Class: Crate::GemIntegration

Inherits:
Dependency
  • Object
show all
Defined in:
lib/crate/gem_integration.rb

Instance Attribute Summary

Attributes inherited from Dependency

#build_commands, #install_commands, #name, #upstream_source, #version

Instance Method Summary collapse

Methods inherited from Dependency

#build, #build_dir, #cd_and_sh, #define_build, #define_download, #define_install, #define_patch, #define_unpack, #define_verify, #depends_on, #dotfile, #dotfile!, #initialize, #install, #install_dir, #local_source, #logger, #patch_files, #pkg_dir, #pkg_dir=, #recipe_dir, #sh, #upstream_md5=, #upstream_sha1, #upstream_sha1=, #usptream_md5

Constructor Details

This class inherits a constructor from Crate::Dependency

Instance Method Details

#define ⇒ Object

Define all the tasks in the namespace of the name of this task.

The dependency chain is:

:integrate => :patch => :unpack => :verify => :download



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# File 'lib/crate/gem_integration.rb', line 13

def define
  logger.debug "Defining tasks for #{name} #{version}"

  namespace name do
    define_download
    define_verify
    define_unpack
    define_patch
    define_integration

    task :done    => "#{name}:integrate"
    task :default => "#{name}:done"
  end

  desc "Build and Integrate #{name} #{version}"
  task name => "#{name}:default"
end

#define_integration ⇒ Object

Define how the gem integrates into the ruby installation



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# File 'lib/crate/gem_integration.rb', line 34

def define_integration
  desc "Integrate #{name} into ruby's build tree"
  task :integration => [ "#{name}:patch", "ruby:patch" ] do |t|
    logger.info "Integrating #{name} into ruby's tree"
    format = Gem::Format.from_file_by_path( local_source )

    require_paths = format.spec.require_paths.dup
    integration_info = {}

    format.spec.extensions.each do |ext|
      logger.info "integrating #{name} extension #{ext}"
      ext_dirname = File.dirname( ext ) + File::SEPARATOR
      dest_ext_dir = File.join( Crate.ruby.ext_dir, name )
      integration_info[ ext_dirname ] = dest_ext_dir
      require_paths.delete( File.dirname( ext ) )
    end

    require_paths.each do |rp|
      logger.info "integrating #{name} '#{rp}' files "
      integration_info[ rp + File::SEPARATOR ] = Crate.ruby.lib_dir
    end

    install_integration_files( integration_info )

    setup_lines = IO.readlines( Crate.ruby.ext_setup_file )
    if setup_lines.grep(/^#{name}/).empty? then
      File.open( Crate.ruby.ext_setup_file, "a+" ) do |f|
        logger.info "updating ext/Setup file to add #{name}"
        f.puts name
      end
    end
  end
end

#install_integration_files(info) ⇒ Object

each of the key value pairs indicates a matching path (the key) from the gemspec that should be installed into the designated destiation path (the value)



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# File 'lib/crate/gem_integration.rb', line 73

def install_integration_files( info )
  format = Gem::Format.from_file_by_path( local_source )
  info.each_pair do |from, to|
    Dir.chdir( File.join( pkg_dir, from ) ) do
      format.spec.files.each do |f|
        if f.index( from ) == 0 then
          src_file = f.sub( from, '' )
          dest_file = File.join( to, src_file ) 
          dest_dir = File.dirname( dest_file )
          logger.debug "copy #{src_file} to #{dest_file}"
          FileUtils.mkdir_p dest_dir unless File.directory?( dest_dir )
          FileUtils.cp src_file, dest_file
        end
      end
    end
  end
end