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https://github.com/julesguesnon/ws-filewatcher

:watch: A filewatcher that will create a Websocket server to allow you to know when your file is updated
https://github.com/julesguesnon/ws-filewatcher

buckelscript filewatcher reason reasonml websocket

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:watch: A filewatcher that will create a Websocket server to allow you to know when your file is updated

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# Ws-Filewatcher

Ws-Filewatcher is a cli that will watch for file change and open a websocket server where it will send a message everytime the file is updated

## :zap: Requirements

- [Npm](https://www.npmjs.com/) or [Yarn](https://yarnpkg.com/), the package managers for NodeJs

## :wrench: Installation

Here are the instruction to install the cli globally, but you can do it locally on your projects.

```bash
npm i -g ws-filewatcher
OR
yarn global add ws-filewatcher
```

## :fire: Usage

Here is the minimum you need to write to launch the service:

```bash
ws-filewatcher -f path/to/my/file
```

**:warning: 'path/to/my/file' isn't necessarily an existing file. You may want to listen for a file creation. So if you make a typo in the path, it won't be considered as an error**

### Options

| | Verbose |
| ------------- | --------------- |
| parameter | `--verbose` |
| shortcut | `-v` |
| default value | _(bool)_`false` |
| description | Allow loggings |

| | Port |
| ------------- | ------------------------------------ |
| parameter | `--port` |
| shortcut | `-p` |
| default value | _(number)_`9999` |
| description | Set the port of the WebSocket server |

| | Command |
| ------------- | -------------------------------------------- |
| parameter | `--command` |
| shortcut | `-c` |
| default value | _(string)_`""` |
| description | The command will be run on every file update |

### Full example

```bash
ws-filewatcher -f path/to/my/file -p 8080 -v -c 'cp folder/file other/folder/file'
```

### Client example

_The example assume you are running the code inside a browser_

```javascript
const ws = new WebSocket('ws://localhost:9999')

ws.onmessage = () => {
console.log('My file was updated!')
}
```