任务创建
1、 task hello{
}
task hello<< {
}
task hello(dependsOn:hello1)<<{
}
task(hello)<<{
}
task('hello')<<{
}
动态创建
4.times {
counter->
task "task$counter" <<{
}
}
tasks.create(name:'hello')<<{
println "hello"
}
2、扩展task属性／自定义task属性
task myTask<<{
ext.myproperties ="properties"
}
efaultTasks 'clean','run'
task distribution <<{
println "We build the zip with version = $version"
}
task release (dependsOn :'distribution')<<{
println 'We release now'
}
gradle.taskGraph.whenReady {
taskGraph->
if(taskGraph.hasTask(release)){
version = '1.0'
}else {
version = '1.0-SNAPSHOT'
}
}
3、排除任务 -X
gradle task1 -x task2
4、列举依赖和属性
gradle -q dependencies api:dependencies
gradle -q app:properties
5、gradle属性和系统属性
gradle -q printProps -P commandLineProjectProp="this is a commandline prop" -D org.gradle.project.systemProjectProp="this a gradle property"
task printProps <<{
println commandLineProjectProp
println systemProjectProp
println gradleFileProperties
}
6、使用tasks容器来定位
task hello
println tasks.hello.name
println tasks['hello'].name
rintln tasks.getByPath('hello').path
println tasks.getByPath(':hello').path
7、配置任务
task myCopy(type:Copy)
println myCopy.name
task copy(type:Copy){
from 'resources'
into 'target'
include('**/*.txt','**/*.xml','**/*.properties')
task copyTaskWithPaths(type:Copy){
from 'src/main/webapp'
into 'build/explodedWar'
include '**/*.html'
include '**/*.jsp'
exclude{
details ->details.file.name.endsWith('/html')&&
details.file.text.contains('staging')
}
8、使用闭包的方式配置依赖
task taskX << {
println 'taskX'
}
taskX.dependsOn{
tasks.findAll{
task -> task.name.startsWith('lib')
}
}
task lib1<<{
println 'lib1'
}
task lib2 <<{
println 'lib2'
}
9、任务覆盖
task copy << {
println "this is a first"
}
task copy(overwrite:true)<<{
println "this is a second"
}
10、跳过任务
task hello <<{
println 'hello world'
}
hello.onlyIf{!project.hasProperty('skipHello')}
可以通过抛出异常，来跳过某个任务的执行
task compile <<{
println "We are doing the compile"
}
compile.doFirst{
if(true){throw new StopExecutionException()}
}
task myTask(dependsOn:'compile')<<{
println 'I am not affected'
}
任务的enabled属性
task disableMe <<{
println 'ni dou bu hui zhi xing ,ni hai shuo zhe me duo hua'
}
disableMe.enabled = false
11、任务规则
tasks.addRule("Pattern:ping"){
String taskName ->
if(taskName.startsWith("ping")){
task(taskName)<<{
println taskName
println "Pinging: " + (taskName-'ping')
}
}
}
12、文件集合-FileCollection
task list << {
File srcDir
// Create a file collection using a closure
FileCollection collection = files { srcDir.listFiles() }
srcDir = file('src')
println "Contents of $srcDir.name"
collection.collect { relativePath(it) }.sort().each { println it }
srcDir = file('src2')
println "Contents of $srcDir.name"
collection.collect { relativePath(it) }.sort().each { println it }
}
FileTree tree = fileTree(dir: 'src/main')
tree.include '**/*.java'
tree.exclude '**/Abstract*'
tree = fileTree('src').include('**/*.java')
tree = fileTree('src') {
include '**/*.java'
}
tree = fileTree(dir: 'src', include: '**/*.java')
tree = fileTree(dir: 'src', includes: ['**/*.java', '**/*.xml'])
tree = fileTree(dir: 'src', include: '**/*.java', exclude: '**/*test*/**')
task findTree(dependsOn:'create') <<{
FileTree filtered = tree.matching{
include 'org/gradle/api/**'
}
FileTree sum = tree + fileTree(dir:'src/test')
tree.visit{
element ->
println "$element.relativePath =>$element.file"
}
}
task create {
File testFile = file('src/test/java')
testFile.mkdirs()
}
FileTree zip = zipTree('someFile.zip')
FileTree tar = tarTree('someFile.tar')
FileTree someTar = tarTree(resources.gzip('someTar.ext'))
tasks.withType(JavaCompile){
}
project.afterEvaluate {
}
tasks.whenTaskAdded {
thetask->
if (thetask.name.equals(lib1)){
thetask.dependsOn lib2
}
}
添加规则：project.getTasks().addRule("Pattern:incrementversion"){
String taskName->
if (taskName.startsWith("increment")&& taskName.endsWith("version")){
task(taskName)<<{
String classifier= taskName-'increment'-'version'
switch (classifier){
default:
break
}
}
}
}
gralde 部分编译：
gradlew :app:build -a 或者 --no-rebuild
