homebrew-core/Formula/ruby@2.5.rb

class RubyAT25 < Formula
  desc "Powerful, clean, object-oriented scripting language"
  homepage "https://www.ruby-lang.org/"
  url "https://cache.ruby-lang.org/pub/ruby/2.5/ruby-2.5.9.tar.xz"
  sha256 "a87f2fa901408cc77652c1a55ff976695bbe54830ff240e370039eca14b358f0"
  license "Ruby"

  bottle do
    sha256 arm64_monterey: "d88a21825cea4e2e1d1382effb53d640c23472e46e3f8b4c3f63e2571e0b37d1"
    sha256 arm64_big_sur:  "deb2ee5e006f4fc7b3829dfcdb377300f3dc5f339562a6a1c1b4dec48ed21ae6"
    sha256 monterey:       "67b01aac127e5ffeae54ee90f79aa137f69f2dede97ca3e390a472474ee5e11f"
    sha256 big_sur:        "fb6b696623fc988abecbf9fb9f5298219c62c69851123b9d9d69c3f127b0ec3c"
    sha256 catalina:       "8fab1468c593b5907e027c175dc19e3273b08cc8b344822ce593dcab645e857d"
    sha256 mojave:         "ef4974800a4417e6251fb548486150157c2f0ff62275170431381480bac1c3ed"
    sha256 x86_64_linux:   "8b85cf06b1f139109bae913ade71190a65fb71f7848d846428cf95dbd0658e05"
  end

  keg_only :versioned_formula

  disable! date: "2022-07-31", because: :unsupported

  depends_on "pkg-config" => :build
  depends_on "libyaml"
  depends_on "openssl@1.1"
  depends_on "readline"

  uses_from_macos "zlib"

  def api_version
    "2.5.0"
  end

  def rubygems_bindir
    HOMEBREW_PREFIX/"lib/ruby/gems/#{api_version}/bin"
  end

  def install
    # otherwise `gem` command breaks
    ENV.delete("SDKROOT")

    paths = %w[libyaml openssl@1.1 readline].map { |f| Formula[f].opt_prefix }
    args = %W[
      --prefix=#{prefix}
      --enable-shared
      --disable-silent-rules
      --with-sitedir=#{HOMEBREW_PREFIX}/lib/ruby/site_ruby
      --with-vendordir=#{HOMEBREW_PREFIX}/lib/ruby/vendor_ruby
      --with-opt-dir=#{paths.join(":")}
      --without-gmp
    ]
    args << "--disable-dtrace" if OS.mac? && !MacOS::CLT.installed?

    system "./configure", *args

    # Ruby has been configured to look in the HOMEBREW_PREFIX for the
    # sitedir and vendordir directories; however we don't actually want to create
    # them during the install.
    #
    # These directories are empty on install; sitedir is used for non-rubygems
    # third party libraries, and vendordir is used for packager-provided libraries.
    inreplace "tool/rbinstall.rb" do |s|
      s.gsub! 'prepare "extension scripts", sitelibdir', ""
      s.gsub! 'prepare "extension scripts", vendorlibdir', ""
      s.gsub! 'prepare "extension objects", sitearchlibdir', ""
      s.gsub! 'prepare "extension objects", vendorarchlibdir', ""
    end

    system "make"
    system "make", "install"

    # A newer version of ruby-mode.el is shipped with Emacs
    elisp.install Dir["misc/*.el"].reject { |f| f == "misc/ruby-mode.el" }
  end

  def post_install
    # Customize rubygems to look/install in the global gem directory
    # instead of in the Cellar, making gems last across reinstalls
    config_file = lib/"ruby/#{api_version}/rubygems/defaults/operating_system.rb"
    config_file.unlink if config_file.exist?
    config_file.write rubygems_config

    # Create the sitedir and vendordir that were skipped during install
    %w[sitearchdir vendorarchdir].each do |dir|
      mkdir_p `#{bin}/ruby -rrbconfig -e 'print RbConfig::CONFIG["#{dir}"]'`
    end
  end

  def rubygems_config
    <<~EOS
      module Gem
        class << self
          alias :old_default_dir :default_dir
          alias :old_default_path :default_path
          alias :old_default_bindir :default_bindir
          alias :old_ruby :ruby
        end

        def self.default_dir
          path = [
            "#{HOMEBREW_PREFIX}",
            "lib",
            "ruby",
            "gems",
            "#{api_version}"
          ]

          @default_dir ||= File.join(*path)
        end

        def self.private_dir
          path = if defined? RUBY_FRAMEWORK_VERSION then
                   [
                     File.dirname(RbConfig::CONFIG['sitedir']),
                     'Gems',
                     RbConfig::CONFIG['ruby_version']
                   ]
                 elsif RbConfig::CONFIG['rubylibprefix'] then
                   [
                    RbConfig::CONFIG['rubylibprefix'],
                    'gems',
                    RbConfig::CONFIG['ruby_version']
                   ]
                 else
                   [
                     RbConfig::CONFIG['libdir'],
                     ruby_engine,
                     'gems',
                     RbConfig::CONFIG['ruby_version']
                   ]
                 end

          @private_dir ||= File.join(*path)
        end

        def self.default_path
          if Gem.user_home && File.exist?(Gem.user_home)
            [user_dir, default_dir, private_dir]
          else
            [default_dir, private_dir]
          end
        end

        def self.default_bindir
          "#{rubygems_bindir}"
        end

        def self.ruby
          "#{opt_bin}/ruby"
        end
      end
    EOS
  end

  def caveats
    <<~EOS
      By default, binaries installed by gem will be placed into:
        #{rubygems_bindir}

      You may want to add this to your PATH.
    EOS
  end

  test do
    hello_text = shell_output("#{bin}/ruby -e 'puts :hello'")
    assert_equal "hello\n", hello_text
    ENV["GEM_HOME"] = testpath
    system "#{bin}/gem", "install", "json"
  end
end