51 lines
1.4 KiB
JavaScript
51 lines
1.4 KiB
JavaScript
/*
|
|
MIT License http://www.opensource.org/licenses/mit-license.php
|
|
Authors Simen Brekken @simenbrekken, Einar Löve @einarlove
|
|
*/
|
|
|
|
"use strict";
|
|
|
|
const DefinePlugin = require("./DefinePlugin");
|
|
|
|
class EnvironmentPlugin {
|
|
constructor(keys) {
|
|
if(Array.isArray(keys)) {
|
|
this.keys = keys;
|
|
this.defaultValues = {};
|
|
} else if(keys && typeof keys === "object") {
|
|
this.keys = Object.keys(keys);
|
|
this.defaultValues = keys;
|
|
} else {
|
|
this.keys = Array.prototype.slice.call(arguments);
|
|
this.defaultValues = {};
|
|
}
|
|
}
|
|
|
|
apply(compiler) {
|
|
const definitions = this.keys.reduce((defs, key) => {
|
|
const value = process.env[key] !== undefined ? process.env[key] : this.defaultValues[key];
|
|
|
|
if(value === undefined) {
|
|
compiler.plugin("this-compilation", compilation => {
|
|
const error = new Error(
|
|
`EnvironmentPlugin - ${key} environment variable is undefined.\n\n` +
|
|
"You can pass an object with default values to suppress this warning.\n" +
|
|
"See https://webpack.js.org/plugins/environment-plugin for example."
|
|
);
|
|
|
|
error.name = "EnvVariableNotDefinedError";
|
|
compilation.warnings.push(error);
|
|
});
|
|
}
|
|
|
|
defs[`process.env.${key}`] = typeof value === "undefined" ? "undefined" : JSON.stringify(value);
|
|
|
|
return defs;
|
|
}, {});
|
|
|
|
compiler.apply(new DefinePlugin(definitions));
|
|
}
|
|
}
|
|
|
|
module.exports = EnvironmentPlugin;
|