Module: Libv8::Checkout

Included in:
Builder
Defined in:
ext/libv8/checkout.rb

Constant Summary collapse

GYP_SVN = 
'http://gyp.googlecode.com/svn'
V8_Source = 
File.expand_path '../../../vendor/v8', __FILE__
GYP_Source = 
File.expand_path '../../../vendor/gyp', __FILE__

Class Method Summary collapse

Class Method Details

.check_git_svn! ⇒ Object 



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# File 'ext/libv8/checkout.rb', line 43

def check_git_svn!
  # msysgit provides git svn
  return if RUBY_PLATFORM =~ /mingw/

  unless system 'git svn --version 2>&1 > /dev/null'
    fail "git-svn not installed!\nPlease install git-svn."
  end
end

.checkout! ⇒ Object 



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# File 'ext/libv8/checkout.rb', line 11

def checkout!
  # When compiling from a source gem, it's not a git repository anymore and
  # we assume the right code is already checked out.
  return unless git?(V8_Source)

  Dir.chdir(V8_Source) do
    `git fetch`
    `git checkout #{Libv8::VERSION.gsub(/\.\d+(\.rc\d+)?$/,'')} -f`
    `rm -f .applied_patches`
  end

  return unless git?(GYP_Source)

  check_git_svn!

  Dir.chdir(GYP_Source) do
    mkf = File.readlines(File.join(V8_Source, 'Makefile'))
    idx = mkf.index {|l| l =~ /#{GYP_SVN}/} + 1
    rev = /--revision (\d+)/.match(mkf[idx])[1]
    `git fetch`
    # --git-dir is needed for older versions of git and git-svn
    `git --git-dir=../../.git/modules/vendor/gyp/ svn init #{GYP_SVN} -Ttrunk`
    `git config --replace-all svn-remote.svn.fetch trunk:refs/remotes/origin/master`
    svn_rev = `git --git-dir=../../.git/modules/vendor/gyp/ svn find-rev r#{rev} | tail -n 1`.chomp
    `git checkout #{svn_rev} -f`
  end
end

.git?(dir) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'ext/libv8/checkout.rb', line 39

def git?(dir)
  File.exist?(File.join(dir, '.git'))
end