fix(healthcheck/nonasciifile): no gitattributes

go.mod

@@ -5,7 +5,6 @@ go 1.23.1
 require (
 	github.com/criyle/go-judge v1.8.5
 	github.com/denormal/go-gitignore v0.0.0-20180930084346-ae8ad1d07817
-	github.com/go-git/go-billy/v5 v5.5.0
 	github.com/go-git/go-git/v5 v5.12.0
 	github.com/jinzhu/copier v0.4.0
 	github.com/koding/multiconfig v0.0.0-20171124222453-69c27309b2d7
@@ -28,6 +27,7 @@ require (
 	github.com/fatih/camelcase v1.0.0 // indirect
 	github.com/fatih/structs v1.1.0 // indirect
 	github.com/go-git/gcfg v1.5.1-0.20230307220236-3a3c6141e376 // indirect
+	github.com/go-git/go-billy/v5 v5.5.0 // indirect
 	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
 	github.com/jbenet/go-context v0.0.0-20150711004518-d14ea06fba99 // indirect
 	github.com/kevinburke/ssh_config v1.2.0 // indirect

pkg/healthcheck/nonascii.go

@@ -16,18 +16,27 @@ import (
 // It searches for non-ASCII characters in each file's content and returns a list of paths to files containing non-ASCII characters.
 func getNonAscii(root string) ([]string, error) {
 	var nonAscii []string
-	fs := os.DirFS(".")
-	f, err := fs.Open(".gitattributes")
-	if err != nil {
+	noAttri := false
+	var matcher gitattributes.Matcher
+	_, err := os.Stat(".gitattributes")
+	if os.IsNotExist(err) {
+		noAttri = true
 		return nil, err
 	}
 
-	attribute, err := gitattributes.ReadAttributes(f, nil, true)
-	if err != nil {
-		return nil, err
-	}
+	if !noAttri {
+		fs := os.DirFS(".")
+		f, err := fs.Open(".gitattributes")
+		if err != nil {
+			return nil, err
+		}
 
-	matcher := gitattributes.NewMatcher(attribute)
+		attribute, err := gitattributes.ReadAttributes(f, nil, true)
+		if err != nil {
+			return nil, err
+		}
+		matcher = gitattributes.NewMatcher(attribute)
+	}
 
 	err = filepath.Walk(root, func(path string, info os.FileInfo, err error) error {
 		if err != nil {
@@ -46,14 +55,16 @@ func getNonAscii(root string) ([]string, error) {
 			return nil
 		}
 
-		relPath, err := filepath.Rel(root, path)
-		if err != nil {
-			return err
-		}
-		str := strings.Split(relPath, "/")
-		_, ret := matcher.Match(str, nil)
-		if ret {
-			return nil
+		if !noAttri {
+			relPath, err := filepath.Rel(root, path)
+			if err != nil {
+				return err
+			}
+			str := strings.Split(relPath, "/")
+			_, ret := matcher.Match(str, nil)
+			if ret {
+				return nil
+			}
 		}
 
 		file, err := os.Open(path)