react app

react-app/node_modules/envify/visitors.js

@@ -0,0 +1,49 @@
+var Syntax = require('jstransform').Syntax
+var utils = require('jstransform/src/utils')
+
+function create(envs) {
+  var args  = [].concat(envs[0]._ || []).concat(envs[1]._ || [])
+  var purge = args.indexOf('purge') !== -1
+
+  function visitProcessEnv(traverse, node, path, state) {
+    var key = node.property.name || node.property.value
+
+    for (var i = 0; i < envs.length; i++) {
+      var value = envs[i][key]
+      if (value !== undefined) {
+        replaceEnv(node, state, value)
+        return false
+      }
+    }
+
+    if (purge) {
+      replaceEnv(node, state, undefined)
+    }
+
+    return false
+  }
+
+  function replaceEnv(node, state, value) {
+    utils.catchup(node.range[0], state)
+    utils.append(JSON.stringify(value), state)
+    utils.move(node.range[1], state)
+  }
+
+  visitProcessEnv.test = function(node, path, state) {
+    return (
+      node.type === Syntax.MemberExpression
+      && !(path[0].type === Syntax.AssignmentExpression && path[0].left === node)
+      && node.property.type === (node.computed ? Syntax.Literal : Syntax.Identifier)
+      && node.object.computed === false
+      && node.object.type === Syntax.MemberExpression
+      && node.object.object.type === Syntax.Identifier
+      && node.object.object.name === 'process'
+      && node.object.property.type === Syntax.Identifier
+      && node.object.property.name === 'env'
+    )
+  }
+
+  return [visitProcessEnv]
+}
+
+module.exports = create