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| Dir : //opt/alt/ruby25/lib64/ruby/2.5.0/rubygems/basic_specification.rb |
# frozen_string_literal: true
##
# BasicSpecification is an abstract class which implements some common code
# used by both Specification and StubSpecification.
class Gem::BasicSpecification
##
# Allows installation of extensions for git: gems.
attr_writer :base_dir # :nodoc:
##
# Sets the directory where extensions for this gem will be installed.
attr_writer :extension_dir # :nodoc:
##
# Is this specification ignored for activation purposes?
attr_writer :ignored # :nodoc:
##
# The path this gemspec was loaded from. This attribute is not persisted.
attr_accessor :loaded_from
##
# Allows correct activation of git: and path: gems.
attr_writer :full_gem_path # :nodoc:
def initialize
internal_init
end
def self.default_specifications_dir
File.join(Gem.default_dir, "specifications", "default")
end
##
# The path to the gem.build_complete file within the extension install
# directory.
def gem_build_complete_path # :nodoc:
File.join extension_dir, 'gem.build_complete'
end
##
# True when the gem has been activated
def activated?
raise NotImplementedError
end
##
# Returns the full path to the base gem directory.
#
# eg: /usr/local/lib/ruby/gems/1.8
def base_dir
raise NotImplementedError
end
##
# Return true if this spec can require +file+.
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
def default_gem?
loaded_from &&
File.dirname(loaded_from) == self.class.default_specifications_dir
end
##
# Returns full path to the directory where gem's extensions are installed.
def extension_dir
@extension_dir ||= File.expand_path(File.join(extensions_dir, full_name)).untaint
end
##
# Returns path to the extensions directory.
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
def find_full_gem_path # :nodoc:
# TODO: also, shouldn't it default to full_name if it hasn't been written?
path = File.expand_path File.join(gems_dir, full_name)
path.untaint
path
end
private :find_full_gem_path
##
# The full path to the gem (install path + full name).
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
##
# 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.
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 paths in the gem to add to <code>$LOAD_PATH</code> when this gem is
# activated.
def full_require_paths
@full_require_paths ||=
begin
full_paths = raw_require_paths.map do |path|
File.join full_gem_path, path.untaint
end
full_paths << extension_dir if have_extensions?
full_paths
end
end
##
# The path to the data directory for this gem.
def datadir
# TODO: drop the extra ", gem_name" which is uselessly redundant
File.expand_path(File.join(gems_dir, full_name, "data", name)).untaint
end
##
# Full path of the target library file.
# If the file is not in this gem, return nil.
def to_fullpath path
if activated? then
@paths_map ||= {}
@paths_map[path] ||=
begin
fullpath = nil
suffixes = Gem.suffixes
suffixes.find do |suf|
full_require_paths.find do |dir|
File.file?(fullpath = "#{dir}/#{path}#{suf}")
end
end ? fullpath : nil
end
else
nil
end
end
##
# Returns the full path to this spec's gem directory.
# eg: /usr/local/lib/ruby/1.8/gems/mygem-1.0
def gem_dir
@gem_dir ||= File.expand_path File.join(gems_dir, full_name)
end
##
# Returns the full path to the gems directory containing this spec's
# gem directory. eg: /usr/local/lib/ruby/1.8/gems
def gems_dir
raise NotImplementedError
end
def internal_init # :nodoc:
@extension_dir = nil
@full_gem_path = nil
@gem_dir = nil
@ignored = nil
end
##
# Name of the gem
def name
raise NotImplementedError
end
##
# Platform of the gem
def platform
raise NotImplementedError
end
def raw_require_paths # :nodoc:
raise NotImplementedError
end
##
# Paths in the gem to add to <code>$LOAD_PATH</code> when this gem is
# activated.
#
# See also #require_paths=
#
# If you have an extension you do not need to add <code>"ext"</code> to the
# require path, the extension build process will copy the extension files
# into "lib" for you.
#
# The default value is <code>"lib"</code>
#
# Usage:
#
# # If all library files are in the root directory...
# spec.require_path = '.'
def require_paths
return raw_require_paths unless have_extensions?
[extension_dir].concat raw_require_paths
end
##
# Returns the paths to the source files for use with analysis and
# documentation tools. These paths are relative to full_gem_path.
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
##
# Return all files in this gem that match for +glob+.
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
##
# Returns a string usable in Dir.glob to match all requirable paths
# for this spec.
def lib_dirs_glob
dirs = if self.raw_require_paths
if self.raw_require_paths.size > 1 then
"{#{self.raw_require_paths.join(',')}}"
else
self.raw_require_paths.first
end
else
"lib" # default value for require_paths for bundler/inline
end
"#{self.full_gem_path}/#{dirs}".dup.untaint
end
##
# Return a Gem::Specification from this gem
def to_spec
raise NotImplementedError
end
##
# Version of the gem
def version
raise NotImplementedError
end
##
# 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.
def stubbed?
raise NotImplementedError
end
def this; self; end
private
def have_extensions?; !extensions.empty?; end
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
end