Make Resolve(nil) return map of top-level objects, fixes #20

Author: sameer

commit.go

@@ -71,6 +71,14 @@ func (pi *PersonInfo) tree(name string, depth int) []string {
 }
 
 func (pi *PersonInfo) resolve(p []string) (interface{}, []string, error) {
+	if p == nil {
+		return map[string]interface{}{
+			"name":  pi.Name,
+			"email": pi.Email,
+			"date":  pi.Date + " " + pi.Timezone,
+		}, nil, nil
+	}
+
 	switch p[0] {
 	case "name":
 		return pi.Name, p[1:], nil
@@ -157,6 +165,18 @@ func (c *Commit) RawData() []byte {
 }
 
 func (c *Commit) Resolve(path []string) (interface{}, []string, error) {
+	if path == nil {
+		return map[string]interface{}{
+			"parents":   c.Parents,
+			"author":    c.Author,
+			"committer": c.Committer,
+			"signature": c.Sig.Text,
+			"message":   c.Message,
+			"tree":      &node.Link{Cid: c.GitTree},
+			"mergetag":  c.MergeTag,
+		}, nil, nil
+	}
+
 	if len(path) == 0 {
 		return nil, nil, fmt.Errorf("zero length path")
 	}
@@ -260,6 +280,15 @@ func (c *Commit) GitSha() []byte {
 }
 
 func (t *MergeTag) resolve(path []string) (interface{}, []string, error) {
+	if path == nil {
+		return map[string]interface{}{
+			"object": &node.Link{Cid: t.Object},
+			"tag":    t.Tag,
+			"tagger": t.Tagger,
+			"text":   t.Text,
+			"type":   t.Type,
+		}, nil, nil
+	}
 	if len(path) == 0 {
 		return nil, nil, fmt.Errorf("zero length path")
 	}

tag.go

@@ -64,6 +64,15 @@ func (t *Tag) RawData() []byte {
 }
 
 func (t *Tag) Resolve(path []string) (interface{}, []string, error) {
+	if path == nil {
+		return map[string]interface{}{
+			"object":  &node.Link{Cid: t.Object},
+			"type":    t.Type,
+			"tagger":  t.Tagger,
+			"message": t.Message,
+			"tag":     t.Tag,
+		}, nil, nil
+	}
 	if len(path) == 0 {
 		return nil, nil, fmt.Errorf("zero length path")
 	}

tree.go

@@ -112,6 +112,10 @@ func (t *Tree) RawData() []byte {
 }
 
 func (t *Tree) Resolve(p []string) (interface{}, []string, error) {
+	if p == nil {
+		return t.entries, nil, nil
+	}
+
 	e, ok := t.entries[p[0]]
 	if !ok {
 		return nil, nil, errors.New("no such link")