class Gem::BasicSpecification

BasicSpecification is an abstract class which implements some common code used by both Specification and StubSpecification.

Attributes

loaded_from[RW]

The path this gemspec was loaded from. This attribute is not persisted.

Public Class Methods

default_specifications_dir() click to toggle source

# File lib/rubygems/basic_specification.rb, line 37
def self.default_specifications_dir
  File.join(Gem.default_dir, "specifications", "default")
end

new() click to toggle source

# File lib/rubygems/basic_specification.rb, line 33
def initialize
  internal_init
end

Public Instance Methods

activated?() click to toggle source

True when the gem has been activated

# File lib/rubygems/basic_specification.rb, line 52
def activated?
  raise NotImplementedError
end

base_dir() click to toggle source

Returns the full path to the base gem directory.

eg: /usr/local/lib/ruby/gems/1.8

# File lib/rubygems/basic_specification.rb, line 61
def base_dir
  raise NotImplementedError
end

contains_requirable_file?(file) click to toggle source

Return true if this spec can require file.

# File lib/rubygems/basic_specification.rb, line 68
def contains_requirable_file? file
  if @ignored then
    return false
  elsif missing_extensions? then
    @ignored = true

    warn "Ignoring #{full_name} because its extensions are not built.  " +
      "Try: gem pristine #{name} --version #{version}"
    return false
  end

  have_file? file, Gem.suffixes
end

datadir() click to toggle source

The path to the data directory for this gem.

# File lib/rubygems/basic_specification.rb, line 154
  def datadir
# TODO: drop the extra ", gem_name" which is uselessly redundant
    File.expand_path(File.join(gems_dir, full_name, "data", name)).untaint
  end

default_gem?() click to toggle source

# File lib/rubygems/basic_specification.rb, line 82
def default_gem?
  loaded_from &&
    File.dirname(loaded_from) == self.class.default_specifications_dir
end

extension_dir() click to toggle source

Returns full path to the directory where gem's extensions are installed.

# File lib/rubygems/basic_specification.rb, line 90
def extension_dir
  @extension_dir ||= File.expand_path(File.join(extensions_dir, full_name)).untaint
end

extensions_dir() click to toggle source

Returns path to the extensions directory.

# File lib/rubygems/basic_specification.rb, line 97
def extensions_dir
  Gem.default_ext_dir_for(base_dir) ||
    File.join(base_dir, 'extensions', Gem::Platform.local.to_s,
              Gem.extension_api_version)
end

full_gem_path() click to toggle source

The full path to the gem (install path + full name).

# File lib/rubygems/basic_specification.rb, line 115
def full_gem_path
  # TODO: This is a heavily used method by gems, so we'll need
  # to aleast just alias it to #gem_dir rather than remove it.
  @full_gem_path ||= find_full_gem_path
end

full_name() click to toggle source

Returns the full name (name-version) of this Gem. Platform information is included (name-version-platform) if it is specified and not the default Ruby platform.

# File lib/rubygems/basic_specification.rb, line 126
def full_name
  if platform == Gem::Platform::RUBY or platform.nil? then
    "#{name}-#{version}".dup.untaint
  else
    "#{name}-#{version}-#{platform}".dup.untaint
  end
end

full_require_paths() click to toggle source

Full paths in the gem to add to $LOAD_PATH when this gem is activated.

# File lib/rubygems/basic_specification.rb, line 138
def full_require_paths
  @full_require_paths ||=
  begin
    full_paths = raw_require_paths.map do |path|
      File.join full_gem_path, path.untaint
    end

    full_paths << extension_dir if have_extensions?

    full_paths
  end
end

gem_dir() click to toggle source

Returns the full path to this spec's gem directory. eg: /usr/local/lib/ruby/1.8/gems/mygem-1.0

# File lib/rubygems/basic_specification.rb, line 185
def gem_dir
  @gem_dir ||= File.expand_path File.join(gems_dir, full_name)
end

gems_dir() click to toggle source

Returns the full path to the gems directory containing this spec's gem directory. eg: /usr/local/lib/ruby/1.8/gems

# File lib/rubygems/basic_specification.rb, line 193
def gems_dir
  raise NotImplementedError
end

lib_dirs_glob() click to toggle source

Returns a string usable in Dir.glob to match all requirable paths for this spec.

# File lib/rubygems/basic_specification.rb, line 277
def lib_dirs_glob
  dirs = if self.require_paths.size > 1 then
           "{#{self.require_paths.join(',')}}"
         else
           self.require_paths.first
         end

  "#{self.full_gem_path}/#{dirs}".dup.untaint
end

matches_for_glob(glob) click to toggle source

Return all files in this gem that match for glob.

# File lib/rubygems/basic_specification.rb, line 266
def matches_for_glob glob # TODO: rename?
  # TODO: do we need these?? Kill it
  glob = File.join(self.lib_dirs_glob, glob)

  Dir[glob].map { |f| f.untaint } # FIX our tests are broken, run w/ SAFE=1
end

name() click to toggle source

Name of the gem

# File lib/rubygems/basic_specification.rb, line 207
def name
  raise NotImplementedError
end

platform() click to toggle source

Platform of the gem

# File lib/rubygems/basic_specification.rb, line 214
def platform
  raise NotImplementedError
end

require_paths() click to toggle source

Paths in the gem to add to $LOAD_PATH when this gem is activated.

See also require_paths=

If you have an extension you do not need to add "ext" to the require path, the extension build process will copy the extension files into “lib” for you.

The default value is "lib"

Usage:

# If all library files are in the root directory...
spec.require_path = '.'

# File lib/rubygems/basic_specification.rb, line 239
def require_paths
  return raw_require_paths unless have_extensions?

  [extension_dir].concat raw_require_paths
end

source_paths() click to toggle source

Returns the paths to the source files for use with analysis and documentation tools. These paths are relative to full_gem_path.

# File lib/rubygems/basic_specification.rb, line 249
def source_paths
  paths = raw_require_paths.dup

  if have_extensions? then
    ext_dirs = extensions.map do |extension|
      extension.split(File::SEPARATOR, 2).first
    end.uniq

    paths.concat ext_dirs
  end

  paths.uniq
end

stubbed?() click to toggle source

Whether this specification is stubbed - i.e. we have information about the gem from a stub line, without having to evaluate the entire gemspec file.

# File lib/rubygems/basic_specification.rb, line 305
def stubbed?
  raise NotImplementedError
end

this() click to toggle source

# File lib/rubygems/basic_specification.rb, line 309
def this; self; end

to_fullpath(path) click to toggle source

Full path of the target library file. If the file is not in this gem, return nil.

# File lib/rubygems/basic_specification.rb, line 163
def to_fullpath path
  if activated? then
    @paths_map ||= {}
    @paths_map[path] ||=
    begin
      fullpath = nil
      suffixes = Gem.suffixes
      suffixes.find do |suf|
        full_require_paths.find do |dir|
          File.file?(fullpath = "#{dir}/#{path}#{suf}")
        end
      end ? fullpath : nil
    end
  else
    nil
  end
end

to_spec() click to toggle source

Return a Gem::Specification from this gem

# File lib/rubygems/basic_specification.rb, line 290
def to_spec
  raise NotImplementedError
end

version() click to toggle source

Version of the gem

# File lib/rubygems/basic_specification.rb, line 297
def version
  raise NotImplementedError
end

Private Instance Methods

have_extensions?() click to toggle source

# File lib/rubygems/basic_specification.rb, line 313
def have_extensions?; !extensions.empty?; end

have_file?(file, suffixes) click to toggle source

# File lib/rubygems/basic_specification.rb, line 315
def have_file? file, suffixes
  return true if raw_require_paths.any? do |path|
    base = File.join(gems_dir, full_name, path.untaint, file).untaint
    suffixes.any? { |suf| File.file? base + suf }
  end

  if have_extensions?
    base = File.join extension_dir, file
    suffixes.any? { |suf| File.file? base + suf }
  else
    false
  end
end