Created
December 24, 2020 11:28
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NodeJS raw process output JSONifying (processes line-by-line)
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| // Usage: ~$ some-process | node output_jsonify.js | |
| const pump = require('pump'); | |
| const split = require('split2'); | |
| const through = require('through2'); | |
| const dope = msg => ({ | |
| pid: process.pid, | |
| time: new Date().getTime(), | |
| level: /Error/.test(msg) ? 3 : 30, | |
| msg | |
| }); | |
| pump( | |
| process.stdin, | |
| split(), | |
| through((chunk, enc, cb) => { | |
| const msg = chunk.toString(); | |
| // Avoiding stack trace | |
| if (/^\s+/.test(msg) || msg.indexOf('}') !== -1) { | |
| return cb(); | |
| } | |
| console.log(JSON.stringify(dope(msg))); | |
| cb(); | |
| }) | |
| ); |
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