Right-align key labels in menu

I find this makes it look a little nicer

pkg/gui/context/list_context_trait.go

@@ -13,6 +13,8 @@ type ListContextTrait struct {
 	c                 *ContextCommon
 	list              types.IList
 	getDisplayStrings func(startIdx int, length int) [][]string
+	// alignment for each column. If nil, the default is left alignment
+	columnAlignments []utils.Alignment
 }
 
 func (self *ListContextTrait) IsListContext() {}
@@ -52,7 +54,10 @@ func (self *ListContextTrait) HandleFocusLost(opts types.OnFocusLostOpts) error
 // OnFocus assumes that the content of the context has already been rendered to the view. OnRender is the function which actually renders the content to the view
 func (self *ListContextTrait) HandleRender() error {
 	self.list.RefreshSelectedIdx()
-	content := utils.RenderDisplayStrings(self.getDisplayStrings(0, self.list.Len()))
+	content := utils.RenderDisplayStrings(
+		self.getDisplayStrings(0, self.list.Len()),
+		self.columnAlignments,
+	)
 	self.GetViewTrait().SetContent(content)
 	self.c.Render()
 	self.setFooter()

pkg/gui/context/menu_context.go

@@ -5,6 +5,7 @@ import (
 	"github.com/jesseduffield/lazygit/pkg/gui/keybindings"
 	"github.com/jesseduffield/lazygit/pkg/gui/style"
 	"github.com/jesseduffield/lazygit/pkg/gui/types"
+	"github.com/jesseduffield/lazygit/pkg/utils"
 	"github.com/samber/lo"
 )
 
@@ -37,6 +38,7 @@ func NewMenuContext(
 			getDisplayStrings: viewModel.GetDisplayStrings,
 			list:              viewModel,
 			c:                 c,
+			columnAlignments:  []utils.Alignment{utils.AlignRight, utils.AlignLeft},
 		},
 	}
 }

pkg/gui/context/viewport_list_context_trait.go

@@ -17,6 +17,6 @@ func (self *ViewportListContextTrait) FocusLine() {
 
 	startIdx, length := self.GetViewTrait().ViewPortYBounds()
 	displayStrings := self.ListContextTrait.getDisplayStrings(startIdx, length)
-	content := utils.RenderDisplayStrings(displayStrings)
+	content := utils.RenderDisplayStrings(displayStrings, nil)
 	self.GetViewTrait().SetViewPortContent(content)
 }

pkg/gui/presentation/authors/authors.go

@@ -42,7 +42,7 @@ func LongAuthor(authorName string) string {
 		return value
 	}
 
-	paddedAuthorName := utils.WithPadding(authorName, 17)
+	paddedAuthorName := utils.WithPadding(authorName, 17, utils.AlignLeft)
 	truncatedName := utils.TruncateWithEllipsis(paddedAuthorName, 17)
 	value := AuthorStyle(authorName).Sprint(truncatedName)
 	authorNameCache[authorName] = value

pkg/gui/presentation/branches.go

@@ -35,7 +35,7 @@ func getBranchDisplayStrings(b *models.Branch, fullDescription bool, diffed bool
 	}
 
 	coloredName := nameTextStyle.Sprint(displayName)
-	branchStatus := utils.WithPadding(ColoredBranchStatus(b, tr), 2)
+	branchStatus := utils.WithPadding(ColoredBranchStatus(b, tr), 2, utils.AlignLeft)
 	coloredName = fmt.Sprintf("%s %s", coloredName, branchStatus)
 
 	recencyColor := style.FgCyan

pkg/gui/presentation/commits_test.go

@@ -283,7 +283,7 @@ func TestGetCommitListDisplayStrings(t *testing.T) {
 					s.showYouAreHereLabel,
 				)
 
-				renderedResult := utils.RenderDisplayStrings(result)
+				renderedResult := utils.RenderDisplayStrings(result, nil)
 				t.Logf("\n%s", renderedResult)
 
 				assert.EqualValues(t, s.expected, renderedResult)

pkg/utils/formatting.go

@@ -8,20 +8,52 @@ import (
 	"github.com/samber/lo"
 )
 
+type Alignment int
+
+const (
+	AlignLeft Alignment = iota
+	AlignRight
+)
+
+type ColumnConfig struct {
+	Width     int
+	Alignment Alignment
+}
+
 // WithPadding pads a string as much as you want
-func WithPadding(str string, padding int) string {
+func WithPadding(str string, padding int, alignment Alignment) string {
 	uncoloredStr := Decolorise(str)
 	width := runewidth.StringWidth(uncoloredStr)
 	if padding < width {
 		return str
 	}
-	return str + strings.Repeat(" ", padding-width)
+	space := strings.Repeat(" ", padding-width)
+	if alignment == AlignLeft {
+		return str + space
+	} else {
+		return space + str
+	}
 }
 
-func RenderDisplayStrings(displayStringsArr [][]string) string {
+// defaults to left-aligning each column. If you want to set the alignment of
+// each column, pass in a slice of Alignment values.
+func RenderDisplayStrings(displayStringsArr [][]string, columnAlignments []Alignment) string {
 	displayStringsArr = excludeBlankColumns(displayStringsArr)
 	padWidths := getPadWidths(displayStringsArr)
-	output := getPaddedDisplayStrings(displayStringsArr, padWidths)
+	columnConfigs := make([]ColumnConfig, len(padWidths))
+	for i, padWidth := range padWidths {
+		// gracefully handle when columnAlignments is shorter than padWidths
+		alignment := AlignLeft
+		if len(columnAlignments) > i {
+			alignment = columnAlignments[i]
+		}
+
+		columnConfigs[i] = ColumnConfig{
+			Width:     padWidth,
+			Alignment: alignment,
+		}
+	}
+	output := getPaddedDisplayStrings(displayStringsArr, columnConfigs)
 
 	return output
 }
@@ -59,23 +91,23 @@ outer:
 	return displayStringsArr
 }
 
-func getPaddedDisplayStrings(stringArrays [][]string, padWidths []int) string {
+func getPaddedDisplayStrings(stringArrays [][]string, columnConfigs []ColumnConfig) string {
 	builder := strings.Builder{}
 	for i, stringArray := range stringArrays {
 		if len(stringArray) == 0 {
 			continue
 		}
-		for j, padWidth := range padWidths {
+		for j, columnConfig := range columnConfigs {
 			if len(stringArray)-1 < j {
 				continue
 			}
-			builder.WriteString(WithPadding(stringArray[j], padWidth))
+			builder.WriteString(WithPadding(stringArray[j], columnConfig.Width, columnConfig.Alignment))
 			builder.WriteString(" ")
 		}
-		if len(stringArray)-1 < len(padWidths) {
+		if len(stringArray)-1 < len(columnConfigs) {
 			continue
 		}
-		builder.WriteString(stringArray[len(padWidths)])
+		builder.WriteString(stringArray[len(columnConfigs)])
 
 		if i < len(stringArrays)-1 {
 			builder.WriteString("\n")

pkg/utils/formatting_test.go

@@ -6,34 +6,49 @@ import (
 	"github.com/stretchr/testify/assert"
 )
 
-// TestWithPadding is a function.
 func TestWithPadding(t *testing.T) {
 	type scenario struct {
-		str      string
-		padding  int
-		expected string
+		str       string
+		padding   int
+		alignment Alignment
+		expected  string
 	}
 
 	scenarios := []scenario{
 		{
-			"hello world !",
-			1,
-			"hello world !",
+			str:       "hello world !",
+			padding:   1,
+			alignment: AlignLeft,
+			expected:  "hello world !",
 		},
 		{
-			"hello world !",
-			14,
-			"hello world ! ",
+			str:       "hello world !",
+			padding:   14,
+			alignment: AlignLeft,
+			expected:  "hello world ! ",
 		},
 		{
-			"Güçlü",
-			7,
-			"Güçlü  ",
+			str:       "hello world !",
+			padding:   14,
+			alignment: AlignRight,
+			expected:  " hello world !",
+		},
+		{
+			str:       "Güçlü",
+			padding:   7,
+			alignment: AlignLeft,
+			expected:  "Güçlü  ",
+		},
+		{
+			str:       "Güçlü",
+			padding:   7,
+			alignment: AlignRight,
+			expected:  "  Güçlü",
 		},
 	}
 
 	for _, s := range scenarios {
-		assert.EqualValues(t, s.expected, WithPadding(s.str, s.padding))
+		assert.EqualValues(t, s.expected, WithPadding(s.str, s.padding, s.alignment))
 	}
 }
 
@@ -144,39 +159,66 @@ func TestTruncateWithEllipsis(t *testing.T) {
 
 func TestRenderDisplayStrings(t *testing.T) {
 	type scenario struct {
-		input    [][]string
-		expected string
+		input            [][]string
+		columnAlignments []Alignment
+		expected         string
 	}
 
 	tests := []scenario{
 		{
-			[][]string{{""}, {""}},
-			"",
+			input:            [][]string{{""}, {""}},
+			columnAlignments: nil,
+			expected:         "",
 		},
 		{
-			[][]string{{"a"}, {""}},
-			"a\n",
+			input:            [][]string{{"a"}, {""}},
+			columnAlignments: nil,
+			expected:         "a\n",
 		},
 		{
-			[][]string{{"a"}, {"b"}},
-			"a\nb",
+			input:            [][]string{{"a"}, {"b"}},
+			columnAlignments: nil,
+			expected:         "a\nb",
 		},
 		{
-			[][]string{{"a", "b"}, {"c", "d"}},
-			"a b\nc d",
+			input:            [][]string{{"a", "b"}, {"c", "d"}},
+			columnAlignments: nil,
+			expected:         "a b\nc d",
 		},
 		{
-			[][]string{{"a", "", "c"}, {"d", "", "f"}},
-			"a c\nd f",
+			input:            [][]string{{"a", "", "c"}, {"d", "", "f"}},
+			columnAlignments: nil,
+			expected:         "a c\nd f",
 		},
 		{
-			[][]string{{"a", "", "c", ""}, {"d", "", "f", ""}},
-			"a c\nd f",
+			input:            [][]string{{"a", "", "c", ""}, {"d", "", "f", ""}},
+			columnAlignments: nil,
+			expected:         "a c\nd f",
+		},
+		{
+			input:            [][]string{{"abc", "", "d", ""}, {"e", "", "f", ""}},
+			columnAlignments: nil,
+			expected:         "abc d\ne   f",
+		},
+		{
+			input:            [][]string{{"abc", "", "d", ""}, {"e", "", "f", ""}},
+			columnAlignments: []Alignment{AlignLeft, AlignLeft}, // same as nil (default)
+			expected:         "abc d\ne   f",
+		},
+		{
+			input:            [][]string{{"abc", "", "d", ""}, {"e", "", "f", ""}},
+			columnAlignments: []Alignment{AlignRight, AlignLeft},
+			expected:         "abc d\n  e f",
+		},
+		{
+			input:            [][]string{{"abc", "", "d", ""}, {"e", "", "f", ""}},
+			columnAlignments: []Alignment{AlignRight}, // gracefully defaults unspecified columns to left-align
+			expected:         "abc d\n  e f",
 		},
 	}
 
 	for _, test := range tests {
-		output := RenderDisplayStrings(test.input)
+		output := RenderDisplayStrings(test.input, test.columnAlignments)
 		if !assert.EqualValues(t, output, test.expected) {
 			t.Errorf("RenderDisplayStrings(%v) = %v, want %v", test.input, output, test.expected)
 		}