Rakefile for building Go projects

Rakefile

require 'rake/clean'
require 'rake/testtask'

# Insert executable name here
TARGET = ''

CLEAN.include('**/*.6')
CLOBBER.include(TARGET)

def required_modules go_file
  m = []
  File.read(go_file).lines.grep(/^import "\.\/.*"/) do |im|
    m << im.match(/^import "\.\/(.*)"/)[1]
  end
  m
end

# List modules included in subdirectories
module_dirs = %w{}

# Build file tasks
compile_tasks = []
six_files = []

FileList['*.go'].each do |src|
	compile_tasks << file(src.ext('.6') => [src] + required_modules(src).map{|m| m.ext('.6')}) do
	  puts `6g #{src}`
  end
  six_files << src.ext('.6')
end

module_dirs.each do |dir|
  files = FileList[File.join(dir, '*.go')].select{|f| !f.match(/_test\.go$/)}
  compile_tasks << file(dir.ext('.6') => files) do
    puts `6g -o #{dir.ext('.6')} #{files.join(' ')}`
  end
  six_files << dir.ext('.6')
end

file TARGET => compile_tasks do
  puts `6l -o #{TARGET} #{TARGET}.6`
end

desc "Build the project."
task :build => TARGET
task :default => :build

desc "Build and run the project."
task :start => :build do
  # Insert default command line args here
  exec("./#{TARGET}")
end

desc "Run all go files through gofmt"
task :gofmt do
  FileList['**/*.go'].each do |file|
    `gofmt -w #{file} #{file}`
  end
end

Rake::TestTask.new do |t|
  t.libs << "test"
  t.test_files = FileList['test/*_test.rb']
  t.verbose = true
end