plumbing/object: move difftree to object package

- To avoid ciclic dependency errors, we move all the difftree files to object package.
- Added Diff method to Tree object.

1 files changed, 0 insertions, 61 deletions

diff --git a/plumbing/difftree/change_adaptor.go b/plumbing/difftree/change_adaptor.go
deleted file mode 100644
index edc20b3..0000000
--- a/plumbing/difftree/change_adaptor.go
+++ /dev/null
@@ -1,61 +0,0 @@
-package difftree
-
-// The folowing functions transform changes types form the merkletrie
-// package to changes types from this package.
-
-import (
-	"fmt"
-
-	"srcd.works/go-git.v4/plumbing/object"
-	"srcd.works/go-git.v4/utils/merkletrie"
-	"srcd.works/go-git.v4/utils/merkletrie/noder"
-)
-
-func newChange(c merkletrie.Change) (*Change, error) {
-	ret := &Change{}
-
-	var err error
-	if ret.From, err = newChangeEntry(c.From); err != nil {
-		return nil, fmt.Errorf("From field: ", err)
-	}
-
-	if ret.To, err = newChangeEntry(c.To); err != nil {
-		return nil, fmt.Errorf("To field: ", err)
-	}
-
-	return ret, nil
-}
-
-func newChangeEntry(p noder.Path) (ChangeEntry, error) {
-	if p == nil {
-		return empty, nil
-	}
-
-	asTreeNoder, ok := p.Last().(*treeNoder)
-	if !ok {
-		return ChangeEntry{}, fmt.Errorf("cannot transform non-TreeNoders")
-	}
-
-	return ChangeEntry{
-		Name: p.String(),
-		Tree: asTreeNoder.parent,
-		TreeEntry: object.TreeEntry{
-			Name: asTreeNoder.name,
-			Mode: asTreeNoder.mode,
-			Hash: asTreeNoder.hash,
-		},
-	}, nil
-}
-
-func newChanges(src merkletrie.Changes) (Changes, error) {
-	ret := make(Changes, len(src))
-	var err error
-	for i, e := range src {
-		ret[i], err = newChange(e)
-		if err != nil {
-			return nil, fmt.Errorf("change #%d: %s", err)
-		}
-	}
-
-	return ret, nil
-}