# Rakefile for pyrosoma.  -*-ruby-*-
require 'rake/rdoctask'
require 'rake/testtask'


desc "Run all the tests"
task :default => [:test]

desc "Do predistribution stuff"
task :predist => [:chmod, :changelog, :rdoc]


desc "Run all the tests"
task :test => :chmod do
  system "specrb -Ilib:test -w #{ENV['TEST'] || '-a'} #{ENV['TESTOPTS']}"
end

desc "Make an archive as .tar.gz"
task :dist => :test do
  system "export DARCS_REPO=#{File.expand_path "."}; " +
         "darcs dist -d pyrosoma#{get_darcs_tree_version}"
end

desc "Make binaries executable"
task :chmod do
  Dir["bin/*"].each { |binary| File.chmod(0775, binary) }
end

desc "Generate a ChangeLog"
task :changelog do
  system "darcs changes --repo=#{ENV["DARCS_REPO"] || "."} >ChangeLog"
end

desc "Generate RDoc documentation"
Rake::RDocTask.new(:rdoc) do |rdoc|
  rdoc.options << '--line-numbers' << '--inline-source'
  rdoc.rdoc_dir = "rdoc"
  rdoc.rdoc_files.include 'README'
  rdoc.rdoc_files.include 'SPECS'
  rdoc.rdoc_files.include('lib/**/*.rb')
end
task :rdoc => "SPECS"

desc "Generate RDox"
task "SPECS" do
  system "specrb -Ilib:test -a --rdox >SPECS"
end

begin
  require 'rcov/rcovtask'
  
  Rcov::RcovTask.new do |t|
    t.test_files = FileList['test/spec_*.rb'] + ['--', '-rs']   # evil
    t.verbose = true     # uncomment to see the executed command
    t.rcov_opts = ["--text-report", "-x", "xoxo-rb"]
  end
rescue LoadError
end


# Helper to retrieve the "revision number" of the darcs tree.
def get_darcs_tree_version
  return ""  unless File.directory? "_darcs"

  changes = `darcs changes`
  count = 0
  tag = "0.0"
  
  changes.each("\n\n") { |change|
    head, title, desc = change.split("\n", 3)
    
    if title =~ /^  \*/
      # Normal change.
      count += 1
    elsif title =~ /tagged (.*)/
      # Tag.  We look for these.
      tag = $1
      break
    else
      warn "Unparsable change: #{change}"
    end
  }

  "-" + tag + "." + count.to_s
end