April 2022
Beginner to intermediate
464 pages
6h 44m
Japanese
Content preview from 実用 Go言語 ―システム開発の現場で知っておきたいアドバイス
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6.4 Goプロジェクトのモジュール内のパッケージ構成
Goのプロジェクト構成に関する基礎知識と用語を整理しました。1プロジェクト=1モジュール=1パッケージであれば複雑ではありませんが、プログラムが複雑になってくるとプロジェクトを複数のパッケージに分離して開発を進めることになります。
Goのパッケージ構成について検索すると「Standard Go Project Layout」というサイトが見つかります。ですが、ここで紹介されている内容は必要以上に複雑であり、Goの生みの親の1人のRuss Coxも「これは標準ではない」とコメントしています。必要以上に複雑な構造を採用すると利用する手間が増えますし、メンテナンスの工数も増えます。とはいえ、開発者同士の共通知識やイディオムにある程度従えば、比較的簡単に利用できるようになるでしょう。
Standard Go Project Layout
https://github.com/golang-standards/project-layout/
Russ Coxのコメントは以下にあります。
https://github.com/golang-standards/project-layout/issues/117
ここでは、プロジェクト内部のパッケージをどのように構成していくべきかを考える材料を提供します。
6.4.1 最低限のパッケージ構成
Goのパッケージングにおける最低限のルールは次の2つです。
同一フォルダ内のファイルは同一パッケージとなる ...
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