[英]Using Gradle to package dependencies in a WAR, while leaving transient dependencies in the EAR
我是新来的Gradle。 我只是几天前才开始查看它,我真的很喜欢它,所以我试图将我的项目转换为Gradle。
我刚遇到第一个难题。 我无法弄清楚如何防止'war'插件复制EAR中已经发现的许多瞬时依赖项。 例如,假设我要在WAR中使用org.springframework:spring-web
。 这个jar有很多瞬态依赖项,它们都打包在WEB-INF/lib
。 这是一个问题,b / c所有这些依赖项已经在我的EAR的APP-INF/lib
中,b / c还有其他使用它们的模块。
我想告诉Gradle我希望像往常一样使用所有依赖项来编译WAR代码,但是在打包WAR时,我希望对进入WEB-INF/lib
。 据我所知,此功能尚不存在。 还是我错过了什么?
我现在已经通过黑客解决了这个问题,但是我认为必须有一种更简单的方法来做到这一点。 我希望有更多经验的人可以指出我在这里出错的地方。
这是我到目前为止的内容:
apply plugin: 'war'
configurations {
// Use this config to indicate that a module should be packaged inside the WAR w/o its transitive dependencies
//
packageWithoutDependencies
// Use this one when you want to package this module and all of its dependencies in the WAR
//
packageWithDependencies
compile.extendsFrom packageWithoutDependencies
compile.extendsFrom packageWithDependencies
}
dependencies {
packageWithDependencies "org.richfaces:richfaces-bom:$richFacesVersion"
packageWithDependencies "org.richfaces.ui:richfaces-components-ui:$richFacesVersion"
packageWithDependencies "org.richfaces.core:richfaces-core-impl:$richFacesVersion"
packageWithoutDependencies "org.springframework:spring-web:$springVersion"
packageWithoutDependencies "org.springframework.security:spring-security-config:$springSecurityVersion"
packageWithoutDependencies "org.springframework.security:spring-security-taglibs:$springSecurityVersion"
packageWithoutDependencies "org.springframework.security:spring-security-web:$springSecurityVersion"
}
// The approach here is to directly modify the classpath used by the 'war' task. This is necessary
// b/c we want to compile with all the dependencies resolved as per usual, yet when we deploy,
// we only want the jars that belong in the WAR, with most transitive dependencies for those already
// deployed as 3rd party jars in the EAR.
//
task modifyWarClasspath << {
// Get the names of all non-transitive modules we are packaging
//
println " ========= WAR Modules w/o dependencies ========= "
def firstLevelDeps = configurations.packageWithoutDependencies.resolvedConfiguration.firstLevelModuleDependencies
def nonTransientDepNames = firstLevelDeps.collect { it.moduleName }
println nonTransientDepNames
// Get the names of all direct file includes we are packaging
//
println "\n ========= WAR Files w/o dependencies ========= "
def directFileIncludes = configurations.packageWithoutDependencies
.getDependencies().findAll{it.hasProperty('source')}
.source.files*.name.flatten()
println directFileIncludes
// Get the names of all transitive modules we a re packaging
//
println "\n ========= WAR Modules with dependencies ========= "
def recursiveDeps = configurations.packageWithDependencies.resolvedConfiguration
.firstLevelModuleDependencies*.allModuleArtifacts.flatten()
def transientDepNames = recursiveDeps.collect { it.name }
println transientDepNames
// Look through the WAR classpath (runtime - providedCompile), and keep only those
// files that match a module name on either of the 3 lists we made above.
//
println "\n ========= Packaging jars in the WAR ========= "
war.classpath = war.classpath.findAll {file ->
((nonTransientDepNames + transientDepNames + directFileIncludes + 'main').find {directDepName ->
file.name.startsWith(directDepName)
} != null)
}
war.classpath*.name.sort().each { println it }
println "\n\n"
}
// Enable 'packageWithDependencies' and 'packageWithoutDependencies' configs
war {
dependsOn modifyWarClasspath
}
我现在有一个很好的简单解决方案。 关键是利用“提供的”范围,然后在我的WAR依赖项中使用它来引用我的EAR依赖项。 这样,整个WAR类路径中的类路径可以从EAR依赖项中减去,因此只有Web依赖项被打包在WAR中。 漂亮又简单。
这是如何做:
configurations {
provided {
dependencies.all { dep ->
configurations.default.exclude(group: dep.group, module: dep.name)
}
}
compile.extendsFrom provided
}
然后在您的WAR项目中,您可以执行以下操作:
dependencies {
provided project(':DFIPConfig')
provided project(':DFIPSAPBatch')
provided project(':DFIPDomain')
// etc...
compile project(':DryDockProjects:DryDockWebProjects:CommonWebWCAGJar')
compile project(':DryDockProjects:DryDockWebProjects:CommonParticipantWeb')
// etc...
// Other WAR dependencies as per usual
}
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