Modernize all codes

pkg/commands/git_commands/commit_loader.go

@@ -218,8 +218,8 @@ func (self *CommitLoader) extractCommitFromLine(hashPool *utils.StringPool, line
 	var tags []string
 
 	if extraInfo != "" {
-		extraInfoFields := strings.Split(extraInfo, ",")
-		for _, extraInfoField := range extraInfoFields {
+		extraInfoFields := strings.SplitSeq(extraInfo, ",")
+		for extraInfoField := range extraInfoFields {
 			extraInfoField = strings.TrimSpace(extraInfoField)
 			re := regexp.MustCompile(`tag: (.+)`)
 			tagMatch := re.FindStringSubmatch(extraInfoField)

pkg/commands/git_commands/flow.go

@@ -32,7 +32,7 @@ func (self *FlowCommands) FinishCmdObj(branchName string) (*oscommands.CmdObj, e
 	suffix := strings.Replace(branchName, prefix, "", 1)
 
 	branchType := ""
-	for _, line := range strings.Split(strings.TrimSpace(prefixes), "\n") {
+	for line := range strings.SplitSeq(strings.TrimSpace(prefixes), "\n") {
 		if strings.HasPrefix(line, "gitflow.prefix.") && strings.HasSuffix(line, prefix) {
 
 			regex := regexp.MustCompile("gitflow.prefix.([^ ]*) .*")

pkg/fakes/log.go

@@ -16,7 +16,7 @@ type FakeFieldLogger struct {
 	*logrus.Entry
 }
 
-func (self *FakeFieldLogger) Error(args ...interface{}) {
+func (self *FakeFieldLogger) Error(args ...any) {
 	if len(args) != 1 {
 		panic("Expected exactly one argument to FakeFieldLogger.Error")
 	}
@@ -29,7 +29,7 @@ func (self *FakeFieldLogger) Error(args ...interface{}) {
 	}
 }
 
-func (self *FakeFieldLogger) Errorf(format string, args ...interface{}) {
+func (self *FakeFieldLogger) Errorf(format string, args ...any) {
 	msg := fmt.Sprintf(format, args...)
 	self.loggedErrors = append(self.loggedErrors, msg)
 }

pkg/gui/controllers/helpers/confirmation_helper.go

@@ -109,11 +109,7 @@ func (self *ConfirmationHelper) getPopupPanelWidth() int {
 	panelWidth := 4 * width / 7
 	minWidth := 80
 	if panelWidth < minWidth {
-		if width-2 < minWidth {
-			panelWidth = width - 2
-		} else {
-			panelWidth = minWidth
-		}
+		panelWidth = min(width-2, minWidth)
 	}
 
 	return panelWidth

pkg/gui/controllers/helpers/fixup_helper.go

@@ -225,8 +225,8 @@ func (self *FixupHelper) blameDeletedLines(deletedLineHunks []*hunk) ([]string,
 			if err != nil {
 				return err
 			}
-			blameLines := strings.Split(strings.TrimSuffix(blameOutput, "\n"), "\n")
-			for _, line := range blameLines {
+			blameLines := strings.SplitSeq(strings.TrimSuffix(blameOutput, "\n"), "\n")
+			for line := range blameLines {
 				hashChan <- strings.Split(line, " ")[0]
 			}
 			return nil

pkg/gui/controllers/helpers/repos_helper.go

@@ -59,9 +59,9 @@ func (self *ReposHelper) getCurrentBranch(path string) string {
 			content := strings.TrimSpace(string(headFile))
 			refsPrefix := "ref: refs/heads/"
 			var branchDisplay string
-			if strings.HasPrefix(content, refsPrefix) {
+			if bareName, ok := strings.CutPrefix(content, refsPrefix); ok {
 				// is a branch
-				branchDisplay = strings.TrimPrefix(content, refsPrefix)
+				branchDisplay = bareName
 			} else {
 				// detached HEAD state, displaying short hash
 				branchDisplay = utils.ShortHash(content)

pkg/gui/controllers/helpers/window_arrangement_helper.go

@@ -2,6 +2,7 @@ package helpers
 
 import (
 	"fmt"
+	mapsPkg "maps"
 	"math"
 	"strings"
 
@@ -194,9 +195,7 @@ func mainPanelChildren(args WindowArrangementArgs) []*boxlayout.Box {
 func MergeMaps[K comparable, V any](maps ...map[K]V) map[K]V {
 	result := map[K]V{}
 	for _, currMap := range maps {
-		for key, value := range currMap {
-			result[key] = value
-		}
+		mapsPkg.Copy(result, currMap)
 	}
 
 	return result

pkg/gui/controllers/local_commits_controller.go

@@ -1116,8 +1116,8 @@ func isFixupCommit(subject string) (string, bool) {
 	prefixes := []string{"fixup! ", "squash! ", "amend! "}
 	trimPrefix := func(s string) (string, bool) {
 		for _, prefix := range prefixes {
-			if strings.HasPrefix(s, prefix) {
-				return strings.TrimPrefix(s, prefix), true
+			if trimmedSubject, ok := strings.CutPrefix(s, prefix); ok {
+				return trimmedSubject, true
 			}
 		}
 		return s, false

pkg/gui/presentation/graph/graph_test.go

@@ -227,7 +227,7 @@ func TestRenderCommitGraph(t *testing.T) {
 			lines := RenderCommitGraph(commits, hashPool.Add("blah"), getStyle)
 
 			trimmedExpectedOutput := ""
-			for _, line := range strings.Split(strings.TrimPrefix(test.expectedOutput, "\n"), "\n") {
+			for line := range strings.SplitSeq(strings.TrimPrefix(test.expectedOutput, "\n"), "\n") {
 				trimmedExpectedOutput += strings.TrimSpace(line) + "\n"
 			}
 

pkg/gui/services/custom_commands/menu_generator.go

@@ -34,7 +34,7 @@ func (self *MenuGenerator) call(commandOutput, filter, valueFormat, labelFormat
 	}
 
 	menuItems := []*commandMenuItem{}
-	for _, line := range strings.Split(commandOutput, "\n") {
+	for line := range strings.SplitSeq(commandOutput, "\n") {
 		if line == "" {
 			continue
 		}

pkg/gui/style/text_style.go

@@ -36,8 +36,8 @@ type TextStyle struct {
 }
 
 type Sprinter interface {
-	Sprint(a ...interface{}) string
-	Sprintf(format string, a ...interface{}) string
+	Sprint(a ...any) string
+	Sprintf(format string, a ...any) string
 }
 
 func New() TextStyle {
@@ -46,11 +46,11 @@ func New() TextStyle {
 	return s
 }
 
-func (b TextStyle) Sprint(a ...interface{}) string {
+func (b TextStyle) Sprint(a ...any) string {
 	return b.Style.Sprint(a...)
 }
 
-func (b TextStyle) Sprintf(format string, a ...interface{}) string {
+func (b TextStyle) Sprintf(format string, a ...any) string {
 	return b.Style.Sprintf(format, a...)
 }
 

pkg/gui/types/keybindings.go

@@ -5,7 +5,7 @@ import (
 	"github.com/jesseduffield/lazygit/pkg/gui/style"
 )
 
-type Key interface{} // FIXME: find out how to get `gocui.Key | rune`
+type Key any // FIXME: find out how to get `gocui.Key | rune`
 
 // Binding - a keybinding mapping a key and modifier to a handler. The keypress
 // is only handled if the given view has focus, or handled globally if the view

pkg/gui/view_helpers.go

@@ -29,13 +29,10 @@ func (gui *Gui) linesToReadFromCmdTask(v *gocui.View) tasks.LinesToRead {
 	// scrollbar go to its minimum height, so that the scrollbar thumb doesn't
 	// change size as you scroll down.
 	minScrollbarHeight := 1
-	linesToReadForAccurateScrollbar := height*(height-1)/minScrollbarHeight + oy
-
-	// However, cap it at some arbitrary max limit, so that we don't get
-	// performance problems for huge monitors or tiny font sizes
-	if linesToReadForAccurateScrollbar > 5000 {
-		linesToReadForAccurateScrollbar = 5000
-	}
+	linesToReadForAccurateScrollbar := min(
+		// However, cap it at some arbitrary max limit, so that we don't get
+		// performance problems for huge monitors or tiny font sizes
+		height*(height-1)/minScrollbarHeight+oy, 5000)
 
 	return tasks.LinesToRead{
 		Total:               linesToReadForAccurateScrollbar,

pkg/i18n/i18n.go

@@ -5,6 +5,7 @@ import (
 	"encoding/json"
 	"fmt"
 	"io/fs"
+	"slices"
 	"strings"
 
 	"dario.cat/mergo"
@@ -37,10 +38,8 @@ func NewTranslationSetFromConfig(log *logrus.Entry, configLanguage string) (*Tra
 		return EnglishTranslationSet(), nil
 	}
 
-	for _, key := range languageCodes {
-		if key == configLanguage {
-			return newTranslationSet(log, configLanguage)
-		}
+	if slices.Contains(languageCodes, configLanguage) {
+		return newTranslationSet(log, configLanguage)
 	}
 
 	// Configuring a language that we don't have a translation for *is* an

pkg/integration/components/runner.go

@@ -15,7 +15,7 @@ import (
 
 type RunTestArgs struct {
 	Tests           []*IntegrationTest
-	Logf            func(format string, formatArgs ...interface{})
+	Logf            func(format string, formatArgs ...any)
 	RunCmd          func(cmd *exec.Cmd) (int, error)
 	TestWrapper     func(test *IntegrationTest, f func() error)
 	Sandbox         bool

pkg/jsonschema/generate_config_docs.go

@@ -114,7 +114,7 @@ func setComment(yamlNode *yaml.Node, description string) {
 		"\n")
 }
 
-func (n *Node) MarshalYAML() (interface{}, error) {
+func (n *Node) MarshalYAML() (any, error) {
 	node := yaml.Node{
 		Kind: yaml.MappingNode,
 	}

pkg/tasks/tasks_test.go

@@ -117,12 +117,10 @@ func TestNewCmdTask(t *testing.T) {
 
 	fn := manager.NewCmdTask(start, "prefix\n", LinesToRead{20, -1, nil}, onDone)
 	wg := sync.WaitGroup{}
-	wg.Add(1)
-	go func() {
+	wg.Go(func() {
 		time.Sleep(100 * time.Millisecond)
 		close(stop)
-		wg.Done()
-	}()
+	})
 	_ = fn(TaskOpts{Stop: stop, InitialContentLoaded: func() { task.Done() }})
 
 	wg.Wait()
@@ -252,12 +250,10 @@ func TestNewCmdTaskRefresh(t *testing.T) {
 
 		fn := manager.NewCmdTask(start, "", s.linesToRead, func() {})
 		wg := sync.WaitGroup{}
-		wg.Add(1)
-		go func() {
+		wg.Go(func() {
 			time.Sleep(100 * time.Millisecond)
 			close(stop)
-			wg.Done()
-		}()
+		})
 		_ = fn(TaskOpts{Stop: stop, InitialContentLoaded: func() { task.Done() }})
 
 		wg.Wait()

pkg/utils/slice.go

@@ -51,10 +51,8 @@ func PrevIntInCycle(sl []int, current int) int {
 
 func StringArraysOverlap(strArrA []string, strArrB []string) bool {
 	for _, first := range strArrA {
-		for _, second := range strArrB {
-			if first == second {
-				return true
-			}
+		if slices.Contains(strArrB, first) {
+			return true
 		}
 	}
 

pkg/utils/template.go

@@ -6,7 +6,7 @@ import (
 	"text/template"
 )
 
-func ResolveTemplate(templateStr string, object interface{}, funcs template.FuncMap) (string, error) {
+func ResolveTemplate(templateStr string, object any, funcs template.FuncMap) (string, error) {
 	tmpl, err := template.New("template").Funcs(funcs).Option("missingkey=error").Parse(templateStr)
 	if err != nil {
 		return "", err

pkg/utils/utils.go

@@ -30,7 +30,7 @@ func SortRange(x int, y int) (int, int) {
 	return y, x
 }
 
-func AsJson(i interface{}) string {
+func AsJson(i any) string {
 	bytes, _ := json.MarshalIndent(i, "", "    ")
 	return string(bytes)
 }