Listen for git push event from plugin in 2019.2

There is direct API to listen for Push, however, this can be achieved with some heuristic.

One can listen for GIT_AUTHENTICATION_SUCCESS to know when any remote operation (pull, push or fetch) completes successfully.

Then, to make sure it was actually a push, one can use git4idea.branch.GitBranchIncomingOutgoingManager#hasIncomingFor. It should be true before the operation and false after it.

Thanks for your help, the listener works.

But I dont quite get the check for a push to work. For example if I push and then fetch, hasIncomingFor also returns false for the fetch.

Is there any other way to get that information?

Sorry, my bad, you should check `hasOutgoingFor`, not `hasIncomingFor`, of course. Push is about transferring commits from the local repo after all.

Also, see https://youtrack.jetbrains.com/issue/IDEA-219145

I'm sorry, but I still dont really get it to work (probably because I dont really know how this should work).

Am I correct and the hasOutgoingFor basically checks if this small green arrow is next to the branch in the branch dropdown?

If thats true, then I think it should work to test the state before and after the push, but how do I do that. As far as I can see it, the listener is only called before (?) the actual push, at least at that point hasOutgoingFor returns true. But how would I make the check after the operation?

why my program is error

git4idea.commands.GitStandardProgressAnalyzer$1.onLineAvailable(GitStandardProgressAnalyzer.java:46) 
2022-05-24 20:40:07,112 [ 453727]  ERROR - intellij.openapi.progress.Task - object is not an instance of declaring class 
java.lang.IllegalArgumentException: object is not an instance of declaring class
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    at com.intellij.util.messages.impl.MessageBusImpl.invokeListener(MessageBusImpl.java:652)
    at com.intellij.util.messages.impl.MessageBusImpl.deliverMessage(MessageBusImpl.java:426)
    at com.intellij.util.messages.impl.MessageBusImpl.pumpWaitingBuses(MessageBusImpl.java:401)
    at com.intellij.util.messages.impl.MessageBusImpl.pumpMessages(MessageBusImpl.java:383)
    at com.intellij.util.messages.impl.MessageBusImpl.access$100(MessageBusImpl.java:33)
    at com.intellij.util.messages.impl.MessageBusImpl$MessagePublisher.invoke(MessageBusImpl.java:189)
    at com.sun.proxy.$Proxy173.authenticationSucceeded(Unknown Source)
    at git4idea.push.GitPushOperation.doPush(GitPushOperation.java:381)
    at git4idea.push.GitPushOperation.push(GitPushOperation.java:286)
    at git4idea.push.GitPushOperation.execute(GitPushOperation.java:137)
    at git4idea.push.GitPusher.pushAndNotify(GitPusher.java:68)
    at git4idea.push.GitPusher.push(GitPusher.java:64)
    at com.intellij.dvcs.push.PushController.doPushSynchronously(PushController.java:463)
    at com.intellij.dvcs.push.PushController.push(PushController.java:453)
    at com.intellij.dvcs.push.ui.VcsPushDialog$2.run(VcsPushDialog.java:243)
    at com.intellij.openapi.progress.impl.CoreProgressManager$TaskRunnable.run(CoreProgressManager.java:962)
    at com.intellij.openapi.progress.impl.CoreProgressManager.lambda$runProcessWithProgressAsync$5(CoreProgressManager.java:472)
    at com.intellij.openapi.progress.impl.ProgressRunner.lambda$submit$3(ProgressRunner.java:235)
    at com.intellij.openapi.progress.impl.CoreProgressManager.lambda$runProcess$2(CoreProgressManager.java:178)
    at com.intellij.openapi.progress.impl.CoreProgressManager.registerIndicatorAndRun(CoreProgressManager.java:658)
    at com.intellij.openapi.progress.impl.CoreProgressManager.executeProcessUnderProgress(CoreProgressManager.java:610)
    at com.intellij.openapi.progress.impl.ProgressManagerImpl.executeProcessUnderProgress(ProgressManagerImpl.java:65)
    at com.intellij.openapi.progress.impl.CoreProgressManager.runProcess(CoreProgressManager.java:165)
    at com.intellij.openapi.progress.impl.ProgressRunner.lambda$submit$4(ProgressRunner.java:235)
    at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1700)
    at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
    at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
    at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1$1.run(Executors.java:668)
    at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1$1.run(Executors.java:665)
    at java.base/java.security.AccessController.doPrivileged(Native Method)
    at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1.run(Executors.java:665)
    at java.base/java.lang.Thread.run(Thread.java:834)
2022-05-24 20:40:07,113 [ 453728]  ERROR - intellij.openapi.progress.Task - IntelliJ IDEA 2020.3.1  Build #IU-203.6682.168 
2022-05-24 20:40:07,116 [ 453731]  ERROR - intellij.openapi.progress.Task - JDK: 11; VM: OpenJDK 64-Bit Server VM; Vendor: Oracle Corporation 
2022-05-24 20:40:07,116 [ 453731]  ERROR - intellij.openapi.progress.Task - OS: Windows 10 
2022-05-24 20:40:07,117 [ 453732]  ERROR - intellij.openapi.progress.Task - Last Action: CheckinProject 
2022-05-24 20:40:07,555 [ 454170]   WARN - arketplace.MarketplaceRequests - Can not get JetBrains plugins' IDs from Marketplace:Received fatal alert: handshake_failure 

>why my program is error

Hard to tell without any relevant source code, but likely an incorrectly registered GitAuthenticationListener.