一、概念
gradle是怎么运行的
Android中每个工程下面都有build.gradle,每个Moudle下面也有build.gradle,里面的内容都是以大括号为层级结构,那么我们猜测task也是对这些层级结构进行解析,最终进行编译,其实事实也是这样的,下面看一下自定义gradle的层级结构
二、典型例子
(1)在目录plugin/src/main/groovy/com/micky/gradle/下新建插件类MyCustomPlugin.groovy
package com.micky.gradle;
import org.gradle.api.*;
class MyCustomPlugin implements Plugin<Project> {
void apply(Project project) {
project.task('myTask') << {
println "Hi this is micky's plugin"
}
}
}
(2)在目录plugin/src/main/resources/META-INF/gradle-plugins/下创建文件com.micky.mycustom.properties用来指定插件实现类
implementation-class=com.micky.gradle.MyCustomPlugin
特别注意下:文件名“com.micky.mycustom”即是以后我们在使用插件时的apply plugin 'Java' 的java。(3)在plugin目录下新建settings.gradle,里面写入插件名称
rootProject.name='gradle-micky'
(4)编译需要在plugin目录下新建build.gradle
apply plugin: 'groovy'
apply plugin: 'maven'
dependencies {
compile gradleApi()
compile localGroovy()
}
repositories {
mavenCentral()
}
group='com.micky'
version='1.0.1'
uploadArchives {
repositories {
mavenDeployer {
repository(url: uri('../repo'))
}
}
}
(5)执行命令: gradle uploadArchives 进行编译,就会在本地创建gradle插件
(6)在sample目录下建立build.gradle,用来测试插件
buildscript {
repositories {
maven {
url uri('../repo')
}
}
dependencies {
classpath group: 'com.micky',
name: 'gradle-micky',
version: '1.0.0'
}
}
apply plugin: 'com.micky.mycustom'
(7)执行命令 gradle customTask 命令得结果(1)直接沿用上一篇的代码,copy一份改名CustomPluginTask
在plugin\src\main\groovy\com\micky\gradle目录创建源文件 MyCustomTask.groovy
package com.micky.gradle;
import org.gradle.api.DefaultTask
import org.gradle.api.tasks.TaskAction
class MyCustomTask extends DefaultTask {
@TaskAction
void output() {
println "Hello this is my custom task output"
}
}
(2)修改MyCustomPlugin.groovy
package com.micky.gradle;
import org.gradle.api.*;
class MyCustomPlugin implements Plugin<Project> {
void apply(Project project) {
project.task('customTask', type: MyCustomTask)
}
}
(3)改一下版本号,直接和上面一样编译,运行即可,这里是自定义的task
四、task有参数
拷贝一份上面的代码,改名为CustomPluginTaskWithParam,修改plugin\src\main\groovy\com\micky\gradle\MyCustomPlugin.groovy
package com.micky.gradle;
import org.gradle.api.*;
class MyCustomPluginExtension {
def message = "From MyCustomPluginExtention"
def sender = "MyCustomPluin"
}
class MyCustomPlugin implements Plugin<Project> {
void apply(Project project) {
project.extensions.create('myArgs', MyCustomPluginExtension)
project.task('customTask', type: MyCustomTask)
}
}
(2)修改plugin\src\main\groovy\com\micky\gradle\MyCustomTask.groovy
package com.micky.gradle;
import org.gradle.api.DefaultTask
import org.gradle.api.tasks.TaskAction
class MyCustomTask extends DefaultTask {
@TaskAction
void output() {
println "Sender is ${project.myArgs.sender},\nmessage: ${project.myArgs.message}"
}
}
(3)修改plugin/build.gradle
apply plugin: 'groovy'
apply plugin: 'maven'
dependencies {
compile gradleApi()
compile localGroovy()
}
repositories {
mavenCentral()
}
group='com.micky'
version='1.0.2'
uploadArchives {
repositories {
mavenDeployer {
repository(url: uri('../repo'))
}
}
}
(4)执行gradle uploadArchives 编译插件包,修改sample/build.gradle
buildscript {
repositories {
maven {
url uri('../repo')
}
}
dependencies {
classpath group: 'com.micky',
name: 'gradle-micky',
version: '1.0.2'
}
}
apply plugin: 'com.micky.mycustom'
(5)执行gradle customTask 得到结果
(6)在gradle文件配置参数
buildscript {
repositories {
maven {
url uri('../repo')
}
}
dependencies {
classpath group: 'com.micky',
name: 'gradle-micky',
version: '1.0.2'
}
}
apply plugin: 'com.micky.mycustom'
myArgs {
sender='Micky Liu'
message='Gradle is so simple.'
}
(7)执行gradle customTask五、task有嵌套参数
(1)拷贝一份上面的代码,改名为CustomPluginTaskWithNestParam,修改plugin\src\main\groovy\com\micky\gradle\MyCustomPlugin.groovy
package com.micky.gradle;
import org.gradle.api.*;
class MyNestPluginExtension {
def receiver = "Kate Zhou"
def email = "KateZhou@gmail.com"
}
class MyCustomPluginExtension {
def message = "From MyCustomPluginExtention"
def sender = "MyCustomPluin"
}
class MyCustomPlugin implements Plugin<Project> {
void apply(Project project) {
project.extensions.create('myArgs', MyCustomPluginExtension)
project.myArgs.extensions.create('nestArgs', MyNestPluginExtension)
project.task('customTask', type: MyCustomTask)
}
}
(2)修改MyCustomPlugin.groovy
package com.micky.gradle;
import org.gradle.api.DefaultTask
import org.gradle.api.tasks.TaskAction
class MyCustomTask extends DefaultTask {
@TaskAction
void output() {
println "Sender is ${project.myArgs.sender} \nmessage: ${project.myArgs.message}"
println "Receiver is ${project.myArgs.nestArgs.receiver} \nemail: ${project.myArgs.nestArgs.email}"
}
}
(3)修改plugin/build.gradle
apply plugin: 'groovy'
apply plugin: 'maven'
dependencies {
compile gradleApi()
compile localGroovy()
}
repositories {
mavenCentral()
}
group='com.micky'
version='1.0.3'
uploadArchives {
repositories {
mavenDeployer {
repository(url: uri('../repo'))
}
}
}
(4)执行gradle uploadArchives 编译插件包
(5)修改sample/build.gradle 配置参数
buildscript {
repositories {
maven {
url uri('../repo')
}
}
dependencies {
classpath group: 'com.micky',
name: 'gradle-micky',
version: '1.0.3'
}
}
apply plugin: 'com.micky.mycustom'
myArgs {
sender='Micky Liu'
message='Gradle is so simple.'
nestArgs {
receiver='David Chen'
email='David@126.com'
}
}
(6)执行gradle customTask
尊重作者,尊重原创,参考文章
http://blog.csdn.net/liuhongwei123888/article/details/50542104
http://blog.csdn.net/liuhongwei123888/article/details/50541759