Gradle Wrapperの使用方法
このチュートリアルでは、プロジェクトのGradleラッパーの作成方法と使用方法を示します。
What is Gradle wrapper?
Gradleラッパーを使用すると、システムにGradleがインストールされていなくても、Gradleタスクを実行できます。
1. Gradleラッパーを作成する
1.1 Declares a wrapper task.
build.gradle
task wrapper(type: Wrapper) {
gradleVersion = '2.10' //we want gradle 2.10 to run this project
}
1.2 Run the wrapper task with gradle wrapper
$ gradle wrapper :wrapper BUILD SUCCESSFUL
1.3 The following files will be created, remember to add these files and folders to your version control system (e.g GitHub or Bitbucket).
|-gradle
|--- wrapper
|--- gradle-wrapper.jar
|--- gradle-wrapper.properties
|-gradlew
|-gradlew.bat
Gradleタスクを実行するためのUNIXシェルスクリプトであるgradlewファイルを確認します。
2. Gradle Wrapperの使用方法
2.1 Assume your Gradle project along with the Gradle wrapper files are added to GitHub, and someone wants to clone your project and try to run it without installing Gradle on their system.
2.2 They can download the project and run it with gradlew, read comments for self-explanatory :
$ git clone https://github.com/example/spring4-mvc-gradle-annotation-hello-world.git $ cd spring4-mvc-gradle-annotation-hello-world # wait, build? we don't have Gradle install yet? No problem, gradlew will handle it. $ ./gradlew build # first time, download the gradle 2.10.. # download project dependencies # run the gradle build task # ...wow, we run a Gradle task without installing Gradle! # try run jettyRun task $ ./gradlew jettyRun 16:16:21 INFO Jetty 9.2.10.v20150310 started and listening on port 8080 16:16:21 INFO spring4 runs at: 16:16:21 INFO http://localhost:8080/spring4 Press any key to stop the server. $ ./gradlew task
完了しました。