feat: add a menu to reset current branch to a target branch upstream

pkg/gui/controllers/branches_controller.go

@@ -140,9 +140,7 @@ func (self *BranchesController) GetOnRenderToMain() func() error {
 }
 
 func (self *BranchesController) setUpstream(selectedBranch *models.Branch) error {
-	return self.c.Menu(types.CreateMenuOptions{
+	options := []*types.MenuItem{
-		Title: self.c.Tr.BranchUpstreamOptionsTitle,
-		Items: []*types.MenuItem{
 		{
 			LabelColumns: []string{self.c.Tr.ViewDivergenceFromUpstream},
 			OnPress: func() error {
@@ -209,7 +207,51 @@ func (self *BranchesController) setUpstream(selectedBranch *models.Branch) error
 			},
 			Key: 's',
 		},
+	}
+
+	if selectedBranch.IsTrackingRemote() {
+		upstream := fmt.Sprintf("%s/%s", selectedBranch.UpstreamRemote, selectedBranch.Name)
+		upstreamResetOptions := utils.ResolvePlaceholderString(
+			self.c.Tr.ViewUpstreamResetOptions,
+			map[string]string{"upstream": upstream},
+		)
+		upstreamResetTooltip := utils.ResolvePlaceholderString(
+			self.c.Tr.ViewUpstreamResetOptionsTooltip,
+			map[string]string{"upstream": upstream},
+		)
+
+		options = append(options, &types.MenuItem{
+			LabelColumns: []string{upstreamResetOptions},
+			OpensMenu:    true,
+			OnPress: func() error {
+				if selectedBranch.RemoteBranchNotStoredLocally() {
+					return self.c.ErrorMsg(self.c.Tr.UpstreamNotStoredLocallyError)
+				}
+
+				err := self.c.Helpers().Refs.CreateGitResetMenu(upstream)
+				if err != nil {
+					return self.c.Error(err)
+				}
+				return nil
 			},
+			Tooltip: upstreamResetTooltip,
+			Key:     'g',
+		})
+	} else {
+		options = append(options, &types.MenuItem{
+			LabelColumns: []string{self.c.Tr.ViewUpstreamDisabledResetOptions},
+			OpensMenu:    true,
+			OnPress: func() error {
+				return self.c.ErrorMsg(self.c.Tr.UpstreamNotSetError)
+			},
+			Tooltip: self.c.Tr.UpstreamNotSetError,
+			Key:     'g',
+		})
+	}
+
+	return self.c.Menu(types.CreateMenuOptions{
+		Title: self.c.Tr.BranchUpstreamOptionsTitle,
+		Items: options,
 	})
 }
 

pkg/i18n/english.go

@@ -352,6 +352,9 @@ type TranslationSet struct {
 	DivergenceNoUpstream                string
 	DivergenceSectionHeaderLocal        string
 	DivergenceSectionHeaderRemote       string
+	ViewUpstreamResetOptions            string
+	ViewUpstreamResetOptionsTooltip     string
+	ViewUpstreamDisabledResetOptions    string
 	SetUpstreamTitle                    string
 	SetUpstreamMessage                  string
 	EditRemote                          string
@@ -399,6 +402,8 @@ type TranslationSet struct {
 	ViewBranchUpstreamOptions           string
 	BranchUpstreamOptionsTitle          string
 	ViewBranchUpstreamOptionsTooltip    string
+	UpstreamNotStoredLocallyError       string
+	UpstreamNotSetError                 string
 	NewGitFlowBranchPrompt              string
 	RenameBranchWarning                 string
 	OpenMenu                            string
@@ -1138,6 +1143,9 @@ func EnglishTranslationSet() TranslationSet {
 		DivergenceNoUpstream:                "Cannot show divergence of a branch that has no (locally tracked) upstream",
 		DivergenceSectionHeaderLocal:        "Local",
 		DivergenceSectionHeaderRemote:       "Remote",
+		ViewUpstreamResetOptions:            "Reset checked-out branch onto {{.upstream}}",
+		ViewUpstreamResetOptionsTooltip:     "View options for resetting the checked-out branch onto {{upstream}}. Note: this will not reset the selected branch onto the upstream, it will reset the checked-out branch onto the upstream",
+		ViewUpstreamDisabledResetOptions:    "Reset checked-out branch onto upstream of selected branch",
 		SetUpstreamTitle:                    "Set upstream branch",
 		SetUpstreamMessage:                  "Are you sure you want to set the upstream branch of '{{.checkedOut}}' to '{{.selected}}'",
 		EditRemote:                          "Edit remote",
@@ -1181,6 +1189,8 @@ func EnglishTranslationSet() TranslationSet {
 		RenameBranch:                     "Rename branch",
 		BranchUpstreamOptionsTitle:       "Upstream options",
 		ViewBranchUpstreamOptionsTooltip: "View options relating to the branch's upstream e.g. setting/unsetting the upstream and resetting to the upstream",
+		UpstreamNotStoredLocallyError:    "Cannot reset to upstream branch because it is not stored locally",
+		UpstreamNotSetError:              "The selected branch has no upstream",
 		ViewBranchUpstreamOptions:        "View upstream options",
 		NewBranchNamePrompt:              "Enter new branch name for branch",
 		RenameBranchWarning:              "This branch is tracking a remote. This action will only rename the local branch name, not the name of the remote branch. Continue?",

pkg/integration/tests/branch/reset_to_upstream.go

@@ -0,0 +1,102 @@
+package branch
+
+import (
+	"github.com/jesseduffield/lazygit/pkg/config"
+	. "github.com/jesseduffield/lazygit/pkg/integration/components"
+)
+
+var ResetToUpstream = NewIntegrationTest(NewIntegrationTestArgs{
+	Description:  "Hard reset the current branch to the selected branch upstream",
+	ExtraCmdArgs: []string{},
+	Skip:         false,
+	SetupConfig:  func(config *config.AppConfig) {},
+	SetupRepo: func(shell *Shell) {
+		shell.
+			CloneIntoRemote("origin").
+			NewBranch("hard-branch").
+			EmptyCommit("hard commit").
+			PushBranch("origin", "hard-branch").
+			NewBranch("soft-branch").
+			EmptyCommit("soft commit").
+			PushBranch("origin", "soft-branch").
+			NewBranch("base").
+			EmptyCommit("base-branch commit").
+			CreateFile("file-1", "content").
+			GitAdd("file-1").
+			Commit("commit with file").
+			CreateFile("file-2", "content").
+			GitAdd("file-2")
+	},
+	Run: func(t *TestDriver, keys config.KeybindingConfig) {
+		// soft reset
+		t.Views().Branches().
+			Focus().
+			Lines(
+				Contains("base").IsSelected(),
+				Contains("soft-branch"),
+				Contains("hard-branch"),
+			).
+			Press(keys.Branches.SetUpstream).
+			Tap(func() {
+				t.ExpectPopup().Menu().
+					Title(Equals("Upstream options")).
+					Select(Contains("Reset checked-out branch onto upstream of selected branch")).
+					Tooltip(Contains("The selected branch has no upstream")).
+					Confirm()
+				t.ExpectPopup().Alert().
+					Title(Equals("Error")).
+					Content(Equals("The selected branch has no upstream")).
+					Confirm()
+			}).
+			SelectNextItem().
+			Lines(
+				Contains("base"),
+				Contains("soft-branch").IsSelected(),
+				Contains("hard-branch"),
+			).
+			Press(keys.Branches.SetUpstream).
+			Tap(func() {
+				t.ExpectPopup().Menu().
+					Title(Equals("Upstream options")).
+					Select(Contains("Reset checked-out branch onto origin/soft-branch...")).
+					Confirm()
+
+				t.ExpectPopup().Menu().
+					Title(Equals("Reset to origin/soft-branch")).
+					Select(Contains("Soft reset")).
+					Confirm()
+			})
+		t.Views().Commits().Lines(
+			Contains("soft commit"),
+			Contains("hard commit"),
+		)
+		t.Views().Files().Lines(
+			Contains("file-1").Contains("A"),
+			Contains("file-2").Contains("A"),
+		)
+
+		// hard reset
+		t.Views().Branches().
+			Focus().
+			Lines(
+				Contains("base"),
+				Contains("soft-branch").IsSelected(),
+				Contains("hard-branch"),
+			).
+			NavigateToLine(Contains("hard-branch")).
+			Press(keys.Branches.SetUpstream).
+			Tap(func() {
+				t.ExpectPopup().Menu().
+					Title(Equals("Upstream options")).
+					Select(Contains("Reset checked-out branch onto origin/hard-branch...")).
+					Confirm()
+
+				t.ExpectPopup().Menu().
+					Title(Equals("Reset to origin/hard-branch")).
+					Select(Contains("Hard reset")).
+					Confirm()
+			})
+		t.Views().Commits().Lines(Contains("hard commit"))
+		t.Views().Files().IsEmpty()
+	},
+})

pkg/integration/tests/test_list.go

@@ -47,6 +47,7 @@ var tests = []*components.IntegrationTest{
 	branch.RebaseDoesNotAutosquash,
 	branch.RebaseFromMarkedBase,
 	branch.Reset,
+	branch.ResetToUpstream,
 	branch.ResetUpstream,
 	branch.SetUpstream,
 	branch.ShowDivergenceFromUpstream,