add commit files controller

pkg/gui/controllers/helpers/helpers.go

@@ -10,6 +10,7 @@ type Helpers struct {
 	MergeAndRebase *MergeAndRebaseHelper
 	CherryPick     *CherryPickHelper
 	Host           *HostHelper
+	PatchBuilding  *PatchBuildingHelper
 }
 
 func NewStubHelpers() *Helpers {
@@ -23,5 +24,6 @@ func NewStubHelpers() *Helpers {
 		MergeAndRebase: &MergeAndRebaseHelper{},
 		CherryPick:     &CherryPickHelper{},
 		Host:           &HostHelper{},
+		PatchBuilding:  &PatchBuildingHelper{},
 	}
 }

pkg/gui/controllers/helpers/patch_building_helper.go

@@ -0,0 +1,33 @@
+package helpers
+
+import (
+	"github.com/jesseduffield/lazygit/pkg/commands"
+	"github.com/jesseduffield/lazygit/pkg/commands/types/enums"
+	"github.com/jesseduffield/lazygit/pkg/gui/types"
+)
+
+type IPatchBuildingHelper interface {
+	ValidateNormalWorkingTreeState() (bool, error)
+}
+
+type PatchBuildingHelper struct {
+	c   *types.HelperCommon
+	git *commands.GitCommand
+}
+
+func NewPatchBuildingHelper(
+	c *types.HelperCommon,
+	git *commands.GitCommand,
+) *PatchBuildingHelper {
+	return &PatchBuildingHelper{
+		c:   c,
+		git: git,
+	}
+}
+
+func (self *PatchBuildingHelper) ValidateNormalWorkingTreeState() (bool, error) {
+	if self.git.Status.WorkingTreeState() != enums.REBASE_MODE_NONE {
+		return false, self.c.ErrorMsg(self.c.Tr.CantPatchWhileRebasingError)
+	}
+	return true, nil
+}