Gradle for Projects(I)Gradle Concept-优快云博客

本文链接：https://blog.youkuaiyun.com/magic_dreamer/article/details/83943460

本文详细介绍如何安装Gradle及其前提条件，并通过多个示例演示Gradle的基础用法，包括任务定义、依赖任务、动态任务创建、现有任务操作、行为添加及默认任务设置。

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Gradle for Projects(I)Gradle Concept

1. Install the gradle
Prerequisites
jdk1.5+, any existing groovy installation is ignored by Gradle.

download the latest file
http://repo.gradle.org/gradle/distributions/gradle-1.0-milestone-3-bin.zip

unpacking
>unzip gradle-1.0-milestone-3-bin.zip
>mv gradle-1.0-milestone-3 ../tools/
>cd ../tools/gradle-1.0-milestone-3

configure in /etc/environment
GRADLE_HOME=/home/luohua/tools/gradle-1.0-milestone-3
PATH="...snip...:${GRADLE_HOME}/bin"
>. /etc/environment

verify the installation
>gradle -v

2. Build Script Basics
2.1 basic task
>vi build.gradle
task hello {
doLast {
println 'hello carl!'
}
}

>gradle -q hello

2.2 dependency tasks
>vi build.gradle
task hello << {
println "hello carl!";
}
task introduce(dependsOn: hello) << {
println "That is great!";
}

2.3 Dynamic tasks
>vi build.gradle
4.times {
counter ->
task "task$counter" << {
println "task number $counter";
}
}
>gradle -q tasks

2.4 Manipulating existing tasks
>vi build.gradle
4.times {
counter ->
task "task$counter" << {
println "task number $counter";
}
}
task0.dependsOn task2, task3
>gradle -q task0

2.5 Adding behaviour
>build.gradle
task hello << {
println "hello 1"
}
hello.doFirst {
println "hello 2";
}
hello.doLast {
println "hello 3";
}
hello << {
println "hello 4";
}
>console output: hello 2 hello 1 hello 3 hello 4

2.5 Dynamic task properties
>vi build.gradle
task mytask
mytask.myproperty = "test";

task showProps << {
println mytask.myproperty;
}
>gradle -q showProps
test

2.6 Default tasks
>vi build.gradle
defaultTasks 'clean', 'run'
>gradle -q
eq to
>gradle -q clean run

references:
http://www.gradle.org/
http://www.gradle.org/tutorials.html