refactor: rm bool param detectFilesystem in `InitIgnoreList` (#2843)

pkg/executor/build.go

@@ -101,7 +101,7 @@ func newStageBuilder(args *dockerfile.BuildArgs, opts *config.KanikoOptions, sta
 		return nil, err
 	}
 
-	err = util.InitIgnoreList(true)
+	err = util.InitIgnoreList()
 	if err != nil {
 		return nil, errors.Wrap(err, "failed to initialize ignore list")
 	}

pkg/util/fs_util.go

@@ -143,7 +143,7 @@ func GetFSFromImage(root string, img v1.Image, extract ExtractFunction) ([]strin
 func GetFSFromLayers(root string, layers []v1.Layer, opts ...FSOpt) ([]string, error) {
 	volumes = []string{}
 	cfg := new(FSConfig)
-	if err := InitIgnoreList(true); err != nil {
+	if err := InitIgnoreList(); err != nil {
 		return nil, errors.Wrap(err, "initializing filesystem ignore list")
 	}
 	logrus.Debugf("Ignore list: %v", ignorelist)
@@ -1032,14 +1032,12 @@ func createParentDirectory(path string) error {
 // InitIgnoreList will initialize the ignore list using:
 // - defaultIgnoreList
 // - mounted paths via DetectFilesystemIgnoreList()
-func InitIgnoreList(detectFilesystem bool) error {
+func InitIgnoreList() error {
 	logrus.Trace("Initializing ignore list")
 	ignorelist = append([]IgnoreListEntry{}, defaultIgnoreList...)
 
-	if detectFilesystem {
+	if err := DetectFilesystemIgnoreList(config.MountInfoPath); err != nil {
-		if err := DetectFilesystemIgnoreList(config.MountInfoPath); err != nil {
+		return errors.Wrap(err, "checking filesystem mount paths for ignore list")
-			return errors.Wrap(err, "checking filesystem mount paths for ignore list")
-		}
 	}
 
 	return nil

pkg/util/fs_util_test.go

@@ -1502,7 +1502,7 @@ func TestInitIgnoreList(t *testing.T) {
 	original := append([]IgnoreListEntry{}, ignorelist...)
 	defer func() { ignorelist = original }()
 
-	err = InitIgnoreList(true)
+	err = InitIgnoreList()
 	if err != nil {
 		t.Fatal(err)
 	}