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require 'rake'
require 'rake/tasklib'
require 'rake/clean'
module FFI
module Compiler
class ExportTask < Rake::TaskLib
def initialize(rb_dir, out_dir, options = {})
@rb_dir = rb_dir
@out_dir = out_dir
@gem_spec = options[:gem_spec]
@exports = []
if block_given?
yield self
define_tasks!
end
end
def export(rb_file)
@exports << { :rb_file => File.join(@rb_dir, rb_file), :header => File.join(@out_dir, File.basename(rb_file).sub(/\.rb$/, '.h')) }
end
def export_all
Dir["#@rb_dir/**/*rb"].each do |rb_file|
@exports << { :rb_file => rb_file, :header => File.join(@out_dir, File.basename(rb_file).sub(/\.rb$/, '.h')) }
end
end
private
def define_tasks!
@exports.each do |e|
file e[:header] => [ e[:rb_file] ] do |t|
ruby "-I#{File.join(File.dirname(__FILE__), 'fake_ffi')} #{File.join(File.dirname(__FILE__), 'exporter.rb')} #{t.prerequisites[0]} #{t.name}"
end
CLEAN.include(e[:header])
desc "Export API headers"
task :api_headers => [ e[:header] ]
@gem_spec.files << e[:header] unless @gem_spec.nil?
end
task :gem => [ :api_headers ] unless @gem_spec.nil?
end
end
end
end
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