Add generator script

Author: mfix22

.gitignore

@@ -1,2 +1,3 @@
 node_modules
 coverage
+package-lock.json

README.md

@@ -45,6 +45,13 @@ Each of these types can be installed individually using there 'Package Name' sho
 | USState        | `graphql-types-us-state`    | `US`, `CA`, `DE` `...` |
 
 ## Contributing
-Contributions are more than welcome! This repo is not meant to be owned by me (and if there is a more suitable owner please [let me know](https://github.com/mfix22/gnt/issues)), but rather by the commuity. 
+Contributions are more than welcome! This repo is not meant to be owned by me (and if there is a more suitable owner please [let me know](https://github.com/mfix22/gnt/issues)), but rather by the commuity.
+
+### Creating a new type
+First run:
+```shell
+$ npm run generate -- '<your type name>'
+```
+to get started. A folder with `index.js`, `index.spec.js` (your test), and a `package.json` will be created for you!
 
 If you have any idea for new types, please submit an issue or PR!

package-lock.json

@@ -3,7 +3,8 @@
     "lint": "xo",
     "test": "jest",
     "link": "lerna bootstrap",
-    "publish": "npm run lint && npm test && lerna publish"
+    "publish": "npm run lint && npm test && lerna publish",
+    "generate": "node ./scripts/generate"
   },
   "keywords": [
     "graphql",
@@ -16,17 +17,23 @@
   "license": "MIT",
   "devDependencies": {
     "eslint-config-prettier": "^2.4.0",
+    "fs-extra": "^4.0.2",
     "jest": "^21.0.2",
     "lerna": "^2.1.2",
+    "log-symbols": "^2.1.0",
     "prettier": "^1.6.1",
+    "to-slug-case": "^1.0.0",
     "xo": "^0.18.2"
   },
   "xo": {
     "extends": "prettier",
     "env": [
       "node",
       "jest"
-    ]
+    ],
+    "rules": {
+      "unicorn/explicit-length-check": "off"
+    }
   },
   "repository": {
     "type": "git",

package.json

@@ -0,0 +1,68 @@
+#!/usr/bin/env node
+const fs = require('fs-extra')
+const slug = require('to-slug-case')
+const logSymbols = require('log-symbols');
+
+const args = process.argv.slice(2)
+
+if (!args.length) throw new Error('`type` is required. Try `npm run generate -- <your type name>`')
+
+const type = args.join(' ')
+
+const path = `./packages/${slug(type)}`
+
+fs.mkdirSync(path)
+
+const cap = s => s[0].toUpperCase() + s.slice(1).toLowerCase()
+
+const pkgJsonTemplate = {
+  name: `graphql-types-${slug(type)}`,
+  version: '0.0.0',
+  description: `GraphQL Normalized ${args.map(cap).join(' ')} Type`,
+  main: 'index.js',
+  keywords: [
+    'graphql',
+    'normalized',
+    'types',
+    'scalar',
+    'gin-n-tonic',
+    type
+  ],
+  license: 'MIT',
+  dependencies: {
+  },
+  peerDependencies: {
+    'graphql': '*'
+  }
+}
+
+const indexTemplate =
+`const { GraphQLScalarType } = require('graphql')
+
+const parse = v => {
+  // Feel free to handle this however you would like!
+}
+
+module.exports = new GraphQLScalarType({
+  name: '${args.map(cap).join('')}',
+  description: '',
+  serialize: parse,
+  parseValue: parse,
+  parseLiteral(ast) {
+    return parse(ast.value);
+  }
+})`
+
+const indexSpecTemplate =
+`const type = require('.')
+
+test('${type}', () => {
+  expect(dl._scalarConfig.parseValue())
+})`
+
+
+fs.writeFileSync(`${path}/index.js`, indexTemplate)
+fs.writeFileSync(`${path}/index.spec.js`, indexSpecTemplate)
+fs.writeJsonSync(`${path}/package.json`, pkgJsonTemplate, {spaces: 2})
+
+console.log('\n', logSymbols.success, args.map(cap).join(''), 'type created!', '\n')