[git] IJPL-73913 Suggest stashing/shelving changes and retry cherry-pick

GitOrigin-RevId: d73345928d536ddfe9f22666b4f2dd3272263c31

platform/vcs-tests/src/com/intellij/vcs/test/VcsPlatformTest.kt

@@ -199,8 +199,8 @@ abstract class VcsPlatformTest : HeavyPlatformTestCase() {
     return assertHasNotification(NotificationType.WARNING, title, message, vcsNotifier.notifications)
   }
 
-  protected fun assertErrorNotification(title: String, message: String): Notification {
-    return assertHasNotification(NotificationType.ERROR, title, message, vcsNotifier.notifications)
+  protected fun assertErrorNotification(title: String, message: String, actions: List<String>? = null): Notification {
+    return assertHasNotification(NotificationType.ERROR, title, message, actions, vcsNotifier.notifications)
   }
 
   protected fun assertNoNotification() {

plugins/git4idea/resources/messages/GitBundle.properties

@@ -30,6 +30,9 @@ apply.changes.operation.canceled={0} canceled
 apply.changes.operation.failed={0} failed
 apply.changes.operation.performed.with.conflicts={0} was performed with conflicts
 apply.changes.operation.successful.for.commits=However, {0} succeeded for the following {1,choice,1#commit|2#commits}:
+apply.changes.restore.notification.description=Local changes were saved before {0}
+apply.changes.restore.notification.title=Restore local changes
+apply.changes.save.and.retry.operation={0} Changes and Retry
 apply.changes.skipped={0} {1,choice,1#was|2#were} skipped, because all changes have already been {2}.
 apply.changes.everything.applied=All changes from {0} have already been {1}
 

plugins/git4idea/src/git4idea/GitApplyChangesProcess.kt

@@ -8,6 +8,7 @@ import com.intellij.history.LocalHistory
 import com.intellij.openapi.application.ApplicationManager
 import com.intellij.openapi.application.ModalityState
 import com.intellij.openapi.application.runInEdt
+import com.intellij.openapi.components.service
 import com.intellij.openapi.diagnostic.logger
 import com.intellij.openapi.project.Project
 import com.intellij.openapi.util.NlsContexts
@@ -15,7 +16,9 @@ import com.intellij.openapi.util.NlsSafe
 import com.intellij.openapi.util.text.StringUtil
 import com.intellij.openapi.vcs.AbstractVcsHelper
 import com.intellij.openapi.vcs.VcsApplicationSettings
+import com.intellij.openapi.vcs.VcsBundle
 import com.intellij.openapi.vcs.VcsException
+import com.intellij.openapi.vcs.VcsNotificationIdsHolder
 import com.intellij.openapi.vcs.VcsNotifier
 import com.intellij.openapi.vcs.changes.*
 import com.intellij.openapi.vcs.update.RefreshVFsSynchronously
@@ -27,6 +30,8 @@ import com.intellij.xml.util.XmlStringUtil.wrapInHtml
 import com.intellij.xml.util.XmlStringUtil.wrapInHtmlTag
 import git4idea.GitUtil.refreshChangedVfs
 import git4idea.actions.GitAbortOperationAction
+import git4idea.applyChanges.GitApplyChangesLocalChangesDetectedNotification
+import git4idea.applyChanges.GitApplyChangesNotificationsHandler
 import git4idea.changes.GitChangeUtils.getStagedChanges
 import git4idea.cherrypick.GitLocalChangesConflictDetector
 import git4idea.commands.GitCommandResult
@@ -34,7 +39,6 @@ import git4idea.commands.GitLineHandlerListener
 import git4idea.commands.GitSimpleEventDetector
 import git4idea.commands.GitSimpleEventDetector.Event.CHERRY_PICK_CONFLICT
 import git4idea.commands.GitUntrackedFilesOverwrittenByOperationDetector
-import git4idea.config.GitVcsSettings
 import git4idea.i18n.GitBundle
 import git4idea.index.isStagingAreaAvailable
 import git4idea.index.showStagingArea
@@ -42,6 +46,7 @@ import git4idea.merge.GitConflictResolver
 import git4idea.merge.GitDefaultMergeDialogCustomizer
 import git4idea.repo.GitRepository
 import git4idea.repo.GitRepositoryManager
+import git4idea.stash.GitChangesSaver
 import git4idea.util.GitUntrackedFilesHelper
 import org.jetbrains.annotations.Nls
 import org.jetbrains.annotations.NonNls
@@ -69,6 +74,7 @@ internal abstract class GitApplyChangesProcess(
   private val vcsNotifier = VcsNotifier.getInstance(project)
   private val changeListManager = ChangeListManagerEx.getInstanceEx(project)
   private val vcsHelper = AbstractVcsHelper.getInstance(project)
+  private val notificationsHandler = project.service<GitApplyChangesNotificationsHandler>()
   protected val autoCommit = forceAutoCommit || !changeListManager.areChangeListsEnabled()
 
   protected abstract fun isEmptyCommit(result: GitCommandResult): Boolean
@@ -84,6 +90,11 @@ internal abstract class GitApplyChangesProcess(
   ): GitCommandResult
 
   fun execute() {
+    notificationsHandler.beforeApply()
+    execute(null, commits)
+  }
+
+  private fun execute(changesSaver: GitChangesSaver?, commits: List<VcsCommitMetadata>) {
     // ensure there are no stall changes (ex: from recent commit) that prevent changes from being moved into temp changelist
     if (changeListManager.areChangeListsEnabled()) {
       changeListManager.waitForUpdate()
@@ -92,30 +103,44 @@ internal abstract class GitApplyChangesProcess(
     val commitsInRoots = DvcsUtil.groupCommitsByRoots(repositoryManager, commits)
     LOG.info("${operationName}ing commits: " + toString(commitsInRoots))
 
+    if (changesSaver != null) {
+      if (!trySaveChanges(commitsInRoots.map { (repo, _) -> repo.root }, changesSaver)) {
+        return
+      }
+    }
+
     val successfulCommits = mutableListOf<VcsCommitMetadata>()
     val skippedCommits = mutableListOf<VcsCommitMetadata>()
 
     for ((repository, repoCommits) in commitsInRoots) {
-      val success = executeForRepository(repository, repoCommits, successfulCommits, skippedCommits)
-      if (!success) return
+      try {
+        for (commit in repoCommits) {
+          if (!executeForCommit(repository, commit, successfulCommits, skippedCommits)) {
+            notificationsHandler.operationFailed(operationName, repository, changesSaver)
+            return
+          }
+        }
+      }
+      finally {
+        repository.update()
+      }
     }
+
     notifyResult(successfulCommits, skippedCommits)
+    if (changesSaver != null) {
+      LOG.info("Restoring saved changes after successful $operationName")
+      changesSaver.load()
+    }
   }
 
-  private fun executeForRepository(repository: GitRepository,
-                                   repoCommits: List<VcsCommitMetadata>,
-                                   successfulCommits: MutableList<VcsCommitMetadata>,
-                                   skippedCommits: MutableList<VcsCommitMetadata>): Boolean {
-    try {
-      for (commit in repoCommits) {
-        val success = executeForCommit(repository, commit, successfulCommits, skippedCommits)
-        if (!success) return false
-      }
-      return true
-    }
-    finally {
-      repository.update()
-    }
+  fun trySaveChanges(roots: List<VirtualFile>, changesSaver: GitChangesSaver): Boolean {
+    val errorMessage = changesSaver.saveLocalChangesOrError(roots) ?: return true
+
+    VcsNotifier.getInstance(project)
+      .notifyError(VcsNotificationIdsHolder.UNCOMMITTED_CHANGES_SAVING_ERROR,
+                   VcsBundle.message("notification.title.couldn.t.save.uncommitted.changes"),
+                   errorMessage)
+    return false
   }
 
   /**
@@ -195,9 +220,7 @@ internal abstract class GitApplyChangesProcess(
         return false
       }
       else if (localChangesOverwrittenDetector.isDetected) {
-        val savingStrategy = GitVcsSettings.getInstance(project).saveChangesPolicy
-        val message = GitBundle.message("warning.your.local.changes.would.be.overwritten.by", operationName, savingStrategy.text.lowercase())
-        notifyError(message, commit, successfulCommits)
+        handleLocalChangesDetected(repository, commit.takeIf { localChangesOverwrittenDetector.byMerge }, successfulCommits, alreadyPicked)
         return false
       }
       else if (isEmptyCommit(result)) {
@@ -215,6 +238,23 @@ internal abstract class GitApplyChangesProcess(
     }
   }
 
+  private fun handleLocalChangesDetected(
+    repository: GitRepository,
+    failedOnCommit: VcsCommitMetadata?,
+    successfulCommits: MutableList<VcsCommitMetadata>,
+    alreadyPicked: MutableList<VcsCommitMetadata>,
+  ) {
+    val notification = GitApplyChangesLocalChangesDetectedNotification(operationName, failedOnCommit, successfulCommits, repository) { saver ->
+      val alreadyPickedSet = buildSet {
+        addAll(alreadyPicked)
+        addAll(successfulCommits)
+      }
+      LOG.info("Re-trying $operationName, skipping ${alreadyPickedSet.size} already processed commits")
+      execute(saver, commits.filter { commit -> !alreadyPickedSet.contains(commit) })
+    }
+    vcsNotifier.notify(notification)
+  }
+
   private abstract class CommitStrategy {
     open fun start() = Unit
     open fun finish() = Unit
@@ -455,16 +495,8 @@ internal abstract class GitApplyChangesProcess(
   }
 
   @Nls
-  private fun getSuccessfulCommitDetailsIfAny(successfulCommits: List<VcsCommitMetadata>): String {
-    var description = ""
-    if (successfulCommits.isNotEmpty()) {
-      description += UIUtil.HR +
-                     GitBundle.message("apply.changes.operation.successful.for.commits", operationName, successfulCommits.size) +
-                     UIUtil.BR
-      description += getCommitsDetails(successfulCommits)
-    }
-    return description
-  }
+  private fun getSuccessfulCommitDetailsIfAny(successfulCommits: List<VcsCommitMetadata>) =
+    getSuccessfulCommitDetailsIfAny(successfulCommits, operationName)
 
   @Nls
   private fun formSkippedDescription(skipped: List<VcsCommitMetadata>, but: Boolean): String {
@@ -475,21 +507,6 @@ internal abstract class GitApplyChangesProcess(
     return GitBundle.message("apply.changes.everything.applied", hashes, appliedWord)
   }
 
-  @NlsSafe
-  private fun getCommitsDetails(successfulCommits: List<VcsCommitMetadata>): String {
-    var description = ""
-    for (commit in successfulCommits) {
-      if (description.isNotEmpty()) description += UIUtil.BR
-      description += commitDetails(commit)
-    }
-    return description
-  }
-
-  @NlsSafe
-  private fun commitDetails(commit: VcsCommitMetadata): String {
-    return commit.id.toShortString() + " " + StringUtil.escapeXmlEntities(commit.subject)
-  }
-
   private fun toString(commitsInRoots: Map<GitRepository, List<VcsCommitMetadata>>): String {
     return commitsInRoots.entries.joinToString("; ") { entry ->
       val commits = entry.value.joinToString { it.id.asString() }
@@ -510,8 +527,35 @@ internal abstract class GitApplyChangesProcess(
     }
   }
 
-  companion object {
+  internal companion object {
     private val LOG = logger<GitApplyChangesProcess>()
+
+    @NlsSafe
+    fun commitDetails(commit: VcsCommitMetadata): String {
+      return commit.id.toShortString() + " " + StringUtil.escapeXmlEntities(commit.subject)
+    }
+
+    @Nls
+    fun getSuccessfulCommitDetailsIfAny(successfulCommits: List<VcsCommitMetadata>, operationName: String): String {
+      var description = ""
+      if (successfulCommits.isNotEmpty()) {
+        description += UIUtil.HR +
+                       GitBundle.message("apply.changes.operation.successful.for.commits", operationName, successfulCommits.size) +
+                       UIUtil.BR
+        description += getCommitsDetails(successfulCommits)
+      }
+      return description
+    }
+
+    @NlsSafe
+    private fun getCommitsDetails(successfulCommits: List<VcsCommitMetadata>): String {
+      var description = ""
+      for (commit in successfulCommits) {
+        if (description.isNotEmpty()) description += UIUtil.BR
+        description += commitDetails(commit)
+      }
+      return description
+    }
   }
 }
 

plugins/git4idea/src/git4idea/GitNotificationIdsHolder.kt

@@ -9,6 +9,7 @@ class GitNotificationIdsHolder : NotificationIdsHolder {
       APPLY_CHANGES_SUCCESS,
       APPLY_CHANGES_CONFLICTS,
       APPLY_CHANGES_ERROR,
+      APPLY_CHANGES_LOCAL_CHANGES_DETECTED,
       BRANCH_UPDATE_FORCE_PUSHED_BRANCH_NOT_ALL_CHERRY_PICKED,
       BRANCH_UPDATE_FORCE_PUSHED_BRANCH_SUCCESS,
       BRANCH_CHECKOUT_FAILED,
@@ -123,6 +124,7 @@ class GitNotificationIdsHolder : NotificationIdsHolder {
     const val APPLY_CHANGES_SUCCESS = "git.apply.changes.success"
     const val APPLY_CHANGES_CONFLICTS = "git.apply.changes.conflicts"
     const val APPLY_CHANGES_ERROR = "git.apply.changes.error"
+    const val APPLY_CHANGES_LOCAL_CHANGES_DETECTED = "git.apply.changes.local.changes.detected"
     const val BRANCH_UPDATE_FORCE_PUSHED_BRANCH_NOT_ALL_CHERRY_PICKED = "git.update.force.pushed.branch.not.all.cherry.picked"
     const val BRANCH_UPDATE_FORCE_PUSHED_BRANCH_SUCCESS = "git.update.force.pushed.branch.success"
     const val BRANCH_CHECKOUT_FAILED = "git.branch.checkout.failed"

plugins/git4idea/src/git4idea/GitRestoreSavedChangesNotificationAction.kt

@@ -0,0 +1,19 @@
+// Copyright 2000-2024 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license.
+package git4idea
+
+import com.intellij.notification.Notification
+import com.intellij.notification.NotificationAction
+import com.intellij.openapi.actionSystem.AnActionEvent
+import git4idea.i18n.GitBundle
+import git4idea.stash.GitChangesSaver
+
+internal class GitRestoreSavedChangesNotificationAction(private val saver: GitChangesSaver) : NotificationAction(
+  saver.saveMethod.selectBundleMessage(
+    GitBundle.message("rebase.notification.action.view.stash.text"),
+    GitBundle.message("rebase.notification.action.view.shelf.text")
+  )
+) {
+  override fun actionPerformed(e: AnActionEvent, notification: Notification) {
+    saver.showSavedChanges()
+  }
+}

plugins/git4idea/src/git4idea/applyChanges/GitApplyChangesCanRestoreNotification.kt

@@ -0,0 +1,44 @@
+// Copyright 2000-2024 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license.
+package git4idea.applyChanges
+
+import com.intellij.notification.NotificationAction
+import com.intellij.notification.NotificationType
+import com.intellij.openapi.project.Project
+import com.intellij.openapi.vcs.VcsBundle
+import com.intellij.openapi.vcs.VcsNotifier
+import com.intellij.platform.ide.progress.withBackgroundProgress
+import git4idea.GitApplyChangesNotification
+import git4idea.GitDisposable
+import git4idea.GitRestoreSavedChangesNotificationAction
+import git4idea.i18n.GitBundle
+import git4idea.stash.GitChangesSaver
+import kotlinx.coroutines.launch
+import org.jetbrains.annotations.Nls
+
+internal class GitApplyChangesCanRestoreNotification(
+  project: Project,
+  changesSaver: GitChangesSaver,
+  operationName: @Nls String,
+) : GitApplyChangesNotification(
+  VcsNotifier.importantNotification().displayId,
+  GitBundle.message("apply.changes.restore.notification.title"),
+  GitBundle.message("apply.changes.restore.notification.description", operationName),
+  NotificationType.INFORMATION,
+) {
+  init {
+    addAction(GitRestoreSavedChangesNotificationAction(changesSaver))
+    addAction(NotificationAction.createExpiring(changesSaver.saveMethod.selectBundleMessage(
+      GitBundle.message("unstash.title"),
+      VcsBundle.message("unshelve.changes.action")
+    )) { _, _ ->
+      GitDisposable.getInstance(project).coroutineScope.launch {
+        withBackgroundProgress(project, changesSaver.saveMethod.selectBundleMessage(
+          GitBundle.message("unstash.unstashing"),
+          VcsBundle.message("unshelve.changes.progress.title")
+        )) {
+          changesSaver.load()
+        }
+      }
+    })
+  }
+}

plugins/git4idea/src/git4idea/applyChanges/GitApplyChangesLocalChangesDetectedNotification.kt

@@ -0,0 +1,112 @@
+// Copyright 2000-2024 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license.
+package git4idea.applyChanges
+
+import com.intellij.ide.IdeBundle
+import com.intellij.notification.NotificationAction
+import com.intellij.notification.NotificationType
+import com.intellij.openapi.progress.EmptyProgressIndicator
+import com.intellij.openapi.project.Project
+import com.intellij.openapi.util.text.StringUtil
+import com.intellij.openapi.vcs.FilePath
+import com.intellij.openapi.vcs.VcsBundle
+import com.intellij.openapi.vcs.VcsNotificationIdsHolder
+import com.intellij.openapi.vcs.VcsNotifier
+import com.intellij.platform.ide.progress.withBackgroundProgress
+import com.intellij.util.ui.UIUtil
+import com.intellij.vcs.log.VcsCommitMetadata
+import git4idea.GitApplyChangesNotification
+import git4idea.GitApplyChangesProcess
+import git4idea.GitDisposable
+import git4idea.GitNotificationIdsHolder
+import git4idea.GitUtil
+import git4idea.commands.Git
+import git4idea.config.GitSaveChangesPolicy
+import git4idea.config.GitVcsApplicationSettings
+import git4idea.config.GitVcsSettings
+import git4idea.i18n.GitBundle
+import git4idea.repo.GitRepository
+import git4idea.stash.GitChangesSaver
+import git4idea.util.LocalChangesWouldBeOverwrittenHelper
+import kotlinx.coroutines.launch
+import org.jetbrains.annotations.Nls
+
+internal class GitApplyChangesLocalChangesDetectedNotification(
+  operationName: @Nls String,
+  failedOnCommit: VcsCommitMetadata?,
+  successfulCommits: List<VcsCommitMetadata>,
+  repository: GitRepository,
+  retryAction: (GitChangesSaver) -> Unit,
+) : GitApplyChangesNotification(
+  VcsNotifier.importantNotification().displayId,
+  GitBundle.message("apply.changes.operation.failed", operationName.capitalize()),
+  getDescription(operationName, repository, failedOnCommit, successfulCommits),
+  NotificationType.ERROR,
+) {
+  init {
+    val project = repository.project
+    val affectedPaths = repository.getStagingAreaHolder().allRecords.map { it.path }
+    val localChanges =
+      GitUtil.findLocalChangesForPaths(project, repository.getRoot(), affectedPaths.map(FilePath::getPath), false)
+
+    setDisplayId(GitNotificationIdsHolder.Companion.APPLY_CHANGES_LOCAL_CHANGES_DETECTED)
+
+    addAction(NotificationAction.createSimple(IdeBundle.messagePointer("action.show.files")) {
+      LocalChangesWouldBeOverwrittenHelper.showErrorDialog(
+        project,
+        operationName,
+        null,
+        localChanges,
+        affectedPaths.map { it.path }
+      )
+    })
+
+    if (localChanges.isNotEmpty()) {
+      addAction(saveAndRetryAction(repository, operationName, retryAction))
+    }
+  }
+
+  private fun saveAndRetryAction(
+    repository: GitRepository,
+    operationName: @Nls String,
+    retryAction: (GitChangesSaver) -> Unit,
+  ): NotificationAction {
+    val savingStrategy = getSavingStrategy(repository.project)
+    val actionText = GitBundle.message("apply.changes.save.and.retry.operation", savingStrategy.text)
+    return NotificationAction.createExpiring(actionText) { _, _ ->
+      GitDisposable.getInstance(repository.project).coroutineScope.launch {
+        withBackgroundProgress(repository.project, savingStrategy.selectBundleMessage(
+          GitBundle.message("stashing.progress.title"),
+          VcsBundle.message("shelve.changes.progress.text")
+        )) {
+          val changesSaver = GitChangesSaver.getSaver(repository.project, Git.getInstance(), EmptyProgressIndicator(),
+                                                      VcsBundle.message("stash.changes.message", operationName), savingStrategy)
+          retryAction(changesSaver)
+        }
+      }
+    }
+  }
+
+  private companion object {
+    fun getSavingStrategy(project: Project) =
+      if (GitVcsApplicationSettings.getInstance().isStagingAreaEnabled) GitSaveChangesPolicy.STASH
+      else GitVcsSettings.getInstance(project).saveChangesPolicy
+
+
+    fun getDescription(
+      operationName: @Nls String,
+      repository: GitRepository,
+      failedOnCommit: VcsCommitMetadata?,
+      successfulCommits: List<VcsCommitMetadata>,
+    ): @Nls String {
+      var description = if (failedOnCommit != null) {
+        GitApplyChangesProcess.commitDetails(failedOnCommit) + UIUtil.BR
+      }
+      else ""
+
+      description += GitBundle.message("warning.your.local.changes.would.be.overwritten.by", operationName,
+                                       StringUtil.toLowerCase(getSavingStrategy(repository.project).text))
+      description += GitApplyChangesProcess.getSuccessfulCommitDetailsIfAny(successfulCommits, operationName)
+      return description
+    }
+  }
+}

plugins/git4idea/src/git4idea/applyChanges/GitApplyChangesNotificationsHandler.kt

@@ -0,0 +1,80 @@
+// Copyright 2000-2024 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license.
+package git4idea.applyChanges
+
+import com.intellij.dvcs.repo.Repository
+import com.intellij.openapi.components.Service
+import com.intellij.openapi.diagnostic.thisLogger
+import com.intellij.openapi.project.Project
+import com.intellij.openapi.vcs.VcsNotifier
+import git4idea.GitApplyChangesNotification
+import git4idea.GitDisposable
+import git4idea.repo.GitRepository
+import git4idea.repo.GitRepositoryChangeListener
+import git4idea.stash.GitChangesSaver
+import org.jetbrains.annotations.Nls
+import java.util.concurrent.atomic.AtomicBoolean
+import java.util.concurrent.atomic.AtomicReference
+
+/**
+ * Helper class for hiding or showing notifications related to applying changes
+ * when [git4idea.GitApplyChangesProcess.execute] is already finished
+ */
+@Service(Service.Level.PROJECT)
+internal class GitApplyChangesNotificationsHandler(private val project: Project) {
+  private var shouldHideNotifications = AtomicBoolean()
+  private var changesSaverAndOperation = AtomicReference<Pair<GitChangesSaver, @Nls String>?>()
+
+  init {
+    project.messageBus.connect(GitDisposable.Companion.getInstance(project))
+      .subscribe(GitRepository.GIT_REPO_CHANGE, GitRepositoryChangeListener {
+        if (!isCherryPickingOrReverting(it)) {
+          if (shouldHideNotifications.compareAndSet(true, false)) {
+            LOG.debug("Hiding notifications")
+            GitApplyChangesNotification.Companion.expireAll<GitApplyChangesNotification.ExpireAfterRepoStateChanged>(project)
+          }
+
+          changesSaverAndOperation.getAndSet(null)?.let { (changesSaver, operation) ->
+            LOG.debug("Suggesting to restore saved changes after $operation")
+            showRestoreChangesNotification(changesSaver, operation)
+          }
+        }
+      })
+  }
+
+  fun beforeApply() {
+    shouldHideNotifications.set(false)
+    changesSaverAndOperation.set(null)
+  }
+
+  fun operationFailed(operationName: @Nls String, repository: GitRepository, changesSaver: GitChangesSaver?) {
+    val cherryPickingOrReverting = isCherryPickingOrReverting(repository)
+    if (cherryPickingOrReverting) {
+      shouldHideNotifications.set(true)
+    }
+
+    if (changesSaver != null) {
+      if (cherryPickingOrReverting) {
+        changesSaverAndOperation.set(changesSaver to operationName)
+      }
+      else {
+        showRestoreChangesNotification(changesSaver, operationName)
+      }
+    }
+  }
+
+  private fun showRestoreChangesNotification(changesSaver: GitChangesSaver, operation: @Nls String) {
+    VcsNotifier.getInstance(project).notify(
+      GitApplyChangesCanRestoreNotification(project, changesSaver, operation)
+    )
+  }
+
+  private fun isCherryPickingOrReverting(repository: GitRepository): Boolean =
+    repository.state == Repository.State.GRAFTING || repository.state == Repository.State.REVERTING
+
+  internal companion object {
+    private val LOG = thisLogger()
+
+    fun getInstance(project: Project): GitApplyChangesNotificationsHandler =
+      project.getService(GitApplyChangesNotificationsHandler::class.java)
+  }
+}

plugins/git4idea/src/git4idea/cherrypick/CherryPickProcess.kt

@@ -2,7 +2,6 @@
 package git4idea.cherrypick
 
 import com.intellij.dvcs.ui.DvcsBundle
-import com.intellij.openapi.components.service
 import com.intellij.openapi.diagnostic.thisLogger
 import com.intellij.openapi.progress.ProgressIndicator
 import com.intellij.openapi.project.Project
@@ -43,10 +42,6 @@ internal class GitCherryPickProcess(
 
   fun isSuccess() = successfullyCherryPickedCount == totalCommitsToCherryPick
 
-  init {
-    project.service<GitCherryPickNotificationsHandler>()
-  }
-
   override fun isEmptyCommit(result: GitCommandResult): Boolean {
     val stdout = result.outputAsJoinedString
     val stderr = result.errorOutputAsJoinedString

plugins/git4idea/src/git4idea/cherrypick/GitCherryPickNotificationsHandler.kt

@@ -1,29 +0,0 @@
-// Copyright 2000-2024 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license.
-package git4idea.cherrypick
-
-import com.intellij.dvcs.repo.Repository
-import com.intellij.openapi.components.Service
-import com.intellij.openapi.project.Project
-import git4idea.GitApplyChangesNotification
-import git4idea.GitApplyChangesNotification.ExpireAfterRepoStateChanged
-import git4idea.GitDisposable
-import git4idea.repo.GitRepository
-import git4idea.repo.GitRepositoryChangeListener
-import java.util.concurrent.ConcurrentHashMap
-
-@Service(Service.Level.PROJECT)
-internal class GitCherryPickNotificationsHandler(project: Project) {
-  private val cherryPickingIn = ConcurrentHashMap.newKeySet<GitRepository>()
-
-  init {
-    project.messageBus.connect(GitDisposable.getInstance(project))
-      .subscribe(GitRepository.GIT_REPO_CHANGE, GitRepositoryChangeListener {
-        if (it.state == Repository.State.GRAFTING) {
-          cherryPickingIn.add(it)
-        }
-        else if (cherryPickingIn.remove(it)) {
-          GitApplyChangesNotification.expireAll<ExpireAfterRepoStateChanged>(project)
-        }
-      })
-  }
-}

plugins/git4idea/src/git4idea/rebase/GitRebaseProcess.java

@@ -30,10 +30,7 @@ import com.intellij.util.concurrency.annotations.RequiresBackgroundThread;
 import com.intellij.util.progress.StepsProgressIndicator;
 import com.intellij.vcs.log.Hash;
 import com.intellij.vcs.log.TimedVcsCommit;
-import git4idea.DialogManager;
-import git4idea.GitActivity;
-import git4idea.GitNotificationIdsHolder;
-import git4idea.GitProtectedBranchesKt;
+import git4idea.*;
 import git4idea.branch.GitRebaseParams;
 import git4idea.commands.*;
 import git4idea.config.GitSaveChangesPolicy;
@@ -106,13 +103,7 @@ public class GitRebaseProcess {
     myProgressManager = ProgressManager.getInstance();
     myDirtyScopeManager = VcsDirtyScopeManager.getInstance(myProject);
 
-    VIEW_STASH_ACTION = NotificationAction.createSimple(
-      mySaver.getSaveMethod().selectBundleMessage(
-        GitBundle.message("rebase.notification.action.view.stash.text"),
-        GitBundle.message("rebase.notification.action.view.shelf.text")
-      ),
-      () -> mySaver.showSavedChanges()
-    );
+    VIEW_STASH_ACTION = new GitRestoreSavedChangesNotificationAction(mySaver);
   }
 
   public void rebase() {

plugins/git4idea/src/git4idea/util/LocalChangesWouldBeOverwrittenHelper.java

@@ -30,22 +30,25 @@ public final class LocalChangesWouldBeOverwrittenHelper {
     final Collection<String> absolutePaths = GitUtil.toAbsolute(root, relativeFilePaths);
     final List<Change> changes = GitUtil.findLocalChangesForPaths(project, root, absolutePaths, false);
 
+    String description = getOverwrittenByMergeMessage();
     VcsNotifier.importantNotification()
       .createNotification(GitBundle.message("notification.title.git.operation.failed", StringUtil.capitalize(operationName)),
-                          GitBundle.message(getOverwrittenByMergeMessage()),
+                          description,
                           NotificationType.ERROR)
       .setDisplayId(displayId)
       .addAction(NotificationAction.createSimple(
         GitBundle.messagePointer("local.changes.would.be.overwritten.by.merge.view.them.action"), () -> {
-          showErrorDialog(project, operationName, changes, absolutePaths);
+          showErrorDialog(project, operationName, description, changes, absolutePaths);
         }))
       .notify(project);
   }
 
-  private static void showErrorDialog(@NotNull Project project, @NotNull String operationName, @NotNull List<? extends Change> changes,
-                                      @NotNull Collection<String> absolutePaths) {
+  public static void showErrorDialog(@NotNull Project project,
+                                     @NotNull String operationName,
+                                     @Nls String description,
+                                     @NotNull List<? extends Change> changes,
+                                     @NotNull Collection<String> absolutePaths) {
     String title = GitBundle.message("dialog.title.local.changes.prevent.from.operation", StringUtil.capitalize(operationName));
-    String description = GitBundle.message(getOverwrittenByMergeMessage());
     if (changes.isEmpty()) {
       GitUtil.showPathsInDialog(project, absolutePaths, title, description);
     }
@@ -53,7 +56,9 @@ public final class LocalChangesWouldBeOverwrittenHelper {
       ChangesBrowserWithRollback changesViewer = new ChangesBrowserWithRollback(project, changes);
 
       DialogBuilder builder = new DialogBuilder(project);
-      builder.setNorthPanel(new MultiLineLabel(description));
+      if (description != null) {
+        builder.setNorthPanel(new MultiLineLabel(description));
+      }
       builder.setCenterPanel(changesViewer);
       builder.addDisposable(changesViewer);
       builder.addOkAction();

plugins/git4idea/tests/git4idea/cherrypick/GitCherryPickAutoCommitTest.kt

@@ -1,6 +1,7 @@
 // Copyright 2000-2019 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package git4idea.cherrypick
 
+import com.intellij.ide.IdeBundle
 import git4idea.i18n.GitBundle
 import git4idea.test.*
 import org.junit.Test
@@ -194,4 +195,18 @@ class GitCherryPickAutoCommitTest(private val createChangelistAutomatically: Boo
       ${shortHash(commit3)} fix #2
       ${shortHash(emptyCommit)} was skipped, because all changes have already been applied.""")
   }
+
+  @Test
+  fun `staged changes prevent cherry-pick`() {
+    val commit = file("a.txt").create().addCommit("fix #1").hash()
+    file("b.txt").create().add()
+
+    cherryPick(commit, expectSuccess = false)
+
+    assertErrorNotification("Cherry-pick failed",
+                            GitBundle.message("warning.your.local.changes.would.be.overwritten.by", "cherry-pick", "shelve"),
+                            listOf(IdeBundle.message("action.show.files"),
+                                   GitBundle.message("apply.changes.save.and.retry.operation", "Shelve"))
+    )
+  }
 }

plugins/git4idea/tests/git4idea/cherrypick/GitCherryPickTest.kt

@@ -15,7 +15,10 @@
  */
 package git4idea.cherrypick
 
+import com.intellij.ide.IdeBundle
 import com.intellij.openapi.vcs.VcsApplicationSettings
+import com.intellij.util.ui.Html
+import com.intellij.util.ui.UIUtil
 import com.intellij.vcs.log.impl.HashImpl
 import git4idea.i18n.GitBundle
 import git4idea.test.*
@@ -38,9 +41,12 @@ abstract class GitCherryPickTest : GitSingleRepoTest() {
 
     cherryPick(commit, expectSuccess = false)
 
-    assertErrorNotification("Cherry-pick failed", """
-      ${shortHash(commit)} fix #1 
-      """ + GitBundle.message("warning.your.local.changes.would.be.overwritten.by", "cherry-pick", "shelve"))
+    assertErrorNotification("Cherry-pick failed",
+                            "${shortHash(commit)} fix #1" +
+                            UIUtil.BR +
+                            GitBundle.message("warning.your.local.changes.would.be.overwritten.by", "cherry-pick", "shelve"),
+                            listOf(IdeBundle.message("action.show.files"),
+                                   GitBundle.message("apply.changes.save.and.retry.operation", "Shelve")))
   }
 
   protected fun `check untracked file conflicting with commit`() {

plugins/git4idea/tests/git4idea/revert/GitRevertTest.kt

@@ -15,6 +15,7 @@
  */
 package git4idea.revert
 
+import com.intellij.ide.IdeBundle
 import com.intellij.openapi.vcs.VcsApplicationSettings
 import com.intellij.openapi.vcs.changes.Change
 import com.intellij.vcs.log.VcsFullCommitDetails
@@ -25,6 +26,7 @@ import git4idea.GitRevisionNumber
 import git4idea.history.GitHistoryUtils
 import git4idea.i18n.GitBundle
 import git4idea.test.*
+import org.junit.Test
 import java.nio.charset.Charset
 
 /**
@@ -259,6 +261,19 @@ class GitRevertTest : GitSingleRepoTest() {
     }
   }
 
+  fun `test staged changes prevent revert with auto-commit`() {
+    val commit = file("a.txt").create().addCommit("fix #1").details()
+    file("c.txt").create().add()
+
+    revertAutoCommit(commit)
+
+    assertErrorNotification("Revert failed",
+                            GitBundle.message("warning.your.local.changes.would.be.overwritten.by", "revert", "shelve"),
+                            listOf(IdeBundle.message("action.show.files"),
+                                   GitBundle.message("apply.changes.save.and.retry.operation", "Shelve"))
+    )
+  }
+
   private fun commitMessageForRevert(commit: VcsFullCommitDetails): String {
     return """
         Revert "${commit.subject}"