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#!/usr/bin/env ruby
require 'optparse'
# this file run with BASERUBY, which may be older than 1.9, so no
# require_relative
require File.expand_path('../vcs', __FILE__)
Program = $0
@output = nil
def self.output=(output)
if @output and @output != output
raise "you can specify only one of --changed, --revision.h and --doxygen"
end
@output = output
end
@suppress_not_found = false
srcdir = nil
parser = OptionParser.new {|opts|
opts.on("--srcdir=PATH", "use PATH as source directory") do |path|
srcdir = path
end
opts.on("--changed", "changed rev") do
self.output = :changed
end
opts.on("--revision.h", "RUBY_REVISION macro") do
self.output = :revision_h
end
opts.on("--doxygen", "Doxygen format") do
self.output = :doxygen
end
opts.on("-q", "--suppress_not_found") do
@suppress_not_found = true
end
}
parser.parse! rescue abort "#{File.basename(Program)}: #{$!}\n#{parser}"
srcdir ||= File.dirname(File.dirname(Program))
begin
vcs = VCS.detect(srcdir)
rescue VCS::NotFoundError => e
abort "#{File.basename(Program)}: #{e.message}" unless @suppress_not_found
else
begin
last, changed = vcs.get_revisions(ARGV.shift)
rescue => e
abort "#{File.basename(Program)}: #{e.message}" unless @suppress_not_found
exit false
end
end
case @output
when :changed, nil
puts changed
when :revision_h
puts "#define RUBY_REVISION #{changed.to_i}"
when :doxygen
puts "r#{changed}/r#{last}"
else
raise "unknown output format `#{@output}'"
end
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