From 0c2ac199065d36645c867aad8e385bc298e564a1 Mon Sep 17 00:00:00 2001
From: Takashi Kokubun <takashi-kokubun@cookpad.com>
Date: Thu, 26 Nov 2015 01:07:06 +0900
Subject: [PATCH] Prepare extension in C

---
 .gitignore                      | 4 ++++
 Rakefile                        | 9 +++++++--
 ext/hamlit/extconf.rb           | 3 +++
 ext/hamlit/hamlit.c             | 6 ++++++
 hamlit.gemspec                  | 2 ++
 lib/hamlit/attribute_builder.rb | 1 +
 6 files changed, 23 insertions(+), 2 deletions(-)
 create mode 100644 ext/hamlit/extconf.rb
 create mode 100644 ext/hamlit/hamlit.c

diff --git a/.gitignore b/.gitignore
index 2b16aae4..16c3c8ae 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,3 +10,7 @@
 .sass-cache
 /hamlit1
 .ruby-version
+*.bundle
+*.so
+*.o
+*.a
diff --git a/Rakefile b/Rakefile
index c8dac157..138c3fe3 100644
--- a/Rakefile
+++ b/Rakefile
@@ -1,5 +1,6 @@
 require 'bundler/gem_tasks'
 require 'rake/testtask'
+require 'rake/extensiontask'
 
 Dir['benchmark/*.rake'].each { |b| import(b) }
 
@@ -70,5 +71,9 @@ namespace :test do
   end
 end
 
-task default: %w[hamlit:test]
-task test: %w[test:all]
+Rake::ExtensionTask.new(:hamlit) do |ext|
+  ext.lib_dir = 'lib/hamlit'
+end
+
+task default: %w[compile hamlit:test]
+task test: %w[compile test:all]
diff --git a/ext/hamlit/extconf.rb b/ext/hamlit/extconf.rb
new file mode 100644
index 00000000..f0c98814
--- /dev/null
+++ b/ext/hamlit/extconf.rb
@@ -0,0 +1,3 @@
+require 'mkmf'
+
+create_makefile('hamlit/hamlit')
diff --git a/ext/hamlit/hamlit.c b/ext/hamlit/hamlit.c
new file mode 100644
index 00000000..2ccc229c
--- /dev/null
+++ b/ext/hamlit/hamlit.c
@@ -0,0 +1,6 @@
+#include <ruby.h>
+
+void
+Init_hamlit(void)
+{
+}
diff --git a/hamlit.gemspec b/hamlit.gemspec
index 4f43c61c..1a24c0cc 100644
--- a/hamlit.gemspec
+++ b/hamlit.gemspec
@@ -17,6 +17,7 @@ Gem::Specification.new do |spec|
   spec.files         = `git ls-files -z`.split("\x0").reject { |f| f.match(%r{^(test|spec|features|hamlit1|sample)/}) }
   spec.bindir        = 'exe'
   spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
+  spec.extensions    = ['ext/hamlit/extconf.rb']
   spec.require_paths = ['lib']
 
   spec.add_dependency 'escape_utils'
@@ -31,6 +32,7 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency 'minitest-reporters', '~> 1.1'
   spec.add_development_dependency 'rails', '>= 4.0.0'
   spec.add_development_dependency 'rake', '~> 10.0'
+  spec.add_development_dependency 'rake-compiler'
   spec.add_development_dependency 'redcarpet'
   spec.add_development_dependency 'sass'
   spec.add_development_dependency 'slim'
diff --git a/lib/hamlit/attribute_builder.rb b/lib/hamlit/attribute_builder.rb
index 6b2a9bb5..b60f7e07 100644
--- a/lib/hamlit/attribute_builder.rb
+++ b/lib/hamlit/attribute_builder.rb
@@ -1,3 +1,4 @@
+require 'hamlit/hamlit'
 require 'hamlit/object_ref'
 require 'temple/utils'