February 2014
Intermediate to advanced
248 pages
4h 23m
Japanese
Content preview from 実践 Vagrant
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115
115
7.3 プラグインの開発の基本
7.3
プラグインの開発の基本
Vagrant
のプラグインは、誰でも書くことができます。プラグインは
Ruby
で書か
れ、
RubyGems
を使ってパッケージ化されます。
Ruby
と
RubyGems
には、どちら
も慣れていなければなりません。このどちらにも親しんでいるなら、
Vagrant
のプラ
グインを書く準備は万端です！
7.3.1
プラグインの定義
すべてのプラグインには、定義が必要です。この定義には、プラグインの名前や、
プラグインに含まれるコンポーネントといった、そのプラグインに関する重要な詳細
情報が含まれます。
この定義は、
Vagrant
がプラグインをロードするときに最初に見つけるものであ
り、これさえあればロードできます。これは、将来
Vagrant
の内部が大幅に変更さ
れた場合でも動作を保証できるようにするための、重要な部分です。以下に示すの
は、小さなプラグインの定義です。
class MyPlugin < Vagrant.plugin("2")
name "My Plugin"
end
プラグインの定義は、
Vagrant.plugin(
“
2
”
)
を継承する
Ruby
のクラスです。こ
こでの
2
は、そのプラグインが有効である
Vagrant
のメジャーバージョンです。
API
の安定性は、
Vagrant
のメジャーバージョンごとにしか保証されないので、これはプ
ラグインの定義の中でも重要な部分です。
最小限の構成では、プラグインの名前をプラグインの定義に含めなければなりませ
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.