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C++のコードをswigでgem化して利用するまでのコマンドまとめ

Last updated at Posted at 2015-05-04

自分用メモ

参考にしたもの
https://github.com/mechamogera/MyTips/wiki/%E6%8B%A1%E5%BC%B5%E3%83%A9%E3%82%A4%E3%83%96%E3%83%A9%E3%83%AA%E3%82%92gem%E5%8C%96%E3%81%97%E3%81%A6%E3%81%BF%E3%82%8B
https://www.gfd-dennou.org/arch/ruby/tutorial/swig/swig-cpp.html

bundle gem example # gemのひな形作成
mkdir example/ext # C++ライブラリ用のディレクトリ

extディレクトリにて
example.cppとその他ヘッダーファイルを入れる。
swig用にexample.iを作成。
extconf.rb作成

swig -ruby -c++ example.i # example_wrap.cxx作成
ruby extconf.rb # Makefile作成
make

exampleディレクトリにて

rake build
gem install pkg/example-0.0.1.gem

非公開のローカルのgemをrailsで利用する場合

Gemfileに以下を追加

gem 'example', :path=>[インストールしたgemへのパス]
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