convert to factory function, add options support

README.md

@@ -6,20 +6,31 @@
 
 ```
  |
-  -- config.developent.json
-  -- config.integration.json
-  -- config.json
+ |-- bar
+   |-- config.json
+ |-- config.developent.json
+ |-- config.integration.json
+ |-- config.json
 ```
 
 ```js
-const requireJson = require('qewd-require-json');
+const requireJsonFactory = require('qewd-require-json');
+const requireJson = requireJsonFactory();
 
+// basic
 const config = requireJson('./config.json') // config.json loaded
 
+// pass version via NODE_ENV
 process.env.NODE_ENV = 'development';
-const config = requireJson('./config.json') // config.development.json loaded
+const config = requireJson('./config.json') // config.development.json is loaded
 
+// pass version via TEST_ENV
 process.env.NODE_ENV = 'staging';
 process.env.TEST_ENV = 'integration';
-const config = requireJson('./config.json') // config.integration.json loaded
+const config = requireJson('./config.json') // config.integration.json is loaded
+
+// overwrite cwd via options
+const options = { cwd: '/path/to/bar' }
+const requireJson = requireJsonFactory(options);
+const config = requireJson('./config.json') // config.json from bar folder is loaded
 ```

lib/index.js

@@ -3,27 +3,31 @@
 const path = require('path');
 const fs = require('fs');
 
-module.exports = function (modulePath) {
-  const absoluteModulePath = path.join(process.cwd(), modulePath);
-  const nodeEnv = (process.env.NODE_ENV || '').toLowerCase();
-  const testEnv = (process.env.TEST_ENV || '').toLowerCase();
+module.exports = (options = {}) => {
+  const cwd = options.cwd || '';
 
-  const dirname = path.dirname(absoluteModulePath);
-  const basename = path.basename(absoluteModulePath, '.json');
+  return (modulePath) => {
+    const absoluteModulePath = path.join(cwd || process.cwd(), modulePath);
+    const nodeEnv = (process.env.NODE_ENV || '').toLowerCase();
+    const testEnv = (process.env.TEST_ENV || '').toLowerCase();
 
-  let newAbsoluteModulePath;
+    const dirname = path.dirname(absoluteModulePath);
+    const basename = path.basename(absoluteModulePath, '.json');
 
-  if (testEnv) {
-    newAbsoluteModulePath = `${dirname}/${basename}.${testEnv}.json`;
-  } else if (nodeEnv) {
-    newAbsoluteModulePath = `${dirname}/${basename}.${nodeEnv}.json`;
-  }
+    let newAbsoluteModulePath;
 
-  try {
-    fs.accessSync(newAbsoluteModulePath);
-  } catch (err) {
-    newAbsoluteModulePath = absoluteModulePath;
-  }
+    if (testEnv) {
+      newAbsoluteModulePath = `${dirname}/${basename}.${testEnv}.json`;
+    } else if (nodeEnv) {
+      newAbsoluteModulePath = `${dirname}/${basename}.${nodeEnv}.json`;
+    }
 
-  return require(newAbsoluteModulePath);
+    try {
+      fs.accessSync(newAbsoluteModulePath);
+    } catch (err) {
+      newAbsoluteModulePath = absoluteModulePath;
+    }
+
+    return require(newAbsoluteModulePath);
+  };
 };

spec/fixtures/bar/config.json

@@ -0,0 +1,3 @@
+{
+  "value": "bar"
+}

spec/unit/index.spec.js

@@ -1,12 +1,18 @@
 'use strict';
 
 const path = require('path');
-const requireJson = require('../..');
+const requireJsonFactory = require('../..');
 
 describe('qewd-require-json', () => {
+  let requireJson;
+
   beforeAll(() => {
-    const fixturesDir = path.join(process.cwd(), 'spec/fixtures');
-    process.chdir(fixturesDir);
+    const cwd = path.join(process.cwd(), 'spec/fixtures/foo');
+    process.chdir(cwd);
+  });
+
+  beforeEach(() => {
+    requireJson = requireJsonFactory();
   });
 
   afterEach(() => {
@@ -79,4 +85,19 @@ describe('qewd-require-json', () => {
 
     expect(actual).toEqual(expected);
   });
+
+  it('should return config when options.cwd', () => {
+    const expected = {
+      value: 'bar'
+    };
+
+    const options = {
+      cwd: path.join(process.cwd(), '../bar')
+    };
+    requireJson = requireJsonFactory(options);
+
+    const actual = requireJson('./config.json');
+
+    expect(actual).toEqual(expected);
+  });
 });