Split behavior of rendering allBranchesLogCmd and switching to next cmd (#4574)

- **PR Description**

This is a recreation of
https://github.com/jesseduffield/lazygit/pull/4556.

Compared to that PR description, this has actually solved the problem
that repeated attempts to `1` `a` when `gui.statusPanelView: dashboard`.
Now we only rotate logs on the 2nd `a` press. While this does differ
from current behavior, I believe it is better, and I have more details
in my commit description.

Fixes https://github.com/jesseduffield/lazygit/issues/4469

pkg/commands/git_commands/branch.go

@@ -255,18 +255,24 @@ func (self *BranchCommands) Merge(branchName string, opts MergeOpts) error {
 	return self.cmd.New(cmdArgs).Run()
 }
 
-func (self *BranchCommands) AllBranchesLogCmdObj() *oscommands.CmdObj {
-	// Only choose between non-empty, non-identical commands
-	candidates := lo.Uniq(lo.WithoutEmpty(self.UserConfig().Git.AllBranchesLogCmds))
+// Only choose between non-empty, non-identical commands
+func (self *BranchCommands) allBranchesLogCandidates() []string {
+	return lo.Uniq(lo.WithoutEmpty(self.UserConfig().Git.AllBranchesLogCmds))
+}
 
-	n := len(candidates)
+func (self *BranchCommands) AllBranchesLogCmdObj() *oscommands.CmdObj {
+	candidates := self.allBranchesLogCandidates()
 
 	i := self.allBranchesLogCmdIndex
-	self.allBranchesLogCmdIndex = uint8((int(i) + 1) % n)
-
 	return self.cmd.New(str.ToArgv(candidates[i])).DontLog()
 }
 
+func (self *BranchCommands) RotateAllBranchesLogIdx() {
+	n := len(self.allBranchesLogCandidates())
+	i := self.allBranchesLogCmdIndex
+	self.allBranchesLogCmdIndex = uint8((int(i) + 1) % n)
+}
+
 func (self *BranchCommands) IsBranchMerged(branch *models.Branch, mainBranches *MainBranches) (bool, error) {
 	branchesToCheckAgainst := []string{"HEAD"}
 	if branch.RemoteBranchStoredLocally() {

pkg/gui/controllers/status_controller.go

@@ -60,7 +60,7 @@ func (self *StatusController) GetKeybindings(opts types.KeybindingsOpts) []*type
 		},
 		{
 			Key:         opts.GetKey(opts.Config.Status.AllBranchesLogGraph),
-			Handler:     func() error { self.showAllBranchLogs(); return nil },
+			Handler:     func() error { self.switchToOrRotateAllBranchesLogs(); return nil },
 			Description: self.c.Tr.AllBranchesLogGraph,
 		},
 	}
@@ -190,6 +190,18 @@ func (self *StatusController) showAllBranchLogs() {
 	})
 }
 
+// Switches to the all branches view, or, if already on that view,
+// rotates to the next command in the list, and then renders it.
+func (self *StatusController) switchToOrRotateAllBranchesLogs() {
+	// A bit of a hack to ensure we only rotate to the next branch log command
+	// if we currently are looking at a branch log. Otherwise, we should just show
+	// the current index (if we are coming from the dashboard).
+	if self.c.Views().Main.Title == self.c.Tr.LogTitle {
+		self.c.Git().Branch.RotateAllBranchesLogIdx()
+	}
+	self.showAllBranchLogs()
+}
+
 func (self *StatusController) showDashboard() {
 	versionStr := "master"
 	version, err := types.ParseVersionNumber(self.c.GetConfig().GetVersion())

pkg/integration/tests/status/log_cmd_status_panel_all_branches_log.go

@@ -0,0 +1,38 @@
+package status
+
+import (
+	"github.com/jesseduffield/lazygit/pkg/config"
+	. "github.com/jesseduffield/lazygit/pkg/integration/components"
+)
+
+var LogCmdStatusPanelAllBranchesLog = NewIntegrationTest(NewIntegrationTestArgs{
+	Description:  "Cycle between two different log commands in the Status view when it has status panel AllBranchesLog",
+	ExtraCmdArgs: []string{},
+	Skip:         false,
+	SetupConfig: func(config *config.AppConfig) {
+		config.GetUserConfig().Git.AllBranchesLogCmds = []string{`echo "view1"`, `echo "view2"`}
+		config.GetUserConfig().Gui.StatusPanelView = "allBranchesLog"
+	},
+	SetupRepo: func(shell *Shell) {},
+	Run: func(t *TestDriver, keys config.KeybindingConfig) {
+		t.Views().Status().
+			Focus()
+		t.Views().Main().Content(Contains("view1"))
+
+		// We head to the branches view and return
+		t.Views().Branches().
+			Focus()
+		t.Views().Status().
+			Focus()
+
+		t.Views().Main().Content(Contains("view1").DoesNotContain("view2"))
+
+		t.Views().Status().
+			Press(keys.Status.AllBranchesLogGraph)
+		t.Views().Main().Content(Contains("view2").DoesNotContain("view1"))
+
+		t.Views().Status().
+			Press(keys.Status.AllBranchesLogGraph)
+		t.Views().Main().Content(Contains("view1").DoesNotContain("view2"))
+	},
+})

pkg/integration/tests/test_list.go

@@ -360,6 +360,7 @@ var tests = []*components.IntegrationTest{
 	status.ClickToFocus,
 	status.ClickWorkingTreeStateToOpenRebaseOptionsMenu,
 	status.LogCmd,
+	status.LogCmdStatusPanelAllBranchesLog,
 	status.ShowDivergenceFromBaseBranch,
 	submodule.Add,
 	submodule.Enter,