Class: Milkshake::Environment

Inherits:
Object
  • Object
show all
Defined in:
lib/milkshake/environment.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(cache, options = {}) ⇒ Environment

Returns a new instance of Environment.



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# File 'lib/milkshake/environment.rb', line 15

def initialize(cache, options={})
  @cache   = cache
  @options = {'gems' => {}}.merge(options)
  @options['gems']['rack-gem-assets'] = { 'lib' => 'rack/gem_assets' }
  
  Milkshake.extender.extend_rubygems!
  
  reload!
end

Instance Attribute Details

#cache ⇒ Object (readonly)

Returns the value of attribute cache.



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# File 'lib/milkshake/environment.rb', line 5

def cache
  @cache
end

#gems ⇒ Object (readonly)

Returns the value of attribute gems.



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# File 'lib/milkshake/environment.rb', line 5

def gems
  @gems
end

#options ⇒ Object (readonly)

Returns the value of attribute options.



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# File 'lib/milkshake/environment.rb', line 5

def options
  @options
end

Class Method Details

.load(cache, path) ⇒ Object 



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# File 'lib/milkshake/environment.rb', line 7

def self.load(cache, path)
  if File.exist?(path)
    new cache, YAML.load_file(path)
  else
    new cache
  end
end

Instance Method Details

#gem_dependencies ⇒ Object 



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# File 'lib/milkshake/environment.rb', line 69

def gem_dependencies
  @order.inject([]) do |deps, name|
    options = @gems[name].inject({}) do |memo, (key, value)|
      memo[key.to_sym] = value
      memo
    end
    deps << Rails::GemDependency.new(name, options)
  end
end

#gemspecs ⇒ Object 



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# File 'lib/milkshake/environment.rb', line 63

def gemspecs
  @ordered_gemspecs ||= @order.collect do |name|
    gemspecs_by_name[name]
  end.compact
end

#gemspecs_by_name ⇒ Object 



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# File 'lib/milkshake/environment.rb', line 59

def gemspecs_by_name
  @gemspecs ||= {}
end

#locale_paths ⇒ Object 



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# File 'lib/milkshake/environment.rb', line 79

def locale_paths
  @cache.key('environment.locale_paths') do
    if Gem::Version.new(Rails.version) < Gem::Version.new("2.3.4")
      locale_paths = self.gemspecs.inject([]) do |paths, gemspec|
        locale_path = File.join(gemspec.full_gem_path, 'config', 'locales')
        if File.directory?(locale_path)
          paths.push(Dir[File.join(locale_path, '*.{rb,yml}')])
        else
          paths
        end
      end
      locale_paths.flatten!
    else
      []
    end
  end
end

#reload! ⇒ Object 



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# File 'lib/milkshake/environment.rb', line 25

def reload!
  resolver  = nil
  index = Gem::SourceIndex.from_installed_gems
  
  @gems = @cache.key('environment.gems') do
    resolver ||= DependencyResolver.load_for(@options['gems'])
    resolver.gems
  end
  
  @gemspecs = nil
  @gemspec_versions = @cache.key('environment.gemspec-versions') do
    resolver ||= DependencyResolver.load_for(@options['gems'])
    specs = resolver.specs
    @gemspecs = specs
    specs.inject({}) { |memo, (name, spec)| memo[name] = spec.version.to_s ; memo  }
  end
  
  @gemspecs ||= @gemspec_versions.inject({}) do |memo, (name, version)|
    specs = index.search(Gem::Dependency.new(name, version))
    specs.sort! do |left,right|
      right.version <=> left.version
    end
    memo[name] = specs.first
    memo
  end
  
  @order = @cache.key('environment.gems.order') do
    resolver ||= DependencyResolver.load_for(@options['gems'])
    resolver.names
  end
  
  @ordered_gemspecs = nil
end