Class: Gem::Installer::Nice::DistroGuesser

Inherits:
Object
  • Object
show all
Defined in:
lib/rubygems/nice_install/distro_guesser.rb

Class Method Summary collapse

Class Method Details

.distro ⇒ Object 



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# File 'lib/rubygems/nice_install/distro_guesser.rb', line 5

def self.distro
  @distro ||= if !release_files.grep(/fedora/).empty?
    :fedora
  elsif !release_files.grep(/redhat/).empty?
    # Use Fedora for RHEL ATM.
    :fedora
  elsif !release_files.grep(/SuSe/).empty?
    :opensuse
  else
    :base
  end
end

.distro_ext_installer ⇒ Object 



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# File 'lib/rubygems/nice_install/distro_guesser.rb', line 18

def self.distro_ext_installer
  require "rubygems/nice_install/#{distro}_ext_installer"
  klass = Gem::Installer::Nice.const_get("#{distro.capitalize}ExtInstaller")
  klass.new if klass && klass != BaseExtInstaller
end

.release_files ⇒ Object 



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# File 'lib/rubygems/nice_install/distro_guesser.rb', line 35

def self.release_files
  @@release_files ||=
    Dir.glob('/etc/*{_version,-release}*').select {|e| File.file? e}
end

.version ⇒ Object 



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# File 'lib/rubygems/nice_install/distro_guesser.rb', line 24

def self.version
  versions = []

  release_files.each do |file|
    /\d+/ =~ File.open(file).readline
    versions << Regexp.last_match.to_s.to_i if Regexp.last_match
  end

  versions.uniq!.first or 1
end