Gem::InstallerTestCase | Ruby API (v2.3)

setup

#

          # File tmp/rubies/ruby-2.3.8/lib/rubygems/installer_test_case.rb, line 86
def setup
  super

  @spec = quick_gem 'a' do |spec|
    util_make_exec spec
  end

  @user_spec = quick_gem 'b' do |spec|
    util_make_exec spec
  end

  util_build_gem @spec
  util_build_gem @user_spec

  @gem = @spec.cache_file
  @user_gem = @user_spec.cache_file

  @installer      = util_installer @spec, @gemhome
  @user_installer = util_installer @user_spec, Gem.user_dir, :user

  Gem::Installer.path_warning = false
end

@gem: the path to a built gem from @spec
@user_spec: the path to a built gem from @user_spec
@installer: a Gem::Installer for the @spec that installs into @gemhome
@user_installer: a Gem::Installer for the @user_spec that installs into Gem.user_dir

util_installer(spec, gem_home, user=false)

#

2.3 View on GitHub

          # File tmp/rubies/ruby-2.3.8/lib/rubygems/installer_test_case.rb, line 187
def util_installer(spec, gem_home, user=false)
  Gem::Installer.at(spec.cache_file,
                     :install_dir => gem_home,
                     :user_install => user)
end

Creates an installer for spec that will install into gem_home. If user is true a user-install will be performed.

util_inst_bindir

#

2.3 View on GitHub

          # File tmp/rubies/ruby-2.3.8/lib/rubygems/installer_test_case.rb, line 122
def util_inst_bindir
  File.join @gemhome, "bin"
end

The path where installed executables live

util_make_exec(spec = @spec, shebang = "

#

2.3 View on GitHub

          # File tmp/rubies/ruby-2.3.8/lib/rubygems/installer_test_case.rb, line 132
def util_make_exec(spec = @spec, shebang = "#!/usr/bin/ruby")
  spec.executables = %w[executable]
  spec.files << 'bin/executable'

  exec_path = spec.bin_file "executable"
  write_file exec_path do |io|
    io.puts shebang
  end

  bin_path = File.join @tempdir, "bin", "executable"
  write_file bin_path do |io|
    io.puts shebang
  end
end

Adds an executable named “executable” to spec with the given shebang.

The executable is also written to the bin dir in @tmpdir and the installed gem directory for spec.

util_setup_gem(ui = @ui)

#

2.3 View on GitHub

          # File tmp/rubies/ruby-2.3.8/lib/rubygems/installer_test_case.rb, line 155
  def util_setup_gem(ui = @ui) # HACK fix use_ui to make this automatic
    @spec.files << File.join('lib', 'code.rb')
    @spec.extensions << File.join('ext', 'a', 'mkrf_conf.rb')

    Dir.chdir @tempdir do
      FileUtils.mkdir_p 'bin'
      FileUtils.mkdir_p 'lib'
      FileUtils.mkdir_p File.join('ext', 'a')
      File.open File.join('bin', 'executable'), 'w' do |f|
        f.puts "raise 'ran executable'"
      end
      File.open File.join('lib', 'code.rb'), 'w' do |f| f.puts '1' end
      File.open File.join('ext', 'a', 'mkrf_conf.rb'), 'w' do |f|
        f << <<-EOF
          File.open 'Rakefile', 'w' do |rf| rf.puts "task :default" end
        EOF
      end

      use_ui ui do
        FileUtils.rm_f @gem

        @gem = Gem::Package.build @spec
      end
    end

    @installer = Gem::Installer.at @gem
  end

Builds the @spec gem and returns an installer for it. The built gem includes:

bin/executable
lib/code.rb
ext/a/mkrf_conf.rb