faster startup

pkg/commands/git.go

@@ -54,10 +54,6 @@ func NewGitCommand(log *logrus.Entry, osCommand *oscommands.OSCommand, tr *i18n.
 		pushToCurrent = strings.TrimSpace(output) == "current"
 	}
 
-	if err := verifyInGitRepo(osCommand.RunCommand); err != nil {
-		return nil, err
-	}
-
 	if err := navigateToRepoRootDirectory(os.Stat, os.Chdir); err != nil {
 		return nil, err
 	}
@@ -88,10 +84,6 @@ func NewGitCommand(log *logrus.Entry, osCommand *oscommands.OSCommand, tr *i18n.
 	return gitCommand, nil
 }
 
-func verifyInGitRepo(runCmd func(string, ...interface{}) error) error {
-	return runCmd("git status")
-}
-
 func navigateToRepoRootDirectory(stat func(string) (os.FileInfo, error), chdir func(string) error) error {
 	gitDir := env.GetGitDirEnv()
 	if gitDir != "" {
@@ -120,6 +112,18 @@ func navigateToRepoRootDirectory(stat func(string) (os.FileInfo, error), chdir f
 		if err = chdir(".."); err != nil {
 			return utils.WrapError(err)
 		}
+
+		currentPath, err := os.Getwd()
+		if err != nil {
+			return err
+		}
+
+		atRoot := currentPath == filepath.Dir(currentPath)
+		if atRoot {
+			// we should never really land here: the code that creates GitCommand should
+			// verify we're in a git directory
+			return errors.New("Must open lazygit in a git repository")
+		}
 	}
 }
 
@@ -189,3 +193,7 @@ func findDotGitDir(stat func(string) (os.FileInfo, error), readFile func(filenam
 	}
 	return strings.TrimSpace(strings.TrimPrefix(fileContent, "gitdir: ")), nil
 }
+
+func VerifyInGitRepo(osCommand *oscommands.OSCommand) error {
+	return osCommand.RunCommand("git rev-parse --git-dir")
+}