Fix build process on Windows (MetaMask#182)

Co-authored-by: Whymarrh Whitby <[email protected]>

docs/.vuepress/config.js

@@ -1,4 +1,5 @@
 module.exports = (_ctx) => ({
+  sourceDir: 'docs',
   dest: 'docs/dist',
 
   locales: {

package.json

@@ -3,8 +3,8 @@
   "description": "MetaMask documentation.",
   "scripts": {
     "dev": "yarn start",
-    "start": "node -r dotenv/config node_modules/.bin/vuepress dev docs",
-    "build": "node -r dotenv/config node_modules/.bin/vuepress build docs",
+    "start": "node scripts/build.js dev",
+    "build": "node scripts/build.js build",
     "lint": "prettier docs/guide/*.md docs/snippets/*",
     "lint:fix": "yarn lint --write",
     "view-info": "vuepress view-info docs",

scripts/build.js

@@ -0,0 +1,19 @@
+require('dotenv').config()
+
+const { dev, build } = require('vuepress')
+const config = require('../docs/.vuepress/config')()
+
+const command = process.argv[2]
+
+switch (command) {
+  case 'build':
+    build(config)
+    return
+
+  case 'dev':
+    dev(config)
+    return
+
+  default:
+    throw new Error(`Unrecognized command "${command}".`)
+}