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##
# A semi-compatible DSL for the Bundler Gemfile and Isolate formats.
class Gem::RequestSet::GemDependencyAPI
##
# The dependency groups created by #group in the dependency API file.
attr_reader :dependency_groups
##
# A set of gems that are loaded via the +:path+ option to #gem
attr_reader :vendor_set # :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
@dependency_groups = Hash.new { |h, group| h[group] = [] }
@vendor_set = @set.vendor_set
end
##
# Loads the gem dependency file
def load
instance_eval File.read(@path).untaint, @path, 1
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+
def gem name, *requirements
options = requirements.pop if requirements.last.kind_of?(Hash)
options ||= {}
if directory = options.delete(:path) then
@vendor_set.add_vendor_gem name, directory
end
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
unless all_groups.empty? then
all_groups.each do |group|
gem_arguments = [name, *requirements]
gem_arguments << options unless options.empty?
@dependency_groups[group] << gem_arguments
end
return
end
@set.gem name, *requirements
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
# Block form for placing a dependency in the given +groups+.
def group *groups
@current_groups = groups
yield
ensure
@current_groups = nil
end
##
# :category: Gem Dependencies DSL
def platform what
if what == :ruby
yield
end
end
##
# :category: Gem Dependencies DSL
alias :platforms :platform
##
# :category: Gem Dependencies DSL
# Restricts this gem dependencies file to the given ruby +version+. The
# +:engine+ options from Bundler are currently ignored.
def ruby version, options = {}
return true if version == RUBY_VERSION
message = "Your Ruby version is #{RUBY_VERSION}, " +
"but your #{gem_deps_file} specified #{version}"
raise Gem::RubyVersionMismatch, message
end
##
# :category: Gem Dependencies DSL
def source url
end
# TODO: remove this typo name at RubyGems 3.0
Gem::RequestSet::DepedencyAPI = self # :nodoc:
end
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