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ruby--ruby/lib/rubygems/request_set/gem_dependency_api.rb
hsbt 59991b6ac5 * lib/rubygems: Update to RubyGems HEAD(fe61e4c112). 
this version contains new feature that warn invalid SPDX license
  identifiers. https://github.com/rubygems/rubygems/pull/1249
  and #1032, #1023, #1332, #1328, #1306, #1321, #1324
* test/rubygems: ditto.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51801 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-09-08 22:46:43 +00:00

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##
# A semi-compatible DSL for the Bundler Gemfile and Isolate gem dependencies
# files.
#
# To work with both the Bundler Gemfile and Isolate formats this
# implementation takes some liberties to allow compatibility with each, most
# notably in #source.
#
# A basic gem dependencies file will look like the following:
#
# source 'https://rubygems.org'
#
# gem 'rails', '3.2.14a
# gem 'devise', '~> 2.1', '>= 2.1.3'
# gem 'cancan'
# gem 'airbrake'
# gem 'pg'
#
# RubyGems recommends saving this as gem.deps.rb over Gemfile or Isolate.
#
# To install the gems in this Gemfile use `gem install -g` to install it and
# create a lockfile. The lockfile will ensure that when you make changes to
# your gem dependencies file a minimum amount of change is made to the
# dependencies of your gems.
#
# RubyGems can activate all the gems in your dependencies file at startup
# using the RUBYGEMS_GEMDEPS environment variable or through Gem.use_gemdeps.
# See Gem.use_gemdeps for details and warnings.
#
# See `gem help install` and `gem help gem_dependencies` for further details.
class Gem::RequestSet::GemDependencyAPI
ENGINE_MAP = { # :nodoc:
:jruby => %w[jruby],
:jruby_18 => %w[jruby],
:jruby_19 => %w[jruby],
:maglev => %w[maglev],
:mri => %w[ruby],
:mri_18 => %w[ruby],
:mri_19 => %w[ruby],
:mri_20 => %w[ruby],
:mri_21 => %w[ruby],
:rbx => %w[rbx],
:ruby => %w[ruby rbx maglev],
:ruby_18 => %w[ruby rbx maglev],
:ruby_19 => %w[ruby rbx maglev],
:ruby_20 => %w[ruby rbx maglev],
:ruby_21 => %w[ruby rbx maglev],
}
mswin = Gem::Platform.new 'x86-mswin32'
mswin64 = Gem::Platform.new 'x64-mswin64'
x86_mingw = Gem::Platform.new 'x86-mingw32'
x64_mingw = Gem::Platform.new 'x64-mingw32'
PLATFORM_MAP = { # :nodoc:
:jruby => Gem::Platform::RUBY,
:jruby_18 => Gem::Platform::RUBY,
:jruby_19 => Gem::Platform::RUBY,
:maglev => Gem::Platform::RUBY,
:mingw => x86_mingw,
:mingw_18 => x86_mingw,
:mingw_19 => x86_mingw,
:mingw_20 => x86_mingw,
:mingw_21 => x86_mingw,
:mri => Gem::Platform::RUBY,
:mri_18 => Gem::Platform::RUBY,
:mri_19 => Gem::Platform::RUBY,
:mri_20 => Gem::Platform::RUBY,
:mri_21 => Gem::Platform::RUBY,
:mswin => mswin,
:mswin_18 => mswin,
:mswin_19 => mswin,
:mswin_20 => mswin,
:mswin_21 => mswin,
:mswin64 => mswin64,
:mswin64_19 => mswin64,
:mswin64_20 => mswin64,
:mswin64_21 => mswin64,
:rbx => Gem::Platform::RUBY,
:ruby => Gem::Platform::RUBY,
:ruby_18 => Gem::Platform::RUBY,
:ruby_19 => Gem::Platform::RUBY,
:ruby_20 => Gem::Platform::RUBY,
:ruby_21 => Gem::Platform::RUBY,
:x64_mingw => x64_mingw,
:x64_mingw_20 => x64_mingw,
:x64_mingw_21 => x64_mingw
}
gt_eq_0 = Gem::Requirement.new '>= 0'
tilde_gt_1_8_0 = Gem::Requirement.new '~> 1.8.0'
tilde_gt_1_9_0 = Gem::Requirement.new '~> 1.9.0'
tilde_gt_2_0_0 = Gem::Requirement.new '~> 2.0.0'
tilde_gt_2_1_0 = Gem::Requirement.new '~> 2.1.0'
VERSION_MAP = { # :nodoc:
:jruby => gt_eq_0,
:jruby_18 => tilde_gt_1_8_0,
:jruby_19 => tilde_gt_1_9_0,
:maglev => gt_eq_0,
:mingw => gt_eq_0,
:mingw_18 => tilde_gt_1_8_0,
:mingw_19 => tilde_gt_1_9_0,
:mingw_20 => tilde_gt_2_0_0,
:mingw_21 => tilde_gt_2_1_0,
:mri => gt_eq_0,
:mri_18 => tilde_gt_1_8_0,
:mri_19 => tilde_gt_1_9_0,
:mri_20 => tilde_gt_2_0_0,
:mri_21 => tilde_gt_2_1_0,
:mswin => gt_eq_0,
:mswin_18 => tilde_gt_1_8_0,
:mswin_19 => tilde_gt_1_9_0,
:mswin_20 => tilde_gt_2_0_0,
:mswin_21 => tilde_gt_2_1_0,
:mswin64 => gt_eq_0,
:mswin64_19 => tilde_gt_1_9_0,
:mswin64_20 => tilde_gt_2_0_0,
:mswin64_21 => tilde_gt_2_1_0,
:rbx => gt_eq_0,
:ruby => gt_eq_0,
:ruby_18 => tilde_gt_1_8_0,
:ruby_19 => tilde_gt_1_9_0,
:ruby_20 => tilde_gt_2_0_0,
:ruby_21 => tilde_gt_2_1_0,
:x64_mingw => gt_eq_0,
:x64_mingw_20 => tilde_gt_2_0_0,
:x64_mingw_21 => tilde_gt_2_1_0,
}
WINDOWS = { # :nodoc:
:mingw => :only,
:mingw_18 => :only,
:mingw_19 => :only,
:mingw_20 => :only,
:mingw_21 => :only,
:mri => :never,
:mri_18 => :never,
:mri_19 => :never,
:mri_20 => :never,
:mri_21 => :never,
:mswin => :only,
:mswin_18 => :only,
:mswin_19 => :only,
:mswin_20 => :only,
:mswin_21 => :only,
:mswin64 => :only,
:mswin64_19 => :only,
:mswin64_20 => :only,
:mswin64_21 => :only,
:rbx => :never,
:ruby => :never,
:ruby_18 => :never,
:ruby_19 => :never,
:ruby_20 => :never,
:ruby_21 => :never,
:x64_mingw => :only,
:x64_mingw_20 => :only,
:x64_mingw_21 => :only,
}
##
# The gems required by #gem statements in the gem.deps.rb file
attr_reader :dependencies
##
# A set of gems that are loaded via the +:git+ option to #gem
attr_reader :git_set # :nodoc:
##
# A Hash containing gem names and files to require from those gems.
attr_reader :requires
##
# A set of gems that are loaded via the +:path+ option to #gem
attr_reader :vendor_set # :nodoc:
##
# The groups of gems to exclude from installation
attr_accessor :without_groups # :nodoc:
##
# Creates a new GemDependencyAPI that will add dependencies to the
# Gem::RequestSet +set+ based on the dependency API description in +path+.
def initialize set, path
@set = set
@path = path
@current_groups = nil
@current_platforms = nil
@current_repository = nil
@dependencies = {}
@default_sources = true
@git_set = @set.git_set
@git_sources = {}
@installing = false
@requires = Hash.new { |h, name| h[name] = [] }
@vendor_set = @set.vendor_set
@gem_sources = {}
@without_groups = []
git_source :github do |repo_name|
repo_name = "#{repo_name}/#{repo_name}" unless repo_name.include? "/"
"git://github.com/#{repo_name}.git"
end
git_source :bitbucket do |repo_name|
repo_name = "#{repo_name}/#{repo_name}" unless repo_name.include? "/"
user, = repo_name.split "/", 2
"https://#{user}@bitbucket.org/#{repo_name}.git"
end
end
##
# Adds +dependencies+ to the request set if any of the +groups+ are allowed.
# This is used for gemspec dependencies.
def add_dependencies groups, dependencies # :nodoc:
return unless (groups & @without_groups).empty?
dependencies.each do |dep|
@set.gem dep.name, *dep.requirement
end
end
private :add_dependencies
##
# Finds a gemspec with the given +name+ that lives at +path+.
def find_gemspec name, path # :nodoc:
glob = File.join path, "#{name}.gemspec"
spec_files = Dir[glob]
case spec_files.length
when 1 then
spec_file = spec_files.first
spec = Gem::Specification.load spec_file
return spec if spec
raise ArgumentError, "invalid gemspec #{spec_file}"
when 0 then
raise ArgumentError, "no gemspecs found at #{Dir.pwd}"
else
raise ArgumentError,
"found multiple gemspecs at #{Dir.pwd}, " +
"use the name: option to specify the one you want"
end
end
##
# Changes the behavior of gem dependency file loading to installing mode.
# In installing mode certain restrictions are ignored such as ruby version
# mismatch checks.
def installing= installing # :nodoc:
@installing = installing
end
##
# Loads the gem dependency file and returns self.
def load
instance_eval File.read(@path).untaint, @path, 1
self
end
##
# :category: Gem Dependencies DSL
#
# :call-seq:
# gem(name)
# gem(name, *requirements)
# gem(name, *requirements, options)
#
# Specifies a gem dependency with the given +name+ and +requirements+. You
# may also supply +options+ following the +requirements+
#
# +options+ include:
#
# require: ::
# RubyGems does not provide any autorequire features so requires in a gem
# dependencies file are recorded but ignored.
#
# In bundler the require: option overrides the file to require during
# Bundler.require. By default the name of the dependency is required in
# Bundler. A single file or an Array of files may be given.
#
# To disable requiring any file give +false+:
#
# gem 'rake', require: false
#
# group: ::
# Place the dependencies in the given dependency group. A single group or
# an Array of groups may be given.
#
# See also #group
#
# platform: ::
# Only install the dependency on the given platform. A single platform or
# an Array of platforms may be given.
#
# See #platform for a list of platforms available.
#
# path: ::
# Install this dependency from an unpacked gem in the given directory.
#
# gem 'modified_gem', path: 'vendor/modified_gem'
#
# git: ::
# Install this dependency from a git repository:
#
# gem 'private_gem', git: git@my.company.example:private_gem.git'
#
# gist: ::
# Install this dependency from the gist ID:
#
# gem 'bang', gist: '1232884'
#
# github: ::
# Install this dependency from a github git repository:
#
# gem 'private_gem', github: 'my_company/private_gem'
#
# submodules: ::
# Set to +true+ to include submodules when fetching the git repository for
# git:, gist: and github: dependencies.
#
# ref: ::
# Use the given commit name or SHA for git:, gist: and github:
# dependencies.
#
# branch: ::
# Use the given branch for git:, gist: and github: dependencies.
#
# tag: ::
# Use the given tag for git:, gist: and github: dependencies.
def gem name, *requirements
options = requirements.pop if requirements.last.kind_of?(Hash)
options ||= {}
options[:git] = @current_repository if @current_repository
source_set = false
source_set ||= gem_path name, options
source_set ||= gem_git name, options
source_set ||= gem_git_source name, options
duplicate = @dependencies.include? name
@dependencies[name] =
if requirements.empty? and not source_set then
Gem::Requirement.default
elsif source_set then
Gem::Requirement.source_set
else
Gem::Requirement.create requirements
end
return unless gem_platforms options
groups = gem_group name, options
return unless (groups & @without_groups).empty?
pin_gem_source name, :default unless source_set
gem_requires name, options
if duplicate then
warn <<-WARNING
Gem dependencies file #{@path} requires #{name} more than once.
WARNING
end
@set.gem name, *requirements
end
##
# Handles the git: option from +options+ for gem +name+.
#
# Returns +true+ if the gist or git option was handled.
def gem_git name, options # :nodoc:
if gist = options.delete(:gist) then
options[:git] = "https://gist.github.com/#{gist}.git"
end
return unless repository = options.delete(:git)
pin_gem_source name, :git, repository
reference = nil
reference ||= options.delete :ref
reference ||= options.delete :branch
reference ||= options.delete :tag
reference ||= 'master'
submodules = options.delete :submodules
@git_set.add_git_gem name, repository, reference, submodules
true
end
private :gem_git
##
# Handles a git gem option from +options+ for gem +name+ for a git source
# registered through git_source.
#
# Returns +true+ if the custom source option was handled.
def gem_git_source name, options # :nodoc:
return unless git_source = (@git_sources.keys & options.keys).last
source_callback = @git_sources[git_source]
source_param = options.delete git_source
git_url = source_callback.call source_param
options[:git] = git_url
gem_git name, options
true
end
private :gem_git_source
##
# Handles the :group and :groups +options+ for the gem with the given
# +name+.
def gem_group name, options # :nodoc:
g = options.delete :group
all_groups = g ? Array(g) : []
groups = options.delete :groups
all_groups |= groups if groups
all_groups |= @current_groups if @current_groups
all_groups
end
private :gem_group
##
# Handles the path: option from +options+ for gem +name+.
#
# Returns +true+ if the path option was handled.
def gem_path name, options # :nodoc:
return unless directory = options.delete(:path)
pin_gem_source name, :path, directory
@vendor_set.add_vendor_gem name, directory
true
end
private :gem_path
##
# Handles the platforms: option from +options+. Returns true if the
# platform matches the current platform.
def gem_platforms options # :nodoc:
platform_names = Array(options.delete :platform)
platform_names.concat Array(options.delete :platforms)
platform_names.concat @current_platforms if @current_platforms
return true if platform_names.empty?
platform_names.any? do |platform_name|
raise ArgumentError, "unknown platform #{platform_name.inspect}" unless
platform = PLATFORM_MAP[platform_name]
next false unless Gem::Platform.match platform
if engines = ENGINE_MAP[platform_name] then
next false unless engines.include? Gem.ruby_engine
end
case WINDOWS[platform_name]
when :only then
next false unless Gem.win_platform?
when :never then
next false if Gem.win_platform?
end
VERSION_MAP[platform_name].satisfied_by? Gem.ruby_version
end
end
private :gem_platforms
##
# Records the require: option from +options+ and adds those files, or the
# default file to the require list for +name+.
def gem_requires name, options # :nodoc:
if options.include? :require then
if requires = options.delete(:require) then
@requires[name].concat Array requires
end
else
@requires[name] << name
end
end
private :gem_requires
##
# :category: Gem Dependencies DSL
#
# Block form for specifying gems from a git +repository+.
#
# git 'https://github.com/rails/rails.git' do
# gem 'activesupport'
# gem 'activerecord'
# end
def git repository
@current_repository = repository
yield
ensure
@current_repository = nil
end
##
# Defines a custom git source that uses +name+ to expand git repositories
# for use in gems built from git repositories. You must provide a block
# that accepts a git repository name for expansion.
def git_source name, &callback
@git_sources[name] = callback
end
##
# Returns the basename of the file the dependencies were loaded from
def gem_deps_file # :nodoc:
File.basename @path
end
##
# :category: Gem Dependencies DSL
#
# Loads dependencies from a gemspec file.
#
# +options+ include:
#
# name: ::
# The name portion of the gemspec file. Defaults to searching for any
# gemspec file in the current directory.
#
# gemspec name: 'my_gem'
#
# path: ::
# The path the gemspec lives in. Defaults to the current directory:
#
# gemspec 'my_gem', path: 'gemspecs', name: 'my_gem'
#
# development_group: ::
# The group to add development dependencies to. By default this is
# :development. Only one group may be specified.
def gemspec options = {}
name = options.delete(:name) || '{,*}'
path = options.delete(:path) || '.'
development_group = options.delete(:development_group) || :development
spec = find_gemspec name, path
groups = gem_group spec.name, {}
self_dep = Gem::Dependency.new spec.name, spec.version
add_dependencies groups, [self_dep]
add_dependencies groups, spec.runtime_dependencies
@dependencies[spec.name] = Gem::Requirement.source_set
spec.dependencies.each do |dep|
@dependencies[dep.name] = dep.requirement
end
groups << development_group
add_dependencies groups, spec.development_dependencies
gem_requires spec.name, options
end
##
# :category: Gem Dependencies DSL
#
# Block form for placing a dependency in the given +groups+.
#
# group :development do
# gem 'debugger'
# end
#
# group :development, :test do
# gem 'minitest'
# end
#
# Groups can be excluded at install time using `gem install -g --without
# development`. See `gem help install` and `gem help gem_dependencies` for
# further details.
def group *groups
@current_groups = groups
yield
ensure
@current_groups = nil
end
##
# Pins the gem +name+ to the given +source+. Adding a gem with the same
# name from a different +source+ will raise an exception.
def pin_gem_source name, type = :default, source = nil
source_description =
case type
when :default then '(default)'
when :path then "path: #{source}"
when :git then "git: #{source}"
else '(unknown)'
end
raise ArgumentError,
"duplicate source #{source_description} for gem #{name}" if
@gem_sources.fetch(name, source) != source
@gem_sources[name] = source
end
private :pin_gem_source
##
# :category: Gem Dependencies DSL
#
# Block form for restricting gems to a set of platforms.
#
# The gem dependencies platform is different from Gem::Platform. A platform
# gem.deps.rb platform matches on the ruby engine, the ruby version and
# whether or not windows is allowed.
#
# :ruby, :ruby_XY ::
# Matches non-windows, non-jruby implementations where X and Y can be used
# to match releases in the 1.8, 1.9, 2.0 or 2.1 series.
#
# :mri, :mri_XY ::
# Matches non-windows C Ruby (Matz Ruby) or only the 1.8, 1.9, 2.0 or
# 2.1 series.
#
# :mingw, :mingw_XY ::
# Matches 32 bit C Ruby on MinGW or only the 1.8, 1.9, 2.0 or 2.1 series.
#
# :x64_mingw, :x64_mingw_XY ::
# Matches 64 bit C Ruby on MinGW or only the 1.8, 1.9, 2.0 or 2.1 series.
#
# :mswin, :mswin_XY ::
# Matches 32 bit C Ruby on Microsoft Windows or only the 1.8, 1.9, 2.0 or
# 2.1 series.
#
# :mswin64, :mswin64_XY ::
# Matches 64 bit C Ruby on Microsoft Windows or only the 1.8, 1.9, 2.0 or
# 2.1 series.
#
# :jruby, :jruby_XY ::
# Matches JRuby or JRuby in 1.8 or 1.9 mode.
#
# :maglev ::
# Matches Maglev
#
# :rbx ::
# Matches non-windows Rubinius
#
# NOTE: There is inconsistency in what environment a platform matches. You
# may need to read the source to know the exact details.
def platform *platforms
@current_platforms = platforms
yield
ensure
@current_platforms = nil
end
##
# :category: Gem Dependencies DSL
#
# Block form for restricting gems to a particular set of platforms. See
# #platform.
alias :platforms :platform
##
# :category: Gem Dependencies DSL
#
# Restricts this gem dependencies file to the given ruby +version+.
#
# You may also provide +engine:+ and +engine_version:+ options to restrict
# this gem dependencies file to a particular ruby engine and its engine
# version. This matching is performed by using the RUBY_ENGINE and
# engine_specific VERSION constants. (For JRuby, JRUBY_VERSION).
def ruby version, options = {}
engine = options[:engine]
engine_version = options[:engine_version]
raise ArgumentError,
'you must specify engine_version along with the ruby engine' if
engine and not engine_version
return true if @installing
unless RUBY_VERSION == version then
message = "Your Ruby version is #{RUBY_VERSION}, " +
"but your #{gem_deps_file} requires #{version}"
raise Gem::RubyVersionMismatch, message
end
if engine and engine != Gem.ruby_engine then
message = "Your ruby engine is #{Gem.ruby_engine}, " +
"but your #{gem_deps_file} requires #{engine}"
raise Gem::RubyVersionMismatch, message
end
if engine_version then
my_engine_version = Object.const_get "#{Gem.ruby_engine.upcase}_VERSION"
if engine_version != my_engine_version then
message =
"Your ruby engine version is #{Gem.ruby_engine} #{my_engine_version}, " +
"but your #{gem_deps_file} requires #{engine} #{engine_version}"
raise Gem::RubyVersionMismatch, message
end
end
return true
end
##
# :category: Gem Dependencies DSL
#
# Sets +url+ as a source for gems for this dependency API. RubyGems uses
# the default configured sources if no source was given. If a source is set
# only that source is used.
#
# This method differs in behavior from Bundler:
#
# * The +:gemcutter+, # +:rubygems+ and +:rubyforge+ sources are not
# supported as they are deprecated in bundler.
# * The +prepend:+ option is not supported. If you wish to order sources
# then list them in your preferred order.
def source url
Gem.sources.clear if @default_sources
@default_sources = false
Gem.sources << url
end
# TODO: remove this typo name at RubyGems 3.0
Gem::RequestSet::GemDepedencyAPI = self # :nodoc:
end
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