First upload version 0.0.1

node_modules/env-var/lib/accessors/enum.js

@@ -0,0 +1,13 @@
+'use strict'
+
+const asString = require('./string')
+
+module.exports = function asEnum (value, validValues) {
+  const valueString = asString(value)
+
+  if (validValues.indexOf(valueString) < 0) {
+    throw new Error(`should be one of [${validValues.join(', ')}]`)
+  }
+
+  return valueString
+}