webpack/lib/EnvironmentPlugin.js at master · codeinvain/webpack · GitHub

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MIT License http://www.opensource.org/licenses/mit-license.php

Author Simen Brekken @simenbrekken

var DefinePlugin = require("./DefinePlugin");

function EnvironmentPlugin(keys) {

this.keys = Array.isArray(keys) ? keys : Array.prototype.slice.call(arguments);

}

module.exports = EnvironmentPlugin;

EnvironmentPlugin.prototype.apply = function(compiler) {

compiler.apply(new DefinePlugin(this.keys.reduce(function(definitions, key) {

var value = process.env[key];

if(value === undefined) {

compiler.plugin("this-compilation", function(compilation) {

var error = new Error(key + " environment variable is undefined.");

error.name = "EnvVariableNotDefinedError";

compilation.warnings.push(error);

});

}

definitions["process.env." + key] = value ? JSON.stringify(value) : "undefined";

return definitions;

}, {})));

};