Merge pull request #5 from sparkartgroup/json-env

Add support for JSON format

README.md

@@ -39,6 +39,7 @@ or
 These are the currently accepted environment file formats. If any other formats are desired please create an issue.
 - `key=value`
 - `key value`
+- Key/value pairs as JSON
 
 ## Why
 
@@ -53,3 +54,7 @@ Because sometimes its just too cumbersome passing lots of environment variables
 ## Special Thanks
 
 Special thanks to [`cross-env`](https://github.com/kentcdodds/cross-env) for inspiration (use's the same `cross-spawn` lib underneath too).
+
+## Contributors
+
+- Eric Lanehart

lib/index.js

@@ -17,7 +17,9 @@ function EnvCmd (args) {
   }
 
   // Parse the env file string
-  const env = ParseEnvString(file)
+  const env = path.extname(parsedArgs.envFilePath).toLowerCase() === '.json'
+    ? Object.assign({}, process.env, require(parsedArgs.envFilePath))
+    : ParseEnvString(file)
 
   // Execute the command with the given environment variables
   if (parsedArgs.command) {

package.json

@@ -24,6 +24,9 @@
     "run"
   ],
   "author": "Todd Bluhm",
+  "contributors": [
+    "Eric Lanehart <eric@pushred.co>"
+  ],
   "license": "MIT",
   "bugs": {
     "url": "https://github.com/toddbluhm/env-cmd/issues"

test/test.js

@@ -20,6 +20,11 @@ const spawnStub = sinon.spy(() => ({
 const lib = proxyquire('../lib', {
   'cross-spawn': {
     spawn: spawnStub
+  },
+  [path.resolve(process.cwd(), 'test/.env.json')]: {
+    BOB: 'COOL',
+    NODE_ENV: 'dev',
+    ANSWER: '42'
   }
 })
 const EnvCmd = lib.EnvCmd
@@ -129,6 +134,26 @@ describe('env-cmd', function () {
     })
   })
 
+  describe('JSON format support', function () {
+    before(function () {
+      this.readFileStub = sinon.stub(fs, 'readFileSync')
+      proxyquire.noCallThru()
+    })
+    after(function () {
+      spawnStub.reset()
+      this.readFileStub.restore()
+      proxyquire.callThru()
+    })
+    it('should parse env vars from JSON with node module loader if file extension is .json', function () {
+      EnvCmd(['./test/.env.json', 'echo', '$BOB'])
+      assert(spawnStub.args[0][0] === 'echo')
+      assert(spawnStub.args[0][1][0] === '$BOB')
+      assert(spawnStub.args[0][2].env.BOB === 'COOL')
+      assert(spawnStub.args[0][2].env.NODE_ENV === 'dev')
+      assert(spawnStub.args[0][2].env.ANSWER === '42')
+    })
+  })
+
   describe('EnvCmd', function () {
     before(function () {
       this.readFileStub = sinon.stub(fs, 'readFileSync')