33 lines
776 B
JavaScript
33 lines
776 B
JavaScript
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'use strict';
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var fs = require('fs');
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var debug = require('debug')('xsenv');
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var VError = require('verror');
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module.exports = loadEnv;
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function loadEnv(jsonFile) {
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jsonFile = jsonFile || 'default-env.json';
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if (!fs.existsSync(jsonFile)) {
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return;
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}
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debug('Loading environment from %s', jsonFile);
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try {
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var json = JSON.parse(fs.readFileSync(jsonFile, 'utf8'));
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} catch (err) {
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throw new VError(err, 'Could not parse %s', jsonFile);
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}
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for (var key in json) {
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if (key in process.env) {
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continue; // do not change existing env vars
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}
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var val = json[key];
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// env vars hold only strings
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if (typeof val === 'object') {
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process.env[key] = JSON.stringify(val);
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} else {
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process.env[key] = val + '';
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}
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}
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}
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