pkg/cdi: unexport spec.Write(), NewSpec().

This should reduce confusion about how generates Specs
should be written (cache.WriteSpec() vs. spec.Write())
and also reduce the possibility/temptation for users to
bypass the registry/cache when interacting with Specs.

Signed-off-by: Krisztian Litkey <krisztian.litkey@intel.com>

Author: klihub

pkg/cdi/cache.go

@@ -294,12 +294,12 @@ func (c *Cache) WriteSpec(raw *cdi.Spec, name string) error {
 		path += defaultSpecExt
 	}
 
-	spec, err = NewSpec(raw, path, prio)
+	spec, err = newSpec(raw, path, prio)
 	if err != nil {
 		return err
 	}
 
-	return spec.Write(true)
+	return spec.write(true)
 }
 
 // RemoveSpec removes a Spec with the given name from the highest

pkg/cdi/spec.go

@@ -84,19 +84,19 @@ func ReadSpec(path string, priority int) (*Spec, error) {
 		return nil, errors.Errorf("failed to parse CDI Spec %q, no Spec data", path)
 	}
 
-	spec, err := NewSpec(raw, path, priority)
+	spec, err := newSpec(raw, path, priority)
 	if err != nil {
 		return nil, err
 	}
 
 	return spec, nil
 }
 
-// NewSpec creates a new Spec from the given CDI Spec data. The
+// newSpec creates a new Spec from the given CDI Spec data. The
 // Spec is marked as loaded from the given path with the given
-// priority. If Spec data validation fails NewSpec returns a nil
+// priority. If Spec data validation fails newSpec returns a nil
 // Spec and an error.
-func NewSpec(raw *cdi.Spec, path string, priority int) (*Spec, error) {
+func newSpec(raw *cdi.Spec, path string, priority int) (*Spec, error) {
 	err := validateSpec(raw)
 	if err != nil {
 		return nil, err
@@ -122,8 +122,8 @@ func NewSpec(raw *cdi.Spec, path string, priority int) (*Spec, error) {
 }
 
 // Write the CDI Spec to the file associated with it during instantiation
-// by NewSpec() or ReadSpec().
-func (s *Spec) Write(overwrite bool) error {
+// by newSpec() or ReadSpec().
+func (s *Spec) write(overwrite bool) error {
 	var (
 		data []byte
 		dir  string
@@ -257,7 +257,7 @@ func ParseSpec(data []byte) (*cdi.Spec, error) {
 
 // SetSpecValidator sets a CDI Spec validator function. This function
 // is used for extra CDI Spec content validation whenever a Spec file
-// loaded (using ReadSpec() or NewSpec()) or written (Spec.Write()).
+// loaded (using ReadSpec() or written (using WriteSpec()).
 func SetSpecValidator(fn func(*cdi.Spec) error) {
 	specValidator = fn
 }

pkg/cdi/spec_test.go

@@ -246,7 +246,7 @@ devices:
 			}
 			require.NoError(t, err)
 
-			spec, err = NewSpec(raw, tc.name, 0)
+			spec, err = newSpec(raw, tc.name, 0)
 			if tc.invalid || tc.schemaFail {
 				require.Error(t, err)
 				require.Nil(t, spec)
@@ -367,22 +367,22 @@ devices:
 			err = yaml.Unmarshal([]byte(tc.data), raw)
 			require.NoError(t, err)
 
-			spec, err = NewSpec(raw, filepath.Join(dir, tc.name), 0)
+			spec, err = newSpec(raw, filepath.Join(dir, tc.name), 0)
 			if tc.invalid {
-				require.Error(t, err, "NewSpec with invalid data")
-				require.Nil(t, spec, "NewSpec with invalid data")
+				require.Error(t, err, "newSpec with invalid data")
+				require.Nil(t, spec, "newSpec with invalid data")
 				return
 			}
 
 			require.NoError(t, err)
 			require.NotNil(t, spec)
 
-			err = spec.Write(true)
+			err = spec.write(true)
 			require.NoError(t, err)
 			_, err = os.Stat(spec.GetPath())
 			require.NoError(t, err, "spec.Write destination file")
 
-			err = spec.Write(false)
+			err = spec.write(false)
 			require.Error(t, err)
 
 			chk, err = ReadSpec(spec.GetPath(), spec.GetPriority())