Fix user search on gitea api.

gitea/gitea.go

@@ -69,16 +69,21 @@ func (g *Gitea) Repo(user string, repo string) (*Repo, error) {
 
 // UserID check users exists and return user id
 func (r *Repo) UserID() (int, error) {
-	userexist, err := r.client.SearchUsers(r.user, 1)
+	userexist, err := r.client.SearchUsers(r.user, 0)
 	if err != nil {
 		return -1, err
 	}
 
+	uid := -2
 	emptyuser := []*gitea.User{}
 	if reflect.DeepEqual(userexist, emptyuser) == true {
-		return -2, err
+		return uid, err
 	}
-	uid := int(userexist[0].ID)
+  for i := 0; i < len(userexist); i++ {
+	  if userexist[i].UserName == r.user {
+	    uid = int(userexist[i].ID)
+	  }
+  }
 	return uid, nil
 }