Class: Bootboot::RubySource

Inherits:
Object
  • Object
show all
Includes:
Bundler::Plugin::API::Source
Defined in:
lib/bootboot/ruby_source.rb

Instance Method Summary collapse

Instance Method Details

#ruby_spec_name ⇒ Object

The spec name for Ruby changed from “ruby0” to “Ruby0” between Bundler 1.17 and 2.0, so we want to use the Ruby spec name from Metadata so Bootboot works across Bundler versions



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# File 'lib/bootboot/ruby_source.rb', line 10

def ruby_spec_name
  @ruby_spec_name ||= begin
    metadata = Bundler::Source::Metadata.new
    ruby_spec = metadata.specs.find { |s| s.name[/[R|r]uby\0/] }
    # Default to Bundler > 2 in case the Bundler internals change
    ruby_spec ? ruby_spec.name : "Ruby\0"
  end
end

#specs ⇒ Object 



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# File 'lib/bootboot/ruby_source.rb', line 19

def specs
  Bundler::Index.build do |idx|
    requested_ruby = Bundler::Definition.build(Bootboot::GEMFILE, nil, false).ruby_version
    system_version = Bundler::RubyVersion.system.gem_version
    requirement = Gem::Requirement.new(requested_ruby.versions) if requested_ruby

    # This will be used both during dependency resolution so that we can pretend
    # the intended Ruby version is present, as well as when updating the lock file.
    ruby_spec_version = if requested_ruby.nil?
      # if the Gemfile doesn't request a specific Ruby version, just use system
      system_version
    elsif !requirement.exact? && requirement.satisfied_by?(system_version)
      # if the Gemfile requests a non-exact Ruby version which is satisfied by
      # the currently running Ruby, use that when updating the lock file
      system_version
    else
      # If we're here, there's either an exact requirement for the Ruby version
      # (in which case we should substitue it instead of current Ruby version),
      # else the currently running Ruby doesn't satisfy the non-exact requirement
      # (in which case an error will be thrown by bundler). Not sure how we can
      # improve the error message, which will be vague due to using #gem_version
      # of the unsatisified requirement.
      requested_ruby.gem_version
    end

    ruby_spec = Gem::Specification.new(ruby_spec_name, ruby_spec_version)
    ruby_spec.source = self
    idx << ruby_spec
  end
end

#to_s ⇒ Object 



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# File 'lib/bootboot/ruby_source.rb', line 50

def to_s
  "Bootboot plugin Ruby source"
end