Refactor to typescript (#158)

* Refactor to typescript

* Fix platform and workflow

* Fix workflow and platform

* Update husky and image-tag

* Use 'yarn lint-staged' instead of 'npx lint-staged'

src/model/unity-version-parser.ts

@@ -0,0 +1,28 @@
+import fs from 'fs';
+import path from 'path';
+
+const UnityVersionParser = {
+  get versionPattern() {
+    return /20\d{2}\.\d\.\w{3,4}|3/;
+  },
+
+  parse(projectVersionTxt) {
+    const matches = projectVersionTxt.match(UnityVersionParser.versionPattern);
+    if (!matches || matches.length === 0) {
+      throw new Error(`Failed to parse version from "${projectVersionTxt}".`);
+    }
+    return matches[0];
+  },
+
+  read(projectPath) {
+    const filePath = path.join(projectPath, 'ProjectSettings', 'ProjectVersion.txt');
+    if (!fs.existsSync(filePath)) {
+      throw new Error(
+        `Project settings file not found at "${filePath}". Have you correctly set the projectPath?`,
+      );
+    }
+    return UnityVersionParser.parse(fs.readFileSync(filePath, 'utf8'));
+  },
+};
+
+export default UnityVersionParser;