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
  Gem.default_specifications_dir
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 57
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 66
def base_dir
  raise NotImplementedError
end

base_dir_priority(gem_path) click to toggle source

Gems higher up in gem_path take precedence

# File lib/rubygems/basic_specification.rb, line 116
def base_dir_priority(gem_path)
  gem_path.index(base_dir) || gem_path.size
end

contains_requirable_file?(file) click to toggle source

Return true if this spec can require file.

# File lib/rubygems/basic_specification.rb, line 73
def contains_requirable_file?(file)
  if ignored?
    if platform == Gem::Platform::RUBY || Gem::Platform.local === platform
      warn "Ignoring #{full_name} because its extensions are not built. " \
           "Try: gem pristine #{name} --version #{version}"
    end

    return false
  end

  is_soext = file.end_with?(".so", ".o")

  if is_soext
    have_file? file.delete_suffix(File.extname(file)), Gem.dynamic_library_suffixes
  else
    have_file? file, Gem.suffixes
  end
end

datadir() click to toggle source

The path to the data directory for this gem.

# File lib/rubygems/basic_specification.rb, line 198
def datadir
  # TODO: drop the extra ", gem_name" which is uselessly redundant
  File.expand_path(File.join(gems_dir, full_name, "data", name))
end

default_gem?() click to toggle source

# File lib/rubygems/basic_specification.rb, line 101
def default_gem?
  !loaded_from.nil? &&
    File.dirname(loaded_from) == Gem.default_specifications_dir
end

default_gem_priority() click to toggle source

Regular gems take precedence over default gems

# File lib/rubygems/basic_specification.rb, line 109
def default_gem_priority
  default_gem? ? 1 : -1
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 123
def extension_dir
  @extension_dir ||= File.expand_path(File.join(extensions_dir, full_name))
end

extensions_dir() click to toggle source

Returns path to the extensions directory.

# File lib/rubygems/basic_specification.rb, line 130
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 146
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 157
def full_name
  if platform == Gem::Platform::RUBY || platform.nil?
    "#{name}-#{version}"
  else
    "#{name}-#{version}-#{platform}"
  end
end

full_name_with_location() click to toggle source

Returns the full name of this Gem (see ‘Gem::BasicSpecification#full_name`). Information about where the gem is installed is also included if not installed in the default GEM_HOME.

# File lib/rubygems/basic_specification.rb, line 170
def full_name_with_location
  if base_dir != Gem.dir
    "#{full_name} in #{base_dir}"
  else
    full_name
  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 182
def full_require_paths
  @full_require_paths ||=
    begin
      full_paths = raw_require_paths.map do |path|
        File.join full_gem_path, path
      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 225
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 233
def gems_dir
  raise NotImplementedError
end

ignored?() click to toggle source

Return true if this spec should be ignored because it’s missing extensions.

# File lib/rubygems/basic_specification.rb, line 95
def ignored?
  return @ignored unless @ignored.nil?

  @ignored = missing_extensions?
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 323
def lib_dirs_glob
  dirs = if raw_require_paths
    if raw_require_paths.size > 1
      "{#{raw_require_paths.join(",")}}"
    else
      raw_require_paths.first
    end
  else
    "lib" # default value for require_paths for bundler/inline
  end

  "#{full_gem_path}/#{dirs}"
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 306
def matches_for_glob(glob) # TODO: rename?
  glob = File.join(lib_dirs_glob, glob)

  Dir[glob]
end

name() click to toggle source

Name of the gem

# File lib/rubygems/basic_specification.rb, line 247
def name
  raise NotImplementedError
end

platform() click to toggle source

Platform of the gem

# File lib/rubygems/basic_specification.rb, line 254
def platform
  raise NotImplementedError
end

plugins() click to toggle source

Returns the list of plugins in this spec.

# File lib/rubygems/basic_specification.rb, line 315
def plugins
  matches_for_glob("rubygems#{Gem.plugin_suffix_pattern}")
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 279
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 289
def source_paths
  paths = raw_require_paths.dup

  if have_extensions?
    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 355
def stubbed?
  raise NotImplementedError
end

this() click to toggle source

# File lib/rubygems/basic_specification.rb, line 359
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 207
def to_fullpath(path)
  if activated?
    @paths_map ||= {}
    Gem.suffixes.each do |suf|
      full_require_paths.each do |dir|
        fullpath = "#{dir}/#{path}#{suf}"
        next unless File.file?(fullpath)
        @paths_map[path] ||= fullpath
      end
    end
    @paths_map[path]
  end
end

to_spec() click to toggle source

Return a Gem::Specification from this gem

# File lib/rubygems/basic_specification.rb, line 340
def to_spec
  raise NotImplementedError
end

version() click to toggle source

Version of the gem

# File lib/rubygems/basic_specification.rb, line 347
def version
  raise NotImplementedError
end

Private Instance Methods

have_extensions?() click to toggle source

# File lib/rubygems/basic_specification.rb, line 365
def have_extensions?
  !extensions.empty?
end

have_file?(file, suffixes) click to toggle source

# File lib/rubygems/basic_specification.rb, line 369
def have_file?(file, suffixes)
  return true if raw_require_paths.any? do |path|
    base = File.join(gems_dir, full_name, path, file)
    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