Remove UntarBundleWithRequiredFilePermission (#62)

fsutil/filesystem.go

@@ -134,51 +134,6 @@ func UntarBundle(destination string, source string) error {
 	return nil
 }
 
-// UntarBundleWithRequiredFilePermission performs the same operation as UntarBundle,
-// but enforces `requiredFilePerm` for all files in the bundle.
-func UntarBundleWithRequiredFilePermission(destination string, source string, requiredFilePerm fs.FileMode) error {
-	f, err := os.Open(source)
-	if err != nil {
-		return fmt.Errorf("opening source: %w", err)
-	}
-	defer f.Close()
-
-	gzr, err := gzip.NewReader(f)
-	if err != nil {
-		return fmt.Errorf("creating gzip reader from %s: %w", source, err)
-	}
-	defer gzr.Close()
-
-	tr := tar.NewReader(gzr)
-	for {
-		header, err := tr.Next()
-		if err == io.EOF {
-			break
-		}
-		if err != nil {
-			return fmt.Errorf("reading tar file: %w", err)
-		}
-
-		if err := sanitizeExtractPath(filepath.Dir(destination), header.Name); err != nil {
-			return fmt.Errorf("checking filename: %w", err)
-		}
-
-		destPath := filepath.Join(filepath.Dir(destination), header.Name)
-		info := header.FileInfo()
-		if info.IsDir() {
-			if err = os.MkdirAll(destPath, info.Mode()); err != nil {
-				return fmt.Errorf("creating directory %s for tar file: %w", destPath, err)
-			}
-			continue
-		}
-
-		if err := writeBundleFile(destPath, requiredFilePerm, tr); err != nil {
-			return fmt.Errorf("writing file: %w", err)
-		}
-	}
-	return nil
-}
-
 func writeBundleFile(destPath string, perm fs.FileMode, srcReader io.Reader) error {
 	file, err := os.OpenFile(destPath, os.O_CREATE|os.O_TRUNC|os.O_WRONLY, perm)
 	if err != nil {

fsutil/filesystem_test.go

@@ -52,43 +52,6 @@ func TestUntarBundle(t *testing.T) {
 	require.Equal(t, nestedFileMode, nestedFileInfo.Mode())
 }
 
-func TestUntarBundleWithRequiredFilePermission(t *testing.T) {
-	t.Parallel()
-
-	// Create tarball contents
-	originalDir := t.TempDir()
-	topLevelFile := filepath.Join(originalDir, "testfile.txt")
-	require.NoError(t, os.WriteFile(topLevelFile, []byte("test1"), 0655))
-	internalDir := filepath.Join(originalDir, "some", "path", "to")
-	require.NoError(t, os.MkdirAll(internalDir, 0744))
-	nestedFile := filepath.Join(internalDir, "anotherfile.txt")
-	require.NoError(t, os.WriteFile(nestedFile, []byte("test2"), 0744))
-
-	// Create test tarball
-	tarballDir := t.TempDir()
-	tarballFile := filepath.Join(tarballDir, "test.gz")
-	createTar(t, tarballFile, originalDir)
-
-	// Confirm we can untar the tarball successfully
-	newDir := t.TempDir()
-	var requiredFileMode fs.FileMode = 0755
-	require.NoError(t, UntarBundleWithRequiredFilePermission(filepath.Join(newDir, "anything"), tarballFile, requiredFileMode))
-
-	// Confirm the tarball has the contents we expect
-	newTopLevelFile := filepath.Join(newDir, filepath.Base(topLevelFile))
-	require.FileExists(t, newTopLevelFile)
-	newNestedFile := filepath.Join(newDir, "some", "path", "to", filepath.Base(nestedFile))
-	require.FileExists(t, newNestedFile)
-
-	// Require that both files have the required permission 0755
-	topLevelFileInfo, err := os.Stat(newTopLevelFile)
-	require.NoError(t, err)
-	require.Equal(t, requiredFileMode, topLevelFileInfo.Mode())
-	nestedFileInfo, err := os.Stat(newNestedFile)
-	require.NoError(t, err)
-	require.Equal(t, requiredFileMode, nestedFileInfo.Mode())
-}
-
 // createTar is a helper to create a test tar
 func createTar(t *testing.T, createLocation string, sourceDir string) {
 	tarballFile, err := os.Create(createLocation)