Extract some functions from CommitFilesController to a new CommitFilesHelper

pkg/gui/controllers.go

@@ -115,6 +115,7 @@ func (gui *Gui) resetHelpersAndControllers() {
 		AmendHelper:     helpers.NewAmendHelper(helperCommon, gpgHelper),
 		FixupHelper:     helpers.NewFixupHelper(helperCommon),
 		Commits:         commitsHelper,
+		CommitFiles:     helpers.NewCommitFilesHelper(helperCommon),
 		Snake:           helpers.NewSnakeHelper(helperCommon),
 		Diff:            diffHelper,
 		Repos:           reposHelper,

pkg/gui/controllers/commits_files_controller.go

@@ -390,7 +390,7 @@ func (self *CommitFilesController) toggleForPatch(selectedNodes []*filetree.Comm
 	toggle := func() error {
 		return self.c.WithWaitingStatus(self.c.Tr.UpdatingPatch, func(gocui.Task) error {
 			if !self.c.Git().Patch.PatchBuilder.Active() {
-				if err := self.startPatchBuilder(); err != nil {
+				if err := self.c.Helpers().CommitFiles.StartPatchBuilder(); err != nil {
 					return err
 				}
 			}
@@ -429,7 +429,7 @@ func (self *CommitFilesController) toggleForPatch(selectedNodes []*filetree.Comm
 		})
 	}
 
-	from, to, reverse := self.currentFromToReverseForPatchBuilding()
+	from, to, reverse := self.c.Helpers().CommitFiles.CurrentFromToReverseForPatchBuilding()
 	if self.c.Git().Patch.PatchBuilder.Active() && self.c.Git().Patch.PatchBuilder.NewPatchRequired(from, to, reverse) {
 		self.c.Confirm(types.ConfirmOpts{
 			Title:  self.c.Tr.DiscardPatch,
@@ -451,72 +451,8 @@ func (self *CommitFilesController) toggleAllForPatch(_ *filetree.CommitFileNode)
 	return self.toggleForPatch([]*filetree.CommitFileNode{root})
 }
 
-func (self *CommitFilesController) startPatchBuilder() error {
-	commitFilesContext := self.context()
-
-	canRebase := commitFilesContext.GetCanRebase()
-	from, to, reverse := self.currentFromToReverseForPatchBuilding()
-
-	self.c.Git().Patch.PatchBuilder.Start(from, to, reverse, canRebase)
-	return nil
-}
-
-func (self *CommitFilesController) currentFromToReverseForPatchBuilding() (string, string, bool) {
-	commitFilesContext := self.context()
-
-	from, to := commitFilesContext.GetFromAndToForDiff()
-	from, reverse := self.c.Modes().Diffing.GetFromAndReverseArgsForDiff(from)
-	return from, to, reverse
-}
-
 func (self *CommitFilesController) enter(node *filetree.CommitFileNode) error {
-	return self.enterCommitFile(node, types.OnFocusOpts{ClickedWindowName: "", ClickedViewLineIdx: -1, ClickedViewRealLineIdx: -1})
+	return self.c.Helpers().CommitFiles.EnterCommitFile(node, types.OnFocusOpts{ClickedWindowName: "", ClickedViewLineIdx: -1, ClickedViewRealLineIdx: -1})
-}
-
-func (self *CommitFilesController) enterCommitFile(node *filetree.CommitFileNode, opts types.OnFocusOpts) error {
-	if node.File == nil {
-		return self.handleToggleCommitFileDirCollapsed(node)
-	}
-
-	if self.c.AppState.DiffContextSize == 0 {
-		return fmt.Errorf(self.c.Tr.Actions.NotEnoughContextToStage,
-			keybindings.Label(self.c.UserConfig().Keybinding.Universal.IncreaseContextInDiffView))
-	}
-
-	enterTheFile := func() error {
-		if !self.c.Git().Patch.PatchBuilder.Active() {
-			if err := self.startPatchBuilder(); err != nil {
-				return err
-			}
-		}
-
-		self.c.Context().Push(self.c.Contexts().CustomPatchBuilder, opts)
-		return nil
-	}
-
-	from, to, reverse := self.currentFromToReverseForPatchBuilding()
-	if self.c.Git().Patch.PatchBuilder.Active() && self.c.Git().Patch.PatchBuilder.NewPatchRequired(from, to, reverse) {
-		self.c.Confirm(types.ConfirmOpts{
-			Title:  self.c.Tr.DiscardPatch,
-			Prompt: self.c.Tr.DiscardPatchConfirm,
-			HandleConfirm: func() error {
-				self.c.Git().Patch.PatchBuilder.Reset()
-				return enterTheFile()
-			},
-		})
-
-		return nil
-	}
-
-	return enterTheFile()
-}
-
-func (self *CommitFilesController) handleToggleCommitFileDirCollapsed(node *filetree.CommitFileNode) error {
-	self.context().CommitFileTreeViewModel.ToggleCollapsed(node.GetInternalPath())
-
-	self.c.PostRefreshUpdate(self.context())
-
-	return nil
 }
 
 // NOTE: this is very similar to handleToggleFileTreeView, could be DRY'd with generics
@@ -573,7 +509,7 @@ func (self *CommitFilesController) GetOnClickFocusedMainView() func(mainViewName
 			}
 		}
 
-		return self.enterCommitFile(node, types.OnFocusOpts{ClickedWindowName: "main", ClickedViewLineIdx: line, ClickedViewRealLineIdx: line})
+		return self.c.Helpers().CommitFiles.EnterCommitFile(node, types.OnFocusOpts{ClickedWindowName: "main", ClickedViewLineIdx: line, ClickedViewRealLineIdx: line})
 	}
 }
 

pkg/gui/controllers/helpers/commit_files_helper.go

@@ -0,0 +1,87 @@
+package helpers
+
+import (
+	"fmt"
+
+	"github.com/jesseduffield/lazygit/pkg/gui/context"
+	"github.com/jesseduffield/lazygit/pkg/gui/filetree"
+	"github.com/jesseduffield/lazygit/pkg/gui/keybindings"
+	"github.com/jesseduffield/lazygit/pkg/gui/types"
+)
+
+type CommitFilesHelper struct {
+	c *HelperCommon
+}
+
+func NewCommitFilesHelper(c *HelperCommon) *CommitFilesHelper {
+	return &CommitFilesHelper{
+		c: c,
+	}
+}
+
+func (self *CommitFilesHelper) EnterCommitFile(node *filetree.CommitFileNode, opts types.OnFocusOpts) error {
+	if node.File == nil {
+		self.handleToggleCommitFileDirCollapsed(node)
+		return nil
+	}
+
+	if self.c.AppState.DiffContextSize == 0 {
+		return fmt.Errorf(self.c.Tr.Actions.NotEnoughContextToStage,
+			keybindings.Label(self.c.UserConfig().Keybinding.Universal.IncreaseContextInDiffView))
+	}
+
+	enterTheFile := func() error {
+		if !self.c.Git().Patch.PatchBuilder.Active() {
+			if err := self.StartPatchBuilder(); err != nil {
+				return err
+			}
+		}
+
+		self.c.Context().Push(self.c.Contexts().CustomPatchBuilder, opts)
+		return nil
+	}
+
+	from, to, reverse := self.CurrentFromToReverseForPatchBuilding()
+	if self.c.Git().Patch.PatchBuilder.Active() && self.c.Git().Patch.PatchBuilder.NewPatchRequired(from, to, reverse) {
+		self.c.Confirm(types.ConfirmOpts{
+			Title:  self.c.Tr.DiscardPatch,
+			Prompt: self.c.Tr.DiscardPatchConfirm,
+			HandleConfirm: func() error {
+				self.c.Git().Patch.PatchBuilder.Reset()
+				return enterTheFile()
+			},
+		})
+
+		return nil
+	}
+
+	return enterTheFile()
+}
+
+func (self *CommitFilesHelper) context() *context.CommitFilesContext {
+	return self.c.Contexts().CommitFiles
+}
+
+func (self *CommitFilesHelper) handleToggleCommitFileDirCollapsed(node *filetree.CommitFileNode) {
+	self.context().CommitFileTreeViewModel.ToggleCollapsed(node.GetInternalPath())
+
+	self.c.PostRefreshUpdate(self.context())
+}
+
+func (self *CommitFilesHelper) StartPatchBuilder() error {
+	commitFilesContext := self.context()
+
+	canRebase := commitFilesContext.GetCanRebase()
+	from, to, reverse := self.CurrentFromToReverseForPatchBuilding()
+
+	self.c.Git().Patch.PatchBuilder.Start(from, to, reverse, canRebase)
+	return nil
+}
+
+func (self *CommitFilesHelper) CurrentFromToReverseForPatchBuilding() (string, string, bool) {
+	commitFilesContext := self.context()
+
+	from, to := commitFilesContext.GetFromAndToForDiff()
+	from, reverse := self.c.Modes().Diffing.GetFromAndReverseArgsForDiff(from)
+	return from, to, reverse
+}

pkg/gui/controllers/helpers/helpers.go

@@ -35,6 +35,7 @@ type Helpers struct {
 	AmendHelper    *AmendHelper
 	FixupHelper    *FixupHelper
 	Commits        *CommitsHelper
+	CommitFiles    *CommitFilesHelper
 	Snake          *SnakeHelper
 	// lives in context package because our contexts need it to render to main
 	Diff              *DiffHelper
@@ -73,6 +74,7 @@ func NewStubHelpers() *Helpers {
 		AmendHelper:       &AmendHelper{},
 		FixupHelper:       &FixupHelper{},
 		Commits:           &CommitsHelper{},
+		CommitFiles:       &CommitFilesHelper{},
 		Snake:             &SnakeHelper{},
 		Diff:              &DiffHelper{},
 		Repos:             &ReposHelper{},