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Scalate integration with JRuby to access Ruby based filters such as sass
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# ----- Utility Functions -----

def scope(path)
  File.join(File.dirname(__FILE__), path)
end

# ----- Benchmarking -----

desc < :"test:rails_compatibility"
else
  task :default => :test
end

require 'rake/testtask'

Rake::TestTask.new do |t|
  t.libs << 'lib'
  test_files = FileList[scope('test/**/*_test.rb')]
  test_files.exclude(scope('test/rails/*'))
  test_files.exclude(scope('test/plugins/*'))
  test_files.exclude(scope('test/haml/spec/*'))
  t.test_files = test_files
  t.verbose = true
end
Rake::Task[:test].send(:add_comment, < [:revision_file, :submodules, :permissions] do
  load scope('haml.gemspec')
  Gem::Builder.new(HAML_GEMSPEC).build
  pkg = "#{HAML_GEMSPEC.name}-#{HAML_GEMSPEC.version}"
  mkdir_p "pkg"
  verbose(true) {mv "#{pkg}.gem", "pkg/#{pkg}.gem"}

  sh %{rm -f pkg/#{pkg}.tar.gz}
  verbose(false) {HAML_GEMSPEC.files.each {|f| sh %{tar rf pkg/#{pkg}.tar #{f}}}}
  sh %{gzip pkg/#{pkg}.tar}
end

task :permissions do
  sh %{chmod -R a+rx bin}
  sh %{chmod -R a+r .}
  require 'shellwords'
  Dir.glob('test/**/*_test.rb') do |file|
    next if file =~ %r{^test/haml/spec/}
    sh %{chmod a+rx #{file}}
  end
end

task :revision_file do
  require 'lib/haml'

  release = Rake.application.top_level_tasks.include?('release') || File.exist?(scope('EDGE_GEM_VERSION'))
  if Haml.version[:rev] && !release
    File.open(scope('REVISION'), 'w') { |f| f.puts Haml.version[:rev] }
  elsif release
    File.open(scope('REVISION'), 'w') { |f| f.puts "(release)" }
  else
    File.open(scope('REVISION'), 'w') { |f| f.puts "(unknown)" }
  end
end

# We also need to get rid of this file after packaging.
at_exit { File.delete(scope('REVISION')) rescue nil }

desc "Install Haml as a gem. Use SUDO=1 to install with sudo."
task :install => [:package] do
  gem  = RUBY_PLATFORM =~ /java/  ? 'jgem' : 'gem' 
  sh %{#{'sudo ' if ENV["SUDO"]}#{gem} install --no-ri pkg/haml-#{File.read(scope('VERSION')).strip}}
end

desc "Release a new Haml package to Rubyforge."
task :release => [:check_release, :package] do
  name = File.read(scope("VERSION_NAME")).strip
  version = File.read(scope("VERSION")).strip
  sh %{rubyforge add_release haml haml "#{name} (v#{version})" pkg/haml-#{version}.gem}
  sh %{rubyforge add_file    haml haml "#{name} (v#{version})" pkg/haml-#{version}.tar.gz}
  sh %{gem push pkg/haml-#{version}.gem}
end

# Ensures that the version have been updated for a new release.
task :check_release do
  version = File.read(scope("VERSION")).strip
  raise "There have been changes since current version (#{version})" if changed_since?(version)
  raise "VERSION_NAME must not be 'Bleeding Edge'" if File.read(scope("VERSION_NAME")) == "Bleeding Edge"
end

# Reads a password from the command line.
#
# @param name [String] The prompt to use to read the password
def read_password(prompt)
  require 'readline'
  system "stty -echo"
  Readline.readline("#{prompt}: ").strip
ensure
  system "stty echo"
  puts
end

# Returns whether or not the repository, or specific files,
# has/have changed since a given revision.
#
# @param rev [String] The revision to check against
# @param files [Array] The files to check.
#   If this is empty, checks the entire repository
def changed_since?(rev, *files)
  IO.popen("git diff --exit-code #{rev} #{files.join(' ')}") {}
  return !$?.success?
end

# Returns whether or not the given Emacs mode file (haml or sass)
# has changed since the given version.
#
# @param mode [String, Symbol] The name of the mode
# @param version [String] The version number
# @return [String, nil] The version number if the version has changed
def mode_unchanged?(mode, version)
  mode_version = File.read(scope("extra/#{mode}-mode.el")).scan(/^;; Version: (.*)$/).first.first
  return false if mode_version == version
  return mode_version unless changed_since?(mode_version, "extra/#{mode}-mode.el")
  raise "#{mode}-mode.el version is #{version.inspect}, but it has changed as of #{version.inspect}"
  return false
end

task :submodules do
  if File.exist?(File.dirname(__FILE__) + "/.git")
    sh %{git submodule sync}
    sh %{git submodule update --init}
  elsif !File.exist?(File.dirname(__FILE__) + "/vendor/fssm/lib")
    warn < :yard
  task :redoc => :yard
rescue LoadError
  desc "Generate Documentation"
  task :doc => :rdoc
  task :yard => :rdoc
end

task :pages do
  ensure_git_cleanup do
    puts "#{'=' * 50} Running rake pages PROJ=#{ENV["PROJ"].inspect}"
    raise 'No ENV["PROJ"]!' unless proj = ENV["PROJ"]
    sh %{git checkout #{proj}-pages}
    sh %{git reset --hard origin/#{proj}-pages}

    Dir.chdir("/var/www/#{proj}-pages") do
      sh %{git fetch origin}

      sh %{git checkout stable}
      sh %{git reset --hard origin/stable}

      sh %{git checkout #{proj}-pages}
      sh %{git reset --hard origin/#{proj}-pages}
      sh %{rake build --trace}
      sh %{mkdir -p tmp}
      sh %{touch tmp/restart.txt}
    end
  end
end

# ----- Coverage -----

begin
  require 'rcov/rcovtask'

  Rcov::RcovTask.new do |t|
    t.test_files = FileList[scope('test/**/*_test.rb')]
    t.rcov_opts << '-x' << '"^\/"'
    if ENV['NON_NATIVE']
      t.rcov_opts << "--no-rcovrt"
    end
    t.verbose = true
  end
rescue LoadError; end

# ----- Profiling -----

begin
  require 'ruby-prof'

  desc < e
  IO.popen("sendmail [email protected]", "w") do |sm|
    sm << "From: [email protected]\n" <<
      "To: [email protected]\n" <<
      "Subject: Exception when running rake #{Rake.application.top_level_tasks.join(', ')}\n" <<
      e.message << "\n\n" <<
      e.backtrace.join("\n")
  end
ensure
  raise e if e
end

def ensure_git_cleanup
  email_on_error {yield}
ensure
  sh %{git reset --hard HEAD}
  sh %{git clean -xdf}
  sh %{git checkout master}
end

task :handle_update do
  email_on_error do
    unless ENV["REF"] =~ %r{^refs/heads/(master|stable|(?:haml|sass)-pages)$}
      puts "#{'=' * 20} Ignoring rake handle_update REF=#{ENV["REF"].inspect}"
      next
    end
    branch = $1

    puts
    puts
    puts '=' * 150
    puts "Running rake handle_update REF=#{ENV["REF"].inspect}"

    sh %{git fetch origin}
    sh %{git checkout stable}
    sh %{git reset --hard origin/stable}
    sh %{git checkout master}
    sh %{git reset --hard origin/master}

    if branch == "master"
      sh %{rake release_edge --trace}
    elsif branch == "stable"
      sh %{rake pages --trace PROJ=haml}
      sh %{rake pages --trace PROJ=sass}
    elsif branch =~ /^(haml|sass)-pages$/
      sh %{rake pages --trace PROJ=#{$1}}
    end

    puts 'Done running handle_update'
    puts '=' * 150
  end
end