New: simple csv formatter

package.json

@@ -56,5 +56,8 @@
     "mocha": "^6.1.4",
     "nyc": "^14.1.1",
     "semantic-release": "^15.13.19"
+  },
+  "dependencies": {
+    "winston": "^3.2.1"
   }
 }

src/Format.js

@@ -0,0 +1,14 @@
+import { format } from 'winston';
+
+export default function CSVFormatter(fields, options={}){
+    const delim = options.delimiter || ';';
+    return format.printf(logObject => {
+        const data = fields.map(key => {
+            const value = info[key];
+
+            return value === undefined ? '' : value;
+        });
+
+        return data.join(delim);
+    });
+}

src/index.js

@@ -0,0 +1,2 @@
+import CSVFormatter from './CSVFormatter';
+export default CSVFormatter;