34 lines
979 B
JavaScript
34 lines
979 B
JavaScript
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/* eslint no-undefined: 0 */
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'use strict';
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const format = require('./format');
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const { MESSAGE } = require('triple-beam');
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const jsonStringify = require('safe-stable-stringify');
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/*
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* function simple (info)
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* Returns a new instance of the simple format TransformStream
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* which writes a simple representation of logs.
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*
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* const { level, message, splat, ...rest } = info;
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*
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* ${level}: ${message} if rest is empty
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* ${level}: ${message} ${JSON.stringify(rest)} otherwise
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*/
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module.exports = format(info => {
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const stringifiedRest = jsonStringify(Object.assign({}, info, {
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level: undefined,
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message: undefined,
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splat: undefined
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}));
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const padding = info.padding && info.padding[info.level] || '';
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if (stringifiedRest !== '{}') {
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info[MESSAGE] = `${info.level}:${padding} ${info.message} ${stringifiedRest}`;
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} else {
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info[MESSAGE] = `${info.level}:${padding} ${info.message}`;
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}
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return info;
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});
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