1 files changed, 23 insertions, 0 deletions
diff --git a/mrbgems/mruby-bin-config/mrbgem.rake b/mrbgems/mruby-bin-config/mrbgem.rake
new file mode 100644
index 000000000..3a0a1b897
--- /dev/null
+++ b/mrbgems/mruby-bin-config/mrbgem.rake
@@ -0,0 +1,23 @@
+unless MRuby::Build.current.kind_of?(MRuby::CrossBuild)
+  MRuby::Gem::Specification.new('mruby-bin-config') do |spec|
+    name = 'mruby-config'
+    spec.license = 'MIT'
+    spec.author  = 'mruby developers'
+    spec.summary = "#{name} command"
+
+    mruby_config = name + (ENV['OS'] == 'Windows_NT' ? '.bat' : '')
+    mruby_config_path = "#{build.build_dir}/bin/#{mruby_config}"
+    make_cfg = "#{build.build_dir}/lib/libmruby.flags.mak"
+    tmplt_path = "#{__dir__}/#{mruby_config}"
+    build.bins << mruby_config
+
+    file mruby_config_path => [make_cfg, tmplt_path] do |t|
+      config = Hash[File.readlines(make_cfg).map!(&:chomp).map! {|l|
+        l.gsub('\\"', '"').split(' = ', 2).map! {|s| s.sub(/^(?=.)/, 'echo ')}
+      }]
+      tmplt = File.read(tmplt_path)
+      File.write(t.name, tmplt.gsub(/(#{Regexp.union(*config.keys)})\b/, config))
+      FileUtils.chmod(0755, t.name)
+    end
+  end
+end