Refactor generate_version_info script from ruby to shell, so the default ...

kinetic_c_version = `cat config/VERSION`.strip

commit_hash = `git rev-parse HEAD`.strip

protocol_version = nil

proto_source = 'src/lib/kinetic.pb-c.c'

File.readlines(proto_source).each do |l|

    m = l.match /^char com__seagate__kinetic__proto__local__protocol_version__default_value\[\]\s+=\s+\"(.*)\"/

    if m

      protocol_version = m[1].strip

      break

    end

end

raise "Unable to parse protocol version from: #{proto_source}" if protocol_version.nil?

info_header_file = "src/lib/kinetic_version_info.h"

header_contents = []

header_contents << "#ifndef _KINETIC_VERSION_INFO_H\n"

header_contents << "#define _KINETIC_VERSION_INFO_H\n"

header_contents << "#define KINETIC_C_VERSION \"#{kinetic_c_version}\"\n"

header_contents << "#define KINETIC_C_PROTOCOL_VERSION \"#{protocol_version}\"\n"

header_contents << "#define KINETIC_C_REPO_HASH \"#{commit_hash}\"\n"

header_contents << "#endif\n\n"

current_contents = []

current_contents = File.readlines(info_header_file) if File.exist?(info_header_file)

if (current_contents != header_contents)

  File.open(info_header_file, "w+") do |f|

      f.write(header_contents.join(""))

  end

  puts "Generated version info for kinetic-c"

  puts "------------------------------------"

  puts "header file:       #{info_header_file}"

  puts "kinetic-c version: #{kinetic_c_version}"

  puts "protocol version:  #{protocol_version}"

  puts "commit_hash:       #{commit_hash}"

else

  puts "Generated version info for kinetic-c is up to date!"

end