SciRuby/distribution

#!/usr/bin/env ruby

require 'optparse'
require 'fileutils'
require 'erb'
gem_base = File.expand_path(File.dirname(__FILE__) + '/..')
require gem_base + '/lib/distribution'

new = false
parameters = ''
OptionParser.new do |opts|
  opts.banner = 'Usage: distribution [--new] [--params parameters] distribution'
  opts.on('-n', '--new', 'Create a new template for distribution') do
    new = true
  end
  opts.on('-PMANDATORY', '--params MANDATORY', String, 'Parameters for distribution') do |n_param|
    parameters = ", #{n_param}"
  end

  opts.on('-h', '--help', 'Show this message') do
    puts opts
    exit
  end

  begin
    ARGV << '-h' if ARGV.empty?
    opts.parse!(ARGV)
  rescue OptionParser::ParseError => e
    STDERR.puts e.message, "\n", opts
    exit(-1)
  end
end

ARGV.each do |distribution|
  if new
    basename = distribution.downcase
    fail 'You should be inside distribution lib directory' unless File.exist? '../distribution.rb'
    fail 'Distribution already created' if File.exist? basename + '.rb'
    main = ERB.new(File.read(gem_base + '/data/template/distribution.erb'))
    ruby = ERB.new(File.read(gem_base + '/data/template/distribution/ruby.erb'))
    gsl = ERB.new(File.read(gem_base + '/data/template/distribution/gsl.erb'))
    spec = ERB.new(File.read(gem_base + '/data/template/spec.erb'))

    FileUtils.mkdir(basename) unless File.exist? basename
    File.open(basename + '.rb', 'w') { |fp| fp.write(main.result(binding)) }
    File.open(basename + '/ruby.rb', 'w') { |fp| fp.write(ruby.result(binding)) }
    File.open(basename + '/gsl.rb', 'w') { |fp| fp.write(gsl.result(binding)) }
    File.open("../../spec/#{basename}_spec.rb", 'w') { |fp| fp.write(spec.result(binding)) }

  end
end