GIT-VERSION-GEN

   1 #!/usr/bin/env ruby
   2 # Copyright (C) all contributors <yahns-public@yhbt.net>
   3 # License: GPL-3.0+ <https://www.gnu.org/licenses/gpl-3.0.txt>
   4 # frozen_string_literal: true
   5 CONSTANT = "Yahns::VERSION"
   6 RVF = "lib/yahns/version.rb"
   7 GVF = "GIT-VERSION-FILE"
   8 DEF_VER = "v1.18.0"
   9 vn = DEF_VER.dup
  10
  11 # First see if there is a version file (included in release tarballs),
  12 # then try git-describe, then default.
  13 if File.exist?(".git")
  14   describe = `git describe --abbrev=4 HEAD 2>/dev/null`.strip
  15   case describe
  16   when /\Av[0-9]*/
  17     vn = describe
  18     system(*%w(git update-index -q --refresh))
  19     unless `git diff-index --name-only HEAD --`.chomp.empty?
  20       vn << "-dirty"
  21     end
  22     vn.tr!('-', '.')
  23   end
  24 end
  25
  26 vn = vn.sub!(/\Av/, "")
  27 new_ruby_version = "#{CONSTANT} = '#{vn}'.freeze # :nodoc:\n"
  28 cur_ruby_version = File.read(RVF) rescue nil
  29 if new_ruby_version != cur_ruby_version
  30   File.open(RVF, "w") { |fp| fp.write(new_ruby_version) }
  31 end
  32 File.chmod(0644, RVF)
  33
  34 # generate the makefile snippet
  35 new_make_version = "VERSION = #{vn}\n"
  36 cur_make_version = File.read(GVF) rescue nil
  37 if new_make_version != cur_make_version
  38   File.open(GVF, "w") { |fp| fp.write(new_make_version) }
  39 end
  40 File.chmod(0644, GVF)
  41
  42 puts vn if $0 == __FILE__