don't use newlines at the end of panel buffers

pkg/gui/branches_panel.go

@@ -152,9 +152,11 @@ func (gui *Gui) refreshBranches(g *gocui.Gui) error {
 		}
 		gui.State.Branches = builder.Build()
 		v.Clear()
+		displayStrings := []string{}
 		for _, branch := range gui.State.Branches {
-			fmt.Fprintln(v, branch.GetDisplayString())
+			displayStrings = append(displayStrings, branch.GetDisplayString())
 		}
+		fmt.Fprint(v, strings.Join(displayStrings, "\n"))
 		gui.resetOrigin(v)
 		return gui.refreshStatus(g)
 	})

pkg/gui/commits_panel.go

@@ -2,12 +2,27 @@ package gui
 
 import (
 	"errors"
+	"fmt"
+	"strings"
 
 	"github.com/fatih/color"
 	"github.com/jesseduffield/gocui"
 	"github.com/jesseduffield/lazygit/pkg/commands"
 )
 
+func (gui *Gui) renderCommit(commit commands.Commit) string {
+	red := color.New(color.FgRed)
+	yellow := color.New(color.FgYellow)
+	white := color.New(color.FgWhite)
+
+	shaColor := yellow
+	if commit.Pushed {
+		shaColor = red
+	}
+
+	return shaColor.Sprint(commit.Sha) + " " + white.Sprint(commit.Name)
+}
+
 func (gui *Gui) refreshCommits(g *gocui.Gui) error {
 	g.Update(func(*gocui.Gui) error {
 		gui.State.Commits = gui.GitCommand.GetCommits()
@@ -16,19 +31,11 @@ func (gui *Gui) refreshCommits(g *gocui.Gui) error {
 			panic(err)
 		}
 		v.Clear()
-		red := color.New(color.FgRed)
-		yellow := color.New(color.FgYellow)
-		white := color.New(color.FgWhite)
-		shaColor := white
-		for _, commit := range gui.State.Commits {
-			if commit.Pushed {
-				shaColor = red
-			} else {
-				shaColor = yellow
-			}
-			shaColor.Fprint(v, commit.Sha+" ")
-			white.Fprintln(v, commit.Name)
+		displayStrings := make([]string, len(gui.State.Commits))
+		for i, commit := range gui.State.Commits {
+			displayStrings[i] = gui.renderCommit(commit)
 		}
+		fmt.Fprint(v, strings.Join(displayStrings, "\n"))
 		gui.refreshStatus(g)
 		if g.CurrentView().Name() == "commits" {
 			gui.handleCommitSelect(g, v)

pkg/gui/files_panel.go

@@ -7,6 +7,7 @@ import (
 
 	// "strings"
 
+	"fmt"
 	"strings"
 
 	"github.com/fatih/color"
@@ -319,16 +320,15 @@ func (gui *Gui) refreshFiles(g *gocui.Gui) error {
 		return err
 	}
 	gui.refreshStateFiles()
-	filesView.Clear()
+
+	displayStrings := make([]string, len(gui.State.Files))
 	for i, file := range gui.State.Files {
-		str := gui.renderFile(file)
-		if i < len(gui.State.Files)-1 {
-			str += "\n"
-		}
-		if _, err := filesView.Write([]byte(str)); err != nil {
-			return err
-		}
+		displayStrings[i] = gui.renderFile(file)
 	}
+
+	filesView.Clear()
+	fmt.Fprint(filesView, strings.Join(displayStrings, "\n"))
+
 	gui.correctCursor(filesView)
 	if filesView == g.CurrentView() {
 		gui.handleFileSelect(g, filesView)

pkg/gui/stash_panel.go

@@ -2,6 +2,7 @@ package gui
 
 import (
 	"fmt"
+	"strings"
 
 	"github.com/jesseduffield/gocui"
 	"github.com/jesseduffield/lazygit/pkg/commands"
@@ -14,10 +15,15 @@ func (gui *Gui) refreshStashEntries(g *gocui.Gui) error {
 			panic(err)
 		}
 		gui.State.StashEntries = gui.GitCommand.GetStashEntries()
-		v.Clear()
-		for _, stashEntry := range gui.State.StashEntries {
-			fmt.Fprintln(v, stashEntry.DisplayString)
+
+		displayStrings := make([]string, len(gui.State.StashEntries))
+		for i, stashEntry := range gui.State.StashEntries {
+			displayStrings[i] = stashEntry.DisplayString
 		}
+
+		v.Clear()
+		fmt.Fprint(v, strings.Join(displayStrings, "\n"))
+
 		return gui.resetOrigin(v)
 	})
 	return nil