package controllers import ( "errors" "github.com/jesseduffield/lazygit/pkg/gui/context" "github.com/jesseduffield/lazygit/pkg/gui/types" "github.com/samber/lo" ) // This controller lets you change the context size for diffs. The 'context' in 'context size' refers to the conventional meaning of the word 'context' in a diff, as opposed to lazygit's own idea of a 'context'. var CONTEXT_KEYS_SHOWING_DIFFS = []types.ContextKey{ context.FILES_CONTEXT_KEY, context.COMMIT_FILES_CONTEXT_KEY, context.STASH_CONTEXT_KEY, context.LOCAL_COMMITS_CONTEXT_KEY, context.SUB_COMMITS_CONTEXT_KEY, context.STAGING_MAIN_CONTEXT_KEY, context.STAGING_SECONDARY_CONTEXT_KEY, context.PATCH_BUILDING_MAIN_CONTEXT_KEY, context.PATCH_BUILDING_SECONDARY_CONTEXT_KEY, } type ContextLinesController struct { baseController c *ControllerCommon } var _ types.IController = &ContextLinesController{} func NewContextLinesController( common *ControllerCommon, ) *ContextLinesController { return &ContextLinesController{ baseController: baseController{}, c: common, } } func (self *ContextLinesController) GetKeybindings(opts types.KeybindingsOpts) []*types.Binding { bindings := []*types.Binding{ { Key: opts.GetKey(opts.Config.Universal.IncreaseContextInDiffView), Handler: self.Increase, Description: self.c.Tr.IncreaseContextInDiffView, }, { Key: opts.GetKey(opts.Config.Universal.DecreaseContextInDiffView), Handler: self.Decrease, Description: self.c.Tr.DecreaseContextInDiffView, }, } return bindings } func (self *ContextLinesController) Context() types.Context { return nil } func (self *ContextLinesController) Increase() error { if self.isShowingDiff() { if err := self.checkCanChangeContext(); err != nil { return self.c.Error(err) } self.c.UserConfig.Git.DiffContextSize = self.c.UserConfig.Git.DiffContextSize + 1 return self.applyChange() } return nil } func (self *ContextLinesController) Decrease() error { old_size := self.c.UserConfig.Git.DiffContextSize if self.isShowingDiff() && old_size > 1 { if err := self.checkCanChangeContext(); err != nil { return self.c.Error(err) } self.c.UserConfig.Git.DiffContextSize = old_size - 1 return self.applyChange() } return nil } func (self *ContextLinesController) applyChange() error { currentContext := self.c.CurrentStaticContext() switch currentContext.GetKey() { // we make an exception for our staging and patch building contexts because they actually need to refresh their state afterwards. case context.PATCH_BUILDING_MAIN_CONTEXT_KEY: return self.c.Refresh(types.RefreshOptions{Scope: []types.RefreshableView{types.PATCH_BUILDING}}) case context.STAGING_MAIN_CONTEXT_KEY, context.STAGING_SECONDARY_CONTEXT_KEY: return self.c.Refresh(types.RefreshOptions{Scope: []types.RefreshableView{types.STAGING}}) default: return currentContext.HandleRenderToMain() } } func (self *ContextLinesController) checkCanChangeContext() error { if self.c.Git().Patch.PatchBuilder.Active() { return errors.New(self.c.Tr.CantChangeContextSizeError) } return nil } func (self *ContextLinesController) isShowingDiff() bool { return lo.Contains( CONTEXT_KEYS_SHOWING_DIFFS, self.c.CurrentStaticContext().GetKey(), ) }