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#--
# Cross-compile ruby, using Rake
#
# This source code is released under the MIT License.
# See LICENSE file for details
#++
#
# This code is inspired and based on notes from the following sites:
#
# http://tenderlovemaking.com/2008/11/21/cross-compiling-ruby-gems-for-win32/
# http://github.com/jbarnette/johnson/tree/master/cross-compile.txt
# http://eigenclass.org/hiki/cross+compiling+rcovrt
#
# This recipe only cleanup the dependency chain and automate it.
# Also opens the door to usage different ruby versions
# for cross-compilation.
#
require 'rake'
require 'rake/clean'
begin
require 'psych'
rescue LoadError
end
require 'yaml'
require "rbconfig"
# load compiler helpers
# add lib directory to the search path
libdir = File.expand_path(File.join(File.dirname(__FILE__), '..', '..', 'lib'))
$LOAD_PATH.unshift(libdir) unless $LOAD_PATH.include?(libdir)
if RUBY_PLATFORM =~ /mingw|mswin/ then
puts "This command is meant to be executed under Linux or OSX, not Windows (is for cross-compilation)"
exit(1)
end
require 'rake/extensioncompiler'
MAKE = ENV['MAKE'] || %w[gmake make].find { |c| system("#{c} -v > /dev/null 2>&1") }
USER_HOME = File.realpath(File.expand_path("~/.rake-compiler"))
RUBY_SOURCE = ENV['SOURCE']
RUBY_BUILD = RbConfig::CONFIG["host"]
# Unset any possible variable that might affect compilation
["RUBYOPT"].each do |var|
ENV.delete(var)
end
RUBY_CC_VERSIONS = ENV.fetch("VERSION", "1.8.7-p371")
RUBY_CC_VERSIONS.split(":").each do |ruby_cc_version|
ruby_cc_version = "ruby-" + ruby_cc_version
# grab the major "1.8" or "1.9" part of the version number
major = ruby_cc_version.match(/.*-(\d.\d).\d/)[1]
# define a location where sources will be stored
source_dir = "#{USER_HOME}/sources/#{ruby_cc_version}"
directory source_dir
# clean intermediate files and folders
CLEAN.include(source_dir)
# remove the final products and sources
CLOBBER.include("#{USER_HOME}/sources")
CLOBBER.include("#{USER_HOME}/builds")
CLOBBER.include("#{USER_HOME}/config.yml")
# Extract the sources
source_file = RUBY_SOURCE ? RUBY_SOURCE.split('/').last : "#{ruby_cc_version}.tar.gz"
file source_dir => ["#{USER_HOME}/sources/#{source_file}"] do |t|
t.prerequisites.each { |f| sh "tar xf #{File.basename(f)}", chdir: File.dirname(t.name) }
end
# ruby source file should be stored there
file "#{USER_HOME}/sources/#{ruby_cc_version}.tar.gz" => ["#{USER_HOME}/sources"] do |t|
# download the source file using wget or curl
if RUBY_SOURCE
url = RUBY_SOURCE
else
url = "http://cache.ruby-lang.org/pub/ruby/#{major}/#{File.basename(t.name)}"
end
sh "wget #{url} || curl -O #{url}", chdir: File.dirname(t.name)
end
# Create tasks for each host out of the ":" separated hosts list in the HOST variable.
# These tasks are processed in parallel as dependencies to the "install" task.
mingw_hosts = ENV['HOST'] || Rake::ExtensionCompiler.mingw_host
mingw_hosts.split(":").each do |mingw_host|
# Use Rake::ExtensionCompiler helpers to find the proper host
mingw_target = mingw_host.gsub('msvc', '')
# define a location where built files for each host will be stored
build_dir = "#{USER_HOME}/builds/#{mingw_host}/#{ruby_cc_version}"
directory build_dir
install_dir = "#{USER_HOME}/ruby/#{mingw_host}/#{ruby_cc_version}"
# clean intermediate files and folders
CLEAN.include(build_dir)
CLOBBER.include(install_dir)
task :mingw32 do
unless mingw_host then
warn "You need to install mingw32 cross compile functionality to be able to continue."
warn "Please refer to your distribution/package manager documentation about installation."
fail
end
end
# generate the makefile in a clean build location
file "#{build_dir}/Makefile" => [build_dir, source_dir] do |t|
options = [
"--host=#{mingw_host}",
"--target=#{mingw_target}",
"--build=#{RUBY_BUILD}",
'--enable-shared',
'--disable-install-doc',
'--with-ext=',
]
# Force Winsock2 for Ruby 1.8, 1.9 defaults to it
options << "--with-winsock2" if major == "1.8"
options << "--prefix=#{install_dir}"
sh File.expand_path("#{USER_HOME}/sources/#{ruby_cc_version}/configure"), *options, chdir: File.dirname(t.name)
end
# make
file "#{build_dir}/ruby.exe" => ["#{build_dir}/Makefile"] do |t|
sh MAKE, chdir: File.dirname(t.prerequisites.first)
end
# make install
file "#{USER_HOME}/ruby/#{mingw_host}/#{ruby_cc_version}/bin/ruby.exe" => ["#{build_dir}/ruby.exe"] do |t|
sh "#{MAKE} install", chdir: File.dirname(t.prerequisites.first)
end
multitask :install => ["#{USER_HOME}/ruby/#{mingw_host}/#{ruby_cc_version}/bin/ruby.exe"]
end
end
desc "Update rake-compiler list of installed Ruby versions"
task 'update-config' do
config_file = "#{USER_HOME}/config.yml"
if File.exist?(config_file) then
puts "Updating #{config_file}"
config = YAML.load_file(config_file)
else
puts "Generating #{config_file}"
config = {}
end
files = Dir.glob("#{USER_HOME}/ruby/*/*/**/rbconfig.rb").sort
files.each do |rbconfig|
version, platform = rbconfig.match(/.*-(\d.\d.\d).*\/([-\w]+)\/rbconfig/)[1,2]
platforms = [platform]
# fake alternate (binary compatible) i386-mswin32-60 platform
platform == "i386-mingw32" and
platforms.push "i386-mswin32-60"
platforms.each do |plat|
config["rbconfig-#{plat}-#{version}"] = rbconfig
# also store RubyGems-compatible version
gem_platform = Gem::Platform.new(plat)
config["rbconfig-#{gem_platform}-#{version}"] = rbconfig
end
puts "Found Ruby version #{version} for platform #{platform} (#{rbconfig})"
end
when_writing("Saving changes into #{config_file}") {
File.open(config_file, 'w') do |f|
f.puts config.to_yaml
end
}
end
task :default do
# Force the display of the available tasks when no option is given
Rake.application.options.show_task_pattern = //
Rake.application.display_tasks_and_comments
end
desc "Build rubies suitable for cross-platform development."
task 'cross-ruby' => [:mingw32, :install, 'update-config']
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