| # Ways to execute a shell script in Ruby | |
| # Example Script - Joseph Pecoraro | |
| cmd = "echo 'hi'" # Sample string that can be used | |
| # 1. Kernel#` - commonly called backticks - `cmd` | |
| # This is like many other languages, including bash, PHP, and Perl | |
| # Synchronous (blocking) | |
| # Returns the output of the shell command | |
| # Docs: http://ruby-doc.org/core/classes/Kernel.html#M001111 |
| module ActiveRecord | |
| # Allows embedding of ActiveRecord models. | |
| # | |
| # Embedding other ActiveRecord models is a composition of the two | |
| # and leads to the following behaviour: | |
| # | |
| # - Nested attributes are accepted on the parent without the _attributes suffix | |
| # - Mass assignment security allows the embedded attributes | |
| # - Embedded models are destroyed with the parent when not appearing in an update again |
| # for some reason active record doesn't include a simple way to serialize to | |
| # cache. this simple trick will take you far | |
| # | |
| # usage: | |
| # | |
| # user = User.find(id) | |
| # | |
| # key = user.to_cache | |
| # | |
| # user = User.from_cache(key) |
| def bash_escape(argument) | |
| "$'" + argument.gsub("\\'", '\\\\\&').gsub("'", "\\\\'") + "'" | |
| end | |
| ruby_code = "puts 'something'" | |
| command = "ruby -e #{bash_escape ruby_code}" | |
| puts "ssh server #{bash_escape command}" # => ssh server $'ruby -e $\'puts \\\'something\\\'\'' |
| module Lock | |
| extend self | |
| delegate :connection, :to => ActiveRecord::Base | |
| def sync(*args) | |
| lock = Zlib.crc32 args.join | |
| obtain lock | |
| yield | |
| ensure | |
| release lock |
| require 'benchmark' | |
| module Capistrano::Benchmark | |
| def self.included(base) | |
| base.class_eval do | |
| alias execute_task_without_benchmark execute_task | |
| alias execute_task execute_task_with_benchmark | |
| end | |
| end |
| class @SortableTable | |
| constructor: (table, options) -> | |
| @table = $(table).children('tbody') | |
| @columnSelector = options.columnSelector || 'th' | |
| @iconSelector = options.iconSelector | |
| @rowMapper = options.rowMapper | |
| @afterSort = options.afterSort | |
| @enable() | |
| getColumn: (element) -> |
This installs a patched ruby 1.9.3-p327 with various performance improvements and a backported COW-friendly GC, all courtesy of funny-falcon.
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.
| # "python-like" import | |
| load path, true # => will load new constants and methods under anonymous module | |
| Module.nesting.first # => inside loaded file will return the current namespace | |
| ### | |
| module PythonImport | |
| def import(path) | |
| load 'importer.rb', true |
| #!/usr/bin/env ruby | |
| require 'epath' | |
| bom = "\xEF\xBB\xBF".force_encoding('binary') | |
| Path.glob('**/*.rb') do |file| | |
| next if file.binread(3) == bom | |
| previous = file.binread | |
| file.write bom + previous | |
| end |
