Add api lfs locks struct (#78)

* Add locks struct

* Add missing delete request

gitea/lfs_lock.go

@@ -0,0 +1,65 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package gitea
+
+import (
+	"time"
+)
+
+// LFSLock represent a lock
+// for use with the locks API.
+type LFSLock struct {
+	ID       string        `json:"id"`
+	Path     string        `json:"path"`
+	LockedAt time.Time     `json:"locked_at"`
+	Owner    *LFSLockOwner `json:"owner"`
+}
+
+// LFSLockOwner represent a lock owner
+// for use with the locks API.
+type LFSLockOwner struct {
+	Name string `json:"name"`
+}
+
+// LFSLockRequest contains the path of the lock to create
+// https://github.com/git-lfs/git-lfs/blob/master/docs/api/locking.md#create-lock
+type LFSLockRequest struct {
+	Path string `json:"path"`
+}
+
+// LFSLockResponse represent a lock created
+// https://github.com/git-lfs/git-lfs/blob/master/docs/api/locking.md#create-lock
+type LFSLockResponse struct {
+	Lock *LFSLock `json:"lock"`
+}
+
+// LFSLockList represent a list of lock requested
+// https://github.com/git-lfs/git-lfs/blob/master/docs/api/locking.md#list-locks
+type LFSLockList struct {
+	Locks []*LFSLock `json:"locks"`
+	Next  string     `json:"next_cursor,omitempty"`
+}
+
+// LFSLockListVerify represent a list of lock verification requested
+// https://github.com/git-lfs/git-lfs/blob/master/docs/api/locking.md#list-locks-for-verification
+type LFSLockListVerify struct {
+	Ours   []*LFSLock `json:"ours"`
+	Theirs []*LFSLock `json:"theirs"`
+	Next   string     `json:"next_cursor,omitempty"`
+}
+
+// LFSLockError contains information on the error that occurs
+type LFSLockError struct {
+	Message       string   `json:"message"`
+	Lock          *LFSLock `json:"lock,omitempty"`
+	Documentation string   `json:"documentation_url,omitempty"`
+	RequestID     string   `json:"request_id,omitempty"`
+}
+
+// LFSLockDeleteRequest contains params of a delete request
+// https://github.com/git-lfs/git-lfs/blob/master/docs/api/locking.md#delete-lock
+type LFSLockDeleteRequest struct {
+	Force bool `json:"force"`
+}