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ruby--ruby/lib/rubygems/specification.rb
drbrain 90dfc8f99e * lib/rubygems: Update to RubyGems 1.8.11. Move Deprecate into the 
Gem namespace.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@33386 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2011-10-03 22:15:47 +00:00

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#--
# Copyright 2006 by Chad Fowler, Rich Kilmer, Jim Weirich and others.
# All rights reserved.
# See LICENSE.txt for permissions.
#++
require 'rubygems/version'
require 'rubygems/requirement'
require 'rubygems/platform'
require "rubygems/deprecate"
# :stopdoc:
class Date; end # for ruby_code if date.rb wasn't required
# :startdoc:
##
# The Specification class contains the metadata for a Gem. Typically
# defined in a .gemspec file or a Rakefile, and looks like this:
#
# spec = Gem::Specification.new do |s|
# s.name = 'example'
# s.version = '1.0'
# s.summary = 'Example gem specification'
# ...
# end
#
# For a great way to package gems, use Hoe.
class Gem::Specification
##
# The the version number of a specification that does not specify one
# (i.e. RubyGems 0.7 or earlier).
NONEXISTENT_SPECIFICATION_VERSION = -1
##
# The specification version applied to any new Specification instances
# created. This should be bumped whenever something in the spec format
# changes.
#
# Specification Version History:
#
# spec ruby
# ver ver yyyy-mm-dd description
# -1 <0.8.0 pre-spec-version-history
# 1 0.8.0 2004-08-01 Deprecated "test_suite_file" for "test_files"
# "test_file=x" is a shortcut for "test_files=[x]"
# 2 0.9.5 2007-10-01 Added "required_rubygems_version"
# Now forward-compatible with future versions
# 3 1.3.2 2009-01-03 Added Fixnum validation to specification_version
#--
# When updating this number, be sure to also update #to_ruby.
#
# NOTE RubyGems < 1.2 cannot load specification versions > 2.
CURRENT_SPECIFICATION_VERSION = 3
# :stopdoc:
# version => # of fields
MARSHAL_FIELDS = { -1 => 16, 1 => 16, 2 => 16, 3 => 17 }
today = Time.now.utc
TODAY = Time.utc(today.year, today.month, today.day)
# :startdoc:
##
# List of attribute names: [:name, :version, ...]
@@required_attributes = [:rubygems_version,
:specification_version,
:name,
:version,
:date,
:summary,
:require_paths]
##
# Map of attribute names to default values.
@@default_value = {
:authors => [],
:autorequire => nil,
:bindir => 'bin',
:cert_chain => [],
:date => TODAY,
:dependencies => [],
:description => nil,
:email => nil,
:executables => [],
:extensions => [],
:extra_rdoc_files => [],
:files => [],
:homepage => nil,
:licenses => [],
:name => nil,
:platform => Gem::Platform::RUBY,
:post_install_message => nil,
:rdoc_options => [],
:require_paths => ['lib'],
:required_ruby_version => Gem::Requirement.default,
:required_rubygems_version => Gem::Requirement.default,
:requirements => [],
:rubyforge_project => nil,
:rubygems_version => Gem::VERSION,
:signing_key => nil,
:specification_version => CURRENT_SPECIFICATION_VERSION,
:summary => nil,
:test_files => [],
:version => nil,
}
@@attributes = @@default_value.keys.sort_by { |s| s.to_s }
@@array_attributes = @@default_value.reject { |k,v| v != [] }.keys
@@nil_attributes, @@non_nil_attributes = @@default_value.keys.partition { |k|
@@default_value[k].nil?
}
######################################################################
# :section: Required gemspec attributes
##
# This gem's name
attr_accessor :name
##
# This gem's version
attr_reader :version
##
# Paths in the gem to add to $LOAD_PATH when this gem is activated.
#
# The default ['lib'] is typically sufficient.
attr_accessor :require_paths
##
# The version of RubyGems used to create this gem.
#
# Do not set this, it is set automatically when the gem is packaged.
attr_accessor :rubygems_version
##
# The Gem::Specification version of this gemspec.
#
# Do not set this, it is set automatically when the gem is packaged.
attr_accessor :specification_version
##
# A short summary of this gem's description. Displayed in `gem list -d`.
#
# The description should be more detailed than the summary. For example,
# you might wish to copy the entire README into the description.
attr_reader :summary
######################################################################
# :section: Optional gemspec attributes
##
# Autorequire was used by old RubyGems to automatically require a file.
#
# Deprecated: It is neither supported nor functional.
attr_accessor :autorequire
##
# The path in the gem for executable scripts. Usually 'bin'
attr_accessor :bindir
##
# The certificate chain used to sign this gem. See Gem::Security for
# details.
attr_accessor :cert_chain
##
# A long description of this gem
attr_reader :description
##
# Sets the default executable for this gem.
#
# Deprecated: You must now specify the executable name to Gem.bin_path.
attr_writer :default_executable
##
# A contact email for this gem
#
# If you are providing multiple authors and multiple emails they should be
# in the same order such that:
#
# Hash[*spec.authors.zip(spec.emails).flatten]
#
# Gives a hash of author name to email address.
attr_accessor :email
##
# The URL of this gem's home page
attr_accessor :homepage
##
# True when this gemspec has been activated. This attribute is not persisted.
attr_accessor :loaded # :nodoc:
alias :loaded? :loaded # :nodoc:
##
# True when this gemspec has been activated. This attribute is not persisted.
attr_accessor :activated
alias :activated? :activated
##
# Path this gemspec was loaded from. This attribute is not persisted.
attr_reader :loaded_from
##
# Allows deinstallation of gems with legacy platforms.
attr_writer :original_platform # :nodoc:
##
# A message that gets displayed after the gem is installed
attr_accessor :post_install_message
##
# The version of ruby required by this gem
attr_reader :required_ruby_version
##
# The RubyGems version required by this gem
attr_reader :required_rubygems_version
##
# The rubyforge project this gem lives under. i.e. RubyGems'
# rubyforge_project is "rubygems".
attr_accessor :rubyforge_project
##
# The key used to sign this gem. See Gem::Security for details.
attr_accessor :signing_key
def self._all # :nodoc:
unless defined?(@@all) && @@all then
specs = []
self.dirs.reverse_each { |dir|
Dir[File.join(dir, "*.gemspec")].each { |path|
spec = Gem::Specification.load path.untaint
# #load returns nil if the spec is bad, so we just ignore
# it at this stage
specs << spec if spec
}
}
@@all = specs
_resort!
end
@@all
end
def self._resort! # :nodoc:
@@all.sort! { |a, b|
names = a.name <=> b.name
next names if names.nonzero?
b.version <=> a.version
}
end
##
# Adds +spec+ to the known specifications, keeping the collection
# properly sorted.
def self.add_spec spec
# TODO: find all extraneous adds
# puts
# p :add_spec => [spec.full_name, caller.reject { |s| s =~ /minitest/ }]
# TODO: flush the rest of the crap from the tests
# raise "no dupes #{spec.full_name} in #{all_names.inspect}" if
# _all.include? spec
raise "nil spec!" unless spec # TODO: remove once we're happy with tests
return if _all.include? spec
_all << spec
_resort!
end
##
# Adds multiple specs to the known specifications.
def self.add_specs *specs
raise "nil spec!" if specs.any?(&:nil?) # TODO: remove once we're happy
# TODO: this is much more efficient, but we need the extra checks for now
# _all.concat specs
# _resort!
specs.each do |spec| # TODO: slow
add_spec spec
end
end
##
# Returns all specifications. This method is discouraged from use.
# You probably want to use one of the Enumerable methods instead.
def self.all
warn "NOTE: Specification.all called from #{caller.first}" unless
Gem::Deprecate.skip
_all
end
##
# Sets the known specs to +specs+. Not guaranteed to work for you in
# the future. Use at your own risk. Caveat emptor. Doomy doom doom.
# Etc etc.
#
#--
# Makes +specs+ the known specs
# Listen, time is a river
# Winter comes, code breaks
#
# -- wilsonb
def self.all= specs
@@all = specs
end
##
# Return full names of all specs in sorted order.
def self.all_names
self._all.map(&:full_name)
end
##
# Return the list of all array-oriented instance variables.
#--
# Not sure why we need to use so much stupid reflection in here...
def self.array_attributes
@@array_attributes.dup
end
##
# Return the list of all instance variables.
#--
# Not sure why we need to use so much stupid reflection in here...
def self.attribute_names
@@attributes.dup
end
##
# Return the directories that Specification uses to find specs.
def self.dirs
@@dirs ||= Gem.path.collect { |dir|
File.join dir, "specifications"
}
end
##
# Set the directories that Specification uses to find specs. Setting
# this resets the list of known specs.
def self.dirs= dirs
# TODO: find extra calls to dir=
# warn "NOTE: dirs= called from #{caller.first} for #{dirs.inspect}"
self.reset
# ugh
@@dirs = Array(dirs).map { |dir| File.join dir, "specifications" }
end
extend Enumerable
##
# Enumerate every known spec. See ::dirs= and ::add_spec to set the list of
# specs.
def self.each
return enum_for(:each) unless block_given?
self._all.each do |x|
yield x
end
end
##
# Returns every spec that matches +name+ and optional +requirements+.
def self.find_all_by_name name, *requirements
requirements = Gem::Requirement.default if requirements.empty?
# TODO: maybe try: find_all { |s| spec === dep }
Gem::Dependency.new(name, *requirements).matching_specs
end
##
# Find the best specification matching a +name+ and +requirements+. Raises
# if the dependency doesn't resolve to a valid specification.
def self.find_by_name name, *requirements
requirements = Gem::Requirement.default if requirements.empty?
# TODO: maybe try: find { |s| spec === dep }
Gem::Dependency.new(name, *requirements).to_spec
end
##
# Return the best specification that contains the file matching +path+.
def self.find_by_path path
self.find { |spec|
spec.contains_requirable_file? path
}
end
##
# Return currently unresolved specs that contain the file matching +path+.
def self.find_in_unresolved path
# TODO: do we need these?? Kill it
specs = Gem.unresolved_deps.values.map { |dep| dep.to_specs }.flatten
specs.find_all { |spec| spec.contains_requirable_file? path }
end
##
# Search through all unresolved deps and sub-dependencies and return
# specs that contain the file matching +path+.
def self.find_in_unresolved_tree path
specs = Gem.unresolved_deps.values.map { |dep| dep.to_specs }.flatten
specs.reverse_each do |spec|
trails = []
spec.traverse do |from_spec, dep, to_spec, trail|
next unless to_spec.conflicts.empty?
trails << trail if to_spec.contains_requirable_file? path
end
next if trails.empty?
return trails.map(&:reverse).sort.first.reverse
end
[]
end
##
# Special loader for YAML files. When a Specification object is loaded
# from a YAML file, it bypasses the normal Ruby object initialization
# routine (#initialize). This method makes up for that and deals with
# gems of different ages.
#
# +input+ can be anything that YAML.load() accepts: String or IO.
def self.from_yaml(input)
input = normalize_yaml_input input
spec = YAML.load input
if spec && spec.class == FalseClass then
raise Gem::EndOfYAMLException
end
unless Gem::Specification === spec then
raise Gem::Exception, "YAML data doesn't evaluate to gem specification"
end
unless (spec.instance_variables.include? '@specification_version' or
spec.instance_variables.include? :@specification_version) and
spec.instance_variable_get :@specification_version
spec.instance_variable_set :@specification_version,
NONEXISTENT_SPECIFICATION_VERSION
end
spec
end
##
# Return the latest specs, optionally including prerelease specs if
# +prerelease+ is true.
def self.latest_specs prerelease = false
result = Hash.new { |h,k| h[k] = {} }
native = {}
Gem::Specification._all.reverse_each do |spec|
next if spec.version.prerelease? unless prerelease
native[spec.name] = spec.version if spec.platform == Gem::Platform::RUBY
result[spec.name][spec.platform] = spec
end
result.map(&:last).map(&:values).flatten.reject { |spec|
minimum = native[spec.name]
minimum && spec.version < minimum
}
end
##
# Loads Ruby format gemspec from +file+.
def self.load file
return unless file && File.file?(file)
file = file.dup.untaint
code = if defined? Encoding
File.read file, :encoding => "UTF-8"
else
File.read file
end
code.untaint
begin
spec = eval code, binding, file
if Gem::Specification === spec
spec.loaded_from = file.to_s
return spec
end
warn "[#{file}] isn't a Gem::Specification (#{spec.class} instead)."
rescue SignalException, SystemExit
raise
rescue SyntaxError, Exception => e
warn "Invalid gemspec in [#{file}]: #{e}"
end
nil
end
##
# Specification attributes that must be non-nil
def self.non_nil_attributes
@@non_nil_attributes.dup
end
##
# Make sure the YAML specification is properly formatted with dashes
def self.normalize_yaml_input(input)
result = input.respond_to?(:read) ? input.read : input
result = "--- " + result unless result =~ /\A--- /
result.gsub!(/ !!null \n/, " \n")
# date: 2011-04-26 00:00:00.000000000Z
# date: 2011-04-26 00:00:00.000000000 Z
result.gsub!(/^(date: \d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}\.\d+?)Z/, '\1 Z')
result
end
##
# Return a list of all outdated specifications. This method is HEAVY
# as it must go fetch specifications from the server.
def self.outdated
outdateds = []
# TODO: maybe we should switch to rubygems' version service?
fetcher = Gem::SpecFetcher.fetcher
latest_specs.each do |local|
dependency = Gem::Dependency.new local.name, ">= #{local.version}"
remotes = fetcher.find_matching dependency
remotes = remotes.map { |(_, version, _), _| version }
latest = remotes.sort.last
outdateds << local.name if latest and local.version < latest
end
outdateds
end
##
# Removes +spec+ from the known specs.
def self.remove_spec spec
# TODO: beat on the tests
raise "wtf: #{spec.full_name} not in #{all_names.inspect}" unless
_all.include? spec
_all.delete spec
end
##
# Is +name+ a required attribute?
def self.required_attribute?(name)
@@required_attributes.include? name.to_sym
end
##
# Required specification attributes
def self.required_attributes
@@required_attributes.dup
end
##
# Reset the list of known specs, running pre and post reset hooks
# registered in Gem.
def self.reset
@@dirs = nil
# from = caller.first(10).reject { |s| s =~ /minitest/ }
# warn ""
# warn "NOTE: Specification.reset from #{from.inspect}"
Gem.pre_reset_hooks.each { |hook| hook.call }
@@all = nil
Gem.post_reset_hooks.each { |hook| hook.call }
end
##
# Load custom marshal format, re-initializing defaults as needed
def self._load(str)
array = Marshal.load str
spec = Gem::Specification.new
spec.instance_variable_set :@specification_version, array[1]
current_version = CURRENT_SPECIFICATION_VERSION
field_count = if spec.specification_version > current_version then
spec.instance_variable_set :@specification_version,
current_version
MARSHAL_FIELDS[current_version]
else
MARSHAL_FIELDS[spec.specification_version]
end
if array.size < field_count then
raise TypeError, "invalid Gem::Specification format #{array.inspect}"
end
spec.instance_variable_set :@rubygems_version, array[0]
# spec version
spec.instance_variable_set :@name, array[2]
spec.instance_variable_set :@version, array[3]
spec.instance_variable_set :@date, array[4]
spec.instance_variable_set :@summary, array[5]
spec.instance_variable_set :@required_ruby_version, array[6]
spec.instance_variable_set :@required_rubygems_version, array[7]
spec.instance_variable_set :@original_platform, array[8]
spec.instance_variable_set :@dependencies, array[9]
spec.instance_variable_set :@rubyforge_project, array[10]
spec.instance_variable_set :@email, array[11]
spec.instance_variable_set :@authors, array[12]
spec.instance_variable_set :@description, array[13]
spec.instance_variable_set :@homepage, array[14]
spec.instance_variable_set :@has_rdoc, array[15]
spec.instance_variable_set :@new_platform, array[16]
spec.instance_variable_set :@platform, array[16].to_s
spec.instance_variable_set :@license, array[17]
spec.instance_variable_set :@loaded, false
spec.instance_variable_set :@activated, false
spec
end
def <=>(other) # :nodoc:
sort_obj <=> other.sort_obj
end
def == other # :nodoc:
self.class === other &&
name == other.name &&
version == other.version &&
platform == other.platform
end
##
# Dump only crucial instance variables.
#--
# MAINTAIN ORDER!
# (down with the man)
def _dump(limit)
Marshal.dump [
@rubygems_version,
@specification_version,
@name,
@version,
date,
@summary,
@required_ruby_version,
@required_rubygems_version,
@original_platform,
@dependencies,
@rubyforge_project,
@email,
@authors,
@description,
@homepage,
true, # has_rdoc
@new_platform,
@licenses
]
end
##
# Activate this spec, registering it as a loaded spec and adding
# it's lib paths to $LOAD_PATH. Returns true if the spec was
# activated, false if it was previously activated. Freaks out if
# there are conflicts upon activation.
def activate
raise_if_conflicts
return false if Gem.loaded_specs[self.name]
activate_dependencies
add_self_to_load_path
Gem.loaded_specs[self.name] = self
@activated = true
@loaded = true
return true
end
##
# Activate all unambiguously resolved runtime dependencies of this
# spec. Add any ambigous dependencies to the unresolved list to be
# resolved later, as needed.
def activate_dependencies
self.runtime_dependencies.each do |spec_dep|
# TODO: check for conflicts! not just name!
next if Gem.loaded_specs.include? spec_dep.name
specs = spec_dep.to_specs
if specs.size == 1 then
specs.first.activate
else
name = spec_dep.name
Gem.unresolved_deps[name] = Gem.unresolved_deps[name].merge spec_dep
end
end
Gem.unresolved_deps.delete self.name
end
##
# Returns an array with bindir attached to each executable in the
# +executables+ list
def add_bindir(executables)
return nil if executables.nil?
if @bindir then
Array(executables).map { |e| File.join(@bindir, e) }
else
executables
end
rescue
return nil
end
##
# Adds a dependency on gem +dependency+ with type +type+ that requires
# +requirements+. Valid types are currently <tt>:runtime</tt> and
# <tt>:development</tt>.
def add_dependency_with_type(dependency, type, *requirements)
requirements = if requirements.empty? then
Gem::Requirement.default
else
requirements.flatten
end
unless dependency.respond_to?(:name) &&
dependency.respond_to?(:version_requirements)
dependency = Gem::Dependency.new(dependency, requirements, type)
end
dependencies << dependency
end
private :add_dependency_with_type
##
# Adds a development dependency named +gem+ with +requirements+ to this
# Gem. For example:
#
# spec.add_development_dependency 'example', '~> 1.1', '>= 1.1.4'
#
# Development dependencies aren't installed by default and aren't
# activated when a gem is required.
def add_development_dependency(gem, *requirements)
add_dependency_with_type(gem, :development, *requirements)
end
##
# Adds a runtime dependency named +gem+ with +requirements+ to this Gem.
# For example:
#
# spec.add_runtime_dependency 'example', '~> 1.1', '>= 1.1.4'
def add_runtime_dependency(gem, *requirements)
add_dependency_with_type(gem, :runtime, *requirements)
end
alias add_dependency add_runtime_dependency
##
# Adds this spec's require paths to LOAD_PATH, in the proper location.
def add_self_to_load_path
paths = require_paths.map do |path|
File.join full_gem_path, path
end
# gem directories must come after -I and ENV['RUBYLIB']
insert_index = Gem.load_path_insert_index
if insert_index then
# gem directories must come after -I and ENV['RUBYLIB']
$LOAD_PATH.insert(insert_index, *paths)
else
# we are probably testing in core, -I and RUBYLIB don't apply
$LOAD_PATH.unshift(*paths)
end
end
##
# Singular reader for #authors
def author
val = authors and val.first
end
##
# Singular writer for #authors
def author= o
self.authors = [o]
end
##
# The list of author names who wrote this gem.
#
# If you are providing multiple authors and multiple emails they should be
# in the same order such that:
#
# Hash[*spec.authors.zip(spec.emails).flatten]
#
# Gives a hash of author name to email address.
def authors
@authors ||= []
end
##
# Sets the list of authors, ensuring it is an array.
def authors= value
@authors = Array(value).flatten.grep(String)
end
##
# Returns the full path to the base gem directory.
#
# eg: /usr/local/lib/ruby/gems/1.8
def base_dir
return Gem.dir unless loaded_from
@base_dir ||= File.dirname File.dirname loaded_from
end
##
# Returns the full path to installed gem's bin directory.
#
# NOTE: do not confuse this with +bindir+, which is just 'bin', not
# a full path.
def bin_dir
@bin_dir ||= File.join gem_dir, bindir # TODO: this is unfortunate
end
##
# Returns the full path to an executable named +name+ in this gem.
def bin_file name
File.join bin_dir, name
end
##
# Returns the full path to the cache directory containing this
# spec's cached gem.
def cache_dir
@cache_dir ||= File.join base_dir, "cache"
end
##
# Returns the full path to the cached gem for this spec.
def cache_file
@cache_file ||= File.join cache_dir, "#{full_name}.gem"
end
alias :cache_gem :cache_file
##
# Return any possible conflicts against the currently loaded specs.
def conflicts
conflicts = {}
Gem.loaded_specs.values.each do |spec|
bad = self.runtime_dependencies.find_all { |dep|
spec.name == dep.name and not spec.satisfies_requirement? dep
}
conflicts[spec] = bad unless bad.empty?
end
conflicts
end
##
# Return true if this spec can require +file+.
def contains_requirable_file? file
root = full_gem_path
require_paths.each do |lib|
base = "#{root}/#{lib}/#{file}"
Gem.suffixes.each do |suf|
path = "#{base}#{suf}"
return true if File.file? path
end
end
return false
end
##
# The date this gem was created. Lazily defaults to TODAY.
def date
@date ||= TODAY
end
##
# The date this gem was created
#
# Do not set this, it is set automatically when the gem is packaged.
def date= date
# We want to end up with a Time object with one-day resolution.
# This is the cleanest, most-readable, faster-than-using-Date
# way to do it.
@date = case date
when String then
if /\A(\d{4})-(\d{2})-(\d{2})\Z/ =~ date then
Time.utc($1.to_i, $2.to_i, $3.to_i)
else
raise(Gem::InvalidSpecificationException,
"invalid date format in specification: #{date.inspect}")
end
when Time, Date then
Time.utc(date.year, date.month, date.day)
else
TODAY
end
end
##
# The default executable for this gem.
#
# Deprecated: The name of the gem is assumed to be the name of the
# executable now. See Gem.bin_path.
def default_executable
if defined?(@default_executable) and @default_executable
result = @default_executable
elsif @executables and @executables.size == 1
result = Array(@executables).first
else
result = nil
end
result
end
##
# The default value for specification attribute +name+
def default_value name
@@default_value[name]
end
##
# A list of Gem::Dependency objects this gem depends on.
#
# Use #add_dependency or #add_development_dependency to add dependencies to
# a gem.
def dependencies
@dependencies ||= []
end
##
# Return a list of all gems that have a dependency on this gemspec. The
# list is structured with entries that conform to:
#
# [depending_gem, dependency, [list_of_gems_that_satisfy_dependency]]
def dependent_gems
out = []
Gem::Specification.each do |spec|
spec.dependencies.each do |dep|
if self.satisfies_requirement?(dep) then
sats = []
find_all_satisfiers(dep) do |sat|
sats << sat
end
out << [spec, dep, sats]
end
end
end
out
end
##
# Returns all specs that matches this spec's runtime dependencies.
def dependent_specs
runtime_dependencies.map { |dep| dep.to_specs }.flatten
end
##
# A long description of this gem
def description= str
@description = str.to_s
end
##
# List of dependencies that are used for development
def development_dependencies
dependencies.select { |d| d.type == :development }
end
##
# Returns the full path to this spec's documentation directory.
def doc_dir
@doc_dir ||= File.join base_dir, 'doc', full_name
end
def encode_with coder # :nodoc:
mark_version
coder.add 'name', @name
coder.add 'version', @version
platform = case @original_platform
when nil, '' then
'ruby'
when String then
@original_platform
else
@original_platform.to_s
end
coder.add 'platform', platform
attributes = @@attributes.map(&:to_s) - %w[name version platform]
attributes.each do |name|
coder.add name, instance_variable_get("@#{name}")
end
end
def eql? other # :nodoc:
self.class === other && same_attributes?(other)
end
##
# Singular accessor for #executables
def executable
val = executables and val.first
end
##
# Singular accessor for #executables
def executable=o
self.executables = [o]
end
##
# Executables included in the gem.
def executables
@executables ||= []
end
##
# Sets executables to +value+, ensuring it is an array. Don't
# use this, push onto the array instead.
def executables= value
# TODO: warn about setting instead of pushing
@executables = Array(value)
end
##
# Extensions to build when installing the gem. See
# Gem::Installer#build_extensions for valid values.
def extensions
@extensions ||= []
end
##
# Sets extensions to +extensions+, ensuring it is an array. Don't
# use this, push onto the array instead.
def extensions= extensions
# TODO: warn about setting instead of pushing
@extensions = Array extensions
end
##
# Extra files to add to RDoc such as README or doc/examples.txt
def extra_rdoc_files
@extra_rdoc_files ||= []
end
##
# Sets extra_rdoc_files to +files+, ensuring it is an array. Don't
# use this, push onto the array instead.
def extra_rdoc_files= files
# TODO: warn about setting instead of pushing
@extra_rdoc_files = Array files
end
##
# The default (generated) file name of the gem. See also #spec_name.
#
# spec.file_name # => "example-1.0.gem"
def file_name
"#{full_name}.gem"
end
##
# Files included in this gem. You cannot append to this accessor, you must
# assign to it.
#
# Only add files you can require to this list, not directories, etc.
#
# Directories are automatically stripped from this list when building a gem,
# other non-files cause an error.
def files
# DO NOT CHANGE TO ||= ! This is not a normal accessor. (yes, it sucks)
@files = [@files,
@test_files,
add_bindir(@executables),
@extra_rdoc_files,
@extensions,
].flatten.uniq.compact
end
##
# Sets files to +files+, ensuring it is an array.
def files= files
@files = Array files
end
##
# Finds all gems that satisfy +dep+
def find_all_satisfiers dep
Gem::Specification.each do |spec|
yield spec if spec.satisfies_requirement? dep
end
end
private :find_all_satisfiers
##
# Creates a duplicate spec without large blobs that aren't used at runtime.
def for_cache
spec = dup
spec.files = nil
spec.test_files = nil
spec
end
##
# The full path to the gem (install path + full name).
def full_gem_path
# TODO: try to get rid of this... or the awkward
# TODO: also, shouldn't it default to full_name if it hasn't been written?
return @full_gem_path if defined?(@full_gem_path) && @full_gem_path
@full_gem_path = File.expand_path File.join(gems_dir, full_name)
return @full_gem_path if File.directory? @full_gem_path
@full_gem_path = File.expand_path File.join(gems_dir, original_name)
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}"
else
"#{@name}-#{@version}-#{platform}"
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
# TODO: this logic seems terribly broken, but tests fail if just base_dir
@gems_dir ||= File.join(loaded_from && base_dir || Gem.dir, "gems")
end
##
# Deprecated and ignored, defaults to true.
#
# Formerly used to indicate this gem was RDoc-capable.
def has_rdoc
true
end
##
# Deprecated and ignored.
#
# Formerly used to indicate this gem was RDoc-capable.
def has_rdoc= ignored
@has_rdoc = true
end
alias :has_rdoc? :has_rdoc
##
# True if this gem has files in test_files
def has_unit_tests?
not test_files.empty?
end
# :stopdoc:
alias has_test_suite? has_unit_tests?
# :startdoc:
def hash # :nodoc:
@@attributes.inject(0) { |hash_code, (name, _)|
hash_code ^ self.send(name).hash
}
end
def init_with coder # :nodoc:
yaml_initialize coder.tag, coder.map
end
##
# Specification constructor. Assigns the default values to the attributes
# and yields itself for further initialization. Optionally takes +name+ and
# +version+.
def initialize name = nil, version = nil
@loaded = false
@activated = false
@loaded_from = nil
@original_platform = nil
@@nil_attributes.each do |key|
instance_variable_set "@#{key}", nil
end
@@non_nil_attributes.each do |key|
default = default_value(key)
value = case default
when Time, Numeric, Symbol, true, false, nil then default
else default.dup
end
instance_variable_set "@#{key}", value
end
@new_platform = Gem::Platform::RUBY
self.name = name if name
self.version = version if version
yield self if block_given?
end
##
# Duplicates array_attributes from +other_spec+ so state isn't shared.
def initialize_copy other_spec
other_ivars = other_spec.instance_variables
other_ivars = other_ivars.map { |ivar| ivar.intern } if # for 1.9
String === other_ivars.first
self.class.array_attributes.each do |name|
name = :"@#{name}"
next unless other_ivars.include? name
begin
val = other_spec.instance_variable_get(name)
if val then
instance_variable_set name, val.dup
else
warn "WARNING: #{full_name} has an invalid nil value for #{name}"
end
rescue TypeError
e = Gem::FormatException.new \
"#{full_name} has an invalid value for #{name}"
e.file_path = loaded_from
raise e
end
end
end
##
# The directory that this gem was installed into.
# TODO: rename - horrible. this is the base_dir for a gem path
def installation_path
loaded_from && base_dir
end
##
# Returns a string usable in Dir.glob to match all requirable paths
# for this spec.
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}"
end
##
# Files in the Gem under one of the require_paths
def lib_files
@files.select do |file|
require_paths.any? do |path|
file.index(path) == 0
end
end
end
##
# Singular accessor for #licenses
def license
val = licenses and val.first
end
##
# Singular accessor for #licenses
def license=o
self.licenses = [o]
end
##
# The license(s) for the library. Each license must be a short name, no
# more than 64 characters.
def licenses
@licenses ||= []
end
##
# Set licenses to +licenses+, ensuring it is an array.
def licenses= licenses
@licenses = Array licenses
end
##
# Set the location a Specification was loaded from. +obj+ is converted
# to a String.
def loaded_from= path
@loaded_from = path.to_s
end
##
# Sets the rubygems_version to the current RubyGems version.
def mark_version
@rubygems_version = Gem::VERSION
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
##
# Warn about unknown attributes while loading a spec.
def method_missing(sym, *a, &b) # :nodoc:
if @specification_version > CURRENT_SPECIFICATION_VERSION and
sym.to_s =~ /=$/ then
warn "ignoring #{sym} loading #{full_name}" if $DEBUG
else
super
end
end
##
# Normalize the list of files so that:
# * All file lists have redundancies removed.
# * Files referenced in the extra_rdoc_files are included in the package
# file list.
def normalize
if defined?(@extra_rdoc_files) and @extra_rdoc_files then
@extra_rdoc_files.uniq!
@files ||= []
@files.concat(@extra_rdoc_files)
end
@files = @files.uniq if @files
@extensions = @extensions.uniq if @extensions
@test_files = @test_files.uniq if @test_files
@executables = @executables.uniq if @executables
@extra_rdoc_files = @extra_rdoc_files.uniq if @extra_rdoc_files
end
##
# Returns the full name (name-version) of this gemspec using the original
# platform. For use with legacy gems.
def original_name # :nodoc:
if platform == Gem::Platform::RUBY or platform.nil? then
"#{@name}-#{@version}"
else
"#{@name}-#{@version}-#{@original_platform}"
end
end
##
# Cruft. Use +platform+.
def original_platform # :nodoc:
@original_platform ||= platform
end
##
# The platform this gem runs on. See Gem::Platform for details.
def platform
@new_platform ||= Gem::Platform::RUBY
end
##
# The platform this gem runs on. See Gem::Platform for details.
#
# Setting this to any value other than Gem::Platform::RUBY or
# Gem::Platform::CURRENT is probably wrong.
def platform= platform
if @original_platform.nil? or
@original_platform == Gem::Platform::RUBY then
@original_platform = platform
end
case platform
when Gem::Platform::CURRENT then
@new_platform = Gem::Platform.local
@original_platform = @new_platform.to_s
when Gem::Platform then
@new_platform = platform
# legacy constants
when nil, Gem::Platform::RUBY then
@new_platform = Gem::Platform::RUBY
when 'mswin32' then # was Gem::Platform::WIN32
@new_platform = Gem::Platform.new 'x86-mswin32'
when 'i586-linux' then # was Gem::Platform::LINUX_586
@new_platform = Gem::Platform.new 'x86-linux'
when 'powerpc-darwin' then # was Gem::Platform::DARWIN
@new_platform = Gem::Platform.new 'ppc-darwin'
else
@new_platform = Gem::Platform.new platform
end
@platform = @new_platform.to_s
@new_platform
end
def pretty_print(q) # :nodoc:
q.group 2, 'Gem::Specification.new do |s|', 'end' do
q.breakable
# REFACTOR: each_attr - use in to_yaml as well
@@attributes.each do |attr_name|
current_value = self.send attr_name
if current_value != default_value(attr_name) or
self.class.required_attribute? attr_name then
q.text "s.#{attr_name} = "
if attr_name == :date then
current_value = current_value.utc
q.text "Time.utc(#{current_value.year}, #{current_value.month}, #{current_value.day})"
else
q.pp current_value
end
q.breakable
end
end
end
end
##
# Check the spec for possible conflicts and freak out if there are any.
def raise_if_conflicts
other = Gem.loaded_specs[self.name]
if other and self.version != other.version then
# This gem is already loaded. If the currently loaded gem is not in the
# list of candidate gems, then we have a version conflict.
msg = "can't activate #{full_name}, already activated #{other.full_name}"
e = Gem::LoadError.new msg
e.name = self.name
# TODO: e.requirement = dep.requirement
raise e
end
conf = self.conflicts
unless conf.empty? then
y = conf.map { |act,con|
"#{act.full_name} conflicts with #{con.join(", ")}"
}.join ", "
# TODO: improve message by saying who activated `con`
raise Gem::LoadError, "Unable to activate #{self.full_name}, because #{y}"
end
end
##
# An ARGV style array of options to RDoc
def rdoc_options
@rdoc_options ||= []
end
##
# Sets rdoc_options to +value+, ensuring it is an array. Don't
# use this, push onto the array instead.
def rdoc_options= options
# TODO: warn about setting instead of pushing
@rdoc_options = Array options
end
##
# Singular accessor for #require_paths
def require_path
val = require_paths and val.first
end
##
# Singular accessor for #require_paths
def require_path= path
self.require_paths = [path]
end
##
# The version of ruby required by this gem
def required_ruby_version= req
@required_ruby_version = Gem::Requirement.create req
end
##
# The RubyGems version required by this gem
def required_rubygems_version= req
@required_rubygems_version = Gem::Requirement.create req
end
##
# An array or things required by this gem. Not used by anything
# presently.
def requirements
@requirements ||= []
end
##
# Set requirements to +req+, ensuring it is an array. Don't
# use this, push onto the array instead.
def requirements= req
# TODO: warn about setting instead of pushing
@requirements = Array req
end
##
# Returns the full path to this spec's ri directory.
def ri_dir
@ri_dir ||= File.join base_dir, 'ri', full_name
end
##
# Return a string containing a Ruby code representation of the given
# object.
def ruby_code(obj)
case obj
when String then obj.dump
when Array then '[' + obj.map { |x| ruby_code x }.join(", ") + ']'
when Gem::Version then obj.to_s.dump
when Date then obj.strftime('%Y-%m-%d').dump
when Time then obj.strftime('%Y-%m-%d').dump
when Numeric then obj.inspect
when true, false, nil then obj.inspect
when Gem::Platform then "Gem::Platform.new(#{obj.to_a.inspect})"
when Gem::Requirement then "Gem::Requirement.new(#{obj.to_s.inspect})"
else raise Gem::Exception, "ruby_code case not handled: #{obj.class}"
end
end
private :ruby_code
##
# List of dependencies that will automatically be activated at runtime.
def runtime_dependencies
dependencies.select { |d| d.type == :runtime }
end
##
# True if this gem has the same attributes as +other+.
def same_attributes? spec
@@attributes.all? { |name, default| self.send(name) == spec.send(name) }
end
private :same_attributes?
##
# Checks if this specification meets the requirement of +dependency+.
def satisfies_requirement? dependency
return @name == dependency.name &&
dependency.requirement.satisfied_by?(@version)
end
##
# Returns an object you can use to sort specifications in #sort_by.
def sort_obj
# TODO: this is horrible. Deprecate it.
[@name, @version, @new_platform == Gem::Platform::RUBY ? -1 : 1]
end
##
# Returns the full path to the directory containing this spec's
# gemspec file. eg: /usr/local/lib/ruby/gems/1.8/specifications
def spec_dir
@spec_dir ||= File.join base_dir, "specifications"
end
##
# Returns the full path to this spec's gemspec file.
# eg: /usr/local/lib/ruby/gems/1.8/specifications/mygem-1.0.gemspec
def spec_file
@spec_file ||= File.join spec_dir, "#{full_name}.gemspec"
end
##
# The default name of the gemspec. See also #file_name
#
# spec.spec_name # => "example-1.0.gemspec"
def spec_name
"#{full_name}.gemspec"
end
##
# A short summary of this gem's description.
def summary= str
@summary = str.to_s.strip.
gsub(/(\w-)\n[ \t]*(\w)/, '\1\2').gsub(/\n[ \t]*/, " ") # so. weird.
end
##
# Singular accessor for #test_files
def test_file
val = test_files and val.first
end
##
# Singular accessor for #test_files
def test_file= file
self.test_files = [file]
end
##
# Test files included in this gem. You cannot append to this accessor, you
# must assign to it.
def test_files
# Handle the possibility that we have @test_suite_file but not
# @test_files. This will happen when an old gem is loaded via
# YAML.
if defined? @test_suite_file then
@test_files = [@test_suite_file].flatten
@test_suite_file = nil
end
if defined?(@test_files) and @test_files then
@test_files
else
@test_files = []
end
end
##
# Set test_files to +files+, ensuring it is an array.
def test_files= files
@test_files = Array files
end
def test_suite_file # :nodoc:
# TODO: deprecate
test_files.first
end
def test_suite_file= file # :nodoc:
# TODO: deprecate
@test_files = [] unless defined? @test_files
@test_files << file
end
##
# Returns a Ruby code representation of this specification, such that it can
# be eval'ed and reconstruct the same specification later. Attributes that
# still have their default values are omitted.
def to_ruby
mark_version
result = []
result << "# -*- encoding: utf-8 -*-"
result << nil
result << "Gem::Specification.new do |s|"
result << " s.name = #{ruby_code name}"
result << " s.version = #{ruby_code version}"
unless platform.nil? or platform == Gem::Platform::RUBY then
result << " s.platform = #{ruby_code original_platform}"
end
result << ""
result << " s.required_rubygems_version = #{ruby_code required_rubygems_version} if s.respond_to? :required_rubygems_version="
handled = [
:dependencies,
:name,
:platform,
:required_rubygems_version,
:specification_version,
:version,
:has_rdoc,
:default_executable,
]
@@attributes.each do |attr_name|
next if handled.include? attr_name
current_value = self.send(attr_name)
if current_value != default_value(attr_name) or
self.class.required_attribute? attr_name then
result << " s.#{attr_name} = #{ruby_code current_value}"
end
end
result << nil
result << " if s.respond_to? :specification_version then"
result << " s.specification_version = #{specification_version}"
result << nil
result << " if Gem::Version.new(Gem::VERSION) >= Gem::Version.new('1.2.0') then"
dependencies.each do |dep|
req = dep.requirements_list.inspect
dep.instance_variable_set :@type, :runtime if dep.type.nil? # HACK
result << " s.add_#{dep.type}_dependency(%q<#{dep.name}>, #{req})"
end
result << " else"
dependencies.each do |dep|
version_reqs_param = dep.requirements_list.inspect
result << " s.add_dependency(%q<#{dep.name}>, #{version_reqs_param})"
end
result << ' end'
result << " else"
dependencies.each do |dep|
version_reqs_param = dep.requirements_list.inspect
result << " s.add_dependency(%q<#{dep.name}>, #{version_reqs_param})"
end
result << " end"
result << "end"
result << nil
result.join "\n"
end
##
# Returns a Ruby lighter-weight code representation of this specification,
# used for indexing only.
#
# See #to_ruby.
def to_ruby_for_cache
for_cache.to_ruby
end
def to_s # :nodoc:
"#<Gem::Specification name=#{@name} version=#{@version}>"
end
def to_yaml(opts = {}) # :nodoc:
if YAML.const_defined?(:ENGINE) && !YAML::ENGINE.syck? then
super.gsub(/ !!null \n/, " \n")
else
YAML.quick_emit object_id, opts do |out|
out.map taguri, to_yaml_style do |map|
encode_with map
end
end
end
end
##
# Recursively walk dependencies of this spec, executing the +block+ for each
# hop.
def traverse trail = [], &block
trail = trail + [self]
runtime_dependencies.each do |dep|
dep.to_specs.each do |dep_spec|
block[self, dep, dep_spec, trail + [dep_spec]]
dep_spec.traverse(trail, &block) unless
trail.map(&:name).include? dep_spec.name
end
end
end
##
# Checks that the specification contains all required fields, and does a
# very basic sanity check.
#
# Raises InvalidSpecificationException if the spec does not pass the
# checks..
def validate packaging = true
require 'rubygems/user_interaction'
extend Gem::UserInteraction
normalize
nil_attributes = self.class.non_nil_attributes.find_all do |name|
instance_variable_get("@#{name}").nil?
end
unless nil_attributes.empty? then
raise Gem::InvalidSpecificationException,
"#{nil_attributes.join ', '} must not be nil"
end
if packaging and rubygems_version != Gem::VERSION then
raise Gem::InvalidSpecificationException,
"expected RubyGems version #{Gem::VERSION}, was #{rubygems_version}"
end
@@required_attributes.each do |symbol|
unless self.send symbol then
raise Gem::InvalidSpecificationException,
"missing value for attribute #{symbol}"
end
end
unless String === name then
raise Gem::InvalidSpecificationException,
"invalid value for attribute name: \"#{name.inspect}\""
end
if require_paths.empty? then
raise Gem::InvalidSpecificationException,
'specification must have at least one require_path'
end
@files.delete_if { |x| File.directory?(x) }
@test_files.delete_if { |x| File.directory?(x) }
@executables.delete_if { |x| File.directory?(File.join(@bindir, x)) }
@extra_rdoc_files.delete_if { |x| File.directory?(x) }
@extensions.delete_if { |x| File.directory?(x) }
non_files = files.reject { |x| File.file?(x) }
unless not packaging or non_files.empty? then
raise Gem::InvalidSpecificationException,
"[\"#{non_files.join "\", \""}\"] are not files"
end
unless specification_version.is_a?(Fixnum)
raise Gem::InvalidSpecificationException,
'specification_version must be a Fixnum (did you mean version?)'
end
case platform
when Gem::Platform, Gem::Platform::RUBY then # ok
else
raise Gem::InvalidSpecificationException,
"invalid platform #{platform.inspect}, see Gem::Platform"
end
self.class.array_attributes.each do |field|
val = self.send field
klass = case field
when :dependencies
Gem::Dependency
else
String
end
unless Array === val and val.all? { |x| x.kind_of?(klass) } then
raise(Gem::InvalidSpecificationException,
"#{field} must be an Array of #{klass}")
end
end
[:authors].each do |field|
val = self.send field
raise Gem::InvalidSpecificationException, "#{field} may not be empty" if
val.empty?
end
licenses.each { |license|
if license.length > 64
raise Gem::InvalidSpecificationException,
"each license must be 64 characters or less"
end
}
# reject lazy developers:
lazy = '"FIxxxXME" or "TOxxxDO"'.gsub(/xxx/, '')
unless authors.grep(/FI XME|TO DO/x).empty? then
raise Gem::InvalidSpecificationException, "#{lazy} is not an author"
end
unless Array(email).grep(/FI XME|TO DO/x).empty? then
raise Gem::InvalidSpecificationException, "#{lazy} is not an email"
end
if description =~ /FI XME|TO DO/x then
raise Gem::InvalidSpecificationException, "#{lazy} is not a description"
end
if summary =~ /FI XME|TO DO/x then
raise Gem::InvalidSpecificationException, "#{lazy} is not a summary"
end
if homepage and not homepage.empty? and
homepage !~ /\A[a-z][a-z\d+.-]*:/i then
raise Gem::InvalidSpecificationException,
"\"#{homepage}\" is not a URI"
end
# Warnings
%w[author description email homepage summary].each do |attribute|
value = self.send attribute
alert_warning "no #{attribute} specified" if value.nil? or value.empty?
end
if description == summary then
alert_warning 'description and summary are identical'
end
# TODO: raise at some given date
alert_warning "deprecated autorequire specified" if autorequire
executables.each do |executable|
executable_path = File.join(bindir, executable)
shebang = File.read(executable_path, 2) == '#!'
alert_warning "#{executable_path} is missing #! line" unless shebang
end
true
end
##
# Set the version to +version+, potentially also setting
# required_rubygems_version if +version+ indicates it is a
# prerelease.
def version= version
@version = Gem::Version.create(version)
self.required_rubygems_version = '> 1.3.1' if @version.prerelease?
return @version
end
# FIX: have this handle the platform/new_platform/original_platform bullshit
def yaml_initialize(tag, vals) # :nodoc:
vals.each do |ivar, val|
instance_variable_set "@#{ivar}", val
end
@original_platform = @platform # for backwards compatibility
self.platform = Gem::Platform.new @platform
end
extend Gem::Deprecate
deprecate :test_suite_file, :test_file, 2011, 10
deprecate :test_suite_file=, :test_file=, 2011, 10
deprecate :loaded, :activated, 2011, 10
deprecate :loaded?, :activated?, 2011, 10
deprecate :loaded=, :activated=, 2011, 10
deprecate :installation_path, :base_dir, 2011, 10
deprecate :cache_gem, :cache_file, 2011, 10
# TODO:
# deprecate :has_rdoc, :none, 2011, 10
# deprecate :has_rdoc?, :none, 2011, 10
# deprecate :has_rdoc=, :none, 2011, 10
# deprecate :default_executable, :none, 2011, 10
# deprecate :default_executable=, :none, 2011, 10
# deprecate :spec_name, :spec_file, 2011, 10
# deprecate :file_name, :cache_file, 2011, 10
# deprecate :full_gem_path, :cache_file, 2011, 10
end
Gem.clear_paths
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