[git] IJPL-73967 Disable the Checkout and Update action when there is no tracked branch while keeping it visible

To be consistent with the Update action. Previously it was not visible in that case.

GitOrigin-RevId: 4b05d8683369907e92be31455538d5cbd9b355ea

plugins/git4idea/shared/src/com/intellij/vcs/git/actions/branch/GitCheckoutWithUpdateAction.kt

@@ -12,6 +12,7 @@ import com.intellij.vcs.git.branch.popup.GitBranchesPopupKeys
 import com.intellij.vcs.git.repo.GitRepositoryModel
 import com.intellij.vcs.git.rpc.GitOperationsApi
 import git4idea.GitStandardLocalBranch
+import git4idea.i18n.GitBundle
 import org.jetbrains.annotations.ApiStatus
 
 @ApiStatus.Internal
@@ -19,11 +20,24 @@ class GitCheckoutWithUpdateAction : GitBranchActionToBeWrapped, DumbAwareAction(
   override fun getActionUpdateThread(): ActionUpdateThread = ActionUpdateThread.BGT
 
   override fun update(e: AnActionEvent) {
-    e.presentation.isEnabledAndVisible = ActionData.create(e) != null
+    val data = ActionData.create(e)
+    with(e.presentation) {
+      if (data == null) {
+        isEnabledAndVisible = false
+        return
+      }
+      isEnabledAndVisible = true
+      isEnabled = data.hasTrackingInfos
+      if (!data.hasTrackingInfos) {
+        description = GitBundle.message("branches.tracking.branch.doesn.t.configured.for.s",
+                                        "'${data.branch.name}'")
+      }
+    }
   }
 
   override fun actionPerformed(e: AnActionEvent) {
     val data = ActionData.create(e) ?: return
+    if (!data.hasTrackingInfos) return
     val repositoryIds = data.repositories.map { it.repositoryId }
 
     GitOperationsApi.launchRequest(data.project) {
@@ -35,6 +49,7 @@ class GitCheckoutWithUpdateAction : GitBranchActionToBeWrapped, DumbAwareAction(
     val project: Project,
     val branch: GitStandardLocalBranch,
     val repositories: List<GitRepositoryModel>,
+    val hasTrackingInfos: Boolean,
   ) {
     companion object {
       fun create(e: AnActionEvent): ActionData? {
@@ -47,8 +62,7 @@ class GitCheckoutWithUpdateAction : GitBranchActionToBeWrapped, DumbAwareAction(
         return when {
           !hasRemotes(repositories) -> null
           isAlreadyCheckedOut(repositories, branch) -> null
-          !hasTrackingInfos(repositories, branch) -> null
-          else -> ActionData(project, branch, repositories)
+          else -> ActionData(project, branch, repositories, hasTrackingInfos = hasTrackingInfos(repositories, branch))
         }
       }