Parse multi-stmts with doble quoted strings, ExporterEngine: shaSum fixes

lib.js

@@ -144,12 +144,18 @@ class ExporterEngine {
     }
 
     shaSum(sql) {
+        if (!sql) return null;
         return shajs('sha256')
             .update(JSON.stringify(sql))
             .digest('hex');
     }
 
     setShaSum(type, schema, name, shaSum) {
+        if (!shaSum) {
+            this.deleteShaSum(type, schema, name);
+            return;
+        }
+
         const shaSums = this.shaSums;
         if (!shaSums[schema])
             shaSums[schema] = {};

myvc-push.js

@@ -561,6 +561,11 @@ const tokens = {
         end: '\'',
         escape: char => char == '\'' || char == '\\'
     },
+    quotedString: {
+        start: '"',
+        end: '"',
+        escape: char => char == '"' || char == '\\'
+    },
     id: {
         start: '`',
         end: '`',

package.json

@@ -1,6 +1,6 @@
 {
   "name": "myvc",
-  "version": "1.3.6",
+  "version": "1.3.7",
   "author": "Verdnatura Levante SL",
   "description": "MySQL Version Control",
   "license": "GPL-3.0",