move plumbing from top level package to plumbing (#183)

* plumbing: rename Object -> EncodedObject.

* plumbing/storer: rename ObjectStorer -> EncodedObjectStorer.

* move difftree to plumbing/difftree.

* move diff -> utils/diff

* make Object/Tag/Blob/Tree/Commit/File depend on storer.

* Object and its implementations now depend only on
  storer.EncodedObjectStorer, not git.Repository.
* Tests are decoupled accordingly.

* move Object/Commit/File/Tag/Tree to plumbing/object.

* move Object/Commit/File/Tag/Tree to plumbing/object.
* move checkClose to utils/ioutil.

* move RevListObjects to plumbing/revlist.Objects.

* move DiffTree to plumbing/difftree package.

* rename files with plural nouns to singular

* plumbing/object: add GetBlob/GetCommit/GetTag/GetTree.

1 files changed, 22 insertions, 22 deletions

diff --git a/plumbing/storer/object_test.go b/plumbing/storer/object_test.go
index a0a7755..6bdd25c 100644
--- a/plumbing/storer/object_test.go
+++ b/plumbing/storer/object_test.go
@@ -11,14 +11,14 @@ import (
 func Test(t *testing.T) { TestingT(t) }
 
 type ObjectSuite struct {
-	Objects []plumbing.Object
+	Objects []plumbing.EncodedObject
 	Hash    []plumbing.Hash
 }
 
 var _ = Suite(&ObjectSuite{})
 
 func (s *ObjectSuite) SetUpSuite(c *C) {
-	s.Objects = []plumbing.Object{
+	s.Objects = []plumbing.EncodedObject{
 		s.buildObject([]byte("foo")),
 		s.buildObject([]byte("bar")),
 	}
@@ -29,7 +29,7 @@ func (s *ObjectSuite) SetUpSuite(c *C) {
 }
 
 func (s *ObjectSuite) TestMultiObjectIterNext(c *C) {
-	expected := []plumbing.Object{
+	expected := []plumbing.EncodedObject{
 		&plumbing.MemoryObject{},
 		&plumbing.MemoryObject{},
 		&plumbing.MemoryObject{},
@@ -38,14 +38,14 @@ func (s *ObjectSuite) TestMultiObjectIterNext(c *C) {
 		&plumbing.MemoryObject{},
 	}
 
-	iter := NewMultiObjectIter([]ObjectIter{
-		NewObjectSliceIter(expected[0:2]),
-		NewObjectSliceIter(expected[2:4]),
-		NewObjectSliceIter(expected[4:5]),
+	iter := NewMultiEncodedObjectIter([]EncodedObjectIter{
+		NewEncodedObjectSliceIter(expected[0:2]),
+		NewEncodedObjectSliceIter(expected[2:4]),
+		NewEncodedObjectSliceIter(expected[4:5]),
 	})
 
 	var i int
-	iter.ForEach(func(o plumbing.Object) error {
+	iter.ForEach(func(o plumbing.EncodedObject) error {
 		c.Assert(o, Equals, expected[i])
 		i++
 		return nil
@@ -54,7 +54,7 @@ func (s *ObjectSuite) TestMultiObjectIterNext(c *C) {
 	iter.Close()
 }
 
-func (s *ObjectSuite) buildObject(content []byte) plumbing.Object {
+func (s *ObjectSuite) buildObject(content []byte) plumbing.EncodedObject {
 	o := &plumbing.MemoryObject{}
 	o.Write(content)
 
@@ -65,8 +65,8 @@ func (s *ObjectSuite) TestObjectLookupIter(c *C) {
 	var count int
 
 	storage := &MockObjectStorage{s.Objects}
-	i := NewObjectLookupIter(storage, plumbing.CommitObject, s.Hash)
-	err := i.ForEach(func(o plumbing.Object) error {
+	i := NewEncodedObjectLookupIter(storage, plumbing.CommitObject, s.Hash)
+	err := i.ForEach(func(o plumbing.EncodedObject) error {
 		c.Assert(o, NotNil)
 		c.Assert(o.Hash().String(), Equals, s.Hash[count].String())
 		count++
@@ -80,8 +80,8 @@ func (s *ObjectSuite) TestObjectLookupIter(c *C) {
 func (s *ObjectSuite) TestObjectSliceIter(c *C) {
 	var count int
 
-	i := NewObjectSliceIter(s.Objects)
-	err := i.ForEach(func(o plumbing.Object) error {
+	i := NewEncodedObjectSliceIter(s.Objects)
+	err := i.ForEach(func(o plumbing.EncodedObject) error {
 		c.Assert(o, NotNil)
 		c.Assert(o.Hash().String(), Equals, s.Hash[count].String())
 		count++
@@ -94,10 +94,10 @@ func (s *ObjectSuite) TestObjectSliceIter(c *C) {
 }
 
 func (s *ObjectSuite) TestObjectSliceIterStop(c *C) {
-	i := NewObjectSliceIter(s.Objects)
+	i := NewEncodedObjectSliceIter(s.Objects)
 
 	var count = 0
-	err := i.ForEach(func(o plumbing.Object) error {
+	err := i.ForEach(func(o plumbing.EncodedObject) error {
 		c.Assert(o, NotNil)
 		c.Assert(o.Hash().String(), Equals, s.Hash[count].String())
 		count++
@@ -109,11 +109,11 @@ func (s *ObjectSuite) TestObjectSliceIterStop(c *C) {
 }
 
 func (s *ObjectSuite) TestObjectSliceIterError(c *C) {
-	i := NewObjectSliceIter([]plumbing.Object{
+	i := NewEncodedObjectSliceIter([]plumbing.EncodedObject{
 		s.buildObject([]byte("foo")),
 	})
 
-	err := i.ForEach(func(plumbing.Object) error {
+	err := i.ForEach(func(plumbing.EncodedObject) error {
 		return fmt.Errorf("a random error")
 	})
 
@@ -121,18 +121,18 @@ func (s *ObjectSuite) TestObjectSliceIterError(c *C) {
 }
 
 type MockObjectStorage struct {
-	db []plumbing.Object
+	db []plumbing.EncodedObject
 }
 
-func (o *MockObjectStorage) NewObject() plumbing.Object {
+func (o *MockObjectStorage) NewEncodedObject() plumbing.EncodedObject {
 	return nil
 }
 
-func (o *MockObjectStorage) SetObject(obj plumbing.Object) (plumbing.Hash, error) {
+func (o *MockObjectStorage) SetEncodedObject(obj plumbing.EncodedObject) (plumbing.Hash, error) {
 	return plumbing.ZeroHash, nil
 }
 
-func (o *MockObjectStorage) Object(t plumbing.ObjectType, h plumbing.Hash) (plumbing.Object, error) {
+func (o *MockObjectStorage) EncodedObject(t plumbing.ObjectType, h plumbing.Hash) (plumbing.EncodedObject, error) {
 	for _, o := range o.db {
 		if o.Hash() == h {
 			return o, nil
@@ -141,7 +141,7 @@ func (o *MockObjectStorage) Object(t plumbing.ObjectType, h plumbing.Hash) (plum
 	return nil, plumbing.ErrObjectNotFound
 }
 
-func (o *MockObjectStorage) IterObjects(t plumbing.ObjectType) (ObjectIter, error) {
+func (o *MockObjectStorage) IterEncodedObjects(t plumbing.ObjectType) (EncodedObjectIter, error) {
 	return nil, nil
 }