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require 'pathname'
module MRuby
module Gem
class << self
attr_accessor :processing_path
end
class Specification
include Rake::DSL
attr_reader :build
attr_accessor :name, :dir
def self.attr_array(*vars)
attr_reader *vars
vars.each do |v|
class_eval "def #{v}=(val);@#{v}||=[];@#{v}+=[val].flatten;end"
end
end
attr_array :licenses, :authors
alias :license= :licenses=
alias :author= :authors=
attr_array :cflags, :cxxflags, :objcflags, :asmflags
attr_array :mruby_cflags, :mruby_includes, :mruby_ldflags, :mruby_libs
attr_array :rbfiles, :objs
attr_array :test_objs, :test_rbfiles
attr_accessor :test_preload
def initialize(name, &block)
@name = name
@build = MRuby.build
@dir = Gem.processing_path
@cflags, @cxxflags, @objcflags, @asmflags = [], [], [], []
@mruby_cflags, @mruby_ldflags, @mruby_libs = [], [], []
@mruby_includes = ["#{dir}/include"]
@rbfiles = Dir.glob("#{dir}/mrblib/*.rb")
@objs = Dir.glob("#{dir}/src/*.{c,cpp,m,asm,S}").map { |f| f.relative_path_from(@dir).to_s.pathmap("#{build_dir}/%X.o") }
@test_rbfiles = Dir.glob("#{dir}/test/*.rb")
@test_objs = Dir.glob("#{dir}/test/*.{c,cpp,m,asm,S}").map { |f| f.relative_path_from(dir).to_s.pathmap("#{build_dir}/%X.o") }
@test_preload = 'test/assert.rb'
instance_eval(&block)
@objs << "#{build_dir}/gem_init.o"
if !name || !licenses || !authors
fail "#{name || dir} required to set name, license(s) and author(s)"
end
build.gems << self
build.libmruby << @objs
define_default_rules
add_tasks
end
def testlib
"#{build_dir}/libmrb-#{name}-gem-test.a"
end
def funcname
@funcname ||= @name.gsub('-', '_')
end
def build_dir
@build_dir ||= "#{build.build_dir}/mrbgems/#{name}"
FileUtils.mkdir_p @build_dir
@build_dir
end
def add_tasks
Rake::FileTask.define_task "#{build_dir}/gem_init.o" => "#{build_dir}/gem_init.c"
Rake::FileTask.define_task "#{build_dir}/gem_init.c" => [build.mrbcfile] + rbfiles do |t|
generate_gem_init("#{build_dir}/gem_init.c")
end
end
def define_default_rules
obj_matcher = Regexp.new("^#{build_dir}/(.*)\\.o$")
{
'.c' => proc { |t| build.compile_c t.name, t.prerequisites.first, cflags },
'.cpp' => proc { |t| build.compile_cxx t.name, t.prerequisites.first, cxxflags },
'.cxx' => proc { |t| build.compile_cxx t.name, t.prerequisites.first, cxxflags },
'.cc' => proc { |t| build.compile_cxx t.name, t.prerequisites.first, cxxflags },
'.m' => proc { |t| build.compile_objc t.name, t.prerequisites.first, objcflags },
'.S' => proc { |t| build.compile_asm t.name, t.prerequisites.first, asmflags }
}.each do |ext, compile|
rule obj_matcher => [
proc { |file|
file.sub(obj_matcher, "#{dir}/\\1#{ext}")
},
proc { |file|
get_dependencies(file)
}] do |t|
FileUtils.mkdir_p File.dirname(t.name)
compile.call t
end
rule obj_matcher => [
proc { |file|
file.sub(obj_matcher, "#{build_dir}/\\1#{ext}")
},
proc { |file|
get_dependencies(file)
}] do |t|
FileUtils.mkdir_p File.dirname(t.name)
compile.call t
end
end
end
def generate_gem_init(fname)
open(fname, 'w') do |f|
f.puts gem_init_header
build.compile_mruby f, rbfiles, "gem_mrblib_irep_#{funcname}" unless rbfiles.empty?
f.puts "void mrb_#{funcname}_gem_init(mrb_state *mrb);"
f.puts "void GENERATED_TMP_mrb_#{funcname}_gem_init(mrb_state *mrb) {"
f.puts " int ai = mrb_gc_arena_save(mrb);"
f.puts " mrb_#{funcname}_gem_init(mrb);" if objs != ["#{build_dir}/gem_init.o"]
f.puts <<__EOF__ unless rbfiles.empty?
mrb_load_irep(mrb, gem_mrblib_irep_#{funcname});
if (mrb->exc) {
mrb_p(mrb, mrb_obj_value(mrb->exc));
exit(0);
}
__EOF__
f.puts " mrb_gc_arena_restore(mrb, ai);"
f.puts "}"
end
end # generate_gem_init
def gem_init_header
<<__EOF__
/*
* This file is loading the irep
* Ruby GEM code.
*
* IMPORTANT:
* This file was generated!
* All manual changes will get lost.
*/
#include "mruby.h"
#include "mruby/irep.h"
#include "mruby/dump.h"
#include "mruby/string.h"
#include "mruby/proc.h"
#include "mruby/variable.h"
#include "mruby/array.h"
#include "mruby/string.h"
__EOF__
end # gem_init_header
end # Specification
end # Gem
end # MRuby
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