1 files changed, 68 insertions, 0 deletions
diff --git a/jni/ruby/tool/file2lastrev.rb b/jni/ruby/tool/file2lastrev.rb
new file mode 100755
index 0000000..616c5f7
--- /dev/null
+++ b/jni/ruby/tool/file2lastrev.rb
@@ -0,0 +1,68 @@
+#!/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 = $0
+
+@output = nil
+def self.output=(output)
+  if @output and @output != output
+    raise "you can specify only one of --changed, --revision.h and --doxygen"
+  end
+  @output = output
+end
+@suppress_not_found = false
+
+srcdir = nil
+parser = OptionParser.new {|opts|
+  opts.on("--srcdir=PATH", "use PATH as source directory") do |path|
+    srcdir = path
+  end
+  opts.on("--changed", "changed rev") do
+    self.output = :changed
+  end
+  opts.on("--revision.h", "RUBY_REVISION macro") do
+    self.output = :revision_h
+  end
+  opts.on("--doxygen", "Doxygen format") do
+    self.output = :doxygen
+  end
+  opts.on("--modified", "modified time") do
+    self.output = :modified
+  end
+  opts.on("-q", "--suppress_not_found") do
+    @suppress_not_found = true
+  end
+}
+parser.parse! rescue abort "#{File.basename(Program)}: #{$!}\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, modified = 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}"
+when :modified
+  puts modified.strftime('%Y-%m-%dT%H:%M:%S%z')
+else
+  raise "unknown output format `#{@output}'"
+end