Class: Gem2Rpm::Distro

Inherits:
Object
  • Object
show all
Defined in:
lib/gem2rpm/distro.rb

Defined Under Namespace

Classes: OsRelease

Constant Summary collapse

FEDORA = 
:fedora
PLD = 
:pld
OPENSUSE = 
:opensuse
DEFAULT = 
:default
ROLLING_RELEASES = 
['rawhide', 'factory', 'tumbleweed']

Class Method Summary collapse

Class Method Details

.in_range?(version, range) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/gem2rpm/distro.rb', line 79

def self.in_range?(version, range)
  return nil unless range

  if range.length == 1
    return true if range.first.to_s == version.to_s
  else # range: [xx, yy]
    if range[0].to_s <= version.to_s
      return true if ROLLING_RELEASES.include? range[1] or version.to_s <= range[1].to_s
    end
  end

  false
end

.nature ⇒ Object 



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# File 'lib/gem2rpm/distro.rb', line 55

def self.nature
  template_by_os_version(os_release.os, os_release.version) || DEFAULT
end

.os_release ⇒ Object 



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# File 'lib/gem2rpm/distro.rb', line 12

def self.os_release
  @os_release ||= begin
    os_release = OsRelease.new DEFAULT

    # Try os-release first.
    if !release_files.grep(/os-release/).empty?
      content = File.open(release_files.grep(/os-release/).first, Gem2Rpm::OPEN_MODE) do |f|
        f.read
      end

      os_release.os = content[/^ID=(.*)$/, 1].to_sym rescue
      os_release.version = content[/^VERSION_ID=(.*)$/, 1]
    end

    # If os-release failed (it is empty or has not enough information),
    # try some other release files.
    if os_release.os == DEFAULT
      if !release_files.grep(/fedora/).empty?
        os_release.os = FEDORA
        versions = []

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

        versions.uniq!

        os_release.version = versions.first if versions.length == 1
      elsif !release_files.grep(/redhat/).empty?
        # Use Fedora's template for RHEL ATM.
        os_release.os = FEDORA
      elsif !release_files.grep(/SuSE/).empty?
        os_release.os = OPENSUSE
      elsif !release_files.grep(/pld/).empty?
        os_release.os = PLD
      end
    end

    os_release
  end
end

.release_files ⇒ Object 



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# File 'lib/gem2rpm/distro.rb', line 59

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

.release_files=(files) ⇒ Object 



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# File 'lib/gem2rpm/distro.rb', line 64

def self.release_files=(files)
  @release_files = files
end

.template_by_os_version(os, version) ⇒ Object 



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# File 'lib/gem2rpm/distro.rb', line 68

def self.template_by_os_version(os, version)
  Template.list.each do |file|
    next if file =~ /^\./
    # We want only distro RubyGems templates to get the right versions
    next unless file =~ /^#{os}((-([0-9]+\.{0,1}[0-9]+){0,}){0,}(-(#{ROLLING_RELEASES.join('|')})){0,1}).spec.erb/
    return file.gsub('.spec.erb', '') if Regexp.last_match and in_range?(version, Regexp.last_match[1].to_s.split('-').drop(1))
  end

  nil
end