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我正在使用sbt,sbt-native-packager和sbt-proguard为3个环境(例如dev,staging和生产环境)打包。我想要做的是能够指定是否使用proguard来制作一个包。例如,下面的命令使使用ProGuard包:如何在给定系统属性时配置SBT跳过proguard任务。
$ sbt -Dforceobfuscate=true -Denv=dev rpm:pakageBin
,但下面的命令使包不proguard的
$ sbt -Denv=dev rpm:packageBin
我尝试了两种设置。一个是通过系统属性条件覆盖任务,另一个是通过动态任务覆盖任务。
1.按系统属性重写任务。
ProguardKeys.proguard in Proguard := {
if (sys.props.get("forceobfuscate").isDefined) {
(ProguardKeys.proguard in Proguard).value
} else {
Seq(new File("dummy"))
}
}
此设置始终运行proguard任务(我不知道为什么)。 另外我尝试了以下设置,以确保覆盖任务可以停止任务。
ProguardKeys.proguard in Proguard := {
if (sys.props.get("forceobfuscate").isDefined) {
// (ProguardKeys.proguard in Proguard).value
Seq(new File("dummy"))
} else {
Seq(new File("dummy"))
}
}
确实,上面的设置总是跳过proguard任务。
2.使用动态任务执行任务。
def obfuscateOrNot = Def.taskDyn {
if (sys.props.get("forceobfuscate").isDefined) {
Def.task {
(ProguardKeys.proguard in Proguard).value
}
} else {
Def.task {
Seq(new File("dummy"))
}
}
}
ProguardKeys.proguard in Proguard := {
obfuscateOrNot.value
}
然后运行命令:
$ sbt rpm:packageBin
好吧,这一次跳过proguard的任务。但是,当我运行命令:
$ sbt -Dforceobfuscate=true rpm:packageBin
我得到了以下错误:
sbt.Init$RuntimeUndefined: References to undefined settings at runtime.
sbt.Init$RuntimeUndefined: References to undefined settings at runtime.
setting(ScopedKey(Scope(Select(ProjectRef(file:/work/backend/,backend)),Select(ConfigKey(proguard)),Global,Global),proguard)) at RangePosition(/work/backend/build.sbt,LineRange(244,247)) referenced from ScopedKey(Scope(Select(ProjectRef(file:/work/backend/,backend)),Select(ConfigKey(proguard)),Global,Global),proguard)
at sbt.Init$class.sbt$Init$$handleUndefined(Settings.scala:511)
at sbt.Init$$anon$4.apply(Settings.scala:516)
at sbt.Init$$anon$4.apply(Settings.scala:516)
at sbt.$tilde$greater$$anon$6.apply(TypeFunctions.scala:39)
at sbt.$tilde$greater$$anon$6.apply(TypeFunctions.scala:39)
at sbt.std.FullInstance$$anonfun$flatten$1$$anonfun$apply$3.apply(TaskMacro.scala:51)
at sbt.std.FullInstance$$anonfun$flatten$1$$anonfun$apply$3.apply(TaskMacro.scala:51)
at scala.Function1$$anonfun$compose$1.apply(Function1.scala:47)
at sbt.$tilde$greater$$anonfun$$u2219$1.apply(TypeFunctions.scala:40)
at sbt.std.Transform$$anon$4.work(System.scala:63)
at sbt.Execute$$anonfun$submit$1$$anonfun$apply$1.apply(Execute.scala:228)
at sbt.Execute$$anonfun$submit$1$$anonfun$apply$1.apply(Execute.scala:228)
at sbt.ErrorHandling$.wideConvert(ErrorHandling.scala:17)
at sbt.Execute.work(Execute.scala:237)
at sbt.Execute$$anonfun$submit$1.apply(Execute.scala:228)
at sbt.Execute$$anonfun$submit$1.apply(Execute.scala:228)
at sbt.ConcurrentRestrictions$$anon$4$$anonfun$1.apply(ConcurrentRestrictions.scala:159)
at sbt.CompletionService$$anon$2.call(CompletionService.scala:28)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
[error] (proguard:proguard) sbt.Init$RuntimeUndefined: References to undefined settings at runtime.
[error] setting(ScopedKey(Scope(Select(ProjectRef(file:/work/backend/,backend)),Select(ConfigKey(proguard)),Global,Global),proguard)) at RangePosition(/work/backend/build.sbt,LineRange(244,247)) referenced from ScopedKey(Scope(Select(ProjectRef(file:/work/backend/,backend)),Select(ConfigKey(proguard)),Global,Global),proguard)
[error] Total time: 1 s, completed 2017/07/29 12:09:24
我认为错误说,没有设置用于proguard的,但我不知道如何设置使用动态设置任务。
我想使上述命令工作良好。任何解决方案都很好。