Ruby build helper

gistfile1.rb

require 'ostruct'
require 'rake/clean'

# remove CLEAN defaults since this is a "global" Rakefile which means
# the defaults could recursively delete from other peer project dirs
CLEAN.clear

FLAVORS = [
  "TRUNK",
  "TRUNKP",
  "TRUNKOPT",
  "RUBY192",
  "RUBY187"
]

module BuildUtils
  @@src_dir = 'ruby-git'
  @@build_dir = '%s/build' % @@src_dir
  @@install_dir = '%s/pkg' % @@build_dir

  def self.src_dir
    @@src_dir
  end

  def self.build_dir
    @@build_dir
  end

  def self.install_dir
    @@install_dir
  end

  MSYS = OpenStruct.new(
    :base => 'c:/DevKit',
    :shell => 'c:/DevKit/bin/bash.exe'
  )

  # TODO add libyaml include and library paths
  DEPS = OpenStruct.new(
    :lib_options => [
      "LDFLAGS='-Lc:/gnuwin32/zlib/lib -Lc:/gnuwin32/iconv/lib'"
    ],
    :inc_options => [
      "CPPFLAGS='-Ic:/gnuwin32/zlib/include -Ic:/gnuwin32/iconv/include'"
    ]
  )

  TRUNK = OpenStruct.new(
    :repo => 'http://svn.ruby-lang.org/repos/ruby/trunk',
    :configure_options => [
      "--enable-shared",
      "--disable-install-doc"
    ],
    :configure_vars => [
      "optflags='-O0 -pipe'",
      "debugflags='-g3 -ggdb'"
    ]
  )

  TRUNKP = OpenStruct.new(
    :configure_options => [
      "--enable-shared",
      "--disable-install-doc"
    ],
    :configure_vars => [
      "optflags='-O -pipe -pg'",
      "debugflags='-ggdb3'",
      "LIBS='-lgmon'"
    ]
  )

  TRUNKOPT = OpenStruct.new(
    :configure_options => [
      "--enable-shared",
      "--disable-install-doc"
    ],
    :configure_vars => [
      "optflags='-O3 -pipe -march=native -mtune=native'",
      "debugflags=''"
    ]
  )

  RUBY192 = OpenStruct.new(
    :repo => 'http://svn.ruby-lang.org/repos/ruby/branches/ruby_1_9_2',
    :configure_options => [
      "--enable-shared",
      "--disable-install-doc"
    ],
    :configure_vars => [
      "optflags='-O3 -pipe -march=native -mtune=native'",
      "debugflags=''"
    ]
  )

  RUBY187 = OpenStruct.new(
    :repo => 'http://svn.ruby-lang.org/repos/ruby/branches/ruby_1_8_7',
    :configure_options => [
      "--enable-shared",
      "--with-winsock2",
      "--disable-install-doc"
    ],
    :configure_vars => [
      "optflags='-O3 -pipe -march=native -mtune=native -DFD_SETSIZE=256'",
      "debugflags=''"
    ]
  )

  def self.msys_sh(cmd, options={})
    cd_dir = "cd '#{File.expand_path(options[:dir])}' &&" if options[:dir]
    sh "\"#{BuildUtils::MSYS.shell}\" --login -c \"#{cd_dir} #{cmd}\""
  end

  def self.prepare(roob)
    rm_rf '%s/autom4te.cache' % @@src_dir
    rm_f %W( #{@@src_dir}/configure #{@@src_dir}/revision.h )
    msys_sh "autoconf", :dir => "#{@@src_dir}"
  end

end  # module BuildUtils

desc "update repositories"
task :rup do |t|
  repo_dirs = Dir.glob('*-git').sort
  repo_dirs.each do |d|
    Dir.chdir(d) do |wd|
      # TODO cleverness with `git ls-remote` and `git show-ref` comparisons
      `git st`
      if $?.exitstatus != 0
        puts 'need to do something'
      end
    end
  end
end

CLOBBER << BuildUtils.build_dir

namespace :bld do
  directory "#{BuildUtils.build_dir}"
  directory "#{BuildUtils.install_dir}"

  desc "configure Ruby interpreter [CC]"
  task :configure, [:flavor] => [ "#{BuildUtils.build_dir}" ] do |t, args|
    args.with_defaults :flavor => 'TRUNK'
    abort "[ERROR] unknown Ruby flavor '#{args.flavor}'" unless FLAVORS.include? args.flavor.upcase

    puts "configuring Ruby '#{args.flavor}' flavor..."

    roob = BuildUtils.class_eval "#{args.flavor.upcase}"
    BuildUtils.prepare(roob)

    args = "#{roob.configure_options.join(' ')} "
    args << "--prefix='#{File.expand_path(BuildUtils.install_dir)}' "
    args << "#{roob.configure_vars.join(' ')} "
    args << "#{roob.custom_options.join(' ')} " if roob.custom_options
    args << "#{BuildUtils::DEPS.lib_options.join(' ')} #{BuildUtils::DEPS.inc_options.join(' ')} "
    args << "CC='#{ENV['CC']}'" if ENV['CC']
    BuildUtils.msys_sh "../configure #{args}", :dir => "#{BuildUtils.build_dir}" 
  end  # task :configure

  desc "build Ruby targets [CC] [OPTFLAGS] [DEBUGFLAGS]"
  task :make, [:target] do |t, args|
    env = []
    env << "CC='#{ENV['CC']}'" if ENV['CC']
    env << "optflags='#{ENV['optflags']}'" if ENV['optflags']
    env << "debugflags='#{ENV['debugflags']}'" if ENV['debugflags']

    if env.empty?
      BuildUtils.msys_sh "make #{args.target}", :dir => "#{BuildUtils.build_dir}"
    else
      BuildUtils.msys_sh "make #{args.target} #{env.join(' ')}", :dir => "#{BuildUtils.build_dir}"
    end
  end  # task :make

  # TODO implement
  desc "install a previously built Ruby"
  task :install, [:dir] => [ "#{BuildUtils.install_dir}" ] do |t, args|
    abort '[ERROR] must provide an installation directory' unless args.dir
  end

end  # namespace :bld

not so far. i don't always consistently use them when building other things, and i rarely use this gist anymore...caveat emptor.

are you seeing segfaults? if yes, what are you trying to build and what toolchain are you using? i've recently started looking at http://sourceforge.net/projects/mingw-w64/files/Toolchains%20targetting%20Win32/ as i understand their header support is better than the standard mingw headers...also, their automated builds have gcc 4.7.0

not so far. i don't always consistently use them when building other things, and i rarely use this gist anymore...caveat emptor. are you seeing segfaults?

I think I did once upon a time (like mingw gcc 4.2 or something) when I used both -O3 and -march=native. I "think" (hope) that those segfaults have since been fixed, but it's been awhile so I'm not sure.

if yes, what are you trying to build and what toolchain are you using? i've recently started looking at http://sourceforge.net/projects/mingw-w64/files/Toolchains%20targetting%20Win32/ as i understand their header support is better than the standard mingw headers...also, their automated builds have gcc 4.7.0

I was actually building on linux but trying to remember if it bugged out or not. Thanks! -r