[Gradle] Task Tutorial

Gradle 을 이용한 build.gradle 작성 시 튜토리얼을 한번 보고 해보면 좋습니다.

 

[공식문서]

https://docs.gradle.org/current/userguide/tutorial_using_tasks.html

https://docs.gradle.org/current/dsl/org.gradle.api.Task.html

 

Task 의 실행 단계는 

- Task 본문의 Configuration

- doFirst

- doLast

단계로 실행 됩니다.

 

이 실행 단계를 이해 하기 위해서는 아래 문서를 참고 하세요.

 

[공식문서]

https://docs.gradle.org/current/userguide/build_lifecycle.html

Initialization

Gradle supports single and multi-project builds. 
During the initialization phase, Gradle determines 
which projects are going to take part in the build, 
and creates a Project instance for each of these projects.

Configuration

During this phase the project objects are configured. 
The build scripts of all projects which are part of the build are executed.

Execution

Gradle determines the subset of the tasks, 
created and configured during the configuration phase, to be executed. 
The subset is determined by the task name arguments passed to the gradle command 
and the current directory. 
Gradle then executes each of the selected tasks.

settings.gradle > build.gradle > task configured > task internal configuration > task

 

더불어서 task 가 실행 되지 않는 경우가 있는데 이 경우는 아래의 경우 실행 되지 않습니다.

 

- SKIPPED

Task did not execute its actions.

• Task has been explicitly excluded from the command-line. See Excluding tasks from execution.

• Task has an onlyIf predicate return false. See Using a predicate.

- NO-SOURCE

Task did not need to execute its actions.

• Task has inputs and outputs, but no sources. For example, source files are .java files for JavaCompile.