watcher

Watch and execute command

Installation

npm install no6-app-watcher -g

How to use

watcher ./watch.js

watch.js is configuration file

How to use in Docker

1. Docker

   docker run -d --name watcher -v ./test/watch.js:/usr/src/app/watch.js -v ./test:/watcher:ro doanthuanthanh88/watcher

2. docker-compose.yaml

   watcher:
     image: doanthuanthanh88/watcher
     container_name: watcher
     tty: true
     volumes:
       - ./test/watch.js:/usr/src/app/watch.js # Overide default configuration file
       - ./test:/watcher:ro                    # Overide default folder watcher

How to run

watcher ./watch.js

watch.js: This is configuration file and it's stored at $CWD

Configuration

The below configuration file is watch.js. You can rename it to anything and pass it into execute command

module.exports = {
  node_modules: ['axios'], # External libraries which will be installed to use in exec.handle
  interval: 500,  # Interval time to watch the changes
  dir: [          # Directories to watch
    './test'
  ],
  ext: [          # File extension to watch
    /\.evt/,
    /\.txt/
  ],
  exec: [         # Map file to execute something
    {
      name: 'all-of-service', # Which is received when user post rest API to execute command remote
      file: /nginx\.evt/,     # When file match this then executing
      cmd: "echo \'thanh\'",  # Execute command here
      delay: 1000,            # Time to delay before executing. If in this period time, if user changes this file many time, it will only execute a last
      onInput: [              # Auto update file at path to make executing
        'path_file_change', 
        'file content'
      ]
      onUpdate: {               # Handke output
        console: true,          # Output to console screen
        async http(msg) {       # Output to rest API. We can use external libs in this. Input is message log
          await require('axios')({
            method: 'POST',
            url: 'https://onapis.com/SEND TO SOMETHING/ID_HERE?group=Test',
            headers: {
              'content-type': 'text/plain'
            },
            data: msg
          })
        }
      },
      onRemove(){}        # Handle when force close or the file is removed
    },
    {
      file: /c\.txt/,
      cmd: 'ping -n 5 127.0.0.1',
      delay: 0,
      handle: {
        console: true
      }
    },
    {
      file: /d\.txt/,
      cmd: 'ping -n 5 127.0.0.1',
      delay: 0,
      handle: {
        console: true
      }
    }
  ]
}