module Sass::Version

Handles Sass version-reporting. Sass not only reports the standard three version numbers, but its Git revision hash as well, if it was installed from Git.

Public Instance Methods

version() click to toggle source

Returns a hash representing the version of Sass. The ‘:major`, `:minor`, and `:teeny` keys have their respective numbers as Integers. The `:name` key has the name of the version. The `:string` key contains a human-readable string representation of the version. The `:number` key is the major, minor, and teeny keys separated by periods. The `:date` key, which is not guaranteed to be defined, is the `DateTime`

at which this release was cut.

If Sass is checked out from Git, the ‘:rev` key will have the revision hash. For example:

{
  :string => "2.1.0.9616393",
  :rev    => "9616393b8924ef36639c7e82aa88a51a24d16949",
  :number => "2.1.0",
  :date   => DateTime.parse("Apr 30 13:52:01 2009 -0700"),
  :major  => 2, :minor => 1, :teeny => 0
}

If a prerelease version of Sass is being used, the ‘:string` and `:number` fields will reflect the full version (e.g. `“2.2.beta.1”`), and the `:teeny` field will be `-1`. A `:prerelease` key will contain the name of the prerelease (e.g. `“beta”`), and a `:prerelease_number` key will contain the rerelease number. For example:

{
  :string => "3.0.beta.1",
  :number => "3.0.beta.1",
  :date   => DateTime.parse("Mar 31 00:38:04 2010 -0700"),
  :major => 3, :minor => 0, :teeny => -1,
  :prerelease => "beta",
  :prerelease_number => 1
}

@return [{Symbol => String/Integer}] The version hash

# File lib/sass/version.rb, line 45
def version
  return @@version if defined?(@@version)

  numbers = File.read(Sass::Util.scope('VERSION')).strip.split('.').
    map {|n| n =~ /^[0-9]+$/ ? n.to_i : n}
  name = File.read(Sass::Util.scope('VERSION_NAME')).strip
  @@version = {
    :major => numbers[0],
    :minor => numbers[1],
    :teeny => numbers[2],
    :name => name
  }

  if (date = version_date)
    @@version[:date] = date
  end

  if numbers[3].is_a?(String)
    @@version[:teeny] = -1
    @@version[:prerelease] = numbers[3]
    @@version[:prerelease_number] = numbers[4]
  end

  @@version[:number] = numbers.join('.')
  @@version[:string] = @@version[:number].dup

  if (rev = revision_number)
    @@version[:rev] = rev
    unless rev[0] == ?(
      @@version[:string] << "." << rev[0...7]
    end
  end

  @@version
end

Private Instance Methods

revision_number() click to toggle source
# File lib/sass/version.rb, line 83
def revision_number
  if File.exist?(Sass::Util.scope('REVISION'))
    rev = File.read(Sass::Util.scope('REVISION')).strip
    return rev unless rev =~ /^([a-f0-9]+|\(.*\))$/ || rev == '(unknown)'
  end

  return unless File.exist?(Sass::Util.scope('.git/HEAD'))
  rev = File.read(Sass::Util.scope('.git/HEAD')).strip
  return rev unless rev =~ /^ref: (.*)$/

  ref_name = $1
  ref_file = Sass::Util.scope(".git/#{ref_name}")
  info_file = Sass::Util.scope(".git/info/refs")
  return File.read(ref_file).strip if File.exist?(ref_file)
  return unless File.exist?(info_file)
  File.open(info_file) do |f|
    f.each do |l|
      sha, ref = l.strip.split("\t", 2)
      next unless ref == ref_name
      return sha
    end
  end
  nil
end
version_date() click to toggle source
# File lib/sass/version.rb, line 108
def version_date
  return unless File.exist?(Sass::Util.scope('VERSION_DATE'))
  DateTime.parse(File.read(Sass::Util.scope('VERSION_DATE')).strip)
end