modified

node_modules/pino-abstract-transport/.github/dependabot.yml

@@ -0,0 +1,13 @@
+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "monthly"
+    open-pull-requests-limit: 10
+
+  - package-ecosystem: "npm"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+    open-pull-requests-limit: 10

node_modules/pino-abstract-transport/.github/workflows/ci.yml

@@ -0,0 +1,99 @@
+name: CI
+
+on:
+  push:
+    paths-ignore:
+        - 'docs/**'
+        - '*.md'
+  pull_request:
+    paths-ignore:
+        - 'docs/**'
+        - '*.md'
+
+# This allows a subsequently queued workflow run to interrupt previous runs
+concurrency:
+  group: "${{ github.workflow }} @ ${{ github.event.pull_request.head.label || github.head_ref || github.ref }}"
+  cancel-in-progress: true
+
+jobs:
+  dependency-review:
+    name: Dependency Review
+    if: github.event_name == 'pull_request'
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+    steps:
+      - name: Check out repo
+        uses: actions/checkout@v3
+        with:
+          persist-credentials: false
+
+      - name: Dependency review
+        uses: actions/dependency-review-action@v3
+
+  test:
+    name: Test
+    runs-on: ${{ matrix.os }}
+    permissions:
+      contents: read
+    strategy:
+      matrix:
+        node-version: [14, 16, 18]
+        os: [macos-latest, ubuntu-latest, windows-latest]
+        exclude:
+          - node-version: 14
+            os: windows-latest
+    steps:
+      - name: Check out repo
+        uses: actions/checkout@v3
+        with:
+          persist-credentials: false
+
+      - name: Setup Node ${{ matrix.node-version }}
+        uses: actions/setup-node@v3
+        with:
+          node-version: ${{ matrix.node-version }}
+
+      - name: Restore cached dependencies
+        uses: actions/cache@v3
+        with:
+          path: node_modules
+          key: node-modules-${{ hashFiles('package.json') }}
+  
+      - name: Install dependencies
+        run: npm i --ignore-scripts
+
+      - name: Run Tests
+        run: npm run test-ci
+
+      - name: Coveralls Parallel
+        uses: coverallsapp/github-action@v2.1.2
+        with:
+          github-token: ${{ secrets.github_token }}
+          parallel: true
+          flag-name: run-${{ matrix.node-version }}-${{ matrix.os }}
+
+  coverage:
+    needs: test
+    runs-on: ubuntu-latest
+    steps:
+      - name: Coveralls Finished
+        uses: coverallsapp/github-action@v2.1.2
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          parallel-finished: true
+
+  automerge:
+    name: Automerge Dependabot PRs
+    if: >
+        github.event_name == 'pull_request' &&
+        github.event.pull_request.user.login == 'dependabot[bot]'
+    needs: test
+    permissions:
+      pull-requests: write
+      contents: write
+    runs-on: ubuntu-latest
+    steps:
+      - uses: fastify/github-action-merge-dependabot@v3
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}

node_modules/pino-abstract-transport/.husky/pre-commit

@@ -0,0 +1,4 @@
+#!/usr/bin/env sh
+. "$(dirname -- "$0")/_/husky.sh"
+
+npm test

node_modules/pino-abstract-transport/LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2021 pino
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

node_modules/pino-abstract-transport/README.md

@@ -0,0 +1,147 @@
+# pino-abstract-transport
+[![npm version](https://img.shields.io/npm/v/pino-abstract-transport)](https://www.npmjs.com/package/pino-abstract-transport)
+[![Build Status](https://img.shields.io/github/workflow/status/pinojs/pino-abstract-transport/CI)](https://github.com/pinojs/pino-abstract-transport/actions)
+[![Coverage Status](https://coveralls.io/repos/github/pinojs/pino-abstract-transport/badge.svg?branch=master)](https://coveralls.io/github/pinojs/pino-abstract-transport?branch=master)
+[![js-standard-style](https://img.shields.io/badge/code%20style-standard-brightgreen.svg?style=flat)](https://standardjs.com/)
+
+Write Pino transports easily.
+
+## Install
+
+```
+npm i pino-abstract-transport
+```
+
+## Usage
+
+```js
+import build from 'pino-abstract-transport'
+
+export default async function (opts) {
+  return build(async function (source) {
+    for await (let obj of source) {
+      console.log(obj)
+    }
+  })
+}
+```
+
+or in CommonJS and streams:
+
+```js
+'use strict'
+
+const build = require('pino-abstract-transport')
+
+module.exports = function (opts) {
+  return build(function (source) {
+    source.on('data', function (obj) {
+      console.log(obj)
+    })
+  })
+}
+```
+
+## Typescript usage
+Install the type definitions for node. Make sure the major version of the type definitions matches the node version you are using.
+#### Node 16
+```
+npm i -D @types/node@16
+```
+
+## API
+
+### build(fn, opts) => Stream
+
+Create a [`split2`](http://npm.im/split2) instance and returns it.
+This same instance is also passed to the given function, which is called
+synchronously.
+
+If `opts.transform` is `true`, `pino-abstract-transform` will 
+wrap the split2 instance and the returned stream using [`duplexify`](https://www.npmjs.com/package/duplexify),
+so they can be concatenated into multiple transports.
+
+#### Events emitted
+
+In addition to all events emitted by a [`Readable`](https://nodejs.org/api/stream.html#stream_class_stream_readable)
+stream, it emits the following events:
+
+* `unknown` where an unparsable line is found, both the line and optional error is emitted.
+
+#### Options
+
+* `parse` an option to change to data format passed to build function. When this option is set to `lines`,
+  the data is passed as a string, otherwise the data is passed as an object. Default: `undefined`.
+
+* `close(err, cb)` a function that is called to shutdown the transport. It's called both on error and non-error shutdowns.
+  It can also return a promise. In this case discard the the `cb` argument.
+
+* `parseLine(line)` a function that is used to parse line received from `pino`.
+
+## Example
+
+### custom parseLine
+
+You can allow custom `parseLine` from users while providing a simple and safe default parseLine.
+
+```js
+'use strict'
+
+const build = require('pino-abstract-transport')
+
+function defaultParseLine (line) {
+  const obj = JSON.parse(line)
+  // property foo will be added on each line
+  obj.foo = 'bar'
+  return obj
+}
+
+module.exports = function (opts) {
+  const parseLine = typeof opts.parseLine === 'function' ? opts.parseLine : defaultParseLine
+  return build(function (source) {
+    source.on('data', function (obj) {
+      console.log(obj)
+    })
+  }, {
+    parseLine: parseLine
+  })
+}
+```
+
+### Stream concatenation / pipeline
+
+You can pipeline multiple transports:
+
+```js
+const build = require('pino-abstract-transport')
+const { Transform, pipeline } = require('stream')
+
+function buildTransform () {
+  return build(function (source) {
+    return new Transform({
+      objectMode: true,
+      autoDestroy: true,
+      transform (line, enc, cb) {
+        line.service = 'bob'
+        cb(null, JSON.stringify(line))
+      }
+    })
+  }, { enablePipelining: true })
+}
+
+function buildDestination () {
+  return build(function (source) {
+    source.on('data', function (obj) {
+      console.log(obj)
+    })
+  })
+}
+
+pipeline(process.stdin, buildTransform(), buildDestination(), function (err) {
+  console.log('pipeline completed!', err)
+})
+```
+
+## License
+
+MIT

node_modules/pino-abstract-transport/index.d.ts

@@ -0,0 +1,92 @@
+// Type definitions for pino-abstract-transport 0.4.0
+// Project: https://github.com/pinojs/pino-abstract-transport#readme
+// Definitions by: Diyar Oktay <https://github.com/windupbird144>
+
+/// <reference types="node" />
+
+import { Transform } from "stream";
+
+type BuildOptions = {
+  /**
+   * `parseLine(line)` a function that is used to parse line received from pino.
+   * @default JSON.parse
+   */
+  parseLine?: (line: string) => unknown;
+
+  /**
+   * `parse` an option to change to data format passed to build function.
+   * @default undefined
+   *
+   */
+  parse?: "lines";
+
+  /**
+   * `close(err, cb)` a function that is called to shutdown the transport.
+   * It's called both on error and non-error shutdowns. It can also return
+   * a promise. In this case discard the the cb argument.
+   *
+   * @example
+   * ```typescript
+   * {
+   *   close: function (err, cb) {
+   *     process.nextTick(cb, err)
+   *   }
+   * }
+   * ```
+   * */
+  close?: (err: Error, cb: Function) => void | Promise<void>;
+
+  /**
+   * `metadata` If set to false, do not add metadata properties to the returned stream
+   */
+  metadata?: false;
+};
+
+/**
+ * Pass these options to wrap the split2 stream and
+ * the returned stream into a Duplex
+ */
+type EnablePipelining = BuildOptions & {
+  enablePipelining: true;
+};
+
+/**
+ * Create a split2 instance and returns it. This same instance is also passed
+ * to the given function, which is called synchronously.
+ *
+ * @returns {Transform} the split2 instance
+ */
+declare function build(
+  fn: (transform: Transform & build.OnUnknown) => void | Promise<void>,
+  opts?: BuildOptions
+): Transform & build.OnUnknown;
+
+/**
+ * Creates a split2 instance and passes it to the given function, which is called
+ * synchronously. Then wraps the split2 instance and the returned stream into a
+ * Duplex, so they can be concatenated into multiple transports.
+ *
+ * @returns {Transform} the wrapped split2 instance
+ */
+declare function build(
+  fn: (transform: Transform & build.OnUnknown) => Transform & build.OnUnknown,
+  opts: EnablePipelining
+): Transform;
+
+declare namespace build {
+  export interface OnUnknown {
+    /**
+     * `unknown` is the event emitted where an unparsable line is found
+     *
+     * @param event 'unknown'
+     * @param line the unparsable line
+     * @param error the error that was thrown when parsing the line
+     */
+    on(
+      event: "unknown",
+      listener: (line: string, error: unknown) => void
+    ): void;
+  }
+}
+
+export = build;

node_modules/pino-abstract-transport/index.js

@@ -0,0 +1,78 @@
+'use strict'
+
+const metadata = Symbol.for('pino.metadata')
+const split = require('split2')
+const { Duplex } = require('readable-stream')
+
+module.exports = function build (fn, opts = {}) {
+  const parseLines = opts.parse === 'lines'
+  const parseLine = typeof opts.parseLine === 'function' ? opts.parseLine : JSON.parse
+  const close = opts.close || defaultClose
+  const stream = split(function (line) {
+    let value
+
+    try {
+      value = parseLine(line)
+    } catch (error) {
+      this.emit('unknown', line, error)
+      return
+    }
+
+    if (value === null) {
+      this.emit('unknown', line, 'Null value ignored')
+      return
+    }
+
+    if (typeof value !== 'object') {
+      value = {
+        data: value,
+        time: Date.now()
+      }
+    }
+
+    if (stream[metadata]) {
+      stream.lastTime = value.time
+      stream.lastLevel = value.level
+      stream.lastObj = value
+    }
+
+    if (parseLines) {
+      return line
+    }
+
+    return value
+  }, { autoDestroy: true })
+
+  stream._destroy = function (err, cb) {
+    const promise = close(err, cb)
+    if (promise && typeof promise.then === 'function') {
+      promise.then(cb, cb)
+    }
+  }
+
+  if (opts.metadata !== false) {
+    stream[metadata] = true
+    stream.lastTime = 0
+    stream.lastLevel = 0
+    stream.lastObj = null
+  }
+
+  let res = fn(stream)
+
+  if (res && typeof res.catch === 'function') {
+    res.catch((err) => {
+      stream.destroy(err)
+    })
+
+    // set it to null to not retain a reference to the promise
+    res = null
+  } else if (opts.enablePipelining && res) {
+    return Duplex.from({ writable: stream, readable: res, objectMode: true })
+  }
+
+  return stream
+}
+
+function defaultClose (err, cb) {
+  process.nextTick(cb, err)
+}

node_modules/pino-abstract-transport/package.json

@@ -0,0 +1,40 @@
+{
+  "name": "pino-abstract-transport",
+  "version": "1.1.0",
+  "description": "Write Pino transports easily",
+  "main": "index.js",
+  "scripts": {
+    "prepare": "husky install",
+    "test": "standard | snazzy && tap test/*.test.js  && tsd",
+    "test-ci": "standard | snazzy && tap test/*.test.js --coverage-report=lcovonly && tsd"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/pinojs/pino-abstract-transport.git"
+  },
+  "keywords": [
+    "pino",
+    "transport"
+  ],
+  "author": "Matteo Collina <hello@matteocollina.com>",
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/pinojs/pino-abstract-transport/issues"
+  },
+  "homepage": "https://github.com/pinojs/pino-abstract-transport#readme",
+  "dependencies": {
+    "readable-stream": "^4.0.0",
+    "split2": "^4.0.0"
+  },
+  "devDependencies": {
+    "@types/node": "^20.1.0",
+    "husky": "^8.0.0",
+    "snazzy": "^9.0.0",
+    "standard": "^17.0.0",
+    "tap": "^16.0.0",
+    "tsd": "^0.28.0"
+  },
+  "tsd": {
+    "directory": "./test/types"
+  }
+}

node_modules/pino-abstract-transport/test/base.test.js

@@ -0,0 +1,437 @@
+'use strict'
+
+const { once } = require('events')
+const { Transform, pipeline } = require('stream')
+
+const { test } = require('tap')
+const build = require('../')
+
+test('parse newlined delimited JSON', ({ same, plan }) => {
+  plan(2)
+  const expected = [{
+    level: 30,
+    time: 1617955768092,
+    pid: 2942,
+    hostname: 'MacBook-Pro.local',
+    msg: 'hello world'
+  }, {
+    level: 30,
+    time: 1617955768092,
+    pid: 2942,
+    hostname: 'MacBook-Pro.local',
+    msg: 'another message',
+    prop: 42
+  }]
+
+  const stream = build(function (source) {
+    source.on('data', function (line) {
+      same(expected.shift(), line)
+    })
+  })
+
+  const lines = expected.map(JSON.stringify).join('\n')
+  stream.write(lines)
+  stream.end()
+})
+
+test('parse newlined delimited JSON', ({ same, plan }) => {
+  plan(2)
+  const expected = [{
+    level: 30,
+    time: 1617955768092,
+    pid: 2942,
+    hostname: 'MacBook-Pro.local',
+    msg: 'hello world'
+  }, {
+    level: 30,
+    time: 1617955768092,
+    pid: 2942,
+    hostname: 'MacBook-Pro.local',
+    msg: 'another message',
+    prop: 42
+  }]
+
+  const stream = build(function (source) {
+    source.on('data', function (line) {
+      same(expected.shift(), line)
+    })
+  }, { parse: 'json' })
+
+  const lines = expected.map(JSON.stringify).join('\n')
+  stream.write(lines)
+  stream.end()
+})
+
+test('null support', ({ same, plan }) => {
+  plan(1)
+  const stream = build(function (source) {
+    source.on('unknown', function (line) {
+      same('null', line)
+    })
+  })
+
+  stream.write('null\n')
+  stream.end()
+})
+
+test('broken json', ({ same, plan }) => {
+  plan(2)
+  const expected = '{ "truncated'
+  const stream = build(function (source) {
+    source.on('unknown', function (line, error) {
+      same(expected, line)
+      same(error.message, 'Unexpected end of JSON input')
+    })
+  })
+
+  stream.write(expected + '\n')
+  stream.end()
+})
+
+test('pure values', ({ same, ok, plan }) => {
+  plan(3)
+  const stream = build(function (source) {
+    source.on('data', function (line) {
+      same(line.data, 42)
+      ok(line.time)
+      same(new Date(line.time).getTime(), line.time)
+    })
+  })
+
+  stream.write('42\n')
+  stream.end()
+})
+
+test('support async iteration', ({ same, plan }) => {
+  plan(2)
+  const expected = [{
+    level: 30,
+    time: 1617955768092,
+    pid: 2942,
+    hostname: 'MacBook-Pro.local',
+    msg: 'hello world'
+  }, {
+    level: 30,
+    time: 1617955768092,
+    pid: 2942,
+    hostname: 'MacBook-Pro.local',
+    msg: 'another message',
+    prop: 42
+  }]
+
+  const stream = build(async function (source) {
+    for await (const line of source) {
+      same(expected.shift(), line)
+    }
+  })
+
+  const lines = expected.map(JSON.stringify).join('\n')
+  stream.write(lines)
+  stream.end()
+})
+
+test('rejecting errors the stream', async ({ same, plan }) => {
+  const stream = build(async function (source) {
+    throw new Error('kaboom')
+  })
+
+  const [err] = await once(stream, 'error')
+  same(err.message, 'kaboom')
+})
+
+test('set metadata', ({ same, plan, equal }) => {
+  plan(9)
+
+  const expected = [{
+    level: 30,
+    time: 1617955768092,
+    pid: 2942,
+    hostname: 'MacBook-Pro.local',
+    msg: 'hello world'
+  }, {
+    level: 30,
+    time: 1617955768092,
+    pid: 2942,
+    hostname: 'MacBook-Pro.local',
+    msg: 'another message',
+    prop: 42
+  }]
+
+  const stream = build(function (source) {
+    source.on('data', function (line) {
+      const obj = expected.shift()
+      same(this.lastLevel, obj.level)
+      same(this.lastTime, obj.time)
+      same(this.lastObj, obj)
+      same(obj, line)
+    })
+  }, { metadata: true })
+
+  equal(stream[Symbol.for('pino.metadata')], true)
+  const lines = expected.map(JSON.stringify).join('\n')
+  stream.write(lines)
+  stream.end()
+})
+
+test('parse lines', ({ same, plan, equal }) => {
+  plan(9)
+
+  const expected = [{
+    level: 30,
+    time: 1617955768092,
+    pid: 2942,
+    hostname: 'MacBook-Pro.local',
+    msg: 'hello world'
+  }, {
+    level: 30,
+    time: 1617955768092,
+    pid: 2942,
+    hostname: 'MacBook-Pro.local',
+    msg: 'another message',
+    prop: 42
+  }]
+
+  const stream = build(function (source) {
+    source.on('data', function (line) {
+      const obj = expected.shift()
+      same(this.lastLevel, obj.level)
+      same(this.lastTime, obj.time)
+      same(this.lastObj, obj)
+      same(JSON.stringify(obj), line)
+    })
+  }, { metadata: true, parse: 'lines' })
+
+  equal(stream[Symbol.for('pino.metadata')], true)
+  const lines = expected.map(JSON.stringify).join('\n')
+  stream.write(lines)
+  stream.end()
+})
+
+test('custom parse line function', ({ same, plan, equal }) => {
+  plan(11)
+
+  const expected = [{
+    level: 30,
+    time: 1617955768092,
+    pid: 2942,
+    hostname: 'MacBook-Pro.local',
+    msg: 'hello world'
+  }, {
+    level: 30,
+    time: 1617955768092,
+    pid: 2942,
+    hostname: 'MacBook-Pro.local',
+    msg: 'another message',
+    prop: 42
+  }]
+  let num = 0
+
+  function parseLine (str) {
+    const obj = JSON.parse(str)
+    same(expected[num], obj)
+    return obj
+  }
+
+  const stream = build(function (source) {
+    source.on('data', function (line) {
+      const obj = expected[num]
+      same(this.lastLevel, obj.level)
+      same(this.lastTime, obj.time)
+      same(this.lastObj, obj)
+      same(obj, line)
+      num++
+    })
+  }, { metadata: true, parseLine })
+
+  equal(stream[Symbol.for('pino.metadata')], true)
+  const lines = expected.map(JSON.stringify).join('\n')
+  stream.write(lines)
+  stream.end()
+})
+
+test('set metadata (default)', ({ same, plan, equal }) => {
+  plan(9)
+
+  const expected = [{
+    level: 30,
+    time: 1617955768092,
+    pid: 2942,
+    hostname: 'MacBook-Pro.local',
+    msg: 'hello world'
+  }, {
+    level: 30,
+    time: 1617955768092,
+    pid: 2942,
+    hostname: 'MacBook-Pro.local',
+    msg: 'another message',
+    prop: 42
+  }]
+
+  const stream = build(function (source) {
+    source.on('data', function (line) {
+      const obj = expected.shift()
+      same(this.lastLevel, obj.level)
+      same(this.lastTime, obj.time)
+      same(this.lastObj, obj)
+      same(obj, line)
+    })
+  })
+
+  equal(stream[Symbol.for('pino.metadata')], true)
+  const lines = expected.map(JSON.stringify).join('\n')
+  stream.write(lines)
+  stream.end()
+})
+
+test('do not set metadata', ({ same, plan, equal }) => {
+  plan(9)
+
+  const expected = [{
+    level: 30,
+    time: 1617955768092,
+    pid: 2942,
+    hostname: 'MacBook-Pro.local',
+    msg: 'hello world'
+  }, {
+    level: 30,
+    time: 1617955768092,
+    pid: 2942,
+    hostname: 'MacBook-Pro.local',
+    msg: 'another message',
+    prop: 42
+  }]
+
+  const stream = build(function (source) {
+    source.on('data', function (line) {
+      const obj = expected.shift()
+      same(this.lastLevel, undefined)
+      same(this.lastTime, undefined)
+      same(this.lastObj, undefined)
+      same(obj, line)
+    })
+  }, { metadata: false })
+
+  equal(stream[Symbol.for('pino.metadata')], undefined)
+  const lines = expected.map(JSON.stringify).join('\n')
+  stream.write(lines)
+  stream.end()
+})
+
+test('close logic', ({ same, plan, pass }) => {
+  plan(3)
+  const expected = [{
+    level: 30,
+    time: 1617955768092,
+    pid: 2942,
+    hostname: 'MacBook-Pro.local',
+    msg: 'hello world'
+  }, {
+    level: 30,
+    time: 1617955768092,
+    pid: 2942,
+    hostname: 'MacBook-Pro.local',
+    msg: 'another message',
+    prop: 42
+  }]
+
+  const stream = build(function (source) {
+    source.on('data', function (line) {
+      same(expected.shift(), line)
+    })
+  }, {
+    close (err, cb) {
+      pass('close called')
+      process.nextTick(cb, err)
+    }
+  })
+
+  const lines = expected.map(JSON.stringify).join('\n')
+  stream.write(lines)
+  stream.end()
+})
+
+test('close with promises', ({ same, plan, pass }) => {
+  plan(3)
+  const expected = [{
+    level: 30,
+    time: 1617955768092,
+    pid: 2942,
+    hostname: 'MacBook-Pro.local',
+    msg: 'hello world'
+  }, {
+    level: 30,
+    time: 1617955768092,
+    pid: 2942,
+    hostname: 'MacBook-Pro.local',
+    msg: 'another message',
+    prop: 42
+  }]
+
+  const stream = build(function (source) {
+    source.on('data', function (line) {
+      same(expected.shift(), line)
+    })
+  }, {
+    async close () {
+      pass('close called')
+    }
+  })
+
+  const lines = expected.map(JSON.stringify).join('\n')
+  stream.write(lines)
+  stream.end()
+})
+
+test('support Transform streams', ({ same, plan, error }) => {
+  plan(7)
+
+  const expected1 = [{
+    level: 30,
+    time: 1617955768092,
+    pid: 2942,
+    hostname: 'MacBook-Pro.local',
+    msg: 'hello world'
+  }, {
+    level: 30,
+    time: 1617955768092,
+    pid: 2942,
+    hostname: 'MacBook-Pro.local',
+    msg: 'another message',
+    prop: 42
+  }]
+
+  const expected2 = []
+
+  const stream1 = build(function (source) {
+    const transform = new Transform({
+      objectMode: true,
+      autoDestroy: true,
+      transform (chunk, enc, cb) {
+        same(expected1.shift(), chunk)
+        chunk.service = 'from transform'
+        expected2.push(chunk)
+        cb(null, JSON.stringify(chunk) + '\n')
+      }
+    })
+
+    pipeline(source, transform, () => {})
+
+    return transform
+  }, { enablePipelining: true })
+
+  const stream2 = build(function (source) {
+    source.on('data', function (line) {
+      same(expected2.shift(), line)
+    })
+  })
+
+  pipeline(stream1, stream2, function (err) {
+    error(err)
+    same(expected1, [])
+    same(expected2, [])
+  })
+
+  const lines = expected1.map(JSON.stringify).join('\n')
+  stream1.write(lines)
+  stream1.end()
+})

node_modules/pino-abstract-transport/test/types/index.test-d.ts

@@ -0,0 +1,21 @@
+import build, { OnUnknown } from "../../index";
+import { expectType } from "tsd";
+import { Transform } from "stream";
+
+/**
+ * If enablePipelining is set to true, the function passed as an argument
+ * must return a transform. The unknown event should be listened to on the
+ * stream passed in the first argument.
+ */
+expectType<Transform>(build((source) => source, { enablePipelining: true }));
+
+/**
+ * If enablePipelining is not set the unknown event can be listened to on
+ * the returned stream.
+ */
+expectType<Transform & OnUnknown>(build((source) => {}));
+
+/**
+ * build also accepts an async function
+ */
+expectType<Transform  & OnUnknown>(build(async (source) => {}));