restore backup and add opencode support

dist/nls-guilloche/esm2015/nls/services/history.service.js

@@ -0,0 +1,62 @@
+/**
+ * @fileoverview added by tsickle
+ * @suppress {checkTypes} checked by tsc
+ */
+/**
+ * Copyright (C) 2018 Michael Czechowski <mail@dailysh.it>
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; version 2.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc., 51
+ * Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+import { Injectable } from '@angular/core';
+export class NlsHistoryService {
+    constructor() {
+        this.history = [];
+    }
+    /**
+     * @param {?} graphs
+     * @param {?} config
+     * @return {?}
+     */
+    save(graphs, config) {
+        this.history.push({
+            date: new Date(),
+            graphs: graphs,
+            config: config,
+            hash: this.hash(graphs)
+        });
+    }
+    /**
+     * @param {?} graphs
+     * @return {?}
+     */
+    hash(graphs) {
+        return btoa(JSON.stringify(graphs));
+    }
+    /**
+     * @return {?}
+     */
+    list() {
+        return this.history;
+    }
+}
+NlsHistoryService.decorators = [
+    { type: Injectable },
+];
+/** @nocollapse */
+NlsHistoryService.ctorParameters = () => [];
+function NlsHistoryService_tsickle_Closure_declarations() {
+    /** @type {?} */
+    NlsHistoryService.prototype.history;
+}
+
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