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  • Committer: Mark Mims
  • Date: 2013-08-29 17:47:43 UTC
  • mfrom: (9.1.5 rack)
  • Revision ID: mark.mims@canonical.com-20130829174743-ltmqllm9nkbfzqpa
merging ~pavel-pachkovskij/charms/precise/rack/trunk as per https://code.launchpad.net/~pavel-pachkovskij/charms/precise/rack/trunk/+merge/179721

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cookbooks/juju/libraries/juju/ruby_helpers.rb
 
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require 'shellwords'
 
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require 'dotenv'
 
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require 'foreman/procfile'
 
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module RubyHelpers
 
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  def run(command)
 
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    value = %x{ #{command} 2>&1 }.strip
 
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    value.empty? ? nil : value
 
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  end
 
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  def run_with_wrap_bundle(commands)
 
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    run(wrap_bundle(commands))
 
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  end
 
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  def wrap_bundle(commands)
 
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    [
 
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      'unset BUNDLE_GEMFILE RUBYOPT GEM_HOME',
 
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      hash_to_shell_args(dotenv_args).map{ |args| "export #{args}" },
 
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      commands
 
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    ].flatten.join(';')
 
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  end
 
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  def shell_quote(value)
 
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    Shellwords.escape(value)
 
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  end
 
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  def hash_to_shell_args(hash)
 
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    hash.map { |key, value| "#{key}=#{value}" }
 
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  end
 
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  def dotenv_args
 
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    ::File.exists?(dotenv_path) ? Dotenv::Environment.new(dotenv_path) : {}
 
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  end
 
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private
 
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  def dotenv_path
 
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    "#{node[:rack][:root]}/shared/.env"
 
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  end
 
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end
 
 
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