# Rakefile for rake        -*- ruby -*-

# Copyright 2003, 2004 by Jim Weirich (jim@weirichhouse.org)
# All rights reserved.

# This file is may be distributed under an MIT style license.  See
# MIT-LICENSE for details.

begin
  require 'rubygems'
  require 'rake/gempackagetask'
rescue Exception
  nil
end
require 'rake/clean'
require 'rake/testtask'
require 'rake/rdoctask'

CLEAN.include('**/*.o')
CLOBBER.include('doc/example/main')

# Determine the current version of the software

if `ruby -Ilib ./bin/rake --version` =~ /\S+$/
  PKG_VERSION = $&
else
  PKG_VERSION = "0.0.0"
end

SRC_RB = FileList['lib/**/*.rb']

# The default task is run if rake is given no explicit arguments.

desc "Default Task"
task :default => :test

# Test Tasks ---------------------------------------------------------

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

Rake::TestTask.new(:testfun) do |t|
  t.pattern = 'test/fun*.rb'
  t.verbose = true
end

Rake::TestTask.new(:testcontrib) do |t|
  t.pattern = 'test/contrib/test*.rb'
  t.verbose = true
end

directory 'testdata'
task :test => ['testdata']

desc "Run all test targets"
task :testall => [:test, :testcontrib, :testfun]

# Abbreviations

task :ta => [:testall]
task :tf => [:testfun]
task :tc => [:testcontrib]

# CVS Tasks ----------------------------------------------------------

desc "Tag all the CVS files with the latest release number (TAG=x)"
task :tag do
  rel = "REL_" + PKG_VERSION.gsub(/\./, '_')
  rel << ENV['TAG'] if ENV['TAG']
  puts rel
  sh %{cvs commit -m 'pre-tag commit'}
  sh %{cvs tag #{rel}}
end

# Install rake using the standard install.rb script.

desc "Install the application"
task :install do
  ruby "install.rb"
end

# Create a task to build the RDOC documentation tree.

rd = Rake::RDocTask.new("rdoc") { |rdoc|
  rdoc.rdoc_dir = 'html'
#  rdoc.template = 'kilmer'
#  rdoc.template = 'css2'
  rdoc.title    = "Rake -- Ruby Make"
  rdoc.options << '--line-numbers' << '--inline-source' << '--main' << 'README'
  rdoc.rdoc_files.include('README', 'MIT-LICENSE', 'TODO', 'CHANGES')
  rdoc.rdoc_files.include('lib/**/*.rb', 'doc/**/*.rdoc')
  rdoc.rdoc_files.exclude(/\bcontrib\b/)
}

# ====================================================================
# Create a task that will package the Rake software into distributable
# tar, zip and gem files.

PKG_FILES = FileList[
  'install.rb',
  '[A-Z]*',
  'bin/**/*', 
  'lib/**/*.rb', 
  'test/**/*.rb',
  'doc/**/*'
]
PKG_FILES.exclude('doc/example/*.o')
PKG_FILES.exclude(%r{doc/example/main$})

if ! defined?(Gem)
  puts "Package Target requires RubyGEMs"
else
  spec = Gem::Specification.new do |s|
    
    #### Basic information.

    s.name = 'rake'
    s.version = PKG_VERSION
    s.summary = "Ruby based make-like utility."
    s.description = <<-EOF
      Rake is a Make-like program implemented in Ruby. Tasks
      and dependencies are specified in standard Ruby syntax. 
    EOF

    #### Dependencies and requirements.

    #s.add_dependency('log4r', '> 1.0.4')
    #s.requirements << ""

    #### Which files are to be included in this gem?  Everything!  (Except CVS directories.)

    s.files = PKG_FILES.to_a

    #### C code extensions.

    #s.extensions << "ext/rmagic/extconf.rb"

    #### Load-time details: library and application (you will need one or both).

    s.require_path = 'lib'                         # Use these for libraries.
    s.autorequire = 'rake'

    s.bindir = "bin"                               # Use these for applications.
    s.executables = ["rake"]
    s.default_executable = "rake"

    #### Documentation and testing.

    s.has_rdoc = true
    s.extra_rdoc_files = rd.rdoc_files.reject { |fn| fn =~ /\.rb$/ }.to_a
    s.rdoc_options <<
      '--title' <<  'Rake -- Ruby Make' <<
      '--main' << 'README' <<
      '--line-numbers'

    #### Author and project details.

    s.author = "Jim Weirich"
    s.email = "jim@weirichhouse.org"
    s.homepage = "http://onestepback.org"
    s.rubyforge_project = "rake"
  end

  Rake::GemPackageTask.new(spec) do |pkg|
	  #pkg.need_zip = true
    pkg.need_tar = true
  end
end

# Misc tasks =========================================================

def count_lines(filename)
  lines = 0
  codelines = 0
  open(filename) { |f|
    f.each do |line|
      lines += 1
      next if line =~ /^\s*$/
      next if line =~ /^\s*#/
      codelines += 1
    end
  }
  [lines, codelines]
end

def show_line(msg, lines, loc)
  printf "%6s %6s   %s\n", lines.to_s, loc.to_s, msg
end

desc "Count lines in the main rake file"
task :lines do
  total_lines = 0
  total_code = 0
  show_line("File Name", "LINES", "LOC")
  SRC_RB.each do |fn|
    lines, codelines = count_lines(fn)
    show_line(fn, lines, codelines)
    total_lines += lines
    total_code  += codelines
  end
  show_line("TOTAL", total_lines, total_code)
end

ARCHIVEDIR = '/mnt/usb'

task :archive => [:package] do
  cp FileList["pkg/*.tgz", "pkg/*.zip", "pkg/*.gem"], ARCHIVEDIR
end

# Define an optional publish target in an external file.  If the
# publish.rf file is not found, the publish targets won't be defined.

load "publish.rf" if File.exist? "publish.rf"