| # 30 minutes Lisp in Ruby | |
| # Hong Minhee <http://dahlia.kr/> | |
| # | |
| # This Lisp implementation does not provide a s-expression reader. | |
| # Instead, it uses Ruby syntax like following code: | |
| # | |
| # [:def, :factorial, | |
| # [:lambda, [:n], | |
| # [:if, [:"=", :n, 1], | |
| # 1, |
| # lib/tasks/deploy.rake | |
| namespace :deploy do | |
| desc 'Deploy to staging environment' | |
| task :staging do | |
| exec 'mina deploy -f config/deploy/staging.rb' | |
| end | |
| end |
| #!/bin/bash | |
| set -e # exit on error | |
| ### README | |
| # * installs your desired ruby versions using rbenv | |
| # ** including openssl (needed by bundler) | |
| # ** including sqlite (probably needed for rails apps) | |
| # | |
| # Before you start: | |
| # * put ssh-keys in place |
This installs a patched ruby 1.9.3-p484 with the railsexpress patchsets: https://github.com/skaes/rvm-patchsets
You will also need a C Compiler. If you're on Linux, you probably already have one or know how to install one. On OS X, you should install XCode, and brew install autoconf using homebrew.
| - http://www.coffeepowered.net/2009/06/13/fine-tuning-your-garbage-collector/ | |
| - http://snaprails.tumblr.com/post/241746095/rubys-gc-configuration | |
| article’s settings: ("spec spec" took 17-23!sec) | |
| export RUBY_HEAP_MIN_SLOTS=1250000 | |
| export RUBY_HEAP_SLOTS_INCREMENT=100000 | |
| export RUBY_HEAP_SLOTS_GROWTH_FACTOR=1 | |
| export RUBY_GC_MALLOC_LIMIT=30000000 | |
| export RUBY_HEAP_FREE_MIN=12500 |
| ("00000001".to_i(2) ^ "0110".to_i(2)).to_s(2) | |
| # reuturn "111" | |
| #mongodb | |
| db.senior_questions.find({bankID:11, $where: "(Number(this.categoryID).toString(2) ^ 10000000).toString(2).replace(/0/g,'').length == 11"}) | |
| #postgresql | |
| select length(replace(((192::bit(16) # id::bit(16)) :: text), '0', '')) as comparsion, id, name from accounts order by comparsion limit 1; | |
| #mysql |
| require 'rake' | |
| require 'optparse' | |
| # Rake task for creating an account | |
| # rake user:create -- --user test@example.com --pass 123 | |
| # exit at the end will make sure that the extra arguments won't be interpreted as rake task. | |
| namespace :user do |args| | |
| desc 'Creates user account with given credentials: rake user:create' | |
| # environment is required to have access to Rails models | |
| task :create => :environment do | |
| options = {} |
| var mongo = require('mongoskin'); | |
| var db = mongo.db('127.0.0.1:27017/test'); | |
| // create index: | |
| // key, unique, callback | |
| db.collection('user').ensureIndex([['name', 1]], true, function(err, replies){}); | |
| // bind method: db.user ===> db.collection('user') | |
| db.bind('user'); |
| var encoded = new Buffer(imagedata, 'binary').toString('base64'); | |
| var decoded = new Buffer(encoded, 'base64').toString('binary'); |
| "UTF-8 string".encode('GB18030').force_encoding(::Encoding::BINARY) |
