Class: Rails::VendorGemSourceIndex

Inherits:
Object
  • Object
show all
Includes:
Enumerable
Defined in:
lib/rails/vendor_gem_source_index.rb

Constant Summary collapse

@@silence_spec_warnings = 
false

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(installed_index, vendor_dir = Rails::GemDependency.unpacked_path) ⇒ VendorGemSourceIndex

Returns a new instance of VendorGemSourceIndex.



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# File 'lib/rails/vendor_gem_source_index.rb', line 26

def initialize(installed_index, vendor_dir=Rails::GemDependency.unpacked_path)
  @installed_source_index = installed_index
  @vendor_dir = vendor_dir
  refresh!
end

Instance Attribute Details

#installed_source_index ⇒ Object (readonly)

Returns the value of attribute installed_source_index.



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# File 'lib/rails/vendor_gem_source_index.rb', line 13

def installed_source_index
  @installed_source_index
end

#vendor_source_index ⇒ Object (readonly)

Returns the value of attribute vendor_source_index.



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# File 'lib/rails/vendor_gem_source_index.rb', line 14

def vendor_source_index
  @vendor_source_index
end

Class Method Details

.silence_spec_warnings ⇒ Object 



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# File 'lib/rails/vendor_gem_source_index.rb', line 18

def self.silence_spec_warnings
  @@silence_spec_warnings
end

.silence_spec_warnings=(v) ⇒ Object 



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# File 'lib/rails/vendor_gem_source_index.rb', line 22

def self.silence_spec_warnings=(v)
  @@silence_spec_warnings = v
end

Instance Method Details

#add_spec(spec) ⇒ Object 



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# File 'lib/rails/vendor_gem_source_index.rb', line 127

def add_spec(spec)
  @vendor_source_index.add_spec spec
end

#each(&block) ⇒ Object 



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# File 'lib/rails/vendor_gem_source_index.rb', line 122

def each(&block)
  @vendor_source_index.each(&block)
  @installed_source_index.each(&block)
end

#find_name(*args) ⇒ Object 



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# File 'lib/rails/vendor_gem_source_index.rb', line 113

def find_name(*args)
  @installed_source_index.find_name(*args) + @vendor_source_index.find_name(*args)
end

#load_specification(gem_dir) ⇒ Object 



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# File 'lib/rails/vendor_gem_source_index.rb', line 108

def load_specification(gem_dir)
  spec_file = File.join(gem_dir, '.specification')
  YAML.load_file(spec_file) if File.exist?(spec_file)
end

#refresh! ⇒ Object 



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# File 'lib/rails/vendor_gem_source_index.rb', line 32

def refresh!
  # reload the installed gems
  @installed_source_index.refresh!
  vendor_gems = {}

  # handle vendor Rails gems - they are identified by having loaded_from set to ""
  # we add them manually to the list, so that other gems can find them via dependencies
  Gem.loaded_specs.each do |n, s|
    next unless s.loaded_from.empty?
    vendor_gems[s.full_name] = s
  end

  # load specifications from vendor/gems
  Dir[File.join(Rails::GemDependency.unpacked_path, '*')].each do |d|
    dir_name = File.basename(d)
    dir_version = version_for_dir(dir_name)
    spec = load_specification(d)
    if spec
      if spec.full_name != dir_name
        # mismatched directory name and gem spec - produced by 2.1.0-era unpack code
        if dir_version
          # fix the spec version - this is not optimal (spec.files may be wrong)
          # but it's better than breaking apps. Complain to remind users to get correct specs.
          # use ActiveSupport::Deprecation.warn, as the logger is not set yet
          $stderr.puts("config.gem: Unpacked gem #{dir_name} in vendor/gems has a mismatched specification file."+
                       " Run 'rake gems:refresh_specs' to fix this.") unless @@silence_spec_warnings
          spec.version = dir_version
        else
          $stderr.puts("config.gem: Unpacked gem #{dir_name} in vendor/gems is not in a versioned directory"+
                       "(should be #{spec.full_name}).") unless @@silence_spec_warnings
          # continue, assume everything is OK
        end
      end
    else
      # no spec - produced by early-2008 unpack code
      # emulate old behavior, and complain.
      $stderr.puts("config.gem: Unpacked gem #{dir_name} in vendor/gems has no specification file."+
                   " Run 'rake gems:refresh_specs' to fix this.") unless @@silence_spec_warnings
      if dir_version
        spec = Gem::Specification.new
        spec.version = dir_version
        spec.require_paths = ['lib']
        ext_path = File.join(d, 'ext')
        spec.require_paths << 'ext' if File.exist?(ext_path)
        spec.name = /^(.*)-[^-]+$/.match(dir_name)[1]
        files = ['lib']
        # set files to everything in lib/
        files += Dir[File.join(d, 'lib', '*')].map { |v| v.gsub(/^#{d}\//, '') }
        files += Dir[File.join(d, 'ext', '*')].map { |v| v.gsub(/^#{d}\//, '') } if ext_path
        spec.files = files
      else
        $stderr.puts("config.gem: Unpacked gem #{dir_name} in vendor/gems not in a versioned directory."+
                     " Giving up.") unless @@silence_spec_warnings
        next
      end
    end
    spec.loaded_from = File.join(d, '.specification')
    # finally, swap out full_gem_path
    # it would be better to use a Gem::Specification subclass, but the YAML loads an explicit class
    class << spec
      def full_gem_path
        path = File.join installation_path, full_name
        return path if File.directory? path
        File.join installation_path, original_name
      end
    end
    vendor_gems[File.basename(d)] = spec
  end
  @vendor_source_index = Gem::SourceIndex.new(vendor_gems)
end

#remove_spec(spec) ⇒ Object 



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# File 'lib/rails/vendor_gem_source_index.rb', line 131

def remove_spec(spec)
  @vendor_source_index.remove_spec spec
end

#search(*args) ⇒ Object 



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# File 'lib/rails/vendor_gem_source_index.rb', line 117

def search(*args)
  # look for vendor gems, and then installed gems - later elements take priority
  @installed_source_index.search(*args) + @vendor_source_index.search(*args)
end

#size ⇒ Object 



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# File 'lib/rails/vendor_gem_source_index.rb', line 135

def size
  @vendor_source_index.size + @installed_source_index.size
end

#version_for_dir(d) ⇒ Object 



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# File 'lib/rails/vendor_gem_source_index.rb', line 103

def version_for_dir(d)
  matches = /-([^-]+)$/.match(d)
  Gem::Version.new(matches[1]) if matches
end