mirror of
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109 lines
2.1 KiB
Markdown
109 lines
2.1 KiB
Markdown
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[![logo][logo-image]][logo-url]
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---
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[![NPM version][npm-image]][npm-url]
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[![build status][travis-image]][travis-url]
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[![Test coverage][codecov-image]][codecov-url]
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[![npm download][download-image]][download-url]
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[logo-image]: ./logo.png
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[logo-url]: https://npmjs.org/package/detect-port
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[npm-image]: https://img.shields.io/npm/v/detect-port.svg?style=flat-square
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[npm-url]: https://npmjs.org/package/detect-port
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[travis-image]: https://img.shields.io/travis/node-modules/detect-port.svg?style=flat-square
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[travis-url]: https://travis-ci.org/node-modules/detect-port
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[codecov-image]: https://codecov.io/gh/node-modules/detect-port/branch/master/graph/badge.svg
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[codecov-url]: https://codecov.io/gh/node-modules/detect-port
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[download-image]: https://img.shields.io/npm/dm/detect-port.svg?style=flat-square
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[download-url]: https://npmjs.org/package/detect-port
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> JavaScript Implementation of Port Detector
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## Usage
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```bash
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$ npm i detect-port --save
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```
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```js
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const detect = require('detect-port');
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/**
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* callback usage
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*/
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detect(port, (err, _port) => {
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if (err) {
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console.log(err);
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}
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if (port == _port) {
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console.log(`port: ${port} was not occupied`);
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} else {
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console.log(`port: ${port} was occupied, try port: ${_port}`);
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}
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});
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/**
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* for a yield syntax instead of callback function implement
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*/
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const co = require('co');
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co(function *() {
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const _port = yield detect(port);
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if (port == _port) {
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console.log(`port: ${port} was not occupied`);
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} else {
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console.log(`port: ${port} was occupied, try port: ${_port}`);
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}
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});
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/**
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* use as a promise
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*/
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detect(port)
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.then(_port => {
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if (port == _port) {
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console.log(`port: ${port} was not occupied`);
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} else {
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console.log(`port: ${port} was occupied, try port: ${_port}`);
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}
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})
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.catch(err => {
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console.log(err);
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});
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```
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## Command Line Tool
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```shell
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$ npm i detect-port -g
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```
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### Quick Start
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```shell
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# get an available port randomly
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$ detect
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# detect pointed port
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$ detect 80
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# more help
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$ detect --help
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```
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## Authors
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- [xudafeng](//github.com/xudafeng)
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- [zenzhu](//github.com/zenzhu)
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## License
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[MIT](LICENSE)
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