feat: automatically consume pino config when using pino@>=8.21.0

.github/workflows/ci.yml

@@ -40,8 +40,14 @@ jobs:
       contents: read
     strategy:
       matrix:
-        node-version: [14, 16, 18]
+        node-version: [14, 16, 18, 20]
         os: [ubuntu-latest]
+        pino-version: [8.20.0, ^8.21.0, ^9.0.0]
+        exclude:
+          - node-version: 14
+            pino-version: ^9.0.0
+          - node-version: 16
+            pino-version: ^9.0.0
     steps:
       - name: Check out repo
         uses: actions/checkout@v4
@@ -62,6 +68,9 @@ jobs:
       - name: Install dependencies
         run: npm i --ignore-scripts
 
+      - name: Install pino ${{ matrix.pino-version }}
+        run: npm i --no-save pino@${{ matrix.pino-version }}
+
       - name: Run tests
         run: npm run ci
 

Readme.md

@@ -240,10 +240,10 @@ The options accepted have keys corresponding to the options described in [CLI Ar
   colorize: colorette.isColorSupported, // --colorize
   colorizeObjects: true, //--colorizeObjects
   crlf: false, // --crlf
-  errorLikeObjectKeys: ['err', 'error'], // --errorLikeObjectKeys
+  errorLikeObjectKeys: ['err', 'error'], // --errorLikeObjectKeys (not required to match custom errorKey with pino >=8.21.0)
   errorProps: '', // --errorProps
   levelFirst: false, // --levelFirst
-  messageKey: 'msg', // --messageKey
+  messageKey: 'msg', // --messageKey (not required with pino >=8.21.0)
   levelKey: 'level', // --levelKey
   messageFormat: false, // --messageFormat
   timestampKey: 'time', // --timestampKey
@@ -253,7 +253,7 @@ The options accepted have keys corresponding to the options described in [CLI Ar
   hideObject: false, // --hideObject
   singleLine: false, // --singleLine
   customColors: 'err:red,info:blue', // --customColors
-  customLevels: 'err:99,info:1', // --customLevels
+  customLevels: 'err:99,info:1', // --customLevels (not required with pino >=8.21.0)
   levelLabel: 'levelLabel', // --levelLabel
   minimumLevel: 'info', // --minimumLevel
   useOnlyCustomProps: true, // --useOnlyCustomProps

index.d.ts

@@ -71,6 +71,8 @@ interface PrettyOptions_ {
   /**
    * The key in the JSON object to use as the highlighted message.
    * @default "msg"
+   *
+   * Not required when used with pino >= 8.21.0
    */
   messageKey?: string;
   /**
@@ -122,6 +124,8 @@ interface PrettyOptions_ {
   /**
    * Define the log keys that are associated with error like objects.
    * @default ["err", "error"]
+   *
+   * Not required to handle custom errorKey when used with pino >= 8.21.0
    */
   errorLikeObjectKeys?: string[];
   /**
@@ -192,6 +196,8 @@ interface PrettyOptions_ {
    *
    * @example ( CSV ) customLevels: 'info:10,some_level:40'
    * @example ( Object ) customLevels: { info: 10, some_level: 40 }
+   *
+   * Not required when used with pino >= 8.21.0
    */
   customLevels?: string|object;
   /**

index.js

@@ -131,8 +131,18 @@ function prettyFactory (options) {
  * @returns {Transform | (Transform & OnUnknown)}
  */
 function build (opts = {}) {
-  const pretty = prettyFactory(opts)
+  let pretty = prettyFactory(opts)
   return abstractTransport(function (source) {
+    source.on('message', function pinoConfigListener (message) {
+      if (!message || message.code !== 'PINO_CONFIG') return
+      Object.assign(opts, {
+        messageKey: message.config.messageKey,
+        errorLikeObjectKeys: Array.from(new Set([...(opts.errorLikeObjectKeys || ERROR_LIKE_KEYS), message.config.errorKey])),
+        customLevels: message.config.levels.values
+      })
+      pretty = prettyFactory(opts)
+      source.off('message', pinoConfigListener)
+    })
     const stream = new Transform({
       objectMode: true,
       autoDestroy: true,

package.json

@@ -55,6 +55,7 @@
     "pino": "^8.0.0",
     "pre-commit": "^1.2.2",
     "rimraf": "^3.0.2",
+    "semver": "^7.6.0",
     "snazzy": "^9.0.0",
     "standard": "^17.0.0",
     "tap": "^16.0.0",

test/basic.test.js

@@ -11,6 +11,7 @@ const path = require('path')
 const rimraf = require('rimraf')
 const { join } = require('path')
 const fs = require('fs')
+const semver = require('semver')
 const pinoPretty = require('..')
 const SonicBoom = require('sonic-boom')
 const _prettyFactory = pinoPretty.prettyFactory
@@ -1074,7 +1075,7 @@ test('basic prettifier tests', (t) => {
   t.test('stream usage', async (t) => {
     t.plan(1)
     const tmpDir = path.join(__dirname, '.tmp_' + Date.now())
-    t.teardown(() => rimraf(tmpDir, noop))
+    t.teardown(() => rimraf.sync(tmpDir))
 
     const destination = join(tmpDir, 'output')
 
@@ -1102,24 +1103,28 @@ test('basic prettifier tests', (t) => {
   t.test('sync option', async (t) => {
     t.plan(1)
     const tmpDir = path.join(__dirname, '.tmp_' + Date.now())
-    t.teardown(() => rimraf(tmpDir, noop))
+    t.teardown(() => rimraf.sync(tmpDir))
 
     const destination = join(tmpDir, 'output')
 
-    const pretty = pinoPretty({
-      singleLine: true,
-      colorize: false,
-      mkdir: true,
-      append: false,
-      sync: true,
-      destination
-    })
-    const log = pino(pretty)
-    log.info({ msg: 'message', extra: { foo: 'bar', number: 42 }, upper: 'foobar' })
+    const log = pino(pino.transport({
+      target: '..',
+      options: {
+        singleLine: true,
+        colorize: false,
+        mkdir: true,
+        append: false,
+        sync: true,
+        destination
+      }
+    }))
+    log.info({ msg: 'message', extra: { foo: 'bar', number: 43 }, upper: 'foobar' })
+
+    await watchFileCreated(destination)
 
     const formatted = fs.readFileSync(destination, 'utf8')
 
-    t.equal(formatted, `[${formattedEpoch}] INFO (${pid}): message {"extra":{"foo":"bar","number":42},"upper":"foobar"}\n`)
+    t.equal(formatted, `[${formattedEpoch}] INFO (${pid}): message {"extra":{"foo":"bar","number":43},"upper":"foobar"}\n`)
   })
 
   t.test('support custom colors object', async (t) => {
@@ -1151,6 +1156,59 @@ test('basic prettifier tests', (t) => {
   t.end()
 })
 
+if (semver.gte(pino.version, '8.21.0')) {
+  test('using pino config', (t) => {
+    t.beforeEach(() => {
+      Date.originalNow = Date.now
+      Date.now = () => epoch
+    })
+    t.afterEach(() => {
+      Date.now = Date.originalNow
+      delete Date.originalNow
+    })
+
+    t.test('can use different message keys', (t) => {
+      t.plan(1)
+      const destination = new Writable({
+        write (formatted, enc, cb) {
+          t.equal(
+            formatted.toString(),
+            `[${formattedEpoch}] INFO (${pid}): baz\n`
+          )
+          cb()
+        }
+      })
+      const pretty = pinoPretty({
+        destination,
+        colorize: false
+      })
+      const log = pino({ messageKey: 'bar' }, pretty)
+      log.info({ bar: 'baz' })
+    })
+
+    t.test('handles customLogLevels', (t) => {
+      t.plan(1)
+      const destination = new Writable({
+        write (formatted, enc, cb) {
+          t.equal(
+            formatted.toString(),
+            `[${formattedEpoch}] TESTCUSTOM (${pid}): test message\n`
+          )
+          cb()
+        }
+      })
+      const pretty = pinoPretty({
+        destination,
+        colorize: false
+      })
+      const log = pino({ customLevels: { testCustom: 35 } }, pretty)
+      log.testCustom('test message')
+    })
+
+    t.end()
+  })
+}
+
 function watchFileCreated (filename) {
   return new Promise((resolve, reject) => {
     const TIMEOUT = 2000
@@ -1171,5 +1229,3 @@ function watchFileCreated (filename) {
     }, INTERVAL)
   })
 }
-
-function noop () {}

test/error-objects.test.js

@@ -5,8 +5,10 @@ process.env.TZ = 'UTC'
 const Writable = require('stream').Writable
 const test = require('tap').test
 const pino = require('pino')
+const semver = require('semver')
 const serializers = pino.stdSerializers
-const _prettyFactory = require('../').prettyFactory
+const pinoPretty = require('../')
+const _prettyFactory = pinoPretty.prettyFactory
 
 function prettyFactory (opts) {
   if (!opts) {
@@ -452,3 +454,46 @@ test('error like objects tests', (t) => {
 
   t.end()
 })
+
+if (semver.gte(pino.version, '8.21.0')) {
+  test('using pino config', (t) => {
+    t.beforeEach(() => {
+      Date.originalNow = Date.now
+      Date.now = () => epoch
+    })
+    t.afterEach(() => {
+      Date.now = Date.originalNow
+      delete Date.originalNow
+    })
+
+    t.test('prettifies Error in custom errorKey', (t) => {
+      t.plan(8)
+      const destination = new Writable({
+        write (chunk, enc, cb) {
+          const formatted = chunk.toString()
+          const lines = formatted.split('\n')
+          t.equal(lines.length, expected.length + 7)
+          t.equal(lines[0], `[${formattedEpoch}] INFO (${pid}): hello world`)
+          t.match(lines[1], /\s{4}customErrorKey: {/)
+          t.match(lines[2], /\s{6}"type": "Error",/)
+          t.match(lines[3], /\s{6}"message": "hello world",/)
+          t.match(lines[4], /\s{6}"stack":/)
+          t.match(lines[5], /\s{6}Error: hello world/)
+          // Node 12 labels the test `<anonymous>`
+          t.match(lines[6], /\s{10}(at Test.t.test|at Test.<anonymous>)/)
+          cb()
+        }
+      })
+      const pretty = pinoPretty({
+        destination,
+        colorize: false
+      })
+      const log = pino({ errorKey: 'customErrorKey' }, pretty)
+      const err = Error('hello world')
+      const expected = err.stack.split('\n')
+      log.info({ customErrorKey: err })
+    })
+
+    t.end()
+  })
+}