Java 为什么是Gradle';构建';即使源代码没有更改,任务也不是最新的?
我为spring应用程序创建了一个Gradle项目。我的build.gradle如下所示:Java 为什么是Gradle';构建';即使源代码没有更改,任务也不是最新的?,java,spring,gradle,spring-boot,spring-boot-gradle-plugin,Java,Spring,Gradle,Spring Boot,Spring Boot Gradle Plugin,我为spring应用程序创建了一个Gradle项目。我的build.gradle如下所示: buildscript { ext { springBootVersion = '1.3.5.RELEASE' } repositories { mavenCentral() jcenter() } dependencies { classpath("org.springframework.boot:s
buildscript {
ext {
springBootVersion = '1.3.5.RELEASE'
}
repositories {
mavenCentral()
jcenter()
}
dependencies {
classpath("org.springframework.boot:spring-boot-gradle-plugin:${springBootVersion}")
classpath('org.asciidoctor:asciidoctor-gradle-plugin:1.5.3')
}
}
apply plugin: 'java'
apply plugin: 'spring-boot'
jar {
baseName = 'edge'
version = '0.0.1-SNAPSHOT'
}
sourceCompatibility = 1.8
targetCompatibility = 1.8
repositories {
mavenCentral()
}
bootRepackage {
excludeDevtools = true
}
dependencies {
compile('org.springframework.boot:spring-boot-starter-actuator')
compile('org.springframework.boot:spring-boot-actuator-docs')
compile('org.springframework.boot:spring-boot-starter-aop')
compile('org.springframework.cloud:spring-cloud-starter-config')
compile('org.springframework.cloud:spring-cloud-starter-eureka')
compile('org.springframework.cloud:spring-cloud-starter-hystrix')
compile('org.springframework.cloud:spring-cloud-starter-hystrix-dashboard')
compile('org.springframework.cloud:spring-cloud-starter-ribbon')
compile('org.springframework.cloud:spring-cloud-starter-zuul')
compile('org.springframework.boot:spring-boot-starter-hateoas')
compile('org.springframework.boot:spring-boot-starter-data-jpa')
compile('org.springframework.boot:spring-boot-starter-redis')
compile('org.projectlombok:lombok:1.16.6')
compile('org.springframework.boot:spring-boot-starter-security')
compile('org.springframework.session:spring-session')
compile('org.springframework.boot:spring-boot-starter-web') {
exclude module: 'spring-boot-starter-tomcat'
}
compile('org.springframework.boot:spring-boot-starter-undertow')
compile('org.springframework.boot:spring-boot-starter-websocket')
compile('com.h2database:h2')
compile('org.springframework.boot:spring-boot-devtools')
testCompile('org.springframework.boot:spring-boot-starter-test')
testCompile('org.springframework.restdocs:spring-restdocs-mockmvc')
}
dependencyManagement {
imports {
mavenBom "org.springframework.cloud:spring-cloud-dependencies:Brixton.RELEASE"
}
}
eclipse {
classpath {
containers.remove('org.eclipse.jdt.launching.JRE_CONTAINER')
containers 'org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8'
}
}
然后每次我运行gradlebuild
时,在源代码中没有任何更改,总会执行一些任务,而我认为这些任务应该是最新的:
➜ octopus git:(master) ✗
➜ octopus git:(master) ✗ gradle :edge:build
:edge:compileJava UP-TO-DATE
:edge:processResources UP-TO-DATE
:edge:classes UP-TO-DATE
:edge:findMainClass
:edge:jar
:edge:bootRepackage
:edge:assemble
:edge:compileTestJava UP-TO-DATE
:edge:processTestResources UP-TO-DATE
:edge:testClasses UP-TO-DATE
:edge:test UP-TO-DATE
:edge:check UP-TO-DATE
:edge:build
BUILD SUCCESSFUL
Total time: 6.773 secs
This build could be faster, please consider using the Gradle Daemon: https://docs.gradle.org/2.13/userguide/gradle_daemon.html
➜ octopus git:(master) ✗ md5 edge/build/libs/edge-0.0.1-SNAPSHOT.jar
MD5 (edge/build/libs/edge-0.0.1-SNAPSHOT.jar) = d0ff71c362d089559bbc627e78e2247a
➜ octopus git:(master) ✗ gradle :edge:build
:edge:compileJava UP-TO-DATE
:edge:processResources UP-TO-DATE
:edge:classes UP-TO-DATE
:edge:findMainClass
:edge:jar
:edge:bootRepackage
:edge:assemble
:edge:compileTestJava UP-TO-DATE
:edge:processTestResources UP-TO-DATE
:edge:testClasses UP-TO-DATE
:edge:test UP-TO-DATE
:edge:check UP-TO-DATE
:edge:build
BUILD SUCCESSFUL
Total time: 6.579 secs
This build could be faster, please consider using the Gradle Daemon: https://docs.gradle.org/2.13/userguide/gradle_daemon.html
➜ octopus git:(master) ✗ md5 edge/build/libs/edge-0.0.1-SNAPSHOT.jar
MD5 (edge/build/libs/edge-0.0.1-SNAPSHOT.jar) = d1c3fc5c9d0c00e0130c8c65f23b6466
➜ octopus git:(master) ✗
如您所见,任务“findMainClass”、“jar”、“bootRepackage”、“Assembly”和“build”被认为是非最新的,并且总是执行的。每次生成的jar文件都不同,因为它们有不同的MD5摘要
那么,格雷德尔为什么会这样?如何使它们都是最新的并加快构建过程?默认情况下,Spring Boot的
bootRepackage
任务会覆盖由jar
任务创建的jar。这意味着jar
任务总是被认为是过时的。通过使用分类器配置bootRepackage
,可以避免这种情况,以便将重新打包的胖jar写入单独的位置。例如:
bootRepackage {
classifier = 'exec'
}
您可能还对我们希望对Boot的Gradle插件进行的一些改进感兴趣。谢谢。真正让我烦恼的是,我使用
com.bmuschko:gradle docker插件
与docker集成,docker的任务是构建docker映像,包括可执行jar。每次执行gradlebuilddockerimage
时,如果源代码没有更改,它总是会构建docker映像,这是一项耗时的任务。