1_3_post_install.rb

# frozen_string_literal: true
# Code by MSP-Greg

require 'fileutils'

module PostInstall3
  case ENV['MSYSTEM']
  when 'UCRT64'
    D_INSTALL = File.join __dir__, 'ruby-ucrt'
  when 'MINGW32'
    D_INSTALL = File.join __dir__, 'ruby-mingw32'
  else
    D_INSTALL = File.join __dir__, 'ruby-mingw'
  end

  COL_WID = 36
  COL_SPACE = ' ' * COL_WID

  D_MSYS2 = ENV['D_MSYS2']
  D_RI2   = File.join __dir__, 'rubyinstaller2'
  # -REMOVE rbreadline- D_RL    = File.join __dir__, 'ruby_readline'
  D_RUBY  = File.join __dir__, 'ruby'

  # internal version like 2.5.0
  ABI = RbConfig::CONFIG["ruby_version"]

  REWRITE_MARK = /^( *)module Build.*Use for: Build, Runtime/

  # Files to copy from RI2 repo to ruby package / install dir
  RI2_FILES = [
    ["bin", %w|
      resources/files/ridk.cmd
      resources/files/ridk.ps1
      resources/files/setrbvars.cmd | ],

    ["lib/ruby/#{ABI}/rubygems/defaults", %w|
      resources\files\operating_system.rb | ],

    ["lib/ruby/site_ruby/#{ABI}", %w|
      resources\files\irbrc_predefiner.rb | ],
  ]
  BINDIR = RbConfig::CONFIG['bindir']
  TOPDIR = RbConfig::TOPDIR
  # path to site_ruby dir
  SITE_RUBY = File.join TOPDIR, 'lib', 'ruby', 'site_ruby', ABI

  class << self

    def run
      add_ri2
      add_ri2_site_ruby
      generate_version_file
      update_gems
    end

    private

    # Add files defined in {RI2_FILES} from RI2
    def add_ri2
      puts "#{'installing RubyInstaller2:'.ljust(COL_WID)}From #{D_RI2}"
      Dir.chdir(TOPDIR) { |d|
        RI2_FILES.each { |i|
          dest_dir = File.join(TOPDIR, i[0])
          FileUtils.mkdir_p dest_dir unless Dir.exist?(dest_dir)
          i[1].each { |fn|
            fp = "#{D_RI2}/#{fn}"
            if File.exist?(fp)
              puts "#{COL_SPACE}#{fn}"
              #`copy /b /y #{fp.gsub('/', '\\')} #{i[0]}`
              FileUtils.cp fp, dest_dir, preserve: true
            else
              puts "#{COL_SPACE}#{fn} DOES NOT exist!"
            end
          }
        }
        #Dir.chdir("lib/ruby/#{ABI}/rubygems/defaults") { |d|
        #  patch_exe = File.join D_MSYS2, "usr", "bin", "patch.exe"
        #  patch = `#{patch_exe} -p1 -N --no-backup-if-mismatch -i #{__dir__}/patches/__operating_system.rb.patch`
        #  puts "#{COL_SPACE}#{patch}"
        #}
      }
    end

    # Adds files to ruby_installer/runtime dir
    def add_ri2_site_ruby
      src = File.join(D_RI2, 'lib') # .gsub('/', '\\') # + "\\"
      site_ruby = SITE_RUBY # .gsub('/', '\\')
      puts "#{'installing RI2 runtime files:'.ljust(COL_WID)}From #{src}"
      puts "#{COL_SPACE}To   #{site_ruby}"
      # copy everything over to pkg/install dir
      #`xcopy /s /q /y #{src} #{site_ruby}`
      FileUtils.copy_entry src, site_ruby, preserve: true
      # now, loop thru build dir, and move to runtime
      Dir.chdir( File.join(SITE_RUBY, 'ruby_installer') ) { |d|
        Dir.glob('build/*.rb').each { |fn|
          f_str = File.binread(fn)
          if f_str.sub!(REWRITE_MARK, '\1module Runtime # Rewrite')
            puts "#{COL_SPACE}rewrite #{fn[6..-1]}"
            File.open( File.join( 'runtime', fn[6..-1]), 'wb') { |f| f << f_str }
          end
        }
        `rd /s /q build`
        puts "#{COL_SPACE}deleting build dir"
      }
    end

    # Creates ruby_installer/runtime/package_version.rb file
    def generate_version_file
      ri2_vers = ''
      commit = ''
      Dir.chdir(D_RI2) {
        commit   = `git rev-parse HEAD`[0,7]
        if (str = File.binread( File.join('.', 'packages', 'ri', 'Rakefile') )[/^[ \t]*ruby_arch_packages[ \t]*=[^\n]*\n[ \t]*%w\[([\d .-]+)/,1])
          ri2_vers = str.split[-1]
        else
          ri2_vers = `git tag --list "rubyinstaller-[0-9]*"`[/^rubyinstaller-(\S+)\Z/, 1]
        end
      }
      puts "#{'creating package_version.rb:'.ljust(COL_WID)}#{ri2_vers}  commit #{commit}"
      puts "#{COL_SPACE}#{commit}"

      f_str = <<~EOT
      module RubyInstaller
        module Runtime
          PACKAGE_VERSION = "ruby-loco RI2 #{ri2_vers}"
          GIT_COMMIT = "#{commit}"
        end
      end
      EOT
      dest = File.join(SITE_RUBY, 'ruby_installer', 'runtime', 'package_version.rb')
      File.binwrite(dest, f_str)
    end

    # No changes to trunk/master
    def update_gems
      require 'rubygems'
      require 'rubygems/gem_runner'
      suffix = %w[--no-document --env-shebang --silent --norc]
      if RUBY_DESCRIPTION.include? 'master'
        # added as of r65509
        # Gem::GemRunner.new.run(%w[install bundler] + suffix)
      else
        # Gem::GemRunner.new.run %w[uninstall rubygems-update -x]
        # rdoc won't update without UI confirmation of bin directory file replacement ?
        Gem::GemRunner.new.run(%w[update minitest power_assert rake rdoc test-unit] + suffix)
        if RUBY_VERSION.start_with? '2.4'
          Gem::GemRunner.new.run(%w[update did_you_mean] + suffix)
        elsif RUBY_VERSION.start_with? '2.3'
          Gem::GemRunner.new.run(%w[install did_you_mean:1.0.3] + suffix)
        end
        Gem::GemRunner.new.run %w[cleanup]
        if RUBY_VERSION < "2.6"
          Gem::GemRunner.new.run(%w[install bundler] + suffix)
        end
      end
      # clean empty gem folders, needed as of 2019-10-20
      ary = Dir["#{Gem.dir}/gems/*"]
      ary.each { |d| Dir.rmdir(d) if Dir.empty?(d) }
    end
  end
end
PostInstall3.run