Saya mengerjakan ini tadi malam dan membuat cabang dengan kode yang mengimplementasikan hal di atas. Beri tahu saya jika Anda ingin saya membuat PR di Logform untuk ini.

Berikut adalah file tes yang saya gunakan ...

'use strict';

const winston = require('winston');
const logform = require('logform')
const {SPLAT} = require('triple-beam');


const {createLogger, format, transports} = require('winston');
var logger = createLogger({
    format: format.combine(

        format.splat()
        , format.captureAllMeta()
        ,
        logform.format.printf(info => {

            // return `${info.timestamp} [${info.label}] ${info.level}: ${info.message}`;
            if ((!info.meta.length)) {
                return (`${info.level}: ${info.message}`);

            }
            else {
                return (`${info.level}: ${info.message}\n\t${JSON.stringify(info.meta)}`);

            }
        })
    ),
    transports: [new transports.Console()]
});


let count = 1

logger.log('info', count + '. this is a string I want to splat %s', 'together', {an: 'object'})
count += 1
console.log('---')

logger.log('info', count + '.this is a string followed by an object and an array', {an: 'object'}, ['an', 'array'])
count += 1
console.log('---')

logger.log('info', count + '.this is a string followed by an object and an array', ['an', 'array'], {an: 'object'})
count += 1
console.log('---')


logger.log('info', count + '. string followed by', 'a string')
console.log('---')
count += 1

logger.log('info', count + '. string followed by 2', 'separate', 'strings')
console.log('---')
count += 1

logger.log('info', count + '. string followed by', {an: 'object'})
console.log('---')
count += 1

logger.log('info', count + '. string followed by 2', {an: 'object'}, ['an', 'array'])
console.log('---')
count += 1

logger.log('info', count + '. string with token followed by string %s', 'string')
console.log('---')
count += 1

logger.log('info', count + '. string with token followed by obj %j', {idunno: 'notsure'})
console.log('---')
count += 1

logger.log('info', count + '. string with token followed by string %s and then objects', 'or here', {an: 'object'}, ['i', 'am', 'missed'])
console.log('---')
count += 1

logger.log('info', count + '. string with two tokens %s %s followed by one ', 'string')
console.log('---')
count += 1

logger.log('info', count + '. string with two tokens %s %j followed by one string and one object', 'string', {an: 'object'}, [1,2,3])
count += 1
console.log('---')


logger.info({message: 'just an object', [SPLAT]: {more:'stuff'}})
count += 1
console.log('---')

logger.info(['an','array'])
count += 1
console.log('---')

logger.info(['an','array',{with:'object'}])
count += 1
console.log('---')


logger.log({
    level: 'info',
    message: '%d: The answer to life, the universe and everything',
    splat: [42]
})
count += 1
console.log('---')

logger.log({
    level: 'info',
    message: '%d: The answer to life, the universe and everything',
    splat: [43],
    [Symbol.for('splat')]: [44]
})
count += 1
console.log('---')

logger.log({
    level: 'info',
    message: '%d: The answer to life, the universe and everything'
})
count += 1
console.log('---')

dengan output berikut...

info: 1. this is a string I want to splat together
    [{"an":"object"}]
---
info: 2.this is a string followed by an object and an array
    [{"an":"object"},["an","array"]]
---
info: 3.this is a string followed by an object and an array
    [["an","array"],{"an":"object"}]
---
info: 4. string followed by
    ["a string"]
---
info: 5. string followed by 2
    ["separate","strings"]
---
info: 6. string followed by
    [{"an":"object"}]
---
info: 7. string followed by 2
    [{"an":"object"},["an","array"]]
---
info: 8. string with token followed by string string
---
info: 9. string with token followed by obj {"idunno":"notsure"}
---
info: 10. string with token followed by string or here and then objects
    [{"an":"object"},["i","am","missed"]]
---
info: 11. string with two tokens string %s followed by one
---
info: 12. string with two tokens string {"an":"object"} followed by one string and one object
    [[1,2,3]]
---
info: just an object
    [{"more":"stuff"}]
---
info: an,array
---
info: an,array,[object Object]  // expected... no %j token
---
info: 42: The answer to life, the universe and everything
---
info: 44: The answer to life, the universe and everything
---
info: %d: The answer to life, the universe and everything
---

Menambahkan dukungan ke kode saya untuk info.splat selain info[SPLAT].

Sesuatu seperti ini diperlukan. Pada dasarnya, jika Anda tidak dapat meningkatkan ke v3 tanpa menyentuh pernyataan log yang ada, DAN bisa mendapatkan meta sebagai objek TERPISAH SETELAH interpolasi, maka v3 adalah non-starter untuk sebagian besar pengguna yang keluar. Saya tidak tahu mengapa ada orang yang berpikir bahwa menggabungkan level, pesan, dan meta menjadi satu objek besar adalah ide yang bagus. Sudah matang untuk konflik. info[Symbol.for('splat)] juga tidak dapat diandalkan karena akan menggabungkan nilai interpolasi dan meta bersama-sama. Kami ingin meta TERPISAH.

Jadi saya baru menyadari bahwa menggunakan format.splat() memang menambahkan objek meta ke info, TETAPI hanya jika Anda juga menggunakan interpolasi. Jika Anda tidak menggunakan interpolasi, meta hanya dicampur ke dalam objek info.

Juga saat menggunakan interpolasi dan meta, format.simple() mengeluarkan meta sebagai {meta:{METAOBJ}} bukan hanya {METAOBJ} seperti v2.