Support setting the similarity threshold for detecting renames

pkg/gui/controllers/rename_similarity_threshold_controller.go

@@ -0,0 +1,100 @@
+package controllers
+
+import (
+	"fmt"
+
+	"github.com/jesseduffield/lazygit/pkg/gui/context"
+	"github.com/jesseduffield/lazygit/pkg/gui/types"
+	"github.com/samber/lo"
+)
+
+// This controller lets you change the similarity threshold for detecting renames.
+
+var CONTEXT_KEYS_SHOWING_RENAMES = []types.ContextKey{
+	context.FILES_CONTEXT_KEY,
+	context.SUB_COMMITS_CONTEXT_KEY,
+	context.LOCAL_COMMITS_CONTEXT_KEY,
+	context.STASH_CONTEXT_KEY,
+}
+
+type RenameSimilarityThresholdController struct {
+	baseController
+	c *ControllerCommon
+}
+
+var _ types.IController = &RenameSimilarityThresholdController{}
+
+func NewRenameSimilarityThresholdController(
+	common *ControllerCommon,
+) *RenameSimilarityThresholdController {
+	return &RenameSimilarityThresholdController{
+		baseController: baseController{},
+		c:              common,
+	}
+}
+
+func (self *RenameSimilarityThresholdController) GetKeybindings(opts types.KeybindingsOpts) []*types.Binding {
+	bindings := []*types.Binding{
+		{
+			Key:         opts.GetKey(opts.Config.Universal.IncreaseRenameSimilarityThreshold),
+			Handler:     self.Increase,
+			Description: self.c.Tr.IncreaseRenameSimilarityThreshold,
+			Tooltip:     self.c.Tr.IncreaseRenameSimilarityThresholdTooltip,
+		},
+		{
+			Key:         opts.GetKey(opts.Config.Universal.DecreaseRenameSimilarityThreshold),
+			Handler:     self.Decrease,
+			Description: self.c.Tr.DecreaseRenameSimilarityThreshold,
+			Tooltip:     self.c.Tr.DecreaseRenameSimilarityThresholdTooltip,
+		},
+	}
+
+	return bindings
+}
+
+func (self *RenameSimilarityThresholdController) Context() types.Context {
+	return nil
+}
+
+func (self *RenameSimilarityThresholdController) Increase() error {
+	old_size := self.c.AppState.RenameSimilarityThreshold
+
+	if self.isShowingRenames() && old_size < 100 {
+		self.c.AppState.RenameSimilarityThreshold = min(100, old_size+5)
+		return self.applyChange()
+	}
+
+	return nil
+}
+
+func (self *RenameSimilarityThresholdController) Decrease() error {
+	old_size := self.c.AppState.RenameSimilarityThreshold
+
+	if self.isShowingRenames() && old_size > 5 {
+		self.c.AppState.RenameSimilarityThreshold = max(5, old_size-5)
+		return self.applyChange()
+	}
+
+	return nil
+}
+
+func (self *RenameSimilarityThresholdController) applyChange() error {
+	self.c.Toast(fmt.Sprintf(self.c.Tr.RenameSimilarityThresholdChanged, self.c.AppState.RenameSimilarityThreshold))
+	self.c.SaveAppStateAndLogError()
+
+	currentContext := self.c.CurrentStaticContext()
+	switch currentContext.GetKey() {
+	// we make an exception for our files context, because it actually need to refresh its state afterwards.
+	case context.FILES_CONTEXT_KEY:
+		return self.c.Refresh(types.RefreshOptions{Scope: []types.RefreshableView{types.FILES}})
+	default:
+		return currentContext.HandleRenderToMain()
+	}
+}
+
+func (self *RenameSimilarityThresholdController) isShowingRenames() bool {
+	return lo.Contains(
+		CONTEXT_KEYS_SHOWING_RENAMES,
+		self.c.CurrentStaticContext().GetKey(),
+	)
+}