã‚„組ã¿åˆã‚ã›ã®è¨å®šã‚’ç°¡å˜ã«ã‹ã‘ã‚‹ ã¨ã„ã†ã“ã¨ãŒã§ãã‚‹ã‹ã‚‰ã§ã™ã€‚ãã®ç‰¹æ€§ã‹ã‚‰ã€CentOS6ã®ã‚ˆ
Ruby 2.4.0 ã§å°Žå…¥äºˆå®šã® Integer Unification ã¾ã¨ã‚, å¤ä¼‘ã¿ã§åŒ—æµ·é“㸠- HsbtDiary(2016-08-29)
â– Ruby 2.4.0 ã§å°Žå…¥äºˆå®šã® Integer Unification ã¾ã¨ã‚ Ruby 2.4.0 ã§å°Žå…¥ãŒäºˆå®šã•ã‚Œã¦ã„ã‚‹ Integer Unification ãŒä¸Žãˆã‚‹ã§ã‚ã‚ㆠRuby アプリケーションã¸ã®å½±éŸ¿ã‚’ã¾ã¨ã‚ã¦ãŠã。 率直ã«ã¯ rb_cFixnum ã‚„ rb_cBignum ㌠2.4 ã‹ã‚‰ã¯è¦‹ãˆãªããªã‚‹ã®ã§ã€ãれらをå‚ç…§ã—ã¦ã„るよã†ãª native gem ãŒå¯¾å¿œã—ã¦ã„ãªã‘ã‚Œã°ãƒ“ルドã§ããªã„ãŸã‚アプリケーションãŒå‹•ã‹ãªããªã‚‹ã€‚ã˜ã‚ƒã‚ã€å¯¾å¿œã—ãŸãƒãƒ¼ã‚¸ãƒ§ãƒ³ã«å…¨ã¦ãƒãƒ¼ã‚¸ãƒ§ãƒ³ã‚¢ãƒƒãƒ—ã™ã‚Œã°ã„ã„ã˜ã‚ƒã‚“ã€ã¨ã„ã†è©±ãªã®ã ã‘ã© bundler ãŒè§£æ±ºã—ã¦ãれる dependency æ²¼ã¨çµ¡ã¿åˆã£ã¦ã€å˜ç´”ã«ã¯è§£æ±ºã§ããšã« 8 月ç¾åœ¨ã¯åŽ³ã—ã„状態ã«ãªã£ã¦ã„る。 json 㯠Ruby ㌠bundle ã—ã¦ã„る�ãƒãƒ¼ã‚¸ãƒ§ãƒ³ã§ã™ã§ã« Integer Unification 対応ãŒãªã•ã‚Œ
Using multiple connections in ActiveRecord
フィーãƒãƒ£ãƒ¼é–‹ç™ºã‹ã‚‰ ホールプãƒãƒ€ã‚¯ãƒˆé–‹ç™ºã¸ ~ 顧客価値ã¸å‘ãåˆã„続ã‘る挑戦 ~ @itohiro73 #開発生産性con_findy
Ruby Security Tools and Resources — Hakiri
Web security can be very confusing and frustrating at times. A lot of companies don’t pay enough attention to it until something bad happens and users’ data and safety are compromised. Ruby developers have a wealth of tools for efficient prototyping, testing, and continuous integration that are well known and widely accepted in the community. But what about security? An average Ruby developer woul
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GitHub - rr3tt/rumbda: Run ruby scripts on aws lambda.
Bug #12958: Breaking change in how `#round` works - Ruby master - Ruby Issue Tracking System
GitHub - puma/puma-dev: A tool to manage rack apps in development with puma
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