added "@types/node" to "devDependencies"

package-lock.json

@@ -4,6 +4,12 @@
     "lockfileVersion": 1,
     "requires": true,
     "dependencies": {
+        "@types/node": {
+            "version": "10.0.2",
+            "resolved": "https://registry.npmjs.org/@types/node/-/node-10.0.2.tgz",
+            "integrity": "sha512-DPbG0qQ5kdvXBK0jGdv1yd8vGN7hwH8sB2Q1z1kGaxtCnXkSxYJ009VccGlcgknYoLeMTYu4TTzOditDJMdP2Q==",
+            "dev": true
+        },
         "balanced-match": {
             "version": "1.0.0",
             "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.0.tgz",

package.json

@@ -16,13 +16,16 @@
         "pg": "^7.4.1",
         "pg-copy-streams": "^1.2.0"
     },
+    "devDependencies": {
+        "@types/node": "^10.0.2",
+        "tape": "^4.8.0"
+    },
     "scripts": {
+        "compile_test": "tsc --outDir ./build --module commonjs ./src/*.ts && node ./build/Main.js",
+        "build": "tsc",
         "start": "node src/Main.js",
         "test": "node test/Main.test.js"
     },
-    "devDependencies": {
-        "tape": "^4.8.0"
-    },
     "keywords": [
         "database migration",
         "copy",

src/Logger.ts

@@ -18,9 +18,7 @@
  *
  * @author Anatoly Khaytovich <anatolyuss@gmail.com>
  */
-'use strict';
-
-const fs = require('fs');
+import fs from 'fs';
 
 /**
  * Outputs given log.
@@ -32,10 +30,10 @@ const fs = require('fs');
  * @param {String}     tableLogPath
  * @param {Boolean}    isErrorLog
  *
- * @returns {undefined}
+ * @returns {void}
  */
-module.exports = (self, log, tableLogPath, isErrorLog) => {
-    const buffer = Buffer.from(log + '\n\n', self._encoding);
+export default (self: Conversion, log: string, tableLogPath: string, isErrorLog: boolean): void => {
+    const buffer: Buffer = Buffer.from(log + '\n\n', self._encoding);
 
     if (!isErrorLog) {
         console.log(log);

tsconfig.json

@@ -0,0 +1,10 @@
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "target": "es5",
+        "sourceMap": true
+    },
+    "exclude": [
+        "node_modules"
+    ]
+}