feat(options): added ability to pass options to scripts (#138)

.all-contributorsrc

@@ -295,6 +295,16 @@
         "code",
         "test"
       ]
+    },
+    {
+      "login": "kwelch",
+      "name": "Kyle Welch",
+      "avatar_url": "https://avatars0.githubusercontent.com/u/1295580?v=3",
+      "profile": "http://www.krwelch.com",
+      "contributions": [
+        "code",
+        "test"
+      ]
     }
   ]
 }

README.md

@@ -13,7 +13,7 @@ All the benefits of npm scripts without the cost of a bloated package.json and l
 [![downloads][downloads-badge]][npm-stat]
 [![MIT License][license-badge]][LICENSE]
 
-[![All Contributors](https://img.shields.io/badge/all_contributors-29-orange.svg?style=flat-square)](#contributors)
+[![All Contributors](https://img.shields.io/badge/all_contributors-30-orange.svg?style=flat-square)](#contributors)
 [![PRs Welcome][prs-badge]][prs]
 [![Donate][donate-badge]][donate]
 [![Code of Conduct][coc-badge]][coc]
@@ -438,7 +438,7 @@ Thanks goes to these people ([emoji key][emojis]):
 | [<img src="https://avatars.githubusercontent.com/u/1972567?v=3" width="100px;"/><br /><sub>Tommy</sub>](http://www.tommyleunen.com)<br />[🐛](https://github.com/kentcdodds/p-s/issues?q=author%3Atleunen) [💻](https://github.com/kentcdodds/p-s/commits?author=tleunen) [⚠️](https://github.com/kentcdodds/p-s/commits?author=tleunen) 👀 | [<img src="https://avatars.githubusercontent.com/u/509946?v=3" width="100px;"/><br /><sub>Jayson Harshbarger</sub>](http://www.hypercubed.com)<br />💡 👀 | [<img src="https://avatars.githubusercontent.com/u/1355481?v=3" width="100px;"/><br /><sub>JD Isaacks</sub>](http://www.jisaacks.com)<br />[💻](https://github.com/kentcdodds/p-s/commits?author=jisaacks) [⚠️](https://github.com/kentcdodds/p-s/commits?author=jisaacks) | [<img src="https://avatars.githubusercontent.com/u/924465?v=3" width="100px;"/><br /><sub>Christopher Hiller</sub>](https://boneskull.com)<br />👀 | [<img src="https://avatars.githubusercontent.com/u/1834413?v=3" width="100px;"/><br /><sub>Robin Malfait</sub>](https://robinmalfait.com)<br />💡 | [<img src="https://avatars.githubusercontent.com/u/622118?v=3" width="100px;"/><br /><sub>Eric McCormick</sub>](https://ericmccormick.io)<br />👀 [📖](https://github.com/kentcdodds/p-s/commits?author=edm00se) | [<img src="https://avatars.githubusercontent.com/u/1913805?v=3" width="100px;"/><br /><sub>Sam Verschueren</sub>](https://twitter.com/SamVerschueren)<br />👀 |
 | [<img src="https://avatars.githubusercontent.com/u/1155589?v=3" width="100px;"/><br /><sub>Sorin Muntean</sub>](https://github.com/sxn)<br />[💻](https://github.com/kentcdodds/p-s/commits?author=sxn) [⚠️](https://github.com/kentcdodds/p-s/commits?author=sxn) [📖](https://github.com/kentcdodds/p-s/commits?author=sxn) | [<img src="https://avatars.githubusercontent.com/u/1970063?v=3" width="100px;"/><br /><sub>Keith Gunn</sub>](https://github.com/gunnx)<br />[🐛](https://github.com/kentcdodds/p-s/issues?q=author%3Agunnx) [💻](https://github.com/kentcdodds/p-s/commits?author=gunnx) [⚠️](https://github.com/kentcdodds/p-s/commits?author=gunnx) | [<img src="https://avatars.githubusercontent.com/u/1019478?v=3" width="100px;"/><br /><sub>Joe Martella</sub>](http://martellaj.github.io)<br />[🐛](https://github.com/kentcdodds/p-s/issues?q=author%3Amartellaj) [💻](https://github.com/kentcdodds/p-s/commits?author=martellaj) [⚠️](https://github.com/kentcdodds/p-s/commits?author=martellaj) | [<img src="https://avatars.githubusercontent.com/u/1887854?v=3" width="100px;"/><br /><sub>Martin Segado</sub>](https://github.com/msegado)<br />[📖](https://github.com/kentcdodds/p-s/commits?author=msegado) | [<img src="https://avatars.githubusercontent.com/u/36491?v=3" width="100px;"/><br /><sub>Bram Borggreve</sub>](http://colmena.io/)<br />[🐛](https://github.com/kentcdodds/p-s/issues?q=author%3Abeeman) [💻](https://github.com/kentcdodds/p-s/commits?author=beeman) | [<img src="https://avatars.githubusercontent.com/u/86454?v=3" width="100px;"/><br /><sub>Elijah Manor</sub>](http://elijahmanor.com)<br />📹 | [<img src="https://avatars.githubusercontent.com/u/10691183?v=3" width="100px;"/><br /><sub>Ragu Ramaswamy</sub>](https://github.com/rrag)<br />[💻](https://github.com/kentcdodds/p-s/commits?author=rrag) [⚠️](https://github.com/kentcdodds/p-s/commits?author=rrag) [🐛](https://github.com/kentcdodds/p-s/issues?q=author%3Arrag) |
 | [<img src="https://avatars.githubusercontent.com/u/2915616?v=3" width="100px;"/><br /><sub>Erik Fox</sub>](http://www.erikfox.co/)<br />[🐛](https://github.com/kentcdodds/p-s/issues?q=author%3Aerikfox) | [<img src="https://avatars.githubusercontent.com/u/5351262?v=3" width="100px;"/><br /><sub>Aditya Pratap Singh</sub>](http://blog.adityapsingh.com)<br />👀 | [<img src="https://avatars.githubusercontent.com/u/7687132?v=3" width="100px;"/><br /><sub>bumbleblym</sub>](https://github.com/bumbleblym)<br />[💻](https://github.com/kentcdodds/p-s/commits?author=bumbleblym) [📖](https://github.com/kentcdodds/p-s/commits?author=bumbleblym) | [<img src="https://avatars.githubusercontent.com/u/7091543?v=3" width="100px;"/><br /><sub>Islam Attrash</sub>](https://twitter.com/IslamAttrash)<br />[💻](https://github.com/kentcdodds/p-s/commits?author=Attrash-Islam) | [<img src="https://avatars.githubusercontent.com/u/7215306?v=3" width="100px;"/><br /><sub>JasonSooter</sub>](https://github.com/JasonSooter)<br />[📖](https://github.com/kentcdodds/p-s/commits?author=JasonSooter) | [<img src="https://avatars1.githubusercontent.com/u/116871?v=3" width="100px;"/><br /><sub>Nate Cavanaugh</sub>](http://alterform.com)<br />[💻](https://github.com/kentcdodds/p-s/commits?author=natecavanaugh) | [<img src="https://avatars2.githubusercontent.com/u/3534924?v=3" width="100px;"/><br /><sub>Wissam Abirached</sub>](https://designingforscale.com)<br />[💻](https://github.com/kentcdodds/p-s/commits?author=wabirached) [⚠️](https://github.com/kentcdodds/p-s/commits?author=wabirached) |
-| [<img src="https://avatars1.githubusercontent.com/u/12592677?v=3" width="100px;"/><br /><sub>Paweł Mikołajczyk</sub>](https://github.com/Miklet)<br />[💻](https://github.com/kentcdodds/p-s/commits?author=Miklet) [⚠️](https://github.com/kentcdodds/p-s/commits?author=Miklet) |
+| [<img src="https://avatars1.githubusercontent.com/u/12592677?v=3" width="100px;"/><br /><sub>Paweł Mikołajczyk</sub>](https://github.com/Miklet)<br />[💻](https://github.com/kentcdodds/p-s/commits?author=Miklet) [⚠️](https://github.com/kentcdodds/p-s/commits?author=Miklet) | [<img src="https://avatars0.githubusercontent.com/u/1295580?v=3" width="100px;"/><br /><sub>Kyle Welch</sub>](http://www.krwelch.com)<br />[💻](https://github.com/kentcdodds/p-s/commits?author=kwelch) [⚠️](https://github.com/kentcdodds/p-s/commits?author=kwelch) |
 <!-- ALL-CONTRIBUTORS-LIST:END -->
 
 This project follows the [all-contributors][all-contributors] specification.

src/index.js

@@ -17,7 +17,19 @@ function runPackageScripts({scriptConfig, scripts, options = {}}) {
   if (scripts.length === 0) {
     scripts = ['default']
   }
-  const scriptNames = arrify(scripts)
+  let scriptNames = arrify(scripts)
+
+  const separatorIndex = scriptNames.indexOf('--')
+  if (separatorIndex >= 0) {
+    const additionalOptions = scriptNames.slice(separatorIndex + 1).join(' ')
+    if (separatorIndex === 0) {
+      scriptNames = [`default ${additionalOptions}`]
+    } else {
+      scriptNames.splice(separatorIndex)
+      const lastIndex = scriptNames.length - 1
+      scriptNames[lastIndex] = `${scriptNames[lastIndex]} ${additionalOptions}`
+    }
+  }
 
   return scriptNames.reduce(
     (res, input) => {

src/index.test.js

@@ -26,6 +26,24 @@ test('spawn called with the expected command', () => {
   })
 })
 
+test('spawn called and appends options', () => {
+  const testCommand = 'jest'
+  return testSpawnCall({test: testCommand}, ['test', '--', '--watch']).then((
+    {command},
+  ) => {
+    expect(command).toBe(`${testCommand} --watch`)
+  })
+})
+
+test('spawn called and appends options to default', () => {
+  const testCommand = 'jest'
+  return testSpawnCall({default: testCommand}, ['--', '--watch']).then((
+    {command},
+  ) => {
+    expect(command).toBe(`${testCommand} --watch`)
+  })
+})
+
 test('spawn.on called with "close" and "error"', () => {
   return testSpawnCallWithDefaults().then(({onSpy}) => {
     expect(onSpy.calledTwice)