'use strict';
var stream = require('stream'); var util = require('util'); var replace = require('./replace');
var jsonExtRe = /.json$/;
module.exports = function(rootEnv) {
rootEnv = rootEnv || process.env; return function (file, trOpts) { if (jsonExtRe.test(file)) { return stream.PassThrough(); } var envs = trOpts ? [rootEnv, trOpts] : [rootEnv]; return new LooseEnvify(envs); };
};
function LooseEnvify(envs) {
stream.Transform.call(this); this._data = ''; this._envs = envs;
} util.inherits(LooseEnvify, stream.Transform);
LooseEnvify.prototype._transform = function(buf, enc, cb) {
this._data += buf; cb();
};
LooseEnvify.prototype._flush = function(cb) {
var replaced = replace(this._data, this._envs); this.push(replaced); cb();
};