Gradle工程编译的过程，就是执行目标task的过程，如果task存在依赖，则先执行依赖task，如此反复，直到触达无依赖的task
就这样，从无依赖task -> 目标task的执行链即建立，接着依次执行task即可，每个task之间数据传输，主要是通过task inputs和outputs描述文件来完成的
所以，gradle编译所有task信息的打印，应该包含
- 按task执行顺序打印task name
- 可以打印task的inputs和outputs数据
- 将输出json信息保存到本地文件
import groovy.json.JsonOutput//输出数据结构
class TaskItem{
String aname
List inputs = new ArrayList<>()
List outputs = new ArrayList<>()
}class Dumper{
//正则表达式，用于过滤要dump inputs和outputs的task
//这里配置名称包含Jni的task，大家可以根据需要自行配置
String taskInOutDirDumpFilter = "^.*Jni.*"
String type
File logOutDir
List taskList = new ArrayList<>()
File logfile
boolean isAvaliable = falseDumper(String type, File dir){
this.type = type
this.logOutDir = dir
}def makeLogFile(){
logfile = new File(logOutDir, "taskdump-${type}.json")
if (logfile.exists()) {
logfile.delete()
}logfile.createNewFile()
}def collectData(Task t){
t.doFirst {
if (name == "pre${type}Build" && !isAvaliable){
isAvaliable = true
makeLogFile()
}if (!isAvaliable){
return
}TaskItem item = taskList.find {
it.aname == path
}if (item != null){
return
}item = new TaskItem()
item.aname = pathtaskList.add(item)def matcher = name =~ taskInOutDirDumpFilter
if (matcher.size() > 0){
println "-------match task path = ${path}"t.inputs.each {
it.files.each {
item.inputs.add(it.absolutePath)
}
}t.outputs.each {
it.files.each {
item.outputs.add(it.absolutePath)
}
}
}
}
}def dumpData2File(){
//println " ------- dumpData2File " + logfile.getPath()
def s = JsonOutput.toJson(taskList)logfile.write(s)
}
}Map dumperMap = new HashMap<>()
//数据dump目录
def dumpDir = new File(buildDir, "taskdump")
if (!dumpDir.exists()){
dumpDir.mkdirs()
}rootProject.childProjects.each {
it.value.afterEvaluate {Project pp ->
def isAndroidLibrary = pp.plugins.hasPlugin("com.android.library")
def variants = isAndroidLibrary ? pp.android.libraryVariants : pp.android.applicationVariantsvariants.all { def variant ->
// Create variant and target names
def targetName = variant.name.capitalize()
def dumper = dumperMap.get(targetName)if (dumper == null){
dumper = new Dumper(targetName, dumpDir)
dumperMap.put(targetName, dumper)
}pp.tasks.each {
dumper.collectData(it)
}
}
}
}gradle.buildFinished {
dumperMap.each {
if (it.value.isAvaliable){
it.value.dumpData2File()
}
}
}
【Gradle编译时所有Task信息打印】将脚本命名并保存到工程目录下，比如dumptask.gradle，并保存道app module的根目录，接着再app module的build.gradle引入
apply from: "dumptask.gradle"
接着执行
./gradlew assembleDebug
执行结束后, dump信息保存到如下文件
app/build/taskdump/taskdump-Debug.json
