require 'rake/clean'
require 'fileutils'

vimFolder = "Tools/vim"
bundles_dir = File.join(File.dirname(__FILE__), "#{vimFolder}/bundle/")
pluginsFile = File.join(File.dirname(__FILE__), "#{vimFolder}/plugins.txt")

CLOBBER.include "#{bundles_dir}/*"

task :default => ['clobber', 'vim:reinstall']


namespace :vim do

  directory "#{bundles_dir}"
  desc "reinstalls all vim plugins from #{vimFolder}/plugins.txt"
  task :reinstall do
    puts "loading plugins into #{bundles_dir}..."
    lines = IO.readlines pluginsFile
    puts "Loading #{lines.length} plugins..."
    lines.each { |source|
      loadTask = Rake::Task['vim:loadPlugin']
      loadTask.invoke source.sub "\n", ''
      loadTask.reenable()
    }
    puts "Plugins installed!"
  end

  desc 'Loads a vim plugin from a git repo.'
  task :loadPlugin, [:source] => "#{bundles_dir}" do |t, args|
    raise "Must specify git repo to pull from." unless args.source not(nil)
    dir = gitName args.source
    puts "Installing #{dir}...."
    Dir.chdir bundles_dir do
      sh "git clone #{args.source} #{dir}"
      FileUtils.rm_rf(File.join(dir, ".git"))
    end
    puts "\n\n"
  end

  
  desc "installs a new plugin and adds it to #{vimFolder}/plugins.txt"
  task :install, [:sourceName] do |t, args|
    raise "Must specify git repo to pull from." unless args.sourceName not(nil)
    source = "git://github.com/#{args.sourceName}.git"
    Rake::Task['vim:loadPlugin'].invoke source
    puts "Adding to #{vimFolder}/plugins.txt"
    File.open pluginsFile, 'a' do |file|
      file.puts "#{source}\n"
    end
  end

end

def gitName(gitRepo) 
    return gitRepo.split('/').last.sub(/\.git$/, '')
end