feat: add .haf extension by default (#30)

spec/get-store-path.spec.ts

@@ -10,13 +10,13 @@ const describeIfUnix = isWindows ? describe.skip : describe;
 
 const splitKey = isWindows ? '\\' : '/';
 
-describe('get-config-path', () => {
+describe('get-store-path', () => {
   describe('extension', () => {
     describe('when absent', () => {
-      it('should skip extension', () => {
+      it('should add .haf extension', () => {
         const path = getStorePath('pop');
 
-        const index = path.split(splitKey).lastIndexOf('pop');
+        const index = path.split(splitKey).lastIndexOf('pop.haf');
 
         expect(index).toBeGreaterThanOrEqual(0);
       });
@@ -47,7 +47,7 @@ describe('get-config-path', () => {
         it('should respect CONFIG_DIR', () => {
           const path = getStorePath('pop');
 
-          expect(path).toEqual('/home/config_dir/pop');
+          expect(path).toEqual('/home/config_dir/pop.haf');
         });
       });
 
@@ -63,15 +63,15 @@ describe('get-config-path', () => {
         it('should respect XDG_CONFIG_HOME', () => {
           const path = getStorePath('pop');
 
-          expect(path).toEqual('/home/xdg_config_home/pop');
+          expect(path).toEqual('/home/xdg_config_home/pop.haf');
         });
       });
 
       describe('when fallback', () => {
         const spy = jest.spyOn(os, 'homedir');
 
         beforeEach(() => {
-          spy.mockReturnValue('/Users/anda');
+          spy.mockReturnValue('/Users/pop');
         });
 
         afterEach(() => {
@@ -81,7 +81,7 @@ describe('get-config-path', () => {
         it('should put under ~/.config', () => {
           const path = getStorePath('pop');
 
-          expect(path).toEqual('/Users/anda/.config/pop');
+          expect(path).toEqual('/Users/pop/.config/pop.haf');
         });
       });
     });
@@ -98,7 +98,7 @@ describe('get-config-path', () => {
       it('should deal with WINDOWS', () => {
         const path = getStorePath('pop');
 
-        expect(path).toEqual('C:\\Users\\Pop\\ApplicationData\\pop');
+        expect(path).toEqual('C:\\Users\\Pop\\ApplicationData\\pop.haf');
       });
     });
   });

src/get-store-path.ts

@@ -1,16 +1,14 @@
 import path from 'path';
 import os from 'os';
 
-export const getStorePath = (name: string, extension?: string): string => {
-  if (extension) {
-    name += `.${extension}`;
-  }
+export const getStorePath = (name: string, extension = 'haf'): string => {
+  const fileName = `${name}.${extension}`;
 
-  const confDir =
+  const storeDir =
     process.env['CONFIG_DIR'] ||
     process.env['XDG_CONFIG_HOME'] ||
     (os.platform() === 'win32' && process.env['LOCALAPPDATA']) ||
     path.join(os.homedir(), '.config');
 
-  return path.join(confDir, name);
+  return path.join(storeDir, fileName);
 };