gitlab-org--gitlab-foss/lib/gitlab/version_info.rb
Sato Hiroyuki 862e0ff6b8 Add Gitlab::VersionInfo class to fix and simplify version check.
It returns "yes" if required version is "1.7.10" and current version is "1.6.10",
because the patch version of current version equals to that of required version.
2013-05-08 17:36:48 +09:00

54 lines
1 KiB
Ruby

module Gitlab
class VersionInfo
include Comparable
attr_reader :major, :minor, :patch
def self.parse(str)
if m = str.match(/(\d+)\.(\d+)\.(\d+)/)
VersionInfo.new(m[1].to_i, m[2].to_i, m[3].to_i)
else
VersionInfo.new
end
end
def initialize(major = 0, minor = 0, patch = 0)
@major = major
@minor = minor
@patch = patch
end
def <=>(other)
return unless other.is_a? VersionInfo
return unless valid? && other.valid?
if other.major < @major
1
elsif @major < other.major
-1
elsif other.minor < @minor
1
elsif @minor < other.minor
-1
elsif other.patch < @patch
1
elsif @patch < other.patch
-1
else
0
end
end
def to_s
if valid?
"%d.%d.%d" % [@major, @minor, @patch]
else
"Unknown"
end
end
def valid?
@major >= 0 && @minor >= 0 && @patch >= 0 && @major + @minor + @patch > 0
end
end
end