前言
为了学习 Spring 源码，想在源码上做注释，因此将源码 clone 下来本地编译。最终编译环境OK拉，就是有报红的错误信息，受不了尝试解决掉。
本地环境
IDEA 2018.2
gradle-5.6
spring-framework-5.2.2.RELEASE
jdk-11.0.13
错误信息如下：
fatal: Not a git repository (or any of the parent directories): .git Build scan background action failed. org.gradle.process.internal.ExecException: Process 'command 'git'' finished with non-zero exit value 128 at org.gradle.process.internal.DefaultExecHandle$ExecResultImpl.assertNormalExitValue(DefaultExecHandle.java:409) at org.gradle.process.internal.DefaultExecAction.execute(DefaultExecAction.java:38) at org.gradle.process.internal.DefaultExecActionFactory.exec(DefaultExecActionFactory.java:138) at org.gradle.groovy.scripts.DefaultScript.exec(DefaultScript.java:261) at org.gradle.api.Script$exec$2.callCurrent(Unknown Source) at build_scan_user_data_2rsmasghcc3j7r3ugqr2evkod.execAndGetStdout(/home/smqk/git/spring-framework-5.2.2.RELEASE/gradle/build-scan-user-data.gradle:73) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:104) at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:326) at org.gradle.internal.metaobject.BeanDynamicObject$MetaClassAdapter.invokeMethod(BeanDynamicObject.java:479) at org.gradle.internal.metaobject.BeanDynamicObject.tryInvokeMethod(BeanDynamicObject.java:191) at org.gradle.groovy.scripts.BasicScript$ScriptDynamicObject.tryInvokeMethod(BasicScript.java:130) at org.gradle.internal.metaobject.ConfigureDelegate.invokeMethod(ConfigureDelegate.java:77) at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeOnDelegationObjects(ClosureMetaClass.java:398) at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:338) at org.codehaus.groovy.runtime.callsite.PogoMetaClassSite.callCurrent(PogoMetaClassSite.java:68) at build_scan_user_data_2rsmasghcc3j7r3ugqr2evkod$_addGitMetadata_closure1.doCall(/home/smqk/git/spring-framework-5.2.2.RELEASE/gradle/build-scan-user-data.gradle:26) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:104) at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:326) at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:264) at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1041) at groovy.lang.Closure.call(Closure.java:411) at groovy.lang.Closure.call(Closure.java:427) at org.gradle.util.ClosureBackedAction.execute(ClosureBackedAction.java:71) at org.gradle.util.ConfigureUtil.configureTarget(ConfigureUtil.java:154) at org.gradle.util.ConfigureUtil.configure(ConfigureUtil.java:105) at org.gradle.util.ConfigureUtil$WrappedConfigureAction.execute(ConfigureUtil.java:166) at com.gradle.scan.plugin.internal.api.j.a(SourceFile:19) at com.gradle.scan.plugin.internal.api.k$a.a(SourceFile:112) at com.gradle.scan.plugin.internal.api.h.a(SourceFile:61) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748) CONFIGURE SUCCESSFUL in 3s CONFIGURE SUCCESSFUL in 167ms
解决
看错误信息应该是 gradle 中的 git 相关影响的。尝试了一下，注释 gradle.build 如下代码解决问题：
// 注释了，解决本地总是 fatal: Not a git repository (or any of the parent directories): .git 错误 //apply from: "$rootDir/gradle/build-scan-user-data.gradle"
重新刷新了一下，OK
> Task :buildSrc:compileJava UP-TO-DATE > Task :buildSrc:compileGroovy NO-SOURCE > Task :buildSrc:pluginDescriptors UP-TO-DATE > Task :buildSrc:processResources UP-TO-DATE > Task :buildSrc:classes UP-TO-DATE > Task :buildSrc:jar UP-TO-DATE > Task :buildSrc:assemble UP-TO-DATE > Task :buildSrc:pluginUnderTestMetadata UP-TO-DATE > Task :buildSrc:compileTestJava NO-SOURCE > Task :buildSrc:compileTestGroovy NO-SOURCE > Task :buildSrc:processTestResources NO-SOURCE > Task :buildSrc:testClasses UP-TO-DATE > Task :buildSrc:test NO-SOURCE > Task :buildSrc:validateTaskProperties UP-TO-DATE > Task :buildSrc:check UP-TO-DATE > Task :buildSrc:build UP-TO-DATE CONFIGURE SUCCESSFUL in 6s CONFIGURE SUCCESSFUL in 207ms
测试了一下写的demo代码运行正常。 此错误解决，暂时告一段落。
