Change the way file statuses are loaded

This makes it so file statuses recived from git no longer get joined
before spliting them again.

pkg/commands/loading_files.go

@@ -24,11 +24,10 @@ func (c *GitCommand) GetStatusFiles(opts GetStatusFileOptions) []*models.File {
 	}
 	untrackedFilesArg := fmt.Sprintf("--untracked-files=%s", untrackedFilesSetting)
 
-	statusOutput, err := c.GitStatus(GitStatusOptions{NoRenames: opts.NoRenames, UntrackedFilesArg: untrackedFilesArg})
+	statusStrings, err := c.GitStatus(GitStatusOptions{NoRenames: opts.NoRenames, UntrackedFilesArg: untrackedFilesArg})
 	if err != nil {
 		c.Log.Error(err)
 	}
-	statusStrings := utils.SplitLines(statusOutput)
 	files := []*models.File{}
 
 	for _, statusString := range statusStrings {
@@ -77,7 +76,7 @@ type GitStatusOptions struct {
 	UntrackedFilesArg string
 }
 
-func (c *GitCommand) GitStatus(opts GitStatusOptions) (string, error) {
+func (c *GitCommand) GitStatus(opts GitStatusOptions) ([]string, error) {
 	noRenamesFlag := ""
 	if opts.NoRenames {
 		noRenamesFlag = "--no-renames"
@@ -85,20 +84,24 @@ func (c *GitCommand) GitStatus(opts GitStatusOptions) (string, error) {
 
 	statusLines, err := c.RunCommandWithOutput("git status %s --porcelain -z %s", opts.UntrackedFilesArg, noRenamesFlag)
 	if err != nil {
-		return "", err
+		return []string{}, err
 	}
 
 	splitLines := strings.Split(statusLines, "\x00")
-	// if a line starts with 'R' then the next line is the original file.
-	for i := 0; i < len(splitLines)-1; i++ {
+	response := []string{}
+
+	for i := 0; i < len(splitLines); i++ {
 		original := splitLines[i]
-		if strings.HasPrefix(original, "R  ") {
-			next := splitLines[i+1]
-			updated := "R  " + next + RENAME_SEPARATOR + strings.TrimPrefix(original, "R  ")
-			splitLines[i] = updated
-			splitLines = append(splitLines[0:i+1], splitLines[i+2:]...)
+		if len(original) < 2 {
+			continue
+		} else if strings.HasPrefix(original, "R  ") {
+			// if a line starts with 'R' then the next line is the original file.
+			next := strings.TrimSpace(splitLines[i+1])
+			original = "R  " + next + RENAME_SEPARATOR + strings.TrimPrefix(original, "R  ")
+			i++
 		}
+		response = append(response, original)
 	}
 
-	return strings.Join(splitLines, "\n"), nil
+	return response, nil
 }

pkg/commands/loading_files_test.go

@@ -31,8 +31,8 @@ func TestGitCommandGetStatusFiles(t *testing.T) {
 			"Several files found",
 			func(cmd string, args ...string) *exec.Cmd {
 				return secureexec.Command(
-					"echo",
-					"MM file1.txt\nA  file3.txt\nAM file2.txt\n?? file4.txt\nUU file5.txt",
+					"printf",
+					`MM file1.txt\0A  file3.txt\0AM file2.txt\0?? file4.txt\0UU file5.txt`,
 				)
 			},
 			func(files []*models.File) {
@@ -106,6 +106,36 @@ func TestGitCommandGetStatusFiles(t *testing.T) {
 					},
 				}
 
+				assert.EqualValues(t, expected, files)
+			},
+		},
+		{
+			"File with new line char",
+			func(cmd string, args ...string) *exec.Cmd {
+				return secureexec.Command(
+					"printf",
+					`MM a\nb.txt`,
+				)
+			},
+			func(files []*models.File) {
+				assert.Len(t, files, 1)
+
+				expected := []*models.File{
+					{
+						Name:                    "a\nb.txt",
+						HasStagedChanges:        true,
+						HasUnstagedChanges:      true,
+						Tracked:                 true,
+						Added:                   false,
+						Deleted:                 false,
+						HasMergeConflicts:       false,
+						HasInlineMergeConflicts: false,
+						DisplayString:           "MM a\nb.txt",
+						Type:                    "other",
+						ShortStatus:             "MM",
+					},
+				}
+
 				assert.EqualValues(t, expected, files)
 			},
 		},

pkg/gui/presentation/files.go

@@ -1,6 +1,8 @@
 package presentation
 
 import (
+	"strings"
+
 	"github.com/fatih/color"
 	"github.com/jesseduffield/lazygit/pkg/commands/models"
 	"github.com/jesseduffield/lazygit/pkg/theme"
@@ -48,6 +50,14 @@ func GetFileLine(hasUnstagedChanges bool, hasStagedChanges bool, name string, di
 		output += restColor.Sprint(" ")
 	}
 
+	name = strings.NewReplacer(
+		"\n", "\\n",
+		"\r", "\\r",
+		"\t", "\\t",
+		"\b", "\\b",
+		"\f", "\\f",
+		"\v", "\\v",
+	).Replace(name)
 	output += restColor.Sprint(name)
 
 	if file != nil && file.IsSubmodule(submoduleConfigs) {