Refactor action to typescript (#226)

* Refactor to typescript (config part)

* Refactor to typescript (convert extensions, minor fixes)

* Refactor to typescript (move from `action` to `dist`)

* Re-enable integrity-check for dist index.js

* Fix all tests and lints

* fix parsing major versions

* Test patch level to be digits only

* debug

* debug

* uncache

* manual compile

* debug

* debug

* Debug

* Build lib - doh

* remove diff check

* Make kubernetes workflow manual

* Properly generate 3 digit for simple major tags

* Remove ts-ignore

* re-enable cache

src/model/platform.test.ts

@@ -0,0 +1,37 @@
+import Platform from './platform';
+
+describe('Platform', () => {
+  describe('default', () => {
+    it('does not throw', () => {
+      expect(() => Platform.default).not.toThrow();
+    });
+
+    it('returns a string', () => {
+      expect(typeof Platform.default).toStrictEqual('string');
+    });
+
+    it('returns a platform', () => {
+      expect(Object.values(Platform.types)).toContain(Platform.default);
+    });
+  });
+
+  describe('isWindows', () => {
+    it('returns true for windows', () => {
+      expect(Platform.isWindows(Platform.types.StandaloneWindows64)).toStrictEqual(true);
+    });
+
+    it('returns false for MacOS', () => {
+      expect(Platform.isWindows(Platform.types.StandaloneOSX)).toStrictEqual(false);
+    });
+  });
+
+  describe('isAndroid', () => {
+    it('returns true for Android', () => {
+      expect(Platform.isAndroid(Platform.types.Android)).toStrictEqual(true);
+    });
+
+    it('returns false for Windows', () => {
+      expect(Platform.isAndroid(Platform.types.StandaloneWindows64)).toStrictEqual(false);
+    });
+  });
+});