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[英]See dependency tree for single configuration in gradle (using `dependencies` task)
[英]Gradle : Task dependency tree ignored?
我对gradle的任务依赖项有疑问。
我有一个version.properties文件,必须将其清除(在执行清理任务时)或在版本中(执行战争任务时)填充版本信息。
因此,我设置了这种依赖关系:
clean.dependsOn clearVersionProperties
和
processResources.dependsOn ([defaultValues,infoEnv])
compileJsps.dependsOn(classes, tomcatJasper, xmlModify)
war.dependsOn(compileJsps, svnRevision, writeVersionProperties)
我的任务已在commons.gradle中外部化,如下所示:
...
def writeVersionFile(String whatToWrite) {
File f = new File(project.webAppDirName+'/WEB-INF/version.properties');
if (f.exists()) { f.delete(); }
f = new File(project.webAppDirName+'/WEB-INF/version.properties');
FileOutputStream os = new FileOutputStream(f);
os.write(whatToWrite.getBytes());
os.flush();
os.close();
}
task clearVersionProperties() {
println "Clearing version file"
String whatToWrite = "version=@version@"
writeVersionFile(whatToWrite)
}
task writeVersionProperties(dependsOn: svnRevision) {
println "Writing version file"
String whatToWrite = "version="+project.ext.revision;
writeVersionFile(whatToWrite)
}
...
根据我的理解,clean现在将调用clearVersionProperties,而war将调用writeVersionProperties。
但是当我执行gradle clean时,反应堆计划如下所示:
C:\devtools\....\branches\merge\Application>gradle -bbuild20.gradle clean -Ptomcat=7 -Ptarget=live
To honour the JVM settings for this build a new JVM will be forked. Please consider using the daemon: http://gradle.org/
docs/2.0/userguide/gradle_daemon.html.
_______________________________________________________________________________
### building LIVE system
_______________________________________________________________________________
Clearing version file
Writing version file
JSP compilation...
TC7 Sources integrated
________________________________________________________
Compiling JSPs against Tomcat 7.0.11
________________________________________________________
:clearVersionProperties UP-TO-DATE
:clean UP-TO-DATE
BUILD SUCCESSFUL
Total time: 16.803 secs
由于将任务clearVersionProperties和writeVersionProperties绑定到某些构建阶段,为什么还要执行这些任务? 例如任务infoEnv没有执行,但是-这的确是个问题-任务writeVersionProperties仅应由war任务执行。
任何帮助表示赞赏!
同时,我发现了为什么执行这些任务的原因:
我错过了任务说明后的<< <<,所以将我的两个任务更改为
task clearVersionProperties() << {
println "Clearing version file"
String whatToWrite = "version=@version@"
writeVersionFile(whatToWrite)
}
task writeVersionProperties(dependsOn: [svnRevision]) << {
println "Writing version file"
String whatToWrite = "version="+project.ext.revision;
writeVersionFile(whatToWrite)
}
writeVersionProperties.mustRunAfter clearVersionProperties
这样就完成了工作...。我不确定这是错误,功能还是副作用。 但是在我看来,这完全是一个邪恶的陷阱,就像在函数之后忘记()一样。
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