Use Rake instead of Make

Rakefile

@@ -0,0 +1,2 @@
+require_relative 'lib/rake/lua_mruby_tasks'
+Rake::LuaMRubyTasks.new

lib/lua-mruby.c

@@ -7,17 +7,17 @@
 #include "mruby/compile.h"
 
 static int lua_mruby_run(lua_State *L) {
-  // mrb_state *mrb = mrb_open();
-  // const char *mrb_code = lua_tostring(L, 1);
-  // struct mrb_parser_state* parser = mrb_parse_string(mrb, mrb_code, NULL);
-  // int mrb_generated_code = mrb_generate_code(mrb, parser->tree);
-  // 
-  // mrb_run( mrb, mrb_proc_new(mrb, mrb->irep[mrb_generated_code]), mrb_nil_value() );
-  // 
-  // int lua_return = mrb_generated_code > 0 ? 0 : 1;
-  // lua_pushnumber(L, lua_return);
-  // 
-  // mrb_close(mrb);
+  mrb_state *mrb = mrb_open();
+  const char *mrb_code = lua_tostring(L, 1);
+  struct mrb_parser_state *p = mrb_parse_string(mrb, mrb_code, NULL);
+  int mrb_generated_code = mrb_generate_code(mrb, p-> tree);
+
+  mrb_run( mrb, mrb_proc_new(mrb, mrb->irep[mrb_generated_code]), mrb_nil_value() );
+
+  int lua_return = mrb_generated_code > 0 ? 0 : 1;
+  lua_pushnumber(L, lua_return);
+
+  mrb_close(mrb);
 
   return 1;
 }
@@ -28,7 +28,6 @@ static const struct luaL_reg mrubylib[] = {
 };
 
 int luaopen_mruby(lua_State *L) {
-  // luaL_openlib(L, "mruby", mrubylib, 0);
   luaL_register(L, "mruby", mrubylib);
   return 1;
 }

lib/rake/lua_mruby_tasks.rb

@@ -0,0 +1,61 @@
+require 'rake/tasklib'
+require 'pathname'
+Pathname.send(:alias_method, :/, :join)
+
+class Rake::LuaMRubyTasks < Rake::TaskLib
+
+  def initialize
+
+    desc "Compile lua-mruby"
+    # task(:compile, &:compile)
+    task(:compile) { compile }
+
+    desc "Clean up the current build"
+    # task(:clean, &:clean)
+    task(:clean) { clean }
+
+    task :default => [:clean, :compile]
+
+  end
+
+  define_method(:root)          { (Pathname.new(__FILE__) / '..' / '..' / '..').expand_path }
+  define_method(:compiler)      { '/usr/bin/gcc' }
+  define_method(:mruby)         { Pathname.new('/Users/ryguy/Code/C/Source/mruby') }
+  define_method(:lua)           { Pathname.new('/usr/local/Cellar/lua/5.1.4') }
+  define_method(:mruby_include) { mruby / 'include' }
+  define_method(:mruby_src)     { mruby / 'src' }
+  define_method(:lua_include)   { lua / 'include' }
+  define_method(:package)        { root / 'pkg' }
+  define_method(:output)        { "-o #{package / 'mruby.so'}" }
+
+  def includes
+    [mruby_include, mruby_src, lua_include].collect { |path| "-I#{path}" }.join(' ')
+  end
+
+  def libraries
+    [
+      root / 'lib' / 'lua-mruby.c',
+      '-lm',
+      mruby / 'mrblib' / 'mrblib.o',
+      mruby / 'lib' / 'libmruby.a'
+    ].join(' ')
+  end
+
+  def flags
+    '-llua -O3 -g -Wall -Werror-implicit-function-declaration -shared -O'
+  end
+
+  def command
+    [compiler, includes, flags, output, libraries].join(' ')
+  end
+
+  def compile
+    package.mkdir
+    system(command)
+  end
+
+  def clean
+    package.rmtree rescue nil
+  end
+
+end