Chengfang Lu
e72bc061c5
Major changes: - New frontend (platform/web/): Vite + React 18 + TypeScript + Tailwind - 4-module navigation: 数据送标 / 模型管理 / 车队管理 / 系统管理 - Data catalog with charts (DMS/ADAS/Lane 3-tab view) - Quality review workflow (标注质检): Good/Fine/Bad scoring with auto-advance - Audit enhancements: batch operations, rejection categories, Feishu notifications - Operation audit log (操作日志) - World model simulation studio (仿真工坊) - Dataset version management with snapshots and diff - ADAS 7-class dataset integration (138K images organized + compressed) - User management with Feishu integration and pagination - CRUD/search/filter on all pages, card layout redesign - PIL-optimized image overlay rendering - Auto-snapshot on build, in_review workflow stage - Removed embedded algorithm code (now in workspace)
145 lines
3.7 KiB
Markdown
145 lines
3.7 KiB
Markdown
# merge2
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Merge multiple streams into one stream in sequence or parallel.
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[![NPM version][npm-image]][npm-url]
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[![Build Status][travis-image]][travis-url]
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[![Downloads][downloads-image]][downloads-url]
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## Install
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Install with [npm](https://npmjs.org/package/merge2)
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```sh
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npm install merge2
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```
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## Usage
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```js
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const gulp = require('gulp')
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const merge2 = require('merge2')
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const concat = require('gulp-concat')
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const minifyHtml = require('gulp-minify-html')
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const ngtemplate = require('gulp-ngtemplate')
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gulp.task('app-js', function () {
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return merge2(
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gulp.src('static/src/tpl/*.html')
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.pipe(minifyHtml({empty: true}))
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.pipe(ngtemplate({
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module: 'genTemplates',
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standalone: true
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})
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), gulp.src([
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'static/src/js/app.js',
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'static/src/js/locale_zh-cn.js',
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'static/src/js/router.js',
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'static/src/js/tools.js',
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'static/src/js/services.js',
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'static/src/js/filters.js',
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'static/src/js/directives.js',
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'static/src/js/controllers.js'
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])
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)
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.pipe(concat('app.js'))
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.pipe(gulp.dest('static/dist/js/'))
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})
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```
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```js
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const stream = merge2([stream1, stream2], stream3, {end: false})
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//...
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stream.add(stream4, stream5)
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//..
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stream.end()
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```
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```js
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// equal to merge2([stream1, stream2], stream3)
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const stream = merge2()
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stream.add([stream1, stream2])
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stream.add(stream3)
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```
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```js
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// merge order:
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// 1. merge `stream1`;
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// 2. merge `stream2` and `stream3` in parallel after `stream1` merged;
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// 3. merge 'stream4' after `stream2` and `stream3` merged;
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const stream = merge2(stream1, [stream2, stream3], stream4)
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// merge order:
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// 1. merge `stream5` and `stream6` in parallel after `stream4` merged;
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// 2. merge 'stream7' after `stream5` and `stream6` merged;
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stream.add([stream5, stream6], stream7)
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```
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```js
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// nest merge
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// equal to merge2(stream1, stream2, stream6, stream3, [stream4, stream5]);
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const streamA = merge2(stream1, stream2)
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const streamB = merge2(stream3, [stream4, stream5])
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const stream = merge2(streamA, streamB)
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streamA.add(stream6)
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```
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## API
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```js
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const merge2 = require('merge2')
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```
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### merge2()
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### merge2(options)
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### merge2(stream1, stream2, ..., streamN)
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### merge2(stream1, stream2, ..., streamN, options)
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### merge2(stream1, [stream2, stream3, ...], streamN, options)
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return a duplex stream (mergedStream). streams in array will be merged in parallel.
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### mergedStream.add(stream)
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### mergedStream.add(stream1, [stream2, stream3, ...], ...)
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return the mergedStream.
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### mergedStream.on('queueDrain', function() {})
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It will emit 'queueDrain' when all streams merged. If you set `end === false` in options, this event give you a notice that should add more streams to merge or end the mergedStream.
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#### stream
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*option*
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Type: `Readable` or `Duplex` or `Transform` stream.
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#### options
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*option*
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Type: `Object`.
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* **end** - `Boolean` - if `end === false` then mergedStream will not be auto ended, you should end by yourself. **Default:** `undefined`
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* **pipeError** - `Boolean` - if `pipeError === true` then mergedStream will emit `error` event from source streams. **Default:** `undefined`
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* **objectMode** - `Boolean` . **Default:** `true`
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`objectMode` and other options(`highWaterMark`, `defaultEncoding` ...) is same as Node.js `Stream`.
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## License
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MIT © [Teambition](https://www.teambition.com)
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[npm-url]: https://npmjs.org/package/merge2
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[npm-image]: http://img.shields.io/npm/v/merge2.svg
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[travis-url]: https://travis-ci.org/teambition/merge2
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[travis-image]: http://img.shields.io/travis/teambition/merge2.svg
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[downloads-url]: https://npmjs.org/package/merge2
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[downloads-image]: http://img.shields.io/npm/dm/merge2.svg?style=flat-square
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