Create a NotesCollection for managing notes

As with the others, move these methods into their own namespace.

1 files changed, 121 insertions, 0 deletions

diff --git a/note.go b/note.go
index 3cdd340..a1b15d8 100644
--- a/note.go
+++ b/note.go
@@ -10,6 +10,127 @@ import (
 	"unsafe"
 )
 
+// This object represents the possible operations which can be
+// performed on the collection of notes for a repository.
+type NoteCollection struct {
+	repo *Repository
+}
+
+// Create adds a note for an object
+func (c *NoteCollection) Create(
+	ref string, author, committer *Signature, id *Oid,
+	note string, force bool) (*Oid, error) {
+
+	oid := new(Oid)
+
+	var cref *C.char
+	if ref == "" {
+		cref = nil
+	} else {
+		cref = C.CString(ref)
+		defer C.free(unsafe.Pointer(cref))
+	}
+
+	authorSig, err := author.toC()
+	if err != nil {
+		return nil, err
+	}
+	defer C.git_signature_free(authorSig)
+
+	committerSig, err := committer.toC()
+	if err != nil {
+		return nil, err
+	}
+	defer C.git_signature_free(committerSig)
+
+	cnote := C.CString(note)
+	defer C.free(unsafe.Pointer(cnote))
+
+	runtime.LockOSThread()
+	defer runtime.UnlockOSThread()
+
+	ret := C.git_note_create(
+		oid.toC(), c.repo.ptr, cref, authorSig,
+		committerSig, id.toC(), cnote, cbool(force))
+
+	if ret < 0 {
+		return nil, MakeGitError(ret)
+	}
+	return oid, nil
+}
+
+// Read reads the note for an object
+func (c *NoteCollection) Read(ref string, id *Oid) (*Note, error) {
+	var cref *C.char
+	if ref == "" {
+		cref = nil
+	} else {
+		cref = C.CString(ref)
+		defer C.free(unsafe.Pointer(cref))
+	}
+
+	note := new(Note)
+
+	runtime.LockOSThread()
+	defer runtime.UnlockOSThread()
+
+	if ret := C.git_note_read(&note.ptr, c.repo.ptr, cref, id.toC()); ret < 0 {
+		return nil, MakeGitError(ret)
+	}
+
+	runtime.SetFinalizer(note, (*Note).Free)
+	return note, nil
+}
+
+// Remove removes the note for an object
+func (c *NoteCollection) Remove(ref string, author, committer *Signature, id *Oid) error {
+	var cref *C.char
+	if ref == "" {
+		cref = nil
+	} else {
+		cref = C.CString(ref)
+		defer C.free(unsafe.Pointer(cref))
+	}
+
+	authorSig, err := author.toC()
+	if err != nil {
+		return err
+	}
+	defer C.git_signature_free(authorSig)
+
+	committerSig, err := committer.toC()
+	if err != nil {
+		return err
+	}
+	defer C.git_signature_free(committerSig)
+
+	runtime.LockOSThread()
+	defer runtime.UnlockOSThread()
+
+	ret := C.git_note_remove(c.repo.ptr, cref, authorSig, committerSig, id.toC())
+	if ret < 0 {
+		return MakeGitError(ret)
+	}
+	return nil
+}
+
+// DefaultRef returns the default notes reference for a repository
+func (c *NoteCollection) DefaultRef() (string, error) {
+	buf := C.git_buf{}
+
+	runtime.LockOSThread()
+	defer runtime.UnlockOSThread()
+
+	if ret := C.git_note_default_ref(&buf, c.repo.ptr); ret < 0 {
+		return "", MakeGitError(ret)
+	}
+
+	ret := C.GoString(buf.ptr)
+	C.git_buf_free(&buf)
+
+	return ret, nil
+}
+
 // Note
 type Note struct {
 	ptr *C.git_note