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Gradle

• https://gradle.org
• build tool

install

• mac

brew install gradle

Simple Start

mkdir basic-demo
cd basic-demo
touch build.gradle

gradle tasks

gradle tasks --all

gradle tasks
Starting a Gradle Daemon (subsequent builds will be faster)

> Task :tasks

------------------------------------------------------------
All tasks runnable from root project
------------------------------------------------------------

Build Setup tasks
-----------------
init - Initializes a new Gradle build.
wrapper - Generates Gradle wrapper files.

Help tasks
----------
buildEnvironment - Displays all buildscript dependencies declared in root project 'bin'.
components - Displays the components produced by root project 'bin'. [incubating]
dependencies - Displays all dependencies declared in root project 'bin'.
dependencyInsight - Displays the insight into a specific dependency in root project 'bin'.
dependentComponents - Displays the dependent components of components in root project 'bin'. [incubating]
help - Displays a help message.
model - Displays the configuration model of root project 'bin'. [incubating]
projects - Displays the sub-projects of root project 'bin'.
properties - Displays the properties of root project 'bin'.
tasks - Displays the tasks runnable from root project 'bin'.

To see all tasks and more detail, run gradle tasks --all

To see more detail about a task, run gradle help --task <task>


BUILD SUCCESSFUL in 4s
1 actionable task: 1 executed

Dependency scope

• implementation : compile
• testImplementation : test
• compileOnly : provided

gradle wrapper

• for those who don't have installed gradle

gradle wrapper

• output

.
├── build.gradle
├── gradle
│   └── wrapper
│       ├── gradle-wrapper.jar
│       └── gradle-wrapper.properties
├── gradlew
└── gradlew.bat

Simple task

• build.gradle

task copy(type: Copy) {
    from 'src'
    into 'dest'
}

• check tasks

./gradlew tasks --all

• run task

./gradlew copy

Plugin

• build.gradle

plugins {
    id 'base'
}

task copy...

task zip(type: Zip) {
    from 'src'
}

• check tasks

./gradlew tasks --all

custom repository

repositories {
    maven {
      url 'http://repo.mycompany.com/maven2'
    }
}

ref

• https://guides.gradle.org/creating-new-gradle-builds/

What Else?